GB/T 2855.2-1990 Die sliding guide die seat diagonal guide column lower die seat

This standard specifies the materials, technical conditions, structural types and specifications of the lower die seat of the diagonal guide column of the die sliding guide die seat. This standard is applicable to the lower die seat of the diagonal guide column of the die sliding guide die seat. GB/T 2855.2-1990 Die sliding guide die seat lower die seat with diagonal guide column GB/T2855.2-1990 Standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Sliding guide die sets for press tools
Diagonal guide pillar die sets
Holder for sliding guide die sets for press toolsDie holder for dlagonal pillar setsSubject content and scope of applicationwwW.bzxz.Net
GB/T 2855.2—90
Generation GB2855.2—81
GB 2855.1 --81
This standard specifies the materials, technical conditions, structural types and specifications of the diagonal guide pillar die sets for press tools. This standard applies to the sliding guide die sets for press tools. 2 Reference standards
GB/T12446 Technical conditions for die sets parts GB9439 Grey cast iron parts
Materials, technical conditions, structural types and specifications of die sets3
3.1 Material: HT 200 GB 9439.
3.2 Technical conditions shall comply with the provisions of GB/T12446. The structural type and specifications are shown in the table.
Approved by the State Administration of Technical Supervision in 1990-0723
-01 implementation
1991 - 05 -
H10~20
R20 -25
3.4 ​​Marking example:
GB/T2855.2—90
Die perimeter L=250mm, B=200mm, thickness H=60mm, diagonal guide column lower die seat; lower die seat 250×200×60GB/T2855.210
[]Die perimeter
125100
130110
170140
GB /T 2855 .2--90
270230215
die perimeter
400315
135210
500500
GB /T 2855.2--90
310||230255215
360230310
210370|2703t0
260445330385
410325550400475
650590580
d(R 7)
d(R 7)
Note: ( ) The shape and size of the pallet are determined by the manufacturer. ② When installing the B-type guide column, d (R7), d (R7) are changed to d (H7), d (H7). 12
[M16 ［ 32
GB/T2855.2--90
Additional Notes:
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. 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 Hua 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. 13
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