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首页> 外国专利> PROCESS FOR PRODUCING PLASTIC FOAM BY DIELECTRIC HEATING

PROCESS FOR PRODUCING PLASTIC FOAM BY DIELECTRIC HEATING

机译：用电加热生产泡沫塑料的方法

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摘要

A PLASTIC COMPOUND 11 COMPRISING A CHEMICAL FOAMING AGENT WHICH DECOMPOSES BY HEAT PRODUCES A GAS IN A MOLDING CAVITY DEFINED BY OPPOSITE CAVITY SURFACES 21, 31 IS CHARGED AND THE PLASTIC COMPOUND SUBJECTS TO DIELECTRIC HEATING IN SUCH A WAY. MELTING AND PLASTIFYING THE PLASTIC COMPOUND AND DECOMPOSING THE CHEMICAL FOAMING AGENT. / P P ONE OF THE CAVITY SURFACES 31 IS MOBILE TO SPOIL AND APPROACH THE OTHER CAVITY SURFACE 21 SO THAT THE VOLUME OF THE MOLDING CAVITY IS VARIED, AND PLASTIC COMPOUND 11 IS CHARGED INTO THE MOLDING CAVITY SO THAT THE PLASTIC COMPOUND IS MADE INTO SURFACE CONTACT WITH THE CAVITY SURFACES 21, 31 WITHOUT ANY LAYER OF INTERMEDIATE AIR BETWEEN IT AND THE CAVITY SURFACES, THE MOVABLE CAVITY SURFACE 31 MOVING TO REMAIN IN CONTACT WITH THE PLASTIC COMPOUND 11 WHICH DILATES DURING HEATING, DUE TO THE DECOMPOSITION OF THE CHEMICAL FOAMING AGENT, TO ABSORBER THE DILATAT ION OF THE PLASTIC COMPOUND. / P P APPLICATION TO THE MANUFACTURE OF A PLASTIC FOAM.
机译：包含化学发泡剂的塑料化合物11，该化学发泡剂由热分解，而气体在相反的腔室表面21、31所定义的模腔中产生气体，并且该塑料化合物受到电介质加热的方式。熔化和塑化塑料化合物并分解化学发泡剂。

其中一个型腔表面31可以移动并靠近另一个型腔表面21，从而使型腔的体积各不相同，并且将塑料化合物11充入到型腔中，从而使塑料混合物制成与腔表面21、31接触的表面，且与腔表面之间没有任何中间空气层，可移动腔表面31仍与塑料复合物11保持接触，在加热过程中由于膨胀原因化学发泡剂，可吸收塑料化合物的扩散离子。

在塑料泡沫制造中的应用。

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