Welding quality inspection of cast steel components for railway vehicles
The surface quality of cast steel after welding repair should meet the following requirements: ① For non machined surfaces, the […]
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Simulation analysis of saddle process for large thin-walled castings
1.Analysis of filling process According to the process parameters set earlier, the saddle was numerically simulated, and Figure 1 shows
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Optimization of process plan for saddle of large thin-walled castings
From the simulation of the solidification process in the initial plan, it can be seen that the saddle is prone
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Trial production of process generation for ductile iron castings
The main shaft castings produced by the above process plan have been inspected for dimensions, NDT and mechanical properties according
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Optimization Plan for Precision Casting Process of Turbine Guides
Based on the simulation results and analysis of the initial process of precision casting turbine guide, it can be concluded
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Post weld heat treatment of cast steel components for railway vehicles
For the welding repair of important cast steel components, post weld heat treatment is generally required to eliminate thermal stress
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Process analysis of saddle for large thin-walled castings
1. Analysis of saddle structure Taking the thin-walled saddle as the research object, the three-dimensional model is shown in Figure
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Large thin-walled casting saddle
The saddle is a key component connecting the suspension and frame. Due to the newly developed saddle being a cast
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Analysis of Orthogonal Test Results for Low Pressure Casting
According to the L9 (3 ^ 4) orthogonal experiment, the results of the orthogonal experiment are shown in Table 1.
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Process control of ductile iron castings
The matrix structure of spheroidal graphite cast iron has a very significant impact on its impact properties. It is the
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Orthogonal experimental design for low-pressure casting
There are many process parameters of low pressure casting, among which the temperature distribution and filling speed have great influence
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Welding repair process requirements for cast steel components of railway vehicles
Welding repair of cast steel should be carried out before heat treatment of the cast steel. All welding repair operations
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Chemical composition selection and control of nodular cast iron
The production of nodular cast iron includes the selection of raw materials and the control of chemical composition, spheroidization, inoculation
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Analysis of Defects in Precision Casting Process for Turbine Guides
The simulation results of the initial process defect distribution of precision casting turbine guide are shown in the figure. From
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Model Analysis of A356 Aluminum Alloy Wheel Hub
The research object is an A356 aluminum alloy wheel hub of a domestic passenger car brand, with a wheel hub
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Welding and preheating of cast steel components for railway vehicles
Preheating is a key process to ensure the welding repair performance and quality of steel castings. The preheating temperature required
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Process plan for ductile iron castings
1. Typing scheme The parting scheme is that the motor hole flange is facing down, and the parting is carried
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Analysis of the Filling and Solidification Process of Precision Casting Technology for Turbine Guides
Figure 1 shows the simulation results of the initial process of precision casting for turbine guides at different filling stages.
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Low pressure casting process for A356 aluminum alloy wheel hub
Low pressure casting, as a mature casting process, has the characteristics of smooth filling, low cost, and good casting quality,
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Preparation before welding of cast steel components for railway vehicles
Before welding and repairing cast steel components, necessary pre welding preparations should be carried out. Firstly, it is necessary to
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Structure and technical requirements of ductile iron castings
1. Structure of nodular cast iron The material grade of the ductile iron parts for the main shaft of the
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Production verification of investment castings for ball valves
After determining the optimal process parameter group, reset the process parameters according to the optimized process for numerical simulation. The
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Range and variance analysis of investment casting process
Use orthogonal experiments to investigate the influence of various factors on the maximum shrinkage porosity. Based on 9 sets of
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Structural Characteristics and Mathematical Modeling of Precision Casting Process for Turbine Guides
The turbine guide is made of K4169 superalloy, and its structure consists of inner ring, outer ring, flange and blade.
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Simulation Analysis Results of Investment Casting
Create a 3D model of the investment casting and gating system based on the designed gating system, and import it
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Casting technology of low temperature ductile iron spindle for super large power wind turbine
Today’s wind power technology presents the trend of large-scale development. Larger units can make more intensive use of wind energy
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Numerical simulation of precision casting process for turbine guide
Using ProCAST software to numerically simulate the precision casting process of turbine guide vanes, deeply analyze the potential risks and
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Precision Casting Technology for Turbine Guides
The turbine guide is an important component within a gas turbine engine, whose main function is to change the flow
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Basic requirements for welding repair process of cast steel components for railway vehicles
The basic requirements for welding repair of cast steel components in railway vehicles include general requirements, enterprise requirements, personnel requirements,
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Design of Investment Casting System for 304 Stainless Steel Ball Valve
The design of the gating system directly affects the quality of investment castings. The gating system is generally composed of