Method of arranging multilayered ice cover for hockey

FIELD: heating.

SUBSTANCE: technical effect consists in enhancement of the ice resistance to destructive loads associated with hockey playing, improvement of the ice plasticity and the ice surface slip properties. In accordance with the method proposed on initially provides for freezing on a lower adhesive layer at least 1 mm thick with admixture of a composite in an amount no more than 50 ppm which is represented by water suspension of polytetrafluorethylene and/or a tetrafluorethylene-hexafluorpropylene copolymer and/or perfluordecaline. One provides for cyclically freezing on layers of varied chemical composition. Within one cycle one successively applies several clear (containing no admixtures) ice layers and several modified layers containing admixtures of ammonia in an amount from 1 ppm to 100 ppm and water suspension of polytetrafluorethylene and/or a tetrafluorethylene-hexafluorpropylene copolymer and/or perfluordecaline in an amount from 0.1 ppm to 50 ppm. The aggregate thickness of modified layers within a single cycle is no more than 2 mm. The aggregate thickness of clear ice layers within a single cycle is no less than 5 mm. After application of the lower layers on the hockey ground underlayer one provides for freezing on upper modified layers containing admixtures of ammonia in an amount from 1 ppm to 100 ppm and water suspension of polytetrafluorethylene and/or a tetrafluorethylene-hexafluorpropylene copolymer and/or perfluordecaline in an amount of approximately 50 ppm.

EFFECT: enhancement of the ice resistance to destructive loads associated with hockey playing, improvement of the ice plasticity and the ice surface slip properties.

5 cl, 1 dwg, 6 ex

 

The invention relates to the creation of artificial ice and can be used in the sport of hockey and construction by creating the artificial ice rinks.

In the prior art there are several ways to obtain a multilayer ice coatings with additives. For example, a method of obtaining ice, according to which the water before freezing impose high molecular weight polymer - polyox in the number of 10-10 wt.% (inventor's certificate SU 444039, F25 3/02, 25.09.74).

The disadvantages of this method of producing artificial ice include the following:

1) the polymer is introduced into an array of ice reduces its hardness,

2) on the surface of the ice formed local bumps, ripples, rippling,

3) the use of high molecular weight polymer is difficult because of its poor solubility in water.

These drawbacks have been eliminated upon receipt of a two-layer ice (Goncharova GU and other Secrets of the ice Palace. // Refrigerating equipment. No. 5 - 2005. - p.10-13), one layer of which (the bottom) has a high hardness to prevent deep penetration of the blade of the skate in the ice, and the other (upper) layer - soft - introduced impurities. As impurities were used film-forming amines, composites plant-based, Vodopyanova solutions.

However, ice obtained by the above method, however, the region which gave insufficient low friction coefficient and, accordingly, it is not enough high-speed properties.

A method of obtaining a multilayer ice, suitable for ice hockey (patent RU №2310142 from 10.11.2007, CL F25 3/02), which includes forming an underlying cause with at least one layer containing added ammonia and aqueous suspension of polytetrafluoroethylene and/or a copolymer of tetrafluoroethylene with HEXAFLUOROPROPYLENE and/or performanceline.

The objective of the invention is to design and create a method of producing a multilayer ice hockey.

The technical result of the invention is to improve the stability of the ice to destructive loads in hockey, increasing its plasticity, i.e. the reduction of the number of chips and curaca after the match and the increase of the sliding properties of the ice surface, maintaining optical transparency.

The technical result is achieved by the fact that the claimed method of obtaining a multilayer ice surface for hockey, including the formation of an underlying cause with at least one layer containing added ammonia and aqueous suspension of polytetrafluoroethylene, and/or a copolymer of tetrafluoroethylene with HEXAFLUOROPROPYLENE, and/or performanceline, also characterized by the fact that first must be lower adhesion layer with a minimum thickness of 1 mm with the addition of not more than 50 ppm of composite water suspense is polytetrafluoroethylene, and/or of a copolymer of tetrafluoroethylene with HEXAFLUOROPROPYLENE, and/or performanceline, then alternately cycles must be water layers with different chemical composition when used in the same cycle sequentially applied several pure without additives layers and multiple sequentially applied modified layers containing added ammonia in an amount of from 1 ppm to 100 ppm and/or aqueous suspension of polytetrafluoroethylene, and/or a copolymer of tetrafluoroethylene with HEXAFLUOROPROPYLENE, and/or performanceline in the amount of from 0.1 ppm to 50 ppm, and the total thickness of the modified layer is not more than 2 mm in one cycle during the formation of the hockey underlying cause, and the total net thickness of the layers is not less than 5 mm in one cycle.

