Invention Grant
- Patent Title: Surface type heating element having controlled oxide layer and manufacturing method thereof
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Application No.: US16898987Application Date: 2020-06-11
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Publication No.: US11832358B2Publication Date: 2023-11-28
- Inventor: Yooseok Kwon
- Applicant: LG ELECTRONICS INC.
- Applicant Address: KR Seoul
- Assignee: LG ELECTRONICS INC.
- Current Assignee: LG ELECTRONICS INC.
- Current Assignee Address: KR Seoul
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: KR 20190069422 2019.06.12
- Main IPC: H05B3/00
- IPC: H05B3/00 ; H05B3/14 ; H05B3/18 ; H05B3/28 ; H05B3/74 ; H05B3/12

Abstract:
Discussed are a surface type heating element which generates heat using electricity and a method of manufacturing the surface type heating element. The surface type heating element includes a NiCr alloy and has an oxygen content of 1 to 4 wt %, so that it can be used even at a high operating temperature of 400° C. or more, suppresses the elution of the material itself, has high fracture toughness, a low coefficient of thermal expansion, and heat resistance, and furthermore, ensures conductivity by having improved adhesive strength with respect to at least one of a substrate and an insulating layer, and controlled electrical resistivity.
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