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Priority to ES1976219274UpriorityCriticalpatent/ES219274Y/en
Publication of ES219274UpublicationCriticalpatent/ES219274U/en
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Publication of ES219274YpublicationCriticalpatent/ES219274Y/en
Device for shell molding, which is integrated into a machine where the plate-model is mounted on a support able to perform vertical reciprocating movements in alignment with the molding chamber on which the corresponding layer of sand stored in a hopper is deposited. In this case, it is essentially characterized in that the countermould of the aforementioned molding chamber, as the receiving element of the sand layer, is constituted by a membrane of elastic nature capable of uniformly adapting to the model plate under of a pneumatic pressure created inside this molding chamber between said membrane and the base plate of said chamber; having provided that the support and therefore the model plate is subjected, during the shaping of the shell, to an effect the vibration so that the sand lodged between the repeated membrane and said model plate penetrates in all the angles of the latter ; with the particularity the entire surface of the sand or shell mold to be exposed to the controlled influence of a hardening gas or gaseous catalyst. (Machine-translation by Google Translate, not legally binding)
ES1976219274U1976-03-021976-03-02
DEVICE FOR MOLDING IN CASCARA.
ExpiredES219274Y
(en)
Procedure for the manufacture of molded parts provided with a layer cover of artificial material (Machine-translation by Google Translate, not legally binding)
A device for carrying collar molds with hardened moldeable resin, powered under pressure. (Machine-translation by Google Translate, not legally binding)