Method for thermally treating chromium steels
US-2026043122-A1 · Feb 12, 2026 · US
Heat treatment apparatus
US2017073786A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2017073786-A1 |
| Application number | US-201615343355-A |
| Country | US |
| Kind code | A1 |
| Filing date | Nov 4, 2016 |
| Priority date | Jul 7, 2014 |
| Publication date | Mar 16, 2017 |
| Grant date | — |
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- Title
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- Abstract
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Abstract
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A heat treatment apparatus includes: a heat treatment chamber that performs heating treatment for a treatment object thereinside; and a thermal insulator disposed inside the heat treatment chamber and surrounding a receiving area for the treatment object. The heat treatment chamber includes a side wall portion and a lid portion configured to be attachable to and detachable from the side wall portion. The thermal insulator includes a ceiling disposed on the inside of the lid portion. The ceiling includes a thermal insulator lid that is at least part of the ceiling and is united to the lid portion.
First claim
Opening claim text (preview).
1 . A heat treatment apparatus comprising: a heat treatment chamber that performs heating treatment for a treatment object thereinside; and a thermal insulator disposed inside the heat treatment chamber and surrounding a receiving area for the treatment object; wherein the heat treatment chamber includes a heat treatment chamber body and a lid portion configured to be attachable to and detachable from the heat treatment chamber body, wherein the thermal insulator includes a thermal insulator body and a thermal insulator lid configured to be attachable to and detachable from the thermal insulator body, and wherein the thermal insulator lid is united to the lid portion. 2 . The heat treatment apparatus according to claim 1 , wherein part of the heat treatment chamber body is a side wall portion of the heat treatment chamber, wherein the lid portion is configured to be attachable to and detachable from an upper part of the side wall portion, wherein the thermal insulator includes a ceiling disposed on the inside of the lid portion of the heat treatment chamber, and wherein the thermal insulator lid is at least part of the ceiling. 3 . The heat treatment apparatus according to Claim I, wherein the thermal insulator lid is formed into a plate shape whose edge surface has a tapered surface, and wherein the thermal insulator body includes a frame having a tapered surface that contacts the edge surface of the thermal insulator lid so as to overlap the edge surface. 4 . The heat treatment apparatus according to claim 2 , wherein the thermal insulator lid is formed into a plate shape whose edge surface has a tapered surface, and wherein the ceiling includes a frame having a tapered surface that contacts the edge surface of the thermal insulator lid so as to overlap the edge surface. 5 . The heat treatment apparatus according to claim 3 , wherein the thermal insulator lid is formed into a circular plate shape whose circumferential surface has the tapered surface. 6 . The heat treatment apparatus according to claim 4 , wherein the thermal insulator lid is formed into a circular plate shape whose circumferential surface has the tapered surface. 7 . The heat treatment apparatus according to claims 1 , further comprising a heater disposed inside the heat treatment chamber and configured to be attachable to and detachable from the lid portion and the thermal insulator lid. 8 . The heat treatment apparatus according to claims 2 , further comprising a heater disposed inside the heat treatment chamber and configured to be attachable to and detachable from the lid portion and the thermal insulator lid. 9 . The heat treatment apparatus according to claims 3 , further comprising a heater disposed inside the heat treatment chamber and configured to be attachable to and detachable from the lid portion and the thermal insulator lid. 10 . The heat treatment apparatus according to claims 4 , further comprising a heater disposed inside the heat treatment chamber and configured to be attachable to and detachable from the lid portion and the thermal insulator lid. 11 . The heat treatment apparatus according to claims 5 , further comprising a heater disposed inside the heat treatment chamber and configured to be attachable to and detachable from the lid portion and the thermal insulator lid. 12 . The heat treatment apparatus according to claims 6 , further comprising a heater disposed inside the heat treatment chamber and configured to be attachable to and detachable from the lid portion and the thermal insulator lid.
Assignees
Inventors
Classifications
Removable covers · CPC title
Arrangements of heating devices · CPC title
Linings or walls · CPC title
Arrangements of linings · CPC title
- C21D9/0043Primary
Muffle furnaces; Retort furnaces · CPC title
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Frequently asked questions
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- What does patent US2017073786A1 cover?
- A heat treatment apparatus includes: a heat treatment chamber that performs heating treatment for a treatment object thereinside; and a thermal insulator disposed inside the heat treatment chamber and surrounding a receiving area for the treatment object. The heat treatment chamber includes a side wall portion and a lid portion configured to be attachable to and detachable from the side wall po…
- Who is the assignee on this patent?
- Ihi Corp, Ihi Machinery & Furnace Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification C21D9/0043. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Thu Mar 16 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).