Solution of flow mark and pattern of die casting aluminum alloy

Release time:

2024-02-29

Features:

There are stripes on the surface of the casting in the same direction as the flow direction of the metal, and there are obviously visible non-directional lines with different colors from the metal matrix, and there is no development trend.
Cause:

① The metal liquid entering the cavity first forms a very thin and incomplete metal layer, which is made up by the later metal liquid; ② The mold temperature is too low and the mold temperature is uneven; ③ The cross-sectional area of the inner runner is too small and the position is improper to cause splashing; ④ The pressure acting on the metal liquid is insufficient; ⑤ Pattern: excessive coating.

Processing method:

① Increase the temperature of molten metal by 620~650 ℃;② Increase the mold temperature and maintain the heat balance of 200 ~ C ~ 250 "(2; ⑧ Thicken the cross-sectional area of the runner to change the inlet position; ④ Adjust the filling speed and the stroke length of injection time; ⑤ Select appropriate coating and adjust the dosage of contrast concentration.

Solution of Surface Crack of Die Casting Aluminum Alloy

Solution to discoloration and spots of die-casting aluminum alloy

"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.

What are the causes of direct defects in aluminum die castings?

After the completion of the production of aluminum die castings will appear some small defects such as bubbles, cracks and deformation and other phenomena, affecting our use, so what is the direct cause of these defects!

China's aluminum alloy die casting production continues to rise

In recent years, the output of aluminum alloy die castings in China has been rising, and the industry has developed rapidly, which is mainly due to the continuous casting orders in China, and the casting industry in China has also begun to be recognized and praised by foreign enterprises.

China will vigorously support the development of domestic die-casting and foundry industry

China's mechanical castings are in rapid development, with the slogan of the road of innovation advocated by our country, the continuous development of casting technology, and strive to occupy the independent research and development of technology and the right to use, in order to really lay a good foundation for the development of China's casting industry.