JB/T 1647-1999 JB/T 1647-1999 Closed single and double point press types and basic parameters JB/T1647-1999 Standard download decompression password: www.bzxz.net

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Machinery Industry Standard of the People's Republic of China
JB/T1647—1999
Closed Single-point and Double-point Presses
Types and Basic Parameters
Published on 1999-05-14
National Bureau of Machinery Industry
Implemented on 2000-01-01
JB/T1647—1999
This standard is a revision of JB1647—77 "Closed Single-point and Double-point Presses Types and Basic Parameters". The technical content of this standard is basically the same as that of JB1647—T7, and it has only been re-edited according to relevant regulations. This standard shall be implemented from January 1, 2000. This standard replaces JB1647—77 from the date of implementation. This standard is proposed and managed by the National Technical Committee for Forging Machinery Standardization. This standard was drafted by: Jinan Foundry and Forging Machinery Research Institute. This standard was first issued in November 1977. Scope
Mechanical Industry Standards of the People's Republic of China
Closed Single-point and Double-point Presses
Types and Basic Parameters
This standard specifies the types and basic parameters of closed single-point and double-point presses. This standard applies to newly designed general-purpose closed single-point and double-point presses. 2 Types
The types of presses are divided into closed single-point presses (Figure 1) and closed double-point presses (Figure 2). 3 Basic Parameters
JB/T1647-1999
Replaces JB1647-77
The main parameter of closed single-point and double-point presses is nominal force. The nominal force range of each type of press shall comply with the provisions of Table 1. 3.1
3.2 The basic parameters of closed single-point and double-point presses shall comply with the provisions of Table 2 and Table 3. Table 1 Nominal force range of closed single-point and double-point presses Type
Closed single-point press
Closed double-point press
Note: Closed double-point presses with a nominal force greater than 250001N can be ordered as needed 3.3 Accessory stretch pad series parameters| |tt||Approved by the State Machinery Industry Bureau on May 14, 1999
1600~20000
1600-4000
1600~25000
Implemented on January 1, 2000
JB/T1647—1999
The series parameters of the accessory stretch pads for closed single- and double-point presses shall comply with the provisions of Tables 4 and 5.
Nominal force
Nominal force
Nominal force
Slider stroke S
Nominal force
2 Closed double-point press
Table 2 Basic parameters of closed single-point press
Number of slider strokes
Maximum die
Die height
Adjustment amount
Table 3 Basic parameters of closed double-point press
Slider stroke
Maximum die||tt ||Mold loading height
Adjustment amount
Between guide rails
Between guide rails
Bottom of slider
Bottom of slider
Workbench
Workbench size
Nominal force of press
Pressing force of stretching pad
Stretching pad stroke
Nominal force of press
1647—1999
Table 4 Attachment of stretching pad for closed single-point press Series parameters 2000
Table 5 Accessories of closed double-point press Series parameters of stretch pad 2500
Stretch pad
Compacting force
Stretch pad
1647—1999
Note: The S value at * is determined by negotiation between the user and the design and manufacturing unit 4
Mechanical industry standards
Closed single and double-point presses
Types and basic parameters
JB/T1647-1 999
Published by the Machinery Standardization Research Institute of the Ministry of Machinery Industry Printed by the Machinery Standardization Research Institute of the Ministry of Machinery Industry (No. 2 Shouti South Road, Beijing, zip code 100044)
Format 880×1230
Printing Sheets 12
Word Count 10,000
First Edition September 1999
First Printing September 1999
Price 5.00 Yuan
Print Quantity 1-500
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