heteroporöses formwerkzeug for manufacture of moulds for forms and process to manufacture it

摘要

the invention concerns a formwerkzeug for manufacture of moulds for the production of forms, procedures and an advantageous use of the formwerkzeuges. the mass production of metal castings is today often once used sand. the economics of castings production by the sandform orthe formwerkzeug and the procedure for its production significantly influenced. the inventive formwerkzeug for production of sand moulds by chemical curing of formsandes through reaktionsgasen has a novel open, heteroporu00f6sen;. the wall has a narrow, feinporigen area which comes in contact with the forms.this area includes a grou00dfporiges stu00fctzskelett materialschlu00fcssig. this allows a large number of formwerkzeug sand with high fertigungsgeschwindigkeit at low energy and materials to produce. in particular, the use of forms and compared with previous methods reaktionsgas can be substantially reduced.at which of the formwerkzeuges, in particular by clogging of formwerkzeugwand with forms is compared with similar, known formwerkzeugen and sandform - manufacturing process is low.