Tensile test and impact test of nodular cast iron
The tensile test shall be carried out in accordance with gb/t 228-2002 tensile test method for metallic materials at room […]
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Inspection contents of casting coating
In order to achieve the ideal performance, the coating should have a series of properties, mainly including physical and chemical
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Development of lost foam casting in China
China is a country that began to research and apply lost foam casting after the United States, Germany, Britain and
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Low pressure sand casting of aluminum alloy complex thin wall parts
1. Selection of casting method The wall thickness of the casting is thin, the flow resistance of the molten metal
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QT500-14, QT600-10 High Silicon Ductile Iron
With the development of science and technology and the continuous innovation of cast iron production technology, the ductile iron grades
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Generation of quenching cracks in heat treatment
Connecting rod is an important part of diesel engine. The surface quality, such as quenching cracks, directly causes the scrapping
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Analysis of impact properties of 30CrNiMo steel castings
According to the results of chemical elements, the chemical composition of steel castings meets the requirements of ZG30CrNiMo steel in
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Metallographic structure change of melting layer of gray cast iron after laser shock
Fig. 1 corresponds to the cross-sectional morphology of the surface of gray cast iron melting layer after continuous impact of
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Experimental equipment for composite squeeze casting of large aluminum wheel hub
1. Large hydraulic press Composite squeeze casting is a new squeeze casting method proposed in. At present, there is no
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Key technical problems of compound squeeze casting equipment
Because the equipment is the core platform for implementing the process, and the composite squeeze casting method is quite different
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Application case of three-dimensional model for riser process of steel castings
Taking the profile bar on a track powered rolling car as an example, the material of the steel casting is
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Lost foam casting high chromium cast iron carbon steel bimetallic wear-resistant liner
The dual liquid lost foam casting process is proposed to produce bimetallic liner. Placing the wear-resistant cast iron at the
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China non quenched and tempered steel
Compared with similar foreign materials, the gap between China’s non quenched and tempered steel is as follows: 1) Poor quality
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Additive manufacturing process
Additive manufacturing technology includes a number of modern processes. With the continuous development of various technologies, the application effect of
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Cooling curve of flake graphite cast iron and nodular cast iron
The cooling curves of typical flake graphite cast iron and nodular cast iron are shown in the figure. It can
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Effect of vibration on hardness of white cast iron
The figure shows the hardness change of white cast iron in lost foam casting with and without vibration. It can
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Test of nodular cast iron
As cast crankshaft castings with nodular cast iron trademark of QT800-2 are selected as the samples. After testing, the nodularity
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Classification of casting coatings
(1) According to different carrier solutions, it can be divided into: water-based coatings and alcohol based organic solvent casting coatings;
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Development of lost foam casting abroad after 1980s
Compared with the United States, the lost foam casting technology in other countries developed late, but the development speed is
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Sand mold low pressure casting of aluminum alloy complex thin wall parts
Aluminum alloy castings are widely used in railway, military, aerospace, automotive, medical and other fields because of their good comprehensive
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Model establishment of compacted vermicular cast iron pressure plate for automobile
Vermicular cast iron automobile clutch pressure plate casting is a small casting, its overall structure is similar to a disc,
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Vermicular graphite cast iron pressure plate castings for automobiles
Automobile clutch pressure plate is an important part of clutch, which is of great significance to automobile driving safety. The
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Physical and chemical inspection of 30CrNiMo steel castings
1. Fractograph The fracture morphology of impact sample was observed by Zeiss evo15 scanning electron microscope. The fracture morphology of
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Surface residual stress induced by laser shock in gray cast iron
Due to the temperature gradient generated in the process of laser melting of gray cast iron and the transformation of
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Process flow of composite squeeze casting
According to the definition of composite squeeze casting, the process flow of the composite squeeze casting forming method is as
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Quenched and tempered steel connecting rod and non quenched and tempered steel connecting rod
It can be seen that the main differences between the quenched and tempered steel connecting rod and the non quenched
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Effect of sample wall thickness on Microstructure of white cast iron
The picture shows the microstructure of white cast iron with different wall thickness. Among them, figures (a) – (c) are
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Influence on properties of nodular cast iron
On the premise of good spheroidization of graphite, the mechanical properties of nodular cast iron can be adjusted in a
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Development of lost foam casting in the United States after 1980s
Before the 1980s, the restriction of lost foam casting patent limited the use of dry sand lost foam casting without
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Experimental results and Discussion on casting properties of ZL116 aluminum alloy arm
The fracture is located at the root of the support arm on the casting, and the overall paint surface of