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What are the basic operating steps of an injection molding machine

1. Before starting up, prepare to check the appearance of the equipment for damage to ensure that all components are connected tightly. - Make sure that the oil levels of hydraulic oil and lubricating oil are within the normal range, and replenish them in time if they are insufficient. After cleaning the hopper, fill the corresponding model of plastic raw materials according to production requirements. Power on and Initialization-After turning on the main power switch, wait for the system to complete the self-test procedure.

2. The complete operating process of injection molding single and double parts includes a total of 10 core links from preliminary preparation to post-processing. The core is to realize the precise collaborative molding of two plastics in the single product to prepare materials and equipment: prepare two according to product requirements. Adapted plastic raw materials, check and debug the core components of the injection molding machine such as temperature control system, pressure system, and injection device in advance to confirm that the equipment can operate normally.

3. Basic operating steps of the injection molding machine: -Advance the injection table: The injection molding machine starts working, and the injection table moves forward, ready to accept the plastic melt. - Injection: After the injection table reaches the designated position, the injection system injects molten plastic into the mold cavity at high speed. - Pressure maintenance: After the injection is completed, the pressure is maintained to allow the plastic to be molded in the mold. - Pre-plasticizing: After the pressure holding stage, the molten plastic is pre-plasticized to prepare for the next injection.

The easiest way to deal with abnormal sound in injection molding pc material feeding barrel

1. The most direct solution to the abnormal sound of injection molding PC material feeding barrel needs to focus on four aspects: raw materials, barrel cleaning, screw debugging and transmission component maintenance. Check the core of the raw material problem: the purity and dryness of PC material directly affect the smoothness of feeding. If the raw material contains impurities, moisture or uneven particles, the flow will be blocked and abnormal friction will occur.

2. The problem of air lines on PC injection molding products can be solved by adjusting temperature, pressure, speed and mold exhaust. Properly increasing the temperature of the barrel will help gas escape, but the temperature should not exceed 270 ° C to avoid decomposition caused by high temperatures and affecting the properties of PC/ABS plastics.

3. Therefore, the raw materials must be thoroughly dried, usually at 120 ° C for more than 3 hours. Stress treatment is an indispensable link in the production process of PC material products. The specific method is to preheat it in an oven at 100 - 105℃ for 10 minutes, then continue to bake it at 120 - 125℃ for 30 minutes, and finally naturally cool to room temperature. Through this method, the stress caused by improper injection molding process can be effectively alleviated and stable product performance can be ensured.

How to clean screw injection molding machines when replacing raw materials

1. A variety of materials can be used inside the cleaning screw, including but not limited to plastic screw cleaners, special polymer cleaning materials, mineral oil-based cleaning agents, biodegradable cleaning agents, physical cleaning abrasives and PP materials. Plastic screw cleaning agent: This is a cleaning agent specially designed for injection molding machines, extruders and other equipment. It can effectively solve residual problems during color change and refueling process, remove carbon and coke in the screw, and is very suitable for shutdown maintenance. use.

2. After pulling out the screw, use a hot air gun and a copper scraper to clean the residual material in the screw groove. It is forbidden to use a steel brush or a hard object to scratch the surface coating of the screw; if it is a non-removable screw, continue to use the cleaning material to spray glue repeatedly 10-15 times until the material is discharged without variegated color.

3. Black spots appear on the screws of the injection molding machine. The most direct and effective cleaning method is to use professional screw cleaning materials (also known as barrel cleaning materials) for high-temperature Purge. This is currently the most mainstream and efficient solution in the injection molding industry. After understanding the problem, let's talk about how to operate it. Generally, depending on the severity of the black spot and site conditions, the following methods can be selected: Professional cleaning material method This is the preferred method.

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