JB/T 1843-1999 This standard is a revision of JB 1843-77 "Types and basic parameters of die forging hammers". During the revision, editorial changes were made according to relevant regulations, and steam consumption parameters and external dimensions were added. This standard specifies the types and basic parameters of general-purpose die forging hammers. This standard is applicable to steam (or air) driven die forging hammers. This standard was first issued on October 1, 1977. JB/T 1843-1999 Types and basic parameters of die forging hammers JB/T1843-1999 Standard download decompression password: www.bzxz.net

ICS25.120.10
Machinery Industry Standard of the People's Republic of China
JB/T1843-1999
Die forging hammer
Types and basic parameters
Die forging hammer Types and basic parameters Issued on 1999-06-28
National Bureau of Machinery Industry
Implemented on 2000-01-01
JB/T1843-1999
This standard is a revision of JB1843-77 "Die forging hammer types and basic parameters". Compared with JB1843-77, the main technical content changes of this standard are: steam consumption parameters and external dimensions are added to the basic parameters.
This standard replaces JB1843-77 from the date of implementation. This standard is proposed and managed by the Technical Committee for Standardization of Metallurgical Equipment. This standard was drafted by: First Heavy Machinery Group Corporation. This standard was mainly drafted by: Yuan Feiren, Fu Wei. This standard was first issued in October 1977. 1
Machinery Industry Standard of the People's Republic of China
Dieforging hammer types and basic parameters
Dieforging hammerTypes and basicparametersThis standard specifies the types and basic parameters of general-purpose die forging hammers. This standard applies to steam (or air) driven die forging hammers. 2 Types and basic parameters
2.1 The structural type of the die forging hammer is shown in Figure 1.
2.2 The basic parameters of the die forging hammer shall comply with the provisions of Table 1. Approved by the State Machinery Industry Bureau on June 28, 1999, JB/T1843-1999 replaces JB1843-77 and was implemented on January 1, 2001. Nominal mass of falling part Striking energy Cylinder diameter D Maximum stroke of hammer H Guide rail spacing B Hammer length L Length of die base L tt||Minimum closed height of forging die h
Overall dimensions
(front and back × left and right × height above ground)
Anvil mass
Steam consumption
Steam (or air) working pressure
Steam temperature
≥25000
1843-1999
≥50000
2380×1330
X 5050
2960×1670
≥75000
3260×1800
X 6035
≥125000
3700×2090
≤200
≥250000
4400×2700
≥400000
4500×2500
Note: The striking energy is approximately calculated and determined based on the weight of the falling part, the maximum stroke of the hammer head and the steam (or air) working pressure of 0.7MPa. 2
Mechanical Industry Standard
Types and Basic Parameters of Die Forging Hammer
JB/T1843-1999
Published and issued by the China Academy of Mechanical Science
Printed by the China Academy of Mechanical Science
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Format 880×12301/16 Printing Sheet 1/2 Number of Words 6000First Printing in December 1999
First Edition in December 1999
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Price 500 Yuan
No. 99-1211
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