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Common injection molding product defects and solutions-7 Apr 10, 2020
Weld line Causes: 1. The product design is unreasonable. 2. The injection speed is too slow. 3. Injection pressure is too low. 4. The injection time is too short. 5. The mold surface temperature is too low. 6. Insufficient exhaust. 7. The gate position is unreasonable. 8. The melt temperature is too low. Solutions: 1. Increase the material temperature. 2. Improve injection speed. 3. Increase the m...
- mold Filling
- injection molding machine
- plastic mold Filling
Common injection molding product defects and solutions-9 May 11, 2020
Injection molding products Color mixing the reason: 1. The barrel and screw are not completely cleaned when changing the mold. 2. The barrel temperature is set too low or too high. 3. Melt back pressure is too low. 4. The screw speed is too slow. Solution: 1. Make sure to clean the screw and barrel. 2. Increase or decrease the screw speed. 3. Increase or decrease screw back pressure. 4. Increase o...
- mold Filling
- injection molding machine
- plastic mold Filling
Working principle of injection molding machine May 30, 2020
The basic working principle of the injection machine can be understood as that after the plastic raw materials are uniformly plasticized in the barrel, they are injected, molded by flow, filled with pressure, and cooled to form injection products. Under the action of the screw, the granular plastic stored in the hopper continuously moves along the screw groove. Due to the comb...
Advantages of using small gate for injection molding-2 Jul 23, 2020
③Because the small gate has a small volume and fast freezing, when producing certain products, it is not necessary to wait for the entire solidification of the product after the small gate is frozen. As long as the external cured layer has sufficient strength and rigidity, the product can be demolded, thereby Shorten the molding cycle and improve production efficiency. ④In the multi-cavity unbalan...
- mold Filling
- plastic mold Filling
- injection molding machine
What is thin-wall injection Jul 23, 2020
Thin-wall injection molding technology is also called thin-wall plastic injection molding technology. There are three types of definitions: The ratio of flow length to thickness L/T, that is, the injection ratio of the flow length L from the melt into the mold to the farthest cavity of the cavity that the melt must be filled with the corresponding average wall thickness T is 100 or 150 is thin-wal...
- mold Filling
- injection molding machine
- plastic mold Filling
Injection mold gate type and selection-2 Aug 14, 2020
2.1 Unrestricted gate. Unrestricted gate is also called straight gate. Its characteristic is that the plastic melt flows directly into the cavity, the pressure loss is small, the feeding speed is fast and the molding is easier, and it is suitable for all kinds of plastics. It has the advantages of good transmission pressure, strong pressure maintaining and shrinking effect, simple and compact mold...
- mold Filling
- injection molding machine
- plastic mold Filling
Injection mold gate type and selection-3 Aug 21, 2020
2.2 Limit the gate. The cavity and the runner are connected by a channel with a short distance at one end and a small section. This channel is called a restrictive gate, which limits the thickness of the gate and rapid solidification. The main types of restriction gates are: 2.2.1 Point gate. Point gate is a round gate with extremely small cross-sectional size. The characteristics of the point gat...
- mold Filling
- injection molding machine
- plastic mold Filling
How many you know about the ultrasonic plastic welding ? Sep 21, 2020
How many you know about the ultrasonic plastic welding? Plastic welding refers to the method of heating the contact surface of two plastic parts to melt at the same time, so that they are combined into a whole connection method, only applicable to the thermoplastic joint welding, we can use electrode or not use electrode. When using the welding rod, the end face of the welding end shall be made in...
- ultrasonic welding
- ultrasonic welding machine
- welding machine

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