Gasket

FIELD: machine building.

SUBSTANCE: invention relates to machine building, particularly, to components used for separation of stacked porous plates in production process. Proposed circular gasket has opposed first and second surfaces with multiple holes. The said gasket is made of metal wire screen and partially form multiple radial gas-passages, each passing between the gasket inner and outer radial sides to inter-joint them. Method of preparing circular carbon fiber blanks for chemical filtration in vapor phase consists in stacking the aforesaid carbon fiber blanks. Between every two circular blanks, a circular metal screen cushion is laid so as to make stacked circular blanks and circular gaskets form interfaces of internal space inside a stack. Every circular gasket has first and second opposed surfaces and is made so as to form multiple radial gas passages communicating the stack inner space with outside space.

EFFECT: updating production process.

20 cl, 11 dwg

 

The technical field to which the invention relates.

The present invention relates to spacers used to separate stacked in a pile porous plates during the manufacturing process. In particular, the invention relates to an annular metal strip used to separate stacked in a stack of annular workpieces of composite material, in particular, in the process of sealing, for example, by chemical infiltration in the vapor phase.

The level of technology

Procurement of composite material can, in particular, represent a ring blanks for the manufacture of brake discs or other moving parts.

Device for sealing an annular blanks for the manufacture of brake discs and similar parts are described, for example, in patent application U.S. No. 10/468031, filed August 14, 2003; an example of such a device is presented in figure 1.

1 very schematically shows a process chamber having a cavity 10, which includes a set of annular blanks or plates 20 made of carbon fiber. Billets set are stacked, with their Central openings are essentially aligned in the vertical direction. A stack can consist of several superimposed one on the other sections of the stack, separated by one or more between the exact bearing plates 12.

Stacked in the stack of plates separated from each other by separators 30. As shown in figure 2, the separator 30 may be arranged radially, and the number could be different. The separator is formed between adjacent substrates gaps 22, having essentially the same height, and provide communication between the internal volume 24 of the stack formed essentially vertically aligned Central openings of the plates, and external volume 26 on the outside of the stack and inside the cavity 10.

In the example shown in figure 1, in the cavity 10 has one stack of substrates. In other embodiments, the implementation in the same cavity can have multiple stacks of plates arranged next to each other.

The cavity 10 is heated by means of a current collector 14, made for example of graphite, which forms the walls of cavity 10 and inductively associated with the induction coil 16 located outside of the housing 17 surrounding the current collector. Can also be used with other heating methods, such as resistive heating (Joule effect).

In the cavity 10 let the gas containing one or more carbon sources, usually hydrocarbon gases such as methane and/or propane. In the present example, the inlet gas passes through the lower part 10A of the cavity. The gas passes through the zone 18 pre-load the of, formed of one or more perforated plates located one above the other in the lower part of the cavity under the plate 11 supporting a stack of substrates. Gas heated plates pre-heating (heated to the temperature maintained within the cavity), flows freely into the cavity, passing simultaneously into the inner volume 24, external volume 26 and the gap 22. The residual gas is withdrawn from the cavity through the discharge port, provided in the cover 10b, the method of extraction.

The separators 30 are separately mounted units, most often made of aluminum oxide. However, these blocks of aluminum oxide after forming extremely fragile, and their fragility leads to high losses. In fact, in normal use, the building blocks of aluminum oxide are not more than two or three cycles in the compaction process. This, naturally, leads to increase in production costs, since it necessitates frequent replacement of blocks of aluminum oxide.

In addition, by manual replacement of individual blocks of aluminum oxide located between the layers of the workpieces takes a very long time. In the example illustrated in figure 2, shows six such blocks, but in practice can be used up to twelve units. Time costs are compounded EAC what aethelstan, the handling of fragile blocks requires extreme care to avoid breakage. As a rule, preparation of equipment for full compaction process, which uses seven pallets with workpieces (each of which is from twelve to fourteen stacks of sheets), using traditional methods can take from one to two working days.

