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Browsing by Subject "Mechanical engineering"

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Advantages of fluoride ion cleaning at sub-atmospheric pressure

Author: Miglietti, W ; Blum, F Date: Jun 1998 The fluoride ion cleaning (FIC) process is used to assist in the successful braze repair of nickel-based super alloy components. This process is especially effective in removing deeply embedded oxides in wide and narrow cracks typically found ... Read more
Contact fatigue in rolling-element bearings

Author: Fernandes, PJL Date: Jun 1997 Surface contact fatigue is a common cause of failure in rolling-element bearings. The extent of damage observed depends on the contact loads, the curvature of the rolling elements, and the relative motion between the contacting surfaces. The ... Read more
CSIR Annual report 1975

Author: CSIR Date: 1975 This report provides highlights on the activities and achievements of CSIR in the year 1975. An outline of the CSIR structure and financial statements are also presented in the report. Read more
Failure analysis and life prediction of a large, complex plate fin heat exchanger

Author: Carter, P ; Carter, TJ ; Viljoen, A Date: Mar 1996 Failure analysis and life prediction of a large, complex fin plate heat exchanger required metallurgical analysis, at the beginning of 1993, inter-stream leaks were found in two aluminium plate fin heat exchangers in parallel operation at a ... Read more
Failures of chain systems

Author: James, A Date: Mar 1997 Chains are used for various purposes in a wide range of industries. This paper describes three case studies where a failure analysis was carried out on chains used in markedly different applications namely: a furnace health, a drilling rig ... Read more
Fatigue life prediction in composites

Author: Huston, RJ Date: 1994 Because of the relatively large number of possible failure mechanisms in fibre reinforced composite materials, the prediction of fatigue life in a component is not a simple process. Several mathematical and statistical models have been proposed, ... Read more
Improving the mechanical stability of a standard capacitor

Author: Moodley, SS ; Van der Berg, W ; Veldman, CS Date: Apr 2003 The CSIR - NML (Council for Scientific and Industrial Research, National Metrology Laboratory) of South Africa, manufactured a 10-pF ultra-low expansion quartz capacitors in the early 1970s. Although the capacitors were extremely stable and ... Read more
Pump impeller failures - a compendium of case studies

Author: Van Bennekom, A ; Berndt, F ; Rassool, MN Date: Apr 2001 This paper presents a collection of pump impeller failures that have been encountered during the consulting activities at the University of the Witwatersrand and the Plant Infrastructure and Pipelines Centre at the Council for Scientific and ... Read more
Recovery of creep properties of the nickel-base superalloy nimonic 105

Author: Girdwood, RB ; Evans, RW Date: 1996 Uniaxial constant stress creep tests were performed on the wrought nickel-base superalloy Nimonic 105. Entire creep curves were recorded and curve shapes analysed using the Theta Projection Concept. Rejuventive procedures were applied to ... Read more

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Browsing by Subject "Mechanical engineering"

Browsing by Subject "Mechanical engineering"

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