This standard specifies the type, technical requirements, measurement methods, inspection rules, marking and packaging of paper cutter blades. This standard applies to semi-finished blades used in paper cutters. JB/T 8115.2-2000 Paper cutter blades JB/T8115.2-2000 Standard download decompression password: www.bzxz.net

ICS37.100.10
Machinery Industry Standard of the People's Republic of China
JB/T 8115.1~-8115.2—2000
Paper Cutter
Paper cutter
2000-04-24 Issued
National Bureau of Machinery Industry
2000-10-01 Implementation
JB/7#15.2m-2000
This standard is not equivalent to the blade mentioned in the standard "semi-product blade" of Sichuan SB4707:1992 Paper Cutting Machine Blade" and is consistent with 8B4747-.
This standard is a revision of JB8115.2.-95 Paper Cutting Machine Blade. During the revision, the original thin structure, technical requirements and specifications GB/T1.3-1997 were added with corresponding tolerances. The 4th standard is JB/T 01IS The second part of the "Paper Cutter" series of standards, which includes the following parts: B/TS15.1-20NI Paper Cutter
JB/TS115.2-200U Paper Cutter Blade
This standard replaces B81152-95 from now on. The National Technical Committee for Standardization of Machinery and Equipment proposed and issued this standard. The main units: Shanghai Aikesi Machinery Blade Co., Ltd.: Shanghai Shenweida Machinery Co., Ltd., Hunan Machinery Blade Factory, etc. The main drafters of the standard: Chen Yangmin, Mi Derong. 13
Machinery Industry Standards of the People's Republic of China
Paper Cutter Blade
Knives for paper cutting machinesJB/T8115.2—2000
代巷[B/T 8115.2-95
This standard specifies the type, technical requirements, test methods, inspection specifications, marking and packaging of paper cutting machines. This standard applies to semi-finished blades used in paper cutting machines. 2 Reference standards
The provisions contained in the following standards constitute the provisions of the standard through reference in this standard. When this standard is published, the versions shown are not all valid. All standards will be subject to review. The parties who apply this standard should explore the possibility of applying the latest versions of the following standards. GB.T700—1988
GB/T 1031-[995
GB/ 1214-1996
G8/4 1216--1985
GB:T 1299--1985
G3/T 2829[987
GB/T 4879—19BS
GR.T 6060.2—1985
GR.T 6062-19B5
GA/T 609[:-1985
GB/T 6315- 1996
GD:T 9943- 1988
QBT3859—1999
JBT284B—1992
JB.' 79751999
JB/T 7979--1995
3 Type
Carbon decay structural steel
Surface mechanical parameters and their values
Tide mark type micrometer
Outside diameter micrometer
Technical conditions for alloy tool steel
Interval control counting selection storage and sampling table [Applicable to the inspection of production process stability] Rust-proof packaging
Surface torsion comparison sample machine city lower surface
Wheel rate method stylus surface roughness measuring instrument wheel marker and center line wheel mouth ruler
Vernier square angle ruler
Shanghai tool steel technical plan
Steel ruler
Consumer thin connection technical conditions
Rock board||tt ||The appearance and names of various parts of paper cutter blades are as shown in the table. Approved by the State Machinery Industry Bureau on April 24, 2000 and implemented on October 1, 2000.
4 Technical requirements bzxZ.net
3B/T8115.2—2000
1 The appearance and names of various parts of the blade
The blade of the paper cutter shall comply with the provisions of this standard and be manufactured according to the drawings and technical documents approved by the prescribed procedures. 4.1 Material
The blade shall be ordinary steel specified in GB/T700, and the blade shall be alloy steel specified in GB/T1299 or high-speed tool steel specified in GD/9943.
4.2 Basic parameters
The basic parameters of the blade shall be as specified in Table 1.
Table 1 The effective length!
The original material B
The hardness H
is the blade safety general
use!
4.3 Hardness
JB/T B1157—20H
Table【(3 yuan)
H
State angle:
The small body hardness value is not more than 240H: The hardness value of the knife is 60-65HRC, and the hardness of the same piece is 3 HRC units. 4.4 Shape and position tolerance of the blade
4.4.1 The straightness tolerance of the blade is 0.3mm, and the back shall not be convex. 4.4.1 The straightness tolerance of the front of the blade is 0.03mm, which should be flat. 4.4.3 The straightness tolerance of the front length of the sheet shall comply with the provisions of Table 2. Table 2 Straightness Tolerance
Sheet length
≥1055-1520
>1520-1850
4.5 The surface roughness of the blade steel surface
The surface roughness of the blade steel surface shall comply with R1.6μ specified in GBT1031. 4.6. Durability
Linear spot tolerance
Cutting machine
The number of hot cutting times for each sharpening of the blade shall not be less than 300 times, and the cut paper shall not have adhesion, burrs or obvious knife flowers caused by the blade.
4.7 Surface quality
4.1 The surface of the blade steel surface shall not have defects such as cracks and scallops. 4.7.2 The blade surface shall be smooth and well-jointed, without visible pits, burrs, rust, bumps, scratches, etc. 5 Measurement method
Measurement shall be carried out according to the provisions of Table 3.