Another drawback of the use of separate spacers 30 is that they can cause deformation (namely, dents) in the workpiece under the action of the weight of the blanks (and separators)formed on the workpiece. As can be seen from figure 2, between the separators 30 are large areas of the workpiece that are not based on delimiters. Since the workpiece, usually made of plastic material and aluminum oxide, which is made from the separator 30, is not capable of deformation on the surface of the billet in the locations of the spacers 30 have dents. These dents, no matter how small they may be, must be removed by machining on an additional processing step to provide the necessary flat surface required for moving parts. In the use of the workpiece, having a greater thickness than the desired thickness of the finished part, to take account of possible deformations, originating the e in the process of making traditional methods and mechanical treatment aimed at correcting these deformities. Loss of material removed during machining, reduce production efficiency.

The invention

In accordance with the present invention proposed is designed as one element of a ring gasket for separating stacked in a stack of annular blanks.

The gasket of the present invention has an essentially flat annular shape with first and second surfaces opposite one another. At least one of these surfaces is designed in such a way that at least partially forms a set of radially oriented channels for the passage of gases, connecting the inner radial direction side of the strip with its exterior in the radial direction of the party.

The gasket of the present invention preferably has a radial dimensions close the corresponding dimension of the adjacent ring blanks. This means that the gasket preferably has inner and outer diameters that are close to the respective diameters of the ring blanks. If the dimensions of the strip are not identical to the dimensions of annular workpieces, it preferably should be somewhat smaller (i.e. have a larger internal diameter and a smaller outer diameter than to Lavie procurement), and no more (i.e. not wider in the radial direction)than the ring blanks.

In one of the embodiments of the present invention, the gasket is made of a metal material and has a through hole, and the metal material can be a metal mesh material, but is not limited to them. The metal material may not have coverage (including anti-adhesive coating), which simplifies the manufacture and regeneration of the pads and makes them less expensive.

Brief description of drawings

The present invention will become more clear from the following descriptions with reference to the accompanying drawings, where:

1 shows a process chamber for carrying out the process of sealing the folded stack of annular workpieces,

figure 2 shows the location of the individual separators separating stacked in the stack ring blanks, shown in figure 1,

on figa and 3B presents an example of a gasket according to the present invention.

It should be emphasized that the drawings are only illustrative of the embodiments of the present invention, without limiting the scope of its legal protection. It should also be noted that the drawings are not necessarily observed scale, both in General and in certain related types.

Information confirming the possibility of carrying out the invention

The gasket of the present invention has a number of very useful features.

Integral or otherwise made in one piece gasket design facilitates loading stacked in the stack of annular workpieces in a processing chamber in comparison with the technology, in which between every two annular workpieces are laid several individual separators. As noted above, the known construction described above with reference to figure 2, requires the placement of each separator manually. In addition, since the known separators are usually made of fragile materials, such as aluminum oxide, in order to prevent breakage of such separators require extremely careful handling in the course of this already lengthy and time-consuming manual operations. The separators also have a relatively small size and extremely small thickness (for example, 1×4×0.1 inch), which further complicates the work with them.

When using one-piece strip of the present invention one operation installation gasket replaces multiple installations of individual separators according to the known technical solutions. Unlike the above-described known method of loading process chamber, occupying from one daduh days when using one-piece strip of the present invention, the boot time under other equal conditions is greatly reduced and is from two to four hours.

In addition, the design of the whole strip of the present invention provides better support the weight of one or more ring blanks, folded it, and based on a larger area than in the case of individual separators, as shown in figure 2. In particular, the radial width of the one-piece ring gaskets shall be equal to or slightly less than the radial width of annular workpieces. In the result, each of the annular workpiece is less deformed after removal from the process chamber. This means that after compaction process to obtain the necessary undeformed surface requires less machining.

