Steps of producing gray iron lost foam casting by using water slag iron ironmaking
The direct production of gray iron lost foam castings by using water slag iron smelting can melt the water slag […]
The direct production of gray iron lost foam castings by using water slag iron smelting can melt the water slag […]
Water slag iron is formed from the waste slag in the high-frequency steelmaking furnace by rapid cooling in water. It
The simulation software of lost foam casting simulation is ProCAST and visual environment. ProCAST can accurately simulate the flow process
In the process of lost foam casting molding, solidification is the process of metal liquid gradually cooling from liquid phase
Although lost foam casting has been successfully applied in the actual production of iron castings, the cognition and understanding of
The main difference between lost foam casting and sand casting is that the molding process of lost foam casting no
Lost foam casting is formed by foamed plastic beads (EPS, EPMMA or STMMA) after foaming and molding in the mold,
Water slag is formed by rapidly cooling the blast furnace slag in the hot-melt steel-making high-frequency furnace in water. There
China began to explore the lost foam casting process in the 1960s, which has a history of more than 50
Because lost foam casting has many outstanding advantages, more and more foundry workers at home and abroad began to study
The series of experiments were carried out on the filling process of lost foam casting of gray cast iron by
The United States is one of the first countries to use the lost foam casting method in foreign countries. MIT
The filling form of regular flat plate model is divided in the front. In actual production, the structure of lost
Lost foam casting is a new casting technology developed in the early 1980s. Because of its simple production process, good
When pouring the interface heat transfer coefficient, the heat exchange process between the casting and the mold begins from the
Lost foam casting process is different from other casting methods. Lost foam casting process is a new casting method formed
The model shown in Fig. 1 is made of two models with the same size and different density bonded by
The phenomenon that the mold wall displaces after the molten metal is poured into the lost foam casting mold is
Many observations and experiments have shown that the liquid metal is filled radially forward in the filling process of lost
The filling process of lost foam casting has a decisive influence on the quality of castings. Due to the existence
Fig. 1 to Fig. 3 are isochronous graphs of liquid metal filling pattern of lost foam casting under different pouring
Compared with the traditional casting method, lost foam casting is very simple to box and remove sand. Due to the
Pouring has a great influence on the quality of castings. The more complex the pattern is, the more important it
The outer circle diameter is 150mm, the inner circle diameter is 100mm, and the ring thickness is 20mm. The model
After putting the mold coated with lost foam casting paint into the sand box containing bottom sand, fill the sand
The external geometric dimension is 200mmx100mm, the internal geometric dimension is 150mmx50mm, and the thickness of the model is 20mm.
The test results are shown in the table: Pouring position Total mold filling time (s) Average filling speed (cm/s) Side
Lost foam casting is a special gravity casting. Because of the existence of foam solid shape in the cavity, it
Paint Total mold filling time (s) Average filling speed (cm/s) Low permeability coating 1.18 17.00 Medium permeability coating 1.14 17.54
The test results are shown in the table. Sprue height (mm) Total mold filling time (s) Average filling speed (cm/s)