Carbon emission model of energy carbon source and undesired carbon source in sand casting
Energy sources including electricity, natural gas and coal are used in the process of sand casting. For example, no additional […]
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Effect of rare earth elements on Microstructure of low carbon equivalent gray cast iron
Since the 1980s, the rare earth industry has developed rapidly. Whether abroad or at home, the application technology of rare
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Energy spectrum analysis of automobile shell casting defects
The casting defect samples were analyzed by energy spectrum, and the scanning positions of energy spectrum points were shown in
Scientific
Carbon emission model of carbon source of sand casting materials
The material consumption of sand casting is different from that of other machinery manufacturing industries. The production process of sand
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Brief introduction of low carbon equivalent gray cast iron
Gray cast iron has low cost, low price and wide application. It has always accounted for a large proportion in
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Energy spectrum analysis of casting defects of automobile shell
The defect samples are analyzed by energy spectrum, and the scanning positions of energy spectrum points are shown in Figure
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Comparison between new type ductile iron piston and steel piston after isothermal quenching
(1) A new generation of high-performance piston is manufactured by using ferrite ductile iron, such as QT600-7 profile split method.
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Effect of different proportion of pig iron added to gray cast iron cylinder head
Gray cast iron cylinder head pig iron is added according to 5%, 10%, 15% and 20% of the total charge.
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Precise manufacture of casting core for automobile engine block
Because the cold core box is made by blowing resin sand, in the specific production, in order to make the
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Comparison between new type nodular cast iron piston and steel piston after isothermal quenching
After friction welding of existing 38MnVS6Ti non quenched and tempered steel and 42CrMo4 quenched and tempered steel pistons, if only
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Causes and Solutions of Slag Inclusion Defects in Automobile Shell Castings
During casting production, the causes of oxidation slag inclusion defects are: ① The oxide slag on the liquid surface is
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Effect of casting technology on mechanical bearing pedestal performance test results
1. Impact performance After the impact test, it is found that the impact absorption energy of the bearing pedestal increases
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Production and size selection of ductile iron profiles
During the production of the ductile iron profile, the medium frequency induction furnace can be used for smelting. The number
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Analysis of ferrite layer on the surface of gray cast iron cylinder head
There may be two reasons for this phenomenon: holding time of molten iron and water content of molding sand. 1.
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Causes and Solutions of Blow Hole Defects in Automobile Shell Castings
In the process of casting production, the causes of blow hole defects are: ① The excessive velocity of molten iron
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Effective guarantee of casting accuracy of automobile engine cylinder block
During the casting process of automobile engine cylinder block, in order to effectively ensure the casting accuracy of automobile engine
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Energy spectrum analysis of casting defects
Energy spectrum analysis of casting defect samples; For example, the table shows the element composition of each scanning point in
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SEM observation of casting defects
At a higher magnification of the scanning electron microscope, the casting defects of the three samples are as shown in
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Selection of heat treatment process and process after friction welding of ductile iron piston
The QT600-7 ductile iron piston after friction welding needs to be annealed at 400 ℃ – 500 ℃ to eliminate
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Selection and Advantages of Welding Methods for Nodular Cast Iron Piston Head and Skirt
Compared with 38MnVS6Ti non quenched and tempered steel and 42CrMo4 quenched and tempered steel, nodular cast iron material has the
Scientific
Selection of Composition of Ductile Iron Profiles
Since the new high-performance piston uses ball ground cast iron profiles to process the piston head and piston skirt respectively,
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The new type of split friction welded ductile iron piston
As one of the main accessories of the internal combustion engine, the piston, piston ring and cylinder liner together form
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Hardness control of gray cast iron cylinder head in actual production
Generally speaking, the hardness is positively correlated with the tensile strength and wear resistance of gray cast iron, while the
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Application of casting technology for automobile engine cylinder block
Although there are many modeling methods for cylinder components, with the continuous improvement of cylinder modeling technology, high-pressure modeling method
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Defect Detection of Automobile Shell Castings
For defects visible to the naked eye on the casting surface and the parts with defects found during flaw detection,
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Casting Defects and Causes of Automobile Shell Castings
A company used the wet casting method to produce a certain type of automobile shell castings, which are made of
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Selection of equipment and melting process for locating plate of high strength gray cast iron
1. Production equipment and burden ratio A 3T medium frequency induction furnace is used in the smelting process, and the
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Analysis of casting process defects of turbocharger shell
Through the understanding of the existing casting process of turbocharger, combined with the current situation of the casting process and
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Development significance and current situation analysis of automobile engine cylinder block casting technology
1. Analysis of development significance of automobile engine cylinder block casting technology In the specific application process of automobile, the
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Classification of internal casting defects of piston
Casting defect Cause Improvement measures Unqualified chemical composition The composition of master alloy ingot is unqualified, and the burden of