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Technique for producing composite material

A composite material and process technology, applied in the field of composite material preparation, can solve the problems of insufficient strength of connectors, variable strength properties, difficult process stability, etc., and achieve the effect of satisfying relative magnetic permeability

Inactive Publication Date: 2012-05-23
PLANSEE SE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] Soldered connections are deficient in corrosion resistance and strength, and the strength of connections connected by diffusion welding is not sufficient in many cases
In addition, it is difficult to establish the required process stability
Moreover, the strength performance of this connection is variable and very low
Welding of Ni joints between copper-based materials and steel also has its disadvantages, as confirmed by thermal load tests

Method used

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  • Technique for producing composite material
  • Technique for producing composite material

Examples

Experimental program
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Effect test

Embodiment

[0028] A tubular composite material 1 was fabricated using Cu-Cr-Zr / 316L (austenitic steel). This composite material is used as a heat exchanger in a fusion reactor splitter.

[0029] To achieve this purpose, the plate made of Cu-Cr-Zr in the solution annealed and quenched state is connected with the plate made of 316L by explosive welding. The surface area of ​​each of the two plates is 500×500mm 2 , The respective thickness is 15mm. For explosive welding, Cu-Cr-Zr sheets are used as "ingot shells". For this purpose, an explosive charge is placed on top of the Cu-Cr-Zr sheet and ignited, resulting in the connection zone 7 .

[0030] After welding, the composite panels are ultrasonically inspected. Connected and unconnected regions can be localized by this approach. A core-shaped intermediate piece 4 is then cut from the joined area of ​​the sheet by means of water jet cutting, wherein the axis of the core is perpendicular to the explosion-welded joining surface 7 . The ...

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Abstract

The invention relates to a process for making material composite, the material composite has a part made from steel or a titanium-based material and a part made from a copper-based or aluminum-based material. The parts of the material composite are joined by way of an intermediate piece. The intermediate piece likewise comprises a region made from steel or a titanium-based material and a region made from a copper-based or aluminum-based material, which are connected by explosion welding. The parts of the material composite are connected to the regions of the intermediate piece which are in each case of the same type by means of a fusion or diffusion welding process.

Description

technical field [0001] The invention relates to a process for preparing a composite material comprising a part made of a steel or titanium based material and a part made of a copper or aluminum based material. Background technique [0002] Copper-based or aluminum-based materials cannot be directly connected to steel or titanium-based materials by fusion welding. In the following the term "base material" is to be understood in each case as an alloy having a base metal content of more than 50% by weight. The term steel includes all steel-based materials. [0003] An important application of composite materials comprising parts made of steel or titanium based materials and parts made of copper or aluminum based materials is cooling elements. Copper and aluminum are used for their high thermal conductivity. In order to obtain sufficient structural strength, the copper or aluminum sections are joined to a structural material, usually steel or titanium. [0004] For example, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23K28/02G21B1/13F16L9/22F16L9/02F28F1/00B23K101/06
CPCB23K20/227B23K20/085B23K2203/18B23K2203/22B23K20/233B23K2103/08B23K2103/10B23K2103/12B23K2103/14B23K2103/18B23K2103/20B23K2103/22Y10T428/12493Y10T29/49826Y10T29/49968Y10T428/12028Y10T29/49806Y02E30/10B23K31/00B23K20/08
Inventor B·舍德勒TH·胡贝尔TH·弗里德里希K·沙伊贝尔D·舍德勒A·察贝尼格H-D·弗里德尔S·迈尔N·韦尔莱
Owner PLANSEE SE
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