GB/T 2855.5-1990 Die sliding guide die seat rear guide column upper die seat

GB/T 2855.5-1990 Punch die sliding guide die seat rear guide post upper die seat GB/T2855.5-1990 standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Sliding guide die set for punching tools
Holder for sliding guide dle sets for press toolsPunch holder for back pill ar setsSubject content and scope of application
GB/T 2855.5—90
Replaces GB 2855.5-81
This standard specifies the materials, technical conditions, structural types and specifications of the upper die set of the rear guide column of the sliding guide die set for punching tools. This standard applies to the sliding guide die set for punching tools. Reference standards
GB/T12446 Technical conditions for die set parts GB9439 Grey cast iron parts
3 Materials, technical conditions, structural types and specifications of die sets3.1 Material: HT200GB9439.
3.2 Technical conditions shall be in accordance with the provisions of GB/T12446. 3.3 Structural types and specifications are shown in the figure and table.
Approved by the State Administration of Technical Supervision on July 23, 1990, 14
Implemented on May 1, 1991
GB /T 2855.5---90
L× B≤200×160
3.4 ​​Marking example:
R～25
GB/T2855.5—90
L×B.200×160)
Die perimeter L=200mm, B=160mm, thickness H=45mm, rear guide column. Upper die seat: upper die seat 200×160×45GB/T2855.516
Die perimeter
GB/T 2855.5-- 90
Die perimeter
GB/T 2855.5--90
Note: The shape and plane dimensions of the platen are determined by the manufacturer. Additional remarks:
This standard is proposed by the Ministry of Machinery and Electronics Industry of the People's Republic of China. This standard is under the jurisdiction of the National Technical Committee for Mold Standardization. R
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This standard was drafted by the Mold Branch of Guilin Electric Science Research Institute of the Ministry of Machinery and Electronics Industry. The main drafters of this standard are Wang Huachang and Qin Guangwei. This standard is entrusted to the Mold Branch of Guilin Electric Science Research Institute of the Ministry of Machinery and Electronics Industry for interpretation. 18
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