Structure for producing casting

Patent metadata

Field	Value
Publication number	US-2025091119-A1
Application number	US-202418966316-A
Country	US
Kind code	A1
Filing date	Dec 3, 2024
Priority date	Sep 19, 2023
Publication date	Mar 20, 2025
Grant date	—

Abstract

A cylindrical structure for producing a casting can comprise: a cylindrical main body having a body part and a female joint consecutively connected to the body part and having an inner diameter larger than an outer diameter of the body part. A body inside cover layer can cover the inner face of the body part and/or an outside cover layer can cover an outer face of the female joint

First claim

1 . A cylindrical structure for producing a casting comprising a cylindrical main body, wherein
the cylindrical main body includes:
a body part, and
a female joint consecutively connected to the body part and having an inner diameter equal to or larger than an outer diameter of the body part, and
the cylindrical structure comprises:
a body inside cover layer covering an inner face of the body part of the cylindrical main body, and
an outside cover layer covering an outer face of the female joint of the cylindrical main body.

2 . The structure for producing a casting according to claim 1 , wherein the outside cover layer covers an entire region of the outer face of the female joint.

3 . The structure for producing a casting according to claim 1 , further comprising:
a female joint inside cover layer covering an inner face of the female joint.

4 . The structure for producing a casting according to claim 3 , wherein the female joint inside cover layer and the body inside cover layer are continuous.

5 . The structure for producing a casting according to claim 3 , wherein the female joint inside cover layer extends to the inner face of the body part, and partially overlaps with the body inside cover layer.

6 . The structure for producing a casting according to claim 5 , wherein
the female joint inside cover layer is arranged on an inner side relative to the body inside cover layer, in a radial direction of the structure for producing a casting in a portion where the female joint inside cover layer and the body inside cover layer overlap with each other, and/or the portion, where the female joint inside cover layer and the body inside cover layer overlap with each other, has a thickness larger than both thicknesses of a portion having a largest thickness in the female joint inside cover layer and a portion having a largest thickness in the body inside cover layer.

7 . The structure for producing a casting according to claim 3 ,
wherein the female joint inside cover layer covers an entire region of the inner face of the female joint, and the body inside cover layer covers an entire region of the inner face of the body part.

8 . The structure for producing a casting according to claim 1 , further comprising: an end face cover covering an end face of the female joint.

9 . The structure for producing a casting according to claim 1 , further comprising:
a female joint inside cover layer covering an inner face of the female joint; and an end face cover covering an end face of the female joint, wherein the end face cover and the female joint inside cover layer are continuous.

10 . The structure for producing a casting according to claim 1 , wherein the outside cover layer extends to the inner face of the body part through an end face of the female joint.

11 . The structure for producing a casting according to claim 1 , wherein
an end part of the structure for producing a casting other than the female joint has an outer diameter equal to or smaller than the inner diameter of the female joint, an outer diameter of the female joint is the largest among outer diameters of the structure for producing the casting, and
the inner diameter of the female joint is the largest among inner diameters of the structure for producing the casting.

12 . A cylindrical structure for producing a casting comprising a cylindrical main body, wherein
the cylindrical main body includes:
a body part, and
a male joint in one end part of the body part,
the male joint is to be internally joined to a female joint, the male joint has an outer diameter equal to or smaller than an inner diameter of the female joint, and
the cylindrical structure comprises:
a body inside cover layer covering an inner face of the body part of the cylindrical main body, and
an outside cover layer covering an outer face of the male joint of the cylindrical body.

13 . The structure for producing a casting according to claim 12 , further comprising an end face cover covering an end face of the male joint.

14 . The structure for producing a casting according to claim 13 , wherein the end face cover and the outside cover layer are continuous.

15 . The structure for producing a casting according to claim 13 , wherein
the main body has a female joint consecutively connected to the body part and having an inner diameter equal to or larger than an outer diameter of the body part, the outer diameter of the male joint is equal to or smaller than the inner diameter of the female joint consecutively connected to the body part, an outer diameter of the female joint is the largest among outer diameters of the structure for producing the casting, and
the inner diameter of the female joint is the largest among inner diameters of the structure for producing the casting.

16 . The structure for producing a casting according to claim 13 , wherein the body inside cover layer covers an entire region of the inner face of the body part.

17 . A method for producing a cylindrical structure for producing a casting, wherein
the structure for producing a casting comprises a cylindrical main body, the cylindrical main body includes:
a body part, and
a female joint consecutively connected to the body part in an axial direction,
the female joint has an inner diameter equal to or larger than an outer diameter of the body part, and the method comprises:
applying a first coating composition to an inner face of the body part to form a body inside cover layer covering the inner face of the body part; and
applying a second coating composition to an outer face of the female joint over an entire circumference of the female joint to form an outside cover layer covering the outer face of the female joint.

18 . The method for producing a structure for producing a casting according to claim 17 , wherein
the first coating composition is applied by pouring the first coating composition into the body part from an end part side of the body part other than an end part on a side of the female joint, and the second coating composition is applied to an inner face of the female joint over the entire circumference of the female joint to form a female joint inside cover layer covering the inner face of the female joint.

19 . The method for producing a structure for producing a casting according to claim 18 , wherein the second coating composition is applied by dipping the female joint in the second coating composition.

20 . The method for producing a structure for producing a casting according to claim 17 , wherein the second coating composition is applied after the application of the first coating composition.

Assignees

• Kao Corp

Inventors

• Kibe Yoshiyuki
• Ikenaga Haruki
• Mashiko Yuki

Classifications

• B22C3/00

  Selection of compositions for coating the surfaces of moulds, cores, or patterns · CPC title

• B22C9/082 Primary

  Sprues, pouring cups · CPC title

• B22D19/16

  for making compound objects cast of two or more different metals, e.g. for making rolls for rolling mills (casting compound ingots B22D7/02) · CPC title

• B22D23/04

  Casting by dipping (hot-dipping or immersion processes for applying coating material in the molten state without affecting the shape C23C2/00) · CPC title

• B22C9/24 Primary

  for hollow articles · CPC title