Performance test of gray cast iron
1. Hardness test The sampling position of the hardness sample of the gray cast iron cylinder block is shown in […]
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Heat treatment equipment for nodular cast iron grinding ball
According to the characteristics of Si Mn alloyed ductile iron grinding ball, the heat treatment equipment should have the characteristics
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Characteristics and teaching of sand casting process
Casting is an important teaching module of metalworking practice course. Its teaching content is composed of sand casting, lost foam
Scientific
Observation and analysis of microstructure of gray cast iron
1. Metallographic observation The metallographic sample is taken from the gray cast iron cylinder body, cut and sampled with a
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Study on heat transfer coefficient between medium core and casting interface in sand casting
The variation law of interfacial heat transfer coefficient of typical ZL101 Aluminum alloy ring sand castings with height of 150
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Production of gray cast iron castings
Figure 1 shows the model and production flow chart of a high-strength gray cast iron engine cylinder block. The main
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Analysis of back calculation results of interface heat transfer coefficient in sand casting
Based on the temperature field data measured by pouring experiment and the established matlab inverse calculation program, the interface heat
Scientific
Matrix texture and graphite state in gray cast iron
Gray cast iron is mainly composed of matrix structure and graphite, and others include eutectic, carbide and cementite eutectic. Its
Scientific
Microstructure and Properties of Si-Mn Alloy Nodular Cast Iron Grinding Ball
To do a good job of Si-Mn alloyed nodular cast iron grinding ball, first of all, spheroidize the nodular cast
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Establishment of inverse calculation program for interface heat transfer coefficient in sand mold casting
It mainly arranges and analyzes the measured and back calculated data, calculates the interface heat flow and interface heat transfer
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Solidification process of gray cast iron
Cast iron generally refers to multi-component iron carbon alloy with C content of 2.0% (wt%, the same below) W. Generally,
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Heat Treatment Process of Si-Mn Alloyed Ductile Iron Grinding Ball
The heat treatment process of Si Mn alloyed ductile iron is similar to that of other ductile iron, which can
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Heat transfer coefficient between medium core and casting interface in sand mold casting process
At present, the research on the inverse calculation of interfacial heat conduction in sand mold casting process mainly focuses on
Scientific
Supplement and optimization of practical production results and improvement scheme of long fork lost foam casting of nodular cast iron
The above improvement scheme is used to verify the pouring production. Figure 1 is the foam pattern cluster and the
Scientific
Selection of Quenching Medium for Grinding Ball of Si-Mn Alloyed Ductile Iron
The quenching medium used for nodular cast iron grinding ball should have the following two characteristics: 1) The quenching medium
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Si-Mn alloy ductile iron grinding ball
In order to overcome the shortcomings in the traditional production of ADI grinding balls, it is necessary to find cheap
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High chromium cast iron grinding ball
High chromium white cast iron is selected as the grinding ball of high chromium cast iron, and the mass fraction
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Solution method of interface heat transfer coefficient in sand mold casting
In the process of metal solidification, the interfacial heat transfer coefficient is affected by many factors, such as sand casting
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Simulation and result analysis of improved process of ductile iron long fork lost foam casting
The mold filling and solidification of the improved process are simulated, and the following results are obtained: 1) Results of
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Low chromium cast iron grinding ball
Low chromium white cast iron is used as the grinding ball of low chromium cast iron. The chromium content is
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Research status of interfacial heat transfer coefficient in sand mold casting in China
The study of interfacial heat transfer coefficient in China is relatively late. Inspired by foreign scholars, Hao Weiwei, Chen Jiayu
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Ductile iron grinding ball
In recent ten years, based on the research on the development of grinding ball materials at home and abroad, China
Scientific
Improvement scheme of lost foam casting process for nodular cast iron long fork
According to the trial production and simulation results of the two schemes of bottom injection and top injection, the bottom
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Causes and Countermeasures for Cracking and Casting Defects of Large Supporting Wheels
1. Causes Cracking of the supporting wheel The crack shape of the casting defect is fine and straight. The crack
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Application of nodular cast iron grinding ball and heat treatment technology
The systematic study of wear-resistant materials has a history of more than 100 years. Different types of wear-resistant materials, such
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Research status of interfacial heat transfer coefficient in sand mold casting abroad
Since the 1950s, casting engineers have found that the interfacial heat transfer coefficient has a great influence on the change
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Modification of solidification calculation of nodular cast iron long fork lost foam casting
Comprehensively considering the solidification simulation results and trial production results of the two trial production processes of nodular cast iron
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Causes and countermeasures of super detection casting defects on nozzle surface of large supporting roller
1. Causes In the semi finishing stage after quenching and tempering, it was found that the nozzle end face had
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Causes and Countermeasures of Overshooting Defects on Riser Surface of Large Supporting Roller Casting
1. Causes Through the collection and analysis of more than 100 casting idlers, a total of 12 casting idlers have
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Development status of foundry CAE Technology in China
Compared with foreign countries, China’s foundry CAE technology started relatively late, but developed rapidly. In the late 1970s, the foundry