Copper base powder metallurgy thrust ring and preparation method thereof

Copper base powder metallurgy thrust ring and preparation method thereof, in particular to the powder metallurgy thrust ring, thrust bearing and other parts of the copper, tin, lead and graphite mixed components used in the marine gear box, and the preparation method thereof. The copper core plate is coated with tin bronze powder as an adhesive layer, and the composite copper base powder metallurgy friction reducing layer on the adhesive layer is used;

Copper based powder metallurgy friction reducing layer consists of tin powder 8 ~ 10%, lead powder 4% to 2, graphite powder 1% and the rest for copper powder. The formula is applied to the following steps: copper plating layer, coating adhesive layer and composite copper base powder metallurgy friction reducing layer, pre sintering, pressing oil groove, re firing, and sintering. A copper based powder metallurgy thrust ring and a preparation method thereof are of low pressure, high strength, low manufacturing cost and high finished product rate.

Copper based powder metallurgy oil bearing

Cu Fe based powder metallurgy bearing working principle: powder metallurgy bearing the porous sintered body, the impregnation of 10%~40% (volume fraction) of lubricating oil, to oil supply condition. During operation, the bearing temperature, because the expansion coefficient of oil than metal, thus automatically enter the sliding surface to stop working when the oil lubricated bearings, and decreased with the temperature being sucked back into the void.

Cu Fe based powder metallurgy bearing is to iron and copper powder as raw material, through mould pressing, sintering, vacuum oil immersion after processing. The products are widely used in household appliances, electric tools, textile machinery, chemical machinery and automobile industry etc..

Copper iron base powder metallurgy bearing processing type: can processed into a straight sleeve, flange shaft sleeve, gaskets, slider, non-standard shaped pieces, supporting non-standard custom-made products.

Copper iron base powder metallurgy bearing application characteristics: powder metallurgy bearings oil in general is mainly used raw material powder by pressing, sintering, shaping, oil impregnation process and. The production machine with higher degree of automation, the daily output is relatively large, once most of the products forming, so the better batch production.

And now for a little less mold might do a few hundred thousand, many words can do more than one million. But the mold cost is relatively high, so the small batch if not done well, and mould replacement time is long. Powder metallurgy oil bearing in general will be able to shape, basically no cutting processing. The cost is lower than the machine processing, the material waste also is little, the price therefore is quite cheap. Also in line with the current national policy to promote energy conservation, so that this is a technology that will not fall behind.

Powder metallurgy oil bearing the matrix have used vacuum impregnation method with lubricating oil, and in operation due to the elevated temperature and the pump suction, the lubricating oil will seep to the running surface, so it can be for no extra lubricant occasions.