Casting defects of shrinkage porosity and shrinkage cavity in nodular cast iron
Shrinkage cavity and porosity are shrinkage casting defects produced in the solidification process of nodular cast iron. The solidification characteristics […]
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nodular cast iron
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Casting technology of nodular cast iron
With the rapid development of automobile industry, the production and sales of engine are also increasing year by year. As
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Sand coating process of nodular cast iron crankshaft iron mold
Iron mold coated with sand has long manufacturing cycle, high cost and complex process test. Once the process design fails,
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Macro morphology and analysis of fracture surface of nodular cast iron
In order to further study the impact toughness of nodular cast iron for wind power fittings, the impact fracture of
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Manufacturing technology of nodular cast iron crankshaft
The manufacturing process of cast crankshaft generally starts from the aspects of molten iron melting, spheroidizing treatment, inoculation treatment, alloying,
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Preparation technology of nodular cast iron crankshaft
The commonly used crankshafts at home and abroad are divided into two categories according to materials, forged steel and ductile
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Inspection of nodular cast iron wind power castings
The testing experiments of nodular cast iron wind power castings include chemical composition testing, mechanical property testing, metallographic structure analysis
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Low temperature impact toughness of nodular cast iron
Starting from the research on the low-temperature impact toughness of nodular cast iron, the chemical composition, mechanical properties, metallographic structure
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Spheroidizing process of nodular cast iron
At present, the most commonly used spheroidizing agent for nodular cast iron in China is rare earth silicon iron magnesium
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Relationship between microstructure and mechanical properties of nodular cast iron
Both graphite ball and matrix will affect the mechanical properties of nodular cast iron. It is found that with the
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Characteristics of nodular cast iron for wind power fittings
Referring to the latest ductile iron standard GB / t1348-2009, the brand, mechanical properties and metallographic structure of ductile iron
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Production of low temperature ductile nodular cast iron
In the production of low temperature ductile nodular cast iron, the common method is to add nickel, which can improve
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Observation and analysis of matrix structure of nodular cast iron
According to GB9441-2009 metallographic inspection standard for nodular cast iron, the pearlite content in the as cast matrix is graded.
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Selection of spheroidizing process for nodular cast iron
The spheroidizing treatment process of nodular cast iron mainly includes the types of spheroidizing agent and the adding method of
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Observation and analysis of nodular cast iron
Through the observation of metallographic photos, the spheroidization level of a1-a8 and B1-B4 and the size level of nodular graphite
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Effect of low temperature on impact toughness of nodular cast iron
The figure shows the change law of impact toughness of nodular cast iron of B2 and B4 samples with temperature.
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Effect of heat treatment process on mechanical properties of nodular cast iron
The figure shows the difference of mechanical properties of nodular cast iron of series a samples under as cast and
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Effects of other production processes on mechanical properties of nodular cast iron
In addition to chemical composition, the influence of other production processes mainly refers to the influence of melting process, spheroidizing
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Effect of bismuth content on mechanical properties of nodular cast iron
Bismuth can significantly increase the number of graphite spheres. When the number of graphite balls in nodular cast iron increases,
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Sand coated casting technology of nodular cast iron crankshaft
In order to reduce the process cost, the mold filling process and casting cooling process were studied respectively. The Nodular
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Effect of copper content on mechanical properties of nodular cast iron
Copper can promote the formation of pearlite structure, improve the uniformity of microstructure and properties of nodular cast iron, increase
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Effect of silicon content on mechanical properties of nodular cast iron
The effects of silicon, copper and Bismuth on mechanical properties were analyzed. The figure shows the effect of silicon on
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Process parameters in melting experiment of nodular cast iron
During the sample preparation of nodular cast iron, the discharge temperature, pouring temperature, spheroidizing treatment time and total pouring time
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Production process design of nodular cast iron
The production process of nodular cast iron to be designed in the experiment mainly includes melting process, molding process, spheroidizing
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Trace elements in nodular cast iron of wind power castings
Trace elements are interfering spheroidizing elements, but due to the neutralization effect of rare earth elements added in production, adding
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Selection of inoculation treatment process for nodular cast iron
After spheroidizing treatment, spheroidizing elements will make nodular cast iron have a greater tendency to white. At this time, inoculation
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Effect of chemical composition on as cast microstructure of nodular cast iron
(1)Cu Copper plays an important role in controlling the matrix structure of as cast nodular cast iron. Adding copper is
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China nodular cast iron wind power castings
Domestic research on low temperature impact toughness of nodular cast iron started late, but it has developed rapidly in recent
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Chemical composition of nodular cast iron
The research on the chemical composition of nodular cast iron provides a reliable basis for the composition design of the
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Impact toughness of nodular cast iron
Focusing on the low-temperature impact toughness of nodular cast iron, the relationship and influence between production technology, metallographic structure and