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Explosive welding method for solving problem that explosion points of rare and precious metallic composite plates are not in fit

A composite material plate and explosive welding technology, which is applied in the field of composite material manufacturing, can solve problems such as the non-bonding of the composite layer and the substrate, and achieve the effects of reducing energy, easy operation, and improving utilization

Inactive Publication Date: 2014-06-25
安徽弘雷金属复合材料科技有限公司
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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the current process adopts edge detonation, which cannot guarantee the quality of rare and precious metal explosion welding. Explosive welding processing method that meets the problem, and the present invention is especially applicable to the explosive processing preparation of large-area composite plates

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  • Explosive welding method for solving problem that explosion points of rare and precious metallic composite plates are not in fit
  • Explosive welding method for solving problem that explosion points of rare and precious metallic composite plates are not in fit
  • Explosive welding method for solving problem that explosion points of rare and precious metallic composite plates are not in fit

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Embodiment Construction

[0023] As shown in the figure, the foundation 1, the base layer 2, the support 3, the second cladding layer 4, the cladding layer slotting 5, the composite layer rejection area P after the first explosion, the explosive 6, the detonator 7, the first cladding layer 8, the detonation Point 9.

[0024] The method of composite explosion plate is already a conventional method in this field. Generally, the base layer is made of thicker (1-20cm) carbon steel, and the cladding layer is generally a rare and precious metal that cannot be melted and welded with the base metal, including various corrosion-resistant alloy steels, and even It is INCOLOY, Babbitt alloy, Monel alloy steel. Certainly the material of the clad plate of secondary explosion will be the same. The invention also provides a method of weakening the edge effect during the second explosion. Groove the composite layer on the non-bonded surface (such as figure 2 In the upper right corner, the position of the groove co...

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Abstract

The invention discloses an explosive welding method for solving the problem that explosion points of rare and precious metallic composite plates are not in fit. According to the explosive welding method, explosion is conducted twice for welding, explosion is conducted for the first time by using an edge explosion point, so that a composite layer with a small area is welded, an explosion composite plate with the area slightly larger than the center unfit area of explosion points used for conducting explosive welding for the second time is obtained, and the first explosion composite plate serves as the central area of an explosion point used for conducting welding for the second time; a compound layer with an area slightly larger than a base plate is selected, a base plate, with a compound layer in the center, obtained after the explosive welding is conducted for the first time is covered with the selected compound layer, and the position with the explosion composite plate in the center is taken as the explosion point used for conducting explosion for the second time; then a composite layer in an unfit area around the explosion point used for conducting explosion for the second time is removed; a composite plate obtained after explosion is conducted for the second time and the composite plate obtained after explosion is conducted for the first time are welded.

Description

technical field [0001] The invention discloses an explosive welding method for solving the non-lamination of initiation points of rare metal composite materials, which belongs to the field of composite material manufacturing. Background technique [0002] Rare and precious metal composite materials generally refer to metal composite materials with titanium, zirconium, tantalum, and niobium as cladding layers. Due to the brittle compounds formed by titanium, zirconium, tantalum, niobium and steel during welding, the volume change during the polycrystalline transformation process and the volume change caused by the difference in the linear expansion coefficient during the cooling process make the welded joint fail and cannot be achieved with the substrate. The fusion welding of metals, so the core technology in the manufacturing process of rare and precious metal composite materials is explosive welding technology, which must be successfully formed by explosion at one time. ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K20/08
CPCB23K20/08
Inventor 方雨杭逸夫夏小院张剑赵鹏飞刘东陈怡闫腾飞李超张军民
Owner 安徽弘雷金属复合材料科技有限公司
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