The graphite electrode comprises: (1) Regular power graphite electrode( RP grade Graphite Electrode) . Graphite electrode with current density less than 17a / cm2 is allowed to be used in common power electric furnaces for steelmaking, silicon smelting and yellow phosphorus smelting. (2) Oxidation resistant coating graphite electrode. A graphite electrode coated with an anti-oxidation protective layer (graphite electrode anti oxidant). The formation of both conductive and high temperature oxidation resistant protective layer can reduce the electrode consumption (19% ~ 50%), prolong the service life of the electrode (22% ~ 60%), and reduce the electric energy consumption of the electrode. The popularization and application of this technology can bring such economic and social effects as follows: 1. The unit consumption of graphite electrode is less, and the production cost is reduced to a certain extent. For example, according to the consumption of 35 graphite electrodes per week and 165 refining heats of LF refining furnace in a steel-making plant without shutdown in the whole year, 373 (153 tons) electrodes can be saved every year by using graphite electrode oxidation resistance technology, and RMB 2585700 can be saved by RMB 16900 per ton of ultra-high power electrode per year. 2 The graphite electrode consumes less electricity, saves the unit electricity consumption of steelmaking, saves the production cost, saves energy! 3. Because the graphite electrode is replaced less times, the labor amount and risk coefficient of operators are reduced, and the production efficiency is improved. 4 Graphite electrode is a high consumption and high pollution product, which has a very important social significance in the days of promoting energy conservation, emission reduction and environmental protection. This technology is still in the stage of research and development in China, and some domestic manufacturers have begun to produce it. It is widely used in Japan and other developed countries. At present, there are also companies that import the anti-oxidation protective coating in China. (3) High power graphite electrode (HP grade Graphite Electrode). Graphite electrode with current density of 18-25a / cm2 is allowed to be used in high power electric arc furnace for steelmaking. (4) Ultra high power graphite electrode( UHP grade Graphite Electrode). Graphite electrode with current density greater than 25A / cm2 is allowed. It is mainly used in ultra high power EAF.
grade 1 copper scrap not mixed with specification C11000 Electrolytic tough pitch Berry Copper (ETP) Content 99.9%. Cu%: 99.9% Element...0.005... (%) Copper..99.9... % (Min.) Lead...0.005.... % (Max.) Bismuth...0.5..% (Max.) Total impurities...0.3..% (Max.) Copper No. 2 kinds of alloy Wire cooper without lines, containing impurity, contain Copper quantity for 96% (minimum content 94%). Shall not contain excessive lead and tin change of copper wire, welding of copper, brass and bronze line, excessive oil, prohibition and nonmetal,crisp, burning line, utterly margin of fine copper and excessive yarn. Need appropriate means to remove dirt. Birch Shall consist of clean, untinned, uncoated, unalloyed copper wire and cable, not smaller than No. 16 B & S wire gauge, free of burnt wire which is brittle
Model Number: 314 321 441 430 Type: plate Application: decoration Certification: ISO Tolerance: 1% Processing Service: Bending, Welding, Decoiling, Punching, Cutting Product name: aisi 314 321 441 430 stainless steel sheet Surface: 2B, NO.4 HL available Technique: Cold Rolled Finish Material: Stainless Steel Color: Natural Color Edge: mill Edge/ slit edge Item:ISO9001 Standard Packing: Standard Export Packing Ni:min1%
grade 1 copper scrap not mixed with specification C11000 Electrolytic tough pitch Berry Copper (ETP) Content 99.9%. Cu%: 99.9% Element...0.005... (%) Copper..99.9... % (Min.) Lead...0.005.... % (Max.) Bismuth...0.5..% (Max.) Total impurities...0.3..% (Max.) Copper No. 2 kinds of alloy Wire cooper without lines, containing impurity, contain Copper quantity for 96% (minimum content 94%). Shall not contain excessive lead and tin change of copper wire, welding of copper, brass and bronze line, excessive oil, prohibition and nonmetal,crisp, burning line, utterly margin of fine copper and excessive sexual yarn. Need appropriate means to remove dirt. Birch Shall consist of clean, untinned, uncoated, unalloyed copper wire and cable, not smaller than No. 16 B & S wire gauge, free of burnt wire which is brittle
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Low temperature alloy casting Category Titanium alloy casting Low temperature alloy casting can be used as an important material for the low-temperature structure of hydrogen-oxygen engines. Common grades are TC4 etc. Product Description Low temperature alloy casting can show stronger mechanical properties at low temperature.At present, it has been used in the field of liquid rocket engines, mainly as structural materials such as hydrogen storage tanks for hydrogen-oxygen engines, hydrogen pump impellers, etc., which greatly improves the comprehensive performance of liquid rocket engines. Low-temperature titanium alloys refer to titanium alloys that can work normally under low temperature conditions. They are generally divided into three categories, alpha titanium alloys, beta titanium alloys and alpha-beta titanium alloys. Typical low-temperature titanium alloy products are suitable for working at 253C as a storage container for liquid fuel, and some alloys have good low-temperature plasticity and fracture toughness. The strength of low-temperature titanium alloys can be increased as the temperature decreases, and the toughness remains basically unchanged, making it easy to weld. It has high specific strength, corrosion resistance and low thermal conductivity. It can not only be used as a storage container for low-temperature objects, but also can be used as low-temperature structural parts for the aerospace industry
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