After the application of 2, 3 or 4-th modified layer stack hockey markup, then put not less than 2 pure water without additives with temperature not exceeding 15÷20°C, to prevent detachment (ascent) markup elements. Laying markup on the modified layers provides extra adhesion (sticking) to the ice, and the subsequent cold layers of pure water prevents delamination and bubbling.

To improve the optical perception of the advertising banners are placed after 2 or 3 clean water layers. They also put n is at least two layers of pure water without additives and with a temperature of 15÷20°C.

After marking and advertising of hockey subbase spend frosting the top of the modified layers containing ammonia in an amount of from 1 ppm to 100 ppm and/or aqueous suspension of polytetrafluoroethylene, and/or a copolymer of tetrafluoroethylene with HEXAFLUOROPROPYLENE, and/or performanceline in the amount of from 0.1 ppm to 50 ppm, so that the total thickness of the top modified layers is not less than 10 mm

In addition, the use aqueous suspension, past low-temperature vacuum cleaning chemical compounds that impair the smoothness of the ice surface.

Also used to retrieve ice water is subjected to a preliminary cleaning and deep deaeration.

In addition, the freezing of the upper layers of ice are carried out with lowborough machines.

In addition, for numerazione modified layers using water at a temperature of at least 60°C.

The choice as additives for aqueous suspension of polytetrafluoroethylene, and/or a copolymer of tetrafluoroethylene with HEXAFLUOROPROPYLENE, and/or performanceline not more than 50 ppm, and ammonia in an amount of not more than 100 ppm attributable to the following.

The authors of the invention in the process of studies found that administration of an aqueous suspension of polytetrafluoroethylene, and/or a copolymer of tetrafluoroethylene with HEXAFLUOROPROPYLENE, and/or performace is in an amount of not more than 50 ppm in the top layer of ice sliding properties of the ice surface increases, however, slightly decreases its strength properties, in the framework of the hockey tournament is unacceptable (the ice should not crumble). In this regard, the proposed combination of moving additives with an additive that increases the strength properties of ice - ammonia in an amount of not more than 100 ppm.

With the introduction of aqueous suspension of polytetrafluoroethylene, and/or a copolymer of tetrafluoroethylene with HEXAFLUOROPROPYLENE, and/or performanceline not more than 50 ppm in the inner layers of ice in the formation of ice last array becomes softer and more flexible and is characterized by high wear resistance (minimum amount of snow krosheva and curaca after ice-hockey).

The authors of the present invention determined that use of the additive aqueous suspension of polytetrafluoroethylene, and/or a copolymer of tetrafluoroethylene with HEXAFLUOROPROPYLENE, and/or performanceline more than 50 ppm leads to greater softening and penetration into the lower layers, thus losing hardness.

The authors of the invention in the process of research found that the addition of ammonia in the amount specified in the upper ice layer provides an additional very stable increase of the sliding properties of the ice surface. So the introduction of such additives (in combination with other claimed the additives) creates the conditions for receiving ice from the best physical and mechanical properties for ice-hockey.

It should be noted that use of the additive aqueous suspension of polytetrafluoroethylene, and/or a copolymer of tetrafluoroethylene with HEXAFLUOROPROPYLENE, and/or performanceline and ammonia in the stated quantities, providing a positive impact on the quality of the ice, however, is very low concentrations of the trace that are not only tangible organoleptic person, but does not affect his health, as evidenced by compliance with the stated amounts of additives sanitary requirements for sports facilities.

The choice of thickness of the modified layer is not more than 2 mm in one cycle (the sequence of deposition of pure and modified layers) in the formation of the hockey underlying cause is due to the fact that the higher the layer thickness is excessive softening of the ice monolith, which, in turn, negatively affects the speed of the ice. It is the alternation of pure layer thickness of 5 mm and a modified 2 mm, an optimum balance of moving and plastic properties hockey underlying cause.

Pre-cleaning and deep water deaeration is an additional condition for obtaining a smooth, defect-free, without the inclusion of air bubbles of ice.

Another condition is to observe the temperature for water at the freezing modified the frame layer: when filling the tank lobanas (casting) machines use water at a temperature of at least 60°C, what is important to reduce the speed of crystallization of ice.

