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Aluminum billet hot top casting explosion solution

Aluminum billet hot top casting explosion solution
 
For aluminum billet hot top casting, if there is any explosion, will mean that there must be aluminum with water. There is a trouble shooting method for your reference, limited for hot top casting only:
1. After stop the casting, did you disassembled any die? If yes, please check:
1). there are a small holes on the die, please check if they are block. Attached picture for your reference.
2) Then check the small holes of the up ring and down right whether block or not, and check the sealing ring if in the right position, if not in the right position, they will make the thimble wet.
 
2. Before casting, dry the table, if you use the table everyday, then no need. When drying, please be careful, dont damage the sealing ring can not stand high temperature.
1) When the dummy block head matches the die, the guide pillar get 1~2mm space. Dont take the guide ring, every corner must be same and make sure the level.
2) Before the aluminum liquid flow into the table, open a little water, control it by manual. (If automatic, the start up water may be too large)
3) Before the aluminum liquid flow into the table, the dummy block head should be dry.
4) After aluminum liquid flow into the table and cover all of the thimble, then start the normal flow rate water. 
5) During the table down, if some bubble (aluminum liquid upturning), turn small the water. Normal will turn up.
 
3. Finish
No need to turn off the water, Just operate as usual. When the aluminum billet leaves the die, then turn off the water. they are block. Attached the first picture for your reference.
 
Aluminum melting and casting is a very high temperature work, hope that:
1. Wear a good safety supplies to posts: mask, shoes, high temperature, high temperature gloves, cotton hat, cotton socks, thick denim overalls. 
2. Must be provided and operating regulations plant operation. 
3. During casting process, must have at least three people were present custody.

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