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Explosive welding method of super austenitic stainless steel 904L clad steel plate

A technology of austenitic stainless steel and super austenite, which is applied in welding equipment, welding/welding/cutting items, non-electric welding equipment, etc., can solve the problems of high market prices, achieve saving usage, high welding quality, and long-term stability Use will not effect

Inactive Publication Date: 2009-10-21
SICHUAN JINGLEI SCI & TECH CO LED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the high market price of 904L and the need to meet the strength requirements, it is necessary to use 904L in combination with ordinary metals.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0021] Substrate blanking process:

[0022] The steel plate should have a quality certificate with clear marks; the steel plate whose material has ultrasonic testing requirements should pass the ultrasonic test according to the requirements; the steel number, specification, and material inspection number of the material are consistent with the quality tracking card.

[0023] Mark the line according to the feeding specification and size of the quality tracking card. When marking the line, ensure that the included angle of the dimension lines on the four sides of the steel plate is a right angle. The deviation of the length and width of the steel plate is 0-5mm, and the deviation of the diagonal line is not more than 3mm.

[0024] Check the surface quality of the steel plate. If any quality defect is found on the surface of the steel plate, it should be processed in time to pass the qualification. Carry out gas cutting or shearing according to the scribed line, allow a proper a...

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Abstract

The invention relates to an explosive cladding process of metals. The process is characterized by comprising the following steps: substrate treatment, composite treatment, applying and pairing, explosive cladding, repair welding, heat treatment and post-treatment. The process can help clad 904L super austenitic stainless steel plates with general steel plates effectively so that the clad steel plates can have the required strength on the premise of owning all the advantages of the 904L super austenitic stainless steel, thus saving consumption of expensive metals. The clad steel plates have high welding quality, and can certainly remain stable in long-term use without sealing off.

Description

Technical field [0001] The invention relates to a metal explosive compounding process. Background technique [0002] Super austenitic stainless steel 904L (00Cr20Ni25Mo4.5Cu9) is a high-alloyed austenitic stainless steel with very low carbon content. It has good corrosion resistance in dilute sulfuric acid and is specially designed for environments with harsh corrosion conditions. With high chromium content and sufficient nickel content, the addition of copper makes it have strong acid resistance, especially high resistance to chloride crevice corrosion and stress corrosion cracking, and its pitting resistance is also better than that of ordinary austenite Body, good processability and weldability, can be used for pressure vessels. However, due to the high market price of 904L and the need to meet the needs of strength, it is necessary to use 904L in combination with ordinary metals. [0003] Explosive welding technology uses the high-voltage pulse load generated by the de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K20/08B23K20/24B23K101/18B23K103/04
Inventor 王典灿
Owner SICHUAN JINGLEI SCI & TECH CO LED
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