What are the applications of die casting?
Release Date:2022/1/20 Number of clicks:1918 Author of the article:本站
The die cast parts can be manufactured as die cast automobile parts, die cast automobile engine pipe parts, die cast air conditioning parts, die cast gasoline engine cylinder head, die cast valve rocker arm, die cast valve support, cast power parts, die cast motor end cover, die cast shell, die cast pump shell, die cast construction parts, die cast decorative parts, die cast guardrail parts, die cast wheel and so on. With the continuous improvement of the development level of the domestic manufacturing equipment industry, the equipment level of the die casting machine is also significantly improved, the types of parts that can be manufactured are also constantly expanded, the precision of the parts and the complexity of the parts have also been greatly improved, I believe that in the near future, the die casting will better serve our production and life!
What are the common problems and solutions of die casting?
I. There are patterns on the surface of the casting and traces of metal flow. Cause:
1. The runner to the inlet of the casting is too shallow.
2, injection ratio pressure is too large, resulting in high metal flow rate, causing the splash of metal liquid.
Adjustment method:
1. Deepen the gate runner.
2, reduce the injection pressure.
2. Causes of small convex nodules on the surface of the casting:
1. Rough surface.
2. There are scratches or pits and cracks on the surface of the cavity.
Adjustment method:
1. Polishing cavity.
2, replace the cavity or repair.
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3. There are push rod impressions on the surface of the casting, and the surface is not smooth and rough. Cause:
1. The pushing rod (ejector rod) is too long;
2. The surface of the cavity is rough, or there are debris.
Adjustment method:
1. Adjust the length of the push rod.
2, polishing cavity, remove debris and oil.
4. There are cracks or local deformation on the surface of the casting. The causes are as follows:
1. Uneven distribution or insufficient quantity of ejector rod, uneven force:
2, push rod fixed plate deflection when working, resulting in a large force, a small force, so that the product deformation and crack.
3. The wall of the casting is too thin and deformed after shrinkage.
Adjustment method:
1. Increase the number of ejector rods and adjust their distribution position to balance the ejector force of casting.
2. Adjust and reinstall the push-rod fixing plate.
Five. There are pores on the surface of the die casting parts. The causes are as follows:
1. Too much lubricant.
2, exhaust e79fa5e98193e78988e69d8331333337613133 pore blocking, stomatal don't come out.
Adjustment method:
1, reasonable use of lubricants.
2, add and repair the exhaust hole, make the exhaust smooth.
Six, there are shrinkage holes on the surface of the casting: cause: the die casting process is unreasonable, the wall thickness changes too much. The metal liquid temperature is too high.
Adjustment method:
1. In the place of wall thickness, increase the process hole to make it evenly thin and thick.
2, reduce the temperature of metal liquid.
Seven, the outer contour of the casting is not clear, can not be shaped, local material shortage, cause:
1. The pressure of the die casting machine is not enough, and the injection pressure is too low.
2. The thickness of the feed port is too large;
3. Incorrect location of gate makes positive impact on metal.
