Application of rare earth in cast steel
The history of the application of rare earth in the field of steel casting can be traced back to the […]
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cast steel
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Effect of rare earth on as cast microstructure of cast steel
Many researchers have found that rare earths have the effect of refining grains. The reason is that on the one
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Modification of inclusions in cast steel by rare earth
The inclusions in cast steel have an important impact on the properties of cast steel products. Domestic and foreign scientific
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Purification effect of rare earth on molten steel of cast steel
(1) Deep deoxidation and desulfurization: rare earth is easy to react with oxygen and sulfur elements in the molten steel
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Application of rare earth in cast steel
Rare earth (RE) is the general name of 17 metal elements including lanthanide, scandium and yttrium in the periodic table
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Fitting results of casting defect distribution of cast steel joints
There are many tests for statistical distribution, such as KS test, chi square test, etc. from the perspective of graphics,
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Casting simulation and casting defect analysis of cast steel joints
The casting simulation of four branch cast steel joints is carried out by using ProCAST casting simulation software to explore
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Statistics of casting defect test results of cast steel joints
As shown in the table, the frequency statistics of casting defect size can be obtained by summarizing the sizes of
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Damage detection and casting defect analysis of typical four branch cast steel joints
Casting defect data of 144 large and small sections of cast steel joints, including 74 sections with casting defects, accounting
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Damage detection and casting defect statistics of typical four branch cast steel joints
As shown in Figure 1, because the shape of casting defects in the node is irregular, the maximum value of
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NDT and casting defects of typical four branch cast steel joints
The test piece shall be cut in the area where the casting defects are concentrated as far as possible in
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Description of casting defects of cast steel joints
The description and general impression of casting defects of various cast steel joints are as follows: (1) The four cast
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Characteristics of casting defects in cast steel joint samples
Some typical samples were selected to analyze the distribution characteristics of casting defects. (1) ZG-03 is a multi pipe intersection
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Magnetic particle testing and ultrasonic testing of cast steel joints
1.Magnetic particle inspection The statistical results of magnetic particle flaw detection are given in the table. Four crack defects are
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NDT for casting defects of cast steel joints
According to the summary, a total of 50 casting defects were found in 24 cast steel joints, and the average
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Ultrasonic flaw detection of cast steel joints
After visual and magnetic particle flaw detection of cast steel joints, ultrasonic flaw detection shall be further carried out. Ultrasonic
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Visual inspection for cast steel joints
Visual inspection is not only the first step in the delivery inspection of cast steel joints, but also an essential
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Evaluation of casting defect characteristics of cast steel joints
(1) Ultrasonic flaw detection of cast steel joints can not cover all flaw detection areas, nor can it completely and
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Main methods and processes of NDT for cast steel joints
Traditional nondestructive testing methods include ultrasonic testing, acoustic emission testing, magnetic particle testing and radiographic testing. Magnetic particle flaw detection
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Quality evaluation standard of cast steel joints
Discussion on quality evaluation standard of cast steel joints: (1) For the flaw detection of castings, special attention can be
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Characteristics of casting defects of cast steel joints
(1) Through the non-destructive testing of 24 cast steel joints, it is found that the distribution of casting defects seems
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Finite element analysis of cast steel joints with crack defects
According to the flaw detection results, there are many casting defects in the cast steel joints, and many casting defects
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Finite element analysis of defect free cast steel joints
Due to the large stiffness of the main pipe of the cast steel joint, one end of the main pipe
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Defect prediction and experimental verification of cast steel joints
The flow of liquid metal and the change of casting system will affect the defects of castings. However, due to
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Filling and solidification process of cast steel joints
The formation of cast steel joints has experienced two stages: mold filling and solidification. Macroscopically, it mainly involves three physical
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Nondestructive testing of multiple cast steel joints
Cast steel components (cast steel joints, cast steel bearings, etc.) are cast as a whole in the factory, with large
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Casting process of cast steel joint
The casting methods mainly include sand mold gravity casting, lost foam casting, pressure casting, centrifugal casting, etc. the cast steel
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Comparison of damage NDT results of typical four branch cast steel joints
In order to verify the nondestructive ultrasonic flaw detection test results of typical four branch cast steel joints, take four
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Casting forming theory of cast steel joints
The forming process of cast steel joint mainly includes the filling process and solidification process of cast steel joint. The
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Slice test of typical four branch cast steel joints
1. Test purpose (1) The random characteristics of typical casting defects distribution of cast steel joints are analyzed; (2) Verify