Steel-aluminum joint welding device

A welding device, steel and aluminum technology, applied in the direction of auxiliary devices, welding equipment, welding equipment, etc., can solve the problems of difficult direct welding of aluminum and steel, performance degradation of welding joints, deformation of welding joints, etc., and achieve the reduction of brittle compounds The effect of forming, reducing welding time and improving welding effect
CN110253165AInactive Publication Date: 2019-09-20ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE
5 Cites 5 Cited by

Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE
Publication Date
2019-09-20
Estimated Expiration
Not applicable ยท inactive patent

Smart Images

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

Abstract

The invention discloses a steel-aluminum joint welding device. The steel-aluminum joint welding device comprises a protective base, a heating base, conveying rollers, mounting grooves and a shell. The shell is internally provided with the mounting grooves. A feed port is arranged on one side of the sell at the mounting grooves. According to the steel-aluminum joint welding device, a thin copper plate is arranged between a steel plate and an aluminum alloy plate; the aluminum alloy plate and the steel plate make contact with a material guide tube through the thin copper plate; on the one hand, the steel plate and the thin copper plate are isolated through limiting of the thin copper plate, and the situation that the steel plate and the aluminum alloy plate make contact with each other and have a reaction in the heating process and the welding quality is affected by brittle compounds generated from the reaction is avoided; and on the other hand, the thin copper plate achieves the heat conduction effect and conducts heat generated from a heating barrel to the welding ends of the aluminum alloy plate and the steel plate through a delivery tube, a material guide tube and the thin copper plate in sequence to achieve the preheating effect on the steel plate and the aluminum alloy plate. The influence of bubbles generated from uneven heating in the welding process on the welding quality is reduced.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to the field of welding technology, in particular to a steel-aluminum joint welding device. Background technique

[0002] Steel-aluminum joints are widely used in the pipeline configuration of low-temperature liquefaction equipment, especially for liquefied natural gas equipment. The main equipment heat exchanger of low-temperature liquefaction cold box generally adopts aluminum flip-fin structure because it has a heat exchange area Large, simple in structure, small in size and low in cost, while the most widely used material of low temperature valves for the adjustment and control of piping systems is stainless steel. Connection, also because the medium in the pipeline (liquid air, liquid oxygen, liquid nitrogen, liquid argon, liquefied natural gas and other refrigerants) operates at a low temperature of more than minus 100 degrees, metal thermal expansion and contraction deformation can easily cause bolts to loosen, resulting in...

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