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GB/T 7987-2013: Vitreous and porcelain enamels -- Determination of resistance to thermal shock
Status: Obsolete GB/T 7987: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 7987-2013 | English | 279 |
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Vitreous and porcelain enamels -- Determination of resistance to thermal shock
| Obsolete |
GB/T 7987-2013
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| GB/T 7987-2003 | English | 199 |
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Vitreous and porcelain enamels -- Determination of resistance to thermo shock
| Obsolete |
GB/T 7987-2003
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| GB/T 7987-1987 | English | 199 |
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The test methods for thermal shock resistance of glass-lined layer
| Obsolete |
GB/T 7987-1987
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PDF similar to GB/T 7987-2013
Basic data | Standard ID | GB/T 7987-2013 (GB/T7987-2013) | | Description (Translated English) | Vitreous and porcelain enamels -- Determination of resistance to thermal shock | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | G94 | | Classification of International Standard | 71.120; 25.220.50 | | Word Count Estimation | 6,661 | | Older Standard (superseded by this standard) | GB/T 7987-2003 | | Quoted Standard | HG/T 3105 | | Regulation (derived from) | National Standards Bulletin 2013 No. 27 | | Issuing agency(ies) | General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China | | Summary | This standard specifies the test temperature difference principle glass lining layer acute degeneration, devices and instruments, samples, test procedures, and test results of the determination report. This standard applies to glass lined flat specimen te | GB/T 7987-2013: Vitreous and porcelain enamels -- Determination of resistance to thermal shock---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.
Vitreous and porcelain enamels. Determination of resistance to therml shock
ICS 71.120; 25.220.50
G94
National Standards of People's Republic of China
Replacing GB/T 7987-2003
Glass-lined layer for thermal shock resistance test method
Issued on. 2013-12-31
2014-10-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This standard was drafted in accordance with GB/T 1.1-2009 given rules.
This standard replaces GB/T 7987-2003 "glass-lined layer for thermal shock resistance test method", compared with the GB/T 7987-2003, the main
To technical changes as follows.
--- Increasing the temperature difference between the layers of glass-lined blast furnace test schematic and technical requirements;
--- Increased provisions drowning specimen distance;
--- Increased when the sample was observed to wear goggles requirement.
The standard proposed by China Petroleum and Chemical Industry Association.
The standard glass-lined equipment by the National Standardization Technical Committee (SAC/TC72) centralized.
This standard was drafted. Linyi Hongye Chemical Equipment Co., Tianhua Chemical Machinery and Automation Research Institute, a non-metal chemical industry
Metallic material and equipment for Quality Supervision and Inspection Center.
The main drafters of this standard. Season Yuting, Zhang Nan, Zhaixiang Nan, Sun Tao, Ma Xiaoqiang, Lin Chun Sang.
This standard replaces the standards previously issued as follows.
--- GB/T 7987-1987, GB/T 7987-2003.
Glass-lined layer for thermal shock resistance test method
1 Scope
This standard specifies the temperature difference between the glass lining layer test principle urgent degeneration, devices and instruments, samples, test procedures and test results found
report.
This standard applies to glass-lined plate specimen was measured for thermal shock resistance degeneration.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version suitable for use herein
Member. For undated references, the latest edition (including any amendments) applies to this document.
Preparation of HG/T 3105 glass-lined steel specimens
3 Test principle
The specimen is heated to a certain temperature, and then quickly put into cold water, observe the situation after quenching the specimen glass lining layer. If not destroyed,
Successive raise test specimen temperature until the enamel coating damage so far. Appear before the destruction of a difference between the test temperature and the temperature of the glass is the sugar
Abrupt changes in temperature difference value glass specimen.
4 apparatus and instruments
4.1 thermostatic oven
Thermostatic oven shall meet the following requirements.
a) the type thermostatic oven, basic parameters and dimensions shown in Figure 1 and Table 1.
b) simultaneously heating furnace 3 specimens, the furnace temperature can be adjusted between 100 ℃ ~ 400 ℃ and to ensure that the temperature inside the furnace
Uniformly constant at any set temperature.
c) with a measurement specimen temperature and the temperature of the heating element near the sensor insertion port.
d) guaranteed the specimen can be quickly put into cold water structure.
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