Introduction,powder,metallurgy business, insurance Introduction of powder metallurgy knowledge
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The applicationsof powder metallurgy products is very wide. Wherein the powder metallurgy is animportant application of purifying silicon powder,die-casting of the silicon material of the powder into a block, and placed in avacuum melting furnace or other inappropriate equipment to place the powder inthe processing or purification, the other can be in the silicon materialdie-casting into a massive, powdered silicon is expected to join the binder,and stir well; The method first is press-molded the power and pressed into thebulk material, and then placed in a vacuum furnace avoids causing the loss ofthe silicon material, also easily lead to contamination of the furnace andvacuum system, affecting the life of the vacuum melting equipment; anotherobject is to provide a binder, the binder may be lack the metal ductility andplastic at room temperature, high hardness, brittleness, and lead to thedifficulty of press-forming a very large non-metallic crystalline siliconmaterial, ease of molding, while the binder not only led to the increase ofimpurities in the silicon in the reaction, but also with the existing siliconimpurities, separated the impurities from the silicon and to improve efficiencyand purity.We can see from the history of humantechnological development, the modern world has experienced two industrialrevolutions are the discovery and application of new materials for the pilot.The development of the iron and steel industry, laid the material foundationfor the 18th century to invent the steam engine and the application on behalfof the first world revolution. Since the middle of this century, electronictechnology, especially the invention and application of microelectronicstechnology, represented by the second world revolution, the silicon singlecrystal material plays a central role, combined with the subsequent advent oflaser materials and optical fiber human society into the "informationage", therefore, to be expected, who mastered the new material, who can graspsthe initiative of the 21st century high-tech competition!Advanced ceramic materials is amulti-functional and system integration technology of functional ceramics,high-performance ceramic films, heterogeneous thin films, integrated withmicro-processing technology, the reinforcement of structural ceramics andcomposites, toughening technology, advanced ceramic low cost, high reliability,the bulk of the preparation technique. The high-temperature superconductingmaterials mainly mass production technology of high-temperature superconductormaterials (quasi-monocrystalline and textured materials), practical hightemperature superconducting thin films and heterostructures films preparation,integration and micro-machining technology research and development.Powder metallurgy is the system use metalor metalpowder as the raw materials, after forming and sintering, manufacturingtechnology of metallic materials, composites and various types of articles. Thepowder metallurgy method similar to the production of ceramic, therefore, aseries of powder metallurgy new technology can also be used for the preparationof ceramic materials. Because of the advantages of powder metallurgytechnology, it has become the key to new materials, plays a pivotal role in thedevelopment of new materials.Powder metallurgy techniques can minimizethe alloy component segregation, eliminate bulky, a non-uniform cast structure.In the preparation of high-performance rare earth permanent magnet materials,rare earth hydrogen storage materials, luminescent materials, rare earthcatalyst, high-temperature superconducting materials, new metallic materials(such as the Al-Li alloy, heat Al alloy, superalloy powder corrosion ofstainless steel, powder high speed steel high-temperature structural materials,intermetallic compound, etc.) have an important role.Source:http://www.mhcmp.com Article Tags: Powder Metallurgy, Silicon Material, Rare Earth
Introduction,powder,metallurgy