Price of Taizhou plastic water tank
The common cooling shaping plastic barrel is the later stage of the injection molding process, starting from the freezing of the gate and ending with the demoulding of the product. 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 prevent warping and deformation. The plastic bucket produced by this method has many advantages as well as some disadvantages. If the plastic bucket manufacturer will encounter a series of flow resistance in the injection process, part of the resistance comes from the external friction of the barrel, nozzle, mold gating system and mold cavity surface wall against the melt, and the other part comes from the viscous internal friction generated inside the melt itself. In order to overcome the flow resistance, the injection machine must apply a large injection pressure to the melt through the screw or plunger. This is not a big problem, as long as you pay attention to this problem can also be avoided!
Price of Taizhou plastic water tank
The reason why the plastic bucket is not broken is that it is a high molecular organic compound? Although it is called plastic bucket, and the material is also plastic, plastic can also be divided into several kinds of plastics. For example, plastic buckets are mainly made of polyethylene, polyester and other plastics by blow molding, which are mostly used to contain glacial acetic acid, tert butyl peroxide, petroleum dangerous goods, acid and alkali corrosive drugs, etc. It has outstanding characteristics, such as non fragile, non rusting, light weight, and excellent oil resistance and strong corrosion resistance. Plastic barrel plastics can be divided into thermosetting and thermoplastic. The former can not be re described and used, while the latter can be produced repeatedly. Plastic barrels are mostly used for packaging dangerous goods, which are not fragile, rustproof, oil resistant, corrosion resistant, heat preservation and moisture proof. It is mainly used to contain dangerous goods such as glacial acetic acid, tert butyl peroxide and petroleum accumulation, which are highly corrosive drugs such as acid and alkali. Plastic buckets are folded, stacked, stored, transported, stacked and canned, which greatly saves space and data in the whole process. Light weight, cold resistance, corrosion resistance, pollution reduction, super clean, meet the requirements of medical testing.
Price of Taizhou plastic water tank
Chemical plastic bucket has good heat resistance and cold resistance, good hardness, tensile strength, electrical insulation performance and toughness, and good chemical stability. It is almost insoluble in any organic solvent at room temperature, resistant to corrosion of various acid, alkali and salt solutions, and has excellent resistance to environmental stress cracking and thermal stress cracking. Its surface hardness is high, Good dimensional stability. Chemical plastic bucket is easy to use, economical and durable. With the development of internationalization, plastic bucket has gradually become the mainstream product of liquid packaging. It can contain Class II and III dangerous goods. The liquid density for Class II dangerous goods is 1.5g/cm3, and the liquid density for Class III dangerous goods is 1.8g/cm3. The product structure is reasonable, firm and solid, which can be directly loaded and unloaded by forklift, and can be stacked and stored. The plastic container is light and not fragile. Chemical plastic buckets, plastic pots and bottles for daily food storage are mostly made of polyethylene or polypropylene, of which polyethylene is more common. PVC can also be made into containers such as barrels and basins, but like film, it cannot hold food, especially oil and wine. There are also pulse formaldehyde plastics commonly known as "Dianyu" and melamine formaldehyde plastics commonly known as "melamine". The raw materials contain formaldehyde. In the production process, if the polymerization is not good, free formaldehyde may appear in tableware. Formaldehyde is a highly toxic substance. If it is mixed with food, it will seriously damage human health. Therefore, good quality "electric jade" and "melamine" tableware and containers must be used. For inferior products, the relevant departments should strictly check to prevent them from coming out of the cage. Although polyethylene container can be used to hold food, it should also be noted when it is used to hold oil. Because polyethylene is soluble in oil, if it is stored for a long time, the color and taste of edible oil will also change, and even cannot be eaten, which is harmful to health.
Price of Taizhou plastic water tank
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.
Price of Taizhou plastic water tank
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.
