Casting device

Patent metadata

Field	Value
Publication number	US-11040392-B2
Application number	US-202017011565-A
Country	US
Kind code	B2
Filing date	Sep 3, 2020
Priority date	Nov 15, 2019
Publication date	Jun 22, 2021
Grant date	Jun 22, 2021

Abstract

A casting device includes a mold having a cavity, a supply path that is connected to a gate of the cavity and configured to supply a molten metal to the supply path, and a gas flow path that is connected to the supply path and configured to supply a gas to the supply path. In the casting device, a molten metal is atomized by causing the gas supplied from the gas flow path to collide with the molten metal passing through the supply path, and the atomized molten metal is supplied to the cavity.

First claim

What is claimed is:

1. A casting device, comprising:
a mold having a cavity;
a supply path that is connected to a gate of the cavity and configured to supply a molten metal to the cavity; and
a gas flow path that is connected to the supply path and configured to supply a gas to the supply path, wherein the casting device is configured so that
the molten metal is atomized by causing the gas supplied from the gas flow path to collide with the molten metal passing through the supply path, and the molten metal that is atomized is supplied to the cavity.

2. The casting device according to claim 1 , further comprising a molten metal supply portion that is connected to the supply path and configured to supply the molten metal to the supply path, wherein the molten metal supply portion is configured such that a sectional area of the molten metal supply portion is smaller than a sectional area of the supply path at a portion at which the molten metal supply portion is connected to the supply path.

3. The casting device according to claim 1 , wherein the gas flow path is disposed such that a direction in which the gas is supplied to the supply path forms an acute angle with respect to a direction in which the molten metal flows through the supply path.

4. The casting device according to claim 3 , wherein:
a sectional shape of the supply path is circular;
a plurality of the gas flow paths is connected to a periphery of the supply path; and
the gas flow paths are each disposed such that the direction in which the gas is supplied to the supply path is deviated from a central axis of the supply path when viewed in the direction in which the molten metal flows through the supply path.

5. The casting device according to claim 1 , wherein:
a first end of the gas flow path is connected to the supply path;
a second end of the gas flow path is connected to the cavity; and
the gas is supplied from the cavity to the supply path through the gas flow path.

6. The casting device according to claim 1 , wherein:
the gas flow path includes a first gas flow path and a second gas flow path;
the first gas flow path is connected to the supply path and configured to supply a first gas to the supply path; and
a first end of the second gas flow path is connected to the supply path and a second end of the second gas flow path is connected to the cavity such that the gas is supplied from the cavity to the supply path through the second gas flow path.

Assignees

• Toyota Motor Co Ltd

Inventors

• Abe Yoshikazu
• Fujita Takehisa

Classifications

• B22D17/2015 Primary

  Means for forcing the molten metal into the die (for plastics B29C45/46) · CPC title

• B22D23/003

  Moulding by spraying metal on a surface · CPC title

• B22C9/06 Primary

  Permanent moulds for shaped castings (moulds for ingots B22D7/06) · CPC title

• B22C9/08 Primary

  Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates · CPC title

• B22C9/108 Primary

  Installation of cores · CPC title