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GB/T 9452-2023 English PDF (GBT9452-2023)
GB/T 9452-2023 English PDF (GBT9452-2023)
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GB/T 9452-2023: Test method for qualified work zone of heat treatment furnace
GB/T 9452-2023
ICS25:200
CCSJ36
National Standards of People's Republic of China
Replacing GB/T 9452-2012
Method for determination of effective heating zone of heat treatment furnace
Released on 2023-05-23
2023-12-01 implementation
State Administration for Market Regulation
Released by the National Standardization Management Committee
table of contents
Preface I
1 Range 1
2 Normative references 1
3 Terms and Definitions 1
4 Heat treatment furnaces are classified according to temperature uniformity 2
5 Initial determination and periodic determination of the effective heating zone 3
6 Test System 5
7 Test method 7
8 Effective heating zone test evaluation 12
9 Records and Reports 12
10 Management 13
Appendix A (Informative) Effective Heating Zone Test Record Form 14
Appendix B (informative) Effective heating zone measurement certificate 15
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 for Standardization Documents"
drafting:
This document replaces GB/T 9452-2012 "Measurement Method for Effective Heating Zone of Heat Treatment Furnace": Compared with GB/T 9452-2012, except
In addition to structural adjustments and editorial changes, the main technical changes are as follows:
a) "Other heating equipment can also be implemented with reference" (see Chapter 1);
b) Added normative references to GB/T 30825 (see Chapter 3 and 4:1);
c) Changed the normative reference documents, changing GB/T 16839:2 to GB/T 16839:1 (see 6:2:1, 6:2 of the:2012 edition);
d) Added the normative reference document JB/T 8901 (see 6:2:1);
e) Added terms and definitions (see 3:7, 3:8, 3:9);
f) Change "recording instrument" to "digital recording instrument" (see 4:1, Chapter 4 of the:2012 edition);
g) Added "requirements for temperature uniformity of common heat treatment processes" (see Table 2);
h) Changed "implementation conditions and measurement cycle" to "initial measurement and periodic measurement of effective heating zone", and added and changed two types of measurements
The corresponding requirements of the method (see Chapter 5, Chapter 5 of the:2012 edition);
i) Changed "testing device" to "test system", deleted "connection diagram of measuring circuit", added and changed the reference to each component
Regulations (see Chapter 6, Table 5, Table 6 and Figure 1, Chapter 6, Table 3, Table 4 and Figure 2 of the:2012 edition);
j) The provisions on the test method have been changed (see 7:2, 7:3, 7:4, 7:2, 7:3, 7:4 of the:2012 edition), and the requirement of "repeated test" has been deleted:
Seek (see 7:5 of the:2012 edition);
k) The conclusion for assessing whether the effective heating zone is "retested" has been added (see 8:3);
l) Changed "Test Report" to "Records and Reports", added recorded items, and changed the regulations on report content (see Section 9
Chapter, Chapter 9 of the:2012 edition);
m) The provisions on "management" have been changed (see 10:2, 10:3, 10:4, 10:2, 10:3, 10:4 of the:2012 edition):
Please note that some contents of this document may refer to patents: The issuing agency of this document assumes no responsibility for identifying patents:
This document is proposed and managed by the National Heat Treatment Standardization Technical Committee (SAC/TC75):
This document is drafted by: Guangdong Shichuang Metal Technology Co:, Ltd:, Beijing Electromechanical Research Institute Co:, Ltd:, Jiangsu Fengdong Thermal Technology Co:, Ltd:
Co:, Ltd:, AVIC Great Wall Metrology and Testing (Tianjin) Co:, Ltd:, Tianjin Heat Treatment Research Institute Co:, Ltd:, Erzhong (Deyang) Heavy Equipment Co:, Ltd:
Company, Zhuzhou CRRC Tianli Forging Co:, Ltd:, Changzhou New District Hehai Heat Treatment Engineering Co:, Ltd:, Jiangsu Fengdong Heat Treatment and Surface Modification Engineering Co:, Ltd:
Cheng Technology Research Co:, Ltd:, Xi'an Hantang Analysis and Testing Co:, Ltd:, Xi'an Flat Heat Treatment Co:, Ltd:
The main drafters of this document: Dong Xiaohong, Xu Yueming, Xiang Jianhua, Chang Yumin, Lu Guoyi, Li Qiao, Wang Guangsheng, Song Baojing, Li Anfu,
Su Liwu, Yin Heping, Shi Yousen, Zhang Shuxiang, Li Xianjun, Pang Shuo, Yang Zhen:
This document was first published in 1988, revised for the first time in:2003, revised for the second time in:2012, and this is the third revision:
Method for determination of effective heating zone of heat treatment furnace
1 Scope
This document specifies the classification of heat treatment furnaces according to temperature uniformity, initial measurement and periodic measurement of effective heating zone, test system, test method,
