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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Matrix structure of gray cast iron
By comparing the matrix structure of low carbon equivalent gray cast iron treated with different rare earth additions, it can
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Improvement of casting blow hole defect of motor shell
1. Adjust sand core parameters Through the analysis of the formation mechanism of invasive blow hole defects, it can be
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Field wear test of tractor track shoes
In recent years, the track shoe research group has conducted 21 joint loading tests in Guangdong (paddy field), Northeast China
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Effects of different inoculants on cutting properties of high strength gray cast iron
In the process of gray cast iron cutting experiment, the measurement cycle is very short, the cutting length of the
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Primary surface inspection for mass production of railway steel castings
Before the mass-produced coupler products are finally put into storage, they need to go through one preliminary surface inspection, two
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Countermeasures for sand casting defects of steel castings
According to the above casting defect analysis and countermeasures, a new process diagram is finally formed, as shown in Figure
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Analysis of production defects in sand casting of steel castings
(1) The section diagram corresponding to the casting defect I is shown in Figure 1. The casting defect I occurs
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Production verification of sand casting of steel castings
1.Mold making and trial production According to the designed process drawing and tooling drawing, the die quotation is carried out.
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Test of mechanical properties of gray cast iron
1.Sample preparation The tensile strength of low carbon equivalent gray cast iron was measured by hydraulic universal tensile testing machine.
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Comparison of graphite morphology of gray cast iron
Comparing the graphite morphology of low carbon equivalent gray cast iron treated with different rare earth addition, it can be
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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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Tensile strength of gray cast iron
In the experiment, the molten iron of the same furnace is used to prepare gray cast iron according to the
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Effect of different inoculants on Microstructure of high strength gray cast iron
The strength of gray cast iron depends on the type of graphite and matrix structure in its microstructure. When the
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Flaw detection in casting workshop of mass production of railway steel castings
The flaw detection in the casting workshop mainly detects the superficial cracks of steel castings after pre normalizing and air
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Design of gating system in sand casting
Draw the process drawing of sand casting according to the processing quantity and riser calculated before. Refer to attached Fig.
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Casting property test of gray cast iron
1.Liquidity test As shown in Figure 1, the experimental fluidity test adopts the method of single helix wet sample. The
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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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Effect of different inoculants on mechanical properties of high strength gray cast iron samples
Four kinds of inoculants were selected in the experiment, which were 75sife, SRSI, basi, sisR (80%) and 75fesi (20%) composite
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Modification of gray cast iron
The modification effect of gray cast iron is affected by many factors, such as type, composition, size and oxidation degree
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Burden calculation of gray cast iron
50KW medium frequency induction furnace was used for smelting in the test, with 25 kg charge per group.Proportioning principle: proportioning
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Influence of impurity element titanium on cutting performance of gray cast iron
The comparative experiment of cutting performance of gray cast iron was carried out on CA6140 lathe, and the nsdn-45 °
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Melting of rare earth gray cast iron
1.Charge The quality of furnace charge mainly depends on the content of trace elements in raw materials. The trace elements
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Role of rare earth in gray cast iron
1.Interaction between rare earth and sulfur Sulfur can cause “hot brittleness” of cast iron during smelting of gray cast iron
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Effect of riser in sand casting
The effect of checking the riser mainly includes the check of feeding range and feeding weight. One method to calculate
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Technology of sand casting bracket steel castings
1. Problem description Sand casting bracket steel casting, steel casting No. 20e-70-k1432. The steel casting is a new external product
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Influence of impurity element titanium on Microstructure of gray cast iron
The microstructure of metallographic samples of gray cast iron after polishing and corrosion was analyzed. The graphite morphology is shown
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Simulation of shrinkage cavity formation in cylindrical steel castings
This steel casting is also an actual pouring example to test the simulation accuracy of the software. The shape of
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Sand casting process design
(1) Modulus calculation To calculate and design the riser, first analyze the product structure and calculate the modulus of thick