RESERVES COMPRESSIBILITY OF IRON POWDER
Abstract
First studied re-pressing gapless cylindrical bales produced by compressing iron powder in a split mold and re-pressing these briquettes in the same mold. The part of compressed briquettes annealed in hydrogen at 850 0C; re-pressing briquettes were carried out as in the initial state, and after brushing their surface with Vaseline. It is found that the compact briquettes improves their density after annealing is more significant than without annealing; the impact of grease on the results re-pressing slightly. It is shown that the dependence of briquette is stored pressing density from the primary compacting pressure. Re-pressing briquettes and annealing of commercial iron-based mixtures allow to identify properties and enhancement of quality of sintered powder materials.
References
2. Fedorchenko I. M. & Andrievskiyj R. A. (1963). Osnovih poroshkovoyj metallurgii. K. : Izd-vo AN USSR.
3. Hoganas iron and steel powders for sintered components (1998). Hoganas.
4. Yasnickiyj Yu. G., Zhornyak A. F., Radomihseljskiyj I. D., Popichenko Eh. Ya. Et al. (1976). Vliyanie sposobov izgotovleniya i tekhnologicheskikh kharakteristik zheleznihkh poroshkov na ikh pressuemostj. Poroshkovaya metallurgiya, 5, 91–96.
5. Zhukovskaya L. A. (1974). Issledovanie puteyj povihsheniya fiziko-mekhanicheskikh kharakteristik spechennihkh uglerodistihkh konstrukcionnihkh materialov proizvodstva. Extended abstract of candidate’s thesis. Kiev.
6. Akimenko V. B., Gulyaev I. A., Kalashnikova O. Yu. et al. (1997). Perspektivnihe marki zheleznihkh i legirovannihkh poroshkov OAO GNC CNIIChermet im. I. P. Bardina. Noveyjshie processih i materialih v poroshkovoyj metallurgii : tez. dokl. Mezhdunarodn. konf. Kiev, 78.
7. Pat. № 18857. Sposob polucheniya zheleznogo poroshka / Pioro Eh. Ch., Danilov L. I., Lipukhin Yu. V.. – Zayavl. 24.03.2004; opubl. 27.04.2004.
8. Fedorchenko I. M., Francevich I. N., Radomihseljskiyj I. D. et al. (1985). Poroshkovaya metallurgiya. Materialih, tekhnologiya, svoyjstva, oblasti primeneniya : spravochnik. K. : Nauk. dumka.
9. G. Voskstiegel (1957) Arch. Eisenhiittenwesen, 28, 3. 167.
10. Artamonov A. Ya. (1965). Vliyanie usloviyj obrabotki na fiziko-mekhanicheskoe sostoyanie metallokeramicheskikh materialov. K.: Nauk. numka.
11. Martihnova I. D. (1985). Fizicheskie osobennosti plasticheskoyj deformacii poristihkh tel. Reologicheskie modeli i processih deformirovaniya poristihkh poroshkovihkh i kompozicionnihkh materialov. K. : Nauk. dumka.
12. Sosnovskiyj L. A., Baglyuk G. A., Vlasova O. V. (2013). Osobennosti spekaniya bez ispoljzovaniya protochnihkh gazovihkh sred v konteyjnere s nepolnoyj germetizacieyj. Poroshkovaya metallurgiya, 1/2, 129–137.
