Application of Rare Earth Element as Grain Refining Material in Cast Steel
Rare earth elements used in foundry industry are mainly light rare earth elements such as cerium and lanthanum, which have […]
Rare earth elements used in foundry industry are mainly light rare earth elements such as cerium and lanthanum, which have […]
By observing the surface of the sample during the corrosion process, no obvious bubbles were found on the surface of
Nb has strong affinity with oxygen, nitrogen and carbon in steel, and its function is similar to that of Ti.
Foundry practice teaching is an important part of metalworking practice course.The key content of this research is how to optimize
The unit area gain of high nickel ductile iron at 900 C for different working hours is recorded in Figure
More than 50 years ago, J.F. Wallace and his research team studied the role of various materials as grain refiners
Foundry industry in various industrial countries has paid more attention to grain refinement of cast steel for more than 60
The prepared sample is heated in a resistance furnace and weighed with an electronic balance.Figure 1 shows the measurement results
In order to understand the oxidation conditions at the cracks, elemental analyses are carried out on the areas of Fig.
1. Homogeneous nucleation is not possible for actual production In order to realize homogeneous nucleation in homogeneous liquid phase, the
The sample size for thermal fatigue test is 15 mm x 10 mm x 10 mm.To eliminate the influence of
The temperature range of the thermal cycle (T) is equal to the upper limit temperature of the thermal cycle (T)
There may be two different mechanisms to refine the grains of casting alloy by adding refiners, and their effects on
1. Selection and determination of detection method As a key part of the pump body, the impeller of desulfurization pump
In recent years, for the consideration of sustainable development, in the application of steel castings, on the one hand, it
1. Application of Tool Composite Technology In the process of steering knuckle of automobile parts, tool compound technology has outstanding
In the early 1920s, both a.m. Meehan and Crosby of the United States began to discuss the inoculation treatment technology
1. Design of compensation system and air outlet Based on the analysis results, the top area of the casting finally
1. Filling Process Analysis The filling process simulation analysis of Figure 5 shows that the filling time of the casting
The flow of liquid metal in filling process has a great influence on the quality of casting. If the design
The surface of the blade of the sulfur pump impeller and the surface of the blade are calculated to achieve
Compared with iron and steel, aluminum alloy has many advantages, but it also has some disadvantages, such as its specific
Gasket castings are produced by two pieces in one box. Considering the same distance from the casting system to each
Gasified pattern casting is a new casting method in the late 1950s. Some aluminum castings for automobile lightweight, such as
1. Main Contents of Core Design As the cushion block belongs to the flat casting, its structure is complicated and
Although the melting point of rare earth oxide is very high, it is unstable at steelmaking temperature and has strong
The formation of grain core is called nucleation. There are two different ways of nucleation in liquid metal crystallization (1)
For all kinds of cast alloys, grain refinement is an important measure to improve the metallurgical quality. If the grain
The turbine housing castings are made by sand casting, and the forming process mainly includes molding, coring, drying, closing, pouring,
Cosworth method is developed by Cosworth research and development company and GKN United Company in the mid-1970s. It is a