Maintenance And Use Of Hollow Blow Molding Machine
Publisher： GOLDMAN Time：6/11/2021 5:58:04 PM
The hollow blow molding machine is a tubular plastic blank produced by thermoplastic resin extrusion or injection molding, which is put into the corresponding opening mold while it is hot, and compressed air is injected into the blank immediately after the mold is closed to expand the plastic blank and stick to the inner wall of the mold , Cooling and demoulding, get various tons of barrels of products. So, how to maintain the normal use of the hollow blow molding machine?
The correct maintenance of the hollow blow molding machine requires regular cleaning. Especially the cleaning of the screw and head of the hollow blow molding machine, as well as the cleaning of the machinery, raw materials, and workshop, all help to ensure the normal progress of blow molding. Blow-molded polymers contain a variety of additives, and these types of additives form by-products when they are melted. These degradation products or by-products accumulate in the head runner, which will produce streaks on the surface of the parison and affect the appearance of the product.
Before disassembling the head of the hollow blow molding machine, use an electric heater to heat it above the melting point of the plastic, then stop heating, remove the heater, and then take off the head, and take out most of the melt with a copper blade or razor. Use brass wool to clean, or use high-speed airflow to remove the melt, but this will oxidize the melt. The melt is still wiped off with brass wool, sometimes with a grinding wheel or heating.
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