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Method for composite treatment of dissimilar metal sheet by located irradiation and diffusion way

A dissimilar metal and composite treatment technology, which is applied in metal processing equipment, non-electric welding equipment, welding equipment, etc., can solve problems such as poor bonding in the detonator area, deformation of composite plates, and multi-layer bulging, etc., to achieve easy control, good operation, and combination good quality effect

Inactive Publication Date: 2010-06-02
张忠林
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The explosion will also cause deformation of the composite board, and uneven exhaust will also cause defects such as multi-layer bulging, edge cracking, and poor bonding of the detonator area.

Method used

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  • Method for composite treatment of dissimilar metal sheet by located irradiation and diffusion way
  • Method for composite treatment of dissimilar metal sheet by located irradiation and diffusion way
  • Method for composite treatment of dissimilar metal sheet by located irradiation and diffusion way

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment 1: as figure 1 , 2 , 3, 4, and 5 show:

[0034] a. Set up a radiation diffusion connection layer between the base layer 3 (selecting carbon steel) made of dissimilar metals, the upper cladding layer 1 (selecting pure titanium material) and the lower cladding layer 5 (selecting pure titanium material) and perform mutual positioning treatment, specifically The method is to place an upper lining layer 7 between the base layer 3 and the upper cladding layer 1, and place a lower lining layer 6 between the base layer 3 and the lower cladding layer 5. The upper lining layer 7 and the lower lining layer 6 are made of thin copper plate materials. Diffusion connection layer. On the upper cladding 1, the upper cladding screw holes 9 are processed, on the lower cladding 5, the lower cladding screw holes 10, 2 are upper positioning nails of copper material, and the positioning holes 8 are processed on the base layer 3. One end of the upper positioning nail 2 has thread...

Embodiment 2

[0042] Embodiment 2: as Image 6 , 7, 8, and 9: the difference from embodiment 1 is that the radiation diffusion connection layer is a cross surfacing layer welded in the middle groove 11 on the base layer 3 and surfacing on the base layer 3, and is in contact with the surfacing layer The welding surfacing layer on the upper cladding layer 1 is in contact with, wherein the material of the surfacing layer is copper. The positioning process is to process a convex edge 13 on the periphery of the upper layer 1, and process a concave edge 14 matching the convex edge 13 on the periphery of the base layer 3. The convex edge 13 and the concave edge 14 can cooperate with each other for mutual positioning. prevent mutual misalignment. Others are the same as in Example 1.

Embodiment 3

[0043] Embodiment 3: as Figure 10 , 11 , shown in 12 and 13: the difference shown in embodiment 2 is that a transparent middle through hole 17 and a cross-through groove 16 communicated with the hole are processed on the upper cladding layer 1, and on the periphery of the upper cladding layer 1 The surfacing welding has a surfacing welding edge 15, and the surfacing welding edge 15 coincides with the concave edge around the base layer 3. The radiation diffusion connection layer is formed by pressing the surfacing solder and the surfacing edge 15 welded in the middle through hole 17 and the cross-through groove 16, and the others are the same as in the second embodiment.

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Abstract

The invention relates to a method for composite treatment of dissimilar metal sheet by located irradiation and diffusion way, comprising the steps of: arranging an irradiation and diffusion connecting layer between a base layer and an upper composite layer of the dissimilar metal sheet, and carrying out mutual location treatment; heating and leading all parts to be even in temperature and well burnt, and ensuring the lower limit of the heating temperature to be 10 degrees lower than that of the material melting point of the irradiation and diffusion connecting layer; pressurizing to 10-30MPa, and maintaining the pressure for 1-10min; keeping the temperature and slowly cooling; and controlling the material melting point of the irradiation and diffusion connecting layer to be synchronously lower than that of the base layer and the composite layer, and leading the irradiation and diffusion connecting layer to have fusibility with the base layer and the upper composite layer. Compared with the prior art, the method has simple technique and good operation, generates no noise, thermal radiation and impact force in the compounding process, discharges no greenhouse gas, ensures the composite surface to have the texture being the same as that of base material, and has good combination quality, no damage for the surface of material and good mechanical properties of the combining surface. Furthermore, the method has the advantages of simple equipment, strong universality, simple and convenient operation and energy conservation.

Description

technical field [0001] The invention relates to a method for composite processing of metal sheets, in particular to a method for composite processing of dissimilar metal sheets by means of positioning radiation diffusion. Background technique [0002] At present, in industrial production, it is often necessary to combine metal sheets of different materials into an integrated structure, such as the tube sheet in a heat exchanger. erosion and corrosion. Therefore, the selection of tube sheet material is very critical. Generally, the properties of the tube side and the shell side of the heat exchanger used in the petrochemical industry are very different. The tube side is a process medium with high temperature, high pressure and high corrosion, and the shell side is usually cooling water (mostly sea water); sometimes the tube side and the shell side are special. Aggressive process media. Therefore, special materials such as navy copper, iron nickel copper, duplex stainless s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K20/16B23K20/22B23K20/24
Inventor 张忠林
Owner 张忠林
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