Fluorosilicone rubber products easy to tear the reasons and solutions

Causes, may be too thick burrs, trimming tear, or mold with too tight, out of the mold when the burrs are stuck in the mold, easy to tear from the product and before the burrs. Open, mold force is not uniform, easy to tear the product. Sometimes the mold cavity processing is rough, or the rubber material sticking to the mold, vulcanization is completed out of the mold, resulting in mold release difficulties, easy to tear the product. In addition, the vulcanization temperature is too high, will also make the product become brittle, easy to tear. For the above anomalies, can be solved from the following aspects: mold processing accuracy to master the cavity roughness Ra less than 0.8, with the gap should not be too large, vulcanization temperature control between 170 degrees left for good, while the rubber weighing to be accurate.