The surface coating of the paint bucket and the influencing factors of its strength

The paint bucket refers to a container for holding paint, with a layer of anti-rust packaging paint on the surface. Such barrels generally have pressure bearing requirements and rust prevention requirements for the container. Because paint is a kind of paint, logically, paint buckets are also a kind of paint buckets. In general, when holding some paints that are not so corrosive, plastic paint buckets and metal paint buckets can be mixed.

Paint buckets have excellent high strength, corrosion resistance, safety and reliability, etc., and are widely used in chemical, petroleum, paint, light industry, food and other industries. It has become an indispensable bridge between commodity production and consumption, and plays a very important role in protecting commodity value and use value.

Surface coating is an important process to ensure the surface quality of the paint bucket and enhance the corrosion resistance of the paint bucket. The choice of paint packaging additives The choice of various types and dosages of additives is extremely important, because the additives must ensure that the coating film is fully leveled within a limited time during spraying, avoiding floating colors and flowers, etc., and also make the paint film The air bubbles in the film can be quickly discharged without leaving any defects on the surface of the paint film.

On the one hand, by adding a variety of additives to eliminate various defects in the coating construction; on the other hand, the addition of additives can only improve or at least not reduce the various properties of the coating, and ensure that the physical and chemical system of the coating performance is not generated. influences. Appropriate amount of curing accelerator can be added during construction in autumn and winter to meet the requirements of lower temperature and faster curing.

The strength of the paint bucket is related to many factors. The first is the relative humidity in the bucket. The humidity will affect the drying speed of the plastic bucket. This must be better understood. Therefore, the relative humidity of plastic barrels is also an important factor affecting product quality. When the relative humidity in the barrel is low, the water vapor pressure difference between the surface and the dryer is large, and the drying speed is fast, and vice versa.

In the case of high melt pressure, it promotes good plasticization and uniform coloring of the mixture. Because it is a blend of high-density polyethylene and low-density polyethylene, and the coloring reverse field, the crystal points and cloud-like patterns on the parison are reduced . So we will increase the screw speed to increase the melt pressure.

For paint buckets, it is very important to master the temperature. This is because temperature has a significant effect on the performance of plastic extrusion and parison. Increasing the temperature of the extruder can reduce the viscosity of the melt, improve the fluidity of the melt, reduce power consumption, and increase the screw speed without affecting the plastic performance. Mixing and plasticizing effect. In order to achieve this goal, we can use an electronic temperature controller to stabilize the process temperature and save energy.