Zhoukou plastic water tank manufacturer
When the surface of the plastic bucket is labeled, the labeling surface should be flat. A "frame" can be designed on the surface of the plastic bottle, so that the label can be positioned accurately without movement. During blow molding, the first contact part of parison inflation always tends to be the first hardened part. Therefore, the wall thickness of this part is also larger. The edge and corner are the parts where parison inflation contacts, and the wall thickness of this part is small. Therefore, the edges and corners of plastic bottles should be designed as rounded corners. The rigidity and bending resistance of plastic bottles can be improved by changing the surface shape of the plastic bottle, such as making the middle of the plastic bottle relatively thin, and increasing the circumferential grooves or ribs on the surface of the plastic bottle. The longitudinal grooves or stiffeners can eliminate the deviation, sagging or deformation of plastic bottles under long-term load. The printing surface of the plastic bucket is where consumers focus their attention. The printing surface shall be flat and continuous; If the plastic bottle contains a handle, a groove, a reinforcing rib and other structures, attention should be paid not to inconvenience the printing operation during the design. The elliptical plastic bottle has high rigidity, but the manufacturing cost of the mold is high. Therefore, in order to ensure the rigidity of the plastic bottle, in addition to selecting materials with high rigidity, it is also necessary to enhance the rigidity and load resistance strength of the plastic bottle through the shape design of the plastic bottle.
Zhoukou plastic water tank manufacturer
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.
Zhoukou plastic water tank manufacturer
Plastic barrel modification equipment What are the processing equipment for plastics? Plastic barrel modification equipment Plastic modification involves four aspects: raw and auxiliary materials used, processing equipment, modification technology and effect, and specific application. According to the plastic modification process, the processing equipment can generally be divided into four categories: primary mixing, melt mixing, pelletizing and drying. The corresponding equipment is introduced as follows: primary mixing equipment. Primary mixing equipment refers to the equipment used for mixing materials in the non melting state. The equipment used for primary mixing is almost intermittent. There are many types of primary mixing equipment, such as rotary drum mixer, double cone mixer, spiral belt mixer, Z-shaped kneader high-speed mixer, etc., but at present, the two types of widely used plastic mixing processes are Z-shaped kneader and high-speed mixer. Z-shaped kneader Z-shaped kneader, also called double arm kneader, is mainly composed of rotor, mixing chamber and driving device. The rotor is installed in the mixing chamber. The mixing chamber is a steel trough with a W-shaped or saddle shaped bottom. The upper part is provided with a cover and a feeding port, and the lower part is generally provided with a discharge port. The steel trough is jacket type, and heating and cooling medium can be fed into it. Some high-precision mixing chambers are also equipped with vacuum devices, which can discharge moisture and volatile matter during the mixing process. There are two types of rotor installation in the mixing chamber, one is tangential installation and the other is intersecting installation. In tangential installation, the movement traces of the outer edges of the two rotors are tangent; In the intersecting installation, the movement traces of the outer edges of the two rotors are intersecting. During tangential installation, the rotor can rotate in the same direction or in different directions, and the speed ratio between rotors is 1.5:1, 2:1 or 3:1. The rotor installed in intersecting mode can only rotate at the same speed because the outer edge movement traces intersect. The clearance between the outer edge of the rotor installed in an intersecting manner and the wall of the mixing chamber is very small, generally about 1mm. In such a small gap, materials will be strongly sheared and squeezed. This effect can be physically modified by filling and blending.
Zhoukou plastic water tank manufacturer
The analysis and inspection of the quality of the molding raw materials shall be based on the requirements of the process characteristics of the injection molding raw materials. The water content, fineness, impurities, uniformity, color and luster of the raw materials shall be inspected, and the fluidity, thermal stability, shrinkage and other indicators shall be tested. If problems occur in the inspection, measures shall be taken in time to solve them. Preheating and drying: For plastics with strong moisture absorption, such as polycarbonate, ABS, nylon, etc., before molding, according to the moisture content requirements allowed by the molding process, fully preheat and dry them to remove excessive volatile matter and moisture in the materials, so as to prevent bubbles and silver filaments in the molded plastic parts, and also to avoid water degradation during injection. In injection molding production, in order to make the plastic parts easier to come out of the mold, some also need to coat a layer of release agent on the mold cavity or mold core. The commonly used release agents are silicone oil, zinc stearate, liquid paraffin, etc. For soft products or transparent products containing rubber, it is not recommended to use release agent for demoulding, otherwise the transparency of the products will be affected. In production, if it is necessary to change the type of plastic, change the color, change the material, or find that thermal decomposition or degradation reaction occurs in the molding process, the barrel of the injection machine should be cleaned. The barrel of plunger injection machine must be disassembled for cleaning. The spiral charging drum can be cleaned by air injection method. When the air injection method is used to clean the spiral carbon cylinder, if the molding temperature of the plastic to be replaced is lower than the molding temperature of the residue in the cylinder, first raise the temperature of the cylinder and nozzle to the molding temperature of the plastic to be replaced, cut off the power supply and add the return material of the plastic to be replaced, and then continue air injection to remove all the residue. Usually, after the plastic buckets are filled, they are stacked to reduce the storage space, which requires that the plastic buckets can also bear a certain weight.
Zhoukou plastic water tank manufacturer
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!
Zhoukou plastic water tank 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.
