Lost foam casting Box-Behnken test
ProCAST software was used to carry out numerical simulation of top and side pouring schemes, and the temperature field, shrinkage […]
ProCAST software was used to carry out numerical simulation of top and side pouring schemes, and the temperature field, shrinkage […]
It can be seen from the figure that China’s lost foam casting began in 1990. Compared with foreign countries, China’s
Auxiliary materials and aluminum alloy lost foam casting technology are the key research objects in the field of lost foam
(1) Development history of LFC casting in China Compared with other casting methods, the research of magnetic mold molding in
(1) Development history of foreign FMC casting The first place where the research on lost foam casting began was the
(1) Type of alloy used Aluminum alloy, nodular cast iron, gray cast iron, special cast iron, low carbon steel, ordinary
Compared with traditional sand casting, lost foam casting has many advantages. Its advantages are as follows: (1) High dimensional accuracy
Generally, for the newly put into production lost foam Castings, engineers and technicians rely on experience to select pattern density,
As a key part of the whole machine, box casting has an important impact on the use of construction machinery,
It can be seen from the table that under the pouring temperature of 1420 ℃ and 1450 ℃, the mold
Many process parameters can affect the quality of lost foam castings. The process parameters of lost foam casting mainly studied
Due to the characteristics of lost foam casting, compared with sand casting, its process is more complex, so there is
①When using polystyrene foam in white mold manufacture, its density is very small, and the labor intensity of the operators
The fire-resistant coating for lost foam casting includes refractory aggregate, carrier (solvent), suspending agent, binder and other additives. ① Refractory
As shown in the figure, the shrinkage cavity distribution with volume fraction greater than 0.05 predicted by numerical simulation technology
One layer of refractory coating hung on the outer surface of the foam plastic model is one of the three
The figure shows the numerical simulation solidification of the gearbox at different times. It can be seen from the figure
The process flow of lost foam casting is divided into two parts: white area and black area. (1) the process
The picture shows the filling state diagram of the gearbox case at different times, of which yellow is metal liquid.
lost foam casting process technology, usually referred to as EPC in English, is also known as gasification mold casting or
In the process of lost foam casting, high temperature molten metal can quickly decompose foam pattern after contacting with foam.
With the development of industrialization in China, ductile iron has become the main metal material in industrial production due to
The bimetallic liquid lost foam composite casting technology is adopted to carry out the process sample by winding the iron
Lost foam casting process is known as “new casting technology representing the 21st century” and “green engineering of casting” for
1) In terms of material thermophysical parameters: as the actual measurement of material thermophysical parameters requires huge financial resources and
The lost foam casting process of nodular cast iron was studied by using ProCAST software and visual environment software. The
The lost foam casting Pouring Scheme of ductile iron mainly includes pattern making, layout of ductile iron castings, design of
The filling process of lost foam casting is different from the traditional filling process of hollow sand mold gravity casting.
The above improvement scheme is used to verify the pouring production. Figure 1 is the foam pattern cluster and the
The mold filling and solidification of the improved process are simulated, and the following results are obtained: 1) Results of