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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Analysis of mold filling process of sand castings
The single side bottom pouring with internal gate is adopted. The flow and temperature distribution of ZL105 metal liquid filling
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Thermophysical properties related to heat transfer in casting process
It mainly studies the thermophysical properties related to heat transfer in the casting process, such as thermal conductivity and specific
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Simulation of sand casting
The thermophysical parameters of materials are used in the computer simulation of sand casting process, and this parameter plays a
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Overview of sand casting technology
Before producing sand castings, we should first prepare more scientific documents that can control the production process of this kind
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Cylinder block structure and lost foam casting process
1. Structural analysis of cylinder block The schematic diagram of a 12 cylinder block is shown in Figure 1. The
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Simulation software for mold filling and solidification process of casting
The development of numerical simulation of sheet metal flow in 1987 is limited by the development of computer simulation of
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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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Analysis of solidification process of sand casting
Fig. 1 shows the temperature field changes of sand castings at 10s, 60s, 130s and 340s after the molten metal
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Performance test of a new vibrating system for lost foam casting
1. Vibration consistency test Take 18 positions on the sand box, and take 3 ~ 4 points at different heights
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Sand mold technology of automobile engine cylinder block in China
Hangzhou engine factory mainly produces six cylinder engine (HT250). Equipment: one kW static pressure line, one BMD air flushing line,
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Research status of simulation of casting mold filling and solidification process
After decades of development, the computer simulation of casting filling and solidification process has After decades of development, the computer
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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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Numerical simulation of China casting
Casting is a traditional and ancient production technology with a history of more than 4000 years. China is a big
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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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Analysis of solidification process of sand casting
Observing the change of temperature field in the solidification process of sand castings can accurately predict the location of shrinkage
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Chemical composition analysis of cast low alloy bainite wear resistant steel shovel teeth
1.Impact of carbon It can be seen from Fig. 1 and Fig. 2 that the toughness of steel decreases with
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Application status of vibrating system in lost foam casting
1. lost foam casting vibrating system ZHY casting adopts 20 ~ 40 mesh quartz sand and manual bag sand adding
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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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Influence mechanism of inoculation treatment on Microstructure and mechanical properties of experimental gray cast iron
It can be seen from the experiment that in terms of mechanical properties, the mechanical properties of experimental gray cast
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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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Study on primary austenite dendrite of high strength gray cast iron
Most of the gray cast iron used in engineering belongs to hypoeutectic gray cast iron. During crystallization, this gray cast
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Doe analysis of surface nitriding of precision casting parts
The main causes of poor plasma nitriding of precision casting parts are heat treatment temperature, heat treatment time, nitrogen concentration,
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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,