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Explosive welding method of NO8825 nickel-based alloy clad steel plate

A NO8825, nickel-based alloy technology, applied in welding equipment, welding/welding/cutting items, metal processing, etc., can solve the problem of high market price, achieve saving usage, long-term stable use without falling off, and high welding quality. 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 NO8825 and the need to meet the needs of strength, it is necessary to combine NO8825 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 NO8825 nickel-based alloy 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 NO8825 nickel-based alloys, 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] NO8825 (0Cr21Ni42Mo3Cu2Ti) metal nickel-iron-chromium nickel-based corrosion-resistant alloy, and add a small amount of metal molybdenum and copper. In oxidizing acid and reducing acid, this alloy has good corrosion resistance, stress corrosion cracking resistance, pitting corrosion resistance and crevice corrosion resistance; it also has excellent corrosion resistance to sulfuric acid and phosphoric acid. This alloy has good cold and hot workability, easy cold forming and welding. Typical application range: heating pipes, containers, and chains for sulfuric acid pickling plants; seawater cooling heat exchangers, marine product piping systems, acid gas environment piping; heat exchangers, evaporators, washing, and dipping pipes in phosphoric acid production etc.; Air heat exchangers in petroleum refining. However, due to the high market price of NO8825 and ...

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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