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Patent Searching and Data


Title:
APPARATUS FOR AUTOMATICALLY SUPPLYING MOLTEN LIGHT METAL
Document Type and Number:
Japanese Patent JP2002336947
Kind Code:
A
Abstract:

To solve the problem that cut-off of molten metal is worsened when a part of the molten metal is overflowed caused by rise in the surface of the molten metal left in a molten metal supplying pipe after supplying the molten metal in a pot into the molten metal supplying pipe with a reciprocating pump, and to prevent the occurrence of a malfunction caused by sticking of oxide to a check valve at the discharge side of the reciprocating pump.

The check valve 5 at the discharge side of the reciprocating pump 4 for supplying the molten metal 2 in the pot 1 into the molten metal supplying pipe 3, is disposed in a pump head passage 8. The valve element 11 of the check valve 5 is composed of a ball or a poppet held in a closing state not with the energizing force of a spring, etc., but with the pressure of the molten metal in the pump head passage 8 pumped up to the higher position than the surface of the molten metal 2 in the pot 11 or the molten metal left in the molten metal supplying pipe 13.


Inventors:
Kai, Minoru
Application Number:
JP2001000142853
Publication Date:
November 26, 2002
Filing Date:
May 14, 2001
Export Citation:
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Assignee:
KAI MINORU
International Classes:
F04B53/10; B22D17/02; B22D17/30; B22D35/00; (IPC1-7): B22D17/02; B22D17/30; B22D35/00; F04B53/10
Attorney, Agent or Firm:
澤野 勝文 (外1名)