High chrome hammer is high chromium cast iron, carbon steel as raw material, the use of cast-process manufacturing high chromium cast iron / steel bimetal composite hammer. Then as we expand on the need for pre-heating device is designed de zshi. Due to the high chromium cast iron metal liquid at room temperature and high temperature carbon steel combination of molding, the total lack of heat, high chrome hammer difficult to achieve metallurgical bonding material interface. There is a big stress material interface, the interface bonding strength is difficult to achieve the requirements of complex test hammer price, significantly affect the microstructure and properties of the sample. Therefore, the test of the core material is preheated composite hammer, so preheated core combined with liquid metal forming, so that the two achieve a good metallurgical bond to reduce residual stresses generated alloy composite hammer, improve interfacial bonding strength. Therefore, before entering the liquid-solid core material effect, should be designed to a preheating means for preheating the core material to a certain temperature. In the past mostly used for core preheat oven to finish, when heated to the required temperature, out into the cavity, and then close the box pouring molten metal. The whole process due to the long heating time, the heating element is easily oxidized. Meanwhile, preheat removed from the furnace to the casting, it is generally difficult to control the middle of the time, leading to the actual temperature changes before preheat a large complex, can not guarantee the quality of stable complex interface. Hammer, there are many. We live in the small set of nails used in a small hammer, large use of large-scale industrial production of wear-resistant hammer. Which in the end is that we talk about today's high chrome hammer, the hammer crusher is mainly used for equipment, are the main components of the crusher. Mainly used for some of the higher hardness of the stone crushing, such as basalt, granite, river pebbles and so on. Along with the strengthening of infrastructure construction, mining machinery industry trends increasingly prosperous, crusher equipment also has been rapid development, hammer crusher main parts along with the amount of increase, which is high chrome hammer head. Composite hammer manufacturers | Fushun composite hammer | Heavy provided by Xin Li Xin Li Gongyi City Heavy Machinery Manufacturing Co., Ltd .. Gongyi City Xin Li Heavy Machinery Manufacturing Co., Ltd. (www.gyxljxc.com) strong, credible, in Zhengzhou, Henan forging industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Xinli Heavy and you hand into the brilliant, for a better future!