GB/T 2856.6-1990 Die rolling guide die base four guide column lower die base

GB/T 2856.6-1990 Punch die rolling guide die seat four guide column lower die seat GB/T2856.6-1990 standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Die rolling guide die set
Four guide pillar die set
Holder for ball slide die sets for press toolsDie holder for four pillar setsSubject content and scope of application
GB/T 2856.6--90
Replaces GB2856.6-81
This standard specifies the materials, technical conditions, structural types and specifications of the four guide pillar die sets for die rolling guide die sets. This standard applies to die rolling guide die sets. Reference standardswww.bzxz.net
GB/T12446 Technical conditions for die set parts GB9439
Gray cast iron parts
3 Materials, technical conditions, structural types and specifications of die sets3.1 Material: HT200GB9439. Aging treatment twice. 3.2
Technical conditions
According to the provisions of GB／T12446.
3.3 The structural type and specifications are shown in the table.
Approved by the State Administration of Technical Supervision on July 23, 1990, 72
1991-6501 for implementation
GB/T 2856.6--90
3.4 ​​Marking example:
Die perimeter L=200mm, B=160mm, thickness H=55mm, four-guide column lower die seat: lower die seat 200×160×55GB/T2856.673
Die perimeter
4035170
20015540
GB/T2856.6—90
Note: The shape and plane size 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. S
This standard was drafted by the Mold Branch of Guilin Electrical Science Research Institute of the Ministry of Machinery and Electronics Industry. The main drafters of this standard are Wang Huachang and Qin Wei. This standard is entrusted to the Mold Branch of Guilin Electrical Science Research Institute of the Ministry of Machinery and Electronics Industry for interpretation. Limit
M14--6 H
0.050|M16--6 H
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