Test of shrinkage porosity mechanical properties of semi solid die casting thick wall products
Vickers hardness measurement The unit of hardness measured is micro Vickers hardness. When hv-30 Vickers hardness tester is used, the […]
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Microstructure analysis of semi solid die casting thick wall casting
During the preparation of metallographic samples, sawing, cutting, grinding, polishing and other processes are required. After the blank samples to
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Effect of pressurization pressure on shrinkage porosity of semi solid die casting thick wall castings
In this test, the method of variable control was adopted. Under the condition of other parameters unchanged, the boosting pressure
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Shrinkage porosity and segregation of semi solid die casting thick wall products
(1) Aiming at the common shrinkage and porosity defects in semi-solid die-casting thick wall products, the microstructure analysis and mechanical
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Research status of solid-liquid segregation in semi-solid die casting
Solid liquid segregation is a typical semi-solid defect in thick wall products. It refers to the uneven distribution of solid
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Feeding mechanism of semi solid die casting slurry
In semi-solid casting, in order to reduce or even eliminate the shrinkage cavity and porosity defect, the surplus slurry is
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Microstructure analysis of shrinkage porosity of semi solid die casting thick wall products
1 metallographic structure analysis The optical microscope (OM) used in this experiment is axiovert 200, and the magnification is 25,
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Shrinkage mechanism of semi solid die casting slurry
The traditional liquid die casting metal from liquid solidification to solid state needs first liquid shrinkage in pure liquid state,
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Brief introduction of shrinkage cavity and porosity in semi solid die casting
In the defect analysis of semi-solid thick wall products, shrinkage cavity and porosity are the typical defects studied. In the
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Advantages of die casting semi solid forming technology
Due to the characteristics of semi-solid slurry, semi-solid forming has the following natural advantages over other casting methods (1) In
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Preparation of semi solid slurry for semi solid die casting
The preparation of semi-solid slurry is the most important part of semi-solid forming technology. With the continuous development in recent
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Feeding technology of casting die for automobile disc brake caliper
Taking a brake caliper casting of MQB platform of Volkswagen as the research object, a series of research on the
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Defects of semi solid die casting
With the development of semi-solid theory and the promotion of semi-solid forming technology, more and more kinds of semi-solid die-casting
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Application of semi solid forming technology in thick wall casting
In 1971, Professor Flemings’ student DB When Spencer studied the hot cracking problem of alloy at high temperature, due to
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Optimization and verification of gating system for brake caliper mold
According to the above theory, in order to meet the requirements of the sectional area of the sprue, it is
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Shrinkage porosity and segregation of semi solid die casting thick wall products
Aluminum is the most abundant metal element in the earth’s crust. Although the large-scale preparation and industrial application of aluminum
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Inspection and analysis of brake caliper mold pouring test
(1) The 3D scanning equipment is used to scan the casting surface one by one, and then the three-dimensional surface
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Casting test of brake caliper mould
The proportion of raw materials for smelting is scrap: recycled material = 4:6, and the composition of molten iron after
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Filling simulation of gating system for automobile disc brake caliper
The simulation results of filling temperature field are shown in Figure 1. It can be seen that the filling liquid
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Design of casting gate system for die of automobile disc brake caliper
(1) Confirmation of number of cavities and type of gating system The equipment model is disa230x, and the mold plate
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Introduction of gating system for casting parts of automobile disc brake caliper
The gating system is composed of a gate cup, a runner, a sprue and an inner gate. It is a
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Basic measures to prevent shrinkage porosity of nodular graphite castings
Inoculation treatment: inoculation treatment of nodular cast iron can improve the roundness of graphite ball, improve the spheroidization rate, and
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Basic measures to prevent shrinkage porosity of castings
The causes of shrinkage cavity and porosity of nodular cast iron are complex. The main factors affecting primary shrinkage, volume
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Common skills of casting runner design
Sand slag hole is the most common surface defect of sand mold casting, which is difficult to avoid and usually
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Causes of shrinkage porosity in ductile iron castings
The solidification process of ductile iron castings is generally a process of shrinkage, expansion and re shrinkage. Although the precipitation
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Selection of casting gate cup and runner shape for automobile disc brake caliper
To obtain a dense casting, the sprue cup should be poured as soon as possible and always filled during the
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Solidification characteristics of ductile iron casting
Nodular cast iron (ductile iron for short) is the 50th century A kind of high strength cast iron developed in
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Calculation of casting gating system for automobile disc brake caliper
The flow rate W is defined as the metal weight passing through the cross-sectional area of the gating system within
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Hot spot / modulus simulation analysis of brake caliper casting parts
Before designing the mold process, the natural properties of the parts should be analyzed, including weight, volume, surface area, number
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Introduction of vertical parting box less injection molding line for disa casting
Disa company in Denmark is famous for its vertical parting box less injection molding line and shot blasting machine. It