KR100971524B1 - 법랑용 강판의 품질 측정 방법 및 장치 - Google Patents
법랑용 강판의 품질 측정 방법 및 장치 Download PDFInfo
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- KR100971524B1 KR100971524B1 KR1020070071325A KR20070071325A KR100971524B1 KR 100971524 B1 KR100971524 B1 KR 100971524B1 KR 1020070071325 A KR1020070071325 A KR 1020070071325A KR 20070071325 A KR20070071325 A KR 20070071325A KR 100971524 B1 KR100971524 B1 KR 100971524B1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/04—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating resistance
- G01N27/20—Investigating the presence of flaws
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/28—Electrolytic cell components
- G01N27/30—Electrodes, e.g. test electrodes; Half-cells
- G01N27/327—Biochemical electrodes, e.g. electrical or mechanical details for in vitro measurements
- G01N27/3271—Amperometric enzyme electrodes for analytes in body fluids, e.g. glucose in blood
- G01N27/3273—Devices therefor, e.g. test element readers, circuitry
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Abstract
Description
강판의 종류 | 강판의 두께(mm) | 도막두께(㎛) | 인가전류(A) | 파편(피쉬 발생시간) | |
실험1 | 법랑용 탈탄 강판(SPP) | 0.7 | 80~120 | 4.5 | 8분 58초 |
실험2 | 법랑용 탈탄 강판(SPP) | 0.7 | 80~120 | 4.5 | 9분 17초 |
실험3 | 법랑용 탈탄 강판(SPP) | 0.7 | 80~120 | 4.5 | 9분 01초 |
실험4 | 법랑용 탈탄 강판(SPP) | 0.7 | 80~120 | 4.5 | 8분 32초 |
강판의 종류 | 강판의 두께(mm) | 도막두께(㎛) | 인가전류(A) | 파편(피쉬 발생시간) | |
실험1 | 냉간압연강판(SCP) | 0.7 | 80~120 | 4.5 | 4분 32초 |
실험2 | 냉간압연강판(SCP) | 0.7 | 80~120 | 4.5 | 5분 17초 |
실험3 | 냉간압연강판(SCP) | 0.7 | 80~120 | 4.5 | 3분 56초 |
실험4 | 냉간압연강판(SCP) | 0.7 | 80~120 | 4.5 | 4분 04초 |
Claims (8)
- a) 법랑용 강판의 한쪽면에 유약(Frit)을 시유하고, 건조 및 소성하여 법랑유약이 코팅된 시험편을 준비하는 단계;b) 상기 시험편의 법랑유약이 코팅되지 않은 면을, 전극 및 전해액 공급관을 포함하며 스탠딩 상태의 시험편에 의하여 밀봉되도록 개구된 수소발생 전해조의 개구부에 밀봉하여 고정시키는 단계;c) 상기 수소발생 전해조에 전해액을 공급하고, 전원공급수단의 음극과 상기 시험편을 연결하고, 양극과 상기 전극을 연결하여 전류를 공급함으로써 수소를 분해하는 단계;d) 시험편의 법랑유약 코팅 면을 관찰하면서 전류를 공급한 시점부터 파편(피쉬 스케일)이 발생된 시점까지의 시간을 측정하는 단계를 포함하는 법랑용 강판의 품질 측정 방법.
- 청구항 1에 있어서, 상기 시험편의 법랑유약이 코팅되지 않은 면을 수소발생 전해조의 개구부에 밀봉시키기 전에 그 면을 샌딩처리로 전처리하는 것을 특징으로 하는 법랑용 강판의 품질 측정 방법.
- 청구항 1에 있어서, 상기 전해액이 H2SO4 2~20중량%, As2O3 0.02~4중량%, HgCl2 0.01~1중량%, 증류수 75~97.97중량%를 포함하는 것을 특징으로 하는 법랑용 강판의 품질 측정 방법.
- 청구항 1에 있어서, 상기 전원공급수단으로부터 인가되는 전류가 3.5~4.5A인 것을 특징으로 하는 법랑용 강판의 품질 측정 방법.
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KR1020070071325A KR100971524B1 (ko) | 2007-07-16 | 2007-07-16 | 법랑용 강판의 품질 측정 방법 및 장치 |
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KR1020070071325A KR100971524B1 (ko) | 2007-07-16 | 2007-07-16 | 법랑용 강판의 품질 측정 방법 및 장치 |
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KR20090008038A KR20090008038A (ko) | 2009-01-21 |
KR100971524B1 true KR100971524B1 (ko) | 2010-07-21 |
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KR1020070071325A KR100971524B1 (ko) | 2007-07-16 | 2007-07-16 | 법랑용 강판의 품질 측정 방법 및 장치 |
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Families Citing this family (1)
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CN102087262B (zh) * | 2010-07-08 | 2014-04-16 | 石家庄正中科技有限公司 | 一种检测搪瓷鳞爆的装置和方法 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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KR890000079A (ko) * | 1987-06-20 | 1989-03-11 | 우메모또 요시마사 | 리포소옴의 제조방법 |
KR0149691B1 (ko) * | 1994-12-02 | 1998-12-01 | 김만제 | 법랑강판용 수소투과시간 측정장치 |
JP2004093410A (ja) | 2002-08-30 | 2004-03-25 | Masahiko Morinaga | 金属の水素透過能測定方法及びその装置 |
KR100547482B1 (ko) | 2001-12-21 | 2006-01-31 | 주식회사 포스코 | 강판 수소투과 시험장치 |
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Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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KR890000079A (ko) * | 1987-06-20 | 1989-03-11 | 우메모또 요시마사 | 리포소옴의 제조방법 |
KR0149691B1 (ko) * | 1994-12-02 | 1998-12-01 | 김만제 | 법랑강판용 수소투과시간 측정장치 |
KR100547482B1 (ko) | 2001-12-21 | 2006-01-31 | 주식회사 포스코 | 강판 수소투과 시험장치 |
JP2004093410A (ja) | 2002-08-30 | 2004-03-25 | Masahiko Morinaga | 金属の水素透過能測定方法及びその装置 |
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