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Casting--automobile data recorder top cover

September 10, 2024
1.Casting information
Name: automobile data recorder top cover
Casting requirement:surface requirement
Casting process: 
Die Casting machine tonnage:280T
punch dia(mm):50
2. Casting problem
cold shut on surface,see the defects picture
3.Casting pictures
pic 1 front top viewCasting pictures
4. Casting analysis
The casting defect position is a circular tube ,which is enclosed by the slide. Due to the high appearance requirements, it is not allowed to have any trace of the mold closing line.
Due to the deep blind hole inside the slider, the cold material can not be discharged completely after the metal flow is filled, and the residual on the product surface leads to defects.
5. Improving measures
1. the main runner is deepened and the cross-sectional area of expanded to 1.1 times that of the two cross runner,that is to avoid gas involvement and pressure loss in the runner.
2. Add an auxiliary runner to drain to the bottom of the slide  to open a gate, the blind hole area of the slide block becomes the filling front end, the metal flow passes through the defective area, and the cold material is effectively discharged into the slag ,so to achieve the purpose of improvement.
Improving measures
6.Tips
For the filling dead area
filling dead area is the bottom end place which can not be well discharged,so try to let metal liquid flow to this position as much as possible to improve the defects.
Tips
Contact Us

Author:

Mr. Logan

Phone/WhatsApp:

8618157495020

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