Process for casting a plate grid for a lead--acid storage battery
Patent
·
OSTI ID:7219005
A process for casting a plate grid for a lead--acid storage battery comprises the steps of preparing a casting die assembly including two interengagable die halves between which is formed a casting cavity to cast a plate grid and pouring a molten metal of lead or lead alloy into the casting cavity to form the plate grid therein. Any air in the casting cavity is vented through gaps between the die halves and then through a narrow air passage in at least one venting member placed in either of the die halves so that the venting member is flush with the casting surface of the corresponding die half. The venting member at the top surface has cavity-forming portions operatively associated with the die halves. 9 figures.
- Assignee:
- Shin-Kobe Electric Machinery Co., Ltd.
- Patent Number(s):
- US 4034793
- OSTI ID:
- 7219005
- Country of Publication:
- United States
- Language:
- English
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