Study on Carburizing defects of lost foam casting steel castings
The lost foam casting method is flexible and convenient in modeling and pouring, especially for products with complex structure. lost […]
Scientific
steel casting
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Casting defect inspection of medium and large steel castings
According to the thinking method of formulating the inspection standard of JCSS hull steel castings in Japan, medium and large
Scientific
Characteristics of cracks defects in medium and large steel castings
Hot crack: the crack is an irregular curve, the inner surface is rough and black brown iron oxide. Cold crack:
Scientific
Analysis of insufficient pouring defects of investment casting steel castings
The support size of a thin-walled steel casting is 400 mm × 310 mm × 270 mm, minimum wall thickness
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Insufficient pouring defects of investment casting steel
In recent years, with the application of advanced technologies such as high-performance (steel, non-ferrous alloy, etc.) materials, CAE analysis and
Scientific
Porosity casting defects in lost foam casting of steel castings
According to the causes, the pores produced by lost foam casting steel castings are divided into the following four categories.
Scientific
Defects in lost foam casting reverse spray casting of steel castings
During the pouring process, due to the excessive amount of gas released by the thermal decomposition of the gas mold
Scientific
Negative pressure cutting casting defects of steel castings in lost foam casting
Main reasons: when the sand box is under vacuum, the external air is sucked into the mold due to the
Scientific
Carburizing casting defects of steel castings in Lost Foam Casting
Carburizing is one of the common casting defects in the lost foam casting process of steel castings. The carburizing casting
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Lost foam casting of steel castings
Lost Foam Casting (EPC), also known as negative pressure full mold casting, has developed to a considerable scale since it
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Effects of casting defects and structural dimensions of heat resistant cast steel liner on its properties
1. internal stress is generated during lining plate casting, resulting in cracks in lining plate; 2. the fracture of the
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Improvement measures of heat resistant cast steel lining plate
1. To reduce and eliminate the stress concentration of the lining plate, the specific methods are as follows: during casting,
Scientific
Effect of chemical composition of heat resistant cast steel liner on its properties
The chemical composition of ZG35Cr24Ni7SiN material of heat-resistant steel casting is as follows: Brand C Mn Si Cr Ni Mo
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Steam turbine cylinder steel castings
The split flange of steam turbine cylinder block steel casting is the upper and lower half of the cylinder block.
Scientific
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
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Defects of heat resistant cast steel lining plate
The heat-resistant cast steel lining plate (ZG35Cr24Ni7SiN) is easy to crack, melt or even fracture during use, and has a
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Characteristics and application of heat resistant cast steel lining plate
Heat resistant cast steel, model ZG35Cr24Ni7SiN, has good oxidation resistance, high strength, good toughness, good wear resistance, heat resistance, corrosion
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
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
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High strength gear ring steel casting
Low alloy high strength steel is widely used in mechanical engineering, electric power, pressure vessel, automobile industry, mining machinery, oil
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Large steel castings for generators
With the continuous development of wind power generation, the manufacturing requirements of wind power equipment are also increasing. Especially in
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Self made enterprise standard of cast steel large gear to reduce defects
The root cause of exposed defects after tooth milling is that the internal defects after rough machining are not treated
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.
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Analysis of common welding defects of large steel castings
Steel casting products are the most basic and important components of all kinds of equipment in modern equipment manufacturing industry.
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
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Casting and pouring experiment of cross beam of large steel casting rotary crusher
The pouring test was carried out on the improved process of steel castings (using two heating risers for liquid metal
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