Design of gating system for lost foam casting of cast steel valve body
According to the analysis of the original process scheme of the valve body, it can be seen that the improper […]
According to the analysis of the original process scheme of the valve body, it can be seen that the improper […]
The tensile specimens of room temperature nodular cast iron as cast and treated at different normalizing temperatures were tested at
Figure 1 shows the distribution of shrinkage cavity and porosity predicted by numerical simulation technology under the original process scheme.
The samples as cast and normalized were observed by Kearns vh-5000 ultra depth of field optical metallographic microscope. The metallographic
During the mold test of the cylinder head, the casting air hole defect on the oil cover shell surface is
ZHY casting adopts 20 ~ 40 mesh quartz sand and manual bag sand adding method. The size of sand box
The structure of the flywheel housing is relatively complex and belongs to a typical thin-walled shell structure. Due to the
The low-pressure casting simulation model of flywheel housing is established by ProCAST. The simplified three-dimensional digital model of the die
Based on the above experimental results, in order to verify the effect of molybdenum on the tensile strength of gray
Molybdenum is an element with strong affinity with carbon, which is conducive to the formation of the second phase particles
According to the different matrix structure, it can be divided into ferrite matrix gray cast iron, pearlite ferrite matrix gray
Graphite parameters such as type, content and length in gray cast iron have an important influence on its tensile strength.
Fig. 1 shows the scanning electron microscope BSE photos of gray cast iron samples with different molybdenum content. It can
Figure 1 and Figure 2 show the microstructure of gray cast iron corroded by 4% Vol. nitric acid alcohol under
Figure 1 shows the graphite morphology of samples S1 ~ S4 in Table 1 observed under scanning electron microscope. According
HT250 and HT200 gray cast iron are made of lost foam casting and clay sand casting to improve the tensile
HT250 finished brake hub produced by ZHY casting is melted in cy-sp35-vim temperature controlled high frequency induction furnace, argon is
The microstructure of primary austenite after heat treatment of four kinds of experimental gray cast iron is shown in the
Gray cast iron wheel hub is one of the important parts of heavy-duty truck. When heavy-duty truck travels down the
Gray cast iron is a low-cost material. It has good thermal conductivity, good mechanical properties and wear resistance due to
As shown in the figure, the hardness and tensile strength results of vanadium titanium gray cast iron with different components
Figures (a) ~ (d) are metallographic photos of vanadium titanium gray cast iron with different components. It can be seen
1. Composition design In order to understand the influence of vanadium, titanium, carbon and silicon content on the microstructure and
The thermal fatigue resistance of gray cast iron can be characterized by its tensile strength at corresponding temperature, which has
1. Tensile strength test The experimental results of tensile strength of samples after different high temperature oxidation cycles are shown
1. High temperature oxidation cycle test The size shall be 30 mm in a muffle furnace × 30 mm ×
Nodular cast iron has high mechanical properties, good sand casting performance, good fluidity, no hot crack tendency, shrinkage and high
Among all the components of water-based lost foam casting coating for cast iron, refractory aggregate is the main part. The
Gray cast iron is a common material for the production of ingot mold, chassis, sintering grate and industrial valves. Its
1. Water based lost foam casting coating test materials Bauxite: the main mineral composition is mullite, which has the advantages