Powder metallurgy is a process technology for preparing metal or using metal powder (or a mixture of metal powder and non-metal powder) as raw materials, forming and sintering, to produce metal materials, composite materials and various types of products. The powder metallurgy products industry in a broad sense includes iron and stone tools, hard alloys, magnetic materials and powder metallurgy products. The powder metallurgy products industry in the narrow sense only refers to powder metallurgy products, including powder metallurgy parts (accounting for the majority), oil-bearing bearings and metal injection molding products.
The production process of powder metallurgy gears: mold design and raw material determination-mold manufacturing-raw material mixing-mold installation and machine debugging production-pressed rough mesh belt furnace sintering-machining-heat treatment-deburring-anti-rust immersion oil-inspection Qualified packaging.
In the production of powder metallurgy gear teeth, the design and production process of the mold must be arranged in place. The material arrangement of the gear is very particular. There are generally three choices of powder metallurgy gear materials. FC0208 is ordinary copper carbon steel. It is not very difficult to make some Powerful gears were previously made of plastic parts. In order to improve strength and precision, powder metallurgy gears are selected to reduce wear and fit accuracy, noise will be reduced and service Powdered Metallurgy Stainless Steel Parts life will be enhanced. There are also two kinds of pre-alloyed powders FN0208 and FN0408, namely AB alloy powder and AE alloy powder commonly known in the powder metallurgy industry. These two alloy materials are fully mixed by the manufacturer. The material has good alloy properties, no segregation, and composition. Stable, the density of the pressed blank can reach more than 6.95, and the warm pressing technology can also be used, and the pressed blank density can reach 7.2. After high temperature sintering at 1120 degrees for 30 minutes, the metallographic bonding has high strength. AE alloy powder has a higher alloy content than AB alloy powder. In the selection of gear materials with higher strength requirements, powder metallurgy professionals must select appropriate materials based on relevant experience and material properties.
Furthermore, the design of powder metallurgy gears is very important. Professional and experienced designers will optimize the teeth of the gears to maximize the strength of the teeth without affecting the performance of the gears.