Although it is hard to calculate the quantity of Powder Metallurgy gears used in vaious industries, no matter calculated by weight or by quantity, the percentage of Powder Metallurgy gears used on automotives and motorcycles industries are much higher than the other Powder Metallurgy parts used on the other industries.So we could know that powder metallurgy sintering gears would get a quick development.
The superiorities of Powder Metallurgy sintering gears:
1, Low cost, high production efficiency, molded by one time, no any secondary process.
2, Since the good processing features,so the sintering gears could be processed to be oil-bearing parts with a good self-lubricating performance,but not as good as the oil bath lubrication processing.
3, No any wast during the compacting process.
The strength features of powder metallurgy sintering gears:
1, The load torque could reach 14NM of normal FN-0205 material sintering gears,and the warm pressing parts could reach 20NM.If warm pressing with FD-0405 material,the load torque could reach 25NM. By the way,if all the gears used on one machine produced by powder metallurgy sintering technology,then the mildly could be 30-40% higher.
2, The precision of sintering gears is depend on the expansion coefficient of the material and the mold accuracy level,usually the mold accuracy level of the sintering gears with the outer dimeter less than 50mm is approximately 8-9 class, while the imported mold is 7-8 class.The biggest superiorities of powder metallurgy sintering gears is the easy massive production and all the dimension could be controlled well by the mold.
3, The strength is pretty excellent.
