3results about How to "Help maintain" patented technology

A casting coating sagging property tester comprises a base, a placing piece is arranged on the base, a sample is arranged on the placing piece, and a scraping piece is movably arranged on the placing piece. When the sagging property of the casting coating is tested, a standard sample pressing template is provided, the blade coating surface of the molding sand casting template is ensured to be flat and compact in a pressing and scraping manner before casting, and the molding sand casting template can be protected through the provided mold, so that the service life of the molding sand casting template is prolonged, and the service life of the molding sand casting template is prolonged. And the problem of slag falling or damage of the molding sand casting template in the blade coating process is avoided, so that the sagging property test is not influenced. Wherein the dropped molding sand slag is doped in the coating due to the occurrence of the slag dropping problem, so that the uniformity of the blade coating thickness of the casting coating is influenced.

This utility model discloses a plate and frame air filter in the field of filters, comprising a housing with a sealed chamber, and air inlets and outlets communicating with the chamber on both sides of the housing. Several filter components are spaced apart along the airflow direction inside the housing and fixed by slots on the inner wall of the housing. Each filter component consists of two hinged folded panels. Mounting grooves are opened on opposite ends of the panels, in which two mesh sheets and a filter layer are installed. Air holes communicating with the mounting grooves are opened on the other ends of the panels. The housing consists of a top cover and a bottom cover. A longitudinal sliding groove is provided circumferentially on the inner wall of the bottom cover, and a locking hole is opened at the end. A corresponding locking strip is provided on the top cover, the protrusion of which can slide into the sliding groove and cooperate with the locking hole for fixation. This filter, through the sliding locking structure of the top cover and bottom cover, allows for convenient disassembly and assembly of the housing, facilitating the replacement and maintenance of the filter components. The hinged design of the filter components allows for quick replacement of the internal mesh sheets and filter layers, improving the filtration effect, and combining the advantages of compact structure and convenient maintenance.

This invention belongs to the field of clutch manufacturing technology and aims to solve the problem that the friction performance of existing heavy-duty clutches gradually decreases over time, thus affecting their transmission smoothness and shortening their service life. To this end, this invention provides a method for preparing a surface-textured clutch plate. The method includes: preparing a mixed powder comprising metal matrix powder, solid lubricant powder, reinforcing phase powder, and a forming agent, and mixing them uniformly in a predetermined ratio; loading the mixed powder into a mold for cold pressing to obtain a green blank with a predetermined geometric structure; sintering the green blank under a protective atmosphere with stepped heating; processing microtextures on the friction surface of the sintered part using an ultrasonic impact device; and cleaning the surface of the ultrasonically impacted workpiece. This invention can optimize the friction performance of the clutch, enabling it to maintain high friction characteristics for a long time and preventing a rapid reduction in the clutch's service life.