GB/T 8754-2022 in English

VALID

Anodic oxidation coatings and organic polymer coatings on aluminium and aluminium alloys—Determination of electrical insulation

Issued on:2022-03-09
Implemented on:2022-10-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $180.00
$175.00

Standard No:	GB/T 8754-2022
Document status:	VALID
Title in English:	Anodic oxidation coatings and organic polymer coatings on aluminium and aluminium alloys—Determination of electrical insulation
Title in Chinese:	铝及铝合金阳极氧化膜及有机聚合物膜绝缘性的测定
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2022-03-09
Implemented on:	2022-10-01
Superseding:	GB/T 8754-2006 Anodizing of aluminium and its alloys - Insulation check by measurement of breakdown potential
ICS Classification:	25.220.20-Surface treatment
Chinese Classification:	H20-Metal physical and chemical property test method in general
Professional Classification:	GB-National Standard
Related Keywords:	organic polymer coatings organic polymer film anodic oxidation coatings electrical insulation introduction technological evolution film equipmentpolymer membrane equipment leakage
Related Topics:	Fluidity of aluminum alloy Use of organic and aqueous membranes Water film organic film Anodized film Water film and organic film Organic film pvdf membrane organic membrane membrane organic matter Naphthalene polar compound organic film and water film Electron organic polymer Water film and organic film Membrane method Oxide film The role of organic membranes Polymer determination method Titanium alloy insulation type anodic oxidation film layer for ships polymer film Classification of Organic Polymers polymer film Aluminum and Aluminum Alloy Applications Anode Polarization Potential polarized anode potential Aluminum Anodized organic polar compound Aluminum Oxidation Anodizing Al-Li Alloy Film Anodic film Aluminum alloy anodizing Aluminum Anodized Film Inorganic aluminum oxide film Aluminum alloy and its anodized film detection insulation Aluminum alloy anodizing properties of organic compounds Water film organic film Aluminum Alloy Oxidation Aqueous and organic membranes compound polarity insulating film insulating film organic film, water film Alumina insulator compound polarity Oxide film t film Aluminum alloy anode bipolar organics total polar compounds Aluminum and aluminum alloy anodizing Oxide film inspection method GBT8754 GB/T 8754-1988 GB/T 8754-2006 GB/T 8754-2022 Aluminum and aluminum alloy anodized film Aluminum and Aluminum Alloy Aluminum and aluminum alloy organic polymer coating film Qualitative and quantitative analysis of organic and inorganic components Judging the polarity of organic matter Aluminum and aluminum alloy anodized oxidation, anodized film Iron-aluminum bound organic carbon polymer Aluminum Alloy Testing for Prohibited Substances Aluminum alloy contains banned substances

《GB/T 8754-2022铝及铝合金阳极氧化膜及有机聚合物膜绝缘性的测定》由TC243（全国有色金属标准化技术委员会）归口，TC243SC1（全国有色金属标准化技术委员会轻金属分会）执行，主管部门为中国有色金属工业协会。

Introduction

Technological evolution and innovation of standard framework

Characteristic dimensions	2022 edition	2006 edition
Measurement range	Newly added organic polymer film	Only anodic oxide film
Specimen type	Special test method for round wire	Mainly flat specimens
Electrode specifications	Spherical contact surface 3-8mm	Parameters not specified

Key points for measuring core parameters

The eddy current thickness gauge using the phase detection principle must comply with the requirements of GB/T4957:

Measurement point density ≥ 3 points/cm²
Edge avoidance distance <5mm
Environmental compensation calibration frequency: Recalibration is required at room temperature ±5℃

Test equipment upgrade plan

The new composite film layer detection requires a 32-bit digital signal high voltage source system:

Parameters	Anodized film equipment	Polymer membrane equipment
Leakage current tolerance	200μA	50μA
Breakdown judgment threshold	-30% waveform distortion	0 phase loss

Example: Aerospace-grade aluminum alloy component testing requires a 150kV AC system, and the boost slope is controlled in steps of 0.5kV/s

Engineering implementation suggestions

Apply closed-loop quality control to improve result reliability:

Add plasma activation step to the pretreatment process of flat specimens
High voltage equipment is equipped with a dual-electrode self-test system
The humidity balance time needs to be extended to more than 2h in a heat-sensitive environment

Typical failure case: Process improvement strategy for the 2023 Macau Light Rail connector with a breakdown strength deviation of 42%

More samples: GB 50021-2001(2009) GB 18306-2015 NB/T 47013.2-2015

Sample only — not a preview of GB/T 8754-2022

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