This standard specifies the technical requirements, test methods, inspection rules and marking, packaging and transportation of roll forging dies. This standard applies to hot roll forging blank roll forging dies and forming roll forging dies. JB/T 9195-1999 General Technical Conditions for Roll Forging Dies JB/T9195-1999 Standard download decompression password: www.bzxz.net

Machinery Industry Standard of the People's Republic of China
JB/T9195—1999
General Specifications for Roll Forging Dies
General Specifications for Roll Forging Dies Issued on 1999-06-24
National Bureau of Machinery Industry
Implementation on 2000-01-01
JB/T9195-1999
This standard is a revision of J46003-90 "General Specifications for Roll Forging Dies". No changes have been made to the original standard during the revision period, and the main technical contents have not been changed. This standard replaces ZB/T346003-90 from the date of implementation. This standard was proposed and approved by the National Standardization Technical Committee of the People's Republic of China. The responsible units for this standard are: Beijing Institute of Technology and Jilin University of Technology. The main drafters of this standard are Ren Guangsheng, Zhang Chengjian and Guan Zhi. tciwei
Machinery Industry Standard of the People's Republic of China
Roller forging dies
General technical conditions
Greneral bispecificatlons for rnll forging dieJB/T 9195—1999
ZB/T J46 003—
This standard specifies the technical requirements, test methods, inspection rules and common marking, packaging and transportation of roller forging dies. This standard is applicable to the manufacture of hot forging dies and forming dies 2 Reference standards
The provisions contained in the following standards constitute the provisions of this standard by being cited in this standard. At the time of publication of this standard, the versions shown are valid. All standards will be revised: the customer using this standard should explore the possibility of using the latest version of the following standards. GB/T 2301001 | | tt | 9154—1999
3 Technical requirements
3.1 Forging pattern
Metal test method
Metal Brinell hardness test method
Technical specifications for high-quality carbon structural steel
Technical conditions for alloy steel
1. Die casting carbon steel parts
Die forging die structure and size for hammer and large forging press
Select die materials according to Table 1.
Table 1 Silver-plated mold material
Material silicon number
2w8 (3Cr26
5CrNiMe
5CrMnMe
7G5C:rMmMuV
2G320-570
Non-standard number
GB/T1299
GB/T699
GDE 11352
Science: It is allowed to use a state number with similar length instead. Approved by the State Bureau of Machinery Industry on 1999-16-24 Scope of application
1) High quality, large batch size, mixed enough Huang 2! The color of my reunion is good
! 1) The mold for sealing the large-scale forming of ceramic teeth is a must-have! The mold is relatively large, and the mold is not too bad. 2) The new product trial production is limited to the model theorem 200-01-0 implementation
3.2 Intrinsic defects
[B/T9195—1999
Use hot rolled steel or forged modules, cast forgings are careful, and the internal dynamic points, cracks, shrinkage holes, looseness and other defects are not allowed
3.3 Forging ratio
The steel chain forging can be used for batch forging dies, and the design ratio meets the relevant provisions of GR 118. 3. Heat treatment conditions
3.4.1 The heat treatment hardness of the semi-finished forging die of the yoke whip die and the forging die is 197~241IIB. 3.4.2 The heat treatment hardness of the forging die with complex shape and the forging die is 38-44HRC~3.4.3 The heat treatment hardness of the forging die with simple shape and the forging die is 44-4BHRC3.5 Shape size
3.5.1 The shape and size of the forging die shall comply with the relevant provisions of 3B/T9194. 3.5. 2 The combination of silver-plated mold and silver forging is H9h93.5.3 type. The shape is determined according to the hot silver forging drawing. The size deviation is determined according to Table 2. Special circumstances are determined by both parties: Type 2 deviationwwW.bzxz.Net
Nominal size
>18-30
>30--50
>50-80
>80~12G
>124-181
≥180-250
>250-315
315-.46X2
>400~50D
>630~800
>800-1000
+\ hll
. 2.3c
cut or type
. 0.22
Note: The normal direction is the square width of the vertical point. 2
±0 SU
± G 50
3.6 Surface egg
JH/T9195-1999
3.6.1 The precision of the projection of the injection forging die shall comply with the relevant provisions of JB9194. 3.6.2 The surface of the hub die is not allowed to have defects such as pattern, folding, broken scar, pinching, fire sand, etc. The depth shall not exceed 2/1 of the single side margin.
3.6.3 The maximum allowable value of the surface roughness R is 1.6±m4 Test method
4.1 Intrinsic defect test
Use pulse reflection type ultrasonic flaw test method: Carry out comprehensive flaw detection test on the surface of the model according to the design.
4,2 Hardness test
4.7.1 The hardness test of the semi-finished product of the auxiliary forging and silver forging mold shall be carried out in accordance with the relevant provisions of GB231. 4.2.2 The hardness test of the die shall be carried out in accordance with the relevant provisions of GB/T230. 4.3 Inspection rules for the shape and size of the spring groove
4.3.1: The shape is generally tested by the sample. 4.3.2 The molds used for sample testing shall be tested. The mold testing process shall be strictly carried out in accordance with the annual production. The mold material grades shall meet the requirements of the product drawings.
sInspection rules
5.1 The forging dies shall be inspected by the quality inspection department of the manufacturer according to the forging drawings and this standard: 5.2 Each batch of forging dies shall have a quality guarantee certificate for the chemical composition and mechanical properties of the steel in accordance with the national standards. If the test results are in accordance with the national standard, the steel grade can be put into production. 5.3 The forging dies shall be tested for defects by ultrasonic flaw detection piece by piece. The detection method shall be B/T! 8, 5.4 The shape tolerance and size tolerance of the forming forging die shall be tested piece by piece with a sample, and those with deviations shall be scrapped. 6. Marking, packaging, and transportation
6.1 The forging die that has passed the inspection shall be stamped with a 10-character code by the manufacturer, including the material brand, manufacturer's mark, model number, etc., and coated with anti-rust oil.
6.2 The mold that has passed the acceptance shall be accompanied by an inspection certificate, which includes: a) Roller mold number:
b) Forging die name;
c) Material brand:
d) Heat treatment degree:
e) Contract number:
f) Factory name;
) Quality inspection pass mark
6.3 The packaging and transportation of forging dies shall be specified in the order agreement.
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