Brief analysis of the common quality problems and causes of three-roll calender

In the rubber industry, there are many common quality problems and causes in the three roll calender hanging rubber,

BAOFENG MMC as a professional manufacturer of three roll calender, here, and you to share the common quality problems and reasons for analysis, hope to help you.
One of the common quality problems in the three-roll calender hanging glue, drop glue, that is, the glue layer peeled off. Analysis of the reasons, one is that the textile is not well dried, high water content. Secondly, there is oil, dust and other debris on the cloth surface. Third, the rubber is unevenly heat-refined, and the plasticity is small. Fourthly, the calendering temperature is low, the speed is fast, the roll distance is too large, etc.
The second common quality problem in the three-roller calender hanging glue, the cord fabric jumping line, bending. Analysis of the reasons, one is the uneven plasticity of the rubber. Second, the fabric roll is too loose. Third, the rollers are too much glue, the local force is too large. Fourthly, the weft thread of curtain fabric is not uniform.


Three roll calender hanging glue in the common quality problems of the third, out of the pocket, which is the phenomenon of the middle of the curtain fabric loose and tight on both sides. Analysis of the reasons, one is the uneven force of the textile, the central force is greater than the side. Secondly, the density of the textile itself is not uniform, the elongation rate is not consistent. Three roller calender hanging glue in the common quality problems of the fourth, pressure deviation, pressure bad, folding, analysis of the reasons, pressure deviation is due to the roll distance on one side of the large side of the small, incorrect delivery of cloth, roller bearing tension inconsistency caused. Pressing bad is generally caused by improper operation, such as roll distance, speed and bad control of accumulation of glue. The folding is caused by too loose rolls of matting, inconsistent speed of hanging rubber and cooling rolls.
Rubber three-roller calender hanging rubber in the common quality problems of the fifth, the surface of the pockmarked or appear small bumps. Analysis of the causes, one is the lack of heat refining of rubber, plasticity is small. Second, the heat refining is not uniform. Third, the temperature is too high to produce self-sulfur or the rubber material contains self-sulfur particles, etc.

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