GB/T 2856.1-1990 Die rolling guide die seat diagonal guide column upper die seat

GB/T 2856.1-1990 Die rolling guide die seat diagonal guide pillar upper die seat GB/T2856.1-1990 standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Punch rolling guide die sets
Diagonal guide pillar upper die sets
Holder for ball slide die sets for press toolsPunch holder for diagonal pillar setsSubject content and scope of application
GB/T 2856 .1 --90
Replaces GB 2856.1—81
This standard specifies the materials, technical conditions, structural types and specifications of the diagonal guide pillar upper die sets of the punch rolling guide die setsThis standard applies to the punch rolling guide die sets. Reference standards
GB/T12446Technical conditions for die sets partsGB9439Grey cast iron parts
3Material, technical conditions, structural types and specifications of die sets3.1 Material: HT 200 GB 9439.
Aging treatment twice.
3.2Technical conditions shall be in accordance with 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 in 1990-0723
Implemented in 1991-05-01
GB/T 2856.190
3.4 ​​Marking example:
Die perimeter L=200mm, B=160mm, thickness H=45mm, diagonal guide pillar upper die seat: upper die seat 200×160×45GB/T2856.158
Die perimeter
Additional instructions:
2856.1—90
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. Limit
This standard is 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. Limit
This standard is entrusted to the Mold Branch of Guilin Electrical Science Research Institute of the Ministry of Machinery and Electronics Industry to interpret. tbZxz.net
M6 -6 H
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