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对于微型机械、微型化学或传感器的应用,可用几种金属与合金来增强其力学与物理性能.上述零件都可用微型注射成型(μ-MIM)的粉末冶金工艺成批生产.这篇论文叙述了金属的多金属微型零件、双金属微型金属注射成形(2C-μ-MIM)的新制造方法。和塑料的“双色”注射成形相似,这种工艺是利用在一个模型中同时注射与接合二种材料,这可使微型零件中集成多种功能。制成具有紧密连接的材料界面的最终形零件。在这篇论文中,是以非磁性与铁磁性不锈钢(316L与17-4PH)作为2C-μ-MIM工艺的例子。表明,用精心选择与定制的金属粉末、注射成形与共同烧结可形成小于500×500μm~2的材料紧密连接界面的。
For micromechanical, micro-chemical or sensor applications, several metals and alloys can be used to enhance their mechanical and physical properties.They are available in mass production using micro-injection molding (μ-MIM) powder metallurgy processes.This paper describes Metallic Multimetal Micro Parts, New Manufacturing Method for Bimetallic Micro Metal Injection Molding (2C-μ-MIM). Similar to plastic “double-color” injection molding, this process utilizes the simultaneous injection and bonding of two materials in a single mold, which allows multiple functions to be integrated into the microcomponents. Make the final shape part with a tightly-connected material interface. In this paper, non-magnetic and ferromagnetic stainless steel (316L and 17-4PH) are examples of 2C-μ-MIM processes. It shows that, with careful selection and customization of metal powder, injection molding and co-sintering can form a material with less than 500 × 500μm ~ 2.