Shrinkage cavity shrinkage porosity casting defect volume
After mold filling, the volume VL ‘of molten metal in the casting is equal to the cavity volume VL minus […]
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casting shrinkage
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Formation mechanism of shrinkage cavity and porosity casting defects
Shrinkage cavity and shrinkage porosity casting defects are common defects in casting production. They are holes formed due to the
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Factors affecting casting defect volume of shrinkage cavity and porosity
The tendency of shrinkage cavity and porosity casting defects is related to the solidification mode. During layer by layer solidification
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Prediction of shrinkage cavity and porosity casting defects in sand castings
The numerical simulation of sand casting defects is based on the temperature field and shrinkage cavity and porosity criteria during
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Effect of shell preheating temperature on shrinkage cavity and porosity of castings
Parameter setting: when the pouring temperature is 1550 ℃ and the pouring speed is 30mm / s, the shell preheating
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Effect of pouring temperature on shrinkage cavity and porosity of castings
Parameter setting: when the pouring speed is 30mm / s and the shell preheating temperature is 600 ℃, the pouring
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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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The solidification process of nodular iron castings leads to shrinkage cavity and porosity
At present, in the production of nodular iron castings, there are often shrinkage porosity and shrinkage cavity, and there are
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Simulation results and analysis of shrinkage porosity and shrinkage cavity in sand casting of mud pump body
Shrinkage porosity and shrinkage cavity are the most common defects in the process of sand casting, and they are also
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Shrinkage porosity and shrinkage cavity in steel castings
During solidification, the steel casting will produce liquid shrinkage and solidification shrinkage. When the feeding system cannot provide sufficient liquid
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Analysis and comparison of shrinkage cavity, porosity and solidification defects in sand casting
Shrinkage cavity in sand casting is a common casting defect, which is basically a volume loss defect. According to the
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Cause analysis of shrinkage porosity of nodular iron castings
Nodular cast iron solidifies in “paste”. Compared with gray cast iron, eutectic solidification time is long, the number of eutectic
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Shrinkage porosity of nodular iron castings of wind turbine unit
The operation environment of wind turbine is relatively bad, and the supporting large parts should be used for a long
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Defects of High Toughness Nodular Cast iron cylinder head
The cylinder heads of high-speed and heavy-duty marine diesel engines are mostly high toughness ductile iron (see Figure). The cooling
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Hot joint analysis and riser design of nodular iron main reducer shell cover to avoid shrinkage defects
Casting hot joints are generally divided into structural hot joints and process hot joints. Structural hot spot refers to the
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Selection of parting surface and pouring position of nodular iron main reducer shell cover to avoid shrinkage defects
For the horizontal box free molding line, the parting surface of the production main reducer shell cover is generally selected
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Shrinkage cavity and porosity defect of nodular iron main reducer shell cover
The main reducer housing cover is an important component of heavy truck axle, which is matched with the main reducer
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Analysis and solution of shrinkage defect of High Toughness Nodular Cast iron cylinder head
1. Cause analysis This type of cylinder head integrates the intake pipe and rocker shaft seat on the basis of
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Prevention of shrinkage porosity of nodular iron castings
1. Chemical composition control The chemical composition of nodular cast iron for wind turbine shall be strictly controlled, especially C,
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Solution of shrinkage defect in die casting front cover by local extrusion
1. Analysis of extrusion position Because the leakage position is between the two oil passages on the moving die side,
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Solution of shrinkage defect in die casting front cover
With the development of automobile manufacturing industry, the requirement of reducing energy consumption is higher and higher. Automobile parts are
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Sand casting bridge shell casting technology shrinkage of bridge shell
The linear shrinkage of the bridge shell has a great influence on the accuracy of the size of the bridge
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Analysis and comparison of shrinkage and porosity solidification defects of molten metal in sand casting axle housing
Shrinkage cavity is a common casting defect, which is essentially a volume defect. According to the causes, it can be
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Analysis of the influence of the composition of nodular cast iron on shrinkage and porosity tendency
According to the test results of shrinkage and porosity defects, the shrinkage and porosity defects are mainly concentrated on the
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Effect of composition of nodular cast iron on shrinkage and porosity
After shot peening and grinding, ut test was carried out on the surface of the test block after sanding, and
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Application of Proportional Solidification Technology of nodular cast iron in prevention and control of shrinkage cavity and porosity
By analyzing and mastering the proportional solidification technology of nodular cast iron into the cylinder, the cooling rate is changed
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Distribution of isolated hot spot and shrinkage porosity in heavy section position of ductile iron intake cylinder
Shrinkage cavity and shrinkage porosity are common internal casting defects in heavy position of ductile iron castings. The shrinkage cavity
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Effect of mold temperature on shrinkage and porosity of semi solid die casting thick wall castings
In this experiment, the method of controlling variables is adopted. The mold temperature is set as 230 ° C, 140
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Statistical analysis method of shrinkage cavity and porosity in semi solid die casting thick wall casting
Shrinkage porosity defect is the key research object of this project. The observation method for this defect is fluorescence penetration
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Effect of handle thickness on shrinkage cavity and porosity of semi solid die casting thick wall casting
In this test, the control variable method is adopted, and the material handle thickness is set as 16mm, 31mm, 42mm