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Explosive welding method of 2507 super duplex stainless steel clad plate

A duplex stainless steel and explosive welding technology, which is applied in welding equipment, welding/welding/cutting items, non-electric welding equipment, etc., can solve the problems of high alloy element content and high price, achieve high welding quality, save usage, and guarantee The effect of long-term stable use

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

[0017] The content of alloying elements is high, and the price is relatively high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0040] Substrate blanking process:

[0041] The steel plate should have a quality certificate with clear marks; the steel plate that requires ultrasonic testing should pass the ultrasonic test as required; the steel number, specification, and material inspection number of the material are consistent with the quality tracking card.

[0042] 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.

[0043] 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 amount of grinding allowance, clean t...

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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 2507 super duplex stainless steel 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 2507 super duplex 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] The so-called duplex stainless steel is that in its solid solution structure, the ferrite phase and the austenite phase each account for half, and the ferrite generally has a minimum content of 30%. Due to the characteristics of the two-phase structure, through the correct control of the chemical composition and heat treatment process, the duplex stainless steel has the advantages of both ferritic stainless steel and austenitic stainless steel: [0003] 1. Compared with austenitic stainless steel, the advantages of duplex stainless steel are as follows: [0004] (1) The yield strength is more than double that of ordinary austenitic stainless steel, and it has sufficient plasticity and toughness required for forming. The wall thickness of storage tanks or pressure vessels made of duplex stainless steel is 30-50% less than that of commonly used austenite, whic...

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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