Hot chamber die casting machine
OwnerJohn I. Harvillinventor
Life of this patent
Estimating the term…
Abstract
A hot chamber die casting machine employing a substantially horizontally arranged charging cylinder and piston. The piston employs a charging head, a sealing head and a rigid member therebetween. The device is arranged to allow access to the piston for changing rings and the like without substantial loss of material from the pot. A safety cover is provided with doors which do not remain open without external support. A cooling system is shown to reduce the temperature of the seal at the open end of the cylinder so that the material within the pot will partially or completely solidify to form an improved seal.
Claims22
A hot chamber die casting machine comprising a pot;
- a cylinder extending horizontally through said pot and having a first, open end on a first outer side of said pot;
- a piston slidably mounted in said cylinder;
- means for cooling said first, open end and no other part of said cylinder to a temperature below the melting point of metal die casting material.
A hot chamber die casting machine comprising
- a pot;
- a cylinder extending horizontally through said pot and having a first, open end on a first outer side of said pot;
- a piston slidably mounted in said cylinder;
- a coolant circulation system adjacent only said first, open end of said cylinder and no other part of said cylinder.
A hot chamber die casting machine comprising a pot;
- a cylinder extending horizontally through said pot and having a first, open end on a first outer side of said pot;
- a piston slidably mounted in said cylinder;
- means for sealing the juncture between said piston and said first, open end, said sealing means to include
- means for cooling said first, open end to a temperature below the melting point of metal die casting material.
A hot chamber die casting machine comprising a pot;
- a cylinder extending horizontally through said pot and having a first, open end on a first outer side of said pot;
- a piston slidably mounted in said cylinder;
- means for sealing the juncture between said piston and said first, open, end of said sealing means to include
- a coolant circulation system adjacent said first, open end of said cylinder.
Dependencies are inferred from the claim text.