Dalian plastic bucket wholesale
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.
Dalian plastic bucket wholesale
There are several ways to remove the residue on the plastic packaging bucket: because the plastic packaging bucket is made of PE, after using the plastic bucket, there will be a lot of oil stains on the inner wall of the bucket, and it is also very difficult and troublesome to clean. Now, Shandong Zhongcheng Packaging Co., Ltd. will introduce the method to remove the residue of plastic chemical barrels. When we remove the residue on the chemical barrel, whether using polishing water or vinegar, we should ensure that it is soaked for a long time, so as to ensure that the residue in the barrel can be removed. Find a piece of dry cloth dipped with vinegar to cover it on the chemical plastic bucket with residue. After the impurities on the bucket are soaked, use a hard small slice to easily remove the residue of trade.
Dalian plastic bucket wholesale
What factors will affect the performance of the plastic bucket? At present, plastic buckets are common to us, and everyone will use them. The performance of plastic bucket is very advantageous. You can choose different plastic buckets according to different liquids. The production process of the seemingly simple plastic bucket is not so simple. When producing plastic buckets, the manufacturers of plastic buckets still need to pay attention to some small problems that will affect the performance of the finished plastic buckets, which will greatly reduce the sales rate of plastic buckets. 1. The blowing speed determines the performance of plastic bucket products. 2. The cold temperature time determines the performance of plastic bucket products. 3. The expansion rate determines the performance of plastic bucket products. 4. Uneven longitudinal wall thickness of plastic bucket products determines the performance of products. 5. The performance of plastic bucket products is determined by the uneven horizontal wall thickness. 6. Plasticizing temperature and time determine the performance of plastic bucket products.
Dalian plastic bucket wholesale
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.
Dalian plastic bucket wholesale
How to prevent the daily occurrence of static electricity in plastic buckets? Static electricity is always present, because we can't see it with the naked eye, so we don't know when the daily static electricity will occur. Any equipment will produce static electricity, even our daily sweaters! How can we prevent this phenomenon? Let's briefly introduce the relevant knowledge points. 1. Check whether the surface resistivity of the surface barrel is less than 1011 Ω to ensure that the surface charge dissipates in time. 2. The liquid metal tube is used for filling. Pay attention not to hang on the wall for filling, otherwise it will easily lead to brush discharge. 3. The metal pipe shall be grounded and the filling speed shall be within 1m/s. If the IBC electrostatic conductive tank is used, the metal pipe shall be bridged with the IBC metal frame and the metal frame shall be grounded. 4. For low conductivity liquid, because the surface area of the insertion tube contacting with the liquid is too small, the static charge in the liquid cannot be derived. It is not recommended to fill the low conductivity liquid. If it is necessary to use it, it can be considered to use it under the nitrogen seal condition. 5. Conclusion: Non antistatic can hold some flammable materials, but its volume is hindered. It is anti-static and can contain flammable liquid with high conductivity. Verify the anti-static capacity of the anti-static bucket.?
Dalian plastic bucket 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.
