Quality control technology for melting nodular cast iron melt in medium frequency furnace
1. Chemical composition design When the diameter of roll body is more than 600 mm, the carbon equivalent is 3.8% […]
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nodular cast iron
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Factors affecting the quality of nodular cast iron roll produced by medium frequency furnace
1. Main quality problems of rolls Produced φ 800 mm × 1880 mm high chromium cast iron roll (as shown
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Production of nodular cast iron roll in medium frequency furnace
The medium frequency furnace is used to produce cast iron rolls of various purposes and materials, and the core is
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Nodular ductile iron spent fuel storage and transportation container
In the 1980s, Siempelkamp company of Germany successfully developed castor series nodular cast iron transport containers. Compared with other metal
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Quality improvement of nodular cast iron roll produced by medium frequency furnace
1. Metallographic comparison The metallographic structure comparison before and after the improvement of the process of producing nodular cast iron
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Determination of casting process scheme of nodular cast iron intercooler base pipe
1. Molding process The two box core molding is adopted, and the sand filling core under the side molding is
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Melting process of nodular cast iron punch disc casting
1. Spheroidizing treatment Graphite distortion and fragment graphite will be produced in nodular cast iron with thick and large section
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Production practice of Austempered Nodular Cast Iron front axle
The solidification characteristics of heavy section nodular cast iron castings are: short liquid solidification time, long eutectic solidification time, and
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Lost foam casting process of nodular cast iron vacuum pump shell casting
The shell of the water ring vacuum pump used by ZHY Casting is welded with steel plates and processed into
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Application prospect of high Si nodular cast iron
Table 1 shows the impact absorption energy of nodular cast iron V-notch samples at different ambient temperatures. The samples are
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Advantages and disadvantages of high Si nodular cast iron
1. Advantages Referring to the Research Report of zhangboming et al. And in combination with the analysis and research of
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Inspection of nodular cast iron automobile brake caliper castings
1. Chemical composition detection Arl3460 direct reading spectrometer is used for chemical composition detection, and the chemical composition detection results
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Production verification of nodular cast iron automobile brake caliper casting
1. Molding sand properties In order to ensure good surface quality of castings, the performance of green molding clay sand
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Casting technology of nodular cast iron automobile brake caliper
1. Layout design Disa230b vertical parting boxless injection molding machine is adopted, and the size of molding machine plate is
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Structure and technical requirements of nodular cast iron automobile brake caliper castings
With the rapid development of the automotive industry, the requirements for automotive castings are getting higher and higher, and the
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Position of white zone in nodular cast iron and its influencing factors
The existence of white zone is one of the characteristics of austempered ductile iron. Quenched martensite and retained austenite are
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Test of QT500-14 and QT600-10 High Silicon Ductile Iron
1.Test result The large number of tests have been carried out according to the above process plan, and the overall
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Analysis of mechanical properties of nodular cast iron
It can be seen from the table that the tensile strength and impact toughness of nodular cast iron show high
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Melting process of high silicon nodular cast iron
In order to minimize the content of harmful elements, the selected raw materials should be relatively pure, so high-quality pig
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Fatigue properties of nodular cast iron
At different austenitizing temperatures and isothermal temperatures, the bending fatigue test results of ductile iron specimens at room temperature are
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Tensile test and impact test of nodular cast iron
The tensile test shall be carried out in accordance with gb/t 228-2002 tensile test method for metallic materials at room
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Cooling curve of flake graphite cast iron and nodular cast iron
The cooling curves of typical flake graphite cast iron and nodular cast iron are shown in the figure. It can
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Test of nodular cast iron
As cast crankshaft castings with nodular cast iron trademark of QT800-2 are selected as the samples. After testing, the nodularity
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Influence on properties of nodular cast iron
On the premise of good spheroidization of graphite, the mechanical properties of nodular cast iron can be adjusted in a
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Solution to shrinkage cavity defect of nodular cast iron reducer shell by lost foam casting
There are two traditional solutions to the shrinkage defects of lost foam casting nodular iron castings. One is to set
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Measures to solve the inclusion of nodular cast iron reducer housing in lost foam casting
The inclusion of reducer housing is related to the process characteristics of lost foam casting nodular cast iron, which can
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Causes of inclusions and shrinkage cavities in the reducer housing of lost foam casting nodular cast iron
The carbon content of ductile iron castings in lost foam casting is generally 3.5% ~ 3.8%, which is easy to
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Effect of nodulizer addition on Microstructure of nodular cast iron
When nodular cast iron is cast, the amount of nodularizing agent will directly affect the graphite morphology in cast iron,
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Elimination of inclusion and shrinkage cavity in lost foam casting nodular cast iron reducer housing
Lost foam casting nodular cast iron has the advantages of good surface quality, high dimensional accuracy and high process yield.
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Effect of graphite morphology and distribution on properties of nodular cast iron
By controlling the size and distribution of graphite diameter and the spherical regularity of graphite, the correlation degree with the