Floating graphite on top of Heavy Section Ductile Iron
In order to study the effect of composition on the morphology of thick and large section graphite, bulk sampling was […]
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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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Casting melting composition and process setting
In order to ensure that the experiment has accurate guidance for the inlet cylinder casting, the stepped shaped test block
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Effect of chemical composition on casting properties of ductile iron
The chemical composition directly affects the matrix structure and mechanical properties of nodular cast iron castings. Reasonable chemical composition is
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Formation mechanism and prevention and control of main defects in nodular cast iron intake cylinder casting
(1) The elements with high content of C, O, Al, Si and some other alloy elements are found in the
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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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Formation mechanism and causes of metallographic defects in special parts of ductile iron
When the carbon content is increased to solve the shrinkage cavity and porosity defect, the top graphite floating and the
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Solidification theory of isolated hot spot and thick section of nodular cast iron intake cylinder
In theory, the whole process can be summarized into three important stages: primary shrinkage (liquid shrinkage), volumetric expansion (graphitization expansion)
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Volume change curve of nodular cast iron during solidification
The distribution of physical hot spots is special and the solidification process is complex. The distribution of hot spots directly
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Hot spot distribution analysis of nodular cast iron in Cylinder Casting
Casting hot spot refers to the local area of final solidification formed by the internal solidification speed being slower than
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Forming mechanism and prevention and control measures of shrinkage defects of nodular cast iron in cylinder
During ut inspection, the main defects exceeding the standard were shrinkage cavity and porosity defect. In the subsequent finishing process,
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Application of ductile iron gating system in prevention and control of surface slag inclusion defects
The whole process from molten iron smelting to casting completion is a complex and irreversible process. In the process of
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Classification of common gating system for ductile iron cylinder
① According to the ratio of cross-sectional area, it is divided into closed gating system and open gating system. The
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Flow characteristics of each component in the gating system of ductile iron into cylinder
① The main function of the sprue is to guide molten iron into the runner or runner. According to the
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Hydraulic analysis of liquid iron filling in cylinder of nodular cast iron
The molten iron enters the mold filling process through the gating system, which can be seen as a liquid with
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Morphology and composition analysis of linear defects on inlet cylinder surface
The main characteristics of the magnetic traces of linear defects detected by MT are mainly linear aggregated magnetic traces with
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Morphology and composition analysis of point defects on inlet cylinder surface
The main features of magnetic traces of point defects detected by MT. The magnetic traces are scattered and isolated small
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Analysis of solidification characteristics of nodular cast iron for intake cylinder
The inlet cylinder is one of the typical high difficulty ductile iron castings. Its solidification characteristics are closely related to
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Technological characteristics of nodular cast iron in cylinder
The inlet cylinder casting is composed of flange, brace, volute and other parts of cross connection. In the study, the
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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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Technical requirements of nodular cast iron in Cylinder Casting
Nodular cast iron intake cylinder is one of the important parts in the front end of heavy duty gas turbine
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Runner section shape of gating system for engine block iron castings
The section shape of gating system runner mainly refers to the section shape of ingate and cross runner. The cross-section
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Design of casting process parameters for engine block iron castings
The research of gating system parameters design is to analyze the statistical law of pouring process parameters, mainly including flow
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Statistical study on gating system of engine block iron castings
30 casting samples of cylinder block were selected. The pouring information was counted, including the casting mass (unit: kg), pouring
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Theory of large hole outflow in casting system of cylinder block
The technological principle of pouring system for cylinder body iron castings is: conveying liquid metal to the inside of the
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Statistical study on chill of iron castings
Application Statistics of cold iron in cylinder block iron castings. It can be seen from the statistical cases that HT200
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Microstructure of 6061 aluminum alloy wheel hub by liquid die forging
6061 aluminum alloy wheel hub was prepared by liquid die forging, and its structure is shown in Fig. 1. Samples
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Slag inclusion defect on casting surface of nodular cast iron intake cylinder
The surface slag inclusion defect is the most common and the most difficult to avoid on the surface of gas
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Riser free process for iron castings
The large cylinder block iron castings are typical thick large iron castings, and the riser free process is mainly used.
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Technology of duck beak riser on top of iron castings
The top duckbill riser technology is based on the design theory of direct practical riser technology, which is mainly used