Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Centrifugal casting of drill bit cones
Experimental centrifugal casting machine was used; four typical types of bit cones were tested, with study of several variants of casting technique and of different sets of production tools; optimum mold rpm, metal pouring temperature and total cast hardening times were arrived at; casting precision, chemical analysis, and structural and mechanical properties of specimens were determined; these cones show 7 to 40% better performance and 12 to 47% greater speed than cones fabricated by stationary mold casting, when tested under identical bottom-hole conditions. (see also English translation in Chem and Petroleum Eng n 6 June 1967 p 489-92)
Centrifugal casting of drill bit cones
Experimental centrifugal casting machine was used; four typical types of bit cones were tested, with study of several variants of casting technique and of different sets of production tools; optimum mold rpm, metal pouring temperature and total cast hardening times were arrived at; casting precision, chemical analysis, and structural and mechanical properties of specimens were determined; these cones show 7 to 40% better performance and 12 to 47% greater speed than cones fabricated by stationary mold casting, when tested under identical bottom-hole conditions. (see also English translation in Chem and Petroleum Eng n 6 June 1967 p 489-92)
Centrifugal casting of drill bit cones
Tsentrobezhnoe lit'e sharoshek burovykh dolot
Sultanov, S.G. (Autor:in) / Geokchaev, T.G. (Autor:in) / Kolienko, L.P. (Autor:in)
1967
3 pages
Aufsatz (Zeitschrift)
Englisch
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