国外先进工业国家在链条与模具生产中均采用了可靠性设计以及CAD/CAM技术 ,开发新品速度快、精度高 ,质量较有保证。大多数新产品具有高耐磨、高疲劳、高精度的特点 ,结构形式上有微型链以及多种输送链、缆链、倍速链等 ,在材料上则使用了耐磨、耐热、塑料、含油粉末冶金等材料 Foreign advanced industrial countries in the chain and mold production are used in the reliability of design and CAD / CAM technology, the development of new products fast, high precision, quality assurance. Most of the new products are characterized by high wear resistance, high fatigue and high precision. The structural forms include micro-chains and various conveyor chains, cable chains and double-speed chains. The materials are made of wear resistant, heat resistant, plastic, Oil powder metallurgy and other materials