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High temperature resistant anti-corrosion disc-shaped spring

A disc spring, anti-corrosion technology, applied in the direction of low internal friction spring, spring/shock absorber, mechanical equipment, etc., can solve the problem of non-rust, anti-corrosion, anti-magnetic, heat-resistant, surrounding areas and people's hazards , early failure and other issues, to achieve the effect of eliminating leakage events, maintaining strength, and lasting and effective sealing

Inactive Publication Date: 2007-01-24
上海核工碟形弹簧制造有限公司
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

Its main disadvantage is that it does not have anti-rust, anti-corrosion, anti-magnetic, heat-resistant and other characteristics.
[0004] At present, all compensating bolts are ordinary disc springs made of ordinary materials. Due to various effects such as thermal expansion and contraction, high temperature, corrosion, etc., early failure will occur, so that such springs are used as anti-loosening pads for sealing. Reactors, agitators, heat exchangers and other equipment have serious leakage, causing major economic losses to the country, and causing certain harm to surrounding areas and people

Method used

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  • High temperature resistant anti-corrosion disc-shaped spring

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Embodiment 1、2 and 3

[0038] Its manufacturing process is:

[0039] 1. First manufacture high temperature and corrosion resistant disc spring material:

[0040] Step 1. Prepare raw materials and melt them in a melting furnace to make billets. Melting temperature: 1800°C;

[0041] The second step. Put the raw materials into a solid solution in a vacuum high-temperature furnace, and the solid solution temperature is 1220°C;

[0042] The third step. Aging treatment: the temperature is 650°C, the time is 2 hours, and nickel-based alloy is made as the material;

[0043] 2. Then make a high temperature and corrosion resistant disc spring:

[0044] The first step. Stamping: using a compound die to punch a disc spring blank;

[0045] Step 2. Grinding: The disc spring blank surface tolerance, oxidation decarburization and roughness cannot meet the technical requirements of the disc spring, so it must be ground, and the machining allowance is 0.2-0.5mm on one side;

[0046] The third step. Turning...

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Abstract

The present invention relates to a kind of high temperature resistant anticorrosive disc spring, which is made with material comprising C, Si, Mn, Cr, Ni, Ti, Al, W, Mo, Nb, Fe and Cu. The making process includes the steps of: compounding material, smelting in vacuum high temperature furnace, ageing to form nickel base alloy material; punching, grinding, turning to form, heat treatment, shot blasting, pressing, and final surface treatment to obtain the high temperature resistant anticorrosive disc spring. The disc spring is used in avoiding loosing of screw to prevent leakage.

Description

technical field [0001] The invention relates to a high-temperature-resistant and corrosion-resistant disc spring, which can be used in military industry, petrochemical, steel, metallurgy, shipbuilding and other industries. The bolt pretightening applied to flanges on electro-hydraulic integrated automatic control systems, buffer devices, reactors, agitators, heat exchangers, pipeline flanges, and high-pressure valve flanges belongs to the technical field of disc springs. Background technique [0002] Disc spring is referred to as disc spring for short. It is usually formed by metal steel strip, steel plate or forging blank. It is a kind of truncated conical spring with high stiffness and variable stiffness. According to the different sections and shapes, it is mainly divided into ordinary disc springs, trapezoidal disc springs, and tapered trapezoidal disc springs. At present, ordinary disc springs are widely used in China. [0003] Commonly used materials for manufacturin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C19/05C22C1/02F16F1/02
Inventor 王祥林沈子建黄年胜
Owner 上海核工碟形弹簧制造有限公司
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