As indicated above, the strip preferably has a radial width approximately the same or slightly less (for example, approximately 5 mm with respect to the outer and/or inner diameter)than the annular workpiece. If the strip had a width, which would be greater than the width of the annular workpiece on its projecting parts would be formed precipitate (for example, pyrolytic carbon)resulting from the decomposition of gas used is about in the compaction process. This can shorten the life of the strip, or cause the need for additional processing to remove such sediment. In addition, if the gasket in a radial direction beyond the outer edge of annular workpieces, it may be difficult to place multiple stacks of annular workpieces in a processing chamber for simultaneous processing (which is often used in practice). This can impact negatively on the efficiency of production and to cause the processing chamber of a certain size can be simultaneously processed fewer stacks.

In the General case one-piece gasket of the present invention contains radially oriented channels or other elements located on one or both surfaces of the strip, which at least partially form a radially oriented channels for the passage of gases, connecting the inner radial direction side of the strip with its exterior in the radial direction of the party. The remark about "partial" formation of channels for the passage of gases made because in some cases, these channels also partially formed by the opposite surface of one of the annular workpiece in contact with the surface of a solid strip. The cross-sectional area of the channels for the passage of gases pre is respectfully comparable to the area of such cross-sectional structure, known from the prior art. However, in some specific cases, these areas may vary.

It should be borne in mind that the total cross-sectional area of the channels for the passage of gases can be changed, for example, by changing the dimensions of each channel, by increasing the number of such channels or other similar methods. The decisive factor should be to ensure the required level of support ring blanks or workpieces resting on the gasket.

In the General case one-piece annular gasket of the present invention should be made of a material that can withstand temperatures of approximately 1100°and in the preferred embodiment (for security) - approximately 1200-1400°C. Preferably, the selected material was the most resistant to chemical interaction with the workpiece at a specified operating temperature.

Examples of materials suitable for the manufacture of one-piece strip according to the invention include metal materials such as stainless steel, alloy, Inconel, titanium, molybdenum, tantalum and tungsten, but are not limited to.

On figa depicted in yet another example, the annular strip 600 of the present invention, and FIGU - corresponding vertical projection with an enlarged image is of castka strip.

Ring gasket 600 is generally made of perforated metal material, the vent area which is approximately 20%to 80%. In a particular example implementation of the annular gasket 600 is made of a metal mesh material.

As indicated above, the metal material used for the manufacture of o-rings 600, must withstand temperatures of approximately 1100°and in the preferred embodiment (for security) - approximately 1200-1400°C. Stainless steel, alloy, Inconel, titanium, molybdenum, tantalum and tungsten are examples of suitable metallic materials.

Ring gasket 600 may be made by cutting annular parts of the respective sizes of the original sheet material. For this you can use any industrial cutting methods, including laser cutting, computer controlled, but not limited to them.

On figa and 3B presents an example of using a metal mesh material for the manufacture of o-rings 600. On a larger fragment figv it is clear that the mesh material is a woven mesh made by known technologies, in particular, including wavy weave wire. The production of mesh with wavy, including cross twill is the group of wires includes a preliminary molding (i.e. wavy crimped) wire, at least in one direction of the grid. On FIGU illustrated wire 602, curved relative to the threads of the wire 604. Thus, wave wire 602 form a recess, through which the transverse wire 604. These hollow (United with each other over the entire surface of the annular strip 600) together form the channels through which the gas used in the compaction process, can pass between the inner and outer radial sides of the annular spacer 600.

In General, the thickness of the annular gasket 600 is approximately equal to twice the diameter of the wire 602 or 604. In one example implementation, the total thickness of the annular gasket 600 is from 1 mm to approximately 6 mm

Parameters of thermal expansion of the annular strip 600 and ring blanks differ significantly, therefore, the adhesion of these elements to each other is negligible and anti-adhesive coating applied to carbon ring seals may not be used. In addition, the metal mesh can easily be restored, for example, by sandblasting.

