Three dimensional model design method for riser of steel castings
1. Local modulus extraction of 3D model In the production process, the riser design of steel castings conforms to the […]
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Preparation and test methods of gray cast iron specimen materials
Gray cast iron with different carbon equivalent Ce (3.2%, 3.4%, 3.6%, 3.8%, calculated by ce=si/3+ct, Si is taken as the
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Production example of large steel casting molding process
1. Production examples of Shanghai Heavy Machinery Factory Co., Ltd Located in Minhang District of Shanghai, Shanghai Heavy Machinery Works
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Casting technology of nodular cast iron automobile brake caliper
1. Layout design Disa230b vertical parting boxless injection molding machine is adopted, and the size of molding machine plate is
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Structure and technical requirements of nodular cast iron automobile brake caliper castings
With the rapid development of the automotive industry, the requirements for automotive castings are getting higher and higher, and the
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Research on foreign casting numerical simulation technology in the 1990s
In 1991, P. Jonsson simulated the filling process of cylindrical cavity in three cases. In laminar flow, Bernoulli equation is
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Characteristics of nodular iron shell castings and original lost foam casting process
As shown in Figures 1 and 2, the lost foam casting is a shell part with a maximum size of
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Effect of rare earth on as cast microstructure of cast steel
Many researchers have found that rare earths have the effect of refining grains. The reason is that on the one
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Characteristics of molding process for large steel castings
1. Application of resin sand process Ordinary sodium silicate sand process has been used in the production of large steel
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Centrifugal casting process of bimetal composite roll
China’s iron and steel industry has developed rapidly, and its output has ranked first in the world for many years.
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Friction and wear properties of gray cast iron surface after graphitization annealing
Friction and wear tests were carried out on three gray cast iron samples annealed at 700 ℃, 800 ℃ and
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Effect of low carbon equivalent on Microstructure and properties of gray cast iron
Gray cast iron has become the preferred material for automotive parts such as engine and cylinder block because of its
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Comparison of sodium silicate sand and resin sand used in steel casting production
Because of some inherent shortcomings of sodium silicate sand, for example, the amount of sodium silicate added is high, which
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Modeling technology of large steel castings in China
Large steel castings generally refer to steel castings with a single gross weight of more than 5 t. With China’s
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Research on foreign casting numerical simulation technology in 1980s
In the 1980s, j.t. berry, a professor of Georgia Institute of technology and R.D. pehlkc, a professor of Michigan IL
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Modification of inclusions in cast steel by rare earth
The inclusions in cast steel have an important impact on the properties of cast steel products. Domestic and foreign scientific
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Purification effect of rare earth on molten steel of cast steel
(1) Deep deoxidation and desulfurization: rare earth is easy to react with oxygen and sulfur elements in the molten steel
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Graphite transformation in laser modified layer of gray cast iron
After cementite decomposition, carbon atoms diffuse from cementite austenite interface to graphite austenite interface. During annealing, carbon atoms in austenite
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Microstructure and properties of cast iron alloy by vibration lost foam casting
The purpose of combining mechanical vibration with lost foam casting technology is to solve the problems of coarse structure and
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OpenCascade environment framework and 3D rendering of steel castings
1.3D modeling system framework based on OpenCascade WxWidgets is used as the development tool of the system interface and the
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Position of white zone in nodular cast iron and its influencing factors
The existence of white zone is one of the characteristics of austempered ductile iron. Quenched martensite and retained austenite are
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Testing methods for casting coatings
Generally, for a qualified casting coating product, in order to ensure the normal realization of the function of the casting
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Research on foreign casting numerical simulation technology in 1970s
In the 1870s, many researchers from Michigan University led by R.D. pehlke and Marrone simulated the solidification process of “t”
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Application of rare earth in cast steel
Rare earth (RE) is the general name of 17 metal elements including lanthanide, scandium and yttrium in the periodic table
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Residual stress analysis of vermicular cast iron pressure plate casting
Figure 1 shows the equivalent stress nephogram of vermicular cast iron pressure plate. It can be seen that the equivalent
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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
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Changes of matrix structure of laser modified surface graphitization annealing of gray cast iron
Three kinds of gray cast iron samples annealed after heating to 700 ℃, 800 ℃ and 900 ℃ were tested
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Graphite morphology of vermicular graphite cast iron in lost foam casting
The effects of vibration frequency and molten iron treatment temperature on graphite morphology and primary phase of vermicular graphite cast
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Analysis of mechanical properties of nodular cast iron
It can be seen from the table that the tensile strength and impact toughness of nodular cast iron show high
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Research on foreign casting numerical simulation technology in 1960s
With the rapid development of computer technology, more and more researchers at home and abroad began to pay attention to