Powder metallurgy gears of China’s present situation and development prospects of the industry
China’s Powder Metallurgical gear is smaller chip, non-chip high-tech product.
While powder metallurgy powder metallurgy parts in the whole gear is difficult to separate statistics, but both parts by weight or by volume, powder metallurgy gears in the automotive, motorcycle in the far make a big proportion in other areas of powder metallurgy parts. Therefore, from cars, motorcycles, powder metallurgy parts in the whole increase in the proportion can be seen throughout the powder metallurgy parts powder metallurgy gears in the rapid development in the position. If you press characteristics of sub-parts, gear belonging to structure class components, and the structural-type parts in the whole share of iron-based components are also much greater than the absolute weight of several other categories, powder metallurgy parts.
1, the main powder metallurgy gears
(1) camshaft toothed pulley camshaft toothed pulley is commonly used in a variety of automotive engine powder metallurgy parts, through a forming and finishing process, without requiring additional post-processing techniques, can reach the dimensional accuracy requirements, especially the gear precision. Thus, the traditional machining method of manufacturing than in material inputs and manufacturing has been greatly reduced, it embodies the characteristics of a typical powder metallurgy products. For example, powder metallurgy parts matching
Type the name of supporting parts: automotive engines; camshaft, crankshaft timing pulley, water pump, oil pump pulley, initiative, driven gear, initiative, driven sprocket, cam, bearing caps, rocker arm, bushings, thrust plate, valve guides, intake, exhaust valve seat auto gearbox; a variety of high or low speed gear synchronizer hub and components, clutch gears, cam, camshaft, slide, shift lever and bushings, guide blocks, synchronous ring
Motorcycle Parts: driven gear and components, sprocket, starter pawl, ratchet, star wheel, dual-gear, Deputy gear, change gear, putting cams, bushings, sliding bearings, centering sets, slave plate, intake, exhaust valve seat
Automobile, motorcycle pump: all kinds of oil pump gear, gear wheel, all kinds of oil pump rotor, cam ring automobile, motorcycle shock absorber all kinds of piston, at the end of the valve seat, guide seat of various piston compressors, cylinder block, cylinder head, valve plate, sealing ring
Agricultural products of various bushings, rotors, bearings
Others: Distributor gears, planetary gears, internal gear drive, combination gear, all kinds of stainless steel nuts, the magnetic poles.
2, the development prospects of powder metallurgy gears
Although the powder metallurgy industry has been nearly 10 years of rapid development, but the same industry abroad, there are still gaps in the following aspects: (1) Enterprise more than a small scale, economic benefits and foreign enterprises a big difference. (2) product cross-enterprise between lower prices and competition fierce. (3) Most enterprises lack technical support, research and development capabilities lag behind, the product grade is low, difficult to compete with foreign competition. (4) re-invested in short and troubled. (5) process equipment, facilities and backward. (6) exports less poor trade channels.
With China’s accession to WTO, the above deficiencies and weaknesses will improve, because accession to WTO, the market gradually internationalized, powder metallurgy market will be further expanded opportunities; while at the same time as the entry of foreign capital and technology, powder metallurgy and related technical level will also be improved and developed.
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