Pump with porus ceramic tube
AssigneeToshiba Kikai Kabushiki Kaisha
InventorsYoshizo Komiyama, Hiromi Nakamura, Hiroaki Abe
Life of this patent
Estimating the term…
Abstract
In a pump for use in a hot chamber type die casting machine wherein corrosive molten metal particularly aluminum or alloys thereof is injected into a metal mould through a goose neck shaped passage, a porous ceramic tube having a porosity of 10 to 40% and acting as the goose neck shaped passage is cast in the main body of the pump. The porous ceramic tube comprises sintered zircon or porous graphite.
Claims13
In a pump for use in a hot chamber type die casting machine of the type wherein the cylinder of the pump is immersed in molten metal and the molten metal in the cylinder is injected into a metal mould by a plunger operating in the cylinder through a main body constituting a goose neck shaped passage, the improvment which comprises a ceramic tube which is porous to molten metal which is cast in said main body of said pump and constitutes said goose neck shaped passage.
Dependencies are inferred from the claim text.