GB/T 4678.7-2017 English PDF

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GB/T 4678.7-2017: Diecasting dies -- Components -- Part 7: Straight guide bush
Status: Valid

GB/T 4678.7: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 4678.7-2017	109	Add to Cart	3 days	Diecasting dies -- Components -- Part 7: Straight guide bush	Valid
GB/T 4678.7-2003	159	Add to Cart	2 days	Die-casting die components -- Part 7: Straight guide bush	Obsolete
GB/T 4678.7-1984	199	Add to Cart	2 days	Die-cast die components--Guide bushings type B	Obsolete

Similar standards

GB/T 45677   GB/T 6110   JB/T 3943   GB/T 4678.16   GB/T 4678.14   GB/T 4678.15   

Basic data

Standard ID: GB/T 4678.7-2017 (GB/T4678.7-2017)
Description (Translated English): Diecasting dies -- Components -- Part 7: Straight guide bush
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: J46
Classification of International Standard: 25.120.30
Word Count Estimation: 5,595
Date of Issue: 2017-09-29
Date of Implementation: 2018-04-01
Older Standard (superseded by this standard): GB/T 4678.7-2003
Quoted Standard: GB/T 1801-2009; GB/T 1804-2000; GB/T 4679
Regulation (derived from): National Standard Notice 2017 No. 23
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies the structure type and size, requirements, materials and marking of direct-guided die-casting die sets. This section applies to direct die casting die sets.

GB/T 4678.7-2017: Diecasting dies -- Components -- Part 7: Straight guide bush

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Diecasting dies - Components - Part 7. Straight guide bush ICS 25.120.30 J46 National Standards of People's Republic of China Replacing GB/T 4678.7-2003 Die casting parts Part 7. Straight boot 2017-09-29 Posted 2018-04-01 implementation General Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China China National Standardization Administration released

Foreword

GB/T 4678 "Die Casting Parts" is divided into 19 parts. --- Part 1. Template; --- Part 2. Round inserts; --- Part 3. Rectangular inserts; --- Part 4. Square guide column; --- Part 5. Round guide column; --- Part 6. Leading guide sleeve; --- Part 7. Direct guide sleeve; --- Part 8. Push plate; --- Part 9. Push plate guide column; --- Part 10. Push plate guide sleeve; --- Part 11. Putter; --- Part 12. Reset lever; --- Part 13. Push plate washers; --- Part 14. Limit nail; --- Part 15. Pad; --- Part 16. Flat push rod; --- Part 17. Push the tube; --- Part 18. Supporting columns; --- Part 19. Positioning components. This section GB/T 4678 Part 7. This section drafted in accordance with GB/T 1.1-2009 given rules. This Part replaces GB/T 4678.7-2003 "Die Cast Parts Part 7. Straight guide sleeve." This section compared with GB/T 4678.7-2003 main changes are as follows. --- The standard name changed to three-stage, renamed the "die-casting mold part 7. Direct guide sleeve"; --- According to the latest relevant national standards on the standard content, structure and charts were normative changes; --- Table 1 to be rearranged, the main parameter D corresponds to the guide section diameter, D1 corresponds to the diameter of the fixed section, and other parts of the standard coordination Consistent --- Table D in the D and D1 tolerance requirements H8, r6 replaced by marked in the figure; --- Adjust the Table 1 D, D1, L size series, and expand the size range, the main parameter D increased by 12 specifications, D1 corresponding increase 20 specifications, L increased 100,120 specifications; --- Adjust the recommended material and hardness; --- Modify the markings and examples, and added a mark in the material grade. This part of the mold by the National Standardization Technical Committee (SAC/TC33) and focal point. This section drafted unit. Dongguan City, Guangdong Province Quality Supervision and Testing Center, Tianjin Polytechnic Normal University, Suzhou 赛 Po calibration of technical services Service Company, Po Tak powder injection molding (Changshu) Co., Ltd., Guilin Electric Institute of Science and Technology Co., Ltd., Guilin University of Electronic Science and Technology. The main drafters of this section. Ouhai Long, Xu Chaohui, Xu Yan, Gu Wen Da, Wang Chong, Liao Hongyi, Huang Wei, Li Zhen, Zhuang Jianfeng, Ma Qingguo, Li Ruifeng. This part replaces the standards previously issued as. --- GB/T 4678.7-1984, GB/T 4678.7-2003. Die casting parts Part 7. Straight boot

1 Scope

GB/T 4678 provisions of this part of the direct injection die casting mold structure and size, requirements, materials and markings. This section applies to die-casting straight guide sleeve.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this article Pieces. For undated references, the latest edition (including all amendments) applies to this document. GB/T 1801-2009 Geometrical Product Specifications (GPS) Limits and Tolerances and Matching Options GB/T 1804-2000 General tolerances Tolerances for linear and angular dimensions without tolerance GB/T 4679 die casting mold parts technical conditions

3 structure and size

Straight guide sleeve structure shown in Figure 1, the size shown in Table 1. Note. The surface roughness is not noted Ra3.2μm. Figure 1 direct guide sleeve ......

Image     

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