JB/T 14217-2021Taps for general-purpose knuckle threads (English PDF)
普通圆弧螺纹丝锥
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Issued by
MIIT
Level / Type
Industry · Recommended
Issue date
December 2, 2021
Implementation date
April 1, 2022
Scope
JB/T 14217-2021 is the English-translated version of 普通圆弧螺纹丝锥.
JB/T 14217-2021 is the Chinese machinery industry standard covering taps for general-purpose knuckle threads. It was issued on 2 December 2021 and has been in force since 1 April 2022, as a first edition.
The document is under the responsibility of the Ministry of Industry and Information Technology. This page is published from the official record of the 2021 edition.
The figures, limits and tables the standard contains are those of the document itself, delivered in full with the English translation.
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Document preview — JB/T 14217-2021
National Standard of the People's Republic of China
Issued by: Ministry of Industry and Information Technology of the People's Republic of China
Contents
- [Preview only]
- 1 Scope
- 2 Normative references
- 3 Terms and definitions
- 3.1 Type
- 3.2 Basic parameters
- 4 Types and basic parameters
- 4.1 Types
- 4.2 Model designation
- 4.3 Nominal operating conditions
- 4.4 Safety and hygiene
- 4.5 Welding
- 4.6 Bridge (After crane operation mechanism assembled)
- 4.7 Assembly
- 4.8 Electrical control equipment
- 4.9 Steel pretreatment and painting
- 5 Technical requirements
- 5.1 General requirements
- 5.2 Safety requirements
- 5.3 Cold and hot working forming
- 5.4 Rated load test
- 5.5 Whole machine noise test
- 5.6 Static rigidity test
- 5.7 Dynamic load test
- 5.8 Crane span deviation
- 5.9 Diagonal difference of bridge
- 6 Test methods
- 6.1 Exit-factory inspection
- 6.2 Type inspection
- 7 Inspection rules
- 7.1 Marking
- 7.2 Packaging, transportation and storage
- 7.3 Transportation
- 7.4 Storage
- 8 Marking, packaging, transportation and storage
- 9 标志和标签 9 Marking and labeling
1 Foreword
JB/T 14217-2021 was issued by Ministry of Industry and Information Technology of the People's Republic of China on 2 December 2021 and has been in force since 1 April 2022.
The JB/T prefix marks a recommended standard. It is not law in itself: it becomes binding when a contract names it, when a regulation or a mandatory standard refers to it, or when a producer declares conformity with it.
The document runs to 15 pages in English translation.
2 Scope Preview
JB/T 14217-2021 carries no ICS number and no Chinese Standard Classification code.
This catalogue holds 21,922 other JB/T standards.
Of the 5,298 JB/T standards that do carry an ICS number, 1,460 (28%) fall under ICS 25, in the field of manufacturing engineering.
3 About this standard
Issued by: Ministry of Industry and Information Technology of the People's Republic of China
English translation: about 15 pages
4 Related standards
Standards on related subjects:
GB/T 972-2008 — Thread rolling flat dies
GB/T 5104-2008 — The basic types and dimensions of hobs for involute splines
GB/T 5105-2004 — The basic types and dimensions of hobs for 45 Degree pressure angle involute splines
JB/T 14219-2021 — Brazed polycrystalline diamond ball end mills
JB/T 14218-2021 — Brazed polycrystalline diamond helical end mills
JB/T 14216-2021 — Taps for 80° non-sealing pipe threads
5 Classification and status
Prefix JB/T: recommended standard.
......
This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 15 pages — is available in the English PDF.
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