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 […]
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casting shrinkage
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Effect of pressurization pressure on shrinkage porosity of semi solid die casting thick wall castings
In this test, the method of variable control was adopted. Under the condition of other parameters unchanged, the boosting pressure
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Brief introduction of shrinkage cavity and porosity in semi solid die casting
In the defect analysis of semi-solid thick wall products, shrinkage cavity and porosity are the typical defects studied. In the
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Basic measures to prevent shrinkage porosity of nodular graphite castings
Inoculation treatment: inoculation treatment of nodular cast iron can improve the roundness of graphite ball, improve the spheroidization rate, and
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Basic measures to prevent shrinkage porosity of castings
The causes of shrinkage cavity and porosity of nodular cast iron are complex. The main factors affecting primary shrinkage, volume
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Causes of shrinkage porosity in ductile iron castings
The solidification process of ductile iron castings is generally a process of shrinkage, expansion and re shrinkage. Although the precipitation
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Analysis of solidification shrinkage of a new type aluminum silicon based casting shell
In the high temperature compression test of Al Si based casting materials, the samples have compression deformation under different temperature
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Prevention method of valve casting shrinkage
Shrinkage is the physical nature of the alloy. Under normal pouring temperature, the shrinkage volume of the alloy with fixed
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Effect of mold condition on shrinkage tendency of castings
The effect of mold conditions on the shrinkage tendency of castings is mainly due to mold wall expansion. On the
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The control of phosphorus content in hot metal composition affects the design of anti shrinkage process of castings
The effect of phosphorus on the shrinkage defects of castings is shown in two aspects: one is that phosphorus, as
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The influence of sulfur content on the composition of molten iron on the design of preshrinking process
For many foundries whose production mode is from cupola to induction furnace, there is also a running in process for
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The control of carbon content in hot metal composition affects the design of anti shrinkage process of castings
The composition control of molten iron plays a very important role in the process design of casting anti shrinkage. Zhang
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Consideration of casting properties in the process of casting shrinkage prevention
Although the anti shrinkage factor is a factor that must be considered in the casting process, recently, with the market
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Research on the shrinkage proof technology of typical large-scale cast iron crossbeam
This type of beam is one of the main parts of a large machine tool. The quality of the casting
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Study on the anti shrinkage process of ingot mould for typical large iron castings
Ingot mold is a kind of necessary ingot equipment used in mold casting production in steel plant. Although its shape
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The influence of metallurgical and modeling factors on shrinkage porosity
At present, there are many researches on the influence of metallurgical and molding factors on shrinkage cavity and porosity of
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The main factors of cracks in aluminum alloy wheel during low pressure casting
For the same alloy, whether the hub cracks or not often depends on the hub structure, process parameters and mold
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Analysis of common defects in castings
Casting porosity This is a small cavity formed by the gas which can not escape during the solidification of metal.
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Prevention methods of shrinkage cavity and porosity in cast iron
Features: in the thick section of the casting, hot spot or axis and other places of the final solidification, rough
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Casting shrinkage defects in engine cylinder block and cylinder head
The structure of cylinder block (cylinder head) casting is complex, and the wall thickness is quite different. The thick and
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Shrinkage and porosity defects of ductile iron casting and their prevention
The shrinkage porosity and porosity are more common in ductile iron than in ordinary gray iron. To prevent them, more
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Common casting defects and preventive measures
1.Porosity Casting defect characteristics Inside, on or near the surface of the casting, there are smooth holes with different sizes,