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GB/T 14445-2017: Carbide products for coal mining tools
Status: Valid GB/T 14445: Evolution and historical versions
| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | Status | PDF |
| GB/T 14445-2017 | English | 359 |
Add to Cart
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4 days [Need to translate]
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Carbide products for coal mining tools
| Valid |
GB/T 14445-2017
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| GB/T 14445-1993 | English | 559 |
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3 days [Need to translate]
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Cemented carbide for coal-mining tools
| Obsolete |
GB/T 14445-1993
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PDF similar to GB/T 14445-2017
Basic data | Standard ID | GB/T 14445-2017 (GB/T14445-2017) | | Description (Translated English) | Carbide products for coal mining tools | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | H72 | | Classification of International Standard | 77.160 | | Word Count Estimation | 18,193 | | Date of Issue | 2017-10-14 | | Date of Implementation | 2018-05-01 | | 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 | GB/T 14445-2017: Carbide products for coal mining tools---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.
Carbide products for coal mining tools
ICS 77.160
H72
National Standards of People's Republic of China
Replacing GB/T 14445-1993
Coal mining tools with carbide products
2017-10-14 Published
2018-05-01 implementation
General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
China National Standardization Administration released
Foreword
This standard was drafted in accordance with the rules given in GB/T 1.1-2009.
This standard replaces GB/T 14445-1993 "coal mining tools carbide products." This standard and GB/T 14445-1993
Compared to the main technical changes are as follows.
--- Increased M19, M25, M26, M27 four product types;
--- Increase part of the type of product model;
--- Specification of the product schematic;
--- Canceled the general requirements of product size tolerances, improve the dimensional accuracy;
--- Further refinement, a clear product burr, sticky appearance requirements;
--- Detailed Chapter 4 "test methods" and Chapter 5 "Inspection Rules" of the specific content;
--- Chapter 6 to add "quality manual" content;
--- Increase Chapter 7 "contract (or purchase order) content."
This standard is proposed by China Nonferrous Metals Industry Association.
This standard by the National Non-ferrous Metal Standardization Technical Committee (SAC/TC243) centralized.
This standard is mainly drafted by Zigong Cemented Carbide Co., Ltd., Chongyi Zhangyuan Tungsten Co., Ltd., Shenzhen Note into Technology
Co., Ltd.
The main drafters of this standard. Xue Lin, Tang Huagang, Liao Jun, Tan Qian Yu, Cao Miles, Li Juan, Xie Junjie, Zhao Guoming.
This standard replaces the standards previously issued as.
--- GB/T 14445-1993.
Coal mining tools with carbide products
1 Scope
This standard specifies the requirements for coal mining tools cemented carbide products, test methods, inspection rules, signs, packaging, transportation, storage and
Quality certificate and contract (or purchase order) content.
This standard applies to coal mining coal drill, cone drill, rotary drill and other carbide products.
2 Normative references
The following documents for the application of this document is essential. For dated references, only the dated version applies to this article
Pieces. For undated references, the latest edition (including all amendments) applies to this document.
GB/T 5242 Carbide products inspection rules and test methods
GB/T 5243 cemented carbide products logo, packaging, transportation and storage
GB/T 18376.2 Carbide grades Part 2. Geology, mining tools Carbide grades
3 requirements
3.1 classification
Coal mining tools carbide products are divided into two types of flat teeth and pick-shaped teeth.
3.2 models that rules
Coal mining tools with carbide products models that rules. The letter M plus the type of figures (10,11,12,13,14,19,
20, 21, 22, 23, 24, 25, 26, 27, etc.) plus a two-digit integer representing the primary parameter (less than two integers preceded by a "0"
to make. When there is left and right model of the points, add the letter R after the model that the right type, plus the letter L that the left type; when the main parameters are the same, the other
Parameters such as height and thickness are not the same, then add A, B and C at the back of the model to show the difference; if necessary, add -1 after the model respectively,
-2, -3 for other types. See Table 1 for the model numbers for flat teeth and Example 2 for the pick teeth.
Example 1.
Other different parameters
Right
The main parameters, 15 means that the length L is 15.0mm;
Flat teeth type code;
Coal mining tools with carbide products.
Example 2.
Other different parameters
The main parameter, 12 means that the diameter D is 12.0mm;
Pick-shaped teeth type code;
Coal mining tools with carbide products.
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