Induction burner cooling systems and methods
US-2017257913-A1 · Sep 7, 2017 · US
Method of producing a high-frequency heat treatment coil
US9445461B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9445461-B2 |
| Application number | US-201214350638-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 2, 2012 |
| Priority date | Nov 4, 2011 |
| Publication date | Sep 13, 2016 |
| Grant date | Sep 13, 2016 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A method is provided to produce a high-frequency heat treatment coil including a heating section for heating a heat treatment portion of an outer joint member for a constant velocity universal joint. The heating section is formed by machining in an integrated manner, and is joined to another section to complete the high-frequency heat treatment coil.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method of producing a high-frequency heat treatment coil including a heating section for heating a heat treatment portion of an outer joint member for a constant velocity universal joint, wherein: the heating section comprises a coil body in which a current passage through which a high-frequency current flows is formed, the coil body being formed by machining in an integrated manner; a cover member is joined to the coil body to form a cooling water passage; the current passage of the coil body comprises two passages of a first circumferential passage and a second circumferential passage, and a connecting section between the first circumferential passage and the second circumferential passage is inclined at a predetermined angle with respect to a current flow direction; and the method comprises: forming the heating section comprising the coil body by machining in the integrated manner; and joining the cover member serving as another section to the coil body to form the cooling water passage, to thereby complete the high-frequency heat treatment coil. 2. A method of producing a high-frequency heat treatment coil including a heating section for heating a heat treatment portion of an outer joint member for a constant velocity universal joint, wherein: the heating section comprises a coil body in which a current passage through which a high-frequency current flows is formed, the coil body being formed by machining in an integrated manner; a cover member is joined to the coil body to form a cooling water passage; a current flowing through a joining section between the cover member and the coil body is set to a minute current, the joining section being disposed at a position independent of contributing to heating; the current passage of the coil body comprises two passages of a first circumferential passage and a second circumferential passage, and a connecting section between the first circumferential passage and the second circumferential passage is inclined at a predetermined angle with respect to a current flow direction; and the method comprises: forming the heating section comprising the coil body by machining in the integrated manner; and joining the cover member serving as another section to the coil body to form the cooling water passage, to thereby complete the high-frequency heat treatment coil.
Assignees
Inventors
Classifications
for local heating of metal pieces · CPC title
Electromagnet, transformer or inductor · CPC title
Induction heating · CPC title
by electric induction · CPC title
- H05B6/42Primary
Cooling of coils · CPC title
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Frequently asked questions
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- What does patent US9445461B2 cover?
- A method is provided to produce a high-frequency heat treatment coil including a heating section for heating a heat treatment portion of an outer joint member for a constant velocity universal joint. The heating section is formed by machining in an integrated manner, and is joined to another section to complete the high-frequency heat treatment coil.
- Who is the assignee on this patent?
- Ntn Toyo Bearing Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H05B6/42. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Sep 13 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). 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).