Mechanical Circular Gear PM Sintered Part
Powder metallurgy gear is a high-tech product with less chips and no chips. Therefore, it can be seen from the increase in the proportion of automobiles and motorcycles in the entire powder metallurgy parts that powder metallurgy gears are in a position of rapid development in the entire powder metallurgy parts. If divided according to the characteristics of the parts, gears are structural parts, and the absolute weight of structural parts in the entire iron-based parts is far greater than other types, powder metallurgy parts.
Product Introduction
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Mechanical circular gear PM sintered part |
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Item |
Material |
Production Process |
Sintering Temperature |
Mold |
Custom |
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Mechanical circular gear |
40rc |
Powder metallurgy |
1180℃ |
To be customized |
Yes |
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Chemical composition |
C:0.37~0.44 Si:0.17~0.37 Mn:0.50~0.80 Cr:0.80~1.10 Ni:≤0.30 P:≤0.035 S:≤0.035 Cu:≤0.25 Mo:≤0.10 |
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Available Materials |
Low carbon stainless steel, titanium alloy (Ti, TC4), copper alloy, tungsten alloy, hard alloy, high temperature alloy (718, 713) |
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Product advantages
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Smoothness |
Dimensional accuracy |
Product density |
Appearance treatment |
Appropriate weight |
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Roughness 1～5μm |
（±0.1%～±0.5%） |
92～95% |
According to customer requirements |
0.03g～400g） |
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mechanical properties |
Sample blank size (mm): 25 heat treatment: Heating temperature for the first quenching (℃): 850; coolant: oil Second quenching heating temperature (°C):- Tempering heating temperature (°C): 520; Tensile strength (σb/MPa): ≥810 (when the actual hardness is 25HRC) Yield point (σs/MPa): ≥785 Elongation after break (δ5/%): ≥9 Reduction of area (ψ/%): ≥45 Impact absorption energy (Aku2/J): ≥47 Brinell hardness (100/3000HBW) (annealed or high temperature tempered state): ≤207 |
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Product Details
Powder metallurgy gears are difficult to count separately in the entire powder metallurgy parts, but whether by weight or number of parts, the proportion of powder metallurgy gears in various machinery, automobiles, and motorcycles is far greater than that of powder in other fields metallurgical parts.
Powder metallurgy gear is a high-tech product with less chips and no chips.
Therefore, it can be seen from the increase in the proportion of automobiles and motorcycles in the entire powder metallurgy parts that powder metallurgy gears are in a position of rapid development in the entire powder metallurgy parts. If divided according to the characteristics of the parts, gears are structural parts, and the absolute weight of structural parts in the entire iron-based parts is far greater than other types, powder metallurgy parts.
Application
Powder metallurgy gears are powder metallurgy parts commonly used in various automobile engines. Through one-time forming and finishing process, no other post-processing process is required, and the dimensional accuracy requirements, especially the tooth profile accuracy, can be fully met. Therefore, compared with the traditional mechanical processing method, the material input and manufacturing are greatly reduced, and it is a typical product that reflects the characteristics of powder metallurgy. Supporting examples of powder metallurgy parts Supporting category Parts name: automobile engine; camshaft, crankshaft timing pulley, water pump, oil pump pulley, driving and driven gear, driving and driven sprocket, cam, bearing cover, rocker arm, Bushings, thrust plates, valve guides, intake and exhaust valve seats, automotive gearboxes; various high and low speed synchronizer gear hubs and components, clutch gears, cams, camshafts, sliders, shift levers, bushings, guides Blocks, synchronizing rings Motorcycle parts: driven gears and components, sprockets, starting pawls, ratchets, star wheels, duplex gears, pinion gears, transmission gears, push rod cams, bushings, sliding bearings, centering sleeves , driven disc, intake and exhaust valve seats for automobiles and motorcycles: various oil pump gears, gear hubs, various oil pump rotors, cam rings, various pistons for automobiles and motorcycle shock absorbers, bottom valve seats, guide seat compression Various pistons, cylinder blocks, cylinder heads, valve plates, sealing rings, various shaft sleeves, rotors, bearings of agricultural machinery products Others: distributor gears, planetary gears, internal gears, combined internal gears, various stainless steel nuts, magnetic poles.
Prospects
Although the powder metallurgy industry has experienced rapid development for nearly 10 years, there are still gaps with foreign counterparts in the following aspects:
(1) There are many enterprises with small scale, and the economic benefits are very different from those of foreign enterprises.
(2) Products are crossed, companies lower prices with each other, and competition is extremely fierce.
(3) Most enterprises lack technical support, backward R&D capabilities, and low-grade products, making it difficult to compete with foreign countries.
(4) Reinvest in lack and distress.
(5) Technological equipment and supporting facilities are backward.
(6) The export of products is small and the trade channels are not smooth. With my country's accession to WTO, the above shortcomings and weaknesses will be improved. This is because after China's accession to WTO, the market will gradually internationalize, and the powder metallurgy market will have opportunities to further expand; at the same time, with the entry of foreign capital and technology, powder metallurgy And related technical level will also be improved and developed.
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