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
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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
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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
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Cost of molding materials for sand casting of steel castings
① Furan resin sand process The average amount of resin added is 0.9%, the amount of curing agent added accounts
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Causes of shrinkage defects in castings
The basic cause of concentrated shrinkage defects in castings is that the liquid shrinkage and solidification shrinkage of the alloy
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Comparative study on mechanical properties of gray cast iron with different alloying treatments
The multi-element alloy additive is designed according to the research results at home and abroad on the influence of Alloying
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Eliminating shrinkage cavity and porosity defects of steel castings
The traditional steel casting process design is analyzed through examples, and the shortcomings of the traditional process design are analyzed
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Development of steel casting simulation in China
Many foundry enterprises also use casting simulation analysis software to improve the process. Xiazezi and others from China shipbuilding industry
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Casting process simulation system
The traditional casting process mostly depends on a large number of empirical test data. Casting numerical simulation is an important
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Experimental material and preparation of gray cast iron for engine block
The composition and melting process of gray cast iron used in this experiment are jointly optimized and designed by our
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Common defects and prevention of wet molding clay sand steel castings
Compared with resin sand and sodium silicate sand cast steel process, wet mold clay sand cast steel process has the