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GB/T 28849-2012: SX series experimental box-shape resistance furnace
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GB/T 28849-2012	English	439	Add to Cart	4 days [Need to translate]	SX series experimental box-shape resistance furnace

GB/T 28849-2012: SX series experimental box-shape resistance furnace

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SX series experimental box-shape resistance furnace ICS 25.180.10 N61 National Standards of People's Republic of China SX series of experiments with a box-type resistance furnace Issued on. 2012-11-05 2013-02-15 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Table of Contents

Preface Ⅰ 1 Scope 1 2 Normative references 1 3 Terms and definitions 4 model and the main parameters 3 4.1 3 varieties and specifications 4.2 Part 3 4.3 The main parameters 3 5 Requirements 4 5.1 General 4 5.2 Appearance 4 5.3 heating element manufacturing quality 5 5.4 Operating temperature 5 5.5 6 surface temperature 5.6 air furnace heating time 6 5.7 rating and 7 air furnace loss 7 5.8 Insulation resistance 5.9 compressive strength insulation 7 6 Test methods 8 6.1 Visual inspection 8 6.2 heating element manufacturing QA 8 6.3 Operating Temperature Test 8 6.4 Test surface temperature 11 6.5 air furnace heating time trial 11 6.6 rating and 11 air furnace loss test 6.7 Insulation resistance test 13 6.8 Insulation compressive strength test 13 7 Inspection rules 14 7.1 Inspection classification 14 7.2 factory inspection 14 14 7.3 Type inspection 8 signs, packaging, transportation and storage 14 8.1 Marking 14 8.2 Packaging 15 8.3 Transport 15 8.4 Storage 15

Foreword

This standard was drafted in accordance with GB/T 1.1-2009 given rules. The standard proposed by China Machinery Industry Federation. The standard by the China Machinery Industry Federation. This standard is drafted by. Chongqing Institute of Metrology and Quality Inspection. Participated in the drafting of this standard. Chongqing Xin state Furnace Co., Ltd., Shanghai Yi Feng Furnace Co., Ltd., Chongqing Songzao limited liability the company. The main drafters. Zhang Wen, Gao Cheng, Ding Xuan, Lu Yongxin, Li Ping, Ren Tingting Huang Si Jun, Zhang Qiuquan, Mo Hongbo, Zhongzheng Guo. SX series of experiments with a box-type resistance furnace

1 Scope

This standard specifies the SX series of experiments with the terms and definitions, models and key parameters box resistance furnace, requirements, test methods, inspection regulations As well as the logo, packaging, transportation and storage. This standard applies to the working temperature of the atmosphere and the SX series of natural experiments protective atmosphere 100 ℃ ~ 1600 ℃ with a box-type resistance furnace (with Hereinafter referred to as box furnace).

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. GB 5959.4-2008 Safety of electric devices - Part 4. Particular requirements for resistance heating device GB/T 10066.1-2004 Test methods for electroheat installations - Part 1. General section GB/T 10066.4-2004 Test methods for electric equipment - Part 4. Indirect resistance furnaces GB/T 10067.1-2005 basic technical conditions for electric devices - Part 1. General section GB/T 10067.4-2005 Electric equipment basic technical conditions - Part 4. Indirect resistance furnaces JB/T 8195.7-2007 indirect resistance furnace - Part 7. SX series of experiments using a box furnace

3 Terms and Definitions

The following terms and definitions apply to this document. 3.1 Furnace temperature uniformity furnacetemperatureuniformity The degree of temperature uniformity box furnace work area in a thermally stable state when the test temperature. [GB/T 10066.4-2004, the definition 3.15] Note 1. in ℃ units. Note 2. Unless otherwise specified, temperature uniformity is generally expressed as follows. at each predetermined temperature measurement points measured temperature true value minus the set temperature (ie, the control point The measured temperature) obtained the maximum difference (positive or negative). When not specified, an empty furnace state. 3.2 Furnace temperature stability furnacetemperaturestability The stability of box furnace temperature point temperature in a thermally stable state when the test temperature. [GB/T 10066.4-2004, the definition 3.16] Note. in ℃ units. 3.3 Surface temperature surfacetemperaturerise Box furnace at a thermally stable state at the highest temperature, the outer surface of the furnace at any point in the specified range of temperature and ambient temperature difference. [GB/T 10066.4-2004, the definition 3.17] Note. in ℃ units. ...