How to encapsulate the polyurethane rubber roller so that it will not be easily degummed?
Polyurethane coated products, such as polyurethane coated wheels, polyurethane coated rollers, iron core coatings, iron plate coatings, aluminum coatings, plastic nylon coatings and other products, must not only have good wear resistance, but also If it is used for a long time, it is not easy to degumming.
At the same time, it also needs oil resistance, hydrolysis resistance, weak acidity and weak alkalinity. Once the polyurethane coated roller is degummed, it can no longer be used. Therefore, the non-degumming of polyurethane coated rollers is an important quality indicator. So how to encapsulate so that the polyurethane coated roller is not easy to degummed?
Core cleaning: If it is a new rubber roller core, you need to use a detergent to clean the oil on the surface of the core. If it is an old rubber roller core, you need to remove the old rubber roller capsule and use detergent at the same time. Clean the remaining adhesive on the surface of the core.
The surface of the rubber roller core is roughened: the surface of the rubber roller core is roughened to increase the bonding area between the surface of the rubber roller core and the package. Sandblasting: The rough rubber roller core has been sandblasted. According to the material of the rubber roller core, different types of sand are selected for sandblasting. Sandblasting will make the surface of the rubber roller rough, and after polyurethane sealing, it can better bond the adhesive and the iron core.
Polyurethane coated roller vulcanization: The rubber-coated rubber roller usually needs 10-15 hours of vulcanization time. After vulcanization, the rubber-coated roller core and the rubber-coated roller are firmly bonded together to form a rubber-coated roller. Polyurethane coated roller grinding: According to the size and shape required by the customer, if the grinding surface of the rubber roller is required to be high, it is necessary to use a CNC grinder to grind the rubber roller.
After the above several processes, the polyurethane coated roller will not be easily degummed, which greatly extends the service life of the polyurethane coated roller.