Hot runner system test requirements for a mould company
1. Hot runner wiring layout is reasonable,easy maintenance, wiring cable number correspondence.
2. Whether safety tests, in order to avoid hot runner system leakage and other accidents.
3. Hot runner system and temperature controller meets customer requirements.
4. Main gate sets whether to use a threaded connection with the collecting plates,flat bottom surface contact seal, surrounded by welding seal.
5. Manifold plate with heating plate or heating rods is good contact, the heating plate is fixed with screws or studs, the surface is not a good fit flash seam, heating rods and collector plate with the gap of not more than 0.05-0.1mm (h7 / g6 ), easy to replace, repair.
6 Manifold plate with heating plate or heating rods is good contact, the heating plate is fixed with screws or studs, the surface is not a good fit flash seam, heating rods and collector plate with the gap of not more than 0.05-0.1mm (h7 / g6 ), easy to replace, repair.
7. Whether to adopt the J-type thermocouple and temperature table correspond.
8. Whether collecting plates at both ends of the plug material has kept the dead, in order to avoid decomposition of deposit material, tighten the screws and plug welding, sealing.
9. Each group of the heating element is controlled with a thermocouple, the thermocouple is arranged reasonable position to precisely control the temperature.
10. Hot runner nozzle in contact with the heating coil is tight, revealing a small upper and lower ends, cold material length, the nozzle according to drawings, to avoid empty sections at both ends of the upper and lower, plastic closures segment, positioning segment dimensions meet the design requirements.
11. Nozzle spout part size is less than ¢ 5mm, so as to avoid feeding the big contraction caused by the product surface.
12. Are nozzle head with a piece of copper or aluminum as seals, seal height above the Omo 0.5mm. Head nozzle inlet manifold diameter greater than the size of the discharge port plate, so as to avoid prolonged heat collecting plate and nozzle dislocation occurs overflow.
13. Due to the heat longer, collector plates if a reliable positioning, at least two locating pins, or add screws.
14. Is there a template manifold plate between heat pad insulation,asbestos available mesh, stainless steel and so on.
15. Main gate sets just below the top of each heat pad nozzle whether, in order to ensure sealing, heat transfer pad made of stainless steel or bad use of insulated ceramic washers.
16. Such as hot nozzle protruding upper roof surface of the pad, with the exception should be higher than the roof than 0.3mm, these pads is leakage in the injection molding machine positioning laps.
17. Tableset temperature and actual temperature display temperature erroris less than± 2 ℃,and Temprature control is sensitive
18. Whether the cavity with hot runner nozzle mounting hole punch through.
19. Hot runner wiring is tied and covered with a plate, so as not to power off the assembly line pressure.
20. If two same size socket,if there is clearly marked,in order to avoid the wrong plug.
21. Control cable is sheathed,no damage
22. Thermostat cabinet structure is reliable,no loose screws.
Test items: number,standard,qualified,unacceptable,acceptable, Hot runner systems
23. Socket mounted on electric wood,whether exceed the maximum size of the template.
24. Whether pin-point nozzle tip is extended before the surface of front mould.
25. Whether wires are leaking out of the mold.
26. Manifold plate or template for all local and wire contact is rounded transition, in order to avoid damaging the cord.
27. Before the template assembly,all the line is no short circuit.
28. All the wires are correct connection,insulation