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MIM technology process

Writer： Sints;   Source： 未知;   Date：2018-07-11
1. Introduction

Metal injection molding(MIM) is a very typical cross-border process,mixing two types of totally different process(plastic injection molding and powder metallurgy) into together.This new technology inspired engineers and gave them more space to design products.


2. Pre-sales evaluation

The pre-sales team of Sints will cooperate with you closely,help you to evaluate the cost,materials,suitable to use MIM to produce or not....Meanwhile,Sints will also give you suggestions to perfect the design to achieve the best condition by using MIM technology.


3. Raw material

Special metal powder(micro level) and high quality high polymers are mixing together,through precision control during process,forming MIM feed stock.Comparing with traditional Powder metallurgy,the size of metal powder(micro level) and lowest impurity content insures the sintering density of MIM parts which can achieve rational density 98%;and special blended various high polymers can not only provide good flow rate during injection but also ensure high efficiency during be-binder.


4. Injection molding

Using injection machine to heat MIM feed stock and evenly filling them into mould cavity,cooling down to get MIM brown parts.Conforming with MIM mould property and rational technical process are the key.


5. De-binder

Using professional debinder furnace to remove polymer,the remaining polymer was used to maintain the shape of products in order to moving them into vacuum sintering furnace to sinter.


6. Sintering

In MIM vacuum sintering furnace or atmosphere furnace,removing remaining polymer and densifying metal powder to complete metal parts in near melting point.After cooling down,gets the sintered blanks. 


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