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Causes and solutions for air holes appearing in die-cast parts
Zinc die casting is a casting process that involves rapidly filling a mold cavity with molten zinc under high pressure. The time it takes for the molten zinc to fill the die casting mold cavity is extremely short, generally a few hundredths or thousandths of a second. The pores formed during the die casting process have smooth surfaces...
Ningbo Xinghuang Optoelectronics Co., Ltd. is a manufacturing enterprise specializing in the production of aluminum and zinc die castings, aluminum profiles, and stamped parts. Main products include security accessories and lighting accessories. In terms of production equipment, the company has 29 die-casting machines (160T-630T), 20 CNC lathes, 43 CNC machines, 4 wire-cutting machines, 24 punching machines (200T-700T), 3 hydraulic presses, as well as drilling and tapping machines, shot blasting machines, vibratory polishing machines, and other various processing equipment; one automatic cleaning line for pretreatment; three automatic spray painting lines; three assembly lines; and capabilities including dispensing and screen printing.
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Causes and solutions for air holes appearing in die-cast parts
Zinc die casting is a casting process that rapidly fills a mold cavity with molten zinc under high pressure. The time it takes for the molten zinc to fill the die casting mold cavity is extremely short, generally a few hundredths or thousandths of a second. The pores formed during the die casting process have smooth surfaces...
What are some common surface defects in die castings?
Cold shut, also known as cold joint or cold weld, refers to the phenomenon where metal streams with lower temperatures meet and form a gap without fusion. This gap appears as an irregular line, and it can be either penetrating or non-penetrating. Under external force, it tends to expand.