The advantages of Lost foam molding line are as follows:
1. The size and shape of the casting are accurate, the repeatability is good, and it has the characteristics of precision casting;
2. High surface finish of castings;
3. The sand mold and core making department were eliminated in EPC, and the casting defects and waste products caused by core making and core lowering were eliminated;
4. The molding process is greatly simplified, and the casting defects and waste products caused by taking and closing the mold are eliminated;
5. The EPC adopts dry sand molding without binder, water and any additives, which eliminates all kinds of casting defects and wastes caused by water, additives and binders;
6. The lost foam greatly simplifies the sand treatment system, the molding sand can be reused completely, and the molding sand preparation department and the waste sand treatment department are cancelled;
7. It is very easy to drop sand, which greatly reduces the amount of work and labor intensity;
8. There is no flash or burr in the casting, which reduces the cleaning and grinding work by more than 50%;
9. The reasonable shape of the riser can be set in the ideal position, which is not restricted by the traditional factors such as parting and taking the mold, and reduces the internal defects of the casting;
10. EPC negative pressure casting is more conducive to filling and feeding of liquid metal, and improves the structure density of casting;
11. Combined casting, a box of many pieces, greatly improving the casting process yield and production efficiency;
12. Reduce machining allowance and machining cost;
Pre-foaming machine
PLC and touch screen control are adopted, automatic storage of materials, quantitative heating and pre delivery, automatic control of barrel temperature and pre delivery time, stable and even weight of pre delivery beads, and continuous automatic circulation production ■ high precision pressure reducing valve imported from Japan is adopted to ensure constant inlet pressure and stable barrel temperature, so as to accurately control the bead density ■ the machine is cost-effective, safe and stable, and easy to maintain
Foam mold molding machine
■ the machine adopts PLC and touch screen control, selects manual and automatic feeding, and automatically completes a molding process of mold closing, mold locking, heating, solid moving mold heating, cooling and mold opening
■ the frame hydraulic system of this machine adopts the motor-driven circuit, with stable fast and slow conversion and mode locking. The oil pump does not work in the rest of the time except for opening and closing the mode, saving energy consumption
■ photoelectric proximity control is adopted, with high opening and closing precision, small model deviation and smooth white model
■ the machine can save steam and manpower, improve efficiency and operate easily. Each person can operate multiple machines at the same time
