I Description
APG is a special technology for casting high voltage electric components from epoxy resin. It can reduce the casting duration to dozen minutes from dozen hours by comparing to conventional vacuum casting method. It can control exothermic effect well, good for compensating shrinkage by curing reaction and so casted products have good dimension stability and high mechanical strength. So, this APG technology is especially suitable for casting pole rod of vacuum breaker, cover of SF6 breaker and those products of thin-wall, complicate or multiple side core pulling.
APG technological process includes three sections: pre-mixing, automatic pressure gelating and curing.
The complete plant for APG process need moulds, pre-mixing device, movable injection pressure vessel, hydraulic pressure gelating machine, air compressor, curing oven, etc.
There are single-station and double-station APG epoxy resin casting machines.
WHAG-882 is in double-station, fixed mould plates are fixed on in the middle of the frame. When one station is under working, another station can be stopped for taking out finished product. Thus raises productivity efficiency.
II Main technical data of WHAG-882 APG casting machine:
|
No.
|
Item
|
Data
|
|
1
|
Automatic pressure gelating machine
|
|
|
|
Die assembly plate dimension (heating plates)
|
800 x 800mm
|
|
Die clamping force
|
200kN
|
|
Die clamping speed
|
3.2m/min
|
|
Die opening speed
|
5m/min
|
|
Die clamping distance (distance between heating plates)
|
200-1200mm
|
|
Min. distance between upper core pulling and die plate center
|
150mm
|
|
Min. distance between lower core pulling and die plate center
|
150mm
|
|
Upper and lower die assembly plate dimension
|
520x240mm
|
|
Hydraulic station motor power
|
7.5kW
|
|
Hydraulic pressure
|
30MPa
|
|
Total heating power
|
30kW
|
|
Body tilting degree
|
0-7°
|
|
Outline dimension (L x W x H)
|
6630x1350x3195mm
|
|
Weight
|
about 4000kg
|
|
2
|
Pre-mixing device & movable vessel
|
|
|
|
Outline dimension
|
1830 x 850 x 2500mm
|
|
Mixing motor power
|
3kW
|
|
Mixing head elevating (hydraulic driven) motor power
|
0.75kW
|
|
Vacuum pump speed
|
8L/S
|
|
Vacuity
|
0.5mbar
|
|
Vacuum pump motor power
|
1.5kW
|
|
Capacity of mobile pressure vessel
|
100L
|
|
Heating method of pressure vessel
|
heat oil
|
|
Heating power
|
1.5kW
|
Note: Single-station and other size APG casting machines are available.
III Main configuration
1) Hydraulic components (valves, seals & pump): famous brand from Taiwan
2) PLC + touch screen: Mitsubishi from Japan
3) Main electric components: Schneider brand
|APG casting machine| APG casting machine| APG casting machine| automatic pressure gelating machine| automatic pressure gelating machine| 
