GB/T 18257-2021 English PDF

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GB/T 18257-2021: Hot-face identification marking of refractory bricks for use in rotary kilns
Status: Valid

GB/T 18257: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 18257-2021	139	Add to Cart	3 days	Hot-face identification marking of refractory bricks for use in rotary kilns	Valid
GB/T 18257-2000	80	Add to Cart	Auto, < 3 mins	Refractory bricks for use in rotary kilns. Hot-face identification marking	Obsolete

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Basic data

Standard ID: GB/T 18257-2021 (GB/T18257-2021)
Description (Translated English): Hot-face identification marking of refractory bricks for use in rotary kilns
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: Q40
Word Count Estimation: 7,739
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 18257-2021: Hot-face identification marking of refractory bricks for use in rotary kilns

---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.
Hot-face identification marking of refractory bricks for use in rotary kilns ICS 81.080 CCSQ40 National Standards of People's Republic of China Replace GB/T 18257-2000 Hot surface marking of refractory bricks for rotary kiln (ISO 9205.1988,Refractorybricksforuseinrotarykilns-Hot-face Released on 2021-10-11 2022-05-01 implementation State Administration for Market Regulation Issued by the National Standardization Management Committee

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 of Standardization Documents" Drafting. This document replaces GB/T 18257-2000 "Hot Surface Marking of Refractory Bricks for Rotary Kiln". Compared with GB/T 18257-2000, the main technology The technical changes are as follows. --- Changed the scope of application and deleted "Applicable to the identification of refractory bricks for different kiln diameters" (see Chapter 1, Chapter 1 of the.2000 edition); ---The identification of the inner diameter of the kiln shell has been deleted (see 4.3 in the.2000 edition); ---Added groove identification mark combination (see 4.2.3); --- Changed the color code method (see 4.3, 5.1 of the.2000 edition); ---The color code for the inner diameter of various kiln shells has been deleted (see 5.2 of the.2000 edition). The revision of this document adopts ISO 9205.1988 "Marking of Hot Surface of Refractory Bricks for Rotary Kiln". Compared with ISO 9205.1988, this document has many adjustments in structure. Comparison list of structure number changes between two files See Appendix A. Compared with ISO 9205.1988, this document has many technical differences. The line (|) is marked. For a list of these technical differences and their reasons, see Appendix B. The following editorial changes have been made to this document. ---Change the standard name to "Marking of Refractory Brick Hot Surface for Rotary Kiln"; --- Use "A, B, C, D" instead of "H, L, A, B" (see Figure 1); --- Delete the "Note" in Figure 1; ---Use the index number to replace the text description (see Figure 1); ---Added Appendix A (informative) The comparison of structure numbers between this document and ISO 9205.1988; ---Added Appendix B (informative) The technical differences between this document and ISO 9205.1988 and their reasons. This document was proposed and managed by the National Refractory Standardization Technical Committee (SAC/TC193). Drafting organizations of this document. China Building Materials Inspection and Certification Group Co., Ltd., Metallurgical Industry Information Standards Institute, Zhengzhou Jianxin Refractory Technology Co., Ltd., Liaoning Zhongmei High Temperature Material Co., Ltd., Zhengzhou Shenya Refractory Co., Ltd., Xinmi Zhengxing Refractory Co., Ltd. Division, Yunnan Pu Nai Kun Steel High-Temperature Material Co., Ltd. The main drafters of this document. Si Guodong, Deng Lina, Yi Shuai, Chen Meina, Wang Xiaoyuan, Mu Songpo, Zeng Luju, Meng Fanchang, Wang Shushan, Zhang Zhiyuan, Zhang Zhiheng, Zhou Junyou, Zhou Xinghui, Zhu Fajin, Lu Zhiyan. This document was first published in.2000, and this is the first revision. Hot surface marking of refractory bricks for rotary kiln

1 Scope

This document specifies the marking method for the hot surface of refractory bricks for rotary kilns. This document is applicable to the design and selection of the hot surface marking of refractory bricks for rotary kilns.

2 Normative references

There are no normative references in this document.

3 Terms and definitions

There are no terms and definitions that need to be defined in this document.

4 Technical requirements

4.1 General The hot surface marking of refractory bricks for rotary kilns usually adopts the groove method. The color code method can be used as a supplementary mark as needed. Note. The need for color code is determined by the supplier and the buyer. 4.2 Groove method 4.2.1 Groove type In order to be easy to identify, the shape of each groove should be different and go deep into the brick body. The periphery of all notches should be curved. Figure 1 shows three types of grooves Slot shape, you can choose one of them. The size of the groove is not specified. 4.2.2 Mark position The groove should be located on the centerline of the hot surface of the refractory brick or on a straight line about 66mm away from the centerline, as shown in Figure 1. ......

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