Cast iron spheroidal graphite

Tellurium also improves the properties of electrical steels by aiding in the magnetic anisotropy, malleable cast iron (77), and spheroidal (graphitic) cast irons (see also Metal surface TiiEATiffiNTs). 

O. Yanagisawa, A. Almansour, K. Matsugi, T. Hatayama. Computer simulation for sohdified microstructure prediction of spheroidal graphite cast iron of the Fe-C-Si system. J Jpn Inst Met 50 1101, 1996. 

Alloyed Iron. Tin-alloyed flake and nodular cast irons are widely used throughout the world. Estimated 1980 consumption was ca 1,200 t. As little as 0.1% tin when added to flake and spheroidal graphite cast irons in the pouring ladle gives the iron a structure that is completely pearlitic. Tin-inoculated iron has a uniformity of hardness, improved machinability, wear resistance, and better retention of shape on heating. Where pearlitic and heat-resistant cast irons are required, such as for engine blocks, transmissions, and automotive parts, tin additions may provide a suitable material. 

Extruder housing Version extruder machine body and gearbox separate, or as unit Design open ribbed-type construction, enclosed double-walled box section, self-contained design, fitted on base frame Material welded construction, cast iron, spheroidal graphite cast iron, cast steel... 

Spheroidal-graphite cast iron combines the strength, toughness and ductility of steel with the ease of casting of grey cast iron. Usually abbreviated to SG iron, it is also known as ductile or nodular iron. 

Ductile cast iron (SG) (nodular or spheroidal graphite cast iron)... 

Rounding - Spheroidal graphite cast irons (in German)... 

Spheroidal graphite cast iron 500/7 (ferrite - - pearlite) (A) Matrix 420 12... 

Spheroidal graphite cast iron 800/2 (tempered martensite) (Q-f T) 800 2... 

Where the materials of interconnecting seawater piping and the mating surfaces of the heat exchanger are dissimilar, rubber-fined couplings will be required if galvanic corrosion would otherwise occur. This is particularly important in the case of titanium and Cu/Ni dissimilar metal joints. An alternative solution that may be considered is the use of sacrificial spool pieces of austenitic spheroidal graphitic cast iron between the titanium and Cu/Ni components. 

Two types of piston ring sample were fabricated (i) plasma spray coated spheroidal graphite cast iron rings and (ii) plasma spray coated plain carbon steel rings. The cast iron rings (supplied by AE Goetze)... 

Paper XVII (ill) Friction and Wear of Spheroidal Graphite Cast Iron Under Severe Sliding Conditions... 

Friction and wear of spheroidal graphite cast iron under severe sliding conditions... 

Material Spheroidal graphite cast iron (FCD800) mild steel (SS400)... 

The hardness test was carried out for the purpose of clari fying the reduction of hardness of castiron pin by the temperature rise. The test result is shown in Fig.5. The hardness of the spheroidal graphite cast iron falls with the temperature rise. The rate of the fall of hardness is relatively moderal below 500 C, but it rapidly increases beyond 500°C and increases much more beyond 600"C. The hardness change of mild steel disk is also shown here. 

The dry friction and wear characteristics of spheroidal graphite cast iron xmder severe conditions of high sliding speed and high contact pressure were experimentally investigated. From the experimental results obtained here, the following conclusions are derived. 

E.Thkeuchi The mechanism of wear of spheroidal graphite cast iron in dry sliding , Wear, 19, 3(1972) 267... 

Paper XVn (HI) Friction and Wear of Spheroidal Graphite Cast Iron Under Severe Sliding Conditions by Mr K Hirasata, Professor K Hayashi and Mr H Matsunami (Osaka Sangyo University, Department of Mechanical Engineering, Osaka, Japan)... 

If you use a counterface material which is harder than the spheroidal graphite cast iron, the equations between p and V will change. What changes do you expect in your derived equations ... 

Reply bv the Authors The reason why the authors used a mild steel as a counterface comes from the point of practical application. The authors aim at a emergency brake of high speed elevator as a practical application. In this application, a mild steel is usually used as a counterface to a brake shoe. Therefore, it is important to choose a brake shoe material fitting the purpose. The authors have chosen a spheroidal graphite cast iron as an applicant for a brake shoe material here. 

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