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Method for detecting integrally breaking force for steel wire rope

A technology of whole rope breaking and steel wire rope, which is used in the preparation of test samples and the application of stable tension/pressure to test the strength of materials. The effect of reducing inspection costs and simplifying inspection steps

Inactive Publication Date: 2012-08-15
PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, for the prior art, since the molten alloy is used for casting and the molten alloy needs to be prepared, there are disadvantages such as high cost and cumbersome operation
Moreover, when carrying out the breaking force test of the whole steel wire rope, the cast body and the end of the steel wire rope are required to have a predetermined bonding strength, otherwise it is easy to cause detachment, and then the whole rope breaking force value of the steel wire rope cannot be measured or cannot be accurately measured

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0027] The specification of 1# wire rope is 22.0NAT6×19+FC1670ZS, and its minimum breaking force standard value is 248KN. The breaking force of the whole rope measured by the method of the present invention is 287KN.

[0028] The whole rope breaking force of the steel wire rope measured by the method of pouring the lead-containing alloy liquid in the prior art is 256KN.

example 2

[0030] The specification of 2# steel wire rope is 32.0NAT6×19W+IWR1770ZS, and its minimum breaking force standard value is 645KN. The breaking force of the whole rope measured by the method of the present invention is 685KN.

[0031] The whole rope breaking force of the steel wire rope measured by the method of pouring the lead-containing alloy liquid in the prior art is 650KN.

[0032] To sum up, the method for detecting the breaking force of the whole steel wire rope of the present invention can simplify the detection steps, reduce the detection cost, and can increase the breaking force of the whole steel wire rope so as to more truly reflect the breaking force of the whole rope of the steel wire rope.

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Abstract

The invention discloses a method for detecting integrally breaking force for a steel wire rope. The method includes spreading apart two ends of the steel wire rope and cleaning the spread ends by detergent; placing one of the two ends into a mold, filling liquid zinc into the mold and taking out the end after the liquid zinc is solidified; placing the other end into the mold, filling zinc liquid into the mold, taking out the end after the liquid zinc is solidified, and obtaining a steel wire rope test sample with solidified zinc slabs at the ends; and carrying out stretching test for the steel wire rope test sample. The method has the advantages that detection steps can be simplified, detection cost is lowered, and the integral breaking force of the steel wire rope can be increased and is truly reflected effectively.

Description

technical field [0001] The invention relates to the technical field of steel wire rope performance detection, and more specifically, relates to a method capable of accurately detecting the breaking force of a whole steel wire rope. Background technique [0002] In the prior art, there are four main methods for testing the breaking force of the whole steel wire rope: pouring method, casing pressure method, winding method and direct clamping method. [0003] The casting method is the most commonly used method for the breaking force test of the whole wire rope. A typical casting method includes the following steps: spread the two ends of the sample, and then pour the molten alloy in the mold, after cooling to room temperature, the sample to be tested is prepared, and then the sample to be tested is put into the sample holder Inside the tensile test. [0004] However, for the prior art, since molten alloy is used for casting and the molten alloy needs to be prepared, there are...

Claims

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Application Information

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IPC IPC(8): G01N3/08G01N1/28
Inventor 吴伟尤大勇卢国清张磊白银兰陈云霞
Owner PANZHIHUA IRON & STEEL RES INST OF PANGANG GROUP
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