JB/T 9168.11-1998 General process code for cutting

JB/T 9168.11-1998 JB/T 9168.11-1998 General process code for cutting JB/T9168.11-1998 Standard download decompression password: www.bzxz.net

Ks 25.020
Machinery Industry Standard of the People's Republic of China
JB/T9168.1~9168.13-1998
Common process instructions for cutting
Common process instructions for cutting1998-11·16issued
National Machinery Industry Standard
199812-01implemented
Machinery Industry Standard of the People's Republic of China
Common procedures instructionsProcess instroctiong for laying offJI/T:9168.11—1998
Replaces J37.11-6
This standard specifies the cutting rules that should be followed for a certain material and is applicable to all enterprises for cutting of the same material. Cutting should also comply with the provisions of /T8, [2 Referenced Standards
The following standards contain the provisions. Through reference in this standard, they constitute the meaning of this standard. When this standard is issued, the versions shown are valid. All standards will be revised. The party using this standard should control the possibility of using the new version of the following standards. 11118.1198 General Rules for Cutting General Principles
Preparation before Cutting
3. Check the specifications, size, quantity, etc. on the cutting list. 3.2 Check whether the specifications are consistent with the requirements of the cutting list. Material substitution must be strictly followed. 3.3 Check whether the appearance quality of the right material (pool marks, delamination, deformation, corrosion, etc.) meets the relevant quality regulations. 3.4 Put the material lists of the same material and specifications used for different workpieces into consideration to consider whether they can be used. 3.5 and materials
3.5.1 With irregular shapes, such as vehicle reports, general plans, etc., when cutting, the irregular parts must be left out. 3.52 When cutting, the material should be cut in a special way, and the appropriate margin should be cut. 3 If there is no equipment for cutting the fixed-length baffle, the size requirements must be measured before cutting, and the work must be reliable. 4 Cutting
4.1 Before cutting
4.1.1 Steel, shearing is also preferred for cutting. 4.1.2: When cutting, the cutting blade must be sharp and should be adjusted according to the original material board. See Appendix A (for the reduction of the H block. 4.1.3 The material head after cutting must ensure that the pressure plate of the pelletizing bed is pressed. 4.1.4 When cutting, the irregular ends should be removed first. 4.1.5 The edge section should not be torn or pressed. 4.2 Before cutting, the cutting system should be replaced according to the thickness of the material to be cut: refer to Appendix B (for the reduction of the door, adjust the belt length, and ignite the test vehicle. 4.2. 1
Rear marking agent.
4.2.2 Gas cutting, each side should be properly added, the gas cutting machine outside the spare belt with the attached rope
4.2.3 After gas cutting, the gas cutting surface should be polished clean of oxides. Approved by the State Machinery Industry Bureau on November 16, 1998 and implemented on December 1, 1998
4.3 Sawing cutting
JD/T 9I68. 1
4.3, 1 Steel: When cutting, the grade and current speed of the material should be collected. Wax or steel sheet. When sawing tube cutting, the process is appropriate. The sawing process of various profiles is shown in the attached instructions) 4. 3. 2
4.4 When cutting with a thin grinding wheel, the process should refer to Appendix E (Suggestive Appendix), 28
JH/T9168.11-1998
(Suggestive Appendix)
Relationship between the blade clearance and plate thickness when cutting steel root and the blade clearance and plate thickness when cutting steel plate. Table A1 Table A1
River surface road
Air cutting Selection of time-judgment nozzle specification
Appendix B
(Appendix of prompts)
Selection of time-judgment nozzle specification number when cutting materials
Selection of time-judgment nozzle specification number when cutting materials Table I. Plate
Manual mouth single
Motorized control variable
Translation control speed
Motorized control speed
>(6--15
4-5--3
>10~ 23
>100--159
>40~60
-13G~-18n
JB/T9168.11--1998
(Prompt Attachment)
Manual pneumatic cutting rough edge processing allowance C1 Manual, cutting rough edge processing allowance for each side of the manual pneumatic cutting rough edge processing allowance for each side of the manual pneumatic cutting rough edge processing allowance see Table 1 Table 1
Rough length or diameter
>100 --250
>25c--63D
>630--1000
>1:~1E0
60--100
>130--155
>200--255
>250--303
2~1n~·2nn
2>2-9~20f
Common profile width cutting process allowance
JB/T9168.11-199R
(Left shows the shooting record)
Common profile sawing process allowance
With the temporary cutting process allowance table 7. Long
Shooting distance
_3a ~85
IUu× 6x
4?×6h--F$×S0
：Use piece》
Zhouzhou BoyuwwW.bzxz.Net
5xcG100--0(
09~500
E1 Thin slice grinding wheel blanking process allowance
Thin slice grinding wheel blanking process allowance see Table E1. Diameter or
To the distance
t00150
.[3/T9168.11-1998
(Appendix of suggestion)
Mold slice grinding wheel blanking process allowance
1C--5GOG
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