Shield Control Cable And The Chuck Norris Impact > 자유게시판

The tetrafluoroethylene-perfluoroalkylvinyl ether copolymer is prescribed in ASTM D 3307, and has two types, i.e. Type I and type II. The tetrafluoroethylene-hexafluoropropylene copolymer is prescribed in ASTM D 2116, and has 4 varieties, i.e. Type I to Type IV. 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 no less than 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: 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 available from MITSUI PETRO CHEMICAL INDUSTRIES, LTD.), and the like. As a way for forming an internal coat through the use of the polyphenylene sulfide, as an example, a melt-extrusion technique and an electrostatic coating method of powder will be cited. So as to improve the adhesion property between a steel wire and the polyphenylene sulfide, it's preferable that the steel wire is previously coated with an acceptable primer.

With respect to Example 22, after a primer FP-001 commercially accessible from CHUKOH CHEMICAL INDUSTRIES, LTD. Further, it can be seen that the management cable produced in Example 5, during which organopolysiloxane was dispersively contained in thermoplastic resins of both the liner and the internal coat, has physical properties virtually equal to the control cables produced in other Examples, in which organopolysiloxane was dispersively contained only in the thermoplastic resin of the liner. Also, it may be seen that the control cable produced in Comparative Examples, through which organopolysiloxane was contained only in the thermoplastic resin of the interior coat, has low sturdiness. Also, as an alternative of the armor layer 5, the conduit 2 could have a shield layer, which is produced by wrapping plural metallic wires or artificial resin wires on the liner 4 helically with a long lead. The number of the strands used in the interior cable 1 and the variety of the steel wires used in the strand should not notably limited, and conventionally identified various mixture thereof will be employed.

Seven steel wires are twisted to acquire one strand, and seven strands are twisted to obtain a wire rope with 7.times.7 building and an outside diameter of 3.0 mm. The surface of the armor 5 is covered with the protecting layer 6 having a thickness of 0.7 mm. Next, the liner was inserted into a conduit having a protective layer made from polypropylene of 0.7 mm in thickness on the outside floor of a springy armor layer having an outdoor diameter of 8.6 mm. The inside coat 3 of which thickness is about 0.35 mm is coated on the surface floor of the inside cable 1. The outside diameter of the inner coat three is 3.7 mm. A thermoplastic resin proven in Tables 1 to four was heated to melt, and the organopolysiloxane obtained within the above was added thereto in a proportion proven in Tables 1 to 4. After they had been uniformly kneaded, a liner having an inside diameter of 4.6 mm and an out of doors diameter of 5.6 mm was molded. The conduit 2 is composed of an armor layer 5 and a protecting layer 6 of a synthetic resin such as polypropylene.

In the protecting layer 6, varied materials conventionally known resembling polypropylene and polyvinyl chloride can be used. Rubber cable is known to be resistant to many pure and common materials and chemicals. Elevator traveling cable is an important link between the elevator car and controller. With the help of superior manufacturing tools and more than 30 years skilled expertise, We're specialised in manufacturing Elevator Cable, Crane Cable, Armored Cable, Welding Cable Manufacturer. Welcome to contact us for Elevator Cable, Crane Cable, Armored Cable, Welding Cable, Control Cable & Power Cable. Submersible cable is specifically designed to provide energy to underwater functions. Also, since a liner containing a specific organopolysiloxane is used in the control cable of the current invention, glorious load efficiency is continued for an extended period of time. The polybutylene terephthalate also has a characteristic that the difference of the initial load effectivity and the load efficiency after the management cable is operated for a long time frame is small. As is evident from the results proven in Tables 1 to 4, the management cables of the present invention produced in Examples are excellent in initial load efficiency and load effectivity after the operation was carried out 1,000,000 occasions compared with the management cables produced in Comparative Examples when both the type of the thermoplastic resin used within the liner in Examples and that in Comparative Examples are the same.