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Welcome to ANDA
The method of cleaning the extruder screw
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This article describes the operation process of the extrusion machine in details, from mixing process to extrusion process, starting process to ending process, hoping to provide constructive suggestions to relevant industry practitioners in the future.
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This article describes common UPVC profile production process in detail and the precautions that need to be paid attention to in the process, hoping to be helpful to relevant practitioners.
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For extruders used in the manufacture of thermosetting powder coatings, when changing coating resin types or color types, the machine must be cleaned to prevent interference between powder coating types and ensure the quality of the produced products. When the extruder is not cleaned thoroughly, the most obvious effect is on the color of the powder coating, which can be directly observed.
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When the extruder needs to clean the screw, it is usually because the color is changed or there are black spots after the machine is turned off. There are two common methods: one is to wash with raw materials or nozzle materials, and the other is to directly pull out the screw for polishing and cleaning.
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The most important production process in the production of plastic profiles is the control of temperature parameters. The temperature control accuracy of the extruder directly determines the product quality and mechanical properties. At the same time, the barrel temperature has a direct and obvious influence on the plasticization and mixing of raw materials.
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Different kinds of weight of materials, the need to use the corresponding precision of weighing instrument, to ensure the accuracy of weighing. Integration of materials: convenient storage weighing flow feeding, sampling check components and accuracy if it is automatic weighing system also need to monitor and review.
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