JB/T 8798-1998 This standard specifies the technical requirements, bending test, performance test, marking and tooth type code, logo and packaging of bimetallic band saw blades (hereinafter referred to as band saw blades). This standard is applicable to band saw blades with a size of 19.00mm×0.80mm~38.00mm×1.25mm and teeth made of high-speed steel or high-performance high-speed steel. JB/T 8798-1998 Technical conditions for bimetallic band saw blades JB/T8798-1998 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T 87981998
Bimetallic Band Saw Blade
Published on July 17, 1998
National Machinery Industry Bureau
Technical Conditions
1998-12-01 Implementation
m/T8798-1998
Appendix A of this standard is the appendix of the report.
This standard is proposed by the National Standardization Technical Committee of the State Administration of Industry and Commerce. The rate standard is under the jurisdiction of the Chengdu Tool Research Institute of the Ministry of Machinery Industry. This standard was drafted by Heng, Muxi Tool Factory, Hunan Machine Tool Factory. The drafters of this standard are Zhang Jihua and Zhong Xishi. This standard was first issued on July 17, 1998. Introduction
1 Scope
Machinery Industry Standard of the People's Republic of China
Bimetallic Band Saw Blade
Technical specifications
JB/T8798-1998
This standard specifies the technical requirements of bimetallic band saw blades (digital simplified band saw blades), bending test, band energy test: marking and national model code logo rental packaging
This standard is applicable to saw blades with dimensions of 19.00mm, 0.80mm--38.00m, 1m×1.25mm and the tooth material is high-speed copper or high-performance high-speed relative.
2 Cited standards
The texts contained in the following standards are also cited as the texts of this standard through reference in the standard. The versions shown are valid at the time of publication of this standard. All standards will be revised. The possibility of applying the latest versions of the following standards will be discussed. JH/T5631397 Metal Belt Strips
3 Technical requirements
3.1.1 The surface of the strip should be free of defects such as cracks, scratches, blunt edges, etc. that affect the performance. The welds should be dense and dense, especially the defects such as false welds, pores, slag, etc.
3.1.2 The teeth of the strips should be evenly spaced, the tooth shape should be correct, and there should be no roughness on the teeth. 3.2 Roughness of the surface of the belt strip:
Tooth front and back: R.3.2m:
Aluminum strip surface: R,1.6pm
3.3 Dimensions and tolerances
The dimensional tolerance and geometric tolerance of the belt strip shall comply with the provisions of JB/T7953. 3.4 Hardness
3.4. Tooth hardness of the belt strip
a) The hardness of the tooth part of the steel used shall not be less than 65HRCF) The hardness of the tooth part of the steel used shall not be less than 67IIRC. 34.2 The back hardness of the saw blade shall not be less than 62[V4 Bend test
The weld of the single saw blade shall be subjected to the bending test, and the test is the method shown in the Appendix A (instructions). S performance test
For the toothed production of calcium strips, each batch should be tested for cutting performance. Approved by the State Machinery Industry Bureau in 1998-1717
199812.01 implementation
s.! Test piece
JD/T 879A1998
5, 1.1 Machine tool: horizontal belt exhaustion machine that meets the requirements of precision, 51.1 Test: material is 1= steel regrind treatment. The specification of the North Hard Seat 4~871IRC is 65~Cmm: 5. 1.3 Cutting tool; sample size is 3 pieces,
5.1.4 Cutting officer, be: fully cooled during cutting. Its flow rate is not more than 5L/min. 5.1.5
The cutting thickness specification is in accordance with the provisions of clothing 1.
Nephritis
(step)
High performance high connection
~35.10×1.25
30--45
Each piece time reflection
2. 5-- 3. 0
.11~2.m
Same as the previous
1 When conducting trial adjustment, the rate of lead cutting should be passed first, that is, the speed should be reduced to the 23~sU ring specified in the standard, and the production area should reach 9~acem! 、
3 years of cutting service standard before cutting, the sequence will be marked virtual strength new retreat height, point to the cutting specification and, 5.2 test results, evaluation
cutting can be honest test piece of the section, there should be no front edge, two cracks, flashing and obvious phenomenon, and can continue to use. Band saw blade marking and tooth shape code
61 Band saw blade marking content
Double gold room belt sample. Material width × thickness × tooth × tooth shape: single root (study length B/T8708-1W86.2 Band saw blade tooth shape code village standard brand
) joint tooth shape or normal tooth shape batch today
b) step tooth shape code:
uniform tooth shape code
test material brand refers to the tooth material state brand.
For example,
The tooth material is steel W6Mn5Cr4V2, 2mm pitch, n.9mm net, 4rm pitch, standard tooth shape. The length of a single (30mm) is 30mm. Its mark is:
Bimetallic belt 6Mc5C4225>0.9x4×RtX3JB/TB798-198.
7.1 Marking Www.bzxZ.net
7.1.1 The product should be marked with:
a) Manufacturer's trademark:
b) Belt stripe mark;
\) Year and month of production.
7.1.2 Marking on the packaging plate (lead):
a) Manufacturer's name, address and trademark!
) Marking of pin strip:
e) Quantity (m for batch packaging);
) Factory batch number and box number (for batch packaging): 2
) Volume and vertical length of packing box (for batch packaging) F) Moisture-proof mark:
Manufacturing year, years.
7.2
JB/T8798-1998
7.2.1 Section 7.2.1 The rust-proof of steel bars should be done before packaging. The single steel bar with a tooth depth of 1.3m should be embedded in the steel bar, and the tooth tip should not be exposed. 1.2.2 The band must be packed firmly and can prevent damage during transportation and inspection. A Test method No. 8-J998 Appendix A (Reminder) Bimetallic band saw welding joint bending test method The band should be half the distance on the test barrier. After relaxation, the band (including the band part) should be naturally straight (see Figure A1), and the number of changes should not exceed times. The diameter of the test piece to be burned is the diameter of the test sample to be wound. See A1. The tear strip size is bulging.
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