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带低熔点合金自铸模的薄板冲压液压机是一种在机内可以铸造模具和进行冲压工艺的新型液压机。所谓低熔点合金自铸模是用锡、铋、铅、镉等元素,按一定比例组成低熔点合金,放入熔池内,加热到合金溶化,再用薄板做成拉伸制品的样件,浸入合金熔液里,样件上钻有小孔,合金流入并充填样件内腔,待合金冷却凝固后,进行分模、拆下样件,修平小孔合金塔子,就可进行冲压。这就大大地减少了钢模加工工作量,缩短了生产周期。况且低熔点合金可重覆熔解翻用,这就不但节省了模具存放场地,也简化了模具的保管和维护工作。上述优点在中小批量薄板拉伸
Sheet metal stamping presses with a low melting point alloy die are a new type of hydraulic press that can mold and stamp in-press. The so-called low-melting-point alloy mold is made of tin, bismuth, lead, cadmium and other elements, according to a certain percentage of low melting point alloy, into the pool, heated to melt the alloy, and then made of thin plate tensile samples, immersion alloy In the melt, a small hole is drilled on the sample, the alloy flows into and fills the inner cavity of the sample, and after the alloy is cooled and solidified, the sample is demolished, the sample is removed, and the small-hole alloy tower is trimmed to be punched. This greatly reduces the workload of steel processing, shortening the production cycle. Moreover, the low melting point alloy can be melted and turned over, which not only saves the mold storage space, but also simplifies the mold custody and maintenance work. The advantages of small and medium-sized batches stretch