Requirements for outcome assessment, recording and reporting, and management:
This document is applicable to the determination of the effective heating zone of a heat treatment furnace that meets the temperature uniformity requirements within the operating temperature range: This document does not apply
In a continuous heating furnace, there is no fixed process to specify the heating temperature or a heating zone that does not require temperature uniformity: Other heating equipment can refer to
implement:
2 Normative references
The contents of the following documents constitute the essential provisions of this document through normative references in the text: Among them, dated references
For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to
this document:
GB/T 1598 Platinum rhodium 10-platinum thermocouple wire, platinum rhodium 13-platinum thermocouple wire, platinum rhodium 30-platinum rhodium 6 thermocouple wire
GB/T 2614 Nickel-chromium-nickel-silicon thermocouple wire
GB/T 2903 copper-copper nickel (constantan) thermocouple wire
GB/T 4989 Compensation wire for thermocouple
GB/T 4990 Compensation wire alloy wire for thermocouple
GB/T 4993 Nickel-chromium-copper-nickel (constantan) thermocouple wire
GB/T 4994 iron-copper nickel (constantan) thermocouple wire
GB/T 5977 Platinum wire for resistance thermometers
GB/T 7232 Metal Heat Treatment Process Terminology
GB/T 13324 Terminology of heat treatment equipment
GB/T 16839:1 Thermocouple Part 1: Electromotive force specification and tolerance
GB/T 17615 Nickel-chromium-silicon-nickel-silicon-magnesium thermocouple wire
GB/T 18404 Armored thermocouple cables and armored thermocouples
GB/T 30825 Heat treatment temperature measurement
JB/T 8901 Precious metal armored thermocouple cable
3 Terms and Definitions
The following terms and definitions defined in GB/T 7232, GB/T 13324 and GB/T 30825 apply to this document:
3:1
process temperature process temperature
According to the purpose of heat treatment of the workpiece and the type of material, the heating temperature specified by the heat treatment process:
3:2
The temperature uniformity in the effective heating zone of the heat treatment furnace refers to the maximum deviation of the temperature of each test point in the effective heating zone relative to the set temperature:
Note: usually expressed as "± ℃":
Get Quotation: Click GB/T 9452-2023 (Self-service in 1-minute)
Historical versions (Master-website): GB/T 9452-2023
Preview True-PDF (Reload/Scroll-down if blank)
GB/T 9452-2023: Test method for qualified work zone of heat treatment furnace
GB/T 9452-2023
ICS25:200
CCSJ36
National Standards of People's Republic of China
Replacing GB/T 9452-2012
Method for determination of effective heating zone of heat treatment furnace
Released on 2023-05-23
2023-12-01 implementation
State Administration for Market Regulation
Released by the National Standardization Management Committee
table of contents
Preface I
1 Range 1
2 Normative references 1
3 Terms and Definitions 1
4 Heat treatment furnaces are classified according to temperature uniformity 2
5 Initial determination and periodic determination of the effective heating zone 3
6 Test System 5
7 Test method 7
8 Effective heating zone test evaluation 12
9 Records and Reports 12
10 Management 13
Appendix A (Informative) Effective Heating Zone Test Record Form 14
Appendix B (informative) Effective heating zone measurement certificate 15
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 for Standardization Documents"
drafting:
This document replaces GB/T 9452-2012 "Measurement Method for Effective Heating Zone of Heat Treatment Furnace": Compared with GB/T 9452-2012, except
In addition to structural adjustments and editorial changes, the main technical changes are as follows:
a) "Other heating equipment can also be implemented with reference" (see Chapter 1);
b) Added normative references to GB/T 30825 (see Chapter 3 and 4:1);
c) Changed the normative reference documents, changing GB/T 16839:2 to GB/T 16839:1 (see 6:2:1, 6:2 of the:2012 edition);
d) Added the normative reference document JB/T 8901 (see 6:2:1);
e) Added terms and definitions (see 3:7, 3:8, 3:9);
f) Change "recording instrument" to "digital recording instrument" (see 4:1, Chapter 4 of the:2012 edition);
g) Added "requirements for temperature uniformity of common heat treatment processes" (see Table 2);
h) Changed "implementation conditions and measurement cycle" to "initial measurement and periodic measurement of effective heating zone", and added and changed two types of measurements
The corresponding requirements of the method (see Chapter 5, Chapter 5 of the:2012 edition);
i) Changed "testing device" to "test system", deleted "connection diagram of measuring circuit", added and changed the reference to each component
