PU Tire Production Precautions
1. Shore A durometer is used to measure the surface hardness of PU tire. Since the surface hardness of PU tire will change with the ambient temperature, therefore, it is necessary to set the test environment as room temperature 25℃;
2. There are fine skin lines on the surface of PU tire. Release agent needs to be sprayed during PU production. Sometimes the release agent will scale, which will cause slight changes in skin lines. The mold needs to be cleaned once a day in the production process.
3. During the PU tire foaming production process, there will be gas generation. At the same time, the mold will also produce air flow under the centrifugal rotation state. The design of exhaust will be added to the mold. The gate position and vent hole will be adjusted according to the sample proofing condition, so as to improve the appearance problems such as pores and flow marks on the PU tire appearance surface, and there will be pore marks on the position of the exhaust hole, However, the pore mark position is controlled inside the contact area with the rim, which does not affect the appearance of the whole tire.
