The plastic guide rail of CNC lathe is a kind of plastic soft belt with the same static and dynamic conflict coefficient on the sliding guide rail matching with the bed guide rail, which is wear-resistant and vibration absorbing. Maybe the plastic guide rail is made by injection molding between the fixed and dynamic guide rails. This kind of plastic guide rail has excellent conflict characteristics, wear resistance and vibration absorption, so it is commonly used in CNC lathe.
The plastic soft belt is based on polytetrafluoroethylene, with bronze powder, molybdenum disulfide, graphite and other fillers added, sintered and made into a soft belt. China has already made a TSF soft belt for guide rail, and a matching DJ adhesive. The process of using the guide rail soft belt is simple, as long as the surface roughness of the guide rail paste surface is semi-finished to ra1.6-3.2um, after cleaning the paste surface, the adhesive is used for bonding, after pressure curing, and then the finish machining can be carried out. Because this kind of guide rail soft belt adopts the bonding method, it is usually called “stick plastic guide rail”.
The raw materials for guide rail injection molding are epoxy resin and molybdenum disulfide as the matrix, plasticizer is added, and the mixture is a two-component plastic with paste shape as one component and curing agent as another component. The Chinese brand is hNT. The injection molding process of the guide rail is simple. After adjusting the mutual position accuracy between the constant guide rail and the movable guide rail, the two-component plastic is injected. After curing, the fixed and movable guide rails are separated into plastic guide rails. The plastic guide rails manufactured in this way are customarily called “injection molding guide rails”
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