Regulations (see Chapter 6, Table 5, Table 6 and Figure 1, Chapter 6, Table 3, Table 4 and Figure 2 of the:2012 edition);
j) The provisions on the test method have been changed (see 7:2, 7:3, 7:4, 7:2, 7:3, 7:4 of the:2012 edition), and the requirement of "repeated test" has been deleted:
Seek (see 7:5 of the:2012 edition);
k) The conclusion for assessing whether the effective heating zone is "retested" has been added (see 8:3);
l) Changed "Test Report" to "Records and Reports", added recorded items, and changed the regulations on report content (see Section 9
Chapter, Chapter 9 of the:2012 edition);
m) The provisions on "management" have been changed (see 10:2, 10:3, 10:4, 10:2, 10:3, 10:4 of the:2012 edition):
Please note that some contents of this document may refer to patents: The issuing agency of this document assumes no responsibility for identifying patents:
This document is proposed and managed by the National Heat Treatment Standardization Technical Committee (SAC/TC75):
This document is drafted by: Guangdong Shichuang Metal Technology Co:, Ltd:, Beijing Electromechanical Research Institute Co:, Ltd:, Jiangsu Fengdong Thermal Technology Co:, Ltd:
Co:, Ltd:, AVIC Great Wall Metrology and Testing (Tianjin) Co:, Ltd:, Tianjin Heat Treatment Research Institute Co:, Ltd:, Erzhong (Deyang) Heavy Equipment Co:, Ltd:
Company, Zhuzhou CRRC Tianli Forging Co:, Ltd:, Changzhou New District Hehai Heat Treatment Engineering Co:, Ltd:, Jiangsu Fengdong Heat Treatment and Surface Modification Engineering Co:, Ltd:
Cheng Technology Research Co:, Ltd:, Xi'an Hantang Analysis and Testing Co:, Ltd:, Xi'an Flat Heat Treatment Co:, Ltd:
The main drafters of this document: Dong Xiaohong, Xu Yueming, Xiang Jianhua, Chang Yumin, Lu Guoyi, Li Qiao, Wang Guangsheng, Song Baojing, Li Anfu,
Su Liwu, Yin Heping, Shi Yousen, Zhang Shuxiang, Li Xianjun, Pang Shuo, Yang Zhen:
This document was first published in 1988, revised for the first time in:2003, revised for the second time in:2012, and this is the third revision:
Method for determination of effective heating zone of heat treatment furnace
1 Scope
This document specifies the classification of heat treatment furnaces according to temperature uniformity, initial measurement and periodic measurement of effective heating zone, test system, test method,
Requirements for outcome assessment, recording and reporting, and management:
This document is applicable to the determination of the effective heating zone of a heat treatment furnace that meets the temperature uniformity requirements within the operating temperature range: This document does not apply
In a continuous heating furnace, there is no fixed process to specify the heating temperature or a heating zone that does not require temperature uniformity: Other heating equipment can refer to
implement:
2 Normative references
The contents of the following documents constitute the essential provisions of this document through normative references in the text: Among them, dated references
For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to
this document:
GB/T 1598 Platinum rhodium 10-platinum thermocouple wire, platinum rhodium 13-platinum thermocouple wire, platinum rhodium 30-platinum rhodium 6 thermocouple wire
GB/T 2614 Nickel-chromium-nickel-silicon thermocouple wire
GB/T 2903 copper-copper nickel (constantan) thermocouple wire
GB/T 4989 Compensation wire for thermocouple
GB/T 4990 Compensation wire alloy wire for thermocouple
GB/T 4993 Nickel-chromium-copper-nickel (constantan) thermocouple wire
GB/T 4994 iron-copper nickel (constantan) thermocouple wire
GB/T 5977 Platinum wire for resistance thermometers
GB/T 7232 Metal Heat Treatment Process Terminology
GB/T 13324 Terminology of heat treatment equipment
GB/T 16839:1 Thermocouple Part 1: Electromotive force specification and tolerance
GB/T 17615 Nickel-chromium-silicon-nickel-silicon-magnesium thermocouple wire
GB/T 18404 Armored thermocouple cables and armored thermocouples
GB/T 30825 Heat treatment temperature measurement
JB/T 8901 Precious metal armored thermocouple cable
3 Terms and Definitions
The following terms and definitions defined in GB/T 7232, GB/T 13324 and GB/T 30825 apply to this document:
3:1
process temperature process temperature
According to the purpose of heat treatment of the workpiece and the type of material, the heating temperature specified by the heat treatment process:
3:2
The temperature uniformity in the effective heating zone of the heat treatment furnace refers to the maximum deviation of the temperature of each test point in the effective heating zone relative to the set temperature:
Note: usually expressed as "± ℃":
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