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The application of powder metallurgy in various fields

The application of powder metallurgy in various fields

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  • Time of issue:2020-09-29 17:24
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(Summary description)Powder metallurgy is the process of making metal powder and making materials and products from metal powder(or a mixture of metal powder and non-metal powder)by forming and sintering process.

The application of powder metallurgy in various fields

(Summary description)Powder metallurgy is the process of making metal powder and making materials and products from metal powder(or a mixture of metal powder and non-metal powder)by forming and sintering process.

  • Categories:NEWS
  • Author:
  • Origin:
  • Time of issue:2020-09-29 17:24
  • Views:
Information
Powder metallurgy is the process of making metal powder and making materials and products from metal powder(or a mixture of metal powder and non-metal powder)by forming and sintering process.
Powder metallurgy is the process of making metal or using metal powder(or a mixture of metal powder and non-metal powder)as raw material,forming and sintering,making metal materials,composites and various kinds of products.Powder metallurgy is similar to the production of ceramics,therefore,a series of new powder metallurgy technologies can also be used in the preparation of ceramic materials.Because of the advantages of powder metallurgy technology,it has become the key to solve the problem of new materials and plays an important role in the development of new materials.
(1)Powder metallurgy technology can minimize the alloy component bias and eliminate the large and uneven casting structure.It plays an important role in the preparation of high performance rare earth permanent magnetic materials,rare earth hydrogen storage materials,rare earth luminescent materials,rare earth catalysts,high temperature superconducting materials,new metal materials(such as al-Li alloy,heat-resistant Al alloy,superalloy,powder corrosion-resistant stainless steel,powder high-speed steel,intermetallic compound high temperature structural materials,etc.).
(2)A series of high-performance non-equilibrium materials,such as amorphous,microcrystalline,quasicrystal,nanocrystalline and supraturated solid solution,can be prepared.These materials have excellent electrical,magnetic,optical and mechanical properties.
(3)It is a low-cost technology for the production of high-performance metal base and ceramic composite materials that can easily realize multiple types of composites and give full play to the characteristics of each component.
(4)It can produce materials and products with special structure and performance that cannot be produced by ordinary smelting method,such as new porous biomaterials,porous separation membrane materials,high-performance structural ceramics and functional ceramics,etc.
(5)The net shape can be formed and automated batch production can be realized,thus,the resource and energy consumption of production can be effectively reduced.
(6)It can make full use of ore,tailings,steelmaking sludge,rolling iron and steel scales and recycling waste metal as raw materials,which is a new technology that can effectively conduct material regeneration and comprehensive utilization.
The main application
Powder metallurgy products have a wide range of applications,from ordinary machinery manufacturing to precision instruments;From hardware tools to large machinery;From electronics to motor manufacturing;From civil industry to military industry;Powder metallurgy technology can be seen from general technology to cutting-edge high technology.Typical applications-The automotive industry has a large number of powder metallurgy parts in the automotive industry.For instance,
1.Engine components
To improve fuel economy and control emissions,the working conditions of car engines have become more stringent.With powder metallurgy seats,valve guides,VCT and sprockets,it offers high strength,high wear resistance and excellent heat resistance.
2.Shock absorber components
In the shock absorber of automobile and motorcycle,piston rod and piston guide valve are important parts.Considering the stable damping force of the shock absorber,the use of powder metallurgy parts,with a high precision sheet surface,can reduce friction,ensure the stability of handling,improve ride comfort.
3.Typical applications-household appliances
Some materials and parts of household appliances can only be made by powder metallurgy,such as the porous self-lubricating bearings in refrigerators,compressors,washing machines,electric fans,etc.Some materials and parts for home appliances,such as the complex shaped gears and magnets used in home air conditioning fans and vacuum cleaners,are made of powder metallurgy to produce better quality and lower prices.

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