Iron mold sand coating process and common quality problems in original mold casting
1. Original mold design structure The original mold structure design of t9000-c iron mold sand coated casting cylinder block in […]
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CAE simulation and analysis of nodular iron castings of small motor base
In order to reconfirm the defects of the nodular iron casting and the rationality of the analysis results, the CAE
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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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Original technology and existing problems of rapid casting of tractor gearbox shell
1. Casting process In order to ensure the smooth filling of molten iron and prevent the occurrence of defects such
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Analysis on solidification process of mud pump body in sand casting
The three-dimensional models of casting, sand mold and cold iron are meshed by finite element method. After being imported into
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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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Characteristics and analysis of blow hole defects in motor shell casting
Through the verification of small batch production, from the statistical table of defects, the first defect type is blow hole
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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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Rapid casting and pouring test of tractor small parts
1. Water glass sand mold pouring test Figure 1 shows the water glass sand mold pouring test of the brake
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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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Test results of centrifugal casting isothermally quenched ductile iron bushing
Six groups of samples were selected and tested for mechanical properties by wav-600a universal testing machine. The results are shown
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Simulation results and analysis of gating system of mud pump body in sand casting
Figure 1 shows the simulation results of filling sequence and velocity field of each part of mud pump body in
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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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Analysis of mold filling process of mud pump body in sand mold casting
In order to evaluate the rationality of the optimized process scheme, the software ProCAST needs to be used to simulate
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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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Casting and casting of complex tractor parts
Compared with the traditional wood mold turning process, the mold size and size are limited by the table size and
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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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Dieless forming of casting sand core for complex tractor parts
The sand mold sand core of tractor complex castings adopts the methods of increasing material manufacturing and reducing material manufacturing
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Shrinkage porosity and shrinkage cavity in steel castings
During solidification, the steel casting will produce liquid shrinkage and solidification shrinkage. When the feeding system cannot provide sufficient liquid
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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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Casting technology and parting design of tractor
The structure of tractor castings is complex. For example, the transmission case shell part of chassis is a thin-walled shell
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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