Casting bentonite

Bentonite clay is applied in casting, mainly in clay bonded sand, since bentonite clay has features such as strong binding property, high plasticity, good membrane removal property, high air permeability and stable physical and chemical properties under high temperature wet condition. Nowadays, along with rapid development of various chemical bonded sands, the clay wet-type sand is still the foremost modeling material, whose application scope is wide, consumption is huge, and other materials cannot compare with it. New modern techniques such as high pressure modeling, injecting pressure modeling, air blast modeling, static pressure modeling and non-shock vacuum pressure adding modeling, use the clay wet-type sand as premise, and the clay wet-type sand has extremely strong ability in suiting modeling conditions.