Dongguan plastic bucket manufacturer
The grain size of the plastic in the plastic bucket is very harmful. The relativity of optical rotation is small or no optical rotation. The surface energy of the plastic bucket is low, which will harm the adhesion of all coatings. Because plastics are not conductive conductors and insulators in China, we cannot immediately carry out different coating on the surface of plastic barrels according to a set of electroplating process technical processing process design standards. Therefore, before the problem of information resource management on the surface of plastic barrels, it should be solved before social development, In order to better improve the bonding property of commercial coating and provide a conductive layer with excellent bonding property in coating solution. The front solution includes plastic product surface degreasing, vegetable oil cleaning, film remover, and active plastic product surface to improve coating adhesion. (1) Degrease the plastic bucket. Degreasing similar to metal manufacturing, and degreasing of plastic products can be cleaned with solvent or partial alkaline solution containing surface surfactant. Solvent degreasing is suitable for cleaning paraffin, liquid paraffin, body fat and other organic chemical stains on the surface. Commonly used solvents can not dissolve, solubilize or crack plastic products, with low melting point, easy volatilization, no toxicity, and nonflammable. Meta alkali solution is suitable for degreasing of alkali resistant plastic products. Because there are anhydrous aluminum chloride, meta alkali salt and chemical substances that carry out specific scientific research on different surfaces in this kind of standard solution. The common surface specific compounds are OP series products, namely alkyl carboxylic acid polyoxyethylene ether, which is not easy to develop into a foam plastic and does not remain on the surface of plastic products. (2) The activity of the surface of the plastic bucket. Some plastic barrels, such as polyethylene goods and ABS goods, can also be immediately coated on the surface of plastic barrels without organic chemical air oxidation. In order to better obtain high-quality coating coverage, air oxidation solution after degreasing can also be carried out for ABS products. Thin chromic acid solution diluent can be used. The typical solution secret is 420 g/L chromic acid and 200 ml/L hydrochloric acid (1.83%). The typical treatment is 65 ℃/five minutes and ten minutes, cleaning and drying. The advantages of chromic acid etching processing: the symmetrical solution of various and complicated plastic products; Defects of chromic acid etching process: actual operation risk.
Dongguan plastic bucket manufacturer
What are the functions of resin in plastic bucket production? In the same kind of plastics, when the filler content is high or the inorganic filler in the filler is increased, the shrinkage rate is small. The mold structure that is conducive to improving the molding pressure, increasing the plastic mold filling fluidity and making the plastic part dense can reduce the shrinkage rate of the plastic part. Any process factor that can make the plastic part dense and overflow the low molecular volatile matter before molding can reduce the shrinkage of the plastic part, such as preheating and pressurizing the phenolic plastic before molding. After heating, compacting and mixing in the barrel of the injection machine, the process of transforming loose powder or granular solid into continuous homogenized melt is called plasticization. Homogenization includes four aspects, that is, after the material is plasticized, the composition, density, viscosity and temperature distribution in the melt must be uniform. Metering refers to the preparation work that can ensure the injection machine to discharge the plasticized melt out of the barrel at a constant temperature, pressure and quantity through the plunger or screw, which needs the injection machine to control the plunger or screw during the plasticizing process.
Dongguan plastic bucket manufacturer
The advantages of chemical barrel! Chemical barrel is mainly composed of extrusion and blow molding, so it is generally called blow molding in the industry. The products produced by this process are made of plastic particles that pass through the hopper mouth, melt them through the heating of the cylinder in the three-stage heating zone, form them through the filter screen, clamp the parison into the petal closing mold to be blown when it is hot, blow it with compressed air, reach the mold cavity body, and open the petal closing mold after cooling and shaping under the condition of maintaining a certain time and air pressure, Then you can see the chemical barrel products. The volume of the oil tank of the chemical drum is too small, the heat dissipation area is not enough, and the capacity of the cooling device is too small. The high temperature of the climate and operating environment causes the rise of the oil temperature. The viscosity of the selected oil is improper. The viscosity is large, and the resistance of viscosity is large. If the viscosity is too small, the leakage will increase. Both conditions can generate heat and temperature rise
Dongguan plastic bucket manufacturer
The plastic bucket will leak after a long time of use. If we find a small hole after inspection, we can use adhesive to repair it. If the hole is relatively large, this method is not feasible. At this time, we can find some special tools for plastic welding to repair. Or use some suitable plastic buckets to weld to the leaking place. The above methods are aimed at the non serious water leakage phenomenon, so these methods are relatively simple and not applicable to those with serious water leakage. If it is a very serious water leakage, even if the welding method is used, it will work for a while, but it will still leak after a period of use. In this case, we recommend that you use a new plastic bucket to avoid serious water leakage. In addition, to prevent people from using plastic buckets, In the process of use, everyone should pay attention to the maintenance of the plastic bucket. Do not break it in use, which will shorten the service life of the plastic bucket.
Dongguan plastic bucket manufacturer
The main features of the chemical plastic bucket are as follows: the product color is bright and round: the imported food grade color masterbatch is used to make the product dyed evenly and the appearance more bright and round; 2. The wall thickness of the whole barrel is uniform and symmetrical: 360 points of wall thickness control skills make the wall thickness of each barrel very uniform; 3. The appearance of the product is clean and smooth: people rely on clothes and horses rely on saddles - each one has a specialist to recheck to ensure that there are no black spots, strains, ribbons, deformation, etc. on the surface of the barrel, so as to improve the beauty; 4. Humanized planning of the whole barrel: each barrel shape fully considers the humanization at the beginning of the planning, making the products more comfortable to carry and more convenient to pour; 5. Diversified sealing methods: aluminum foil induction seal, inner plug seal, chemical foaming seal ring seal, WAKE silicone seal, EPE seal; 6. Excellent chemical stability and anti drop test: ensure the safety of product transportation, especially the transportation of hazardous chemicals; 7. High beauty of the can body: high cost performance and strict control of concave convex deformation, which conforms to the beauty of international review; 8. The first article test of the batch includes: high temperature stacking test, hydraulic leakage test, air tightness test and drop test.
Dongguan plastic bucket manufacturer
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.
