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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nodular cast iron
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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
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Compensation of thermocouple reference end of sector test block for nodular cast iron container of spent nuclear fuel
In the process of measurement, if the temperature of the reference end changes, even the temperature range is large, the
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Selection of protective sleeve for sector test block of nodular cast iron container for spent nuclear fuel
The upper limit of temperature measurement is as high as 1350 ° C. in the process of temperature measurement, the
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Principle and selection of thermocouple temperature measurement for sector test block of nodular cast iron container for spent nuclear fuel
The principle of thermocouple temperature measurement is thermoelectric effect. In the thermocouple loop, the high temperature end is called the
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16 channel temperature measurement system for nodular cast iron sector test block of spent nuclear fuel vessel
In order to verify the accuracy of the simulation results and prove that the simulation software can be used to
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Function and control of chemical composition of 100 ton nodular cast iron QT400-18
The matrix of qt400-18 is mainly ferrite. The chemical composition of qt400-18 is not specified in GB 1348-2013 ductile iron
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Experimental study on nodular cast iron sector test block for nuclear spent fuel container
1) The self-developed 16 channel temperature measuring device was used to successfully collect the temperature curves of 45 ° fan-shaped
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Solidification characteristics of nodular cast iron at hot spot of nuclear spent fuel container
According to the simulation results and the experimental study of 45 ° test block, the ductile iron spent fuel container
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Relationship between graphite morphology and properties of nodular cast iron sector test block for nuclear spent fuel container
The relationship between the number of graphite balls and the properties of 45 ° sector block is shown in Figure
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Microstructure of nodular cast iron sector test block for nuclear spent fuel container
Metallographic examination shall be carried out in accordance with GB / t9411. The graphite morphology and matrix structure at different
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Nodular cast iron sector test block for nuclear spent fuel container
The central section of the 45 ° fan-shaped test block (as shown in Fig. 4-15) is selected for the sampling
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Solidification curve of nodular cast iron sector test block for spent nuclear fuel vessel
The temperature measurement curves of different positions of 45 ° sector test block are shown in Fig. 1. The cooling
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Cooling characteristics of chill and metal mold for nodular cast iron sector test block of spent nuclear fuel vessel
The temperature curves of chill and metal mold are shown in Fig. 1 and Fig. 2 respectively. In about 18
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Production process and quality control of nodular cast iron sector test block for spent nuclear fuel vessel
Using high-purity pig iron as the main raw material, the high-temperature pure and high-quality molten iron meeting the composition requirements
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Microhardness optimization of nodular cast iron plunger pump block
The microhardness of lzqt600-3 ductile iron profile was tested under the optimal scheme of nitrocarburizing state in three parts. The
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Study on Microstructure and properties of nodular cast iron plunger pump block by nitrocarburizing process
Lzqt600-3 ductile iron profile with horizontal continuous casting was selected as the research object. The as cast microstructure and properties
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Friction factor curve and surface wear morphology of as cast and nitrocarburized samples at the edge of ductile iron profile
As cast and qsa313 The curve of the two samples first rises and then decreases, and fluctuates greatly. This is
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Microstructure and properties of nitrocarburizing strengthening layer on the surface of nodular cast iron plunger pump
The morphology and properties of Nitrocarburized layer of lzqt600-3 ductile iron profile at different positions were studied. The microstructure of
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Analysis of friction and wear properties of nodular cast iron plunger pump cylinder block by Nitrocarburizing
The significance of the comprehensive score data of friction and wear at the edge, 1 / 2R and center was
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Optimization of surface hardness of cylinder block of nodular cast iron plunger pump
The range and variance analysis of orthogonal experiment were used to analyze the experimental results. Through the comprehensive balance method,
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Friction and wear properties of nodular cast iron plunger pump block by Nitrocarburizing
The friction and wear properties of lzqt600-3 ductile iron profile at different positions were tested. Among them, the comprehensive score
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Performance test of nodular cast iron plunger pump cylinder
(1) Surface hardness test In order to make the depth of indentation less than the thickness of the layer and
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Microhardness analysis of nodular cast iron plunger pump block by Nitrocarburizing
The effective hardening depth of three parts of lzqt600-3 ductile iron profile was measured. According to the measured data, the