The method illustrates the drawing, which shows:

1 - hockey subbase,

2 - level markup and advertising,

3 - adhesion layer,

4 - clean layers of thickness up to 1 mm each, the number of layers is not less than 5,

5 - modified layers of thickness up to 1 mm each, the number of layers is not more than 2, the concentration is from 0.1 to 10 ppm,

6 - clean layers of thickness up to 1 mm each, the number of layers is not less than 5,

7 - modified layers of thickness up to 1 mm each, the number of layers is not more than 2, the concentration is from 0.1 to 10 ppm,

8 - clean layers of thickness up to 1 mm each, the number of layers is not less than 5,

9 - modified layers of thickness up to 1 mm each, the number of layers is not more than 2, the concentration is from 0.1 to 10 ppm,

10 - clean layers of thickness up to 1 mm each, the number of layers is not less than 5,

11 modified layers of thickness up to 1 mm each, the number of layers is not more than 2, the concentration is from 0.1 to 10 ppm,

12 - clean layers of thickness up to 1 mm each, the number of layers is not less than 5,

13 modified layers of thickness up to 1 mm each, the number of layers is not more than 2, the concentration is from 0.1 to 10 ppm,

14 is a modified upper layers, the total thickness nomorejavaman layers not less than 10 mm, the fill is losalini harvester, NH3 concentration from 1 to 100 ppm, is from 0.1 to 50 ppm.

Example 1 R is the realization of the inventive method.

The generation of layered ice hockey.

Formed the underlying cause: first namasagali lower adhesion layer with a thickness of 1 mm with the addition of 50 ppm of composite aqueous suspension of polytetrafluoroethylene and a copolymer of tetrafluoroethylene with HEXAFLUOROPROPYLENE, and performanceline.

Then alternately cycles must be water layers with different chemical composition.

In one cycle sequentially applied pure with no additives layers. Total net thickness of the layers was 5 mm in one cycle.

Then sequentially applied modified layers containing added ammonia in quantities of 1 ppm and a water suspension of polytetrafluoroethylene and a copolymer of tetrafluoroethylene with HEXAFLUOROPROPYLENE, and performanceline in an amount of 0.1 ppm.

The total thickness of the modified layer was 2 mm in one cycle.

In the final cycle of the lower layers on the last modified layer was marking, and 2 cold pure layer - advertising. Completed hockey subbase 3 clean layer of cold water.

Next on the hockey map was namasagali modified upper layers with the addition of ammonia in quantities of 1 ppm and additives - water suspension of polytetrafluoroethylene and a copolymer of tetrafluoroethylene with HEXAFLUOROPROPYLENE, and performanceline in the amount of 50 ppm, sommarnattens modified upper layer was 10 mm

Used water suspension, held a special low-temperature vacuum cleaning chemical compounds that impair the smoothness of the ice surface.

The freezing of the top layer of ice was performed using lowborough machines.

Used to fill the water through the purification system by passing it through a mass filter and activated carbon, and also went deep deaeration.

Pre-treatment of water included the following main stages:

cleaning from mechanical impurities (filter);

lighten and remove chlorine using activated charcoal;

- softening (removal of hardness salts in the ion exchanger);

- demineralization up to 98-99% (reverse osmosis);

- removal of dissolved gases by vacuum and thermal deaeration;

- UV disinfection.

After cleaning, before the introduction of additives water had a value of conductivity of 5 µs/cm-1, pH to 7.8, dissolved oxygen, up to 1 mg/L.

Got ice with high resistance to destructive stresses in hockey, increased plasticity, i.e. the number of chips and curaca after the match reduced. The sliding properties of the ice surface is higher than in the case of other technologies for the deposition of ice hockey.

Example 2 implementing the inventive method.

For the teachings of multilayer ice surface for hockey has formed the underlying cause: first namasagali lower adhesive layer thickness of 1.3 mm with the addition of 25 ppm of the composite - aqueous suspension of a copolymer of tetrafluoroethylene with HEXAFLUOROPROPYLENE and performanceline.

Then alternately cycles must be water layers with different chemical composition.

In one cycle sequentially applied pure with no additives layers. Total net thickness of the layers was 6 mm in one cycle.

Then sequentially applied modified layers containing added ammonia in the amount of 100 ppm and a water suspension of polytetrafluoroethylene and a copolymer of tetrafluoroethylene with HEXAFLUOROPROPYLENE, and performanceline in the number of 50.5 ppm.

The total thickness of the modified layer was 1.2 mm in one cycle.

In the final cycle of the lower layers on the last modified layer was marking, and 2 cold pure layer - advertising. Completed hockey subbase 3 clean layer of cold water.

Next on the hockey map was namasagali modified upper layers with the addition of ammonia in the amount of 100 ppm and additives - water suspension of polytetrafluoroethylene and a copolymer of tetrafluoroethylene with HEXAFLUOROPROPYLENE, and performanceline in the amount of 50 ppm, the total thickness of the upper modified layers was 12 mm

Used water suspension, held a special low-temperature vacuum cleaning chemical compounds, hudayi the smoothness of the ice surface.

