Sand casting of aluminum alloy box
Sand mold aluminum alloy has been widely used in modern aviation, aircraft manufacturing, automobile, tractor, instrument, electric power and other […]
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Factors affecting the machinability of gray cast iron
Iron carbon alloys with carbon content greater than 2.14% or eutectic structure in the structure are called cast iron. It
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Melting process of large nodular cast iron roll
1. Selection of raw materials High quality raw materials are required for the production of as Cast High Toughness Nodular
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Research status of engine block materials
The castings of engine cylinder block, cylinder head and cylinder liner not only have complex structure, various processes, great casting
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Welding process flow and control requirements of nodular cast iron end cover castings
Since ductile iron castings are prone to crack defects during cold welding, in order to ensure that all relevant properties
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Welding repair process of nodular cast iron end cover casting
The structure of nodular cast iron end cover casting for train engine is shown in the figure. The material brand
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Analysis of casting process problems and improvement scheme of nodular cast iron support casting
1. Cause analysis The modified ductile iron casting process is drawn into a three-dimensional diagram by 3D software, and then
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Improvement and verification of casting process of vermicular graphite cast iron brake disc
(1) Increase the use of return material In order to reduce cost and increase efficiency, the consumption of return material
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Improvement measures and practice of new type lost foam casting vibrating system
1. Improve the stiffness and strength of lost foam casting sand box The bottom of lost foam casting sand box
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Application of a new type of vibrating table in lost foam casting
Lost foam casting requires that the molding sand can fill the mold space tightly during molding. Therefore, the vibrating system
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Lost foam casting process of cylinder block
As the core component of the engine, the cylinder block has complex structure, high precision requirements and difficult forming. lost
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Measurement method of Vickers hardness of precision casting parts
Precision casting Vickers hardness test is a kind of indentation hardness test. The value of Vickers hardness has nothing to
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Casting technology of nodular cast iron support casting
The heavy truck rear axle leaf spring support is the key component connecting the leaf spring and the frame. It
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Mass production of vermicular graphite cast iron brake disc
Brake disc has been widely used in the braking system of rail vehicles. Vermicular graphite cast iron is a new
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Surface nitriding of precision casting parts
Nitriding is a chemical heat treatment method in which nitrogen atoms penetrate into the surface of metal and alloy workpiece
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Cause analysis of surface defects of AlMg10 alloy casting parts
It can be seen from the chemical composition analysis, microstructure metallography and SEM observation results of the part alloy that
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Filling velocity equation of sand casting
Sand casting method is usually adopted for machine tool bed, and its process flow mainly includes the following steps: ①
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Mechanism and prevention of black spot defect on cast iron cylinder liner of diesel engine
Through comprehensive analysis of the test results, it can be seen that: (1) The slight difference of graphite morphology in
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Influence of centrifuge spindle vibration on black spot defect of diesel engine cast iron cylinder liner
The structure of horizontal centrifuge is simple, and abnormal vibration of centrifuge spindle occurs from time to time. The abnormal
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Surface defects of AlMg10 alloy casting parts
Although the casting performance of Al Mg casting alloy parts is not as good as that of Al Si alloy,
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Effect of cooling and solidification conditions on black spot defect of cast iron cylinder liner of diesel engine
During the cooling and solidification process of cylinder liner, the cooling water from the outer wall metal mold and impacting
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Effect of inoculant on black spot defect of cast iron cylinder liner of diesel engine
Inoculant is added during the post-treatment of molten iron furnace, and the melting point of inoculant is generally 1300 ~
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Experimental study on black spot defect of cast iron cylinder liner of diesel engine
See Table 1 for the chemical composition of metal mold centrifugal casting vanadium titanium alloy gray cast iron cylinder liner.
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Formation mechanism of black spot defect on cast iron cylinder liner of diesel engine
The cast iron cylinder liner of diesel engine is generally produced by metal mold centrifugal casting. In production, it is
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Design of riser for lost foam casting process of cast steel valve body
According to the simulation results of lost foam casting defects of cast steel valve body and the comprehensive analysis of
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Cause analysis of shrinkage porosity of nodular iron castings
Nodular cast iron solidifies in “paste”. Compared with gray cast iron, eutectic solidification time is long, the number of eutectic
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Shrinkage porosity of nodular iron castings of wind turbine unit
The operation environment of wind turbine is relatively bad, and the supporting large parts should be used for a long
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Cause analysis of defects in lost foam casting process of original cast steel valve body
Fig. 1 and Fig. 2 are respectively solidification time nephogram and solid rate change diagram of ZY direction section plane
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Failure low magnification analysis of qt800-3 nodular cast iron crankshaft
The fracture morphology of the failed nodular cast iron crankshaft shows the fracture process and mechanism of the nodular cast
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Failure of qt800-3 nodular cast iron crankshaft
In February 2021, an automobile company conducted a bench test and operated at full speed and full load for 65