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Explosive welding method for C-22 nickel-based alloy composite steel plates

A technology of nickel-based alloy and clad steel plate, applied in welding equipment, welding/welding/cutting articles, metal processing, etc., can solve the problems of high market price, achieve the effect of saving usage, high welding quality, and ensuring long-term stable use

Inactive Publication Date: 2009-10-28
SICHUAN JINGLEI SCI & TECH CO LED
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, due to the high market price of C-22 and the need to meet the needs of strength, it is necessary to use C-22 in combination with ordinary metals.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0022] Substrate blanking process:

[0023] The steel plate should have a quality certificate with clear marks; steel plates that require ultrasonic testing should pass the ultrasonic test as required; the steel grade, specification, and material inspection number of the material are consistent with the quality tracking card.

[0024] 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.

[0025] 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 the bu...

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Abstract

The invention relates to a metal explosive cladding process, which is characterized by comprising the following steps: treatment for substrates, treatment for composite materials, brushing and matching, explosive cladding, repair welding, heat treatment and post-treatment. The method provided by the invention has the advantage that the method can effectively compound C-22 nickel-based alloy plates and common steel plates, thereby ensuring that composite steel plates have needed strength on the premise of having all the advantages of C-22 nickel-based alloy, so that the consumption of expensive metals is saved. Meanwhile, products provided by the method have high welding quality to ensure long-term stable use with no fall-off.

Description

Technical field [0001] The invention relates to a metal explosive compounding process. Background technique [0002] The main components of the C-22 alloy are: 56Ni-22Cr-13Mo-3W-3Fe, and alloy elements such as chromium, molybdenum and tungsten have been added to the critical state. Among them, molybdenum and tungsten are used to enhance the uniform corrosion resistance of the alloy in reducing environments (such as hydrochloric acid and dilute sulfuric acid). Elemental chromium is beneficial for corrosion resistance in oxidizing environments. In oxidizing medium, the uniform corrosion resistance is better than C-4, C-276 and 625 alloys, and the local corrosion resistance and stress corrosion resistance are also excellent. In summary, C-22 achieves better corrosion resistance than most nickel-based alloys in both oxidizing and reducing environments. In addition, C-22 has good thermal stability. As a result, the corrosion resistance of the welding heat-affected zone is bet...

Claims

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Application Information

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