| 2001 №10 (05) | 2001 №10 (07) |
The Paton Welding Journal, 2001, #10, 20-25 pages
Powders for thermal spraying made from wastes of mill roll production
Yu.A. Kharlamov, N.A. Budagiants, A.V. Shevchenko, S.A. Yuditsky
East-Ukrainian National University, Lugansk, UkraineAbstract
The prospects of use of wastes after machining of mill rolls for commercial manufacture of inexpensive powders for thermal spraying are shown. Peculiarities of the effect of plasma spraying on adhesion strength of coatings have been investigated. It is shown that plasma coatings produced from mixtures of cast iron powders and self-fluxing nickel alloys possess high tribological properties.
Keywords: fine-dispersed wastes, mechanical mixtures of powders, plasma spraying, coatings, adhesion strength, chips, slime, cast iron powders
References
1. Borisov, Yu.S., Kudinov, V.V. (1989) Thermal srray powders of wastes of metal working: Principles of productiOn and prospects for application. Poroshkouaya Metallurgia, 10, 25 - 30.2. Borisov , Yu.S., Korzhyk, V.N., Panko, M.T. (199S) Development of the process of manuracture of thermal spray powders from gray cast iron chips. Automaticheskaya Svarka, 6, 7 - 12.
3. Borovich, T.L. , Kudinov, V.V., Pekshev, P.Yu. et al . (1983) Utilization of powders from wastes of various productions for spraying of coatings. In: Interinst. Transact. on New Methods For Spraying Protective Coatings. Kalinin: KSU.
4. Roman, O.V., Genkin, V.A., Dmitrovich, A.A. (1986) Porous material with improved performance for friction units operating in oil. In: Transact. of IPM AN USSR on New Powder Materials. Kyiv.
5. Skoblo, T.S., Vorontsov, N.M., Rudyuk, S.I. et al. (1994) Mill rolls of high-carbon alloys. Moscow: Metallurgia.
6. Budagiants, N.A., Karrsky, V.E. (1983) Cast mill rolls. Moscow: Metallurgia.
7. Libenson, G.A., Panov, V.S. (1983) Equipment of powder metallurgy workshops. Moscow: Metallurgia.
8. Nechiporenko, A.A., Martsevot·E.P. (1995) Spraying of coatings from powders of selfluxing iron-based alloys bY. the plasma-arc method. 1. Evaluation of temperature ana velocity of powder ))articles in plasma flow. Poroshkovaya Metalfurgia, 1/2, 35 - 40.
9. Nechiporenko, A.A., Martsevot·E.P. (1995) Spraying of coatings from powders of selfluxing iron-based alloys by the plasma-arc method. 2. Structure and properties of coatings. Ibid., 3/ 4, 35 - 40.
10. Koziakov, I.A., Korzhykj, V.N., Borisov, Yu.S. (1996) Strength of amorphized of ame-spray coatings produced by using fl ux-cored wires of the Fe-B system under conditions of a6rasive wear. Automaticheskaya Svarka, 11, 21 - 23.
11. Ivashko, V.S., Belotserkovsky, K.V., Bujkus, K.V. (1999) Repair of friction unit components by activated arc metallizing. Ibzd., 4, 47 - 49.