Under the influence of the temperature at which condensation occurs, there may be some contamination of the workpiece metal. However, it is assumed that the depth of such zagryazneniemenee small compared with the amount of material lost in machined surfaces, and similar operations used in the normal production process (for example, when the intermediate machining to restore the porosity of the workpieces to continue seals). Because of this possible contamination is removed without performing any additional operations.

Although the present invention has been described in relation to preferred variants of its implementation, it should be noted that this description is provided only as one possible example and that the invention can be made appropriate changes or modifications not beyond the scope of the claims attached to the present description.

1. An annular gasket having first and second surfaces opposite one another, and many educated in her holes, characterized by the fact that made of metal material in the form of wire mesh and at least partially forms a set of radially oriented channels for the passage of gases, each of these channels is held between the inner and outer in the radial direction by the sides of the strip, ensuring the connection of the inner radial direction side of the strip with its external radial is upravlenii party.

2. The gasket according to claim 1, characterized in that the metal material is a metal material without coating.

3. The gasket according to claim 1, characterized in that the metal material is a heat-resistant material.

4. The gasket according to claim 1, characterized in that the metal material is one or more materials, including stainless steel, alloy, Inconel, titanium, molybdenum, tantalum and tungsten.

5. The gasket according to claim 1, wherein the wire mesh has square holes from 20 to 80%.

6. The gasket according to claim 1, characterized in that its total thickness is from 1 to 6 mm

7. The gasket according to claim 1, characterized in that the wire mesh is a grid of wavy twisted wire.

8. The gasket according to claim 1, characterized in that its total thickness is equal to twice the diameter of the wire forming the wire mesh.

9. The gasket according to claim 3, characterized in that the heat-resistant material capable of withstanding temperatures up to 1400°C.

10. The method of preparation of ring preparations of carbon fiber for the process of chemical infiltration in the vapor phase, whereby the annular billet of carbon fiber piled in stacks, and between every two annular pieces of carbon fiber is placed an annular good is ADCO of metal material in the form of a wire mesh so that folded into a stack of ring blanks and o-rings together form the boundary of the internal space within the stack, characterized in that each of the annular gasket has first and second surfaces opposite one another, and designed in such a way that at least partially forms a set of radially oriented channels for the passage of gases, which connects the internal space of the stack with the space located outside of the stack.

11. The method according to claim 10, characterized in that the metal material is a metal material without coating.

12. The method according to claim 10, characterized in that the metal material is a heat-resistant material.

13. The method according to claim 10, characterized in that the metal strip contains one or more materials, including stainless steel, alloy, Inconel, titanium, molybdenum, tantalum and tungsten.

14. The method according to claim 10, wherein the wire mesh has square holes from 20 to 80%.

15. The method according to claim 10, characterized in that the total thickness of the gasket is from 1 to 6 mm

16. The method according to claim 10, characterized in that the wire mesh is a grid of wavy twisted wire.

17. The method according to claim 10, characterized in that the total thickness of the strip is equal to double the diameter of the wire, forming a wire mesh.

18. The method according to item 12, wherein the heat-resistant material capable of withstanding temperatures up to 1400°C.

19. The method according to claim 10, characterized in that each of the sealing rings has an outer diameter smaller than the outer diameter of annular workpieces made of carbon fiber, and an inner diameter greater than the inner diameter of annular workpieces made of carbon fiber.

20. The method according to claim 19, characterized in that the external diameter of each of the sealing rings 5 mm less than the outer diameter of annular workpieces made of carbon fiber, and the inner diameter of each of the sealing rings 5 mm larger than the inner diameter of annular workpieces made of carbon fiber.



 

Same patents:

Gasket // 2341701

FIELD: machine building.

