This part specifies the dimensions and tolerances of locating elements for die casting moulds. This part is applicable to locating elements for die casting moulds. This part also gives material guidelines and hardness requirements, and specifies the marking of locating elements. GB/T 4678.19-2003 Die casting mould parts Part 19: Locating elements GB/T4678.19-2003 Standard download decompression password: www.bzxz.net

GB/T 4678.19—2003
GB/T4678 "Die Casting Die Parts" is divided into 19 parts: Part 1: Templates;
Part 2: Circular inserts;
Part 3: Rectangular inserts;
Part 4: Shouldered guide pins;
Part 5: Headed guide pins;
Part 6: Headed guide bushings;
Part 7: Straight guide bushings;
Part 8: Ejector plates;
Part 9: Push plate guide column;
Part 10: Push plate guide sleeve;www.bzxz.net
-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 19 of GB/T4678. This part is a newly formulated standard.
This part is proposed by China Electrical Equipment Industry Association. Foreword
This part is under the jurisdiction of the National Technical Committee for Standardization of Moulds (SAC/TC33). This part was drafted by: Shanghai Pierburg Nonferrous Components Co., Ltd., Guangzhou Cavity Mold Factory, Guilin Electric Science Research Institute, Dongfeng Technology Automotive Braking System Company, Chengdu Xingguang Die Casting Industry Co., Ltd. The main drafters of this part are: Zhang Liangen, Cai Zijin, Weng Shizhen, Feng Bochun, Liao Hongyi, Yang Zhaoling, Huang Zhilu, Li Hongying. 80
1 Scope
Die casting die parts Part 19: Locating elements This part specifies the dimensions and tolerances of locating elements for die casting dies. This part is applicable to locating elements used in die casting dies. This part also gives material guidelines and hardness requirements, and specifies the marking of locating elements. 2 Normative references
GB/T4678.19--2003
The clauses in the following documents become the clauses of this part through reference in this part of GB/T4678. For dated references, all subsequent amendments (excluding errata) or revisions are not applicable to this part. However, parties to agreements based on this part are encouraged to study whether the latest versions of these documents can be used. For undated references, the latest versions apply to this part.
GB/T4679--2003 Technical conditions for die casting parts 3 Dimensions and specifications
See Figure 1 and Table 1.
Surface roughness in microns
Surface roughness Ra=6.3μm without indication; chamfer 1mm×45° without indication. a Reference surface.
Allows the center hole to be retained.
Figure 1 Positioning element
GB/T 4678.19—2003
Material and hardness
Positioning element dimensions
Material is selected by the manufacturer, and T10A, GCr15 are recommended. Hardness 50 HRC～55 HRC.
5 Technical requirements
Shall comply with the provisions of GB/T4679-2003. 6 Marking
Location elements according to this part shall have the following markings: a) Locating element;
The diameter D of the positioning element, in millimeters; b)
c) The code of this part, i.e. GB/T4678.19--2003. Example:
Location element with D=12mm is marked as follows:
Location element 12
GB/T 4678.19--2003
The unit is millimeters
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