2020年1月5日星期日

Welding process of titanium rod and titanium tube

Non-ferrous metals such as titanium rods, titanium plates, and titanium pipes have special physical and chemical characteristics, so welding technology is different from other metals. The welding of titanium materials is a TiG welding process that effectively protects the welding area by inert argon. Before the use of argon, check the factory certificate on the bottle to verify the purity index of argon, and then check the bottle valve for leaks or malfunctions. Tungsten handle is firm and suitable for welding in various positions.
Argon gas delivery pipe; use semi-rigid plastic pipe, rubber hose and other hygroscopic materials are not suitable. It should be used exclusively when used, and should not be used in series with other pipes that transport other gases. The argon gas pipe should not be too long, so as to avoid the unstable airflow caused by the excessive pressure drop, generally it should not exceed 30m.
Welding fixtures: use austenitic stainless steel or copper tube, Karan, locking bolts and other groups to titanium plates and accessories. Should ensure a certain clamping force on the titanium plate and accessories to ensure that the axis is consistent and the gap is uniform and suitable.
Auxiliary equipment and tools: argon protective cover, sander, special file, stainless steel wire brush, etc.
Titanium welding wire: The welding wire grade is ERTi-2. The selected welding wire should meet the following requirements:
(1) The chemical composition and mechanical properties of the welding wire shall be equivalent to the base metal;
(2) If the weldment requires high plasticity, welding wire with higher purity than the base metal should be used. Before use, the wire should be re-inspected to check the factory certificate and quality certificate; the surface of the wire should be clean and free of defects such as oxidation color, cracks, peeling, scars and slag inclusions.
titanium alloy flange     titanium hexagon rod     titanium spring wire     grade 9 titanium wire 

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