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GB/T 22590-2021: Refractory castables for rolling mill reheating furnace
Status: Valid GB/T 22590: Evolution and historical versions
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| GB/T 22590-2021 | English | 119 |
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Refractory castables for rolling mill reheating furnace
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GB/T 22590-2021
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| GB/T 22590-2008 | English | 90 |
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Refractory castable for reheating furnaces
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Basic data | Standard ID | GB/T 22590-2021 (GB/T22590-2021) | | Description (Translated English) | Refractory castables for rolling mill reheating furnace | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | Q46 | | Word Count Estimation | 6,661 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration | GB/T 22590-2021: Refractory castables for rolling mill reheating furnace---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.
Refractory castables for rolling mill reheating furnace
ICS 81.080
CCSQ46
National Standards of People's Republic of China
Replace GB/T 22590-2008
Refractory castable for steel rolling heating furnace
Released on 2021-08-20
2022-03-01 implementation
State Administration of Market Supervision and Administration
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 22590-2008 "Refractory Castables for Steel Rolling Heating Furnace". Compared with GB/T 22590-2008, except for the structure
In addition to adjustments and editorial changes, the main technical changes are as follows.
a) Modified the standard English name (see cover, cover of the.2008 edition);
b) Revised part of the cited documents (see Chapter 2, Chapter 2 of the.2008 edition);
c) Adjusted product grades. ZJ-42 was deleted, and ZJ-40, ZJ-50 and ZJK-60 grades were added (see Chapter 4 and Chapter 5,.2008
Chapter 3 and Chapter 4 of the edition);
d) The technical indicators of anti-burst temperature have been added, and some technical indicators have been revised (see Table 1, Table 1 of the.2008 edition);
e) Modified the sampling and qualification rules (see 7.2, 6.2 of the.2008 edition).
Please note that some of the contents of this document may involve patents. The issuing agency of this document is not responsible for identifying patents.
This document was proposed and managed by the National Refractory Standardization Technical Committee (SAC/TC193).
Drafting organizations of this document. Henan University of Technology, Puyang Pu High Temperature Materials (Group) Co., Ltd., Jiaozuo Jinxin Hengtuo New Materials Co., Ltd.
Co., Ltd., Henan Gengsheng New Material Co., Ltd., Beijing Lier High Temperature Material Co., Ltd., Wuhan Weilin Technology Co., Ltd.,
Beijing Ruipu Tongchuang Technology Development Co., Ltd., Tangshan Guoliang Special Refractories Co., Ltd., Chongqing Shijin Refractories Co., Ltd.,
Beijing Union Rongda Engineering Materials Co., Ltd.
The main drafters of this document. Shi Kai, Xu Deting, Wang Cheng, Xia Yi, Zhang Hao, Liu Li, Li Wenfeng, Qian Xueying, Zhang Junbo, Wang Yilong, Huang Xiaofeng,
Xue Hongyan, Deng Lerui, Fan Junling, Zhang Guangfu, Zhang Xiaobo, Feng Guang, Jiang Le, Zhang Hongjin, Huang Yanchao, Wang Siyan.
The previous versions of this document and the documents replaced are as follows.
---In.2008, it was first published as GB/T 22590-2008;
---This is the first revision.
Refractory castable for steel rolling heating furnace
1 Scope
This document specifies the classification and designation of refractory castables for steel rolling furnaces, technical requirements, test methods, quality assessment procedures, packaging,
Marking, transportation, storage and quality certificate.
This document is applicable to refractory castables for working linings and thermal insulation linings of steel rolling furnaces.
2 Normative references
The contents of the following documents constitute the indispensable clauses of this document through normative references in the text. Among them, dated quotations
Only the version corresponding to that date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to
This document.
GB/T 4513.2 Unshaped refractory materials Part 2.Sampling
GB/T 4513.5 Unshaped refractory materials Part 5.Sample preparation and pretreatment
GB/T 4513.6 Unshaped refractories Part 6.Determination of physical properties
GB/T 6900 Aluminium-silicon refractory chemical analysis method
GB/T 15545 General provisions for packaging, marking, transportation, storage and quality certificates of unshaped refractory materials
GB/T 21114 Refractory material X-ray fluorescence spectroscopy chemical analysis method of molten cast glass sheet
GB/T 30873 Test method for thermal shock resistance of refractories
GB/T 36134 Unshaped refractory material burst resistance test method
YB/T 4130 Test method for thermal conductivity of refractory materials (water flow plate method)
3 Terms and definitions
There are no terms and definitions that need to be defined in this document.
4 Classification and grades
Refractory castables for steel rolling heating furnaces are divided into refractory castables for working linings and refractory castables for thermal insulation linings according to their use positions.
Refractory castables for working linings are divided into ZJ-40, ZJ-50, ZJ-60, ZJK-60, ZJ-65,
ZJS-65, ZJ-70 seven grades; refractory castables for thermal insulation lining are divided into ZJQ-0.6, ZJQ-0.8, ZJQ-1.0, ZJQ-1.3,
Five grades of ZJQ-1.5.
Among them, Z, J, K, S, and Q are the first characters of the first Chinese pinyin of "rolling heating furnace", "casting material", "anti-burst", "water-cooled pipe" and "light".
Mother; the number after ZJ, ZJK, ZJS represents the mass fraction of the product alumina, the number after ZJQ represents the volume density of the product.
5 Technical requirements
5.1 The physical and chemical performance indexes of the refractory castable for the working lining of the steel rolling heating furnace should meet the requirements of Table 1.
5.2 The physical and chemical performance indexes of the refractory castable for the heat insulation lining of the steel rolling heating furnace should meet the requirements of Table 2.
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