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What are sintered Powder Metallurgy Gears
Surface-hardened, sintered powder metal gears are increasingly used in power transmissions to reduce the cost of gear production. ... Power transmission gears are frequently employed under conditions of high speed and high load, and tooth surfaces are in contact with each other under a sliding-rolling contact condition.
Powder metallurgy injection molding was born in California, USA in 1973, referred to as MIM. It is a new type of powder metallurgy molding technology invented by combining plastic injection molding technology with the field of powder metallurgy.Powder metallurgy is close to the injection molding process with powder metallurgy technology, first the solid powder and organic binder mixing together, through 150 degrees high temperature heating plasticizing, injection mold cavity with injection molding equipment, again is solidified, then use the method of thermal decomposition of binder removal from the billet, the last as powder metallurgy, precision by sintering parts.
Powder metallurgy compaction molding is to use powder to fill the mold by gravity, through the machine pressure extrusion molding.In practical industrial applications is the most widely used one, cold closed steel die pressing, cold isostatic pressure, hot isostatic pressure, temperature pressure are pressing molding.However, due to the only up and down two-way pressing, some complex structural parts can not be produced, or can only be made into blank. The use of powder metal technology bypasses the need to produce the resulting products by metal removal processes, thereby reducing manufacturing costs.
