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High-strength antirust bolt

A high-strength bolt technology, applied in the field of mechanical parts, can solve the problems of wasting energy, low tensile strength, and increasing costs, and achieve the effects of not being easily stretched, high tensile strength, and cost saving

Inactive Publication Date: 2013-01-02
褚介平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The bolts currently used mainly have the following problems: the tensile strength is not high, and they are easy to be elongated, broken, slipped and worn; bolts working in humid atmosphere or corrosive atmosphere are easy to rust and corrode; they cannot be reused , wasting a lot of energy and increasing the cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A high-strength anti-rust bolt, the bolt includes the following components by mass percentage: terbium 0.009%, nickel 0.0023%, strontium 0.43%, zirconium 50 ppm, iridium 70 ppm, platinum 90 ppm, niobium 0.00055%, molybdenum 60 ppm and selenium 4.6%, the balance is iron.

[0014] The bolts have a nominal tensile strength of 1000 MPa, a yield ratio of 0.9, and a nominal yield strength of 900 MPa.

Embodiment 2

[0016] A high-strength anti-rust bolt, the bolt includes the following components by mass percentage: terbium 0.001%, nickel 0.005%, strontium 0.13%, zirconium 70 ppm, iridium 100 ppm, platinum 60 ppm, niobium 0.0009%, molybdenum 30 ppm and tellurium 7.8%, the balance is iron.

[0017] The bolts have a nominal tensile strength of 1000 MPa, a yield ratio of 0.9, and a nominal yield strength of 900 MPa.

Embodiment 3

[0019] A high-strength anti-rust bolt, the bolt includes the following components by mass percentage: terbium 0.02%, nickel 0.0003%, strontium 0.7%, zirconium 20 ppm, iridium 50 ppm, platinum 120 ppm, niobium 0.00005%, molybdenum 90 ppm and arsenic 2.5%, the balance is iron.

[0020] The bolts have a nominal tensile strength of 1000 MPa, a yield ratio of 0.9, and a nominal yield strength of 900 MPa.

[0021] The invention has high tensile strength, fatigue resistance, and is not easy to be elongated, broken, slipped and worn; bolts working in humid atmosphere or corrosive atmosphere environment are rust-proof and corrosion-resistant; they can be reused, reducing resources waste and cost savings.

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Abstract

The invention discloses a high-strength antirust bolt which comprises the following components in percentage by mass: 0.001-0.02% of terbium, 0.0003-0.005% of nickel, 0.13-0.7% of strontium, 20-70ppm of zirconium, 50-100ppm of iridium, 60-120ppm of platinum, 0.00005-0.0009% of niobium, 30-90ppm of molybdenum, 2.5-7.8% of metalloid element and the balance of iron. The high-strength antirust bolt has the advantages of high tensile strength and fatigue resistance, and can be easily lengthened, pulled apart, slipped or abraded; the bolt operating in a moist atmosphere or corrosion atmosphere environment can resist rust and corrosion; and the bolt can be used repeatedly, thereby reducing the waste of resources and saving the cost.

Description

technical field [0001] The invention relates to the field of mechanical spare parts, in particular to a high-strength antirust bolt. Background technique [0002] With the continuous development of automobiles, construction, and mechanical light industry, the requirements for fasteners are getting higher and higher, among which bolts are used in the largest amount, and the quality of bolts directly affects the safety of people's lives and property. High requirements, the current development prospect is to develop high-strength bolts. [0003] The bolts currently used mainly have the following problems: the tensile strength is not high, and they are easy to be elongated, broken, slipped and worn; bolts working in humid atmosphere or corrosive atmosphere are easy to rust and corrode; they cannot be reused , wasting a lot of energy and increasing the cost. Contents of the invention [0004] The technical problem mainly solved by the invention is to provide a high-strength a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/14F16B35/00
Inventor 褚介平
Owner 褚介平