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Search results for MIM products
  • 11


    Why choose metal injection molding process
    MIM is compared with traditional powder metallurgy MIM can make products with complex shapes, avoiding more secondary machining. MIM products have high density, good corrosion resistance, high strength and good ductility. MIM can combine 2 or more PM products into one MIM product, saving materials and processes.
  • 08


    Powder metallurgy injection molding sintered parts
    MIM Sintering is the final step in the MIM process, eliminating pores between powder particles.Enable MIM products to achieve full density or near full density.Due to the use of a large number of binders in metal injection molding technology, the sintering shrinkage is very large, the shrinkage rate is generally up to 13%-25%, so there is a problem of deformation control and dimensional accuracy control.In particular, because most MIM products are special-shaped parts with complex shapes, this problem becomes more and more prominent. Uniform feeding is a key factor for the dimensional accuracy and deformation control of final sintered products.The high density of powder shaking can reduce the shrinkage of sintering.There is also a carbon potential controlling factor in sintering for iron - based and stainless steel products.Due to the current price of fine powder is higher.It is an important way to reduce the production cost of powder injection molding to study the strengthened sinteri
  • 30


    Introduction of metal injection molding process
    Metal injection molding MIM is a component manufacturing technology.Also known as sintered products,This technique maximizes the solid particle content and completely removes the binder in the subsequent degreasing sintering process, thereby densifying the forming blank.This powder metallurgy process is known as metal powder injection molding. MIM technology features:Complex parts with final shape and size can be directly prepared.For example, asymmetrical parts, parts with grooves, transverse holes, blind holes, parts with large changes in wall thickness, parts with surface patterns and text, etc.The product performance is superior, because the MIM product microstructure is uniform, there is no thick crystal structure and component segregation in the casting process, the product density is high, the product strength, hardness, derivative rate and other mechanical properties are high, the wear resistance is good, the structure is uniform, it is obviously better than precision casting
  • 26


    What are the criteria for selecting MIM processes? Under what circumstances is the MIM process suitable?
    The process technology, materials and equipment of the MIM process have become more and more mature in China, and the application range is also very wide. The complex shape, small size and large output of the parts are the advantages of the MIM process. These strengths have led to a number of applications in electronic digital products, light weapons, watches, hand tools, orthodontic brackets, automotive engine parts, electronic seals, cutting tools and sports equipment. So, how to determine whether a product should choose MIM process, that is, what is the criterion for choosing MIM process? At present, there are mainly the following main items, and it is necessary to consider clearly before selecting the MIM process.
  • 26


    History of MIM and Future Trend
    MIM can be traced back to the earliest MIM preparation of ceramic spark plug in 1920s。In the following decades, powder injection molding mainly focuses on ceramic injection molding. Powder injection molding gradually transformed to metal injection molding oriented until 1979 Parmatech established by Wiech achieved two awards for MIM products, and Wiech and Rivers acquired patents. MIM companies were set up one after another, after Parmatech transferred out several patents. In 1980, Wiech established Witec, however, it was acquired by Brunswich which entered into MIM industry in 1982. Subsequently, Brunswick registered subsidiaries like Omark,Remington and Rocky. In 1986, a Japanese company Nippon Seison brought in Witec technology.
Metal Injection Molding

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