1370 Aluminum Aluminum Aluminum density is low in general, but the intensity is relatively high, close to or more than high quality steel, plastic, can be processed into a variety of profiles, with excellent electrical conductivity, thermal conductivity and corrosion resistance, widely used in industry, usage after the steel. Aluminum divided into two categories: cast aluminum alloy, in the case of using cast; deformation of aluminum alloy, can withstand pressure processing, mechanical properties than cast. Processed into various forms, specifications of aluminum material. Mainly for the manufacture of aviation equipment, daily necessities, building doors and windows. Aluminum alloy processing methods can be divided into deformation of aluminum and cast aluminum. Deformation is divided into non-heat strengthened aluminum alloy and heat treatment strengthened aluminum alloy. Enhanced heat treatment can not by heat treatment to improve mechanical properties, can only be achieved by cold deformation strengthening, which includes high purity aluminum, industrial high purity aluminum, industrial aluminum and rust-proof aluminum. Heat treatable aluminum alloy can be used to improve the mechanical properties by quenching and aging heat treatment, it can be divided into hard aluminum, wrought aluminum, super-hard aluminum and special aluminum alloy. Aluminum heat treatment can be used to obtain good mechanical properties, physical properties and corrosion resistance. Cast aluminum alloy can be classified according to chemical composition of Al-Si alloys, aluminum-copper alloy, aluminum-magnesium alloy and aluminum-zinc alloy. [Product] aluminum aluminum smelting products and pressure processed sub-categories, the former chemical composition Al, said the latter represented by pinyin LG (aluminum, industrial use). [Pressure] aluminum aluminum processing pressure processing products into rust-proof (LF), hard (LY), forging (LD), super-hard (LC), coated (LB), special (LT) and brazing ( LQ) seven categories. State common aluminum alloy material is annealed (M Annealing), sclerosis (Y), hot-rolled (R), three. [Aluminum] aluminum and aluminum alloys processed into a certain shape of material referred to aluminum, including sheet, strip, foil, pipe, bar, wire, profiles and the like. [Bug fix] aluminum aluminum in the production process, prone to shrinkage, trachoma, pores and slag and other casting defects. How to repair aluminum alloy casting porosity and other defects it? If welding, TIG welding equipment to repair, since the heat capacity, prone to side effects such as thermal deformation, can not meet the welding requirements. Cold welding repair machine is to use a high-frequency spark spark, no heat welding to repair casting defects principle. Due to cold welding heat affected zone will not cause deformation of the substrate annealing, no cracks, no hard spots, hardening. And high weld strength, fill material and the substrate simultaneously re-solidification after melting, combined with a solid, can be grinding, milling, filing and other processing, compact does not fall off. Cold welding repair machine is the ideal way to repair aluminum porosity, trachoma and other small defects. Chemical properties of the chemical composition of: silicon (Si): 0.10 Iron (Fe): 0.25 Copper (Cu): 0.02 Manganese (Mn): 0.01 Magnesium (Mg): 0.02 Chromium (Cr): 0.01 Zinc (Zn): 0.04 aluminum (Al ): 99.70 Other ingredients: calcium (Ca): 0.03 vanadium (V) + titanium (Ti): 0.02 boron (B): 0.02 Other: Single: 0.02 Total: 0.01