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Preparation method for dissimilar metal plate loose lining

A technology of dissimilar metals and plates, which is applied in the field of preparation of loose linings of dissimilar metal plates, can solve problems such as the difficulty of explosive forming, and achieve the effects of low manufacturing cost, convenient operation, and simple process steps

Inactive Publication Date: 2012-06-20
XIAN UNITED PRESSURE VESSEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And it is difficult to achieve explosive forming when the ratio of the thickness of the cladding layer to the foundation does not meet the requirements.

Method used

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  • Preparation method for dissimilar metal plate loose lining
  • Preparation method for dissimilar metal plate loose lining
  • Preparation method for dissimilar metal plate loose lining

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Loose lining clad base material: copper-nickel alloy, material is HSn62-1; thickness is 2mm;

[0033] Steel plate base material: the material is Q345R, the thickness is 6mm;

[0034] welded structure such as figure 1 ;

[0035] Step 1, using a grinding wheel to grind the weld area of ​​the base metal 2 of the steel plate, and then polishing with a thousand impeller to remove the oxide film in the weld area;

[0036] Step 2: Use a thousand impeller to polish the weld area of ​​the loose-lined clad base metal 1, and wipe the weld area within 50 mm with acetone or absolute ethanol;

[0037] Step 3. Align the weld area of ​​the loose-lined and clad-layer base material 1 processed in step 2 with the weld area of ​​the steel plate base material 2 after mechanical grinding and polishing in step 1, and use clamps to align the loose-lined and clad-layer base material Material 1 and steel plate base material 2 are fixed together;

[0038] Step 4. Place the loose-lined and cla...

Embodiment 2

[0041] This embodiment is the same as Embodiment 1, except that the thickness of the base material of the loose lining clad layer is 6 mm, and the thickness of the base material of the steel plate is 20 mm.

Embodiment 3

[0043] This embodiment is the same as Embodiment 1, except that the thickness of the base material of the loose lining clad layer is 0.8 mm, and the thickness of the base material of the steel plate is 3 mm.

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Abstract

The invention discloses a preparation method for a dissimilar metal plate loose lining, which comprises the following steps of: firstly, mechanically grinding and polishing a weld zone of steel plate base metal and removing an oxidation film; secondly, treating a weld zone of loose lining multiple-layer base metal by adopting a polishing or pickling method; thirdly, aligning the treated weld zone of the loose lining multiple-layer base metal with the mechanically-ground and polished weld zone of the steel plate base metal and fixing the loose lining multiple-layer base metal and the steel plate base metal together by adopting a positioning piece; and fourthly, placing the loose lining multiple-layer base metal and the steel plate base metal between an upper roller and a lower roller of an electric-resistance seam-welding machine and welding the loose lining multiple-layer base metal with the steel plate base metal by adopting electric-resistance seam welding. The preparation method has the advantages of simple process step, lower manufacturing cost, high degree of mechanization, convenience in operation and easiness for obtaining of high-strength welding seams; and the prepared dissimilar metal plate loose lining can be applied to the fields of petrochemical industry, pharmacy, metallurgy and electric power to manufacture nickel, copper, titanium, zirconium, tantalum, niobium and steel composite board equipment in stead of an explosive composite board under certain working conditions..

Description

technical field [0001] The invention belongs to the technical field of plate loose lining manufacturing and welding forming, and in particular relates to a preparation method of dissimilar metal plate loose lining. Background technique [0002] With the rapid development of marine engineering, petrochemical, and pharmaceutical engineering, the requirements of equipment corrosion environment make nickel, copper, titanium, zirconium, tantalum, niobium and other non-ferrous metals and their alloys widely used in equipment manufacturing. However, the high price of these non-ferrous materials leads to high equipment costs; therefore, in practical applications, non-ferrous metal plates such as nickel, copper, titanium, zirconium, tantalum, niobium and explosive clad steel plates are used to replace these non-ferrous metal plates. At the same time, as people pay more and more attention to environmental protection; my country requires that the exhaust gas of thermal power plants mus...

Claims

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Application Information

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IPC IPC(8): B23K11/06B23K11/34B23K103/18
Inventor 毛辉贺旭明叶建林董斌孙万仓赵斌袁敏哲袁晓鹏杨永福巨建辉
Owner XIAN UNITED PRESSURE VESSEL CO LTD
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