CPU coloring   Adding coloring agent to polyurethane cast elastomer can make colorful products. In addition to giving people intuitive enjoyment, it can also play a role in shielding the darkening of color quality caused by the use of oligomer polyols and aromatic diisocyanates. The colorant can be...

Process selection of different polyurethane and metal bonding   To make the product easier to remove from the mold, a release agent is required. Be extremely careful when using release agents. Generally, it is not recommended to use silicone oil. Avoid squeezing the release agent onto the...

 In most polyurethane casting products such as rubber rollers, solid wheels, couplings, ceramic molds, liners, sieve plates, etc., the adhesion of casting polyurethane and metal is involved. Therefore, the problem of adhesion between casting polyurethane and metal must be solved in production. When bonding...

Potting and coating polyurethane products Because of its low viscosity and good fluidity, CPU can be cured at room temperature. In some areas, it gradually replaces brittle epoxy resin and low-strength silicone rubber with poor adhesion.   For example, the potting of the washing machine...

  The pressure molding method is suitable for mass production of products with stricter size requirements or the upper part is usually not flat. It is a commonly used method in the production of cast products. Inject the mixed rubber material into the mold, stay for a period of time, and close the mold...

Open casting molding polyurethane   Open casting molding method is the simplest and most commonly used molding method. In this method, the mixture of prepolymer and chain extender is poured into an open mold preheated to 80-120°C and coated with a release agent. After normal pressure vulcanization...

There are many applications of CPU as lining of pipelines and equipment, such as lining of mud conveying pipeline, polishing machine lining, water pump lining, cyclone lining, ball mill lining, etc. The processing of the lining is generally made by pouring the lining object as the outer mold. The surface in...

This method is used to manufacture thin and complex shaped products. It can also be laminated, covered and composited to manufacture reinforced materials, such as lining cloth, fibers and steel wires in the mold to manufacture reinforced sheets, pipes and various teeth. Shaped transmission belt and so...

Urethane wheel gives full play to the characteristics of urethane, such as high load-bearing capacity, wear resistance, high torsion modulus, and good adhesion to metal. Some polyurethane wheels have metal and non-metal cores in the middle, and some do not. Depending on the usage, the processing and molding method...

Polyurethane roller generally refers to a cylindrical product with a metal core in the middle and polyurethane outside. According to the purpose, it is divided into metallurgy, papermaking, textile, food processing, printing polyurethane roller, etc. Compared with ordinary rubber rollers, polyurethane rubber...

Pouring is the process of pouring the mixed liquid polyurethane into the mold. In order to ensure product quality and increase the rate of product authenticity, correct pouring methods must be used. Commonly used pouring methods include vertical pouring method, inclined pouring method, bottom injection method...

Manual batch method This method is a more commonly used method in laboratory and batch production. The commonly used oligomer polyol/TDI/MOCA system operation process is to weigh an appropriate amount of prepolymer in a container of appropriate size, heat it to 80-90°C under stirring, and place it in a...