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Glass fiber chopped strand mat not uniform
Writer:admin    Released:2018-08-31 17:11:24    Type:【L】【M】【S
The unevenness of glass fiber chopped felt is mainly caused by the spool in the process of production and the failure of control in the process of sedimentation dispersion.Production of short cut felt enterprises more or less will appear in this process non-uniform phenomenon!The analysis of this phenomenon has the following reasons:1. Yarn, yarn quality is not optimistic. The yarn purchased is thicker, with parallel bars and uneven thickness.This is due to yarn production.In the case of uneven yarn, after the short cut settlement, the same unit area of the blanket will appear a certain number of holes and non-uniform phenomenon.2. For winding, thread ends should be inserted into short cutting machine holes while dozens of threads should be inserted into dozens of short cutting machine holes.Strictly speaking, a short cutting machine has holes in one strand of yarn, but in part of the shift workers' chart, several strands of thread have holes in a short cutting machine at the same time, resulting in some machine holes without yarn, while some machine holes have more yarn, resulting in uneven distribution of sedimentation.3. The temperature and humidity of the construction environment are too low, and too high humidity will be unfavorable for the yarn dispersion.For the above two situations, the following three methods can be adopted:1. It is required that the yarn should be uniform in thickness and strength, and the yarn should be of moderate hardness, so that the yarn can be evenly distributed in the process of short cut and settlement.The quality of yarn can directly affect the evenness and quality of short cut felt. Therefore, selection of high-quality glass fiber yarn is the prerequisite for the production of high quality short cut felt.2. Winding yarn, which is strictly required to have one thread at a time, allows even settlement of the short-cut yarn.This requires construction workers to be strictly responsible for the operation, and there can be no slack.If strict accordance with the requirements of the product uniformity will be greatly improved.3. If non-uniformity still occurs after the above two methods are strictly implemented, the damper can be adjusted, which requires the random strain, where the thickness should be adjusted, and once adjusted uniformly, the damper need not be changed frequently.4. Temperature and humidity of the construction environment shall be controlled according to the actual situation to avoid the impact of environment and humidity on the production of short cut felt.
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