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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Centrifugal casting isothermally quenched ductile iron bushing test process and method
1. Test materials Figure 1 shows the wear of excavator bushing. It can be found that the bushing has been
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Technical breakthrough in the production of China large steel castings
Large steel castings are mostly the main bearing parts and supports in major technical equipment. The castings have huge size,
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Determination of pouring position of zg310 large casting seat parts
The pouring position of castings refers to the position of large castings when pouring in the mold. Because the seat
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Process improvement of base plate castings for large machine tools
According to the types of base plate defects, corresponding measures are taken in the aspects of gating system, riser, composition
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Application of squeeze casting in commercial automobile engine mounting bracket
The 110 engine support of a commercial vehicle is shown in Figure 1. It has a long life cycle and
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Application of squeeze casting technology in automobile control arm
Figure 1 shows the aluminum alloy control arm. The material is A356.2 alloy, and the maximum overall dimension is 320mm
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Application of squeeze casting technology in automobile airbag support arm
The airbag support arm is the core support part of the vehicle wheel drive axle, as shown in Figure 1.
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Application of squeeze casting technology in automobile steering knuckle
The steering knuckle is a chassis safety part, which has the functions of connection, bearing and steering, and the service
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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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Effect of compounds on tensile compressive fatigue properties of gray cast iron
General materials contain some alloy compound phases. The existence of alloy compound phases enhances the matrix strength, hinders the crack
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Effect of casting holes on tensile compressive fatigue properties of gray cast iron
For cast iron, there will always be some unavoidable casting defects, such as shrinkage cavity and porosity. Casting defects have
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Effect of inoculation treatment with different inoculants on mechanical properties of gray cast iron
The table shows the effects of the same alloying and different inoculants on the mechanical properties of gray cast iron.
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Effect of graphite on initiation and development of tension compression fatigue crack in gray cast iron
The deformation of any material under external load will be affected by its own microstructure and properties and external environmental
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Effect of graphite on tensile and tension compression fatigue properties of gray cast iron
For gray cast iron, its mechanical properties mainly depend on the matrix structure and flake graphite in it. The shape
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Instantaneous fracture zone of fatigue crack in gray cast iron
The instantaneous fracture zone of fatigue crack is the area where the material is unstable and suddenly fractured. Due to
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Fatigue crack growth zone of gray cast iron
The fatigue crack growth region is the region of stable development after fatigue crack nucleation and initiation. Fatigue bands generally
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Origin region of fatigue crack in gray cast iron
The fatigue crack origin region is the region where the fatigue crack nucleates and initiates. The fatigue crack first nucleates
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Tension compression fatigue test results of three grades of gray cast iron
(1) Fatigue test of ordinary HT250 lifting Faraday compression The lifting diagram of tension compression fatigue limit of ordinary HT250
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Tension compression fatigue fracture morphology of gray cast iron with different surface roughness
The tension compression fatigue fracture morphology of low alloy HT250 with different surface roughness is shown in the figure. Figure
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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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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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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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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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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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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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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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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