Vacuum brazing method for connecting Ti-6Al-4V and CuZrCr

A technology of ti-6al-4v, brazing method, applied in the direction of welding equipment, welding equipment, non-electric welding equipment, etc., can solve the problems of difficult connection, large difference in physical properties, etc., and achieve convenient use, ensure contact, and simple structure Effect

Active Publication Date: 2022-04-01
合肥聚能电物理高技术开发有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The connection between Ti-6Al-4V and CuZrCr is a connection between dissimilar materials, and there are many difficulties in the connection of the two due to the large difference in the physical properties of their materials.

Method used

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  • Vacuum brazing method for connecting Ti-6Al-4V and CuZrCr

Examples

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Effect test

Embodiment 1

[0038] Please refer to figure 1 This embodiment provides a vacuum brazing method for Ti-6Al-4V and CuzrCr connection:

[0039] Solder selection: The solder 6 in this example is selected from the group consisting of AG68Cu28Ti4 foil solder, and the melting temperature is 800 to 820 ° C;

[0040] In this example, 0.5 ~ 1 mm thick Tu1 oxygen-free copper 7 is used as a heterogeneous transition metal of Ti-6Al-4V and CuZRCR;

[0041] The Ti-6Al-4V matrix material 5 is pretreated, including the sequential removal, rinsing, and dry dry, specifically comprising immersing the Ti-6Al-4V matrix material 5 into 90 ° C 40 g / L, carbonated Sodium 30g / L, trisodium phosphate 30g / L, sodium silicate 5g / L and water mixed ratio, after 5 minutes, Ti-6Al-4V matrix material 5 is 60 ml / L according to nitric acid 50 ml / L, hydrofluoric acid 5 ml / L and water mixed ratio of water were soaked in 5 minutes, rinsed with flowing hot water, and dried with dry oil-free compressed air;

[0042] The TU1...

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Abstract

The invention relates to the technical field of welding, and discloses a vacuum brazing method for connection of Ti-6Al-4V and CuZrCr, Tu1 oxygen-free copper is adopted as transition metal for connection of the Ti-6Al-4V and the CuZrCr, the Ti-6Al-4V, the Tu1 oxygen-free copper and CuZrC are pretreated firstly, then the Ti-6Al-4V, brazing filler metal, the Tu1 oxygen-free copper, the brazing filler metal and the CuZrCr are sequentially placed in a brazing clamp to be assembled to form a brazing part, the brazing part is integrally placed in a vacuum brazing furnace, and the vacuum brazing method for connection of the Ti-6Al-4V and the CuZrCr is completed. And the furnace is opened after the vacuum brazing step is executed. The blank in the field of the Ti-6Al-4V and CuZrCr vacuum brazing process is filled, the problem that the physical performance difference of dissimilar connection of the Ti-6Al-4V and the CuZrCr is large can be solved, reliable connection of the Ti-6Al-4V and the CuZrCr is achieved, and wide application value is achieved.

Description

Technical field [0001] The present invention relates to the field of welding technologies, and more particularly to a vacuum brazing method for Ti-6Al-4V and CuZRCR. Background technique [0002] The superconducting feeder system is one of the key components of nuclear gathering, which is used to connect the room temperature and low temperature superconductance system to achieve the transmission of superconducting system excitation current. The use of the superconducting wire cooling system is extreme condition, and the temperature of the cooling pipeline system currently is 4.2k and 77K, respectively. In order to accurately collect temperature parameters on the cooling line, there is a need for a large amount of temperature measurement on the cooling pipe of 4.2k and 77K. The general temperature measuring position is welded by two materials. The difference between the two materials is large. During the vacuum brazing cooling process, it is easy to generate shrinkage stress, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K1/008B23K20/22B23K20/24
CPCY02E30/30
Inventor 沈旭李波陶嘉周能涛赵东东范小松
Owner 合肥聚能电物理高技术开发有限公司
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