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
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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 application 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 270230215Www.bzxZ.net 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 Tip: This standard content only shows part of the intercepted content of the complete standard. If you need the complete standard, please go to the top to download the complete standard document for free.