The freezing of the top layer of ice was performed using lowborough machines.

Used to fill the water through the purification system by passing it through a mass filter and activated carbon, and also went deep deaeration.

Pre-treatment of water included the following main stages:

cleaning from mechanical impurities (filter);

lighten and remove chlorine using activated charcoal;

- softening (removal of hardness salts in the ion exchanger);

- demineralization up to 98-99% (reverse osmosis);

- removal of dissolved gases by vacuum and thermal deaeration;

- UV disinfection.

After cleaning, before the introduction of additives water had a value of conductivity of 5 µs/cm-1, pH to 7.8, dissolved oxygen, up to 1 mg/L.

Got some ice with high resistance to destructive stresses in hockey, great plasticity, i.e. the number of chips and curaca after the match is much less. The sliding properties of the ice surface was also significantly higher than in the case of other technologies for the deposition of ice hockey.

Example 3 implementing the inventive method.

The generation of layered ice hockey.

Formed the underlying cause: first namasagali lower adhesion layer with a thickness of 1.3 mm dobavki 35 ppm composite - aqueous suspension of polytetrafluoroethylene and a copolymer of tetrafluoroethylene with HEXAFLUOROPROPYLENE, and performanceline.

Then alternately cycles were namasagali water layers with different chemical composition.

In one cycle sequentially applied pure with no additives layers. Total net thickness of the layers was 5.2 mm in one cycle.

Then sequentially applied modified layers containing added ammonia in an amount of 10 ppm and an aqueous suspension of polytetrafluoroethylene and a copolymer of tetrafluoroethylene with HEXAFLUOROPROPYLENE, and performanceline in the amount of 15 ppm.

The total thickness of the modified layer was 1.4 mm in one cycle.

In the final cycle of the lower layers on the last modified layer was marking, and 2 cold pure layer - advertising. Completed hockey subbase 3 clean layer of cold water.

Next on the hockey map was namasagali modified upper layers with the addition of ammonia in the amount of 70 ppm and additives - water suspension of polytetrafluoroethylene and a copolymer of tetrafluoroethylene with HEXAFLUOROPROPYLENE, and performanceline in the number of 49.4 ppm, the total thickness of the upper modified layers was 18 mm

Used water suspension, held a special low-temperature vacuum cleaning from Henichesk the x compounds deteriorating the smoothness of the ice surface.

The freezing of the top layer of ice was performed using lowborough machines.

Used to fill the water through the purification system by passing it through a mass filter and activated carbon, and also went deep deaeration.

Pre-treatment of water included the following main stages:

cleaning from mechanical impurities (filter);

lighten and remove chlorine using activated charcoal;

- softening (removal of hardness salts in the ion exchanger);

- demineralization up to 98-99% (reverse osmosis);

- removal of dissolved gases by vacuum and thermal deaeration;

- UV disinfection.

After cleaning, before the introduction of additives water had a value of conductivity 6 µs/cm-1, pH of 7.8, dissolved oxygen, up to 1 mg/L.

Got some ice with high resistance to destructive stresses in hockey, increased plasticity, i.e. the number of chips and curaca after the match reduced. The sliding properties of the ice surface is higher than in the case of other technologies for the deposition of ice hockey.

Example 4 implementing the inventive method.

To obtain a multilayer ice surface for hockey has formed the underlying cause: first namasagali lower adhesive layer thickness is Noah 1.3 mm with the addition of 25 ppm of the composite - aqueous suspension of a copolymer of tetrafluoroethylene with HEXAFLUOROPROPYLENE.

Then alternately cycles must be water layers with different chemical composition.

In one cycle sequentially applied pure with no additives layers. Total net thickness of the layers was 7 mm in one cycle.

Then sequentially applied modified layers containing added ammonia in the amount of 85 ppm and aqueous suspension of polytetrafluoroethylene and performanceline in the amount of 45 ppm.

The total thickness of the modified layer was 1.6 mm in one cycle.

In the final cycle of the lower layers on the last modified layer was marking, and 2 cold pure layer - advertising. Completed hockey subbase 3 clean layer of cold water.

Next on the hockey map was namasagali modified upper layers with the addition of ammonia in the amount of 20 ppm and additives - aqueous suspension of a copolymer of tetrafluoroethylene with HEXAFLUOROPROPYLENE and performanceline in the number 48,9 ppm, the total thickness of the upper modified layers was 11 mm

Used water suspension, held a special low-temperature vacuum cleaning chemical compounds that impair the smoothness of the ice surface.

