Repair of guide rail of precision gantry milling machine: most of them are made of steel or cast iron. This kind of friction should be repaired, otherwise it will expand the scratches and even affect the use of the machine tool. During the long-term use of the friction pair, there is varying degrees of friction between the two contact surfaces, resulting in varying degrees of wear on the friction pair surface, which seriously affects the machining accuracy and production efficiency. For the repair of worn parts, it is usually necessary to paste or replace metal plates and polymer materials, which requires not only a lot of precision processing, but also manual scraping and polishing of the processing surface, with many procedures and long construction period.
Solution: Use advanced polymer metal to repair the scratch of precision gantry milling machine. It only takes a few hours to partially put it into use. Practice shows that this method is simple, time-saving, good quality and low cost. With its unique adhesion, excellent compressive strength, oil resistance and wear resistance, it provides a long-term protective layer for parts, effectively solves the problems that cannot be solved by traditional maintenance methods for large equipment that cannot be disassembled, improves equipment performance, improves the clearance between parts, ensures the normal operation of production to the maximum extent, saves a lot of time and money for customers, and provides long-term good guarantee for the normal operation of enterprise equipment.
Repair principle of precision gantry milling machine: polymer composite is a material composed of polymer, metal or ceramic ultra-fine powder, fiber, etc. It is composed of curing agent and curing accelerator. Various materials complement each other in performance and produce synergistic effect, so that the comprehensive performance of the composite is superior to the original material. It has strong adhesion, mechanical properties, chemical corrosion resistance and other properties, and is widely used in mechanical wear, pits, cracks, leakage, casting sand holes, etc. And chemical corrosion protection of various chemical storage tanks, reaction tanks and pipelines.
Maintenance process of precision gantry milling machine: drill holes at both ends are deepened to change the stress condition. Clean with absorbent cotton dipped in ketone or absolute ethanol. Evenly apply the mixture on the scratched position; The outer layer shall be thin, uniform and completely covered with the appearance to ensure a perfect bond between the metal surfaces. Then apply it to the whole repair area, press it repeatedly to ensure that it is filled to the required thickness and slightly higher than the guide rail.
In fact, the precision gantry milling machine is made of strong and tough cast iron by resin sand molding process. The casting shall be tempered twice after manual failure (once after casting and once again after rough machining) So as to eliminate the internal stress to the limit. All of them have been subject to high frequency quenching treatment, reaching the hardness (50~55 degrees) required by relevant requirements. Then it is subject to precision grinding treatment. Ensure its accuracy and prolong its service life. The inner cavity stiffeners of all castings conform to the mechanical structure. High strength, no deformation. In particular, it shows excellent stability during heavy cutting.