Sand mold structure for thin-wall casting and casting method

• Main Authors: PENG ZHINING, LIU GUOFENG, CHEN SIMING, CHEN HONGTAO, MA BINGPING, LIU ZHIHAN
• Format: Patent
• Language: Chinese; English
• Published: 09.05.2023
• Subjects: CASTING; FOUNDRY MOULDING; PERFORMING OPERATIONS; POWDER METALLURGY; TRANSPORTING

The sand mold structure comprises an upper sand mold, a lower sand mold and a cantilever sand core arranged between the upper sand mold and the lower sand mold, and a core bar with two exposed ends is arranged in the cantilever sand core; a sand filling hole is formed between the exposed end of a core bar of the cantilever sand core and the lower sand mold, a wedge block is arranged in the sand filling hole, one side of the wedge block abuts against the exposed position of the core bar, and the other side of the wedge block is pressed on the lower sand mold. The invention further discloses a casting method using the sand mold structure for the thin-wall casting. According to the sand mold structure for the thin-wall casting disclosed by the invention, the core bar with the two exposed ends and the wedge block wedged at the exposed part are arranged in the cantilever sand core, so that the strength and the bending resistance of the cantilever sand core are effectively improved, the cantilever sand core is prev