Yantai plastic water tank wholesale
How to restore the gloss of the surface of plastic packaging barrels? First, the reason for the mold: whether the cooling system of the mold has water leakage, or whether the sealing system of the mold has been damaged due to corrosion due to long-term operation. If there is water leakage in a single direction of the mold, and the leaking water flows into the mold, causing the barrel wall to be dull, it is only necessary to replace the sealing strip to deal with the problem of water leakage in the plastic barrel. If the exhaust system of the mold is not good, which leads to excessive gas remaining in the mold during production, causing the brightness of the barrel wall to decline, then it is necessary to check the exhaust system of the repair mold. Of course, it may also be the problem of raw materials. First, understand its materials and functions, and adjust a reasonable process formula. If the sol fluidity of the material after heating is poor, the barrel wall will appear to be not bright enough. Properly add some low-pressure resins, improve the barrel temperature, and deal with other related problems.
Yantai plastic water tank wholesale
Although plastic buckets can be seen everywhere, do you know how they are packaged? What technology is there for packaging? 1. Plastic packaging barrel packaging: Fieldbus technology. The use of fieldbus technology has mainly "liberated" most of the hardware, simplifying the cumbersome device links; In the practical process of production and use, convenience and flexibility become more and more obvious; It can integrate fieldbus skills with the ERP system, so that the management can easily access and analyze operating data through the ERP system, understand the production practice and immediate situation, and monitor the operation of the workshop. Fieldbus technology is widely used in large food processing enterprises in China, which facilitates the unmanned operation of the entire production line and the seamless connection of transmission, detection and other processes. 2. Sensor plastic packaging barrel packaging technology. In the food processing and packaging machinery profession, the use of sensors is complex, and sensors are used in the monitoring of food and beverage storage tanks, filling and packaging, mixing and processing, cooling and heating, cleaning, packaging and other processes. The gap in the market for the use of this skill has become a must for many automation manufacturers. 3. Drive operated packaging barrel packaging technology. The use of transmission products in packaging machinery is mainly to adjust the main process speed and control the periodic change of motor speed in the production process. But for most packaging machinery, frequency converter is not a necessary electrical product. The application rate of frequency converter in this profession is low, and there is a large space for development in large standard machines and packaging production lines.
Yantai plastic water tank wholesale
The volume of the plastic bucket oil tank is too small, the heat dissipation area is not enough, and the cooling device has too small capacity. The high temperature of climate and operating environment causes the oil temperature to rise. The viscosity of the selected oil is not appropriate, the viscosity is large, the viscosity resistance is large, and the leakage will increase if the viscosity is too small, both of which can cause heating temperature rise. The pipeline of the plastic bucket system is too thin and too long, too much bending, and large local pressure loss and pressure loss along the way. The precision of components is not enough and the assembly quality is poor, and the mechanical friction loss between relative motions is large. The fit clearance of the mating parts is too small, or the clearance is too large after use, resulting in large internal and external leakage, resulting in large volume loss. For example, the volume efficiency of the pump is reduced, and the temperature rises quickly. The constant displacement pump oil supply system of the plastic bucket with the oil pump capacity selected according to the fast forward speed will have most of the excess flow overflowing from the overflow valve under high pressure and generate heat during operation. The unloading circuit in the system fails or the oil pump cannot unload when it stops working because no unloading circuit is set. All flow of the pump overflows under high pressure, causing overflow loss and heating, resulting in temperature rise.
Yantai plastic water tank wholesale
The forming time of the barrel has a great impact on the size of the mold! Plastic part structure The shape, size, wall thickness, presence or absence of inserts, the number and distribution of inserts have a great impact on the shrinkage. Generally speaking, plastic parts are complex in shape, small in size, thin in wall, with inserts, a large number of inserts and symmetrical distribution, and their shrinkage is small. The cooling and shaping process starts from the freezing of the gate to the demoulding of the product, which is a stage of the injection molding process. At this stage, feeding or backflow will not continue, and the plastics in the cavity will continue to cool, harden and shape. When demoulding, the plastic parts have enough rigidity to avoid warping and deformation. As the cooling process proceeds, the temperature continues to drop, and the plastic shrinkage pressure in the cavity drops to a lower value (but not necessarily equal to the outside atmospheric pressure) when the mold is opened.
Yantai plastic water tank wholesale
For chemical drums, it is very important to master the temperature. Because temperature has a significant impact on the function of plastic extrusion and parison, improving the extruder temperature can reduce the viscosity of the melt, improve the fluidity of the melt, and improve the screw speed without affecting the mixing and plasticization of plastic. To achieve this goal, we can use electronic temperature controller to make the process temperature stable and save energy significantly. It must be well understood that humidity will affect the drying rate of chemical drums. When the relative humidity in the bucket is low, the pressure difference between the surface and the water vapor in the dryer is large, and the drying speed is fast. The isolation function of chemical drums from oxygen, carbon dioxide, nitrogen and organic solvents can vary by tens or even hundreds of times, and the basic characteristics of plastic containers should be grasped. Therefore, when selecting plastic containers, it is necessary to fully understand that plastic related functional chemical barrels are generally made by molding. Different molding methods often have a great impact on the function and cost of products.
