High-strength wear-resisting anti-corrosion bolt

A high-strength, wear-resistant technology, applied in the direction of bolts, nuts, threaded fasteners, etc., can solve the problems of bolt durability and high-strength performance, and achieve the effect of long service life and improved durability

Inactive Publication Date: 2018-02-27
苏州华丰不锈钢紧固件有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] As we all know, bolts, cylindrical threaded fasteners with nuts, are a type of fasteners composed of two parts: head and screw (cylindrical body with external threads), which need to be matched with nuts for tightening Solidly connect two parts with through holes. With the continuous improvement of science and technology, the application market of bolts is becoming wider and wider. Almost all manufacturing industries need to use bolts, so the performance requirements for bolts are getting higher and higher. The most important thing about bolts is their durability and high strength, but the durability and high strength of bolts have gradually failed to meet the growing needs of people.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A high-strength wear-resistant anti-corrosion bolt, comprising: a high-strength body, the outer surface of the screw head of the high-strength body is electroplated with a wear-resistant layer, and the outer surface of the screw rod of the high-strength body is electroplated with an anti-corrosion layer;

[0014] The wear-resistant layer includes the following components in parts by mass: 5 parts of vanadium, 6 parts of cobalt, 6 parts of manganese, 20 parts of magnesium, and 3 parts of molybdenum; the thickness of the wear-resistant layer is 2.0mm;

[0015] The anti-corrosion layer is formed by mixing nickel powder, zinc powder and chromic acid. According to the mass percentage ratio, the nickel powder accounts for 42%, the zinc powder accounts for 49%, and the balance is chromic acid; the anti-corrosion layer The thickness is 0.6mm;

[0016] The high-strength body includes the following components by mass percentage: 0.7% carbon, 1.2% silicon, 2.1% nickel, 2.2% copper...

Embodiment 2

[0018] A high-strength wear-resistant anti-corrosion bolt, comprising: a high-strength body, the outer surface of the screw head of the high-strength body is electroplated with a wear-resistant layer, and the outer surface of the screw rod of the high-strength body is electroplated with an anti-corrosion layer;

[0019] The wear-resistant layer includes the following components in parts by mass: 9 parts of vanadium, 2 parts of cobalt, 14 parts of manganese, 10 parts of magnesium, and 5 parts of molybdenum; the thickness of the wear-resistant layer is 1.0mm;

[0020] The anti-corrosion layer is formed by mixing nickel powder, zinc powder and chromic acid. According to the mass percentage ratio, the nickel powder accounts for 46%, the zinc powder accounts for 41%, and the balance is chromic acid; the anti-corrosion layer The thickness is 1.2mm;

[0021] The high-strength body includes the following components by mass percentage: 0.3% carbon, 1.6% silicon, 1.5% nickel, 2.8% coppe...

Embodiment 3

[0023] A high-strength wear-resistant anti-corrosion bolt, comprising: a high-strength body, the outer surface of the screw head of the high-strength body is electroplated with a wear-resistant layer, and the outer surface of the screw rod of the high-strength body is electroplated with an anti-corrosion layer;

[0024] The wear-resistant layer includes the following components in parts by mass: 7 parts of vanadium, 4 parts of cobalt, 10 parts of manganese, 15 parts of magnesium, and 4 parts of molybdenum; the thickness of the wear-resistant layer is 1.5mm;

[0025] The anti-corrosion layer is formed by mixing nickel powder, zinc powder and chromic acid. According to the mass percentage ratio, the nickel powder accounts for 44%, the zinc powder accounts for 45%, and the balance is chromic acid; the anti-corrosion layer The thickness is 0.9mm;

[0026] The high-strength body includes the following components by mass percentage: 0.5% carbon, 1.4% silicon, 1.8% nickel, 2.5% coppe...

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Abstract

The invention discloses a high-strength wear-resisting anti-corrosion bolt which comprises a high-strength body. The outer surface of a screw head of the high-strength body is electroplated with a wear-resisting layer, the outer surface of a screw rod of the high-strength body is electroplated with an anti-corrosion layer, the wear-resisting layer is prepared from, by mass, 5-9 parts of vanadium,2-6 parts of cobalt, 6-14 parts of manganese, 10-20 parts of magnesium and 3-5 parts of molybdenum. The anti-corrosion layer is prepared by mixing, by mass, 42-46% of nickel powder, 41-49% of zinc powder and the balance chromic acid. In this way, the high-strength wear-resisting anti-corrosion bolt can have the advantages of being high in strength and resistant to wear and corrosion, the durability is greatly improved, and the service life is long.

Description

technical field [0001] The invention relates to a fastener, in particular to a high-strength wear-resistant anti-corrosion bolt. Background technique [0002] As we all know, bolts, cylindrical threaded fasteners with nuts, are a type of fasteners composed of two parts: head and screw (cylindrical body with external threads), which need to be matched with nuts for tightening Solidly connect two parts with through holes. With the continuous improvement of science and technology, the application market of bolts is becoming wider and wider. Almost all manufacturing industries need to use bolts, so the performance requirements for bolts are getting higher and higher. The most important thing about bolts is their durability and high strength, but the durability and high strength of bolts cannot meet the growing needs of people gradually. Contents of the invention [0003] The technical problem mainly solved by the present invention is to provide a high-strength wear-resistant ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16B33/00C22C38/02C22C38/08C22C38/16C22C38/04C22C38/06C22C38/14C22C30/00C22C23/00
CPCF16B33/008C22C23/00C22C30/00C22C38/002C22C38/02C22C38/04C22C38/06C22C38/08C22C38/14C22C38/16
Inventor 徐建华
Owner 苏州华丰不锈钢紧固件有限公司
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