GB/T 4678.16-2023 English PDF

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GB/T 4678.16-2023: Die casting dies - Components - Part 16: Flat ejector pins
Status: Valid

GB/T 4678.16: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 4678.16-2023	179	Add to Cart	3 days	Die casting dies - Components - Part 16: Flat ejector pins	Valid
GB/T 4678.16-2003	169	Add to Cart	2 days	Die-casting die components -- Part 16: Flat ejector pin	Obsolete

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Basic data

Standard ID: GB/T 4678.16-2023 (GB/T4678.16-2023)
Description (Translated English): Die casting dies - Components - Part 16: Flat ejector pins
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J46
Classification of International Standard: 25.120.30
Word Count Estimation: 8,853
Date of Issue: 2023-05-23
Date of Implementation: 2023-12-01
Older Standard (superseded by this standard): GB/T 4678.16-2003
Issuing agency(ies): State Administration for Market Regulation, China National Standardization Administration

GB/T 4678.16-2023: Die casting dies - Components - Part 16: Flat ejector pins

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
ICS 25:120:30 CCSJ46 National Standards of People's Republic of China Replace GB/T 4678:16-2003 Die casting mold parts part 16 : flat push rods Released on 2023-05-23 2023-12-01 implementation State Administration for Market Regulation Released by the National Standardization Management Committee

foreword

This document is in accordance with the provisions of GB/T 1:1-2020 "Guidelines for Standardization Work Part 1: Structure and Drafting Rules for Standardization Documents" drafting: This document is Part 16 of GB/T 4678 "Parts of Die Casting Mold": GB/T 4678 has released the following parts: --- Part 1: template; --- Part 2: Round inserts; --- Part 3: Rectangular inserts; --- Part 4: Square guide pillars; --- Part 5: Circular guide pillars; --- Part 6: Guide bushing with head; --- Part 7: Straight guide bushing; --- Part 8: Push plate; --- Part 9: Push plate guide column; --- Part 10: Push plate guide sleeve; --- Part 11: Putters; --- Part 12: Reset lever; --- Part 13: Push plate gasket; --- Part 14: Limit nails; --- Part 15: Pads; --- Part 16: Flat push rod; --- Part 17: Push tube; --- Part 18: Support columns; --- Part 19: Positioning elements: This document replaces GB/T 4678:16-2003 "Die Casting Mold Parts Part 16: Flat Push Rod", and GB/T 4678:16-2003 In comparison, except for structural adjustments and editorial changes, the main technical changes are as follows: a) Type B flat push rod is added (see 4:2); b) The arrangement of Table 1 has been changed, and the letter codes such as D, D1, α, and b have been adjusted in the first row of the table header (see Table 1, Table 1 of the:2003 edition); c) Adjust the size series in Table 1, and expand the value range of D, L and other sizes (see Table 1, Table 1 of the:2003 edition); d) Change the tolerances of D, D1, α, b, L, L1, and h in Table 1 to be marked in Figure 1 (see Figure 1, Figure 1 of the:2003 edition): Please note that some contents of this document may refer to patents: The issuing agency of this document assumes no responsibility for identifying patents: This document is proposed and managed by the National Mold Standardization Technical Committee (SAC/TC33): This document is drafted by: Ningbo Xunhui Electric Co:, Ltd:, Dalian Yaming Auto Parts Co:, Ltd:, Ningbo Vocational and Technical College, Ningbo Junling Mold Technology Co:, Ltd:, Ningbo Zhongzaoyun Technology Co:, Ltd:, Guilin Electrical Appliance Science Research Institute Co:, Ltd:, Ningbo Zhongxin Die Casting Mold Co:, Ltd: The main drafters of this document: Wang Xifu, Fang Jianru, Ke Chunsong, Hu Ningan, Peng Liming, Zhang Li, Cao Maohua, Lu Ruhui, Hou Zhijie, Zhu Shuiqin, Yao Xianjun, Lin Haomin, Yang Yingjun, Fang Haocheng: The release status of previous versions of this document and the documents it replaces are as follows: ---First published as GB/T 4678:16-2003 in:2003; --- This is the first revision:

Introduction

Die-casting mold parts standards are basic technical documents for the design, manufacture, inspection and acceptance of die-casting mold parts: GB/T 4678 "Die-casting mold parts The formulation of "Parts" aims to unify the basic structure and specifications of die-casting mold parts, standardize their technical requirements, and improve the product quality of domestic die-casting mold parts And standard parts utilization rate, reduce production cost: Due to the many types of parts, GB/T 4678 is divided according to the number of typical parts of die-casting molds: for the following 19 sections: --- Part 1: template; --- Part 2: Round inserts; --- Part 3: Rectangular inserts; --- Part 4: Square guide pillars; --- Part 5: Circular guide pillars; --- Part 6: Guide bushing with head; --- Part 7: Straight guide bushing; --- Part 8: Push plate; --- Part 9: Push plate guide column; --- Part 10: Push plate guide sleeve; --- Part 11: Putters; --- Part 12: Reset lever; --- Part 13: Push plate gasket; --- Part 14: Limit nails; --- Part 15: Pads; --- Part 16: Flat push rod; --- Part 17: Push tube; --- Part 18: Support columns; --- Part 19: Positioning elements: Each part stipulates the structure, technical requirements, material requirements, marks, etc: of one of the parts, which can be customized according to the mold structure requirements: According to the requirements, refer to the corresponding parts to design and manufacture die-casting mold parts: GB/T 4678 was released for the first time in 1984: According to the needs of the development of the die-casting mold industry, all parts were tested for the first time in:2003: revised: In recent years, with the development of my country's industry and economy, the design and manufacturing technology of domestic large-scale, precise and complex high-end die-casting molds has become more and more Mature: At the same time, with the application of new materials and new processes and the requirements of international standards brought by the export of molds, the basic dimensions of die-casting mold parts Changes have taken place in series, precision requirements, markings, packaging, etc: From:2017 to 2021, the National Die and Mold Standardization Technical Committee completed Part 1~Part 13 of GB/T 4678, 15 part revisions of Parts 15 and 19: The document revised this time is Part 16 of GB/T 4678: Revised so that it can timely and comprehensively reflect the current mature technical content of the die-casting mold industry, and at the same time comply with the compilation requirements of GB/T 1:1-2020 Requirements, and coordinated with the revised standards for other die-casting mold parts, are of great importance to the technological progress and industrial upgrading of the die-casting industry: significance: Die casting mold parts part 16 : flat push rods

1 Scope

This document specifies the types, dimensions, materials, technical requirements and markings of flat push rods for die-casting dies: This document is applicable to the design and manufacture of flat push rods for die-casting molds:

2 Normative references

The contents of the following documents constitute the essential provisions of this document through normative references in the text: Among them, dated references For documents, only the version corresponding to the date is applicable to this document; for undated reference documents, the latest version (including all amendments) is applicable to this document: GB/T 1800:1-2020 Geometric Product Specifications (GPS) Linear Dimensional Tolerances ISO Code System Part 1: Tolerances, Basis of Deviation and Fit GB/T 4679 Technical conditions for die-casting mold parts

3 Terms and Definitions

This document does not have terms and definitions that need to be defined:

4 Types and sizes

4:1 The type of A-type flat push rod should be in accordance with Figure 1, and the dimensions should be in accordance with the values given in Table 1: Surface roughness in microns Dimensions are in millimeters The surface roughness Ra without injection should be 3:2μm; the arc radius r should be less than 10mm: Figure 1 Type A flat push rod ......

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