This part specifies the dimensions and tolerances of support posts for die casting films. This part applies to support posts for die casting moulds. This part also gives material guidelines and hardness requirements, and specifies the marking of support posts. GB/T 4678.18-2003 Die casting mould parts Part 18: Support posts GB/T4678.18-2003 Standard download decompression password: www.bzxz.net

GB/T4678 "Die casting die parts" is divided into 19 parts: Part 1: Template; Part 2: Round insert; Part 3: Rectangular insert; Part 4: Shouldered guide pin; Part 5: Headed guide pin; Part 6: Headed guide bushing; Part 7: Straight guide bushing; Part 8: Push plate; Part 9: Push plate guide pin; Part 10: Push plate guide pin; Part 11: Push plate guide pin; Part 12: Push plate guide pin; Part 13: Push plate guide pin; Part 14: Push plate guide pin; Part 15: Push plate guide pin; Part 16: Push plate guide pin; Part 17: Push plate guide pin; Part 18: Push plate guide pin; Part 1 ... ||-Part 10: Push plate guide sleeve;
-Part 11: Push rod;
-Part 12: Reset rod;
Part 13: Push plate washer;
-Part 14: Limit pin;
Part 15: Cushion block;
Part 16: Flat push rod;
Part 17: Push tube;
Part 18: Support column;
Part 19: Positioning element.
This part is Part 18 of GB/T4678. This part is a newly formulated standard.
This part is proposed by China Electrical Equipment Industry Association. This part is under the jurisdiction of the National Technical Committee for Mould Standardization (SAC/TC33). GB/T 4678.18—2003
The drafting organizations of this part: Shanghai Pierburg Nonferrous Components Co., Ltd., Guangzhou Cavity Mold Factory, Guilin Electric Science Research Institute, Dongfeng Technology Automotive Braking System Co., Ltd., Chengdu Xingguang Die Casting Industry Co., Ltd. The main drafters of this part: Zhang Liangen, Cai Zijin, Weng Shizhen, Feng Bochun, Liao Hongyi, Yang Zhaoling, Huang Zhilu, Li Hongying, 75
GB/T4678.18—2003
Die casting die parts Part 18: Support columns
This part specifies the dimensions and tolerances of support columns for die casting dies. This part is applicable to support columns used for die casting dies. This part also gives material guidelines and hardness requirements, and specifies the marking of support columns. 2 Normative references
The clauses in the following documents become clauses of this part through reference in this part of GB/T4678. For any dated referenced document, all subsequent amendments (excluding errata) or revisions are not applicable to this part. However, parties to an agreement based on this part are encouraged to study whether the latest versions of these documents can be used. For any undated referenced document, the latest version applies to this part.
GB/T4679—2003 Technical conditions for die casting die parts 3 Dimensions and specifications
3.1 Type A support column
See Figure 1 and Table 1.
Surface roughness in microns
Surface roughness Ra=6.3μm without indication; chamfer 1mm×45 without indication. Figure 1 Type A support columnWww.bzxZ.net
3.2 Type B support column
See Figure 2 and Table 2.
Table 1 Dimensions of Type A supporting columns
Not specifiedSurface roughness Ra=6.3μm; Not specifiedChamfer 1 mm×45°200
Type B supporting columns
Table 2 Dimensions of Type B supporting columns
GB/T 4678.18--2003
Unit: millimeter
Surface roughness in micrometers
Unit: millimeter
GB/T4678.18—2003
4 Material and hardness
The material is selected by the manufacturer, and 45 steel is recommended; hardness 28 HRC～32 HRC.
Technical requirements
Should comply with the provisions of GB/T4679-2003
6 Marking
The supporting columns according to this part should have the following markings: a) supporting column;
b) types of supporting columns A, B;
c) diameter D of supporting column, in millimeters;
length L of supporting column, in millimeters;d
e) code of this part, i.e. GB/T4678.18-2003. Example 1:
A-type supporting column with D=40mm and L=80mm is marked as follows: Supporting column A 40×80
GB/T 4678.18—2003
Example 2:
B-type supporting column with D=40mm and L=80mm is marked as follows: B40X80GB/T 4678.18—2003
Supporting column
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