HUT51533A - Method and casting die for producing plastic casts without gas hole accurate to dimension
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Method and casting die for producing plastic casts without gas hole accurate to dimension
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Publication number
HUT51533A
HUT51533AHU232088AHU232088AHUT51533AHU T51533 AHUT51533 AHU T51533AHU 232088 AHU232088 AHU 232088AHU 232088 AHU232088 AHU 232088AHU T51533 AHUT51533 AHU T51533A
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Application filed by Villamos Ipari Kutato IntezetfiledCriticalVillamos Ipari Kutato Intezet
Priority to HU232088ApriorityCriticalpatent/HUT51533A/en
Publication of HUT51533ApublicationCriticalpatent/HUT51533A/en
Casting pattern is vented through metallic, ceramic or plastic based filter materials or their combination, with pores of 0.3-50 microns. Thee size of pores may be regulated in some cases. The plastic material used for the casting produces a wetting circumferential angle greater than 50 deg, depending on the conditions of processing. Thee wetting circumferential angle is produced by the filter material itself or by suitable treatment of it. - The casting pattern is formed so that: the filter material is located on its upper part, or on the planes of split, so that its ability to change position or shape is retained in some cases. Venting the pattern is demonstrated by the casting of insulation bodies contg highly tensioned, hollow, fibre reinforced cores.
HU232088A1988-05-091988-05-09Method and casting die for producing plastic casts without gas hole accurate to dimension
HUT51533A
(en)