The mold is composed of moving mold and fixed mold.

Parting surface refers to the part that can be contacted when the two are closed.According to the requirements of mold production, the parting surface of the moving and fixed mold core should be 0.15-0.35mm higher than the parting surface of the mold frame (mold frame) to prevent the parting surface from flying materials.

1.It is generally more machine problems that new mold parting surface large area and local parts of the problem of flying material

a.Clamping force is small and not locked in place.(empty lock for many times, check the locking strength)

b.Is the supercharging pressure too high?Is the trip too short?

c.Whether the holding time is too short.

d.Is it too warm? (normal position 660° ~ 680°)

e.Check die casting machine for wear of curved core (curved arm) or bushing.Is the gap too large?

f.Whether the machine wall is balanced

2.The mold will also have problems.

a.The mold is not in place. (apply red powder to the smooth and easy to check parting surface of the moving mold core, and (generally apply it to the parting surface of the mold core) after the mold locking, check whether the red powder traces of the parting material surface not applied reach the production requirements of 95% or more.

b.Die core exhaust location smaller, shorter or deeper (-0.15mm or more), easy to fly

3.Mass production (more than 25,000 times) of mold parting surface flying material (old mold)

a.Check whether the flying material position of parting surface is collapsed, the exhaust groove is too deep or there are foreign matters, such as aluminum slag is not cleaned, so that the mold can not close in place to produce flying material.

b.Check whether the height of mold frame (mold frame) and mold core parting surface is in place.

The normal closing die is: the upper and lower parting surface of the die core meets each other, and the upper and lower parting surface of the die frame has a gap of 0.3-0.7mm.

Long time production products mold deformation, die box around the edge of the upper and lower parting surface hit dead or obviously adhere to foreign bodies, so that the mold core upper and lower parting surface can not touch, can not match to the effective position, resulting in the gap will have flying edge, flying phenomenon.