Powder metallurgy oil-retaining bearing in general is mainly by the materials used powder pressing, sintering, plastic, leaching process such as oil made and become. Today's machines are mostly automation degree is higher. Daily output is bigger, most of the product a can forming, therefore batch the bigger the better production. And now with mold a bit less word may only do hundreds of thousands, many words may do more than one million only. But mould cost is higher, so would not do less batch, and mould replacement time is long also.
Powder metallurgy oil-retaining bearing in general a can forming, basic need not cutting processing. Cost than machining light, the material waste little also, price and therefore cheaper. Also meet now advocate of managing the sources of energy national policy, and is therefore think that this is a not fall behind the technology.
Powder metallurgy oil-retaining bearing the matrix has been in use a vacuum of leaching method with full of lubricating oil, and in the operation temperature and pumped because the reason, one of the lubricating oil to the surface being running, it can be used for not add the lubricating oil other occasion.




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