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GB/T 6335.2: Historical versions
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| GB/T 6335.2-2010 | English | 139 |
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Rotary and rotary impact masonry drill bits with hard metal tips -- Part 2: Technical specifications
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| GB/T 6335.2-1996 | English | 199 |
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Rotary and rotary impact masonry drill bits with hardmetal tips. Part 2: Technical specifications
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Basic data
| Standard ID | GB/T 6335.2-2010 (GB/T6335.2-2010) |
| Description (Translated English) | Rotary and rotary impact masonry drill bits with hard metal tips -- Part 2: Technical specifications |
| Sector / Industry | National Standard (Recommended) |
| Classification of Chinese Standard | J41 |
| Classification of International Standard | 25.100.30 |
| Word Count Estimation | 6,671 |
| Date of Issue | 2010-12-23 |
| Date of Implementation | 2011-07-01 |
| Older Standard (superseded by this standard) | GB/T 6335.2-1996 |
| Quoted Standard | GB/T 6335.1; GB/T 18376.2 |
| Regulation (derived from) | National Standard Approval Announcement 2010 No.10 (Total No.165) |
| 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 rotation and rotary impact masonry drill carbide (hereinafter referred to as the impact of drilling) the size and position tolerances, appearance and surface roughness, signs and basic requirements for packaging, material and hardness, performance test. This section applies to brick, hole diameter on the block and lightweight materials such as wall 4 mm ~ 25 mm rotary and rotary impact masonry drill bits Carbide. This section does not apply to rock drill. |
GB/T 6335.2-2010: Rotary and rotary impact masonry drill bits with hard metal tips -- Part 2: Technical specifications
---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.
Rotary and rotary impact masonry drill bits with hardmetal tips Part 2. Technical specifications
ICS 25.100.30
J41
National Standards of People's Republic of China
Replacing GB/T 6335.2-1996
Rotary and rotary impact masonry drill bits Carbide
Part 2. Technical requirements
Part 2. Technicalspecifications
Issued on. 2010-12-23
2011-07-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
GB/T 6335 "Rotary and rotary impact masonry drill bits Carbide" is divided into two parts.
--- Part 1. Dimensions;
--- Part 2. Technical requirements.
This is Part 2 GB/T 6335's.
This Part replaces GB/T 6335.2-1996 "Rotary and rotary impact masonry drill bits with hardmetal tips - Part 2. technical conditions."
This portion of the GB/T 6335.2-1996 compared to the main changes are as follows.
--- Chapter 2 original standard reference standard JB/T 8369 is amended as GB/T 18376.2;
--- Modify the original 5.1 standard 4.3.1 "impact drill with a carbide blade according to the provisions of GB/T 18376.2 of";
--- Original standard 8.1.1 to 4.5.1.1 of modification "shall be marked on the product";
--- Original standard 8.1.1a) modify the 4.5.1.1 "diameter";
--- Original standard 8.1.2b) modify the 4.5.1.2 "labeled products."
This section of Appendix A normative appendix.
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. Chengdu Tool Research Institute, Changzhou xixiashu tools industry Productivity Promotion Center.
The main drafters of this section. Lucy Liu, Zou Chunying, check States soldiers.
This part of the standard replaces the previous editions are.
--- GB/T 6335-1986;
--- GB/T 6335.2-1996.
Rotary and rotary impact masonry drill bits Carbide
Part 2. Technical requirements
1 Scope
GB/T 6335 provisions of this part of the Rotary and rotary impact masonry drill bits carbide (hereinafter referred to as the hammer drill) the size and location
Tolerance, appearance and surface roughness, and material hardness, performance testing, marking and packing of the basic requirements.
This section applies to drilling diameter in brick, masonry and light wall materials such as 4mm ~ Rotary and rotary impact type of rigid 25mm
Alloy construction workers drilling. This section does not apply to a rock bit.
2 Normative references
The following documents contain provisions by GB/T 6335 this part of the reference in terms 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 6335.1 Rotary and rotary impact masonry drill bits with hardmetal tips - Part 1. Size (GB/T 6335.1-2010,
ISO 5468.2006, Rotaryandrotaryimpactmasonrydrilbitswithhardmetaltips-Dimensions, MOD)
GB/T 18376.2 carbide grade Part 2. geology, mining tools with carbide grade
3 Symbol
d --- Impact Drill diameter;
l --- overhang.
4. Technical Requirements
4.1 size and position tolerances
Hammer drill size should be consistent with the provisions of GB/T 6335.1, the position tolerances according to Table 1.
Table 1 millimeters
Item d
≤50 > 50 ~ 100 > 100 ~ 200 > 300 ~ 400 > 400 ~ 550
Radial shank positioned round the axis of the tool body
Runout
4-8 1.0 1.5
> 25 ~ 8 1.5
2.0 2.5 2.75
Cylindrical carbide blade of the cutter body axis
The Symmetry
4-6 0.20
> 0.35 6-8
> 8 ~ 16 0.50
> 16 1.00
The cutting edge of the cutter body axis oblique circle
beat
4 ~ 25 0.50
NOTE. Drills shock tolerance position detection method in accordance with Appendix A.
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