Yulin plastic water tank manufacturer
Main properties and characteristics of plastic barrels ① A few plastic packaging barrels have poor high temperature resistance and become brittle under high temperature; ② Good resistance to attack and attack, will not produce serious repercussions; ③ It has good general formability and colourability, and low processing cost; ④ Good insulation and low thermal conductivity; ⑤ Good transparency and wear resistance; ⑥ Most plastic packaging barrels have poor heat resistance, high shrinkage rate and are easy to extinguish; ⑦ Poor dimensional invariance and easy deformation; ⑧ Most of the plastic packaging barrels are light in weight, chemical properties remain unchanged, and will not breed serious reverberation and rust during operation; ⑨ Plastic packaging barrels are prone to aging, which will affect the operation efficiency and price in the long run; ⑩ Some plastic packaging barrels are easily soluble in solvents, and will melt when touching certain solvents.
Yulin plastic water tank manufacturer
When wholesaling plastic buckets, you must pay attention to the choice of plastic materials! The wholesale orientation of plastic drums can only be carried out in the viscous flow state. Both chain segment orientation and whole chain orientation are thermodynamic non-equilibrium states. When the external force is released, the chain will be in a random state again due to the thermal movement of molecules, which is called solution retrieval. Only when the chain segment or molecular chain after removal is rapidly cooled to the glass transition temperature can the removal space be retained. This "frozen" orientation is only relatively stable, and it will also be slowly de oriented. As the material temperature increases, the recovery will rapidly advance ˉ The orientation of molecular chains will be produced in the melting process of plastics, such as injection and extrusion. The effect of orientation on the product is the anisotropy of properties. The strength and modulus in the orientation direction increase significantly, and the strength and modulus perpendicular to the orientation direction decrease significantly. This is because the atoms of the molecular chain in the orientation direction are bound by chemical bonds, while the force between the molecular chains perpendicular to the orientation direction is the van der Waals force.
Yulin plastic water tank manufacturer
1： Measurement of the overall height of the plastic bucket. The overall height of the plastic bucket refers to the vertical distance from the bottle mouth to the bottom of the bottle. The measurement method is to place the plastic bucket on a horizontal plane, contact one end of the vernier caliper with the extreme high point of the bottle mouth, rotate the bottle body 360 degrees, read the maximum and minimum values respectively, and compare the data with the size of the design drawing to see whether they are consistent. If the specification of the plastic bucket is 40-60ml, its height should be controlled within ± 0.5mm. 2： Measurement of the outer diameter of the plastic bucket mouth. For the measurement of this part, the method is to span the scale of the measuring tool across the center of the bottle mouth, avoid the position of the mold closing line of the bottle body, rotate the circular bottle mouth 360 degrees with the main shaft close to the thread of the mouth, measure the maximum and minimum values, and compare with the bottle design drawings. The external diameter error should be controlled within ± 0.1mm. 3： Measurement of the overall diameter of the plastic bucket. For the measurement of this part, the method is to use the measuring surface of the vernier caliper to contact the measuring position of the maximum outer diameter of the bottle body, close the vernier caliper, rotate the plastic can body 360 degrees, and read the maximum and minimum values. The error of its overall diameter should be controlled within 0. 1mm. 4： Measurement of the wall thickness of each part of the plastic barrel. For the pharmaceutical plastic barrel with a circular revolving body, cut the measuring area of the symmetrical part with a knife, so that the measuring tool can enter the detection point where each part of the bottle can be measured. Strictly measure the symmetrical part of the thickness of the plastic barrel mouth, shoulder, body, and bottle bottom, and read the maximum and minimum values, Compare with the design drawing data, and check whether the tolerance of thickness dimensions of each part of the plastic bucket is within the standard range.
Yulin plastic water tank manufacturer
First, the outer cover needs to be tightened when installing (usually with the help of external force such as wrench). After the installation of the seal ring, it should be close to the contact plane of the barrel mouth to prevent the seal ring from distorting the installation. If the temperature of the filled product is higher than 40 ℃, the cap shall be screwed and stacked after the product is cooled. When stacking, pay attention to ensure the flatness. The upper base layer with large contact area shall be aligned, and the stacking shall not be staggered to avoid deformation of the plastic bucket. The weight or specific gravity of the dangerous goods contained in the chemical barrel shall not exceed the larger weight or specific gravity of the contents that can be carried. It is not allowed to use plastic drums with low hazard class to pack dangerous goods in places where high hazard class packaging is required. If the plastic drum without vent hole is used for shipment, it will release gas during storage and transportation. The single weight or volume of dangerous goods contained in the barrel shall not exceed the high limit of the world rules for dangerous goods transportation. During loading, unloading and transportation, it is necessary to avoid falling and collision with hard and sharp objects. When loading dangerous goods, do not corrode or damage the appearance of the plastic barrel.
Yulin plastic water tank manufacturer
Next, the plastic bucket manufacturer will tell you how to prolong its service life as much as possible. As a widely used container, plastic bucket has been recognized by more people, and its use is very convenient. However, attention should be paid to how to extend its service life. Pay more attention during the storage of plastic buckets, so that they can be used longer. The chemical reaction of plastic bucket exposed to the sun is caused by many factors. First, ultraviolet radiation, the leading element of photochemical reaction, can directly cause the cracking of molecular chains. In all the light, the shorter the wavelength and the greater the energy, the faster the aging of the plastic bucket. Because rubber and plastic materials will produce free groups when absorbing light energy, and then cause and accelerate some adverse chain reactions.
Yulin plastic water tank manufacturer
Use characteristics of plastic barrels: plastic packaging barrels are mostly used for the packaging of liquid and solid products. They have good performance and quality. They are not easy to rust and break, light in weight, and have excellent oil resistance and strong corrosion resistance. It is mainly used for packaging dangerous goods that need moisture-proof, waterproof, heat insulation, pressure resistance and corrosion resistance. Its material is plastic, such as polyethylene, polyester, etc., which is made by blow molding, injection molding, blistering and roll molding. It is mostly used to contain liquid and solid articles in chemical, pesticide, medicine, food and other industries. The specifications range from 1L-25L open and closed plastic barrels, which can be used for goods storage, transportation and turnover. It will not dissolve harmful substances. PP polypropylene, PC polycarbonate and block copolymer are harmless in themselves, and their melting point is more than two hundred degrees. They will not decompose when boiled. However, many additives will be added in the molding process. In order to enhance toughening, anti-aging and anti-oxidation, they are not toxic in themselves, and the content of food grade additives is strictly required, It is also easy to volatilize. Because the tank is engraved with a capacity height, the filling height can be clearly seen through the transparent tank when filling materials in ton barrels, and the filling amount can be accurately controlled. The tank is made of first-line authentic high-density polyethylene raw materials, and the strength and toughness of the products are purchased.
