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我厂从联邦德国引进的热模锻自动线,模具的预热一直采用液化石油气加压缩空气助燃的方法,这种预热方法存在着预热时间长、占用设备多、能量损失大、预热效果差等缺点。为改造这套装置,我们设计试制了电热模具预热器。一、电热模具预热器的结构(见附图)电热模具预热器由一个与模具大小相同的金属框架以及电热元件组成。金属框架由两层铁皮中间用陶瓷纤维做隔热里衬,组成一个保温外壳。电热元件采用多根电阻丝,总功率根据模具的大小及模具的预热时
I plant imported from the Federal Republic of Germany hot forging line, the mold has been using liquefied petroleum gas and compressed air preheating combustion method, this preheating method there is a long warm-up time, occupy more equipment, energy loss, preheating Poor results and other shortcomings. In order to rebuild this set of equipment, we have designed and manufactured the electric mold preheater. First, the structure of electric mold preheater (see photo) Electric mold preheater by a mold with the same size of the metal frame and electric components. Metal frame by the middle of two layers of metal fiber insulation lining made of ceramic fibers to form a thermal insulation shell. Electric heating element using multiple resistance wire, the total power according to the size of the mold and the mold when preheating