SUBSTANCE: invention relates to machine building, particularly, to components used for separation of stacked porous plates in production process. Circular gasket is made of carbon material whereon an adhesive coat layer is applied and incorporates opposed first and second surfaces. Note that at least one of the said surfaces has multiple radial channels each passing between the gasket inner and outer radial sides to inter-joint them. Method of preparing circular carbon fiber blanks for chemical filtration in vapor phase consists in stacking the aforesaid carbon fiber blanks. Between every two circular blanks, a circular metal screen cushion is laid so as to make stacked circular blanks and circular gaskets form interfaces of internal space inside a stack. Every aforesaid circular gasket comprises adhesive coat layer applied thereon to prevent sticking of circular carbon blanks. Method of producing one-piece circular carbon-material gasket consists in forming one-piece circular carbon-material gasket with opposed first and second surfaces and radial channel and applying adhesive coat layer on the said circular gasket.

EFFECT: updating production process.

22 cl, 11 dwg

FIELD: transport.

SUBSTANCE: invention refers to railway transport, namely to brake blocks of railway vehicles. Brake block contains composite friction element, metal frame made of steel strip and solid insert welded to it, wire frame, central boss with orifice for splint and two side bosses. Metal frame of steel strip is less in width than wire frame, it is radiussed over brake block rear surface and pressed in brake block rear surface from both sides of solid insert between side bosses and central boss. Wire framework is essentially two closed up frames around block periphery pressed into composite friction element in the rear part of brake block. Inner parts of two closed up frames overlap each other are folded outside rear part of brake block forming an eye for a splint. Side bosses are made of composite friction material. Solid insert has slot open from the side of its rear surface is enclosed in wire frame and pressed in central boss so that its rear surface is in same plane with central boss rear surface. Enhancement of strength of brake block construction and tool-life gain are reached, as well as spoilage reduction in their manufacturing.

EFFECT: enhancement of strength of brake block construction and tool-life gain are reached, as well as spoilage reduction in their manufacturing.

2 dwg

FIELD: transport.

SUBSTANCE: invention refers to railway transport, namely to brake blocks of railway vehicles. Brake block contains composite friction element, wire framework, solid insert located in central part of block and pressed into composite friction element. Wire framework is essentially two closed up frames around block periphery pressed into composite friction element in the rear part of brake block. Inner parts of two closed up frames overlap each other are folded outside rear part of brake block forming an eye for a splint. The block contains in its rear part wire-mesh or perforated metal sheet pressed into composite friction element. Insert has slot in its upper idle part pressed by composite friction element with orifice for splint and cantilevers symmetrically located over insert length from each side. Upper idle part of insert is put in wire frame and jammed in it. Enhancement of strength, reliability of brake block construction, tool-life gain are reached.

EFFECT: enhancement of strength, reliability of brake block construction, tool-life gain are reached.

4 cl, 3 dwg

Friction plate // 2335670

FIELD: mechanics.

SUBSTANCE: friction plate has two holes and is made in a polymer anti-friction composite material reinforced by a thread or threads. The said polymer anti-friction composite material contains a smaller number of reinforcing threads compared to the other parts of the friction plate.

EFFECT: improved strength and operating properties allowed by reducing fracturing nearby holes.

Friction pad // 2324849

FIELD: mechanic.

SUBSTANCE: the invention relates to the area of mechanical engineering, in particular, to friction pads intended for operation in lubricated assemblies. The friction pad is designed as part of a cylindrical shell, on the internal surface of which rectangular grooves are made. The grooves located longitudinally to the pad length have the same width and depth. The grooves transversal to the pad length, have width increasing with the groove depth. This provides stability of friction characteristics of the pad and decreases friction pair wear due to providing of more favourable conditions for penetration of the lubricating oil to the friction contact area, more efficient cooling of the friction elements, and better cleaning of the friction contact area from the wear products.

EFFECT: increased stability of friction characteristics of pad and decreased friction pair wear.

3 dwg

FIELD: railway transport; brake shoes.