The freezing of the top layer of ice was performed using LDO orocznych machines.

Used to fill the water through the purification system by passing it through a mass filter and activated carbon, and also went deep deaeration.

Pre-treatment of water included the following main stages:

cleaning from mechanical impurities (filter);

lighten and remove chlorine using activated charcoal;

- softening (removal of hardness salts in the ion exchanger);

- demineralization up to 98-99% (reverse osmosis);

- removal of dissolved gases by vacuum and thermal deaeration;

- UV disinfection.

After cleaning, before the introduction of additives water had a value of conductivity of 5 µs/cm-1, pH to 7.8, dissolved oxygen, up to 1 mg/L.

Got some ice with high resistance to destructive stresses in hockey, great plasticity, i.e. the number of chips and curaca after the match is much less. The sliding properties of the ice surface was also significantly higher than in the case of other technologies for the deposition of ice hockey.

Example 5 implementing the inventive method.

The generation of layered ice surface for hockey. Part of the techniques of the method was the same as in example 1 except as follows: namasagali lower adhesion layer with a thickness of 1.35 mm with the addition of 30 ppm of composite water suspen the AI of a copolymer of tetrafluoroethylene with HEXAFLUOROPROPYLENE and performanceline.

Then alternately cycles were namasagali water layers with different chemical composition.

In one cycle sequentially applied pure with no additives layers. Total net thickness of the layers was 6.2 mm in one cycle.

Then sequentially applied modified layers containing added ammonia in the amount of 12 ppm and a water suspension of polytetrafluoroethylene and performanceline in the amount of 15 ppm.

The total thickness of the modified layer was 1.4 mm in one cycle.

In the final cycle of the lower layers on the last modified layer was marking, and 2 cold pure layer - advertising. Completed hockey subbase 3 clean layer of cold water.

Next on the hockey map was namasagali modified upper layers with the addition of ammonia in the amount of 70 ppm and additives - water suspension of polytetrafluoroethylene and performanceline in the number of 50.9 ppm, the total thickness of the upper modified layers was 18 mm

Used water suspension, held a special low-temperature vacuum cleaning chemical compounds that impair the smoothness of the ice surface.

Example 6 implementing the inventive method (comparative).

The generation of layered ice hockey.

Formed the underlying cause: first, samarajiva and the lower adhesion layer with a thickness of 0.8 mm with the addition of 35 ppm composite - aqueous suspension of polytetrafluoroethylene and a copolymer of tetrafluoroethylene with HEXAFLUOROPROPYLENE, and performanceline.

Then alternately cycles were namasagali water layers with different chemical composition.

In one cycle sequentially applied pure with no additives layers. Total net thickness of the layers was 3 mm in one cycle.

Then sequentially applied modified layers containing only additive ammonia in an amount of 10 ppm.

The total thickness of the modified layer was 1.4 mm in one cycle.

Then put the markup.

Immediately after marking on the hockey map was namasagali modified upper layers with the addition of ammonia in an amount of 70 ppm, the total thickness of the upper modified layers was 18 mm

Ice did not meet the requirements for high-quality coatings.

The above examples clearly demonstrate that when implementing the inventive method, you may receive the above-mentioned technical result is increased stability of the ice to destructive loads in hockey, increasing its plasticity, i.e. reducing the number of chips and curaca after the match and increase the sliding properties of the ice surface.

1. A method of obtaining a multilayer ice surface for hockey, VK is uchumi formation underlay with, at least one layer containing added ammonia and aqueous suspension of polytetrafluoroethylene and/or a copolymer of tetrafluoroethylene with HEXAFLUOROPROPYLENE and/or performanceline, characterized in that the first must be the lower adhesion layer with a minimum thickness of 1 mm with the addition of not more than 50 million-1composite - aqueous suspension of polytetrafluoroethylene and/or a copolymer of tetrafluoroethylene with HEXAFLUOROPROPYLENE and/or performanceline, then alternately cycles must be water layers with different chemical composition when used in the same cycle sequentially applied several pure without additives layers and multiple sequentially applied modified layers containing added ammonia in an amount of from 1 to 100 million-1and/or aqueous suspension of polytetrafluoroethylene and/or a copolymer of tetrafluoroethylene with HEXAFLUOROPROPYLENE and/or perpendicular in the amount of from 0.1 to 50 million-1moreover , the total thickness of the modified layer is not more than 2 mm in one cycle during the formation of the hockey underlying cause, and the total net thickness of the layers is not less than 5 mm in one cycle, and then to a hockey subbase spend frosting the top of the modified layers containing ammonia in an amount of from 1 to 100 million-1and/or aqueous suspension of polytetrafluorethylen the a and/or copolymer of tetrafluoroethylene with HEXAFLUOROPROPYLENE and/or perpendicular in an amount of about 50 million -1, so that the total thickness of the top modified layers is not less than 10 mm

2. The method according to claim 1, characterized in that use aqueous suspension, past low-temperature vacuum cleaning chemical compounds that impair the smoothness of the ice surface.

