Titanium material welding argon protection dragging cover and protecting method for titanium material welding joint
A technology of argon gas shielding and titanium material, which is used in welding protection devices, devices for supplying/removing shielding gas, welding equipment, etc., can solve the problems of time-consuming and labor-intensive, unstable weld quality, etc. quality, the effect of meeting the welding requirements
Pending Publication Date: 2018-12-07
LANZHOU LS ENERGY EQUIP ENG RES INST
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Problems solved by technology
[0003] The purpose of the present invention is to provide a titanium material welding argon protection drag cover and a protection method for the titanium material welding seam, so as to solve the problem of unstable weld seam quality, time-consuming and labor-intensive problems in the titanium material welding process
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[0019] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0020] Such as figure 1 , figure 2 Shown 1, a kind of titanium welding argon protection drag cover, it comprises the pyramid-shaped cover body 4 that bottom end is open, and the top of cover body 4 is provided with argon gas inlet pipe 2, and the bottom of inlet pipe 2 is provided with bottom The open distributor 3 has several rows of overflow holes 7 evenly distributed on the upper surface of the distributor 3, and a wire mesh layer 5 is arranged under the distributor 3; The lower part of the base is a conical base matching the shape of the front end of the welding torch, and a nozzle 6 is arranged on the bottom surface of the base.
[0021] The diameter of the overflow hole 7 is 0.8-1.2mm, and the distance between two adjacent holes is 3.5-6mm.
[0022] The cover body 4, the air intake pipe 2, the distributor 3, the screen layer 5 and the nozzle 6 are a...
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Abstract
The invention discloses a titanium material welding argon protection dragging cover and a protecting method for a titanium material welding joint. The titanium material welding argon protection dragging cover comprises a cover body of which the bottom end is open, an argon inlet pipe is arranged at the top end of the cover body, a distributor of which the bottom is open is arranged at the bottom of the argon inlet pipe, multiple rows of overflow holes are evenly distributed on the upper surface of the distributor, and a screen mesh layer is arranged under the distributor; and a welding gun fixture is arranged on the front side wall of the cover body, and a nozzle is arranged on the bottom face of a welding gun fixture base. The protection dragging cover is adopted in the protecting methodfor the titanium material welding joint, argon is distributed two times through the overflow holes formed in the upper surface of the distributor and the screen mesh layer, turbulent flow is formed and evenly distributed in a welding zone, the welding joint is effectively protected against oxidization, the surface color of most welded products is silvery white, the surface color of few welded products is golden yellow, the welding quality of the products is improved, and the welding requirements are met. According to the titanium material welding argon protection dragging cover and the protecting method for the titanium material welding joint, the structure is simple, design is exquisite, welding joint welding and protecting can be achieved by one operator, and time and labor are saved.
Description
technical field [0001] The invention relates to the technical field of welding equipment, in particular to a titanium material welding argon protection drag cover and a method for protecting a titanium material welding seam. Background technique [0002] Due to its outstanding advantages such as low density, high strength, low thermal conductivity, and strong corrosion resistance, titanium metal is used in aerospace, petrochemical, electric power, seawater desalination and other fields. Titanium and titanium alloys are very active non-ferrous metals, and their shape will change as the temperature rises. Titanium starts to absorb hydrogen at about 250°C and produces TiH 2 ; Start to absorb oxygen from 400°C to form TiO, which significantly reduces the plasticity of the material; start to absorb nitrogen from 600°C to form brittle and hard TiN. After these gases are absorbed, they directly affect the welding quality of titanium materials. Titanium and titanium metal are expe...
Claims
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IPC IPC(8): B23K9/32B23K9/16
CPCB23K9/16B23K9/321B23K9/325
Inventor 王玉虎李朴毕晓敏罗文翠
Owner LANZHOU LS ENERGY EQUIP ENG RES INST