ES398884A3 - Procedure to increase the mechanical resistance of molds and machines of foundry. (Machine-translation by Google Translate, not legally binding)
- Google Patents
Procedure to increase the mechanical resistance of molds and machines of foundry. (Machine-translation by Google Translate, not legally binding)
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CEN TECH DES INDUST FONDERIE W
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CEN TECH DES INDUST FONDERIE W
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Priority to ES398884ApriorityCriticalpatent/ES398884A3/en
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Process for increasing the mechanical strength of casting molds and cores made from a self-hardening liquid sand including a refractory sand, a binder, a binder setting agent, a liquid and a surface agent, characterized in that it is increased the density of the sand after casting it using a surface agent that generates a foam whose duration of persistence (ie the time it passes before it starts to collapse) is less than the time it passes before the sand begins set. (Machine-translation by Google Translate, not legally binding)
ES398884A1972-01-141972-01-14Procedure to increase the mechanical resistance of molds and machines of foundry. (Machine-translation by Google Translate, not legally binding)
ExpiredES398884A3
(en)
Improvement for the manufacture of molding compositions for the formation of machines and molds of foundry. (Machine-translation by Google Translate, not legally binding)