Solution to Undercasting of Die Casting Aluminum Alloy

Release time:

2024-02-29

Features:

The casting surface has underpoured parts; the contour is not clear.

Cause:

① Reasons for poor fluidity; ② The alloy liquid contains high iron content, which makes its quality poor and reduces fluidity; ③ Low pouring temperature or low mold temperature; ④ Poor filling conditions; ⑤ Too low specific pressure; ⑥ Too much gas involved, the back pressure of the cavity becomes high, and the filling is blocked; ⑦ Poor operation, excessive spraying of paint, accumulation of paint, and gas volatilization cannot be eliminated.

Processing method:

① Improve the quality of alloy liquid; ② Increase the pouring temperature or mold temperature; ③ Increase the specific pressure and filling speed; ④ Improve the diversion mode of metal liquid in the gating system, and add overflow groove and exhaust groove at the under-casting part; ⑤ Check whether the capacity of the die casting machine is sufficient.

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"Die Casting Weekly"-On June 2, 2022, Zhejiang Tianya Jiangtao Power Co., Ltd. ("Tianya Jiangtao") and Lijin Group Ningbo Lijin Technology Co., Ltd. ("Ningbo Lijin Technology") jointly held a signing ceremony for batch purchase of large die casting units and strategic cooperation. It is reported that Tianya Jiangtao will introduce 10 sets of 1250-6000T large intelligent die casting units from Ningbo Lijin Technology. Tianya Jiangtao Chairman Hu Ronghui, Vice President Zhao Hongfu, Factory Director Peng Wenjiang, Ningbo Lijin Technology General Manager Zhang Jun, Sales Director Zhou Kang and other leaders attended the signing ceremony.

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