Product introduction :
Applied to the main hot runner main shunt plate heating, according to the application environment, any shape.
The hot runner is generally composed of hot nozzle, main splitter plate, temperature control box and accessories. The central component of the hot runner system of the splitter plate, a multi-cavity or multi-point feeding of the splitter plate, transmits the plastic melt transmitted by the main channel nozzle to the nozzles of each injection point through the splitter plate. The split plate can make the cavity of the mold evenly filled, the plastic balance flow, and the system heat balance. Splitter plate series are X type, H type, I type, Y type, K type.
There are two ways to heat the splitter plate. One is internal heating, that is, set the heating rod in the flow channel and heat the plastic from the inside of the flow channel. The other is external heating, which generally opens a heating hole in the direction parallel to the flow channel, inserts a heating rod or installs a heating ring to heat the flow channel from the outside of the flow channel. Compared with the two methods, the internal heating method has higher thermal efficiency, but it is easy to cause local overheating in the hot runner system and increase the flow resistance of the melt. Although the external heating method does not produce local overheating and the flow resistance in the flow channel is small, the flow channel is easy to process, the heating device is easy to purchase, and the maintenance is convenient.
Application scenarios :
Main parameters :
Pipe : Stainless steel
Insulating material : high purity magnesium oxide powder.
Heating wire : Ni8OCr20 nickel wire
Diameter : Φ5mm-Φ25mm
Diameter tolerance : -0.02mm-0.08mm
Tube length : maximum length 3000mm
Tube length tolerance : ± 5 %
Appearance requirements : smooth surface, no scratches, no spots, no depression
Unheated length : Customized on demand
Watt density : max. 40W / cm2
Power tolerance : ± 10 % ( ± 5 % -10 % ). )
Appearance temperature : tube temperature maximum temperature 927 °C
Component temperature : maximum heating temperature
Connector temperature : maximum temperature 260 °C
Connection voltage : customized on demand
High voltage strength : minimum 800VAC heating coil voltage maximum 1250V
Insulation resistance : ≥ 5MΩ ( 500VDC )
Leakage current : ≤ 0,5 mA ( 253 V AC )
Electrical performance : leakage current less than 0.5mA
More selection :
Outer pipe material : 304, 321, 316, 310 stainless steel
Heating wire : Ni80Cr20 nickel wire
Insulation material : high purity magnesium oxide powder
Lead material :
Glass fiber ( temperature resistance 320 ° C )
High temperature glass wool ( 600 °C )
Teflon ( heat resistance 260 ° C )
Silicone rubber ( temperature resistance 180 ° C )
Ceramic beads ( temperature resistance 800 ° C )
Lead protection material :
Glass fiber casing ( 600 °C )
Silicone rubber ( temperature resistance 180 ° C )
Metal woven hose ( temperature 250 °C )
Corrugated metal hose ( 250 °C )
Sealing material :
Silicone rubber ( temperature resistance 180 ° C )
Epoxy resin ( heat resistance 315 ° C )
Ceramics ( temperature resistance 800 ° C )
