GB/T 21954.2-2008 English PDF

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GB/T 21954.2-2008: Metal cutting band saw blades -- Part 2: Characteristics and dimensions
Status: Valid

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Basic data

Standard ID: GB/T 21954.2-2008 (GB/T21954.2-2008)
Description (Translated English): Metal cutting band saw blades -- Part 2: Characteristics and dimensions
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J41
Classification of International Standard: 25.100.40
Word Count Estimation: 7,742
Date of Issue: 2008-06-03
Date of Implementation: 2009-01-01
Adopted Standard: ISO 4875-2-2006, MOD
Regulation (derived from): National Standard Approval Announcement 2008 No.9 (Total No.122)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the various types of metal cutting band saw features and basic dimensions. This section applies to metal cutting band saw.

GB/T 21954.2-2008: Metal cutting band saw blades -- Part 2: Characteristics and dimensions

---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.
Metal cutting band saw blades Part 2. Characteristics and dimensions ICS 25.100.40 J41 National Standards of People's Republic of China Metal cutting band saw blades Part 2. Characteristics and dimensions (ISO 4875-2.2006, MOD) Posted 2008-06-03 2009-01-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Foreword

GB/T 21954 "metal cutting band saw blades" is divided into two parts. --- Part 1. Terminology; --- Part 2. Characteristics and dimensions. This section GB/T 21954 Part 2. The partial modification of the use of ISO 4875-2.2006 (E) "metal cutting band saw blade Part 2 Score. characteristics and dimensions "(in English), and ISO 4875-2. The main difference between 2006 (E) as follows. --- According to Chinese customs for some formatting has been modified; --- Some of the statements apply to international standards to apply to our standard formulation; --- Delete ISO foreword, preface to increase; --- Normative references to international standards in the use of alternative national standards, and to increase the corresponding national standards; --- The "3 Terms and definitions" to "3 band saw blade type"; --- The "3.4 compositesteelbandsawblade (composite steel blade)" meaning translated as "carbide band saw blade"; --- The "4.1 Usualsection (usually cross-section)" meaning translated as "basic cross-section"; --- In Table 5, "and pitch", add "teeth per 25.4mm Length 1 'specifications; --- In Table 6, "change pitch", the pitch "4 ~ 9", "3 ~ 9" mm, pitch modify "4 ~ 2.5", "3 ~ 2" mm. While increasing "Every 25.4mm length of 1 to 1.5 teeth" variable pitch sizes and increased Notes to Table; --- The "4.5 Flatness (flatness)" to the term "horizontal straightness" term; --- Increase in Appendix A; --- Appendix A of this section is an informative annex. This part is proposed by China Machinery Industry Federation. This part of the tool by the National Standardization Technical Committee (SAC/TC91) centralized. This section is drafted. Hunan Techno New Material Technology Co., Ltd. (Hunan Machine Tool Plant). The main drafters of this section. Wu Songtao, Xie Wenzhong, Chen Jianxing, Liu Gang, Ye Jun. Metal cutting band saw blades Part 2. Characteristics and dimensions

1 Scope

This section GB/T 21954 specifies the various types of metal cutting band saw blades features and basic dimensions. This section applies to metal cutting band saw blades.

2 Normative references

The following documents contain provisions which, through reference GB/T 21954 in this section constitute provisions of this section. For dated reference documents Member, all subsequent amendments (not including errata content) or revisions do not apply to this section, however, encouraged to reach under this section Parties to research agreement to use the latest versions of these documents. For undated reference documents, the latest versions apply to this section. GB/T 230.1 Metallic Rockwell hardness test - Part 1. Test methods (A, B, C, D, E, F, G, H, K, N, T scale) (GB/T 230.1-2004, ISO 6508-1.1999, MOD) Test methods. Part 1 GB/T 4340.1 Vickers hardness test (GB/T 4340.1-1999, eqv ISO 6507-1.1997) JB/T 6050 General heat treatment of steel parts hardness test

3 types of band saw blades

3.1 Carbon steel blade The carbon content higher than 1.0%, with a blade less than 1.5% of the low alloy steel, the total content of manganese, silicon, chromium should not be less than 0.5%. 3.2 Bi-metal band saw blade Serrated blade with a blade made of a material different from the body is made. 3.3 Friction band saw blades The fatigue of steel, heat generated by the friction of the cutting band saw blades. 3.4 Carbide band saw blades With carbide cutting edge materials, materials commonly used alloy steel blade body with blade.

4 basic dimensions

4.1 Basic sectional The basic cross section is composed of the width and thickness of band saw blades. 4.1.1 carbon steel blade (see table 1) Table 1 Carbon steel blade basic cross section in millimeters Width 35681013162025 Thickness 0.65 0.8 0.9 ......

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