3. The method according to any of claim 1 or 2, characterized in that is used to retrieve ice water is subjected to a preliminary cleaning and deep deaeration.

4. The method according to any of claim 1 or 2, characterized in that the freezing of the upper layers of ice are carried out with lowborough machines.

5. The method according to any of claim 1 or 2, characterized in that for numerazione modified layers using water at a temperature of at least 60°C.



 

Same patents:

FIELD: heating.

SUBSTANCE: proposed method of arranging a multilayered ice cover for curling envisages formation of an ice underlayer characterised by enhanced hardness and similar to monocrystal ice in terms of structure and slip properties. Initially one provides for freezing on a lower adhesive layer at least 1 mm thick with admixture of a composite in an amount no more than 50 ppm which is represented by water suspension of polytetrafluorethylene and/or a tetrafluorethylene-hexafluorpropylene copolymer and/or perfluordecaline. Then follows the underlayer formation by way of successively freezing on several clear (containing no admixtures) ice layers each no more than 1 mm. After that one provides for freezing pebble embossments onto the underlayer using water with a temperature no less than 60° C; the pebbles contain admixtures of ammonia in an amount from 0.1 ppm to 100 ppm and water suspension of polytetrafluorethylene and/or a tetrafluorethylene-hexafluorpropylene copolymer and/or perfluordecaline in an amount from 50 ppm to 100 ppm.

EFFECT: extended service life of the ice cover structure produced.

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FIELD: heating systems.

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EFFECT: manufacturing high-elasticity ice.

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EFFECT: production of ice with maximum sliding speed.

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EFFECT: improved movement of sportsmen at turns and possibility to describe turns at higher speed.

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EFFECT: making a surface layer of ice block for speed skating with maximum glide.

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FIELD: chemistry.

SUBSTANCE: invention relates to the composition for making a surface layer of ice for speed skating competitions and training, used for machine lining and freezing-out of at least one layer of ice on the formed ice block, consisting of the following percentage mass components: 0.000075-0.00015% polyvinyl spirit; 0.003-0.0075% glycerine and purified water constituting the remaining percentage.

EFFECT: making a surface layer of ice for speed skating, with maximum glide.

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FIELD: adaptation of ice surface for speed skating competitions and training.

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EFFECT: increased ice surface slipperiness.

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FIELD: adaptation of ice surface for speed skating competitions and training, particularly indoor skating rinks.

SUBSTANCE: ice surface creation method involves preparing ice massif for following ice layers forming; performing prepared ice machine massif shipping through 0.35 mm depth in single operation; spraying purified water at temperature of 40°-75°C onto prepared surface to freeze the first ice layer; performing machine spraying of purified water-based composition at temperature of 40°-75°C and freezing of the second and at least one next layer during previous ice layer shipping, wherein the water-based composition includes polyethylene glycol solution and ammonia spirit with 0.00002-0.0002 % by weight of polyethylene glycol and 0.0005-0.003 % by weight of ammonia spirit; holding each of said layers for time selected from time interval between 20 min and 2 hours at temperature of heat carrier in ice massif base plate pipes equal to -9°C÷ -14°C. Composition for ice surface preparation comprises polyethylene glycol solution with 0.00002-0.0002 % by weight of polyethylene glycol and 0.0005-0.003 % by weight of ammonia spirit, remainder is water.

EFFECT: increased ice surface slipperiness.

8 cl, 3 dwg

FIELD: manufacturing ice.

SUBSTANCE: method comprises freezing the first layer of ice by condensing moisture from the ambient air on the plate of the base with a temperature from -6°C to -11°C provided by circulating a coolant at a temperature from -9°C to -14°C, freezing the second layer and each next layers of ice by supplying cleaned water after the freezing of the previous layer due to circulating coolant in the plate of the base at a temperature from -9°C to -14°C, removing stress by means of slowed down heating of the surface layers of ice up to the temperature of the surface layers ranging from -0.5 to 0.2°C by means of circulation coolant with a temperature from -2°C to -4°C, and planing ice down to a depth of no more than 0.35 mm with adding water at a temperature of 40°-75° C.

