Analysis of cold crack defects in large steel castings
1. Manifestations of cold crack defects Under the joint action of welding stress and other embrittlement factors, the bonding force […]
Scientific
Scientific
Scientific
Defect optimization and result analysis of sand casting coupling parts
Considering the easy realization degree and economic factors of each measure, and using measures 2, 3 and 6, the numerical
Scientific
Analysis of undercut defects of large steel castings
1. Manifestations of undercut defects Undercut is the result of electric arc scouring or melting the base metal near the
Scientific
Fatigue test of casting defects in cast steel joints
1. Fatigue load loading In order to effectively test the influence of multiple casting defects on the fatigue performance of
Scientific
Fatigue analysis of casting defects in cast steel joints
Through the finite element calculation of fatigue strength and safety factor, the changes of fatigue performance caused by different casting
Scientific
Structural modeling of tubular truss bridge with cast steel joints
In order to effectively analyze the fatigue performance of cast steel joints in tubular truss bridge, a tubular truss bridge
Scientific
Cause analysis and optimization measures of defects in sand casting coupling parts
1. Cause analysis After preliminary analysis, it is concluded that the main problem in the simulation results of tooling gating
Scientific
Analysis of blowhole defects in large steel castings
1. Expression form of pore defect During the welding process, the gas in the molten pool does not escape in
Scientific
Verification and effect of measures for casting defects of wheel hub steel castings
In order to verify the casting quality effect after process optimization, the trial production of 5 wheel hub steel castings
Scientific
Test of sand casting broken axle housing
In order to verify the feasibility of sand casting pouring process, the sample trial production of broken axle housing is
Scientific
Process and quality inspection of large steel castings
1. Casting process Fig. 1 is the casting process diagram of the main frame and hub of 6 MW wind
Scientific
Improvement of casting process for crossbeam of large steel casting rotary crusher
Through the calculation of niyama function value, the cniyama value at point 4 far away from the casting riser and
Scientific
Analysis of slag inclusion defects in large steel castings
1. Manifestation of slag inclusion defect Slag inclusion defects are formed by the slag remaining in the weld during welding.
Scientific
Optimization of casting defects of wheel hub steel castings
In order to ensure the quality of wheel hub steel castings, the process scheme is optimized, and 14 65 mm
Scientific
Analysis of simulation calculation results of casting defects of wheel hub steel castings
ProCAST software is used to simulate and calculate the scheme before process optimization of wheel hub steel casting. The judgment
Scientific
Comparative analysis of optimal design results of gating system in sand casting
The gating system of the optimized two pouring schemes after adding riser and cold iron is re meshed, sand casting
Scientific
Simulation analysis process of casting defects of wheel hub steel castings
1. Meshing of process modeling Using 3D modeling software creo2 0 carry out three-dimensional solid casting process modeling for castings.
Scientific
Cause analysis of casting defects in wheel hub steel castings
Wheel hub steel casting is one of the important structural parts of the traction system of a crawler vehicle. The
Scientific
Casting simulation calculation and analysis of beam of large steel casting rotary crusher
1. Modeling Steel casting material ZG275-485; The pouring temperature is between 1550 ~ 1560 ℃, and the ambient temperature is
Scientific
Analysis of casting process for crossbeam of large steel casting rotary crusher
Figure (a) shows the beam casting of the crusher (the right side of the casting is the cutting part). The
Scientific
Optimum design of sand casting chill
The sand cast chill is directly attached to the area where the riser should not be placed. In this way,
Scientific
Smelting and casting of bucket teeth of excavator
The bucket teeth are made of resin sand, the shovel head is made of non sun casting technology, and the
Scientific
Precision casting process scheme of driving wheel
1. Determination of welding and Pouring Scheme Whether the selection of welding and pouring scheme is reasonable or not is
Scientific
Simulation results and analysis of molten metal temperature field of sand casting axle housing
The numerical simulation of temperature field is the basis and core module of ProCAST software simulation. Through the simulation of
Scientific
Casting technology of gray cast iron for locking block of heavy lathe
1. Molding operation process In the original process (see Figure), the type is divided from one end, and the gray
Scientific
Prevention measures for casting defects of gray cast iron brake drum
By replacing the #3 riser with #5 riser, the height difference between riser and gray cast iron is increased from
Scientific
Heat treatment of bucket teeth of excavator
Heat treatment is mainly to change the as cast structure of bucket teeth and change the as cast martensite into
Scientific
Material of bucket teeth of excavator
Selection of bucket teeth material according to the service condition of bucket teeth, while summarizing the shortcomings of high manganese
Scientific
Improvement measures of gray cast iron casting process for locking block of heavy lathe
1. Improvement of molding operation process As shown in the figure, change the original parting surface from φ 260mm center
Scientific
Control measures of sand sticking on the surface of cylinder block castings
1. Defect description The cylinder block is a horizontal horizontal pouring process (as shown in Figure 1), with complex structure