코팅 두께의 자기 측정을 위한 ASTM B530 표준 테스트 방법: Electrodeposited Nickel Coatings on Magnetic and non-magnetic Substrates includes non-destructive measurement of the thickness of electrodeposited nickel coatings on magnetic or non-magnetic substrates using a magnetic instrument.
의미와 용도

5.1 코팅의 두께는 일반적으로 성능에 중요합니다.. This magnetic method is suitable for non-destructive measurement of thickness and specification acceptance of certain nickel coatings.

5.2 The method requires that the magnetic properties of the coating and its substrate be the same as those of the reference standard used for instrument calibration adjustment.

5.3 The method should not be used to determine the thickness of self-catalyzed deposited nickel-phosphorus alloys containing more than 8% P in steel. As long as the measurements are made prior to any heat treatment, those coatings are sufficiently non-magnetic for test method B499 to be suitable for the determination.

B530-2014 “자기 방식에 의한 코팅 두께 측정의 표준 시험 방법: 자성 및 비자성 기판에 전착된 니켈 코팅”

단계 1: 범위

1.1 This test method includes non-destructive measurement of the thickness of an electrodeposited nickel coating on a magnetic or non-magnetic substrate using a magnetic instrument. 이는 장비 작동에 대한 제조업체의 지침을 보완하기 위한 것입니다., 그들을 교체하는 것이 아니라.

1.2 These instruments measure the magnetic attraction between the magnet and the coating – substrate combination (로 분류됨 “magnetic pull-off”), or the change in magnetic flux density within the probe (로 분류됨 “전자”).

1.3 For this test method, two types of coating-substrate combinations can be encountered: Type A, nickel coatings on magnetic substrates, and Type B nickel coatings on non-magnetic substrates.

1.4 The effective measurement range of instruments using the magnetic attraction principle is up to 50μm (2 밀) for type A coatings and up to 25μm (1 밀) for type B coatings. For gauges based on the principle of flux density variation, the effective range is much larger and measurements up to 1 mm (40 밀) or higher can be made on both types of coatings.

1.5 Measurements made in accordance with this test method shall comply with the requirements of ISO Standard 2361, 인쇄됨 1982.

1.6 SI 단위로 표현된 값은 표준으로 간주됩니다.. 괄호 안의 값은 참고용입니다..

1.7 이 표준은 모든 안전 문제를 해결하기 위한 것이 아닙니다., 만약에 어떠한, 그 사용과 관련된. 적절한 안전 및 보건 관행을 확립하고 사용 전에 규제 제한의 적용 가능성을 결정하는 것은 이 표준 사용자의 책임입니다..