# US 2019/0168294 A1 · Centrifugal casting apparatus for different materials

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2019/0168294 A1
- Document ID: US20190168294A1
- Status: Published application
- Kind: A1
- Application number: 16/205,823
- Filed: 2018-11-30
- Published: 2019-06-06
- Earliest claimed: 2017-12-06
- Assignees: Hyundai Motor Company; Kia Motors Corporation
- Applicants: Hyundai Motor Company; Kia Motors Corporation
- Inventors: Hyo-Moon JOO; Ji-Yong LEE; Yoon-Ki LEE; Young-Chan KIM; Cheol-Ung LEE; Jun-Min LEE; Mun-Gu KANG; Young-Rae CHO; Min-Soo KIM; Jae-Gi SIM
- Web page: https://patentgrep.com/patent/US20190168294A1

## CPC

- B22D 13/107: {Means for feeding molten metal}
- B22D 19/16: for making compound objects cast of two or more different metals, e.g. for making rolls for rolling mills (casting compound ingots B22D7/02)
- B22D: CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES (shaping of plastics or substances in a plastic state B29C; metallurgical processing, selection of substances to be added to metal C21, C22)

## Abstract

A centrifugal casting apparatus for different materials may include a mold having a shape corresponding to a shape of an outer surface of a casting to be produced, and having a cavity receiving molten metals therein, a molten metal guide inserted into the mold and configured to guide the molten metals so that the molten metals are separately injected into the mold, a guide fixing support fixing the molten metal guide to a predetermined position, and a motor configured to rotate the mold around a rotation axis.

## Claims

### Claim 1

A centrifugal casting apparatus for different materials comprising:
a mold having a cavity for receiving molten metals therein, wherein the cavity has a shape corresponding to a shape of an outer surface of a casting to be produced;
a molten metal guide inserted into the mold and configured to guide the molten metals so that the molten metals are separately injected into the mold;
a guide fixing support fixing the molten metal guide to a predetermined position; and
a motor configured to rotate the mold around a rotation axis.

### Claim 2 (depends on 1)

The centrifugal casting apparatus of claim 1, wherein the mold includes an external molten metal inlet to inject an external molten metal through the external molten metal inlet,
wherein the molten metal guide includes an internal molten metal inlet to inject an internal molten metal different from the external molten metal through the internal molten metal inlet.

### Claim 3 (depends on 2)

The centrifugal casting apparatus of claim 2, wherein the mold includes the external molten metal inlet at a top of the mold, and
wherein the molten metal guide includes the internal molten metal inlet at a top of the molten metal guide.

### Claim 4 (depends on 2)

The centrifugal casting apparatus of claim 2, wherein the molten metal guide comprises:
an upper surface extending obliquely in a radial direction from a lower end of the internal molten metal inlet; and
a side surface extending downward toward a lower surface of the molten metal guide from the upper surface.

### Claim 5 (depends on 2)

The centrifugal casting apparatus of claim 2, wherein the internal molten metal inlet of the molten metal guide has a width less than a width of the external molten metal inlet of the mold.

### Claim 6 (depends on 4)

The centrifugal casting apparatus of claim 4, wherein an upper end of the internal molten metal inlet of the molten metal guide is higher than an upper end of the external molten metal inlet of the mold.

### Claim 7 (depends on 1)

The centrifugal casting apparatus of claim 1, wherein the molten metal guide is a mesh type member.

### Claim 8 (depends on 1)

The centrifugal casting apparatus of claim 1, wherein the mold has a guide hole in a lower surface of the mold such that the molten metal guide partially passes through the guide hole,
wherein the guide fixing support surrounds inner and outer surfaces of the molten metal guide passing through the guide hole.

### Claim 9 (depends on 1)

The centrifugal casting apparatus of claim 1, wherein the guide fixing support fixes the internal molten metal inlet of the molten metal guide using a hydraulic pressure.

### Claim 10 (depends on 9)

The centrifugal casting apparatus of claim 9, wherein a lower end of the molten metal guide is apart from a lower surface of the mold.

### Claim 11 (depends on 7)

The centrifugal casting apparatus of claim 7, wherein the mold has a guide hole in a lower surface of the mold such that the molten metal guide partially passes through the guide hole,
wherein the guide fixing support surrounds inner and outer surfaces of the molten metal guide passing through the guide hole.

### Claim 12 (depends on 7)

The centrifugal casting apparatus of claim 7, wherein the guide fixing support fixes the internal molten metal inlet of the molten metal guide using a hydraulic pressure.

### Claim 13 (depends on 1)

The centrifugal casting apparatus of claim 1, wherein the molten metal guide is made of an aluminum material.