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
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National Standard of the People's Republic of ChinabzxZ.net 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. t M6 -6 H 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.