EFFECT: enhanced quality of ice.

6 cl, 2 dwg

FIELD: heating.

SUBSTANCE: proposed method of arranging a multilayered ice cover for curling envisages formation of an ice underlayer characterised by enhanced hardness and similar to monocrystal ice in terms of structure and slip properties. Initially one provides for freezing on a lower adhesive layer at least 1 mm thick with admixture of a composite in an amount no more than 50 ppm which is represented by water suspension of polytetrafluorethylene and/or a tetrafluorethylene-hexafluorpropylene copolymer and/or perfluordecaline. Then follows the underlayer formation by way of successively freezing on several clear (containing no admixtures) ice layers each no more than 1 mm. After that one provides for freezing pebble embossments onto the underlayer using water with a temperature no less than 60° C; the pebbles contain admixtures of ammonia in an amount from 0.1 ppm to 100 ppm and water suspension of polytetrafluorethylene and/or a tetrafluorethylene-hexafluorpropylene copolymer and/or perfluordecaline in an amount from 50 ppm to 100 ppm.

EFFECT: extended service life of the ice cover structure produced.

3 cl, 1 dwg

FIELD: heating systems.

SUBSTANCE: invention refers to manufacture of artificial ice and can be used in sports and construction industry when building artificial ice rinks, skating tracks, etc. Artificial ice manufacturing method involves freezing of at least one layer which contains additions of water suspension of polytetrafluoroethylene and/or copolymer of tetrafluoroethylene with hexafluoropropylene and/or perfluorodecalin. At least one layer is frozen by being filled with water which contains addition of water suspension of polytetrafluoroethylene and/or copolymer of tetrafluoroethylene with hexafluoropropylene and/or perfluorodecalin, which passed vacuum low-temperature removal of chemical compounds deteriorating ice surface smoothness.

EFFECT: increasing elasticity and sliding properties of ice surface of artificial ice covering owing to pre-cleaning of suspensions of additions, removal of chemical compounds deteriorating ice surface smoothness (vacuum cleaning).

4 ex, 6 cl

FIELD: systems.

SUBSTANCE: manufacturing method of multi-layer ice cover for figure-skating includes formation of underbase with at least one layer which contains additions of ammonia and water suspension of polytetrafluoroethylene and/or copolymer of tetrafluoroethylene with hexafluoropropylene and/or perfluorodecalin. First, low adhesive layer not less than 1 mm thick is frozen, and there added is not more than 50 ppm of the composite- water suspension of polytetrafluoroethylene and/or copolymer of tetrafluoroethylene with hexafluoropropylene and/or perfluorodecalin; then, low modified water layers with various chemical composition of additions are frozen subsequently so that concentration of the addition- water suspension of polytetrafluoroethylene and/or copolymer of tetrafluoroethylene with hexafluoropropylene and/or perfluorodecalin can uniformly increase from the first layer of low modified layers to the final layer of low modified layers within 0.1 ppm to 50 ppm and total thickness of low modified layers is not less than 30 mm, and freezing of upper modified layers is performed immediately after low modified layers have been applied; at that, total thickness of upper modified layers is not less than 10 mm, and each of upper layers contains additions of ammonia in number of 1 ppm to 100 ppm and additions - water suspension of polytetrafluoroethylene and/or copolymer of tetrafluoroethylene with hexafluoropropylene and/or perfluorodecalin in number of 50 ppm to 100 ppm.

EFFECT: manufacturing high-elasticity ice.

5 cl, 1 dwg

FIELD: heating.

SUBSTANCE: method of massif ice surface production for speed skating competitions and training includes the stages when ice massif is prepared for the subsequent ice laying and chopped mechanically to the depth no more than 35 mm in single operation with the first ice layer pouring and freezing with clean water and polyvinylpyrolidone (PVP) additives and glycerin. Concentrations of the above ingredients are as follows, in wt %: from 0.000025 to 0.000625 for PVP and from 0.00125 to 0.0125 for glycerin at temperature selected from the interval from +40°C to +75°C. The first ice layer is cured during the period selected from 3 to 48 hour interval. Coolant temperature in the ice massif plate pipes is selected from the 9°C to -16°C interval. Then the first layer is mechanically chopped to the depth no more than 0.35 mm in single operation and the second layer is poured and frozen with clean water at the temperature selected from +40°C to +75°C interval. The second layer is cured during the time from 3 to 24 hour interval. The coolant temperature in the ice massif plate pipes is selected from the 9°C to -16°C.

EFFECT: production of ice with maximum sliding speed.

15 cl, 2 dwg

FIELD: chemistry.

