3 results about "Silicon iron" patented technology

The invention relates to a method for enhancing the surface of magnesium aluminium alloy by laser remelting, aiming at enhancement processing of the surfaces of magnesium aluminium alloy plates and magnesium aluminium alloy rods by the methods of flame spraying of alloyed powder and laser remelting. The method is characterized by cleansing the surface of the magnesium aluminium alloy, carrying out oxy-acetylene flame spraying on the alloyed powder, namely aluminium nickel alloy powder, nickel-chromium-boron-silicon-iron master alloy powder and neodymium powder, carrying out remelting and curing on the surface of the magnesium aluminium alloy on a laser processor, carrying out omnibearing radiation by laser beams according to trace curves set by computer programs so that a nickel base alloy layer is melted and cured on the surface of the magnesium aluminium alloy to form the alloy layer, therefore, the hardness of the surface of magnesium aluminium alloy is greatly improved by 8-10 times as high as that before processing, the wearing resistance and corrosion resistance of the surface of magnesium aluminium alloy are greatly improved respectively by 56% and 56.4%. The method has short process flow, easy realization, safety, stability and reliability and firm solid melting layer, is not easy to fall off and can enhance the surfaces of the magnesium aluminium alloys with various profiles.

The invention relates to the technical field of solid waste resource utilization, in particular to glass ceramics made from high silicon iron tailings, which is characterized by comprising the raw materials in parts by weight: 30-70 parts of the iron tailings, 15-40 parts of quartz, 5-20 parts of calcium carbonate, 3.5-6.5 parts of aluminum oxide, 8.5-9.5 parts of sodium carbonate, 4-5 parts of zinc oxide, 3-6 parts of barium carbonate and 1-3 parts of borax. The manufacturing method of the glass ceramics comprises the following steps: putting the glass ceramics blended materials in a kiln for melting into molten glass; allowing the molten glass to directly flow into water for water quenching to form glass particles; and paving the glass particles in a refractory die, crystallizing the paved particles in a tunnel kiln, a shuttle kiln or a chamber electric furnace, and grinding and cutting the crystallized glass ceramics to finally obtain the finished product of the glass ceramics. The invention can reduce stockpile of the tailings, alleviate environmental pollution, realize comprehensive resource utilization, improve product performances and lower production cost, thus having good social benefit and good economic benefit.

The invention relates to the field of iron ore, in particular to a high-silicon iron ore sintering pretreatment device based on the centrifugal force principle. The technical problem is to provide a high-silicon iron ore sintering pretreatment device based on the centrifugal force principle. According to the technical scheme, the high-silicon iron ore sintering pretreatment device based on the centrifugal force principle comprises a pretreatment assembly, a mixing assembly, a discharging assembly, a control screen, a first electric sliding rail, a first sliding block and a first limiting cylinder; the pretreatment assembly is connected with the mixing assembly; and the pretreatment assembly is in contact with the first limiting cylinder. When the device is used, high-silicon iron ore crushed aggregates are automatically limited and fixed into a cylindrical shape, the position where the crushed aggregates are low in content is automatically detected, fine inner blended coal is automatically and uniformly injected into a cylindrical crushed aggregate mixture through centrifugation, meanwhile, the phenomenon that the fine inner blended coal is gathered on the lower portion of the cylindrical crushed aggregate mixture due to gravity is prevented, and the inner blended coal is uniformly distributed in the high-silicon iron ore.