Curing Technology of New Environmental AlMgB
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Key Words：AlMgB compound phosphate; Heat cured sand; Curing technology; Dry strength; Storage stability
Abstract：Curing technology, collapsibility and gas evolution of AlMgB compound phosphate heat cured sand were studied. It is revealed that low curing temperature is beneficial to obtain high dry strength, but humidity resistance is bad, but over high curing temperature goes against dry strength and humidity resistance. Best curing technology of this heat cured sand is under the 200 ℃ for 30 min～40 min. At the same time, this sand has good collapsibility and low gas evolution.
