GB/T 2856.2-1990 Die rolling guide die seat diagonal guide column lower die seat

GB/T 2856.2-1990 Die rolling guide die seat diagonal guide column lower die seat GB/T2856.2-1990 standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Die rolling guide die sets
Diagonal guide pillar die sets
Holder for ball slide die sets for press toolsDie holder for dlagonal pillar setsSubject content and scope of application
GB/T 2856.2 --90
Replaces GB 2856.2-81
This standard specifies the materials, technical conditions, structural types and specifications of die rolling guide die sets and diagonal guide pillar die setsThis standard applies to die rolling guide die sets. Reference standards
GB/T12446 Technical conditions for die set partsGB9439 Grey cast iron parts
3 Materials, technical conditions, structural types and specifications of die sets3.1 Material: HT 200 GB 9439
Aging treatment twice.
According to the provisions of GB/T12446.
3.2 Technical conditions
3.3 Structural types and specifications are shown in the figure and table.
Approved by the State Administration of Technical Supervision on July 23, 199060
Implementation on May 1, 1991
R10~20
GB/T 2856.2-90
3.4 ​​Marking example:
Die perimeter L=200mm, B=160mm, thickness H=55mm, diagonal guide column lower die seat: lower die seat 200×160×55GB/T2856.261
Die perimeterbzxz.net
GB/T2856.2—90
Note: The shape and plane dimensions of the platen are determined by the manufacturer! "Decision. s.
Additional Notes:
This standard is proposed by the Ministry of Machinery and Electronics Industry of the People's Republic of China. R
5510032
d, (R7)
-0.041 25
This standard is under the jurisdiction of the National Technical Committee for Mould Standardization. This standard was drafted by the Mould 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 Guangwei. This standard is entrusted to the Mould Branch of Guilin Electrical Science Research Institute of the Ministry of Machinery and Electronics Industry for interpretation.62
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