Failure low magnification analysis of qt800-3 nodular cast iron crankshaft
The fracture morphology of the failed nodular cast iron crankshaft shows the fracture process and mechanism of the nodular cast […]
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nodular cast iron
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Failure of qt800-3 nodular cast iron crankshaft
In February 2021, an automobile company conducted a bench test and operated at full speed and full load for 65
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Analysis of tensile fracture mechanism of nodular cast iron
After normalizing, the tensile strength and elongation of nodular cast iron are improved at 930 ℃. In nodular cast iron,
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Effect of normalizing temperature on mechanical properties of nodular cast iron samples
The tensile specimens of room temperature nodular cast iron as cast and treated at different normalizing temperatures were tested at
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Effect of normalizing temperature on properties and microstructure of nodular cast iron
The samples as cast and normalized were observed by Kearns vh-5000 ultra depth of field optical metallographic microscope. The metallographic
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Effect of normalizing temperature on properties of nodular cast iron
Nodular cast iron is a spheroidal graphite cast iron obtained by spheroidization and inoculation. From the aspect of production, the
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Implementation of EPC process scheme for nodular cast iron vacuum rim casting
1. EPS foaming white mold EPS material has good cutting performance, fast NC machining speed and high precision. The mold
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Lost foam process design of nodular cast iron vacuum rim casting
Lost foam casting process is a casting process in which EPS white mold models similar to the size and shape
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Lost foam process of nodular cast iron vacuum rim casting
Vacuum rim is a safety component of the driving system of transportation machinery such as commercial vehicles and engineering vehicles.
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Sand casting of large nodular cast iron volute
Nodular cast iron has high mechanical properties, good sand casting performance, good fluidity, no hot crack tendency, shrinkage and high
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Implementation and effect verification of High Toughness Nodular Cast iron cylinder head
Production preparation shall be carried out according to the established scheme. Since the injector hole core is made of hot
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Study on casting technology of nodular cast iron sand suction pump body
The sand suction pump casting is mainly used for river dredging, dredging and Embankment Consolidation, and the delivery medium can
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Graphite morphology and distribution of nodular cast iron
By controlling the size and distribution of graphite diameter and the spherical regularity of graphite, the correlation degree with the
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Analysis of graphite morphology and distribution and mechanical properties of nodular cast iron
Figure 1 (a) and figure 1 (b) show the hardness and strength changes of three groups of different samples respectively.
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Microstructure analysis of graphite morphology and distribution in nodular cast iron
Fig. 1 shows the microstructure SEM of three groups of ductile iron samples. It can be seen from the figure
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Research Progress on fatigue properties of nodular cast iron
Nodular cast iron obtains spherical graphite through inoculation and spheroidization. Because the graphite is spherical, it is not easy to
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Molding technology of large nodular cast iron roll
Furan resin self hardening sand is used for molding and core making, and alcohol based zircon coating is used to
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Inspection of nodular cast iron end cover castings after welding
After the above WPS preparation, WPQR welding procedure qualification test shall be carried out to determine the WPS process reliability.
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Future planning of ZHY casting in gray cast iron and nodular cast iron
From 2015 to 2019, the wind power market was constantly changing and experienced two rush loading peaks of wind power.
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Comprehensive failure analysis of QT800-3 nodular cast iron crankshaft
Based on all the previous analysis, the fracture process of nodular cast iron crankshaft is as follows: in the induction
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ZHY casting gray cast iron and nodular cast iron wind power castings
Casting refers to pouring molten metal into the mold, cooling and forming to form a casting that meets the relevant
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Failure analysis of QT800-3 nodular cast iron crankshaft
As shown in Figure 1, cut the metallographic sample close to the crack source, and then conduct rough grinding, fine
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Effect of graphite morphology and distribution on properties of nodular cast iron
In recent years, with the development of mechanical equipment towards portability, low energy consumption and high efficiency, new requirements are
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Analysis and prevention measures of blowhole defect in nodular cast iron roller
1. Defect analysis (1) The inner cavity of the cylinder body is a long strip-shaped sand core, and the gas
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Analysis and preventive measures of sand hole and slag hole defect in nodular cast iron roller
1. Defect analysis (1) The slag cleaning treatment of molten iron is not complete; (2) The results show that the
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Analysis and preventive measures of shrinkage hole defect of nodular cast iron roller shaft head
1. Defect analysis (1) There is a great difference in the wall thickness between the cylinder body and the shaft
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Analysis and preventive measures of casting deformation defect of nodular cast iron roller
1. Defect analysis (1) The stiffness of the base frame of the model is not enough, and the model is
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Analysis and prevention of broken teeth of nodular cast iron gears
The casting is molded in a box of 2 pieces, with 550 kg spheroidizing treatment package, 10 boxes and 3
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Effect of silicon solution strengthening on properties of nodular cast iron
1) The strength and elongation properties of y-block hot metal casting were compared. It can be seen that with the
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Analysis and preventive measures of zonal shrinkage defect of nodular cast iron cylinder
1. Defect analysis (1) The rib plate of the cylinder body forms a grid shaped geometric hot spot with the