Width and thickness difference
Small double angle
Thickness difference
True measurement of blade
Length of blade front
Linear measurement in the direction
Facing measurement of blade
Linear measurement in the direction
Surface roughness
Limiting method
Use a caliper to measure the blade width. The blade length in the middle is at the same position. Use a caliper to determine the blade measurement.
.30mm near two points and near the center
The width of the same point, the middle| |tt|| is measured as the thickness of the small piece. The largest difference in the value
is the width difference. Use a universal angle ruler to measure the length
and the direction of the lamp mouth is convenient for the angle
. Use a dry needle ruler to fine-tune the original back
tOtmn, 50mm away from the two points.
Also attach the two points and the point where the middle position is actually
, the measured
of the middle position is the thickness value, and the largest difference in the two values ​​is the thickness difference.
Place the blade for measurement on the
plate (or use a ruler to plug the
ruler to produce the same
The force piece is measured in the position of the flat surface [or ruler), 1 with a feeler gauge on the front of the piece, the most accurate position, with a surface pressure gauge, special sample fast match, Japanese 8115.2-2000, table 3 measurement, Chinese version or center, along the ball has R, QB/T3819 regulations, tape measure, GB/T214 regulations, coupon card, GBT63 13 specified
Sichuan ester angle limit
GB/T1216 heat-set
outer diameter bisection ruler
B/T7975 specified
flat (or ruler and
7979 burnt plug
3B/T7975 specified
flat or ruler and B
plug
G specified
J port self-scale and IB/T
7470 heat-set race scale
CB/T6062 ship-set
fabric sweeping micro-oxygen reaction and
GE/T60X0.2 The specified inspection rules for the rough and fine ratio of agricultural surface sample pieces are as follows: the maximum hardness measurement is carried out, and the middle of the width of the blade steel surface is determined. The middle point along the length is 150mm near the two ends, and the middle front point is the lowest point as the blade hardness value. The maximum hardness difference at one point is the same piece hardness difference. The manufacturer will add the piece to the finished product requirements. The face sample is a piece, the cutting height is 75mm, and 270gm cardboard is selected. 6.2 Inspection |JB/T8115.2-2000
Table 3 is complete)
Li Cao Business Park
6.1. Blades must be inspected and qualified by the quality inspection department of the manufacturer before they can leave the factory, and they must be accompanied by a product certificate.
BT2848
You's iodine meter
6.1.2 Blade quality inspection: 5% of the inspection pieces shall be randomly inspected (if there are less than 100 pieces, 5 pieces shall be inspected), and they shall meet the requirements of 4.3. If one piece fails to meet the requirements, it shall be re-inspected. If there are still 10 pieces that fail to meet the requirements, all the inspection pieces shall be accepted. 6.1.3 Before the blades leave the factory, the basic parameters of the blades shall be inspected piece by piece according to the requirements of Table 3. The shape and position tolerance of the blade, the surface roughness and surface quality of the blade steel surface shall meet the requirements of 43, 4.4, 4.5 and 4.7. 6.1 Type inspection
6.2.1 Type inspection shall be conducted in any of the following cases: when a new product is trial-produced or an old product is transferred to production for appraisal; 6) when a product is resumed after being discontinued for half a year; 7) when normal continuous production shall be conducted once every two years. 6.2.2 Main inspection contents
6.2.2.1 Blade manufacturing quality
a) Defect classification shall be in accordance with the present situation in Table 4.
b) The support plan shall be carried out according to the sampling rate specified in GB/T2829. Class B and Class II are sampled at the same time according to the discrimination level. The minimum number of samples selected in the unqualified quality level is sampled. The unqualified quality level RQL. The value is selected according to the provisions of Table 5. 6.2.7.2 The durability test is carried out according to the provisions of Table 3 and shall comply with the provisions of 4.6: If there is one unqualified piece, it shall be judged as unqualified. Defect classification
Marking and packaging
JB/E 8t15.2-100
4 defect classification
a) Surface quality of knife steel surface:
Thickness tolerance
Tolerance of same lift:
Roughness of blade stop surface:
Tolerance of blade warp
Tolerance of blade spread:
b) Tolerance of same blade thickness
B) Tolerance of same blade width:
b) Width tolerance:
Center length tolerance:
Straightness of blade front width direction:c) Point and line tolerance of blade front length direction
Blade mark, packaging, shank certificate, packing list, etc. Blade angle tolerance
hy Blade surface quality
Table 5 Unqualified quality level Average RQL value
了，1Each blade should have a trademark, full year and month, inspector's seal and manufacturer's name. 7.2The anti-corrosion packaging of the blade shall be in accordance with the provisions of B48.9T.3The following documents shall be attached to the packaging box:
a) Packing list:
) Product certificate (should have the applicable standard number): c) Product instruction manual.
T.4The markings on the outer surface of the packaging box should include the following: a) Product name, specification, number:
b) Box size (length × width × weight): c) Manufacturer's name or corporate logo.
了，The blades should be stored in a ventilated and dry warehouse. Under normal storage conditions, the anti-rust period shall not be less than half a year, C
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