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Article
Publication date: 1 April 2005

80

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Aircraft Engineering and Aerospace Technology, vol. 77 no. 2
Type: Research Article
ISSN: 0002-2667

Keywords

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Article
Publication date: 1 June 2005

62

Abstract

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Assembly Automation, vol. 25 no. 2
Type: Research Article
ISSN: 0144-5154

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Article
Publication date: 22 May 2009

31

Abstract

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Pigment & Resin Technology, vol. 38 no. 3
Type: Research Article
ISSN: 0369-9420

Open Access
Article
Publication date: 13 November 2023

Ming Gao, Anhui Pan, Yi Huang, Jiaqi Wang, Yan Zhang, Xiao Xie, Huanre Han and Yinghua Jia

The type 120 emergency valve is an essential braking component of railway freight trains, but corresponding diaphragms consisting of natural rubber (NR) and chloroprene rubber…

Abstract

Purpose

The type 120 emergency valve is an essential braking component of railway freight trains, but corresponding diaphragms consisting of natural rubber (NR) and chloroprene rubber (CR) exhibit insufficient aging resistance and low-temperature resistance, respectively. In order to develop type 120 emergency valve rubber diaphragms with long-life and high-performance, low-temperatureresistant CR and NR were processed.

Design/methodology/approach

The physical properties of the low-temperature-resistant CR and NR were tested by low-temperature stretching, dynamic mechanical analysis, differential scanning calorimetry and thermogravimetric analysis. Single-valve and single-vehicle tests of type 120 emergency valves were carried out for emergency diaphragms consisting of NR and CR.

Findings

The low-temperature-resistant CR and NR exhibited excellent physical properties. The elasticity and low-temperature resistance of NR were superior to those of CR, whereas the mechanical properties of the two rubbers were similar in the temperature range of 0 °C–150 °C. The NR and CR emergency diaphragms met the requirements of the single-valve test. In the low-temperature single-vehicle test, only the low-temperature sensitivity test of the NR emergency diaphragm met the requirements.

Originality/value

The innovation of this study is that it provides valuable data and experience for future development of type 120 valve rubber diaphragms.

Details

Railway Sciences, vol. 3 no. 1
Type: Research Article
ISSN: 2755-0907

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Content available
Article
Publication date: 1 June 2001

142

Abstract

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Aircraft Engineering and Aerospace Technology, vol. 73 no. 3
Type: Research Article
ISSN: 0002-2667

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Article
Publication date: 1 June 1999

40

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Industrial Robot: An International Journal, vol. 26 no. 4
Type: Research Article
ISSN: 0143-991X

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Article
Publication date: 1 February 1998

343

Abstract

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Aircraft Engineering and Aerospace Technology, vol. 70 no. 1
Type: Research Article
ISSN: 0002-2667

Content available
79

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Industrial Lubrication and Tribology, vol. 52 no. 6
Type: Research Article
ISSN: 0036-8792

Keywords

Content available
Article
Publication date: 1 June 1999

90

Abstract

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Anti-Corrosion Methods and Materials, vol. 46 no. 3
Type: Research Article
ISSN: 0003-5599

Keywords

Content available

Abstract

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International Journal of Structural Integrity, vol. 2 no. 4
Type: Research Article
ISSN: 1757-9864

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