61 research outputs found
The manufacture of Aluminium-bronze castings
THE development of aluminium-bronze alloys has basically been due to a combination of useful properties parti-cuarly appealing to the designers in various engineering fields, the most important application being in the marine and hydraulic field. Important properties of aluminium-bronzes include the following:
(1) Useful combination of mechanical properties with
ability to retain these properties at moderately
elevated temperature
(2) Excellent resistance to corrosion and cavitation
erosion
(3) High impact value, and
(4)High wear resistance
High wear resistance
The Manufacture of Aluminium Bronze
Employing practices and equipment generally available for copper alloy casting like gun metals and phoshor bronze, attempts have been made by Indian foundries to manufacture Aluminium Bronze Castings without unders-tanding its basic principles. This paper has tried to
deal with factors that should be considered for economic production of Aluminium Bronze Castings
The Indian Institute of Metals
The Indian Institute of Metals (IIM) is a highly reputed and the foremost professional organisation in the country for promoting and advancing Metallurgical Sciences and Technology. The activities and scope of the Institute, since its establishment in 1946, have steadily expanded. The Institute serves its members through its various Chapters and Divisions by organising technical lectures, seminars, symposia, conferences and through publications to cater to the needs of the profession. The activities are mostly conducted through honorary office-bearers and council members. Had it not been for this voluntary co-operation and contributions from many members and the support of the industry, the Institute would not have been able to provide these most efficient and useful services which it renders at surprisingly low subscription rates
A study of copper consumption in some industrial countries and its relevance to India
Change has always been a way of life. In the past its
rate has often been slow but today changes take place
so rapidly that, except in a limited field, it is not possible for one man to keep abreast of modern deve-lopments and assess their possible effects. Changes
affect every facet of our lives whether political,
social or technological and nowhere is this more pro-nounced than in India. By itself change it not nece-ssarily a solution to all problems and, as an example,
has not solved one of the world's most critical
problem the gap between the `Developing' & `Industrial'
countries. Fundamentally the reason is simple. Where
capital accumulates,is invested in research to provide
the basis for the necessary technical change and is
turned into productive equipment, trade expands and
living standards rise
Keeping up with revolutions: evolution of higher education in Uzbekistan
Uzbekistan's higher education system has undergone some dramatic changes in the past century, evolving from largely traditional religious colleges to fully state-funded communist-atheist institutions. Since the end of the communist administration and subsequent market-oriented reforms, the institutions of higher education (IHE) in Uzbekistan have had to reinvent and reform themselves again, as the demand for different kind of education increased. This paper puts the current changes and trends in IHEs into an historical perspective and highlights some important effects of the market reforms on the educational scene
Reviews : ROMAN KOLKOWICZ. The Soviet Military and the Communist Party. Prince ton, N. J., Princeton University Press, 1967. Pp. 429. Price $ 9.00
Book Reviews : RICHARD V. ALLEN, ed. Yearbook on International Communist Affairs. Stanford, Calif.: Hoover Institution Press, 1969. Pp. 1165+xvii. Price $ 25.00
Europe: The Great Friendship: Soviet historians on the non-Russian nationalities. University of North Carolina Press, Chapel Hill. 1969. x, 468p
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