Development stage of numerical simulation technology of casting process
The level of numerical simulation has reached a high level in developed countries, especially in the United States and Europe […]
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Avoid shrinkage cavity and porosity defects of steel castings
Many parts of construction machinery such as bulldozers and excavators are cast steel castings, which often have shrinkage defects. Light
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Shrinkage cavity and porosity defect of steel castings
The defects of shrinkage cavity and porosity are briefly introduced. Combined with the theories of filling capacity of liquid metal,
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Effect of alloying elements on Microstructure and properties of gray cast iron
The effects of alloy elements Cu, Cr and multi alloy additives on the microstructure and properties of gray cast iron
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Development of casting theory in China
At present, the casting theory is relatively perfect, which can play a certain guiding role in the juice setting process
Scientific
Casting defects of coupler body in trial production of railway steel castings
The main casting defects of coupler body include crack, air hole, sand inclusion and mechanical sand sticking. The main parts
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Control of shrinkage cavity and porosity defects of steel castings
Different steel casting production processes determine different production processes, but they can be basically divided into process design, model making,
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Technology of sand casting of steel castings for boom
1.Problem description Sand casting boom steel casting, steel casting No. 322232642, is an accessory of atlas process engineering machinery rock
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Quality inspection items of railway steel castings
Inspection and test are important means to ensure the quality of steel castings and the process quality of steel castings.
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Critical wall thickness and inner wall thickness of steel castings
When designing steel castings, the sensitivity of the mechanical properties of cast alloys to the wall thickness of steel castings
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Analysis of casting defects of steel castings
The steel castings were trial produced in two batches, and the first time was qualified, and the second time there
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Description of casting defects of steel castings
In order to verify the feasibility and universality of the proposed process design improvement method, three typical steel castings produced
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Trial production technology of railway steel castings
The production of coupler is divided into two work areas: sand casting and finishing assembly. The main processes of sand
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Shrinkage defects of castings of different materials
The shrinkage rates of several common iron carbon alloys are shown in the table. It can be seen from the
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Improvement of sand casting defects of steel castings
Through the production verification of product k141 and the implementation of lack of vision countermeasures, it can be seen that
Scientific
Comparative study on Microstructure of gray cast iron with different alloying treatments
The graphite morphology of the two gray cast iron samples is shown in Figure 1. It can be seen from
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Development status of casting technology in China
Compared with foreign countries, the research on numerical modeling of casting solidification in China started late, but made rapid progress.
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Improvement of shrinkage cavity and porosity defects of steel castings
The traditional process tooling design is carried out for the bracket steel castings of a certain construction machinery. According to
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Development of Foundry Technology
On the whole, foreign developed countries have advanced foundry technology, good product quality, high production efficiency and less environmental pollution.
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Concept and design principle of riser in sand casting
The riser is a structure for storing molten metal in the mold, which is used to compensate for the possible
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Setting of linear shrinkage of sand castings
After any liquid metal is injected into the mold, it goes through three interrelated shrinkage stages from pouring temperature to
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Comparison of different standards on the grade of casting defects
The acceptance specifications of steel castings have realized that the outer surface of steel castings is more important, because the
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Production and product quality inspection of railway steel castings
The ultimate purpose of railway steel casting production is to obtain high-quality parts that meet the requirements of product quality
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Turning force in turning process of gray cast iron material for engine cylinder block
In recent years, many studies have been carried out on the evaluation of cutting performance of materials by cutting force
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Minimum wall thickness of steel castings
Thin wall structure accounts for more than 65%, the wall thickness of thin wall is 14-15mm, and the wall thickness
Scientific
Ultrasonic flaw detection of cast steel joints
After visual and magnetic particle flaw detection of cast steel joints, ultrasonic flaw detection shall be further carried out. Ultrasonic
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Development status of casting technology
The basis of casting process design is the casting forming theory. The casting forming theory studies the mechanical, physical and
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Reduce casting defects
Casting is a process for producing products with liquid metal. The basic technology in mechanical industry includes manufacturing, welding, forging
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Foundry design of bracket products
The foundry design of bracket products takes a bracket product of construction machinery as an example, and carries out the
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Pretreatment of sand casting process simulation
1. Model transformation and mesh generation The coupler body and sand casting process are modeled by proe and exported by