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金属材料可用标准注塑机械加工 - China Medical Device Manufacturer
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Wed, January 17th, 2018

2008 秋季刊 » 技术新知
金属材料可用标准注塑机械加工

Xyloy合金注塑部件(左)兼具金属的理想特性及塑料(右)的加工便利。
Cool Polymers(美国罗得岛州,Warwick;www.coolpolymers.com)推出了一种无需金属注塑工艺(MIM),只要使用标准注塑设备及塑料模具就能加工的轻质金属合金。Xyloy合金是兼具金属理想特性和塑料加工便利性的理想材料。 产品经理Jim Miller说:“由于成本和公差等因素,MIM工艺易受部件大小限制。假如采用能以普通注塑工艺加工的材料,那么这些部件的种类将更广泛,其重量可从数克一直到数磅。”Xyloy经注塑形成立体净成形部件,加工成无孔产品比压铸金属零件更坚硬,具有金属常规特性,包括硬度、热传导和电传导特性。Xyloy的极限抗张强度达325MPa,屈服强度为250MPa,断裂时延展率为2%,弹性模量90GPa,热传导系数110W/mK。注塑收缩比例不超过0.5%。Xyloy注塑后无需再次加工。成品可添加纹理或上漆,并能采用镀膜涂层和粉末涂层。

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