1.2mm-3.2mm TIG 1.2mm-3.2mm TIG Welding Wire technology and welding essentials
The 1.2mm-3.2mm TIG Welding Wire industry is used in a variety of fields. The 1.2mm-3.2mm TIG Welding Wire used for gas welding is a metal wire without a coating. Its composition is basically the same as that of a workpiece, which in principle requires that the welding seam and the workpiece reach equal strength.
Welding alloy steel, cast iron and non-ferrous metals, the molten pool prone to high melting point stable oxides, such as Cr2O3, SiO2 and Al2O3, the weld slag. Therefore, when welding, the use of appropriate flux, with these oxides can form a low melting point slag, to facilitate the float pool. Because the metal oxides are mostly alkaline, so generally use acidic flux, such as borax, boric acid and so on. When cast iron, there are often more SiO2 appears, so usually will use alkaline flux, such as sodium carbonate and potassium carbonate. Use, usually with a wire dipped in the end into the pool.
Welding 1.2mm-3.2mm TIG 1.2mm-3.2mm TIG Welding Wire process requires a wide range of learning, is conducive to the late use.
Welding 1.2mm-3.2mm TIG 1.2mm-3.2mm TIG Welding Wire process there are many ways you need to learn, wire manufacturers today for everyone is surfacing, surfacing is the surface or edge of the workpiece for welding a layer of wear-resistant, corrosion-resistant, heat-resistant performance of the metal layer The welding process. Surfacing to improve the service life of parts, the rational use of materials, improve product performance, reduce costs have significant economic benefits. Different workpieces and welding electrodes to use a different surfacing process, in order to obtain satisfactory surfacing effect. Surfacing is the most commonly encountered problems cracking, to prevent cracking of the main methods are: preheating before welding, control the interlayer temperature, 1.2mm-3.2mm TIG Welding Wire slow cooling after welding. After welding stress relief heat treatment. Avoid multi-layer surfacing, the use of low-hydrogen surfacing electrode. When necessary, surfacing layer between the surfacing layer and base metal.
At present, in the field of industrial production, the technical requirements of the workers for surfacing and welding are very high. In practice, not only the cracking, but also the hardness, strength and surface smoothness of the workpiece after surfacing are to meet the requirements of the country. This requires companies to have a good surfacing equipment, so as to ensure maximum quality after welding.
There are many types of 1.2mm-3.2mm TIG Welding Wire, the most important is the quality of 1.2mm-3.2mm TIG Welding Wire, Shandong wire manufacturers to ensure the quality of the wire, paying particular attention to the application of wire, wire as a filler metal is constantly fed to the molten pool, wire feeding process should note;
(1) wire feeding should not use the left hand to pinch the distal end of the wire, moving only by the left arm to feed, this method when the wire feed hand jitter.
(2) When filling the 1.2mm-3.2mm TIG Welding Wire, the tip of the 1.2mm-3.2mm TIG Welding Wire should not be contacted with the tungsten. Otherwise, the 1.2mm-3.2mm TIG Welding Wire will be polluted by the tungsten, and the tungsten will be formed after melting into the melting pool.
(3) Welding, the 1.2mm-3.2mm TIG Welding Wire can not be separated from the argon protection zone, in order to avoid hot wire tip oxidation, and reduce the quality of the weld.
(4) continuous wire feeding, wire feeding speed should be uniform, straight, can not be stirred in the protective layer to prevent air into the welding zone.