Analysis of mold filling process, solidification process and casting defects in investment casting of bearing support
As shown in Figure 1: after the investment casting pouring starts, the liquid fills the main sprue in about t […]
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Simulation analysis of investment casting of bearing support
The mechanical parts of topology design must have good manufacturability before the products have practical value. The product of topological
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Theoretical basis of mold filling process in investment casting
In the process of investment casting, although the movement of metal pouring fluid is very complex, it will strictly follow
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Design of gating system for traditional sand mold casting
(1) The minimum sectional area of gating system shall be determined. The minimum area of gating system is generally calculated
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Design of lost foam casting process simulation experiment
In the study of lost foam casting process, the process parameters that have a great impact on the quality of
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Impeller investment casting – sand casting check the pouring time according to the rising speed of liquid level
According to empirical parameters, when the wall thickness of impeller investment casting sand casting is > 40 mm, the minimum
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Matrix structure of lost foam casting and sand casting of gray cast iron
Figure 1 and Figure 2 show HT250 and HT200 gray cast iron respectively Φ The matrix structure of 30mm test
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Dewaxing of impeller shell in investment casting
Because the investment mold of impeller blade is fixed with rosin wax based mold material and sodium silicate sand sleeve,
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Development of the mould material formula for impeller blade in investment casting
The quality of investment casting directly affects the geometry, dimensional accuracy and surface roughness of investment casting impeller. When investment
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Graphite morphology in lost foam casting and sand casting of gray cast iron
Figure 1 and Figure 2 show the graphite structure of HT250 and HT200 gray cast iron under the conditions of
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Test scheme and method of lost foam casting gray cast iron
1. Sample preparation According to the requirements of GB / t9439-2010 lost foam casting gray iron castings, it is used
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Effect of alloying element Mo on thermal fatigue properties of high strength gray cast iron
The effect of alloy element Mo on the thermal fatigue properties of gray cast iron was analyzed by comparing two
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Carbon emission calculation based on sand casting process parameters
According to the three carbon source calculation models based on three types of sand casting process parameters, the total carbon
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Effect of alloying element Mo on Microstructure of high strength gray cast iron
The effects of alloying element Mo on the microstructure and mechanical properties of high-strength gray cast iron were compared and
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Analysis of factors affecting the surface hardness of gray cast iron cylinder head
1.Effect of aging treatment For the engine parts of gray cast iron cylinder head, such as cylinder block, cylinder head,
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Performance results of high strength gray cast iron locating plate
Pour a positioning plate product. The maximum wall thickness of the casting is 90 mm, the minimum wall thickness is
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Effect of modifier content on thermal fatigue properties of high strength gray cast iron
In the process of thermal cycle, cracks caused by periodic stress due to internal temperature difference, hindered shrinkage and thermal
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Classification of piston casting defects
Casting defect Cause Improvement measures Increase or decrease in outer diameter The external mold shrinks and deforms, the direction of
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Effect of modifier content on mechanical properties of high strength gray cast iron
The microstructure characteristics of gray cast iron determine its mechanical properties. For the microstructure of gray cast iron, the finer
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Effect of modifier addition on Microstructure of high strength gray cast iron
The modifier used in the study is jf-1 modifier. In the experiment, the composition of gray cast iron and the
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Production technology of frame shell casting
ZHY casting has developed a frame shell casting with material grade of HT250 and overall dimension of 1300 mm ×
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Effect of inoculation treatment on turning performance of experimental gray cast iron
Most gray cast iron castings can become machine parts only after turning. The turning performance directly affects the processing quality
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Effect of inoculation treatment on Microstructure of experimental gray cast iron
The composition of the experimental gray cast iron and the types of inoculants added. By comparing and analyzing the effects
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Strengthening high strength gray cast iron by adjusting the content of Mn and S
Adding alloying elements to cast iron can improve the strength of gray cast iron. The effects of manganese, some alloying
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Strengthening high strength gray cast iron by optimizing carbon equivalent and silicon carbon ratio
Adjust carbon equivalent and silicon carbon ratio. In the solidification of gray cast iron, the carbon equivalent directly affects the
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Method of simulating lost foam casting process of nodular cast iron based on ProCAST
Because there is no solid phase in the initial state of the mold cavity during the micro model calculation, and
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Introduction of numerical simulation method of lost foam casting mold filling
At the same time, considering the pressure and speed in the filling process of lost foam castings, so far, the
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Solidification simulation and optimization of large turbine volute in sand casting
The solidification process of sand castings is directly related to the shrinkage cavity, porosity and stress concentration of sand castings.
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Process design of sand core for sand mold casting of large turbine volute
1. Sand core design of sand mold casting The core is made of furan resin self hardening sand. Because the
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Sand mold casting process design of large turbine volute
The spiral case is made of QT500-7, and its chemical composition is shown in the table. The production nature of