The plastic guide rail of the CNC machining lathe is adhered to the sliding guide rail that matches the bed guide rail. The static and dynamic friction coefficients are basically the same, and the plastic soft belt is abrasion-resistant and vibration-absorbing, or it is made by injection molding between the fixed and movable guide rails. Plastic rail.
This kind of plastic guide has good friction characteristics, wear resistance and vibration absorption, so it is widely used on CNC machining lathes.
The soft plastic belt is made of polytetrafluoroethylene as a matrix, mixed with fillers such as bronze powder, molybdenum disulfide, and graphite, and sintered to form a soft belt. There are already TSF guide rail soft belts produced in China, and supporting DJs. Adhesive.
The process of using the guide rail soft belt is simple. As long as the surface of the guide rail is semi-finished to a surface roughness of Ra1.6 ~ 3.2um, after cleaning the adhesive surface, it is bonded with an adhesive, cured by pressure, and then finished. . Because this kind of guide rail soft tape adopts the bonding method, it is customarily called "plastic guide rail".
The material for rail injection molding is a two-component plastic with epoxy resin and molybdenum disulfide as the base, plasticizer added, and mixed into a paste with one component and a curing agent as another component. The domestic grade is HNT. The rail injection molding process is simple.
After adjusting the mutual position accuracy between the fixed rail and the moving rail, the two-component plastic is injected. After curing, the fixed and moving rails are separated to form a plastic rail. "Injected rails."
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