双金属复合垂头铸造工艺及充型模拟模拟_学位论文.doc

双金属复合锤头铸造工艺设计及充型模拟 [摘要]：锤头是反击式破碎机中破碎矿石的主要部件，该部件在使用中锤柄不断承受交变的弯曲应力和冲击力，而锤头部位则主要承受较强的冲击力和摩擦力。本文通过设计出一种新型的锤头制作工艺，采用镶铸复合技术解决现有技术中存在的锤头易磨损、易破碎、使用寿命短的问题。采用的技术方案是双金属复合型锤头的制作方法，双金属复合型锤头的结构为：包括相连接的锤柄和端头，所述端头内部设置11根耐磨棒，锤柄部分为高锰钢，耐磨棒的主要成分为高铬铸铁，各耐磨棒之间呈等边三角形放置；与传统的砂型铸造相比较采用消失模模铸造工艺有大大的简化，且零件的质量及精度较高，设计自由度大。同时利用负压紧实可以解决高铬铸铁的固定问题；进而使耐磨棒的外表面与锤柄主体合金紧密结合，并力求达到冶金结合。并对铸造过程进行ProCAST铸造模拟。 [关键词]：镶铸复合法；高铬铸铁；高锰钢；消失模; The casting process design of Double metal composite hammer and filling simulation Fan-Hao （Grade08,Class1,Major control materials，Materials Science and Engineering，Shaanxi University of Technology，Hanzhong 723003，Shaanxi） Tutor:Wang-Hua [Abstract]: Hammerhead is the main parts of the broken ore crusher hammer handle, the component is in use constantly to withstand alternating bending stress and the impact hammer parts, mainly exposed to the strong impact and friction force. Through the design of a new type of hammerhead production process, using cast-in composite technology to solve existing technology hammerhead easy wear, easy broken, the short life of the problem. The technical solution adopted for the production of bimetal composite hammer, bi-metallic composite structure of the hammer: including the hammer handle and the end connected to the end internal settings wear rods 11, the hammer handle part greatly simplified, and the quality of the parts of high manganese steel wear bar the main component of high chromium cast iron, and other equilateral triangle is placed between each wear rod was; compared with the traditional sand casting using the lost foam casting process and accuracy of high design freedom. While taking advantage of the vacuum tight can solve the fixed problem of high chromium cast iron; thus closely integrated rods, wear-resistant outer surface with a hammer handle the main alloy, and striving to achieve a metallurgical bond. And the casting process ProCAST casting simulation.[Key words]: cast-composite method; high chro