Elevator Cable, Crane Cable, Armored Cable, Welding Cable Manufacturer │ST CABLE > 자유게시판

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Further, it can be seen that the control cable produced in Example 5, through which organopolysiloxane was dispersively contained in thermoplastic resins of both the liner and the inner coat, has bodily properties almost equal to the management cables produced in other Examples, by which organopolysiloxane was dispersively contained only within the thermoplastic resin of the liner. Among the many thermoplastic resins used in the inside coat, polybutylene terephthalate, excessive density polyethylene, polyoxymethylene and polyphenylene-sulfide are significantly preferable as a result of these are glorious in abrasion resistance. The smaller the melt index of the polybutylene terephthalate is, the better the sturdiness comparable to abrasion resistance and stress-cracking resistance is, nevertheless it tends to be difficult for finishing up the extrusion molding. The polybutylene terephthalate is great in thermal resistance, oil resistance and abrasion resistance, and has a low coefficient of friction. Examples of the thermoplastic resin are, for instance, polybutylene terephthalate, excessive density polyethylene, polyoxymethylene, a fluorocarbon resin represented by polytetrafluoroethylene, a polyamide represented by 6,6-nylon, polyphenylene sulfide, and the like, however the present invention isn't limited by the exemplified ones.

Representative examples of the type III are, for example, Teflon FEP160 commercially out there from DUPONT-MITSUI FLUORO CHEMICALS CO., LTD., and the like. Representative examples of the polyoxymethylene are, for instance, DELRIN commercially obtainable from Du Pont, Celcon commercially obtainable from Hoechst Celanese, and the like. Representative examples of the polyamide are, as an example; 6,6-nylon, 6-nylon, 11-nylon, 12-nylon, and the like. With respect to Examples 12 to 15 and Comparative Examples 12 to 14, in accordance with a paste-extrusion technique, 18 parts by weight of kerosene was added to 100 components by weight of polytetrafluoroethylene powder (average particle measurement 25 .mu.m) and kneaded to provide paste, and the paste was extruded beneath high strain to present a tube. With respect to Example 22, after a primer FP-001 commercially obtainable from CHUKOH CHEMICAL INDUSTRIES, LTD. In order to improve the adhesion property between a steel wire and the polyphenylene sulfide, it is preferable that the steel wire is beforehand coated with an appropriate primer. Seven steel wires are twisted to obtain one strand, and seven strands are twisted to acquire a wire rope with 7.times.7 building and an outside diameter of 3.0 mm. Welding cable is appropriate for welding functions on meeting strains, building and shipbuilding.

Elevator Cable, Crane Cable, Armored Cable, Welding Cable worldwide. With the help of advanced manufacturing equipment and more than 30 years professional experience, We're specialized in manufacturing Elevator Cable, Crane Cable, Armored Cable, Welding Cable Manufacturer. Hereinafter, the management cable of the present invention and the technical impact are explained intimately with evaluating some examples and comparative examples. As is obvious from the results proven in Tables 1 to 4, the control cables of the current invention produced in Examples are glorious in initial load effectivity and load effectivity after the operation was carried out 1,000,000 instances in comparison with the management cables produced in Comparative Examples when each the kind of the thermoplastic resin used within the liner in Examples and that in Comparative Examples are the same. As talked about above, since the control cable of the present invention does not necessitate a lubricant, an issue concerning workability for coating a lubricant is solved and irregurality of load efficiency of products due to the uneveness of coating isn't generated.

When the particle measurement of the powder is less than 5 .mu.m, a pinholl is definitely generated as a result of the powder is agglomerated. Among them, polyoxymethylene is preferably utilized in the current invention because a stickslip is hardly generated when polyoxymethylene is used. For example, a method comprising ading the organopolysiloxane having an ultra-excessive viscosity and the organopolysiloxane having a decrease viscosity individually to the thermoplastic resin while heating and kneading the thermoplastic resin and uniformly dispersing them, a technique comprising adding the organopolysiloxane, which is beforehand prepared by mixing the organopolysiloxane having an ultra-high viscosity and the organopolysiloxane having a decrease viscosity in a prescribed proportion, to the melted thermoplastic resin and uniformly dispersing them, and the like might be exemplified. It is preferable that the elastomer has an means to be modified so that a softened polyphenylene sulfide, which is prepared by mixing with the elastomer and kneading them with melting, has a flexural modulus of at most 30000 (ASTM D 790) and a tensile elongation at break of at the least 5% (ASTM D 638). Representative examples of such an elastomer are, as an illustration, an olefin copolymer containing an epoxy group (ethylene content: 88% by weight, glycidyl methacrylate content material: 12% y weight), a hydrogenated styrenebutadience copolymer (TUFTEC M 1913 commercially accessible from Asahi Chemical Industry Co., Ltd.), an ethylene-propylene copolymer (TAFMER PO 680 commercially accessible from MITSUI PETRO CHEMICAL INDUSTRIES, LTD.), and the like.

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