Thermal spraying of coatings using the hydrogen-oxygen flame
- Kiev Polytechnic Inst. (Ukraine)
Use of hydrogen instead of acetylene in thermal spraying has not become popular up to now because of the limited amount of information on the technological capabilities of the oxy-hydrogen flame. The data given in technical publications on the lower calorific power and temperature of the flame as compared to the oxy-acetylene flame, explosion hazard and the operational and transportation costs which have to be incurred when using the cylinders held back the use of hydrogen. The advent of mobile water electrolysis generators (WEG) which permit generation of the combustible mixture directly in site, thus eliminating the cost of using the cylinder facilities and significantly reducing the transportation costs, improved the cost-effectiveness of applying hydrogen as the gas to replace acetylene in flame spraying and other processes of flame treatment of materials. The work performed in the Kiev Polytechnic Institute showed that the use of WEG in the production of the oxy-hydrogen mixture permits a 1.5 time reduction of the power consumption, as compared to the power consumed for the production of the oxy-acetylene mixture volume equivalent as to its technological potential, if the power consumed for fabrication of the calcium carbide is taken into account.
- OSTI ID:
- 377731
- Report Number(s):
- CONF-9509182-; ISBN 0-87170-541-9; TRN: IM9643%%4
- Resource Relation:
- Conference: 1995 National thermal spray conference, Houston, TX (United States), 11-15 Sep 1995; Other Information: PBD: 1995; Related Information: Is Part Of Advances in thermal spray science and technology. Proceedings of the 8. national thermal spray conference; Berndt, C.C.; Sampath, S. [eds.]; PB: 795 p.
- Country of Publication:
- United States
- Language:
- English
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