Self-nano-structure diffusion welding technique for titanium alloy and stainless steel surface

A diffusion welding and self-nanometer technology, which is applied in welding equipment, metal processing equipment, surface polishing machine tools, etc., can solve the problems of inability to obtain tight welding, no intermediate layer metal, and low performance of welded joints, so as to shorten the welding time , reduce the pressure and temperature requirements, improve the effect of mechanical properties
CN101244483AInactive Publication Date: 2008-08-20CHONGQING UNIV
0 Cites 25 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHONGQING UNIV
Publication Date
2008-08-20
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a titanium alloy and stainless steel surface self-nanocrystallization diffusion welding craft; wherein, the same diameter titanium alloy and stainless steel rod are selected; the surface self-nanocrystallization of the end face of the welding terminal is processed; the constant temperature and constant pressure diffusion welding or the impact pressurizing diffusion welding are processed. The titanium alloy and stainless steel surface self-nanocrystallization diffusion welding craft has the advantages of raising the diffusion coefficient of the titanium alloy and stainless steel in the process of diffusion welding, shortening the welding time, raising the welding efficiency, reducing the thickness of intermetallic compounds layer, refining the joint crystalline grain, and raising the mechanical property of the diffusion welding joint of titanium alloy and stainless steel.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to welding technology, in particular, relates to a technology of diffusion welding of titanium alloy and stainless steel after surface self-nanometerization. Background technique

[0002] Titanium alloy has the advantages of low density, high specific strength, excellent corrosion resistance, high temperature strength and low temperature toughness, etc. It has been widely used in aerospace, petrochemical, nuclear power and other fields. However, titanium has low elastic modulus, poor high-temperature creep performance, and is expensive, while stainless steel is cheap and has good thermoelectric and mechanical properties. Therefore, titanium alloys are often used in combination with stainless steel to give full play to both. The complementary advantages of two metal materials in performance and economy. However, there are great differences in physical and chemical properties between titanium alloy and stainless steel. If the weldi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More