1, in cleaning up PUR polyurethane hot-melt adhesive
machine, you must first make the hot melt adhesive plate away from the PUR hot melt glue barrel and PUR polyurethane hot melt adhesive glue barrel with PUR hot-melt adhesive machine, after the hot dish out should be in keeping the lift cylinder under the condition of internal pressure, cut off all the power.
2, polyurethane hot melt adhesive machine, when to take off the bucket, filling the air pressure should be from small to large pressure slowly, under no circumstances do not allow direct use of high pressure gas directly to take off the barrel, avoid the accident.
3, when the PUR polyurethane hot melt adhesive machine heating plate pressure plate and polyurethane hot melt barrels from, before more than clear in PUR hot sol gel, must through the PUR hot glue machine pressure plate on the special institutions, closing the passage between the pressure plate and the pump body, prevent solidification.
4, clean up the PUR hot melt adhesive machine heating platen, workers must wear special high temperature resistant protective clothing, with high temperature resistant gloves, do not make the skin contact with hot melt glue barrel, molten PUR hot melt adhesive and hot plate and high temperature parts, to avoid scald.
5, PUR hot melt adhesive machine, when to take off the bucket, the better way is to five gallons of hot melt adhesive in barrel filling the dry nitrogen, avoid using not dry compressed air directly, if you need filling the compressed air, it is necessary to thoroughly dry compressed air.
And check the usage of the dryer.
6, PUR polyurethane hot melt adhesive machine after the break with hot melt glue barrel must be thoroughly clean up immediately on the hot melt adhesive pressure plate of residual PUR hot melt adhesive, in cleaning up PUR hot melt adhesive machine hot glue plate, cannot use any hard tools, pressure plate, teflon coating to prevent scratches.
7, for the special structure of PUR hot melt adhesive machine pressure plate to clean up, due to the special structure of PUR hot melt adhesive machine heating plate can't clean up in a short time residual PUR polyurethane hot melt adhesive, the cleaning must be used in residual PUR polyurethane hot-melt adhesive dry nitrogen protection, shall not exceed 10 minutes, and clean up the glue that time shall not use any hard tool to clean up the PUR hot sol hot plate machine.
8, the PUR hot melt glue machine pressure plate after cleaned up, press the pressure plate shall be immediately into the new PUR hot melt adhesive in barrel, avoid long time to get the pressure plate, exposed to air.
To press the hot plate into plastic barrels, size of lifting cylinder pressure should be from small to large, may not directly use the high pressure gas, prevent accidents, pay attention to the safety of the operator.
9, the PUR hot melt glue machine press pressure plate into the plastic bucket, can be appropriate in the daub on the seal of the pressure plate do a small amount of silicone oil lubrication, lubrication, between the pressure plate and rubber barrel to protect the use of the seal ring.
10, when PUR hot melt adhesive machine heating platen press into the new polyurethane plastic barrels, should open the glue valve, complete discharge residual air in the plastic bucket, and will take the air bubbles PUR hot melt adhesive ruled out clean, avoid polyurethane hot melt adhesive with air into the pump body and the hot melt adhesive machine in the throat.
11, PUR hot melt adhesive machine pressure plate in polyurethane hot melt adhesive barrels and will air out, after locking glue valve, at this time may be appropriately increased barometric pressure in the cylinder, make the job more smoothly.
After 12, changing the PUR polyurethane hot melt adhesive, must wait for PUR hot melt adhesive machine heating at least 20 minutes before start the pump and motor, such as immediately start the pump and motor can cause polyurethane gear pump damage, reduce the service life of PUR hot melt glue machine.
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