Test of QT500-14 and QT600-10 High Silicon Ductile Iron
1.Test result The large number of tests have been carried out according to the above process plan, and the overall […]
1.Test result The large number of tests have been carried out according to the above process plan, and the overall […]
Three kinds of gray cast iron samples annealed after heating to 700 ℃, 800 ℃ and 900 ℃ were tested
The effects of vibration frequency and molten iron treatment temperature on graphite morphology and primary phase of vermicular graphite cast
It can be seen from the table that the tensile strength and impact toughness of nodular cast iron show high
The cloud diagram of solid phase distribution of vermicular cast iron is shown in Figure 1. From the solid phase
In order to minimize the content of harmful elements, the selected raw materials should be relatively pure, so high-quality pig
1. Selection of raw materials Due to the inherent performance characteristics of wind power ductile iron castings, the requirements for
Friction coefficient and wear amount are important parameters to characterize the wear resistance of materials. The higher the surface hardness
The effects of vibration frequency and amplitude on graphite morphology, primary austenite and properties of vibration lost foam casting gray
At different austenitizing temperatures and isothermal temperatures, the bending fatigue test results of ductile iron specimens at room temperature are
The pouring conditions of vermicular cast iron pressure plate are as follows: pouring temperature 1419 ℃, pouring speed 0.55m/s, pouring
In ProCAST, tetrahedral mesh model is commonly used for mesh generation. The quality of mesh usually affects the accuracy of
According to the relationship between the elongation and Si content of nodular cast iron, as well as the internal control
1. Microstructure The microstructure photos of titanium containing aluminum alloy ADC12-0.25Ti samples cast at different temperatures are shown in Figure
After laser melting, the microhardness of gray cast iron surface in different areas is divided into three obvious sections, among
The tensile test shall be carried out in accordance with gb/t 228-2002 tensile test method for metallic materials at room
1. Selection of casting method The wall thickness of the casting is thin, the flow resistance of the molten metal
With the development of science and technology and the continuous innovation of cast iron production technology, the ductile iron grades
According to the results of chemical elements, the chemical composition of steel castings meets the requirements of ZG30CrNiMo steel in
Fig. 1 corresponds to the cross-sectional morphology of the surface of gray cast iron melting layer after continuous impact of
1. Large hydraulic press Composite squeeze casting is a new squeeze casting method proposed in. At present, there is no
Taking the profile bar on a track powered rolling car as an example, the material of the steel casting is
The cooling curves of typical flake graphite cast iron and nodular cast iron are shown in the figure. It can
The figure shows the hardness change of white cast iron in lost foam casting with and without vibration. It can
As cast crankshaft castings with nodular cast iron trademark of QT800-2 are selected as the samples. After testing, the nodularity
Aluminum alloy castings are widely used in railway, military, aerospace, automotive, medical and other fields because of their good comprehensive
1. Fractograph The fracture morphology of impact sample was observed by Zeiss evo15 scanning electron microscope. The fracture morphology of
Due to the temperature gradient generated in the process of laser melting of gray cast iron and the transformation of
According to the definition of composite squeeze casting, the process flow of the composite squeeze casting forming method is as
The picture shows the microstructure of white cast iron with different wall thickness. Among them, figures (a) – (c) are