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GB/T 22028-2008: Hot-dip galvanized screw threads -- On internal screw threads there is the clearance for accommodating the hot-dip galvanized coat
Status: Valid
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| GB/T 22028-2008 | English | 169 |
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Hot-dip galvanized screw threads -- On internal screw threads there is the clearance for accommodating the hot-dip galvanized coat
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GB/T 22028-2008
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PDF similar to GB/T 22028-2008
Basic data | Standard ID | GB/T 22028-2008 (GB/T22028-2008) | | Description (Translated English) | Hot-dip galvanized screw threads -- On internal screw threads there is the clearance for accommodating the hot-dip galvanized coat | | Sector / Industry | National Standard (Recommended) | | Classification of Chinese Standard | J04 | | Classification of International Standard | 21.040.10 | | Word Count Estimation | 7,722 | | Date of Issue | 2008-06-19 | | Date of Implementation | 2009-01-01 | | Quoted Standard | GB/T 192; GB/T 196; GB/T 197; GB/T 9144; GB/T 14791; GB/T 15756; GB/T 22029 | | Adopted Standard | ISO 965-5-1998, MOD | | Regulation (derived from) | National Standard Approval Announcement 2008 No.10 (Total No.123) | | 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 type teeth to accommodate the threaded galvanized layer on the inner thread, diameter and pitch series, basic dimensions, tolerance, markers and limit size. This standard applies to hot-dip galvanized threaded fasteners. There are hot dip galvanized layer on the outer surface of the thread, the thread tapping after plating. | GB/T 22028-2008: Hot-dip galvanized screw threads -- On internal screw threads there is the clearance for accommodating the hot-dip galvanized coat
---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.
Hot-dip galvanized screw threads. On internal screw threads there is the clearance for accommodating the hot-dip galvanized coat
ICS 21.040.10
J04
National Standards of People's Republic of China
Hot dip galvanized Thread
Receiving zinc coating on the inner thread
(ISO 965-5.1998, ISO generalpurposemetricscrewthreads-
Tolerances-Part 5. Limitsofsizesforinternalscrewthreads
maximumsizeoftolerancepositionhbeforegalvanizing, MOD)
Posted 2008-06-19 2009-01-01 implementation
Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China
Standardization Administration of China released
Foreword
This revised standard adopts ISO 965-5.1998 "ISO general purpose metric screw threads - Tolerances - Part 5. Limits of sizes for internal screw thread,
Its mate galvanized external threads in the maximum size of tolerance position prior to plating is h "(in English). The main difference between the two is a standard provision
Row order. The standard according to tooth type, diameter and pitch range, basic dimensions, tolerances and limits the size of several basic structure and parameters of the thread
Order and complete the provisions of the hot-dip galvanized threaded the technical content. The standard Chapter, paragraph choreography correspondence with ISO standards as follows.
The standard Chapter, Article segment ISO standard chapter, article, section
Chapter 1, Chapter 2, Chapter 3, Chapter 1, Chapter 2, Section 3
, Paragraph 6, paragraph 7, paragraph 2, Chapter 1, Chapter 4
Chapter 5, Chapter 1, paragraph 1 (ISO 68-1)
Chapter 6, Chapter 1, paragraph 1 (ISO 262)
Chapter 7 -
Article 8.1 paragraph 1 of Chapter 1, paragraph 3 (ISO 965-1)
Article 8.1 of paragraphs 2 and 5 of Table 1 and Table 1 in the two (EI)
Article 8.1 paragraph 3 of Chapter 1 of the last two paragraphs Notes
Chapter 1, Section 8.2, paragraph 3, (ISO 965-1)
Chapter 9, Table 2 and Table 3, the two
Chapter 10, Chapter 4
Chapter 11, paragraphs 1 and Table 2 and Table 3, Chapter 6, and Tables 2 and 3
Chapter 11, paragraph 2, Chapter 1, paragraph 3 (ISO 965-1)
This standard is to accommodate the heat including zinc coating on the threads dip galvanized threads. Hot-dip galvanized thread there are two standards.
--- GB/T 22028-2008 accommodate hot-dip galvanized zinc coating on the inner screw thread;
--- GB/T 22029-2008 hot-dip galvanized external screw thread on the receiving zinc coating.
When used, which can only use a standard threaded inside. It does not form complexes with another thread with a standard thread standard.
This standard by the National Standardization Technical Committee thread (SAC/TC108) and focal points.
This standard is drafted by. Productivity Promotion Center in the machine.
Participated in the drafting of this standard. Zhejiang Haili Group Co., Ltd., Ningbo Kowloon Fastener Manufacturing Co., Ltd., Ningbo's Yinzhou meter gold
Metal surface treatment plant.
The main drafters of this standard. Li Xiaobin, Wang Zhengyin, Xu Yong, meter civilization.
Hot dip galvanized Thread
Receiving zinc coating on the inner thread
1 Scope
This standard specifies the type of tooth, including receiving zinc coating on thread thread diameter and pitch range, basic dimensions, tolerances, labeling and limits
size.
This standard applies to hot-dip galvanizing threaded fasteners. There are hot-dip galvanizing layer on the outer surface of the thread, the internal thread after tapping plating.
2 Normative references
The following documents contain provisions which, through reference in this standard and become the standard terms. For dated references, subsequent
Amendments (not including errata content) or revisions do not apply to this standard, however, encourage the parties to the agreement are based on research
Whether the latest versions of these documents. For undated reference documents, the latest versions apply to this standard.
GB/T 192 ordinary screw threads - Basic model (GB/T 192-2003, ISO 68-1.1998, ISO generalpurposescrew
threads-Basicprofile-Part 1. Metricscrewthreads, MOD)
GB/T 196 common thread basic size (GB/T 196-2003, ISO 724.1993, ISO generalpurposemetric
screwthreads-Basicdimensions, MOD)
GB/T 197 common thread tolerance (GB/T 197-2003, ISO 965-1.1998, ISO generalpurposemetric
screwthreads-Tolerances-Part 1. Principlesandbasicdata, MOD)
GB/T 9144 common thread preferred series (GB/T 9144-2003, ISO 262.1998, ISO generalpurposemetric
screwthreads-Selectedsizesforscrews, boltsandnuts, MOD)
GB/T 14791 threads term (GB/T 14791-1993, neq ISO 5408. 1983)
GB/T 15756 common thread size limit
GB/T 22029 hot-dip galvanized external screw thread on the receiving zinc coating (GB/T 22029-2008, ISO 965-4.1998, ISO
generalpurposemetricscrewthreads-Tolerances- Part 4. Limitsofsizesforhot-dipgalvanized
externalscrewthreadstomatewithinternalscrewthreadstappedwithtolerancepositionHorGafter
galvanizing, MOD)
3 Terms and Definitions
Terms and definitions GB/T 14791 stipulated apply to this standard.
4 Use General
After plating internal thread tapping the left large gaps (AZ or AX basic deviation) for receiving hot-dip galvanized coating on the outer threaded surface; external thread
Before plating lines using common thread standard (GB/T 197) under the standard tolerance position tolerances and standard levels.
Using shear strength in this standard threaded workpiece below the standard allows the common thread has shear strength.
GB/T 22029 provides for accommodating zinc coating on the outer threaded galvanized threads. When you use this standard to distinguish between large
Thread the gap with GB/T 22029 stipulated large external thread gap.
This standard specifies a large gap can not be threaded with the GB/T 22029 stipulated the formation of a large gap with the external thread connection. Such complexes of
Shear strength thread weaken too much.
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