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
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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
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Bimetallic liquid lost foam casting composite wear-resistant lining technology
The bimetallic liquid lost foam composite casting technology is adopted to carry out the process sample by winding the iron
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Optimization of Horizontal Centrifugal Casting Process
There are many research viewpoints about the formation mechanism of anti white mouth defect, such as element area segregation, inoculation
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Classification of casting defects on piston surface
Casting defect Cause Improvement measures White skirt The temperature of molten aluminum is low, and the heat conduction differential ripening
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Lost foam casting process of bimetal wear-resistant castings
Lost foam casting process is known as “new casting technology representing the 21st century” and “green engineering of casting” for
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Analysis of Temperature Field in Solidification Process of Horizontal Centrifugal Casting
The simulation results of the temperature field of the initial horizontal centrifugal casting process castings are shown in Figure 1.
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Evaluation of casting process of nodular cast iron piston ring
From the casting process of nodular iron rings in the above countries, the main process methods abroad are double piece
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Composite technology of horizontal and vertical pouring of middle diaphragm of wear-resistant casting
The middle clapboard is a kind of flat and vertical plate, which means that the mold is molded at the
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Initial technological conditions and physical parameters of horizontal centrifugal casting
1. Calculation of centrifugal speed by empirical formula In the production practice of horizontal centrifugal casting, the centrifugal speed of
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Casting technology of nodular cast iron piston rings in major enterprises in China
At present, the main domestic manufacturers of nodular cast iron piston rings for automotive diesel engines, mini cars and motorcycles
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Research status of dual liquid bimetallic composite casting technology for wear resistant castings
Bimetallic material is a new type of functional material composed of two metals with different mechanical, physical and chemical properties.
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Research status of improving the directivity of high chromium cast iron wear resistant materials
As early as in, the United States studied high chromium cast iron. Due to the high content of chromium, on