China MIM Manufacturer & Supplier
Automotive Parts China
China MIM Manufacturer&Supplier
Feedstock preparation

Feedstock preparation

The first step is to create a powder mixture of metal and polymer. The powder metals used here are much finer (typically under 20 microns) than those used in traditional powder metallurgy processes. The powder metal is mixed with a hot thermoplastic binder, cooled, and then granulated into a homogenous feedstock in the form of pellets. The resulting feedstock is typically 60% metal and 40% polymer by volume.
Injection molding

Injection molding

The powder feedstock is molded using the same equipment and tooling that are used in plastic injection molding. However, the mold cavities are designed approximately 20% larger to account for the part shrinkage during sintering. In the injection molding cycle, the feedstock is melted and injected into the mold cavity, where it cools and solidifies into the shape of the part. The molded "green" part is ejected and then cleaned to remove all flash.
Debinding

Debinding

This step removes the polymer binder from the metal. In some cases, solvent debinding is first performed in which the "green" part is placed in a water or chemical bath to dissolve most of the binder. After (on in place of) this step, thermal debinding or pre-sintering is performed. The "green" part is heated in a low temperature oven, allowing the polymer binder to be removed via evaporation. As a result, the remaining "brown" metal part will contain approximately 40% empty space by volume

Sofine Auto Parts PIM Tech

Sofine Auto Parts PIM Tech (Sofine Tech) is an excellent designer, manufacturer and marketer of innovative Metal Injection Molding(MIM),Titanium alloy Injection Molding and Ceramics Injection Molding(CIM) for the worldwide market.

We specialized in the research and development of powder injection molding products, providing large quantities of various ferrous-based and stainless steel structural parts, functional components and appearance components with high precision, complex shape, good mechanical properties and delicate appearance to meet various customers’ needs. Following a growing demand for the incorporation of component in technology, Sofine Tech has entered the arena of planning and producing and solutions for all types of industry. Our best engineers will solve specific problem.

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  • Product Categories

    MIM For Automotive Parts
    —Engines
    —Gearboxes
    —Ignition System
    —Locking Mechanisms
    —Exhaust Valve
    —Electronic Systems

  • Company Description

    Sofine Gian PIM Tech(Sofine Tech) is an excellent designer, manufacturer and marketer of innovative Metal Injection Molding(MIM),Titanium alloy Injection Molding and Ceramics Injection Molding(CIM) for the worldwide market.
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  • Contact Information

    Contact Person:Ms. Sophia Zheng
    Mobile Phone: +8613957856449
    Telephone:86-574-27890908
    Fax: 86-574-27871600
    Email: automim@sofinepim.com
    Website:www.pimsupplier.com
    Address: NO.181, Block A International C&E Center, Jiangdong Huizhan Road , Ningbo, 315000, China