6 Reasons of Drag Marks on Aluminum Alloy Die Castings

The application of die castings is widely used in all walks of life, and there is a huge demand in the market. However, during the production process, the problem of scratches on aluminum alloy die castings are easy to produce, and serious situations will cause scratches.

Reasons for the drag marks on aluminum alloy die castings:

1. The mold temperature is higher than 220 degrees, and castings are prone to scratches or sticky aluminum.

2. The iron composition of the aluminum alloy is less than 0.6%, and the aluminum material has an affinity with the mold, which causes the casting to be scratched or sticky.

3.  The ejection of the casting is not parallel, causing the casting to be pulled or deformed.

4.  The surface of the mold core is rough, resulting in a strain or rough surface of the casting.

5.  The draft angle of the casting core and wall is too small, which causes the casting to be scratched during the mould parting.

6. Insufficient spraying of the parting agents can also cause drag marks.

• 

  Marketing Promotion is Very Important for Aluminum Die-casting Manufacturers

  EMP Tech Co., Ltd is a professional aluminum die casting supplier, who has a leading position in terms of the technology and craft of foundry aluminum casting and has cultivated a group of technical b...
• 

  The Chinese Die Casting Industry

  In the year 2015, China produced 45.6 million metric tons of castings in total, followed by India (10.8), the US (10.4), Japan (5.4), and Germany (5.3). With 45 % of the total world casting production...
• 

  The Future of Die Casting

  Due to the discussions about the future of the combustion engine in general and the diesel engine in particular, many die casting foundries have to adjust to profound structural changes on the demand ...