Welding aluminum dross recycling material, high strength and light weight. The main welding process is TIG welding TIG, GMAW MIG, FSW FSW, resistance spot welding. Aluminum welding protection measures 1, before welding chemical + mechanically remove the oxide dross scrap prices groove and the peripheral portion of the workpiece and the wire surface, the order is chemical cleaning, mechanical grinding; 2, the welding process to be used Approved protective gas protection; 3, when gas welding using flux, the welding process used constantly prick wire bath surface oxide film. With the right cast reasonable method, it is one of the important conditions to obtain high-quality castings. Practice too, pay attention to the following matters, to prevent, reduce casting defects is very effective. (A) should be carefully checked before pouring the melt temperature furnace, ladle drying capacity level and surface coating layer, the other is in compliance with either preparation tool. Metal pouring cup before pouring in within 3 - 5 minutes in good place on the sand, then ladle pregnant temperatures no higher than 150 degrees, placing premature or excessive temperature, stifling a lot of gas in the runner, in there is a danger of explosion when pouring. (B) can not be in the "awful draft" pouring occasions, and strongly oxidizing melt, burn, the casting defects such as oxidation inclusions. (Iii) acquiring the melt from the crucible, should be used to underwrite and push oxide dross acquisition melt surface or flux layer, slowly ladle immersed in the melt, a wide mouth with a ladle scoop Take melt dross, then smoothly lifted ladle. (D) when the end of the package do not palm flat, the pace should be steady, should not be raised too high ladle, ladle the molten metal level must remain stable, not moving rope. (E) is about to cast, should Grilled net ladle slag, in order to avoid casting will slag, scale, etc. into the mold. (Vi) in the casting, the melt flow remains stable, can not be interrupted, not straight into the arms of the bottom outlet opening. Gate pregnant should be filled from beginning to end, the liquid can not flip the casting speed to be controlled properly. Typically, the degree to slightly slower start pouring, the melt filling smooth and slightly faster, and casting speed remained unchanged. (Vii) in the casting process, a ladle from the tip and on the gate as close as possible to not more than 50 mm is limited in order to avoid excessive oxidation of the melt. (VIII) with blockage gate arms, clogging can not allocate too early, after the melt filled the gate arms, then slowly obliquely set aside, in order to avoid eddy currents when the melt injection gate. (IX) of 60 mm below the melt from the bottom of the crucible should not be pouring castings. Waste zinc scrap price, dross, Shengxin recycling scrap metal recycling scrap metal from the Linyi City Shengxin Limited. Linyi City Shengxin scrap metal recycling Ltd. (shengxin.tz1288.com) strong, credible, in Linyi, Shandong scrap metal industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Shengxin scrap metal recycling into the brilliant and you work for a better future!