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GB/T 7232-2023: Metal heat treatment - Terminology
Status: Valid GB/T 7232: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 7232-2023 | English | 1329 |
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9 days [Need to translate]
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Metal heat treatment - Terminology
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GB/T 7232-2023
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| GB/T 7232-2012 | English | RFQ |
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Terminology of metal heat treatment
| Obsolete |
GB/T 7232-2012
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| GB/T 7232-1999 | English | RFQ |
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Terminology of metal heat treatment
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GB/T 7232-1999
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| GB/T 7232-1987 | English | RFQ |
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Terminology of metal heat treatment
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GB/T 7232-1987
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PDF similar to GB/T 7232-2023
Standard similar to GB/T 7232-2023 GB/T 9452 GB/T 11354 GB/T 9450 GB/T 8121 Basic data | Standard ID | GB/T 7232-2023 (GB/T7232-2023) | | Description (Translated English) | Metal heat treatment - Terminology | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J36 | | Classification of International Standard | 25.200 | | Word Count Estimation | 70,733 | | Date of Issue | 2023-08-06 | | Date of Implementation | 2024-03-01 | | Older Standard (superseded by this standard) | GB/T 7232-2012 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 7232-2023: Metal heat treatment - Terminology---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.
ICS 25.200
CCSJ36
National Standards of People's Republic of China
Replace GB/T 7232-2012
Metal heat treatment terminology
Published on 2023-08-06
2024-03-01 Implementation
State Administration for Market Regulation
Released by the National Standardization Administration Committee
Table of contents
Preface III
1 Scope 1
2 Normative reference documents 1
3 Basic terminology 1
4 Heat treatment process 7
5 Organization and Performance 25
6 Heat treatment equipment36
Appendix A (informative) Added and deleted terms 40
Reference 44
Index 45
Foreword
This document complies with the provisions of GB/T 1.1-2020 "Standardization Work Guidelines Part 1.Structure and Drafting Rules of Standardization Documents"
Drafting.
This document replaces GB/T 7232-2012 "Terminology for Metal Heat Treatment Processes". Compared with GB/T 7232-2012, except for structural adjustments
In addition to editorial changes, the main technical changes are as follows.
a) Changed the applicable limits of “scope” (see Chapter 1, Chapter 1 of the.2012 edition);
b) Change "general category" to "basic terminology" (see Chapter 3, Chapter 2 of the.2012 edition), and add "induction heat treatment" and "multi-field heat treatment"
34 terms such as "treatment" and "temperature uniformity measurement" (see 3.1~3.3, Appendix A), deleted "bright heat treatment" and "clean heat treatment"
12 terms such as "physics" and "grain boundary engineering" (see Appendix A, Chapter 2 of the.2012 edition);
c) Added 45 terms such as "recovery", "softening annealing" and "quenching temperature" (see Chapter 4, Appendix A), and deleted "dehydrogenation treatment"
29 terms including "continuous annealing" and "box annealing" (see Appendix A, Chapter 3 to Chapter 12 of the.2012 edition);
d) Added 60 terms such as "delta ferrite", "eutectoid ferrite" and "pro-eutectoid ferrite" (see Chapter 5, Appendix A), deleted
19 terms including "grain number", "dendrite structure" and "nanocrystal" (see Appendix A, Chapter 13 and 14 of the.2012 edition);
e) Added the term "heat treatment equipment" (see Chapter 6, Appendix A).
Please note that some content in this document may be subject to patents. The publisher of this document assumes no responsibility for identifying patents.
This document is proposed and coordinated by the National Heat Treatment Standardization Technical Committee (SAC/TC75).
This document was drafted by. Beijing Mechanical and Electrical Research Institute Co., Ltd. of China Machinery Industry Group, Jiangsu Fengdong Thermal Technology Co., Ltd., Tianjin
Heat Treatment Research Institute Co., Ltd., Shanghai Jiao Tong University, Jiangsu University, Zhejiang National Inspection and Testing Technology Co., Ltd., Hubei Sanhuan Forging Co., Ltd.
Company, Changzhou New District Hehai Heat Treatment Engineering Co., Ltd., Guangdong Shichuang Metal Technology Co., Ltd., Xi'an Fulette Heat Treatment Co., Ltd.
Division, Hefei University of Technology, Dalian Jiaotong University.
The main drafters of this document. Xu Yueming, Li Qiao, Luo Xinmin, Xiang Jianhua, Song Baojing, Gu Jianfeng, Cheng Xiaonong, Zhang Qingchun, Li Hang, Shi Yousen,
Li Zhimei, Han Yongzhen, Chen Yi, Chen Nailu, Dong Xiaohong, Yin Heping, Yang Zhen, Wu Yucheng, Ren Ruiming, Gao Xinyu.
This document was first published in 1987, revised for the first time in.1999, revised for the second time in.2012, and this is the third revision.
Metal heat treatment terminology
1 Scope
This document defines the main terms and definitions of metal heat treatment basics, heat treatment processes, structures and properties, and heat treatment equipment.
This document applies to technical standards and technical documents related to metal heat treatment.
2 Normative reference documents
This document has no normative references.
3 Basic terminology
3.1 General term
3.1.1
Heat treatmentheattreatment
The process of heating, maintaining and cooling metal materials or workpieces in appropriate ways to obtain the expected structure and properties.
3.1.2
Overall heat treatmentbulkheattreatment
The entire workpiece is heat treated by penetrating heating.
3.1.3
local heat treatmentlocalheattreatment
Heat treatment is performed on only a certain part or several parts of the workpiece.
3.1.4
Surface heat treatmentsurfaceheattreatment
Heat treatment performed only on the surface of the workpiece.
3.1.5
thermo-chemical treatment
Place the workpiece in an appropriate active medium for heating and insulation, allowing one or several elements to penetrate into the surface of the workpiece to change its chemical composition,
Heat treatment of tissue structure and properties.
3.1.6
Heat treatment is carried out in advance in order to adjust the original structure and ensure the final heat treatment or (and) cutting performance of the workpiece.
3.1.7
Vacuum heat treatmentvacuumheattreatment
Heat treatment is performed by placing the workpiece in an environment with a pressure lower than 1×105Pa (usually 1×10-1Pa~1×10-3Pa).
3.1.8
Heat treatment uses electromagnetic induction to generate eddy currents in the workpiece to heat the workpiece.
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