Characteristics of melt discharge pumps for EVA hot melt adhesives

ZB-F series melt discharge pump is specially used for conveying materials with high viscosity and high temperature. Used in PUR hot melt adhesive, PSA pressure sensitive adhesive, EVA hot melt adhesive, adhesive, glue, hot melt adhesive, resin, epoxy resin and other industries. Aiming at the high viscosity and high temperature of hot melt materials, we adopt the following four measures to ensure the normal operation of the pump design and selection.

1, melt discharge pump with special clearance, that is, increase the clearance of the pump body thermal expansion thermal compensation, to ensure that the thermal expansion of the production of deformation has enough clearance space to ensure the normal operation of the pump. If the gap is not used, high-temperature thermal expansion will make the pump is held, jammed, resulting in the pump can not operate normally, delaying normal production.

EVA melt pump

1, melt discharge pump with special clearance, that is, increase the clearance of the pump body thermal expansion thermal compensation, to ensure that the thermal expansion of the production of deformation has enough clearance space to ensure the normal operation of the pump. If the gap is not used, high-temperature thermal expansion will make the pump is held, jammed, resulting in the pump can not operate normally, delaying normal production.

3、Melt discharge pump adopts frequency conversion regulation to adjust the flow rate and speed. Conveying hot melt adhesive when the material viscosity is large, to adjust the low speed. Conveying solvent, material solvent thin, to adjust the high speed, increase the flow to compensate for the solvent thin pump leakage, so as to ensure that the pumping solvent flow enough.

melt gear pump

4, melt discharge pumps are equipped with a special mold (screen changer), used to filter out the hot melt adhesive, pipeline impurities, and some of the large components of the large pieces of hot melt adhesive is not enough homogeneous. So that the hot melt composition properties of the discharge is more stable, the product performance is more excellent.

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