Carbon steel flange with good airtightness

A sealing and carbon steel technology, which is applied in the field of carbon steel flanges, can solve the problems of scrapped stamping parts, etc., and achieve the effect of high corrosion resistance, high strength and good sealing performance

Inactive Publication Date: 2015-04-29
CHANGSHU BAOCHENG HARDWARE PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Many stamping parts are oft

Method used

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Example Embodiment

[0009] The preferred embodiments of the present invention are described in detail below, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to make a clearer and clearer definition of the protection scope of the present invention.

[0010] Wherein, the carbon steel flange with good airtightness comprises a combination of an uppermost thermoplastic resin layer, an asbestos rubber layer in the middle layer, and a low carbon stainless steel layer in the lowermost layer. The thermoplastic resin layer is polyethylene. The low-carbon stainless steel layer is ferritic stainless steel, the thermoplastic resin layer accounts for 7%-12% of the total weight of carbon steel flanges with good sealing properties, and the asbestos rubber layer accounts for the total weight of carbon steel flanges with good sealing properties. 16%-18% of the weight, the low-carbon stainless steel layer accounts for 70%-86% of the total wei...

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PUM

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Abstract

The invention discloses a carbon steel flange with good airtightness. The carbon steel flange with good airtightness comprises a thermoplastic resin layer on the uppermost layer, an asbestos rubber layer in the middle layer, and a low-carbon stainless steel layer at the lowest layer; the thermoplastic resin layer is polyethylene, the low-carbon stainless steel layer is ferritic stainless steel, the thermoplastic resin layer accounts for 7%-12% of the total component of the carbon steel flange with good airtightness, the asbestos rubber layer accounts for 16%-18% of the total component of the carbon steel flange with good airtightness, and the low-carbon stainless steel layer accounts for 70%-86% of the total component of the carbon steel flange with good airtightness. The carbon steel flange with good airtightness provided by the invention has the advantages of being good in sealing property, high in corrosion resistance and strength.

Description

technical field [0001] The invention relates to a carbon steel flange with good sealing performance. Background technique [0002] The annealed structure of low carbon steel is ferrite and a small amount of pearlite, its strength and hardness are low, and its plasticity and toughness are good. Therefore, its cold formability is good, and it can be cold formed by curling, bending, stamping and other methods. This steel has good weldability. Low carbon steel with very low carbon content has very low hardness and poor machinability. Normalizing treatment can improve its machinability. [0003] Low carbon steel has a greater aging tendency, both quenching aging tendency and deformation aging tendency. When the steel is cooled from high temperature quickly, the ferrite scrapes carbon and nitrogen is supersaturated, and it can slowly form iron carbonitride at room temperature, so the strength and hardness of the steel increase, while the plasticity and toughness decrease. This ...

Claims

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Application Information

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IPC IPC(8): B32B15/06B32B15/14B32B25/08
CPCB32B15/06B32B15/18B32B25/08
Inventor 金少白
Owner CHANGSHU BAOCHENG HARDWARE PROD
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