JB/T 7991.1-2001 JB/T 7991.1-2001 Electroplated superhard abrasive products code and mark JB/T7991.1-2001 Standard download decompression password: www.bzxz.net

JB/T 7991. 1--2001
This standard is a revision of JB/T7991.1-1995 "Codes for Electroplated Diamond Internal Cutting Saw Blades and Assorted Files". This standard has made corresponding supplements to the content of JB/T7991.1--1995, making the standard more reasonable, comprehensive and complete. The name of this standard is changed to "Codes and Markings for Electroplated Superhard Abrasive Products". This standard replaces JB/T7991.1--1995 from the date of implementation. This standard is proposed and managed by the National Technical Committee for Standardization of Abrasives and Grinding Tools. The drafting unit of this standard: Suzhou Grinding Wheel Factory. The participating drafting units of this standard: Sixth Grinding Wheel Factory. The main drafters of this standard: Chen Baoheng, Mo Yunshui, Xue Mingzhang. This standard was first issued in June 1987 as GB8065--86, and the standard number was adjusted to JB/T7991.1-1995 in April 1996. This is the first revision.
1 Specification
Standard of the Machinery Industry of the People's Republic of China
Electroplated superabrasive products
Symbol and designation
for electroplated superabrasive products This standard specifies the general characteristics and shape codes of electroplated superabrasive products. This standard applies to electroplated metal bond superabrasive products. 2 Shape and code
2.1 Internal circular cutting saw blade
The shape and code of the internal circular cutting saw blade shall comply with the provisions of Table 1. Table 1
Internal circular cutting saw blade
2.2 Assorted files
The shape and code of assorted files shall comply with the provisions of Table 2. Name
Pointed flat file
Pointed semi-circular file
Pointed square file
Pointed equilateral triangular file
China Machinery Industry Federation 2001-03-29 approved 224
JB/T 7991. 1--2001
Replace JB/T7991.1--1995
2001-07-01 Implementation
Pointed round file
Pointed double-sided round flat filebzxz.net
Pointed knife-shaped file
Pointed blue angle file
Pointed double semi-circular file
Pointed elliptical file
Flat flat file
Flat equilateral triangle chain
Flat round file
2.3 Grinding head
The shape and code of the grinding head shall comply with the provisions of Table 3. Name
3 Binding agent code
The binding agent code for electroplated metal products is Me. Characteristic marking of electroplated superhard abrasive products
4.1 Writing order
Product shape, size, abrasive, particle size, binding agent. 4.2 Marking examples
JB/T 7997.1—2001
Table 2 (end)
4.2.1 Internal cutting saw blade
206X0.20X83×18
4.2.2 Assorted chains
NF1 140X50
4.2.3 Grinding head
1.5×3×30
120/140
JB/T 7991, 1--2001
325/400
Binder
One abrasive
Number of positioning holes n
-Inner diameter d
Total thickness T
One outer diameter D
-Shape code
Binder
One grain size
—Abrasive
One diamond layer length L
One total length L
-Shape code
325/400
One binder
One grain size
Axis length L
Spindle diameter Y
Diameter D
-Shape code
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