SUBSTANCE: invention pertains to the composition for making a surface layer of ice for speed skating competitions and training, used for machine lining and freezing-out of at least one layer of ice on the formed ice block, consisting of the following percentage mass components: 0.000025-0.000625 % polyvinylpyrolidone; 0.00125-0.0125% glycerine; purified water constituting the remaining percentage.

EFFECT: making a surface layer of ice block for speed skating with maximum glide.

3 cl, 2 dwg

FIELD: chemistry.

SUBSTANCE: invention relates to the composition for making a surface layer of ice for speed skating competitions and training, used for machine lining and freezing-out of at least one layer of ice on the formed ice block, consisting of the following percentage mass components: 0.000075-0.00015% polyvinyl spirit; 0.003-0.0075% glycerine and purified water constituting the remaining percentage.

EFFECT: making a surface layer of ice for speed skating, with maximum glide.

3 cl, 2 dwg

FIELD: adaptation of ice surface for speed skating competitions and training.

SUBSTANCE: ice surface creation method involves preparing ice massif for following ice layer application; performing prepared ice machine massif shipping through 0.35 mm depth in single operation; spraying purified water at temperature of 40°-75°C onto prepared surface to freeze the first ice layer; performing machine spraying of water-based composition at temperature of 40°-75°C and freezing of the second and at least one finishing layer during previous ice layer shipping, wherein the water-based composition includes 0.003-0.009% by weight of glycerin and 0.0003-0.001 % by weight of surfactant; holding said layers for time selected from time interval between 20 min and 2 hours at temperature of heat carrier in ice massif base plate pipes equal to -9°C÷ -14°C.

EFFECT: increased ice surface slipperiness.

10 cl, 3 dwg

FIELD: adaptation of ice surface for speed skating competitions and training, particularly indoor skating rinks.

SUBSTANCE: ice surface creation method involves preparing ice massif for following ice layers forming; performing prepared ice machine massif shipping through 0.35 mm depth in single operation; spraying purified water at temperature of 40°-75°C onto prepared surface to freeze the first ice layer; performing machine spraying of purified water-based composition at temperature of 40°-75°C and freezing of the second and at least one next layer during previous ice layer shipping, wherein the water-based composition includes polyethylene glycol solution and ammonia spirit with 0.00002-0.0002 % by weight of polyethylene glycol and 0.0005-0.003 % by weight of ammonia spirit; holding each of said layers for time selected from time interval between 20 min and 2 hours at temperature of heat carrier in ice massif base plate pipes equal to -9°C÷ -14°C. Composition for ice surface preparation comprises polyethylene glycol solution with 0.00002-0.0002 % by weight of polyethylene glycol and 0.0005-0.003 % by weight of ammonia spirit, remainder is water.

EFFECT: increased ice surface slipperiness.

8 cl, 3 dwg

FIELD: manufacturing ice.

SUBSTANCE: method comprises freezing the first layer of ice by condensing moisture from the ambient air on the plate of the base with a temperature from -6°C to -11°C provided by circulating a coolant at a temperature from -9°C to -14°C, freezing the second layer and each next layers of ice by supplying cleaned water after the freezing of the previous layer due to circulating coolant in the plate of the base at a temperature from -9°C to -14°C, removing stress by means of slowed down heating of the surface layers of ice up to the temperature of the surface layers ranging from -0.5 to 0.2°C by means of circulation coolant with a temperature from -2°C to -4°C, and planing ice down to a depth of no more than 0.35 mm with adding water at a temperature of 40°-75° C.

EFFECT: enhanced quality of ice.

6 cl, 2 dwg

FIELD: chemical industry; methods of production of the artificial ice.

SUBSTANCE: the invention presents the method of production of the artificial ice providing for production of, at least, one lower layer and the subsequent production of the upper soft layer with the polymer additive. The upper layer is produced by freezing on the surface of the filling water, which contains the additive of the aqueous suspension of the polytetrafluoroethylene and-or the interpolymer of tetrafluoroethylene with hexafluoropropylene and-or perfluorodecahydronaphthalene in the amount of no more than 10 ppm, and also the additive of the low-molecular polymer in the amount of no more than 10 ppm. Usage of the given method allows to improve the sliding on the surface of the ice at the expense of reduction of the force of friction.

EFFECT: the invention ensures the improved sliding on the surface of the ice at the expense of reduction of the force of friction.

6 cl

FIELD: refrigeration.

SUBSTANCE: method comprises freezing ice on concrete plate and allowing the ice to stand at a given temperature along a specified time interval.

EFFECT: enhanced rigidity and lowered friction coefficient of the ice.

10 cl

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