Manufacturing process of Nylon sheathed wire

Due to the nature of nylon material have different from ordinary plastic, therefore we put forward some unique technical requirements in the extrusion process.
Drying process. Because the nylon material is medium polarity, easy absorption of moisture, according to Nylon sheathed wire material manufacturer, when the nylon material moisture content exceeds 0.3%, cannot squeeze, found in the actual production process, the nylon is expected to be affected with damp be affected with damp, extrusion sheath will blister, such as foam, granular material or damaged. Nylon material itself with vacuum bag vacuum packaging, not broken packages can be directly put into use, but such as transportation damage, sealed or open package are not finished in time, etc., must be dried before use.

So be affected with damp be affected with damp dry nylon material should be done before using. Had better use of pumping air into vacuum state, rotating barrel heating to remove moisture, each drying amount shall not exceed 3/5 dryer volume. Such as the capacity is too big, inside the dryer materials difficult to rotate, cause uneven heating, short time water is difficult to remove all, time is long can make the yellow part material oxidation, unable to meet the requirements of sending out surface. Vacuum degree of vacuum should reach more than 0.05 MPa, or it will be hard to remove moisture, if by steam heating, to control the heating temperature, amount of water vapor temperature appropriate for 80 + / - 50 ℃, the heating temperature is too high the nylon wire material oxidation and become yellow.