This part specifies the dimensions and tolerances of flat push rods for die casting moulds. This part is applicable to flat push rods for die casting moulds. This part also gives material guidelines and hardness requirements, and specifies the marking of flat push rods. GB/T 4678.16-2003 Die casting mould parts Part 16: Flat push rods GB/T4678.16-2003 Standard download decompression password: www.bzxz.net

GB/T4678 "Die-casting die parts" is divided into 19 parts: Part 1: Templates; Part 2: Round 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: Push plates; - Part 9: Push plate guide pins; t||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 16 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). GB/T4678.16—2003
The drafting organizations of this part are: 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 are: Zhang Liangen, Cai Zijin, Weng Shizhen, Feng Bochun, Liao Hongyi, Yang Zhaoling, Huang Zhilu, Li Hongying. 67
GB/T 4678.16---2003
1 Scope
"Die casting die parts" Part 16: Flat push rods This part specifies the dimensions and tolerances of flat push rods for die casting dies. This part applies to flat push rods used in die casting dies. This part also gives material guidelines and hardness requirements, and specifies the marking of flat push rods. 2 Normative references
The clauses in the following documents become the clauses of this part through reference to this part of GB/T 4678. For all dated references, all subsequent references shall apply. 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.
Technical conditions for die casting parts
GB/T4679—2003
3 Dimensions and specifications
See Figure 1 and Table 1.
Surface roughness in microns
Surface roughness not specified Ra-6. 3 μm. The radius of the circle is less than 10 mm.
Flat push rod
Material and hardness
Table 1 Flat push rod dimensions
The material is selected by the manufacturer, and 4Cr5MoSiV1.3Cr2W8V is recommended. Hardness 45HRC~50 HRC.
GB/T4678.16—2003
Unit is mm
The surface can be nitrided after quenching, the depth of the nitriding layer is 0.08mm~0.15mm, the core hardness is 40HRC～44HRC, and the surface hardness is ≥900 HV.
5 Technical requirements
Should comply with the provisions of GB/T4679-2003.
6 MarkingWww.bzxZ.net
Flat push rods according to this part shall have the following markings: a)
Flat push rod;
Thickness a and width b of the flat push rod, in millimeters; length L of the flat push rod, in millimeters; thickness h of the head of the flat push rod, in millimeters; code of this part, i.e. GB/T4678.16--2003. e)
Example:
The flat push rod with a=0.8mm, b=3. 5mm, L=80 mm, h=5 mm is marked as follows: Flat push rod 0.8X3.5×80×5GB/T4678.16—200369
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