What is powder metallurgy gear? What are the scope of application?

What is powder metallurgy gear? What are the scope of application?

Powder metallurgy gear is the product of high and new technology with little chips and no chips. Powder metallurgy gears are difficult to be counted separately in the whole powder metallurgy parts, but the proportion of powder metallurgy gears in various machinery, automobiles and motorcycles is far greater than that of powder metallurgy parts in other fields, no matter by weight or by the number of parts.

Powder metallurgy gear

It can be seen from the rising proportion of automobiles and motorcycles in the whole powder metallurgy parts that the powder metallurgy gears are in a rapid development position in the whole powder metallurgy parts. If classified according to the characteristics of parts, gears belong to structural parts, and the absolute weight of structural parts in the whole iron based parts is far greater than that of other powder metallurgy parts.

Powder metallurgy gear is a kind of powder metallurgy part widely used in various automobile engines. Through one-time forming and finishing process, it does not need other post-treatment processes, and can fully meet the requirements of dimensional accuracy, especially the tooth profile accuracy. Therefore, compared with the traditional machining method, the material input and manufacturing are greatly reduced. It is a typical product reflecting the characteristics of powder metallurgy.

The application scope of gear die mainly includes three aspects: plastic gear die, powder metallurgy gear die and bevel gear precision forging die. The demand of powder metallurgy gear mould is the largest among the three. At present, the development of gear dies in China is still in the primary stage, and most of the small and medium-sized PM gears are processed by dies.

Powder metallurgy gears are difficult to be counted separately on the whole powder metallurgy parts, but according to the weight and the number of parts, the proportion of powder metallurgy gears on automobiles and motorcycles is much larger than that of powder metallurgy parts in other fields. Therefore, from the increase of the proportion of automobiles and motorcycles in the whole powder metallurgy parts, it can be seen that powder metallurgy gears have developed rapidly in the whole powder metallurgy parts.

The consumption of gears is very large. Each vehicle has more than 20 gears of different sizes. Many automotive gears are made of gear steel 20CRMNTI, and only a small number of high-grade car gears are made of stainless steel. Therefore, gear steel is increased simultaneously with automobiles, ships, engineering machinery, etc. In addition, the export of mechanical and electrical products promotes the demand for gears. In recent years, the export of machinery products has increased by more than 30% annually, and the consumption of gears has increased by more than 25%. Therefore, with the continuous release of terminal effective demand in the year, the gear steel market runs smoothly and the price seems to be relatively strong.

The domestic gear mold industry can be said to be mixed. Fortunately, the production of gear dies in China has a certain foundation, and the rapid development trend of powder metallurgy gears will bring more market space for gear dies.