High-strength square chain and manufacturing method thereof

A high-strength, square chain technology, applied in the direction of metal chains, load-hanging components, transportation and packaging, etc., can solve the problems of low tensile performance, high content of alloy elements, fatigue performance chains that cannot meet safety performance standards, etc. , to achieve the effect of low cost, excellent fatigue performance and high tensile strength

Active Publication Date: 2018-09-21
山东华源索具有限公司
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  • Summary
  • 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 content of alloy elements, but also has low tensile properties due to material limitations, and the fatigue performance, especially the G100 chains, cannot meet the safety performance standards certified by the European Union.

Method used

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  • High-strength square chain and manufacturing method thereof
  • High-strength square chain and manufacturing method thereof
  • High-strength square chain and manufacturing method thereof

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Embodiment Construction

[0021] The high-strength 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.

[0022] like Figure 1-3 As shown, the high-strength square chain of the present invention is sequentially braided by chain links with notches, and forms a closed chain link by friction welding; A straight line segment is formed, the gap is located on the straight line segment, and the cross section of the straight line segment is a rectangle. Figure 4 The size of the chain prepared by the present invention is shown, wherein D represents the specification, and a G100 grade chain of 6-32mm can be prepared.

[0023] The high-strength square chain of the present invention can be prepared through a preparation method comprising the following steps: m...

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Abstract

The invention relates to a high-strength square chain and a manufacturing method thereof, and belongs to the technical field of chain manufacturing. The high-strength square chain is sequentially formed by chain links with notches in a chaining manner, and a closed chain ring is formed by friction welding; and each chain link is formed by arc sections at the two ends and a straight line section between the arc sections at the two ends, the notches are located in the straight line sections, and cross sections of the straight line sections are rectangular. The chain links are formed by low alloysteel bars through drawing, and low alloy steel comprises, by weight, 0.021%-0.025% of carbon, 0-0.025% of silicon, 1.10%-1.40% of manganese, 0.40%-0.60% of chromium, 0.90%-1.10% of nickel, 0.50%-0.60% of molybdenum, 0.025%-0.050% of aluminum, not larger than 0.020% of sulfur, not larger than 0.020% of phosphorus and the balance iron and inevitable impurities.

Description

technical field [0001] The invention relates to the technical field of chain preparation, more specifically, the invention relates to a high-strength 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 a high content of alloy elements, but also has low tensile properties due to material limitations, and the fatigue performance, especially the G100 chains, cannot meet the safety perform...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/44C22C38/02C22C38/04C22C38/06B66C1/12B21L11/00
CPCB21L11/00B66C1/125C22C38/02C22C38/04C22C38/06C22C38/44
Inventor 陈柏含
Owner 山东华源索具有限公司
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