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| Metal
Injection Molding (MIM) Parts |
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| 1. MIM Processing
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MIM is
fast growing to bridge the manufacturing gap which other metal
working technologies and shaping processes can not be fulfilled
because of technology or cost. Please find MIM processing as follows: |
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1. Powder Mixing
A fine metal powder is blended
with a binder system to produce a feedstock suitable for Injection
molding. |
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2. Injection Molding
The feedstock is injected
into molds similar to those used in conventional for plastic
injection molding. |
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3-1. De-binding
The molded ¡°green¡± parts are
immersed in a water bath to dissolve the majority of the binder. |
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4. Sintering
The ¡°green¡± parts are sintered
in furnace at high temperature. |
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5. Finished parts
After sintering,
the net shape components are ready without any secondary operations. |
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3-2. Nylon Bonded products
Such
as bonded high-density and magnet products etc.
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| 2. MIM Advantages
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High
Shape Complexity: MIM process can produce more complex
parts than either investment casting or traditional press and sinter
techniques.
Low Cost: The cost can be saved by eliminating
machining operations.
Tight Tolerances: Dimensions of MIM parts
produced with our feedstock can be held to +/- 0.001~0.002" per
inch.
High Density: MIM parts produced with our feedstock
will have density levels between 97.5-99.5%. These levels typically
exceed traditional press and sinter techniques.
High Performance: The tensile strengths, elongations and hardness are superior to
traditional press and sinter techniques, and comparable to investment
casting or machine components.
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| 3. MIM Typical Materials
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| Material Group |
Alloy/Material |
Description |
| Tungsten heavy alloy |
W-Ni-Fe W-Ni-Cu |
High density (max 18.5g/cm3,
small coefficient of expansion and large modulus of elasticity.
It is extensively used in military equipments, balance weights,
aircraft components, nuclear and medical shields, fishing and sport
tackles etc. |
| Tungsten-Copper Alloys |
Tungsten-Copper |
Characterized by high thermal conductivity,
low thermal expansion and high wear resistance combined with excellent
electrical conductivity. |
| Bonded high-density products |
W-Nylon |
High density (up to the density of
lead 11.0 g/cc) Unlike lead, these compounds are completely nontoxic.
Replace lead for weighting, balancing and radiation shielding applications. |
| Soft Magnetic Materials |
Nickel-Iron |
High permeability, low loss magnetic
alloys. |
| 4. Application |
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The technology
excels at applications that require shape complexity and high
final properties, such as high strength and density, excellent
magnetic permeability, high temperature strength, corrosion resistance,
and thermal conductivity. These cannot be fulfilled by plastics
or light metal alloys. MIM Applications include the following: |
| 5. Capability
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MWe can supply you high
quality MIM part at competitive price. Our production capability
can reach about 100Ton/year or 15Ton/month. If your quantity can
reach 20,000pcs or more per order or shipment, it will be very
fit for MIM processing.
Welcome to contact us for detail information of MIM parts |
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