SUBSTANCE: proposed brake shoe contains metal skeleton, polymeric composite friction member, one or several abrasive friction inserts and support layer placed between polymeric composite friction member and metal skeleton. Support layer is placed also between polymeric composite friction member and abrasive friction insert (inserts), or between polymeric composite friction member and part of surface of abrasive friction insert (inserts). Invention is aimed at improving operating characteristics of shoe owing to increased strength of connection of insert (inserts) and polymeric composite friction member by additional locking and reduced possibility of burning out of polymeric composite friction member in zone of insert (inserts) owing to provision of heat insulation of member relative to insert.

EFFECT: increased service life of shoe.

3 dwg

FIELD: railway transport; vehicle brake systems.

SUBSTANCE: proposed brake shoe contains metal skeleton and polymeric composite friction member with dispersed abrasive particles. Introduced additionally into composite member are porous abrasive particles, pore sizes in particles are commensurable with sizes of dispersed abrasive particles.

EFFECT: improved operating characteristics of shoe owing to increased holding of microabrasive particles in shoe body in process of operation provided by their additional fixing.

Friction lining // 2317455

FIELD: mechanical engineering.

SUBSTANCE: friction lining comprises polymeric matrix, fiber reinforcing components, and fillers. The lining is porous, and the pores are oriented in the direction close to that of rotation of the lining during operation. The greatest number of pores is connected with the surface of the lining.

EFFECT: enhanced reliability.

Friction article // 2304239

FIELD: mechanical engineering, in particular, friction articles used in various friction units.

SUBSTANCE: friction article has marking provided on working surface during molding process. Regularly shaped slot is formed on working surface of article during molding process. Projection (projections) is formed within slot. Size of projection (projections) conforms to the sizes of marking.

EFFECT: improved operating characteristics of article due to the possibility of preventing material from chipping and destruction of article working surface in zone adjoining marking by reducing strain irregularities in this zone of article upon frictional contact.

3 dwg

Friction disk // 2292498

FIELD: mechanical engineering.

SUBSTANCE: friction disk comprises metallic frame provided with eight hollows arranged over the outer contour of the frame and eight openings. The frame is provided with composition friction linings whose friction surfaces are provided with grooves. The openings and hollows are alternate over the periphery of the disk. The friction surface of each lining has twelve grooves. Four grooves are positioned in the zone of the hollows, and the remanding grooves are positioned out of the zones of hollows and openings, or four grooves are positioned in the zone of openings, and remaining grooves are positioned out of the zones of openings and hollows, or four grooves are positioned in the zone of hollows, four grooves are positioned in the zones of openings, and remaining grooves are positioned out of zones of openings and hollows.

EFFECT: enhanced reliability.

3 dwg

Friction article // 2245467

FIELD: mechanical engineering.

SUBSTANCE: friction article is made of a polymeric friction composite reinforced with fibers. The diameter of openings for rivets is larger than that of the reinforcing fibers by a factor of 2-8.

EFFECT: enhanced reliability.

Friction article // 2246645

FIELD: mechanical engineering.

SUBSTANCE: friction article comprises indicator of wearing mounted on the side of the article and made of hollow and projection. The indicator comprises at least two surfaces one of which is a wall and the other one is a flat surface. The plane of the flat surface of the indicator is nonparallel to the plane of the side surface of the article.

EFFECT: improved visibility of wearing indicator.

4 cl, 7 dwg

Friction article // 2251035

FIELD: mechanical engineering.

SUBSTANCE: friction article comprises friction member and metallic structure whose surface is covered with a paint. The paint covering is hard and has relief surface which is defined by the alternating projections and hollows. The hollows receive metallic particles the hardness of which is less than that of the structure metal.

EFFECT: enhanced noise suppresion and simplified design.

2 dwg

Friction article // 2265759

FIELD: mechanical engineering.

SUBSTANCE: proposed friction article contains metal skeleton with holes and molded-on friction member. Friction member is provided with bosses corresponding to holes in skeleton and fitted in holes. Friction member is made of polymeric friction composite. Density of composite of bosses is lower than that of other parts of friction member. Invention is aimed at increasing resistance of connection of skeleton and friction member to shift loads under variable thermal loads in process of operation of friction article and reducing mass of friction article and reducing mass of friction member as a whole.

