Vær oppmerksom når sprøytestøpemaskinen slås av

Hvissprøytestøping maskin is suspended, the remaining plastic must be sprayed out or let the plastic pass through the sprøytestøping maskin to clean the remaining plastic in the injection cylinder or barrel. In case of plastic fading, the number of blow-outs will increase. For minor repairs; the heater of the injection cylinder must be adjusted to the maximum value, such as 150°C, to minimize the possibility of thermal decomposition.

Before injecting thermally stable plastics (such as PS or PE), if you have shut down for one night in advance, you only need to turn off the sliding plate at the bottom of the hopper and the heater of the injection cylinder (only the heater of the nozzle is turned on), and the injection cylinder is blown out clean. After the nozzle is completely cleaned, cool the barrel as high as possible. After the sprøytestøping maskin has cooled down, turn off all equipment. The sprøytestøping maskiner helt klar til å varme opp igjen.
Hvistemperature of the injection cylinder or barrel is high, only slightly modify the above steps to prevent the resin from being decomposed by heat. For example, turn off the heater of the injection cylinder (only turn on the heater of the nozzle), or cool the barrel as high as possible, during which the remaining resin is continuously sprayed out. Close the slide plate at the bottom of the hopper, and try to spray the oblique rubber in the barrel again. If no more plastic is sprayed, the equipment can be closed for the next use.

Hvisplastic decomposes or burns in the sprøytestøping maskin, it will eventually change color, making the finished product waste. In this case, the sprøytestøping maskinmå slås helt av og sprayes rent. Den forebyggende metoden er å bruke en plast med høyere termisk stabilitet for å sprenge ut den varmefølsomme harpiksen slik at den tåler påfølgende oppvarming.
Some plastics (such as POM, PVC) are easy to decompose. Hvismachine stops suddenly during injection molding, the heater of the nozzle should be turned on before the injection is continued. Only when the plastic has the nozzle melted, can the heater of the injection cylinder be turned on. The temperature of the shooting cylinder or barrel should be adjusted to about 140°C. Then raise the temperature to the processing temperature, and spray the remaining plastic as soon as possible. The sprayed plastic must be put into cold water. If you want to change other plastics, use PS or PE natural, non-fireproof grades as the cleaning agent; if the remaining material is not completely sprayed, please do not mix POM with PVC, or mix them one after another.

Før du stopper maskinen eller bytter til en annen plasttype, må du kontrollere at trinnene som er utført er riktige. Materialleverandøren har allerede skrevet ut og utarbeidet et hefte med tilstrekkelig informasjon. Les den nøye før bruk for å forstå "standard nedstengingsprosedyre" som kreves for hver plast. Brosjyren skal plasseres ved siden avsprøytestøping maskinslik at operatøren kan lese den når som helst.