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Category Archive NEWS
  • 26

    Aug

    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.
  • 26

    Sep

    Process Introduction of Powder Injection Molding
    Injection mold is main process of MIM technology, which can be divided into the following important steps: 1.stock feeding Before injection molding, set screw speed and pressure in the barrel, tightly close mold and contract ejectorbeam. In the during of injection, injection nozzle close to the runner, screw forward. At this moment, locking ring on the front of the screw is closed, in order to ensure feeding extruded from feed cylinder under pressure, filling mold cavity. When head of feed cylinder has enough feeding to inject into mold cavity, screw stops running.
  • 26

    Sep

    MIM is main development direction of future powder metallurgy technology
    Metal injection molding is a new powder metallurgy near net forming technology through modern plastic injection molding technology.its basic processing is: mixing up metal porder and organic binder and form feeding,in the heating and plasticizing state(~150℃), puting feed to mould cavity in injection machines to get the green parts, consider the green parts have plastic,we used chemically or pyrolysed way to remove 98% plastic get the brown parts, the finaly step is sintering to remove the rest of 2% plastic and get the sintered parts. Compare with traditional process, its process have high precision, good performance, low cost and etc characteristic
  • 26

    Sep

    Advantages of Metal Injection Molding Technology
    Metal Injection Molding(MIM) is a new powder metallurgy process that can produce sintered components with high Density and complicated shapes without the need for machining. with its unique characteristics, MIM is capable of producing precise metal parts for a wide range of products, including automobiles, cellular phones, hand tools, dental instruments, pneumatic tools, power hand tools, surgical instruments, sporting goods, and laptop computers. The common materials used in MIM range from stainless steels and alloy steels to soft magnetic materials. Generally, MIM can achieve accuracy tolerances ±0.5%. It can obtain an even higher dimensional accuracy once MIM works with other processing methods.
  • 26

    Sep

    Metal Powder Injection Molding: A Vibrant Global Industry
    Powder injection molding, including metal powder injection molding and ceramic injection molding, is a major manufacturing technology with an estimated annual sales of more than $2 billion and is growing. The production of metal powder injection molded parts accounts for about 90% of the total market of PIM products, and the global annual growth rate is still between 10-20%. Ceramic injection molded parts occupy a balance with tungsten carbide. Application of metal powder injection molding
  • 13

    Feb

    Metal powder injection molding technology
    China has made remarkable achievements in the manufacture of precision parts. MIM technology Metal (ceramic) powder injection molding technology is a cross-disciplinary product integrating plastic molding technology, polymer chemistry, powder metallurgy technology and metal materials science. It can use injection molds to inject blanks and quickly produce high density through sintering. High-precision, three-dimensional, complex-shaped structural parts can quickly and accurately materialize design ideas into products with certain structures and functional characteristics, and can directly produce parts in batches, which is a one-time change in the manufacturing industry. Metal powder injection molding technology not only has the advantages of less conventional powder metallurgy process steps, no cutting or less cutting, but also greatly improves economic benefits. It also overcomes traditional powder metallurgy process products, uneven materials, low mechanical properties, difficult t
  • 26

    Sep

    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

    Sep

    MIM Parts for Industrial and Tools
    Metal Injection Molding (MIM) technology combines the advantage of both powder metallurgy and plastic injection technology. It breaks the shape limit of conventional PM compression molding, while absorbs the capability of forming complex shape and realizing mass production with high efficiency of plastic injection technology. As a near net shape technology for high-quality precision components, MIM has the advantages which conventional powder metallurgy, precision machining and casting methods would not have. Here shows these advantages as following: *Capable of production complex shape small metal parts as plastic injection process. MIM part’s typical weigh is 0.1-200g;
  • 26

    Sep

    Analysis of Market Structure and Development Trend of China Powder Metallurgy Industry in 2018
    The market concentration of the powder metallurgy industry is high. The future will be closer to the head. Powder metallurgy plays an important role in the manufacturing industry. The development of the powder metallurgy industry is conducive to the healthy development of the region. At present, the global powder metallurgy market is mainly concentrated in North and South America, while in the Chinese market, it is mainly concentrated in East China and Central China. In the competition of enterprises, the concentration of powder metallurgy industry is high. In the future, with the continuous improvement of the requirements for powder metallurgy technology, the production capacity of small and medium-sized enterprises will be eliminated step by step.
  • 26

    Sep

    Development of Metal Injection Moulding Process for Medical Applications
    To counter the problems associated with the conventional processes of producing implants, a new approach has been invented, which is the adaptation of the injection moulding process for manufacturing the fracture fixation plates. With this technique in place, we have now taken a step in the right direction towards rapid manufacturing of fracture fixation plates, for the first time. The fracture fixation plates produced using this technique comply with the international standards including MPIF Standard 35, ISO 5832-1 and ISO 10933. The advantages of the present invention are design flexibility, rapid manufacturing, cost effectiveness and minimal waste compared to conventional process
  • 30

    Sep

    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
  • 08

    Oct

    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
  • 11

    Oct

    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.
  • 10

    Oct

    Metal powder injection molding production process with stainless steel powder
    Metal powder injection molding ceramic parts from powder injection molding technology , is a new metallurgical near net shape technology . In recent decades , MIM technology developed rapidly, can be applied to the material system include : Fe-Ni alloy , stainless steel , tool steel , heavy alloy , tungsten carbide, titanium alloys, nickel -base superalloys , intermetallic compounds , alumina , zirconia and the like .
  • 20

    Mar

    What are the requirements of 3D printing technology for metal 3D printing powder?
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  • 15

    Oct

    MIM ​Technical application
    MIM Technical application 1. Computer and its auxiliary facilities: such as printer parts, magnetic core, firing pin, driving parts; 2. Tools: such as drill bit, cutter head, nozzle, gun drill, spiral milling cutter, punch, socket, wrench, electrical tools, hand tools, etc.; 3. Domestic appliances: such as watch case, watch chain, electric toothbrush, scissors, fan, golf ball head, jewelry chain ring, ballpoint pen clamp, cutting tool head and other parts; 4. Parts for medical machinery: such as orthodontic braces, scissors and tweezers; 5. Military parts: missile tail fin, gun parts, warhead, medicine cover, credit parts; 6. Electrical parts: electronic packaging, micro motor, electronic parts, sensor parts; 7. Mechanical parts: such as loose cotton machine, textile machine, edging machine, office machinery, etc.; 8. Automobile and ship parts: such as clutch inner ring, fork sleeve, distributor sleeve, valve guide, synchronous hub, airbag parts, etc.
  • 18

    Sep

    Powder Metallurgy Helical Gears
    Metal powder metallurgy process is suitable for helical gears
  • 07

    Sep

    MIM Process can Directly manufacturing small size metal part
    Metal powder injection molding ceramic parts from powder injection molding technology , is a new metallurgical near net shape technology . In recent decades , MIM technology developed rapidly, can be applied to the material system include : Fe-Ni alloy , stainless steel , tool steel , heavy alloy , tungsten carbide, titanium alloys, nickel -base superalloys , intermetallic compounds , alumina , zirconia and the like .
  • 01

    Sep

    Metal injection molding process
    Metal injection molding (MIM)process
  • 08

    Jul

    WHY CHOOSE MIM PROCSEE
    ​WHY CHOOSE MIM PROCSEE (Metal injection molding process)
Metal Injection Molding



Contact Information

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 john@jhmimtech.com

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