This standard specifies the energy consumption level of hammer groups in steam-air forging hammer workshops. This standard applies to steam-air dual-purpose open-die forging hammers and die forging hammers. JB/T 50180-1999 Energy consumption level of hammer groups in steam-air forging hammer workshops JB/T50180-1999 Standard download decompression password: www.bzxz.net

Mechanical Industry Standard of the People's Republic of China
JB/T50180-—1999
Energy Consumption Classification of Hammer Groups in Steam-Air Forging Hammer Workshop
(For internal use)
Published on December 30, 1999
National Bureau of Machinery Industry
Implemented on June 1, 2000
J/r50180-1999
This standard is a revision of ZBJ0!030—89 Energy Consumption Classification of Hammer Groups in Steam-Air Forging Hammer Workshop. The original standard was revised during the revision, but the main technical content remained unchanged. Appendix A of this standard is the appendix of the standard.
This standard replaces ZB1010.0-1 from the date of implementation. The Mechanical Science Research Institute proposed and supervised this standard. The drafting units: the Fourth Design Institute of the former Ministry of Machinery and Electronics Industry, and the Energy Conservation Center of the Hangzhou Machinery Industry Ministry. The main drafters of this standard: Sui Shaofeng, Liu Yiming. This standard was first issued in 1989.
Machinery Industry Standard of the People's Republic of China
Energy consumption classification of steam-air forging hammer workshop
[Internal use]
This standard specifies the energy consumption level of steam-air forging hammer workshop. This standard is applicable to steam-air dual-use forging hammer workshops and forging machines. Energy classification
JB/T50180-1999
ZB 0030-29
Energy consumption of forging hammer workshops is divided into first, second and first class according to the comparable unit consumption per ton of forgings. Except for the intervals where the comparable unit consumption does not reach the first-class level, the energy consumption classification of forgings is shown in Table 1.
Comparable unit turnover index
3 Calculation of comparable unit consumption of forgings
> 5.0--6.5
During the statistical period, after obtaining steam parameters, steam and long-term air conversion, and segment production correction, the unit output energy consumption calculated based on the approximate combined weight of qualified forgings is called the hypothetical comparable unit consumption and is calculated according to the formula [ ]: b
Where: ——Comparative unit grid, [steam more: Zhang
The steam consumption of a single forging hammer during the statistical period is 1; The compressed air consumption of a single moving hammer or dwarf hammer during the statistical period is km: -The static positive coefficient of the steam vertical number is obtained, table? ：
*—Conversion coefficient of compressed air and steam, -1, (1 km compressed air is equivalent to 1 t saturated steam)
Forging production stop coefficient, see Figure 3;
The total weight of qualified forgings produced by a single chain or hammer group during the statistical period, t. 4 Equivalent weight of forgings
Considering the weight of the forged parts, the average weight of the forging, the degree of forging complexation, and the influence of the material, the calculated qualified forging weight is called the forging equivalent weight. The calculation of the forging equivalent weight is shown in formula (2)-formula (6): G,=G+G
Approved by the State Machinery Industry Bureau on December 30, 1999 (2)
Implementation on June 1, 2000
JB/T50180—1999
Gg,9(z, + X)
G,-zgig (x.+t)j.
--the sum of the converted weights of qualified forgings produced by each forging hammer during the statistical period; formula:
G\the sum of the converted weights of qualified forgings produced by each die forging hammer during the statistical period, t: the converted weight of qualified forgings produced by a single die forging hammer during the statistical period, 1:t
the converted weight of qualified forgings produced by a single die forging hammer during the statistical period, t; the weight of qualified forgings produced by a single die forging hammer during the statistical period, 1:g the weight of qualified die forgings produced by a single die forging hammer during the statistical period, t2 or 9:--the correction coefficient for the average weight of forgings considering the weight of the forged parts that fall off, see table 4: The conversion coefficient of the complexity of forgings, see Table 5; Z.
Material coefficient of plated parts, see Table 6
5 kinds of coefficients
Steam barrier number positive coefficient, see Table 2
Yanqi rescue
will be positive series
Sex British steam
5.2 Loading parts production test correction coefficient m, see Table 3.19u9:
For workshops that produce both white forgings and forgings, the positive coefficient is taken according to the larger production. 3
Annual output of parts in the day
Fuel stock production is subject to
Correction coefficient m
E 20NX
>10002(K0
>200-300
>26-30ng
ser- rnn
5.3 Special consideration for the correction coefficient of the weight base of the forging drop part and the half-average weight of the forging. Or 4, see Table 4. When the weight of the part dropped by the hammer does not correspond to the half-average weight plate of the replacement part (Table 4), the average weight of the part shall prevail. -4
Forging boat drops all the weight
JB/TS1180-1999
Average weight of the piece
> 1 0-2.4
>F0.0~17.0
>17.0~-30.0
30.080.0
>20-60
>60-180
>18D~320
>320~700
The conversion coefficient of forging complexity is shown in Table 5. Forging complexity classification
Details: The most complex and beautiful is shown in Attachment A (standard reading) 5.5 Roller material peak positive coefficient X, see Table 6, Table 5
Positive coefficient
From the city 4
Steel grade example
Ordinary carbon steel
High quality carbon steel
Price safety system
Q235, 1.5--45
20CrM, 45CNi
15CrMn,350rMn
I2Cro, 20CrMnTi
15Cr~5DCr
40CrMnMo
40MnB3, 45Mn2
20MnVDbzxZ.net
6Additional parts for energy consumption grade assessment of forging hammer
JBT56180—1999
Missing
Alloy steel
Spring yellow steel
Alloy structural steel
17-T13,605i2
6rMn.bSMn
60Si 2Vn
H0Cx2MaV
5CrMnMo
GCr15SiMa
Stainless steel
Xie Rexie
Alloy 1. Adjustable
[Cr13-4Cr13
3Ct2W8
5Crw2Si
Cr12Moy
C'ri2 6.2 There must be statistics on the energy consumption of the workshop recorded on a daily, piece, quarterly and annual basis, and there must be records of the forging variety, annual output number, tonnage and hammer operation time of each hammer.
JB/T50180—1999
Appendix A
(Appendix to the standard)
Forging process classification
This standard classifies forgings according to the process of forging shape, and is divided into nine categories (Table A1.) Table AI
No shape
J8/T 54180-199
Table AI [Twist]
Example of shape
Horse rack expansion
JB/T 50180-1999
Table A1 ()
Steel
1:0<20
LTA<15
JB/T501801999
Table AI (complete)
Take the stop shape
L/pa20
Symbol in the table: - Starting industry: H - Maximum degree: one side length of a square, - Thickness change: one degree: D9, one width, 2 Folding system:
The nominal folding coefficient of each joint is as specified in Table 5. This standard is based on Class 1 parts as the standard: nominal folding coefficient 1), the limit damage can be confirmed under the "correct":
The root loss of the parts is based on the load number and Table 6 fast correction:
For the heat lock and then the mirror is replaced, according to its shape fast determination, it is lowered to a class - section (such as Class 1, downgraded to Class 1, this expansion), but see the first class, still calculated as Class 1.
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