Application of PTFE based dry film lubrication to moulded plastic by electrophoretic deposition

Hope, Janet

doi:10.1080/00202967.2016.1161022

Cited by 2 publications

(3 citation statements)

References 6 publications

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“…Non-metallic self-lubricating materials, such as, graphite, polymers, etc., have been applied in fluid journal bearings to improve tribological properties. 5–9 Meanwhile, the previous studies show that the non-metallic self-lubricating materials are able to reduce the friction coefficient of bearing under fluid lubrication because of liquid slips on the bearing surfaces. 7,10–15 Therefore, the non-metallic self-lubricating material is promising for the spiral groove bearing in reducing friction power loss of FESS.…”

Section: Introductionmentioning

confidence: 99%

“…Polytetrafluoroethylene (PTFE) has the properties such as low friction coefficient, good anti-wear, high corrosion resistance and excellent heat resistance. [5][6][7] In this study, PTFE composite is used as bush material for the hydrodynamic spiral groove bearing, and the proposed bearing is named as the hydrodynamic spiral groove PTFE bearing. This PTFE bearing is more suited for boundary friction rather than the traditional CuAl bearing due to its self-lubricating property.…”

Section: Introductionmentioning

confidence: 99%

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Reducing friction power losses of flywheel energy storage systems using PTFE composites: A technical note

Jiang

Qiu

2019

Proceedings of the Institution of Mechanical Engineers, Part J:

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This technical note aims to reduce friction power loss of flywheel energy storage system (FESS) supported by hydrodynamic spiral groove bearing and permanent magnetic bearing (PMB). An approach is proposed to fabricate the spiral groove bearing using polytetrafluoroethylene (PTFE) composite. A test rig is developed to test tribological properties of the spiral groove PTFE bearings. Also, two PTFE composites (C-PTFE: 80 vol.% PTFE filled with 20 vol.% graphite; C-Cu-PTFE 50 vol.% PTFE filled with 20 vol.% graphite and 30 vol.% copper powder) are tested. Results show that the friction power losses of the C-PTFE and C-Cu-PTFE bearings are lower than that of the traditional albronze (CuAl) bearing in the whole speed range. In addition, the spiral groove PTFE bearings show an excellent friction-reducing property under boundary or mixed lubrication condition. Finally, a case study is given to show the spiral groove PTFE bearing is capable of reducing the friction power loss of the FESS.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Reducing friction power losses of flywheel energy storage systems using PTFE composites: A technical note

Jiang

Qiu

2019

Proceedings of the Institution of Mechanical Engineers, Part J:

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“…The most usual substrate material is metal. Conductive polymers and some conductive plastics may also be coated using the technique [1]. Coatings are normally single layer finishes or primer/base coats for mechanically applied top-coats.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Multi-Stage Deposition Techniques of Industrial EPD Paint for High Film Thickness and Multi-Layer Applications

Hope¹,

Hope²

2018

ECS Trans.

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EPD paint systems are well established industrially for applying coatings to a wide variety of metal items. Being aqueous systems, deposition is principally driven by electrolysis rather than electrophoresis. Polarisation of the deposit by diffusing or retained electrolytic gas leads to a self-limiting rate of deposition. Self-limitation is beneficial for equalising thickness distribution, but prevents higher thicknesses that may be required for protection. If electrodeposition is interrupted and the polarising gas bubble blanket removed, electrodeposition can be resumed with electrophoresis becoming more significant, and higher thickness achieved. Multiple layers of different paint compositions are also possible. Substrate movement as opposed to whole bath agitation can be significant for refining the deposit. Studying the final composition of multiple layers of different paints provides insight into the deposition processes. Practical advantages include enhanced corrosion protection from higher thickness, and various functional attributes from multiple layering.

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Application of PTFE based dry film lubrication to moulded plastic by electrophoretic deposition

Cited by 2 publications

References 6 publications

Reducing friction power losses of flywheel energy storage systems using PTFE composites: A technical note

Reducing friction power losses of flywheel energy storage systems using PTFE composites: A technical note

Investigation of Multi-Stage Deposition Techniques of Industrial EPD Paint for High Film Thickness and Multi-Layer Applications

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