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GB/T 25364.2-2021: Turbocharger seal rings - Part 2: Inspection measuring principles
Status: Valid GB/T 25364.2: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 25364.2-2021 | English | 199 |
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Turbocharger seal rings - Part 2: Inspection measuring principles
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GB/T 25364.2-2021
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| GB/T 25364.2-2010 | English | 359 |
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Turbocharger seal rings -- Part 2: Test method
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GB/T 25364.2-2010
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PDF similar to GB/T 25364.2-2021
Basic data | Standard ID | GB/T 25364.2-2021 (GB/T25364.2-2021) | | Description (Translated English) | Turbocharger seal rings - Part 2: Inspection measuring principles | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J91 | | Word Count Estimation | 9,973 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 25364.2-2021: Turbocharger seal rings - Part 2: Inspection measuring principles---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Turbocharger seal rings -- Part 2: Inspection measuring principles
ICS 27:020
CCSJ91
National Standards of People's Republic of China
Replacing GB/T 25364:2-2010
Turbocharger seal rings - part 2: test methods
Published on 2021-12-31
2022-07-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration
foreword
This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules of Standardization Documents"
drafted:
This document is Part 2 of GB/T 25364 "Turbocharger Sealing Rings": GB/T 25364 has published the following parts:
--- Part 1: Technical conditions;
--- Part 2: Inspection methods:
This document replaces GB/T 25364:2-2010 "Turbocharger Sealing Ring Part 2: Inspection Method": and GB/T 25364:2-
Compared with:2010, except for structural adjustment and editorial changes, the main technical changes are as follows:
a) Modified normative references (see Chapter 2, Chapter 2 of the:2010 edition);
b) Added the seal ring code (see Chapter 4);
c) The ovality, flatness and warpage have been deleted (see 3:2 of the:2010 edition);
d) Added the definition of light tightness (see No: 1 in Table 1);
e) The clamping requirements and equipment requirements for radial elastic force have been changed (see No: 3 in Table 1, 3:2:6 of the:2010 edition);
f) The detection method of free opening size has been changed (see No: 4 in Table 1, 3:2:3 of the:2010 edition);
g) The rate of disappearance of tangential elastic force has been increased (see No: 5 in Table 1);
h) Increased the hardness disappearance rate (see No: 6 in Table 1);
i) Added surface defects and appearance (see No: 7 in Table 1);
j) The residual magnetic induction intensity has been increased (see No: 8 in Table 1):
k) increased cleanliness (see No: 9 in Table 1);
l) Increased deflection (see No: 10 in Table 1);
m) The detection method for the appearance of openings is added (see No: 11 in Table 1);
n) Added the detection method of residual deformation (see No: 12 in Table 1)
o) Changed the measurement force range of ring height (see No: 13 in Table 1, 3:2:1 of the:2010 edition);
p) The radial thickness measurement method is added (see No: 14 in Table 1);
q) Added surface roughness measurement method (see No: 16 in Table 1):
Please note that some content of this document may be patented: The issuing agency of this document assumes no responsibility for identifying patents:
This document is proposed by China Machinery Industry Federation:
This document is under the jurisdiction of the National Technical Committee for Standardization of Internal Combustion Engines (SAC/TC177):
This document is drafted by: Pingxiang Debo Technology Co:, Ltd:, Commercial Vehicle Technology Center of SAIC Motor Corporation Limited, Beijing
University of Science and Technology, Shanghai Internal Combustion Engine Research Institute Co:, Ltd:, Ningbo Weifu Tianli Supercharging Technology Co:, Ltd:, Hunan Tianyan Machinery Co:, Ltd:
Responsible company, Shanghai Motor Vehicle Testing and Certification Technology Research Center Co:, Ltd:
The main drafters of this document: Yang Qiqing, Lin Chunlan, Huang Ruo, Qiao Liangliang, Bi Jinguang, Hu Liaoping, Chen Yunqing, Jiang Huafeng, Zheng Jian:
This document was first published in:2010 and this is the first revision:
Introduction
GB/T 25364 "Turbocharger Sealing Ring" is a national standard that guides the design, inspection and use of turbocharger sealing ring products in my country:
It is intended to consist of 2 parts:
--- Part 1: Technical conditions: Terms, symbols, markings, technical requirements, packaging, markings, storage
storage and transportation:
--- Part 2: Inspection methods: Designed to establish a test method for turbocharger seal rings:
Turbocharger seal rings - part 2: test methods
1 Scope
This document specifies the inspection method for turbocharger seal rings:
This document applies to turbocharger seal rings (hereinafter referred to as seal rings), and mechanical seal rings for gas impellers can also be referred to:
2 Normative references
The contents of the following documents constitute essential provisions of this document through normative references in the text: Among them, dated citations
documents, only the version corresponding to that date applies to this document; for undated references, the latest edition (including all amendments) applies to
this document:
GB/T 1031 Product Geometric Specifications (GPS) Surface Structure Profile Method Surface Roughness Parameters and Their Values
GB/T 1149:1 Internal Combustion Engine Piston Rings Part 1: General Rules
GB/T 1149:2 Internal Combustion Engine Piston Rings Part 2: Terminology
GB/T 1149:5-2008 Internal combustion engine piston ring-Part 5: Inspection method
GB/T 1800:2-2020 Product Geometric Specifications (GPS) Linear Dimensional Tolerance ISO Code System Part 2: Standards
Tolerance zone code and limit deviation table of hole and shaft
GB/T 3505 Product Geometric Specifications (GPS) Terms, Definitions and Surface Structure Parameters of Surface Structure Profile Method
GB/T 3821 Cleanliness Limits and Determination Methods for Small and Medium Power Internal Combustion Engines
GB/T 4340:1 Vickers Hardness Test for Metal Materials Part 1: Test Methods
GB/T 25364:1-2021 Turbocharger Sealing Ring Part 1: Technical Requirements
3 Terms and Definitions
The terms and definitions defined in GB/T 1149:1 and GB/T 1149:2 apply to this document:
4 Sealing ring code
See the provisions of Table 1 in GB/T 25364:1-2021 for the code and description of the sealing ring:
5 Inspection methods
5:1 General inspection conditions
Unless otherwise specified, all inspections shall be carried out under the following conditions:
a) The sealing ring should be placed on the reference plane in a free state (ie, a non-stressed state);
b) Place the sealing ring in the relevant standard ring gauge so that it is in a working closed state:
5:2 Characteristics and inspection methods
The characteristics and inspection methods of the sealing ring are specified in Table 1:
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