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High-strength forged square chain and production method thereof

A high-strength, chain technology, applied in the direction of metal chains, belts/chains/gears, chain rings, etc., can solve the problems of fatigue performance chains not meeting safety performance standards, low tensile performance, high content of alloy elements, etc., to achieve Low cost, high tensile strength, and excellent fatigue performance

Active Publication Date: 2018-06-29
山东华源索具有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the alloy steel used in the existing domestic lifting chains not only has a high alloy element content, but also has low tensile properties due to material limitations, and the fatigue performance, especially the G120 chain, does not meet the safety performance standards certified by the European Union.

Method used

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  • High-strength forged square chain and production method thereof
  • High-strength forged square chain and production method thereof
  • High-strength forged square chain and production method thereof

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Embodiment Construction

[0022] The high-strength forged square chain of the present invention and its preparation method will be further described below in conjunction with specific examples, so as to help those skilled in the art have a more complete, accurate and in-depth understanding of the inventive concepts and technical solutions of the present invention.

[0023] Such as Figure 1~3 As shown, the high-strength forged square chain of the present invention includes forged rings 10 arranged at intervals, and two forged half-section links 20 are welded to form a long chain structure between adjacent forged rings 10; The arc segment 11 is formed by the straight segment 12 between the arc segments at both ends, and the cross section of the straight segment 12 is a rectangle. The forged half ring 20 is composed of an arc segment 21 and a straight segment 22 located on both sides of the arc segment 21, and the cross section of the straight segment is rectangular. Figure 4 The size of the chain prep...

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Abstract

The invention relates to a high-strength forged square chain and a production method thereof and belongs to the technical field of chain production. The high-strength forged square chain comprises forged rings arranged at intervals; every two forged rings are welded through two forged half chain rings to form a long-chain structure; the high-strength forged square chain is thermally treated. The forged rings and the forged half chain rings are produced with low-alloy steel by means of forging; the low-alloy steel comprises, by weight, 0.021-0.025% of carbon, 0-0.025% of silicon, 1.10-1.40% ofmanganese, 0.40-0.60% of chromium, 0.90-1.10% of nickel, 0.50-0.60% of molybdenum, 0.025-0.050% of aluminum, < / =0.020% of sulfur, < / =0.020% of phosphorus, and the balance of iron and unavoidable impurities.

Description

technical field [0001] The invention relates to the technical field of chain preparation, more specifically, the invention relates to a high-strength forged square chain and a preparation method thereof. Background technique [0002] Chains are generally metal links or rings, which are mostly used for mechanical transmission and traction. The chain mainly includes welding and assembly according to its form. For special chains, it is usually processed by high-quality alloy steel. Its outstanding features are wear resistance, high temperature resistance, low ductility, and will not elongate after being stressed, etc., and its service life is long. , easy to bend, suitable for large-scale and frequent use occasions. At present, the alloy steel used in the existing domestic lifting chains not only has high alloy element content, but also has low tensile properties due to material limitations, and the fatigue performance, especially the G120 chain, does not meet the safety perfo...

Claims

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Application Information

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IPC IPC(8): F16G13/00F16G15/12B21L3/04B23K20/12C22C38/02C22C38/04C22C38/44C22C38/06C21D1/18C21D9/00
CPCB21L3/04B23K20/122C21D1/18C21D9/0087C22C38/02C22C38/04C22C38/06C22C38/44F16G13/00F16G15/12
Inventor 陈占民
Owner 山东华源索具有限公司
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