NB/T 11104-2023Conductive graphite ring for lengthwise graphitization furnace (English PDF)
内热串接石墨化炉导电石墨环
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Issued by
NEA
Level / Type
Industry · Recommended
Issue date
February 6, 2023
Implementation date
August 6, 2023
Scope
NB/T 11104-2023 is the English-translated version of 内热串接石墨化炉导电石墨环.
NB/T 11104-2023 covers the conductive graphite rings used in lengthwise (internal heat series) graphitization furnaces, where current passes directly through series-connected electrode columns.
The rings are pressed from expanded graphite to a set size and shape and used at the joints between products in the furnace.
The standard explains how product specifications are compiled from outer diameter, inner diameter, thickness and tolerances, sets appearance and technical indicator requirements, and gives test methods, inspection rules with batching, sampling, judgement and re-inspection, and packaging, labelling, storage and transport.
Bulk density and flexible graphite plate test methods are among its references. Issued on 6 February 2023, it has applied since 6 August 2023.
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Document preview — NB/T 11104-2023
National Standard of the People's Republic of China
- ICS
- 25.180.01
- Classification
- H 30;H34
Issued by: National Energy Administration of the People's Republic of China
Contents
- Preface
- 1 Scope
- 2 Normative references
- 3 Terms and Definitions
- 4 Product Specifications
- 4.1 Compilation Principle
- 4.2 Preparation method
- 5 Technical requirements
- 5.1 Appearance quality requirements for conductive graphite rings
- 5.2 Technical indicators of conductive graphite ring
- 6 Test Method
- 6.1 Appearance quality measurement method
- 6.2 Determination method of technical indicators
- 7 Inspection Rules
- 7.1 Inspection classification
- 7.2 Factory inspection
- 7.3 Type inspection
- 7.4 Batch rules and the number of samples that should be sampled in each batch
- 7.5 Sampling
- 7.6 Judgment rule
- 7.7 Re-inspection rule
- 8 Packaging, Labeling, Storage and Transportation
- 8.1 Packaging
- 8.2 Identification
- 8.3 Storage and transport
- Appendix A (Informative) Product Specifications
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 for Standardization Documents" drafting.
1 Scope
This document specifies the test methods, inspection rules, packaging, labeling, storage and transportation of conductive graphite rings used in internal thermal series graphitization furnaces. lose etc.
This document is applicable to conductive graphite rings used in internal thermal series graphitization furnaces.
2 Normative references
The contents of the following documents constitute the essential provisions of this document through normative references in the text. Among them, dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document.
GB/T 1427 Carbon material sampling method
GB/T 24528 Method for Determination of Bulk Density of Carbon Materials
GB/T 33920 Test method for flexible graphite plates
3 Terms and Definitions
The following terms and definitions apply to this document.
3.1 Lengthwise graphitization furnace
A type of furnace in which the current directly passes through the electrode columns connected in series, and the internal resistance of the electrode columns generates high temperature to graphitize the baked products.
3.2 Conductive graphite ring
Expanded graphite is used as a raw material to press into a specified size and shape, and it is used for the conductive ring used in the butt joint of the product furnace.
4 Product Specifications
4.1 Compilation principles
4.1.1 The product specification of the conductive graphite ring shall reflect the product type, main characteristic parameters and other information.
4.1.2 The naming of product specifications shall be as concise as possible. Under the premise that different products can be clearly distinguished, the number of letters in the specification should be reduced as much as possible.
4.1.3 The same product should not have different specifications.
4.2 Preparation method
4.2.1 Product specifications consist of Chinese names and numbers.
4.2.2 Product specifications consist of information such as basic specifications and main parameters. The basic specifications reflect the product category, type and characteristics, and the main parameters Including outer diameter, inner diameter, thickness and allowable tolerance dimensions, etc. See Appendix A for examples of specifications and dimensions.
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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
Referenced standards
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Related Standards
GB/T 1427-2000 — Sample method of carbon material
GB/T 1427-2016 — Sample method of carbon material
GB/T 24528-2009 — Carbon materials -- Determination method of the bulk density
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