GB/T 32292-2015Vacuum techology—Ferrofluid rotary feedthroughs—Generic specification (English PDF)
真空技术 磁流体动密封件 通用技术条件
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Issued by
SAMR; SAC
Level / Type
National · Recommended
Issue date
December 10, 2015
Implementation date
July 1, 2016
Scope
GB/T 32292-2015 is the English-translated version of 真空技术 磁流体动密封件 通用技术条件.
GB/T 32292-2015 is the Chinese standard "Vacuum techology—Ferrofluid rotary feedthroughs—Generic specification". Its scope clause reads: This standard specifies the magnetic fluid seal (hereinafter referred to as seals) technical requirements, test methods, inspection rules, signs, packaging, storage And transportation.
This standard applies to vacuum equipment, medium and high voltage electrical switchgear used in magnetic fluid seals and other similar rotating shaft magnetic fluid motion Seals.
Its clauses include normative reference documents; magnetic fluid seal structure; technical requirements.
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Document preview — GB/T 32292-2015
National Standard of the People's Republic of China
- ICS
- 23.160
- Classification
- J 78
Issued by: State Administration for Market Regulation; Standardization Administration of the PRC
Contents
- 1 Scope
- 2 normative reference documents
- 3 magnetic fluid seal structure
- 4 technical requirements
1 Scope
This standard specifies the magnetic fluid seal (hereinafter referred to as seals) technical requirements, test methods, inspection rules, signs, packaging, storage
And transportation.
This standard applies to vacuum equipment, medium and high voltage electrical switchgear used in magnetic fluid seals and other similar rotating shaft magnetic fluid motion
Seals.
2 normative reference documents
The following documents are indispensable for the application of this document. For dated references, only the dated edition applies to this article
Pieces. For undated references, the latest edition (including all modifications) applies to this document.
GB/T 1220 stainless steel bar
GB/T 1800 (all parts) Geometrical product specifications (GPS) limits and mating
GB/T 3452.1-2005 O-shaped rubber seals for hydraulic applications - Part 1. Dimensions series and tolerances
GB/T 3452.2-2007 O-shaped rubber seals for hydraulic and pneumatic applications - Part 2. Specifications for inspection of appearance quality
GB/T 3864 Industrial Nitrogen
GB/T 4844 pure helium, high purity helium and ultra pure helium
GB/T 6070 Vacuum technology Flange dimensions
GB/T 6071 ultra-high vacuum flange
GB/T 13306 signs
3 magnetic fluid seal structure
This standard does not specify the sealing structure of magnetic fluid dynamic seals. The manufacturer can design and manufacture different densities according to the user's condition
Sealed structure of the magnetic fluid dynamic seals.
4 technical requirements
4.1 Major parts and components
4.1.1
The shell shall be made of austenitic stainless steel or other non-magnetic stainless steel material and shall comply with the requirements of GB/T 1220.
4.1.2
The drive spindle (bushings) shall be designed and manufactured using a magnetically conductive stainless steel material and shall comply with the provisions of GB/T 1220.
4.1.3
The sealing material should use a magnetic fluid (magnetic liquid) with a evaporation rate of not higher than 5.5 × 10-6 g · cm2/h at 100 ° C.
4.2 processing accuracy
Seal the transmission spindle and the equipment with the parts of the processing accuracy of not less than GB/T 1800 specified 6 precision; seal sleeve
Of the processing accuracy of not less than GB/T 1800 specified 7-level accuracy.
......
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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