Oil heat settling treatment method of metallurgical filter cloth

The invention discloses an oil heat settling treatment method of metallurgical filter cloth. According to the method, a paper-making felt oil heat settling machine is adopted to carry out settling treatment on the acupuncture polypropylene fiber metallurgical filter cloth. The paper-making felt oil heat settling machine comprises a hot oil roller, cloth guide rollers and rubber covered rollers, wherein the hot oil roller is a heating device and the rubber covered rollers are pressure rollers. Tension of the acupuncture polypropylene fiber metallurgical filter cloth (9) is set to be 900-1100 kg/m; inlet oil temperature of the hot oil roller (8) is 168-170 DEG C; walking speed of the acupuncture polypropylene fiber metallurgical filter cloth (9) is 3.0 m/min; walking direction is as shown in (10) and (13); and frequency of contact between the man-made identification filter cloth and the hot oil roller is 2-4 times. Through the above method, the acupuncture polypropylene fiber metallurgical filter cloth undergoes settling treatment. Then, breadth of the product is raised to 6-8 meters, and breath is raised by 100-233%. In addition, longitudinal dimension of the product is stable, and comprehensive properties such as permeation volume, porosity and the like also accord with usage requirements.