In the 1970s, the American scholar Wiech first developed a powder metallurgy process for injection molding of metal powders. The process has been rapidly developed and successfully industrialized in the following decades, and is reflected in the preparation of metal and metal-based composite parts. There is a huge cost advantage.

There are many ways to turn loose powder into a complete workpiece. One of these processes is called "a revolution in manufacturing" by foreign media, and that is powder injection molding.

​WorldP is held every two years and is held alternately in North America, Asia and Europe. In 2020, the World Metallurgy Powder, Tungsten, and Refractories Conference of the Metal Powder Industry Federation (MPIF) and APMI International will be held in Montreal, Canada. It will bring together PM, metal additive manufacturing (AM), tungsten, Professionals and decision makers in the materials and hard materials industries exchange the latest developments and innovations. From

MIM (Metal Injection Molding) is an abbreviation for Metal Injection Molding. It is a molding method of injecting a plasticized mixture of metal powder and its binder into a mold. It first mixes the selected powder with the binder, and then granulates the mixture into the shape required for injection molding.

Metal injection molds are generally used for the production of small parts, and the mold size is very small. In normal use, as long as the use area of the template does not exceed 60% of the length and width, and the depth compensation exceeds 10%, the strength calculation may not be performed. Moreover, the shape of the mold is relatively complicated, and the actual force in the cavity is also complicated.

In special cases, such as the rapid production of samples and small batch parts, in order to simplify the process, Q235 steel, 45 steel. Aluminum alloys, zinc-nickel alloys, etc. are also commonly used to make certain cavities. This will greatly shorten the development cycle of the sample. However, such molds cannot generally be used for mass production.

When the injection mold is working, it usually bears an alternating load of 20 ~ 50MPa, accompanied by the alternating temperature of cold and hot. In ultra-precision injection molding, the molding pressure used can even exceed the normal use pressure several times. The service life of an injection mold is generally tens of thousands or even hundreds of thousands of times, so the mold should have sufficient strength and rigidity.

A significant development direction of powder injection is closely related to microsystem technology. In the context of Microsystems, such as electronic information, microchemistry, medical devices​, etc., the equipment is constantly miniaturized and the functions become more and more complex. And the powder injection molding technique supplies the possibility of completion.

The characteristics of the defects in injection process: its appearance have burr, flash, foaming,corrugated surface, layered or skin, depression and surface black spots deformation, low green strength, mold paste operation. The factors and reasons of these defects are not same,the temperature of injection and pressure is the key factors.

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MIM can produce new composite materials that are difficult to manufacture in traditional processes, such as laminated or two-material or wear-resistant mixed metal-ceramic materials.

The complex shape, small size and high output of the parts are the strengths of the MIM process.

The above are some of the more critical points. In order to ensure the quality of CNC machining parts, it is necessary to pay attention to these points in order to process CNC machining parts.

The above are some of the more critical points. In order to ensure the quality of CNC machining parts, it is necessary to pay attention to these points in order to process CNC machining parts.

Among metals, tungsten has the highest melting point, high temperature strength and creep resistance, and good thermal conductivity, electrical conductivity and electron emission performance

Metal powder injection molding has been widely used in mechanical industry, electronic industry, automobile industry, office automatic industry, wearable devices, photoelectric industry, military industry, medical devices etc. ​Computers and auxiliary facilities: printer parts, core, striker shaft pin, drive parts.

Stainless steel plate theoretical weight calculation formula Steel theoretical weight (kg) = order (mm) x width (mm) x length (mm) x dense/

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SUS316L characteristics: plasticity, toughness, cold deformation, good performance of welding

The Mo content of 316L makes this steel grade excellent in pitting resistance and can be safely used in halogen-containing environments such as Cl-.