Causes And Solutions For The Problem Of Aluminum Alloy Die-casting Parts

- Sep 11, 2019-

Aluminum alloy die-casting parts can be manufactured as die-casting auto parts, die-casting automotive engine fittings, die-casting air-conditioning fittings, die-casting gasoline engine cylinder heads, die-casting valve rocker arms, die-casting valve bearings, cast electric fittings, die-casting motor end caps, die-cast housings, Die-casting pump housing, die-casting construction fittings, die-casting decorative fittings, die-casting railing fittings, die-casting wheels, etc. ....


Aluminum alloy die-casting parts can be manufactured as die-casting auto parts, die-casting automotive engine fittings, die-casting air-conditioning fittings, die-casting gasoline engine cylinder heads, die-casting valve rocker arms, die-casting valve bearings, cast electric fittings, die-casting motor end caps, die-cast housings, Die-casting pump housing, die-casting construction fittings, die-casting decorative fittings, die-casting railing fittings, die-casting wheels, etc. With the continuous improvement of the development level of the domestic manufacturing equipment industry, the equipment level of the die-casting machine has also been significantly improved, and the types of parts that can be manufactured have been continuously expanded. The precision of the parts that are die-cast and the complexity of the parts have also been greatly improved. .


The problem of scratching of aluminum alloy die castings is inevitable. The characteristic is that along the direction of the mold release, due to the adhesion of the metal, the inclination of the mold is too small to cause a scratch on the surface of the casting, and when it is severe, it becomes a strained surface.


cause:


1. Alloy adhesion mold.


2. The iron content in the aluminum alloy is less than 0.6%.


3. The casting is deflected or the core axis is skewed.


4. There are crush marks on the core and the wall.


5. The surface of the wall is rough.


6. The casting inclination of the core and the profile wall is too small or the slope is reversed.


7, the paint is often not sprayed.


Remedy:


1. Correct the mold to ensure the manufacturing slope.


2, lighting indentation.


3. Reasonably design the gating system to avoid the metal flow to the core and the wall, and to reduce the filling speed appropriately.


4. Correct the mold structure.


5. Polish the surface.


6, the coating amount is thin and uniform, can not leak spray paint.


7. Appropriately increase the iron content to 0.6~0.8%. Aluminum alloy die-casting parts can be manufactured as die-casting auto parts, die-casting automobile engine pipe fittings, die-casting air conditioning parts, die-casting gasoline engine cylinder heads, die-casting valve rocker arms, die-casting valve branches