QC/T 1222.1-2025 Active Industry standards-Car

QC/T 1222.1-2025 Automobile engines—Inspection method for surface treatment of piston rings—Part 1:Chromium based ceramic composite coating

QC/T 1222.1-2025 Automobile engines—Inspection method for surface treatment of piston rings—Part 1:Chromium based ceramic composite coating

Publish Date: 2025-05-09 Implement Date: 2025-11-01 For services related to genuine standard inquiry, procurement, translation, and other related services in China, please Contact Us

Basic Information

Standard Code: QC/T 1222.1-2025

Standard Type: Industry standards

Standard Status: Active

is_force_gb: no

CCS Name: The body and moving parts

ICS Name: Internal combustion engines in road vehicles

Publish Date: 2025-05-09

Implement Date: 2025-11-01

Pages: 16 pages

Scope

This document specifies the terms and definitions, types and compositions, and testing methods for chromium-based ceramic composite coatings on piston rings of automotive engines.
This document is applicable to the testing of chromium-based ceramic composite coatings on piston rings of automotive engines with a cylinder diameter of less than or equal to 160 mm. The testing of other types and large-diameter piston ring composite coatings should be carried out with reference to this document.

Development Information

Word Count: 15 Thousand words Pages: 16 pages

Same series standard

QC/T 1222.2-2025 Automobile engines—Inspection method for surface treatment of piston rings—Part 2:PVD coating

Referenced Standards

GB/T 1149.1-1994 Internal combustion engines—Piston rings—General specifications GB/T 1149.1-2008 Internal combustion engines—Piston rings—Part 1:General specifications GB/T 1149.2-1994 Internal combustion engines—Piston rings—Vocabulary GB/T 1149.2-2010 Internal combustion engines—Piston rings—Part 2:Vocabulary GB/T 4340.1-1999 Metallic materials—Vickers hardness test—Part 1:Test method GB/T 4340.1-2009 Metallic materials—Vickers hardness test—Part 1:Test method GB/T 4340.1-2024 Metallic materials—Vickers hardness test—Part 1:Test method GB/T 6462-1986 Metallic and oxide coatings—Measurement of coating thickness—Microscopical method GB/T 6462-2005 Metallic and oxide coatings—Measurement of coating thickness—Microscopical method GB/T 6462-2025 Metallic and oxide coatings—Measurement of coating thinckness—Microscopical method

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