AWS A5.16 Titanium Welding Wire
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AWS A5.16 ERTI-1,ERTI-2 ERTI-5 ERTI-7 ERTI-12 titanium welding wire price per kg
Titanium welding wire has excellent welding process performance, beautiful weld formation, and its welded metals have excellent comprehensive mechanical properties.
Titanium wire specifications A. Titanium wire specifications: φ0.8-φ6.0mm B. Spectacle titanium wire specification: φ1.0-φ6.0mm special titanium wire C. Titanium wire specification: φ0.2-φ8.0mm special for hanging tool
Grade TA0, TA1, TA2, TA3, TA4, TA5, TA6, TA7, TA9, TA10, TC1, TC2, TC3, TC4, TC6, TC11, GR1, GR2, GR3, GR5 Ti6AL4V ELI, Ti6AL7Nb, Ti13Nb13Zr, Ti1533
standard
surface use Titanium wire carburizing surface treatment The solubility of carbon in titanium is small, at 850X: a total of 0.3%, and it drops to about 0.1% B at 600C. Due to the low solubility of carbon in titanium, basically only through the titanium carbide layer and its lower fork Deposit a layer to achieve the purpose of surface hardening. Carburization must be carried out under the condition of deoxygenation, because the powder suitable for the common carburization of steel faces the surface of carbon monoxide or oxygen-containing carbon monoxide and the hardness of the surface layer reaches 2700MPa and 8500MPa, and it is easy to peel off. In contrast, under deoxidation or decarburization conditions, a thin layer of titanium carbide may form when carburizing in charcoal. The hardness of this layer is 32OUOMPa, which is consistent with the hardness of titanium carbide. The depth of the carburized layer is roughly greater than the depth of the nitrided layer when nitriding with nitrogen under the same conditions. Under the condition of oxygen enrichment, it must be considered that the absorption of oxygen affects the depth of hardening. Only under a very thin layer thickness, the carburizing of carbon powder in vacuum or argon-methane atmosphere can form sufficient adhesion strength. Compared with this, the use of gas carburizing agent may form particularly hard and good adhesion Hardened layer of titanium carbide. At the same time, the hardening spread formed under the condition of temperature between 950T: and 10201: is between 50fim and. As the thickness of the layer increases, the titanium carbide layer becomes relatively brittle and tends to peel off The dosage additive is gas carburized in an inert gas. When using methane carburization with propane additives, a lower surface hardness is formed. When the adhesive strength reaches 90 OkPa when using gas carburized propane, although the thickness of the hardened layer measured is very thin, it has better wear resistance. Hydrogen is absorbed under the condition of gas carburizing agent, but it has to be removed again during vacuum annealing.
Precautions for using titanium welding wire: (1) Construction workers and welders should wear clean white gauze gloves (no cotton gloves are allowed). (2) It is strictly forbidden to touch and touch iron objects by hand in the treated welding area. (3) Welding work should be performed indoors as much as possible, and the ambient wind speed should be ≤0.5m / s to avoid being affected by the wind. (4) When welding, short arc welding should be used as much as possible, with a small welding heat input, and the angle between the nozzle and the weldment should be 70-80 degrees. (5) When the butt pipe is positioned and welded, its butt gap is generally about 0.5mm. (6) Each welding seam should be completed as much as possible. The welding seams must be connected. Before welding, the joints should be cleaned. The length of the welding meat overlap is 10-15mm. (7) When welding, the welding torch should not swing left and right, and the melting end of the welding wire must not move out of the gas protection area. (8) Gas should be supplied in advance when welding arc initiation. Welding torch cannot be lifted immediately when arc is extinguished. Gas supply should be delayed until the temperature drops below 250 ℃. (9) The distance between the gas shield and the welding torch should be short, and the gap in contact with the pipe wall should be small. When performing butt welding of pipes, in order to meet the requirements of single-sided welding and double-sided forming, the welding is performed in two times: one for back-sealing welding (without filler materials when back-sealing), and the other for forming welding. In multi-layer welding, the previous bead must be completely cooled before the next bead is welded. (10) Welding must be completely cleaned of surface impurities such as
oil, rust, and moisture. added to enhance the protection effect.
Production Process of titanium wire: Titanium sponge→compacting electrodes→melting→forging→bar billets→hot rolling→cold draw→titanium wires
Surface quality: high precision, good finish, no oxidation color, no cracks, peeling, thorns, marks and inclusions. Minor local scratches, abrasions, spots and pits that do not exceed the allowable deviation of the wire diameter are allowed.
Detailed pictures:
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Product Tags: thin titanium wire pure titanium wire |
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