Production of steel castings for motor shell by sand casting
In view of the problems and deficiencies existing in the existing furan resin sand process, motor shell sand mold casting […]
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Experimental method and process of gray cast iron for engine cylinder block
The mechanical properties and machinability of gray cast iron samples for engine cylinder block were tested, and the microstructure of
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Optimization design of gating system in sand casting
① Analysis on the original pouring system of motor shell See Fig. 1 for the original pouring system of motor
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Wet molding clay sand technology of railway steel castings in China
There are relatively few enterprises and scientific research institutions engaged in the production and research of wet clay sand railway
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Simulation of sand casting process
Sand casting process simulation technology introduction in the process of national economic development, sand casting industry, as an important part
Scientific
Main performance indexes of sand casting wet mold clay sand
Before the proportion of molding sand is proposed, the basic range of molding sand properties should be determined according to
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Selection principle of main raw materials of wet molding clay sand and relative steel castings
The green molding clay sand used in railway steel castings is mainly made of raw sand, bentonite, starch additives and
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Gray cast iron for engine block
Cast iron is the most widely used basic material in metal materials and plays an important role in casting alloys.
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Effect of different riser height on casting defect distribution of steel castings
The orthogonal experiment will be designed, the riser height is set as the independent variable, and other process parameters remain
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Evaluation of casting defect characteristics of cast steel joints
(1) Ultrasonic flaw detection of cast steel joints can not cover all flaw detection areas, nor can it completely and
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Production of railway steel castings with wet molding clay sand
“Energy conservation” and “environmental protection” are important issues facing China in development, and realizing sustainable development is our basic national
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Railway steel castings
Railway development is closely related to people’s life and national development. With the sixth speed increase of railway, railway freight
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Casting sand inclusion defect
Casting sand inclusion defects are directly related to production process, mold, sand mixing, molding, core making, lower core box, pouring
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Numerical simulation and process optimization of sand mold casting of mud pump body
Taking the sand mold casting of the mud pump body as the research object, firstly, the gating system, feeding system
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Analysis of solidification process of mud pump body in sand mold casting
Figure 1 shows the simulation results of temperature field at each time during solidification of mud pump body in sand
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Main methods and processes of NDT for cast steel joints
Traditional nondestructive testing methods include ultrasonic testing, acoustic emission testing, magnetic particle testing and radiographic testing. Magnetic particle flaw detection
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Quality evaluation standard of cast steel joints
Discussion on quality evaluation standard of cast steel joints: (1) For the flaw detection of castings, special attention can be
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Condition of sand castings after rough machining
The defect distribution of sand castings after processing is shown in Figure 1, figure 2 and figure 3. The sand
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Microstructure and properties of cast iron alloy by vibration lost foam casting
Aiming at the problems of coarse structure and low mechanical properties of cast iron alloy lost foam casting, vibration lost
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Characteristics of casting defects of cast steel joints
(1) Through the non-destructive testing of 24 cast steel joints, it is found that the distribution of casting defects seems
Scientific
Finite element analysis of cast steel joints with crack defects
According to the flaw detection results, there are many casting defects in the cast steel joints, and many casting defects
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Prediction of shrinkage cavity and porosity defects in steel castings
The shrinkage rate prediction module is used to predict the distribution of shrinkage defects. When the simulation results show that
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Sand inclusion defect in sand casting
In sand casting production, it is often found that castings with sand inclusion, either inside or on the surface, are
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Sand casting process design of shell casting
Process design is very important to the quality of sand casting. Even if other conditions are met, if the process
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Finite element analysis of defect free cast steel joints
Due to the large stiffness of the main pipe of the cast steel joint, one end of the main pipe
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Optimization of sand casting process for mud pump body
1. Optimization of sand casting gating system for mud pump body According to the simulation results of sand casting process,
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Optimization of sand mold casting process for mud pump body
By analyzing the simulation results, the rationality of sand mold casting process scheme is judged, and the optimized process scheme
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Magnetic particle inspection of sand castings
After the sand casting is cleaned, the fluorescent wet magnetic particle flaw detection is carried out. The total number of
Scientific
Comparison of casting defect grade evaluation by different standards
The ultrasonic testing standard for carbon steel, low alloy steel and martensitic stainless steel castings (astm-609 / 609m), ultrasonic testing
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Influence of different casting systems on casting defect distribution of steel castings
According to the relative position of the internal sprue on the steel casting, the casting system can generally be divided