Application of precision forming technology in tractor parts
Tractor transmission system is the core component of tractor, which determines the performance of the whole machine, reflects the manufacturing […]
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Development trend of tractor parts
At present, the manufacturing development of domestic tractor products and parts has the following characteristics and trends: 1) The average
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Improvement of rapid casting technology for tractor gearbox shell
The structure of gearbox shell is shown in Figure 1. Its material is QT500-7, the blank weight is 458 kg,
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Dieless casting
Dieless casting refers to the manufacturing of sand mold cavity for casting, which no longer uses molds. It has the
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Spheroidizing process of lost foam casting of nodular cast iron
1.Selection and implementation method of inoculant Aiming at the problems of high pouring temperature and easy decay of inoculant in
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Discussion on the casting blow hole defect of motor shell
Motor housing is one of the most important components of electric vehicle motor. ZHY casting produces a motor shell blank,
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Cold extrusion process of spur gear
The cold extrusion process of spur gear is a net forming or near net forming process. Its production efficiency and
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Application of precision forming technology
In the manufacturing of mechanical parts, generally, the blank is generated by forming technologies such as casting, forging, welding and
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Effect of chilling system on solidification of steel castings
The chilling effect of the cold iron will change the local cooling rate of the steel casting, so that the
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Preparation of samples for mechanical properties and machinability of gray cast iron
The multi-element alloy additive is developed and designed by China Yituo on the basis of previous application experience according to
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Machinability of gray cast iron for engine block
Developed countries carried out the research on the machinability of gray cast iron as early as the 1940s. After long-term
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Determination of riser number and position of steel castings
After analyzing the hot spot position and feeding channel of steel castings, the position of riser can be determined. In
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Numerical simulation and technology of sand mold casting of mud pump body
With the help of ProCAST software, the temperature field and flow field in the filling process, temperature field and stress
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Determination of chemical composition of large nodular cast iron roll
The chemical composition of nodular graphite casting not only directly affects the mechanical properties of nodular graphite casting, but also
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Determination of hot spot position and feeding channel of steel castings
Generally speaking, the riser should be set at the hot joint of steel castings, that is, the final solidification area.
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Technology of large nodular cast iron roll
The important roll part of an equipment, which was originally a welded part, is now changed into a ductile iron
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Application of modeless NC machining technology in the production of large steel castings
1. Pouring process selection According to the structural and functional characteristics of components, two feasible pouring schemes are determined before
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Sand casting process scheme of mud pump body
According to the structural characteristics of sand casting mud pump body and the physicochemical properties of ZG35, two sets of
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Application of modeless NC machining technology to large steel castings
Combined with a specific case of large-scale steel casting processing and manufacturing, the application of modeless NC processing technology in
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Numerical simulation and technology of sand casting for dredge pump body
Taking the sand mold casting of the mud pump body as the research object, according to the size and structural
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Principle and characteristics of NC machining of Moldless mold for large steel castings
Rapid Moldless mold processing and production driven by digitization is not only a common technology in modern industrial production, but
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Rough machining of sand casting mold formwork
First perform rough machining of sand casting mold template, create a tool with diameter d = 40mm and fillet radius
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Development status of NC machining technology for large steel castings
In recent years, NC technology has developed rapidly. Developed countries have fully popularized NC machining and manufacturing technology in industrial
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Treatment technology of delaying spheroidization decay in lost foam casting
The low spheroidizing grade of lost foam casting nodular cast iron is mainly caused by high spheroidizing temperature (due to
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Spheroidizing process of lost foam ductile iron casting
As a high-performance material, nodular cast iron has been widely used in many industries. After years of development, the output
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Influence of casting process on local quality of castings
The pouring process of liquid metal involves the phase transformation process of metal. Even on the premise of meeting the
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Method for improving machinability of gray cast iron
The tensile strength of gray iron castings has been increased from 200 MPa to 250 MPa or even 300 MPa.
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Improved design of riser feeding system and chill system in sand casting
When liquid metal is poured into the mold, it will produce volume shrinkage during cooling and solidification. This shrinkage may
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Study on sand mold casting technology of tractor split axle housing
The casting system of sand casting axle housing is simulated and analyzed by using ProCAST simulation software. The solidification sequence
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Main quality problems of tractor axle housing by sand casting
As a key part of tractor, the main contents of sand casting axle housing are as follows: firstly, the structural