GB/T 37796-2019 PDF English
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| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivery | Name of Chinese Standard | Status |
| GB/T 37796-2019 | English | 199 |
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Insulation refractories - Determination of thermal conductivity (calorimeter)
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GB/T 37796-2019: Insulation refractories - Determination of thermal conductivity (calorimeter)---This is an excerpt. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.), auto-downloaded/delivered in 9 seconds, can be purchased online: https://www.ChineseStandard.net/PDF.aspx/GBT37796-2019
(Insulating refractory materials, thermal conductivity test method (calorimeter method))
ICS 81.080
Q40
National Standards of People's Republic of China
Thermal insulation refractory thermal conductivity
Test method (calorimeter method)
Insulationrefractories-Determinationofthermalconductivity(calorimeter)
Published on.2019-08-30
2020-07-01 implementation
State market supervision and administration
China National Standardization Administration issued
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
Please note that some of the contents of this document may involve patents. The issuing organization of this document is not responsible for identifying these patents.
This standard is proposed and managed by the National Technical Committee for Refractory Standardization (SAC/TC193).
This standard was drafted. Sinosteel Luoyang Refractory Materials Research Institute Co., Ltd., Morgan Kailong (Jingmen) Thermal Ceramics Co., Ltd., Jiangsu
Zhonglei Energy Saving Technology Development Co., Ltd., Jiangsu Gems Heat Resistant Technology Development Co., Ltd., Dongtai Gangtai Refractory Material Co., Ltd., China Metallurgical Competition
Di Engineering Technology Co., Ltd.
The main drafters of this standard. Chen Wei, Zhang Jian, Liu Wei, Zhang Yanjie, Zhang Chao, Wang Jie, Qiao Aijun, Li Xiaorui, Yang Fan, Li Longfei, Xu Guangping,
Yan Jian, Liu Pengcheng, Shen Fujun, Liu Chunlan, Meng Ailong, Han Junhua.
Thermal insulation refractory thermal conductivity
Test method (calorimeter method)
1 Scope
This standard specifies the principle, equipment, sample preparation, test procedure and results of the thermal conductivity test method (calorimeter method) for insulating refractories.
Calculation and test report.
This standard is applicable to the determination of the thermal conductivity of refractory fibers and their products, heat-insulated shaped products and other insulating refractory materials.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
Test method for bulk density and true porosity of GB/T 2998 shaped insulating refractory products
GB/T 8170 Numerical Rounding Rules and Representation and Determination of Limit Values
GB/T 16839.1 Thermocouple Part 1. Electromotive force specifications and tolerances
GB/T 17911 refractory fiber product test method
3 Principle
According to the Fourier heat conduction law, when the test sample heat transfer reaches a steady state, it is heated by the hot surface of the sample to the cold surface per unit time.
The amount of heat absorbed is proportional to the cross-sectional area of the sample perpendicular to the direction of heat propagation and the temperature gradient. This standard requires a large test
Temperature gradient and steady state conditions.
4 instruments
4.1 Electric drying oven
The temperature can be controlled at 110 °C ± 5 °C.
4.2 Balance
The division value is 0.1g.
4.3 Thermal conductivity tester
4.3.1 Thermal conductivity tester includes heating chamber, calorimeter, water circulation system, thermocouple and instrument. Schematic diagram of thermal conductivity tester
see picture 1.
4.3.2 Heating chamber. See Figure 2. In a neutral or oxidizing atmosphere, the heating chamber can be heated to a certain temperature rise curve and stabilized.
1550 ° C ± 3 ° C. A piece of silicon carbide equalizing plate of not less than 342mm × 228mm × 25mm is placed above the sample, silicon carbide board
The surface of 342mm × 228mm should be flat. Under the calorimeter, a layer of insulation of at least 25 mm thickness should be provided.
GB/T 37796-2019
(Insulating refractory materials, thermal conductivity test method (calorimeter method))
ICS 81.080
Q40
National Standards of People's Republic of China
Thermal insulation refractory thermal conductivity
Test method (calorimeter method)
Insulationrefractories-Determinationofthermalconductivity(calorimeter)
Published on.2019-08-30
2020-07-01 implementation
State market supervision and administration
China National Standardization Administration issued
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
Please note that some of the contents of this document may involve patents. The issuing organization of this document is not responsible for identifying these patents.
This standard is proposed and managed by the National Technical Committee for Refractory Standardization (SAC/TC193).
This standard was drafted. Sinosteel Luoyang Refractory Materials Research Institute Co., Ltd., Morgan Kailong (Jingmen) Thermal Ceramics Co., Ltd., Jiangsu
Zhonglei Energy Saving Technology Development Co., Ltd., Jiangsu Gems Heat Resistant Technology Development Co., Ltd., Dongtai Gangtai Refractory Material Co., Ltd., China Metallurgical Competition
Di Engineering Technology Co., Ltd.
The main drafters of this standard. Chen Wei, Zhang Jian, Liu Wei, Zhang Yanjie, Zhang Chao, Wang Jie, Qiao Aijun, Li Xiaorui, Yang Fan, Li Longfei, Xu Guangping,
Yan Jian, Liu Pengcheng, Shen Fujun, Liu Chunlan, Meng Ailong, Han Junhua.
Thermal insulation refractory thermal conductivity
Test method (calorimeter method)
1 Scope
This standard specifies the principle, equipment, sample preparation, test procedure and results of the thermal conductivity test method (calorimeter method) for insulating refractories.
Calculation and test report.
This standard is applicable to the determination of the thermal conductivity of refractory fibers and their products, heat-insulated shaped products and other insulating refractory materials.
2 Normative references
The following documents are indispensable for the application of this document. For dated references, only dated versions apply to this article.
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
Test method for bulk density and true porosity of GB/T 2998 shaped insulating refractory products
GB/T 8170 Numerical Rounding Rules and Representation and Determination of Limit Values
GB/T 16839.1 Thermocouple Part 1. Electromotive force specifications and tolerances
GB/T 17911 refractory fiber product test method
3 Principle
According to the Fourier heat conduction law, when the test sample heat transfer reaches a steady state, it is heated by the hot surface of the sample to the cold surface per unit time.
The amount of heat absorbed is proportional to the cross-sectional area of the sample perpendicular to the direction of heat propagation and the temperature gradient. This standard requires a large test
Temperature gradient and steady state conditions.
4 instruments
4.1 Electric drying oven
The temperature can be controlled at 110 °C ± 5 °C.
4.2 Balance
The division value is 0.1g.
4.3 Thermal conductivity tester
4.3.1 Thermal conductivity tester includes heating chamber, calorimeter, water circulation system, thermocouple and instrument. Schematic diagram of thermal conductivity tester
see picture 1.
4.3.2 Heating chamber. See Figure 2. In a neutral or oxidizing atmosphere, the heating chamber can be heated to a certain temperature rise curve and stabilized.
1550 ° C ± 3 ° C. A piece of silicon carbide equalizing plate of not less than 342mm × 228mm × 25mm is placed above the sample, silicon carbide board
The surface of 342mm × 228mm should be flat. Under the calorimeter, a layer of insulation of at least 25 mm thickness should be provided.
......
Source: Above contents are excerpted from the full-copy PDF -- translated/reviewed by: www.ChineseStandard.net / Wayne Zheng et al.
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