Standard steel wire and manufacturing method thereof

A production method and technology of steel wire, applied in the field of metal products, can solve the problems of long verification period, distorted test results, and judgment affecting the performance of test materials, so as to avoid wrong actions and ensure accuracy.

Active Publication Date: 2015-07-29
JIANGYIN FASTEN WIRE PRODUCTS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there are national standards for the tensile test method, the tensile testing machine is used as the test equipment, and there are national metrological verification regulations, and the periodic verification is carried out by the qualification institution (such as the Bureau of Quality and Technical Supervision), but the verification period of the qualification institution is very long, usually One year, during the long period between the two verifications, the tensile testing machine may be unstable, and the test results may be distorted during a certain use, which will affect the judgment of the performance of the test material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1, producing a standard steel wire with a diameter of 7.0 mm, the production process is: high-quality carbon steel wire rod → screening → surface treatment → rough drawing of semi-finished products → heat treatment lead quenching → pickling, phosphating → finished product drawing → Straightening → cleaning and oiling → aging treatment → test to determine the "standard value".

[0022] 1. Carbon steel wire rod: Customized high-quality carbon steel wire rod from Shanghai Baosteel, brand "S20C", diameter 10mm;

[0023] 2. Screening: Through visual inspection and touch, select wire rods without surface scratches, rust and other appearance defects;

[0024] 3. Surface treatment: remove the oxide skin on the surface of the wire rod according to the conventional process, and apply a coating suitable for drawing;

[0025] 4. Roughly drawn semi-finished product: draw the wire rod to 9.00±0.03mm through 1 pass;

[0026] 5. Heat treatment and lead quenching: use a gas...

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Abstract

The invention relates to a standard steel wire and a manufacturing method thereof. The standard steel wire has enough uniformity and rod smoothness; different force values can be obtained through manufacturing steel wires of different diameters, namely one or more measuring value(s) can be used as a standard value(s); a simple and reliable standard sample is provided for daily inspection, stability tracking study, MSA (measurement systems analysis) and cross-over test among test rooms; the accuracy of tensile test data can be systematically ensured, so that the wrong action caused by inaccurate test data is avoided.

Description

technical field [0001] The invention relates to a tensile standard sample—a standard steel wire, in particular to a standard steel wire made of carbon steel wire rod and a manufacturing method thereof, belonging to the technical field of metal products. Background technique [0002] The general tensile testing machine tests the physical properties such as the tensile strength of the test material by performing a destructive tensile test on the test material. Although there are national standards for the tensile test method, the tensile testing machine is used as the test equipment, and there are national metrological verification regulations, and the periodic verification is carried out by the qualification institution (such as the Bureau of Quality and Technical Supervision), but the verification period of the qualification institution is very long, usually One year, during the long period between the two verifications, the tensile testing machine may become unstable, and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C37/04
CPCB21C37/04
Inventor 董东陆建丰方龙清李金忠黄克季斌孔幸东杨晓鸣冯平
Owner JIANGYIN FASTEN WIRE PRODUCTS CO LTD
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