Figure 1 shows the metallographic structure of the steel tested after tempering at different temperatures. It can be seen from […]
The casting process test of diesel engine block was carried out by using the process determined by analysis. The production
Dredger is a common dredger, working in sand and silt. It is generally used to excavate various kinds of silt,
The exhaust system of large castings mainly considers the exhaust of mold cavity and sand core. It is difficult to
Combined with the production conditions and experience, the casting shrinkage is 1% in length direction, 0.8% in height direction and
In order to ensure that the experiment has accurate guidance for the inlet cylinder casting, the stepped shaped test block
The engine body is an 8-cylinder in-line structure. Its appearance is shown in Fig. 1 and its sectional view is
As the core part of diesel engine, the engine block carries all parts of the engine. Its working environment is
The research of gating system parameters design is to analyze the statistical law of pouring process parameters, mainly including flow
The technological principle of pouring system for cylinder body iron castings is: conveying liquid metal to the inside of the
In the production practice, the shrinkage modulus method is mainly used to design the process riser to complete the feeding
With the rapid development of social economy and the vigorous development of China’s shipbuilding, locomotive, construction machinery and other industries,
The wall thickness of ductile iron piston varies greatly, the thinnest part is 7.5 mm, the thickest part is 23
Based on the actual casting cases of cylinder block castings collected from domestic foundry enterprises, combined with the existing achievements
Solid liquid segregation is one of the main defects in thick wall products. Under the condition of good feeding condition
The influence of process parameters on the shrinkage cavity and porosity in the semi-solid die casting process was studied by
The simulation results of filling temperature field are shown in Figure 1. It can be seen that the filling liquid
The flow rate W is defined as the metal weight passing through the cross-sectional area of the gating system within
With the application of ductile iron in the global industrial field more and more widely, the quality requirements of ductile
Six groups of samples were taken when analyzing surface carburization, and the location of the test point was changed to
In this test, 6 test pieces were poured in the same ladle of molten steel. The chemical composition of molten
In order to study the carburization defects of steel casting for bridge support, four sampling locations are selected, namely, near
Using the process plan after the second optimization, the small batch production verification of steel and steel bearing was carried
In order to study the impact resistance of steel castings at different temperatures, three temperature detection conditions, namely normal temperature,
It can be seen from Fig. 1 that when the pouring temperature changes from high to low, the safe height
The safety height of riser feeding is taken as the evaluation index in the orthogonal test. The measurement method of
According to the test results of high temperature wear resistance and high temperature oxidation resistance of the new superalloy used
Figure 1 shows the average grain size curve of Superalloy samples prepared at different pouring temperatures. It can be seen
Figure 1 is a plot of the mass gain per unit area of a high temperature alloy sample prepared at
Fig. 1 is the curve of mass added value per unit area of Superalloy samples prepared at different pouring temperatures.
