Powder metallurgy processing technology
Powder metallurgy is a metal forming process which is heated by a metal powder below its melting point. Although this process has been in existence for over 100 years, it has become recognized as an important way of high quality in the last 25 years, and has a variety of important applications.
This success is due to the technology provided by other metal forming technologies, such as forging and metal casting, material utilization, shape complexity, near net shape size control, which includes the advantages of other metal forming. These, in turn, contribute to sustainable development, so that powder metallurgy is a recognized green technology.Â
 In reality, powder metallurgy includes several different technologies for producing semi dense and fully dense assemblies. The traditional powder metallurgy process, referred to as sintered ore, is used to produce the planet carrier.
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 In the process of metal injection molding (MIM), the operation of the scissors is made by hot pressing, and the production of the powder forging connecting rod is adopted. At the same time, metal additive manufacturing is gradually popularized.
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 Using many of these powder metallurgy processes, as well as other processes, such as spray forming, roll compaction, rapid solidification, and parts are usually made of particulate metal rather than metal powders. Today's advanced materials are rarely made of metal and metal alloy, usually including ceramic, ceramic fiber and metal compounds.
Applications:
Automation equipment, axial flow fan, inverter air conditioner motor and other fields.
Feature:
1)Smooth and flawless appearance.
2)Strong impact resistance and shock resistance.
3)Multi direction composite magnetization.
Metal Injection Molding (MIM) is an established and proven manufacturing technique for producing small, complex, tight-tolerance and high-performance metal parts. MIM is a cost-effective alternative to traditional metal forming techniques such as machining, investment casting, and powder metallurgy. MIM excels at applications that require shape complexity and material properties (high strength, magnetic permeability and corrosion resistance) that cannot be fulfilled by plastic and light metal alloys. It offers tremendous single-step parts consolidation potential that makes it a competitive alternative to stamped/machined-parts assemblies. Many design and economic limitations of traditional metalworking technologies can be readily overcome by MIM.Â
Today, MIM is serving critical performance applications in a wide range of industries and products including, automotive, commercial aerospace, cellular telephones, dental instruments, electronic heat sinks and hermetic packages, electrical connector hardware, industrial tools, fiber optic connectors, fluid spray systems, hard disk drives, pharmaceutical devices, power hand-tools, surgical instruments, and sporting equipment.
Why mim is best choice?
Cost Effective Design Flexibility
- Allows the freedom to manufacture complicated shapes that would be considered cost prohibitive by other methods.
- Provides for the manufacture of micro-sized parts in high volumes.
- Capable of producing features that cannot be achieved by investment casting such as small holes, thin walls and fine surface detail.
- Achieves net shape features such as internal and external threads, profiled holes and finely detailed surface textures, knurling, engravings and markings.
- Production scalability that allows from thousands to millions of parts, quickly and efficiently.
- Superior strength, magnetic, and corrosion properties due to high density achieved when compared to conventional powdered metal, plastics and die-casting.
- Net shape components from otherwise hard to process materials like Superalloys, Tungsten alloys and Titanium.
- Isotropic and homogeneous microstructure for uniform material properties.
- Capability to create alloys that are not available in wrought or cast form.
- Ability to make engineered density materials for weight critical applications.
About MIMO
 Suzhou Mimo Metal Technology Co.,Ltd. founded in 2006, is   located in the beautiful Yangtze River delta - Suzhou Wujiang. Company covers an area 9500 square meters, owns mixing workshop, injection molding workshop, degreasing sintering workshop, testing center. Company has always adhere to the "scientific and technological innovation, cooperation and win-win, sincere and high efficiency, first-class service" for the service concept, use high-tech enterprises and brand building our company's future, we have professional team and mature technology, resolved to become a domestic leading professional MIM manufacturing company
The following document contains details of the various alloys families used in Metal injection molding (MIM ) process.  These include the following:
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-Austenitic stainless steels  (good choice for smart watches parts and SIM card tray MIM)
n  304L
n  316L
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-Martensitic stainless steels
n  420
n  440C
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-Precipitation hardening stainless steels
n  17-4PH  (good choice for SIM card tray MIM)
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-Â Iron based
n  Fe2Ni0.5Mo
n  Fe4Ni0.5Mo
n  Fe8Ni0.5Mo
n  FN50
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The list of alloys represents the more popular products within the portfolio, but it is mot exhaustive. If there is an alloy of interest that does not appear in the list, please contact sales department for details on availability.
How to determine the ratio of metal powder and binder?
The viscosity of products increases with the increasing of solids content. When the solids content reaches 62%, the viscosity increases sharply after injection, allowing the solids content limit (up to 62%). When the binder is not enough, there is a gap between the two products will affect the powder, excessive mechanical strength of the binder, the solid content is too low, affecting degreasing, sintering shrinkage.How to control the cost during the process of MIM?
Metal injection molding is cost-effective compared other manufacturing process when produce complex shape, small size metal components in large quantity, and what else we can do to save more money?
Purchasing cost
The purity of powder metallurgy products between 95%-98% in general, and the procurement cost of raw materials is equal to the cost of each gram of metal materials costs x parts cubage x parts density. So to control the cost, the volume of the part is to be the precise calculation. Â
How to produce
The pressure is not the same different requirements of the product to, so the cost will be different. MIM productsused in the suppression of the equipment isn't more, and the speed should be fast.
Control the mold cost
We need to choose the high pressure materials when we choose the material as a mold material, which can ensure product specifications more accurate.
Contact with us in 24 hours.
Aaron Sale of Jiangsu Mimo Metal Co.,LTD.
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