Long oped article from nonwovens
(57) Abstract:Long oped product of non-woven material may be used to produce products in the form of twine, in the manufacture of ropes and cables and can improve the strength characteristics of the products at low cost. Long oped the product is made of mechanically twisted from 25 to 80 turns per meter of beam tape width from 20 to 100 mm non-woven fabric weighing more than 35 g/m2. Tape non-woven fabric in an amount of not less than two gather in a bunch and fill in the spinning machine, where they are twisted with a twist of from 25 to 80 turns per meter. 1 Il. The invention relates to products in the form of twine, cordage and ropes.Known long-oped product of non-woven material (SU 1451190 A1, 15.01.1989).This product is a thread that is not used in the manufacture of twine, cordage and ropes.The objective of the invention is the creation of long twisted products of nonwoven material in the form of twine, cordage, ropes with high strength characteristics at low cost.This technical result in long wit the product is the manufacture of ropes and rope it is made of mechanically twisted from 25 to 80 turns per meter of beam tape width from 20 to 100 mm non-woven fabric weighing more than 35 g/m2.The drawing shows a diagram of receipt of the product.For the manufacture of twine or kabalci non-woven material density of 35 g/m2cut into narrow tape width from 20 to 100 mm strips of nonwoven material density less than 35 g/m2and a width of less than 20 mm do not have the necessary mechanical strand tensile strength. Tapes of a width exceeding 100 mm torsional tear unevenly and diameter, breaking strength and the linear density of the developed products are not equal in length, which is unacceptable when using them.Tape non-woven fabric in an amount of not less than two gather in a bunch and fill in the spinning machine, where is their curl. Depending on the diameter of the resulting kabalci or twine must be secured from 25 to 80 turns per meter by adjusting the equipment. Twine is a ready-made product, and Kabaka is then used to strand ropes and ropes.As the tape of nonwoven material, it is preferable to use waste products, such as scraps of edges, substandard cloth.Thus obtained ropes and with success can replace the similar products made from hemp, sitali, cotton is s waste which contain synthetic fibers (polyester, viscose, polypropylene and others) and therefore do not rot, are not affected by mold, insects and rodents. Long oped product of non-woven material, characterized in that for obtaining the product in the form of twine and use the product in the manufacture of ropes and rope it is made of mechanically twisted from 25 to 80 turns per meter of beam tape width from 20 to 100 mm non-woven fabric weighing more than 35 g/m2.
FIELD: chemistry; production methods of composition for thread coating.
SUBSTANCE: composition includes x) = 10-50 mass.% of polyethylene wax with melting temperature from 110 to 150°C, y) = 10-50 mass.% compound ether compositions of conjoint polymer produced from α-olefine containing from 10 to 24 carbon atoms and unsaturated dicarboxylic acid selected from maleinic acid, fumaric acid, itaconic acid and citraconic acid z) = 100-(x+y) mass.% of silicon oil composition with 100 to 100- MPa-c viscosity at 20°C. Threads, fibres or filaments produced by spinning, stretching and texturing, if necessary, are subject to treatment with the specified composition.
EFFECT: items are ensured with high resistance property.
17 cl, 2 tbl, 3 ex
FIELD: machine building.
SUBSTANCE: invention is related to machine building, to drives for reciprocal motion of units and parts. Driving cable for reciprocal motion of mechanisms comprises movable metal core with protective coat in the form of synthetic bush with ribbed surface. Cable is installed inside concentric armored shell with walls made of synthetic material in the form of internal and external bushes. On surface of shell internal bush along its whole length there is at least one rib arranged with helical shape with preset pitch of turns. Helical rib has conical shape in cross section and is arranged with spiral pitch that provides for shell contact with core only along surface of helical rib at any permissible bending of cable.
EFFECT: reduced friction forces during core displacement relative to shell and according reduction of forces applied by operator to control lever.
3 cl, 1 dwg
FIELD: construction industry.
SUBSTANCE: rope-shaped device, and namely chord rope, single cord and rope, includes longitudinal fibres of longitudinal fibre device, which consist of individual fibres, strands, bundle of strands and/or single chords processed so that core, intermediate cover and cover is obtained. The device includes at least one additional fibre or an additional bundle of fibres located transversely relative to longitudinal fibres essentially at various angles and passed around longitudinal fibres so that the latter are essentially non-sliding and unmovable relative to each other. Additional fibre is bound at least one time with longitudinal fibres of the longitudinal fibre device, owing to which longitudinal fibres are rigidly fixed.
EFFECT: invention provides binding of longitudinal fibres to each other in the longitudinal fibre device and prevents their mutual sliding.
32 cl, 22 dwg
FIELD: textile, paper.
SUBSTANCE: at least one strand has a layer of indicator fibre strands to control rope endurance. At least one strand has a layer of indicator fibre strands at least with one indicator strand, which, compared to other strands, is less resistant to wear. A method to monitor endurance of a rope of synthetic fibres is proposed, which includes a permanent monitoring of a rope with the help of indicator fibres. An elevator is proposed, which provides for usage of a rope of synthetic fibres with indicator fibres, having at least one thread with a lower resistance to wear compared to others.
EFFECT: detection of rope failure limit and opportunity to more fully use the economic potential of up-to-date carrying facilities.
FIELD: textile, paper.
SUBSTANCE: rope is made of high-strength fibres, preferably from a mix of high-strength polyethylene fibres with aramid fibres and/or fibres of ester liquid crystal copolymers. Fibres and/or the rope are coated with a composition containing a silicon resin functionalised with amines and a neutralised low-molecular polyethylene.
EFFECT: ropes have higher wear resistance in multiple reeling onto pulleys.
10 cl, 5 ex
SUBSTANCE: method of applying a latex-resorcinol-formaldehyde coating on a synthetic rope comprises a step of holding the synthetic rope in air and subsequently removing part of the braid from the ends of the saturated and heat treated rope, running to the sidewall industrial rubber article.
EFFECT: obtaining a synthetic rope with high strength of bonding with rubber for producing high-strength rubber-cord casings.
SUBSTANCE: invention relates to production of rubber-cord casings reinforced by synthetic rope. Technical result is achieved due to dissolution of rubber mixture in an organic solvent and application of obtained liquid mixture on turns and filling inter-turn space of synthetic rope workpiece with subsequent drying for production of high-quality high-strength rubber-cord casings.
EFFECT: high quality of rubber-cord casing, reinforced by synthetic rope, without shifting angle of applying synthetic rope during assembly.