Research status of gray cast iron at home and abroad
In order to improve the properties of gray cast iron and deeply develop the application of gray cast iron, many […]
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Effect of loading frequency on tensile compressive fatigue strength of gray cast iron
Results of tension compression fatigue test of low frequency gray cast iron Among the 8 samples of low-alloy HT250 low-frequency
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Properties of gray cast iron
Casting performance: it refers to some technological properties of whether the metal or alloy is suitable for casting, mainly including
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Tensile fracture morphology of three grades of gray cast iron
The low magnification morphology of tensile fracture of three grades of gray cast iron is shown in Figure 1. It
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Metallographic structure of gray cast iron
Gray cast iron usually refers to the cast iron with gray section and the carbon mainly exists in the form
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Tensile test results of gray cast iron
The tensile strength of ordinary HT250 at room temperature is slightly lower than the strength calibrated by its brand, which
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Tensile compressive fatigue properties of high strength gray cast iron
Gray cast iron refers to the cast iron with flake graphite. The main components are iron, carbon, silicon, manganese, sulfur
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Eutectic morphology of high strength gray cast iron
The eutectic morphology of three grades of gray cast iron samples is shown in the figure. Eutectic clusters in gray
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Matrix structure of high strength gray cast iron
The matrix structure of three grades of gray cast iron samples is shown in the figure. It can be seen
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Inoculation treatment of grey cast iron
1. Characteristics of inoculation treatment So far, there is no consensus on the action mechanism of inoculation treatment at home
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Graphite morphology of high strength gray cast iron
The figure shows the graphite morphology and distribution of three grades of gray cast iron samples. It can be seen
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Properties and characteristics of gray cast iron
1. Mechanical properties (1) Tensile strength: the tensile strength of gray cast iron is generally 100 ~ 350 MPa, which
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Lifting Faraday compression fatigue test of gray cast iron
The tension compression fatigue tests of three grades of gray cast iron are carried out on plg-100 high frequency fatigue
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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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Melting and casting production control of vermicular graphite cast iron brake disc
1. Melting process of alloy vermicular graphite cast iron for brake disc (1) Raw materials and chemical composition Pig iron,
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Production of gray iron castings
Gray cast iron characterized by flake graphite has certain strength, hardness, elastic modulus, shock absorption, wear resistance and thermal conductivity,
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Low frequency tension compression fatigue test of gray cast iron
The low-frequency tension compression fatigue test of gray cast iron adopts MTS810 axial tension compression fatigue test machine. It uses
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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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Effect of pouring speed on black spot defect of diesel engine cast iron cylinder liner
In the solidification process of liquid metal in centrifugal casting, too slow pouring speed will promote the formation of layered
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Effect of microstructure hardness on black spot defect of diesel engine cast iron cylinder liner
Generally, the hardness of cylinder liner in the qualified layer is hb225 ~ HB240, and the overall hardness difference of
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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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Tension compression fatigue specimen of gray cast iron
The tension compression fatigue test of gray cast iron mainly studies the effects of loading frequency and surface roughness on
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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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Prevention of shrinkage porosity of nodular iron castings
1. Chemical composition control The chemical composition of nodular cast iron for wind turbine shall be strictly controlled, especially C,
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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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Tensile test on fatigue properties of gray cast iron
The test materials are three grades of gray cast iron, namely ordinary HT250, low alloy HT250 and HT300, in which
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Technological measures for reducing casting porosity defects in green sand casting of heavy vehicle cylinder head
1. Improvement of gating system 1.1 The intermediate injection water inlet is improved to the top injection water inlet At
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Single point fatigue test method for metal casting materials
Single point fatigue test is applicable to the service of metal components under rotating bending load at room temperature, high
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Elimination of casting porosity in stainless steel butterfly valve body and control of melting and pouring temperature
After SAF2507 is smelted to 1 670 ~ 1 700 ℃, turn off the power supply and let it stand
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Heat treatment process of bainite Martian multiphase wear resistant cast steel for lining plate of cone crusher
The research content comes from the school enterprise cooperation projects “research and development of new cone crusher liner” and “research