GB/T 2855.11-1990 Die sliding guide die seat intermediate guide column circular upper die seat

GB/T 2855.11-1990 Punch die sliding guide die seat intermediate guide column circular upper die seat GB/T2855.11-1990 standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Sliding guide die sets for press tools
Intermediate guide pillar round upper die sets
Holder for sliding guide die sets for press toolsPunch holder for center pillar sets (round)Subject content and scope of application
GB/T 2855 .11 --90
Replaces GB2855.11--81
This standard specifies the materials, technical conditions, structural types and specifications of the intermediate guide pillar round earth die sets for the sliding guide die sets of press tools. This standard applies to the sliding guide die sets of press tools. Reference standards
GB/T12446 Technical conditions for die sets parts GB9439 Grey cast iron parts
3 Materials, technical conditions, structural types and specifications of die sets 3.1 Material: HT200 GB9439.
3.2 Technical conditions shall be in accordance with the provisions of GB/T12446. 3.3 The structural types and specifications are shown in the table. www.bzxz.net
Approved by the State Bureau of Technical Supervision on July 23, 1990, implemented on May 1, 1991
GB/T 2855.11-90
D, 160
3.4 ​​Marking example:
GB/T 2855.11-90
D for the perimeter of the die. =160mm, thickness H=45mm, intermediate guide column round upper die seat: upper die seat 160×45GB/T2855.11
210280
640758720
GB/T 2855.11--90
115100
Note: The shape and plane dimensions of the press plate are determined by the manufacturer. D(H7)
Basic dimensions
Additional instructions:
This standard is proposed by the Ministry of Machinery and Electronics Industry of the People's Republic of China. Limit deviation
Basic dimensions
This standard is under the jurisdiction of the National Mold Standardization Technical Committee. 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 Zhu 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. Limit deviation
M14—
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