Wire rope with high tensile strength, good elasticity, flexible, wear resistance, long service life, price moderate, and many other advantages, so the application is very broad.

1, the classification of the wire rope

(1) wire rope according to the interactive twist twisting process is divided into right and left interactive twist, twist four concurrent twist right and left

(2) cable, wire rope according to the different divided into fiber core and steel core. Fiber core available jute fiber, synthetic fiber and other properties to meet the requirements. Steel core is divided into independent wire rope core and core wire strands.

(3) the rope but also can according to the shape of the strand is divided into shares and special-shaped wire rope strands wire rope.

2, technical specifications and main use wire rope

(1) technical specifications.

Domestic wire rope there are two standards: (general purpose "(GB/T20118) and (important use wire rope (GB8918).

According to (important use wire rope standard (GB8918), nominal tensile strength of steel wire is divided into 1570 n/m2, 1670 n, 1770 n/was/was, 1960 n / 1870 n/was and was five levels; According to the general use wire rope standard (GB/T20118), nominal tensile strength of steel wire is divided into 1470 n, 1570 n/was/was, 1670 n, 1770 n/was/was, 1870 n, 1960 n/was/was and 2160 n/was seven levels. The technical data can see the important use wire rope (CB 8918) and (general use wire rope "(GB/T20118) regulation.

(2) the wire rope usage.

Wire rope according to the section line number of shares and shares the outer steel wire can be divided into 6 x7, x19, 6 X61 x37, 6, 8 x19, 8 x37 wait for a variety of specifications. That is commonly used in hoisting have 6 x19 and x37 specifications, etc. 6 x19 wire rope can be used as a rope and sling: x37 wire rope sling can be used to block combination.

3, the maximum allowable tensile steel wire rope

Maximum allowable tension of wire rope can be calculated on type: P = T/K

Type: T - minimum breaking force, wire rope kN.

P - the maximum allowable wire rope tension, kN;

K - wire rope safety coefficient, according to the following table.