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GB/T 4678.16-2023: Die casting dies - Components - Part 16: Flat ejector pins
Status: Valid GB/T 4678.16: Evolution and historical versions
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| GB/T 4678.16-2023 | English | 179 |
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Die casting dies - Components - Part 16: Flat ejector pins
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GB/T 4678.16-2023
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| GB/T 4678.16-2003 | English | 169 |
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Die-casting die components -- Part 16: Flat ejector pin
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GB/T 4678.16-2003
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PDF similar to GB/T 4678.16-2023
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Count Estimation | 8,853 | | Date of Issue | 2023-05-23 | | Date of Implementation | 2023-12-01 | | Older Standard (superseded by this standard) | GB/T 4678.16-2003 | | Issuing agency(ies) | State Administration for Market Regulation, China National Standardization Administration |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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