Quanzhou plastic water tank wholesale
Why is the chemical barrel deformed? 1. In actual use, the chemical barrel will be deformed due to the great difference in the thickness of the barrel wall. However, the machines used to make chemical barrels in China are relatively backward, and there are fewer control points for wall thickness, which results in the asymmetry of the barrel body. Therefore, when formulating the standards for chemical barrels, they are also relatively loose. In some cases, the two relatively symmetrical wall thicknesses are about 2:1. The chemical barrel with uneven wall thickness is often judged as qualified when dissecting. 2. According to relevant people, the ambient temperature is the main factor causing the deformation of plastic chemical barrel. We should control the ambient temperature of plastic chemical barrel to prevent it from deformation. The plastic chemical barrel can carry a high heat of 108 degrees, and a low heat of 70 degrees below zero. Therefore, in general, the temperature of the liquid carried by the plastic chemical barrel should be 40 degrees below zero to 60 degrees below zero. If this value range is exceeded, when the chemical plastic bucket device weighs more or the temperature is higher, protective measures should be taken for the plastic chemical bucket to avoid deformation of the plastic chemical bucket. 3. After the chemical drum is filled with liquid goods, after the lid is tightly rotated, because it is airtight, when the liquid inside is cooled, the pressure inside the drum becomes smaller, while the external pressure is larger, forming the pressure difference between the surface and the inside of the drum, causing the deformation of the chemical drum. The inspection procedure for chemical drums clearly stipulates that they should be sealed and airtight. If the liquid inside is dangerous goods, the chemical drums for Class I dangerous goods should be able to accept a pressure of 30Kpa/cm2, and the plastic drums for Class II and III dangerous goods should also be able to accept a pressure of 20Kpa/cm2.
Quanzhou plastic water tank wholesale
How to deal with cracks in the plastic bucket? Generally, in the process of manufacturing 200L plastic barrel, the materials used are basically polyethylene, polyester and other plastics, which are then processed by blow molding. In practice, we can use 200L plastic barrels to hold glacial acetic acid, petroleum dangerous goods, acid and alkali corrosive drugs, etc. In general, it has many advantages. For example, in practice, using this 200L plastic bucket is not only not easy to damage and rust, but also relatively simple and sensitive. In addition, it also has excellent oil resistance and strong corrosion resistance. Therefore, in terms of current application, we can use this plastic bucket to package dangerous goods. Its primary characteristics are non fragile, non rusting, oil resistant, corrosion resistant, thermal insulation and moisture-proof. In addition, after the materials are loaded, we can also fold, stack, store, transport, stack and can 200L plastic barrels according to the order and requirements. In this way, not only can users save a lot of space, but also can save some data. This data actually belongs to macromolecular organic compounds, which can exist in various forms, such as liquid, solid, colloid, solution, etc. The capacity of plastic bucket is different due to the different contents of plastic bucket. In addition, 200L plastic bucket can be manufactured by different processing methods. Generally, the materials used can be divided into thermosetting and thermoplastic materials. However, the former cannot be depicted from scratch, while the latter can be used repeatedly in production.
Quanzhou 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.
Quanzhou plastic water tank wholesale
Plastic barrels are the most widely used container products nowadays. Generally, plastic barrel manufacturers have a variety of processing methods. Plastic barrels are made of PE, mainly ethylene, and some propylene and hexene are used as copolymers. Then, under the action of catalyst, some polymerization processes are used to produce plastic buckets. The production methods of plastic buckets include extrusion, blow molding, injection molding, rotational molding, etc. Blow molding, extrusion molding and injection molding are commonly used. Now let's get to know. First choice, extrusion mode: extrusion mode is also called extrusion blow molding, which is a plastic molding process. Extrusion is to heat the plastic raw materials to make them appear viscous flow, then pressurize them, and then cool them through the extrusion mold. Extrusion is a method of manufacturing hollow thermoplastic parts, which is generally used for bottles, barrels, cans, boxes and other containers. The common extrusion material is high-density polyethylene. The process of extrusion process is: solid plastic plasticization, molding, and shaping. According to the physical state, the extrusion method can also be divided into dry extrusion and wet extrusion. In addition, the compression method for plastic is also different, including continuous extrusion and gap extrusion. The extrusion mode has the following advantages: continuous, high productivity, low investment, low cost, simple operation, easy process control, and uniform quality.
