Bibliography: p. 28-30.
|Statement||by L. A. Neumeier, B. A. Betts, and R. L. Crosby.|
|Series||Report of investigations - U.S. Bureau of Mines ;, 8448, Report of investigations (United States. Bureau of Mines) ;, 8448.|
|Contributions||Betts, B. A., Crosby, R. L. 1931-|
|LC Classifications||TN23 .U43 no. 8448, TS307 .U43 no. 8448|
|The Physical Object|
|Pagination||ii, 36 p. :|
|Number of Pages||36|
|LC Control Number||79024265|
Experiments in hot-rolling and forging of ductile cast iron / By L. A. Neumeier, R. L. (Robert Lynn) Crosby and B. A. (Bruce A.) Betts Abstract. The Bureau of Mines investigated hot rolling and forging characteristics of experimental ductile iron castings made with charges ranging up to 70 pct of foundry pig irons and 95 pct of a steelmaking pig iron. Both sand and permanent mold castings were evaluated. Hebatalrahman A.. The Effect of Hot Rolling on the Tribology of Ductile Cast Iron. American Journal of Materials Research. Vol. 1, No. 1, , pp. Abstract Important applications of graphite bearing ferrous metals such as graphite steel and iron are wear - resistant ones. In these work, The ductile cast iron samples were hot rolled. The authors examined the laser surface alloying with different powders on different rolls, such as C-B-W-Cr powders on high Ni-Cr infinite chilled cast-iron rolls , C-B-W-Cr and NiCr-Cr 3 C 2 powders on NCIR , NiCr-Cr 3 C 2 powders on semisteel rolls , and NiCr-Cr 3 C 2 powders on cast steel rolls .A comparison about the alloyed layer quality (cracks and pores) and the wear.
Cast Ductile Iron advanced euipment and over 15 years experience. : competetive price, Precision ence & Reasonable QC that you can reply on. 4. Process: Precision ence & Reasonable QC that you can reply on Each part would be given % test and tryout before shipment. Normalizing Ductile Iron Castings Of special interest is ThermTech’s capability to normalize ductile iron castings. Ductile Iron Castings (or DCI castings) often need special cooling rates from above the critical temperature to achieve conformance with the mechanical property requirements of a particular grade ( is the most common). Influence of pouring temperature on the microstructure in ductile cast iron Jonas Åberg, Gunnar Maltsev Hansen, Lena Magnusson Åberg Elkem AS Foundry R&D, Fiskaav. , Kristiansand, Norway It is advised to keep the melt temperature of cast iron as low as possible to avoid problems during casting. Subsequently it is subjected to the austempering process to produce mechanical properties that are superior to conventional ductile iron, cast and forged aluminum and many cast and forged steels. Figures and compare the mechanical properties of ADI to those of conventional Ductile Irons.
Heat treatment of the cast ductile iron (graphite nodules in a ferrite matrix) consists of austenization at °C for 1–3 h (Figure ) during which the matrix becomes fully austenitic, saturated with carbon as the nodules dissolve. The fully austenized casting is then quenched to around °C and austempered at this temperature for 1–3 h. Summary. Generally, the paper deals with the high-speed hot forging of grey-iron preforms. The introduction reviews past work in the field of hot working of grey cast irons and indicates the properties that are likely to be upgraded. 1) Contribution of forming parameters on the properties of hot rolled ductile cast iron alloys, Materials Letters, Vol Issues 1–2, May , Pages T. El-Bitar, E. El-Banna. Precision hot-forged gears have the same advantages over cut gears as other molded gears (cast, P/M-processed, injection-molded) in that there is little or no material lost (Figure 10). This is cost-saving from the standpoint of both the cost of the material itself and, more importantly, the cost of machining.