EFFECT: improved manufacturability.

1 dwg

Friction article // 2269546

FIELD: friction materials.

SUBSTANCE: invention relates to technology of preparing asbestos-free friction article for use in a variety of friction mechanisms (brake assemblies of motor cars and equipment). Friction article comprises 15% of polymeric binder, 6% of reinforcing component, 46% of powdered interaction filler, 32% of metal-containing filler, and, additionally, 1% of pulp composed of fibers degrading at temperature 130-250°C arising on working surface of friction article upon braking. Fibers are selected from group including cotton, cellulose, and viscose fibers.

EFFECT: improved performance characteristics of articles due to reduced probability of formation of gas and liquid phases on friction couple surfaces upon braking.

1 tbl

Friction lining // 2270384

FIELD: mechanical engineering.

SUBSTANCE: friction lining is made of reinforced polymeric friction composition material. The reinforce is made of threads. The inclination of the threads to the plane of the linings varies in thickness of the lining. The angle has a minimum in the vicinity of one surface of the lining, and has a maximum in the vicinity of the opposite surface of the lining.

EFFECT: enhanced reliability.

Friction article // 2270944

FIELD: mechanical engineering.

SUBSTANCE: friction article is ring-shaped and has composite friction member. The friction surface of the friction member is provided with radial grooves. The radial grooves are made in the top section of the outer radius and in the bottom section of the inner radius of the article. The radial grooves are continuous and their width and depth are no less than ¼ of the thickness of the friction article.

EFFECT: enhanced reliability.

1 dwg

Friction article // 2270945

FIELD: mechanical engineering.

SUBSTANCE: friction article comprises metallic frame, friction member made of a polymeric composition and secured to the metallic frame by means of adhesive layer, and means for indicating wear of the friction material. The means for indicating the friction member wear is made of the substrate whose thickness is uniform and is no less than the permissible thickness of the worn friction member. The substrate is positioned from the side of the metallic frame and is made of as polymeric composition as the friction member. The substrate is additionally provided with particles of the material which sounds in the friction of the substrate on the metallic surface, which indicates that the thickness of the worn friction member reaches its permissible value.

EFFECT: enhanced reliability.

1 dwg

Friction article // 2277193

FIELD: mechanical engineering; friction articles.

SUBSTANCE: proposed friction article contains flat reinforcement skeleton and friction member molded to skeleton. Layer of friction member adjoining skeleton is reinforced additionally by means of notched-and-drawn metal sheet fixed on skeleton by welding. Welded joint is formed by separate spots arranged so that at least two wells spots are located in direction of shifting friction member relative to skeleton in operation.

EFFECT: reduced possibility of thermal deformation of skeleton, increased strength of skeleton-to-friction member joint, simplified process of forming high-strength joint of skeleton and friction member.

2 dwg

Friction member // 2283973

FIELD: mechanical engineering; friction members with polymer composite friction components.

SUBSTANCE: proposed friction member has metal framework and polymer composite friction component mounted on it. Polymer composite friction component consists of layers; each layer consists of polymer matrix and filler (or fillers). Polymer composite friction component is made from at least three layers including layer located on working surface of component which is made from unhardened polymer matrix and filler (or fillers); mass ratio of polymer matrix to filler (or fillers) exceeds that of polymer matrix to filler (or fillers) in layer (or layers) of polymer composite friction component located between layer on working surface and layer which is in contact with metal framework. Layer which is in contact with metal framework has ratio of matrix to filler exceeding ratio of matrix to filler in layer (or layers) of polymer composite friction component located between layer which is contact with metal framework and layer located on working surface. Service characteristics of article are improved due to reduced vibrations because of enhanced dampening ability of laminated composite component.

EFFECT: improved service characteristics; reduced running-in time due to charging of working surface in the course of initial period of operation.

Up!