Iron and iron alloy powder metallurgy

In the production of powder metallurgy, the amount of iron powder is much bigger than the metal powder. 60% ~ 70% of iron powder used in the manufacture of powder metallurgy parts. Main types of iron base material, iron, nickel alloy, iron, copper alloy and iron alloy and steel. Powder metallurgy iron-based structure parts with high precision, small surface roughness values, without or with little machining, saving material, high productivity, porous, can be soaked lubricating oil, anti-friction, vibration damping and noise elimination, etc. Widely used in the manufacture of mechanical parts, such as the adjustment of the machine tool on the gasket, the adjusting ring, end cover, eccentric wheel, slider, base, motor of oil pump gear, piston ring, the tractor transmission gear, piston rings, as well as the joint, spacer, oil pump rotor, block set, roller, etc. The grades of the powder metallurgy iron base structure materials used 'powder', 'iron', 'compose' first 'FTG' three characters of Chinese pinyin word, plus combined carbon content and master the scores of and symbols and its percentage content of alloy elements, additional symbols and content of alloy elements of percentage and tensile strength. Such as FTG60 - 20, said combining carbon 0. 4% ~ 0. 7%, the tensile strength of 200 mpa powder metallurgy iron base structure materials; FTG60Cu3Mo- 40, said combining carbon 0. 4% ~ 0. 7%, content of alloy elements, Mo0 Cu2 % ~ 4%. 5% ~ 1. 0%, the tensile strength of 400 mpa powder metallurgy iron base structure materials.