4results about How to "Good self-lubricating properties" patented technology

The invention relates to the technical field of high polymer materials, in particular to a wear-resistant nylon sleeve and a preparation method thereof.The wear-resistant nylon sleeve is prepared from, by weight, 90-100 parts of nylon 6, 6-8 parts of self-lubricating microcapsules, 1-1.2 parts of carbon black, 2-3 parts of flame retardant and 0.8-1 part of antioxidant; according to the self-lubricating nylon sleeve, the self-lubricating microcapsules are added into the nylon sleeve, and the self-lubricating microcapsules are prevented from being damaged in the preparation process of the nylon sleeve through centrifugal reaction and modification of the microcapsule wall material, and meanwhile, the nylon sleeve has a good self-lubricating property and keeps good wear resistance in the long-term use process.

This invention relates to the field of electrical insulation materials and special polymer coatings, specifically to a rare earth-modified wear-resistant enameled wire insulation coating and its preparation method; it comprises an insulating resin base, a rare earth-organic hybrid modifier, and an organic solvent; the coating uses a complex sol formed by the coordination of polysiloxane containing multidentate chelate ligands and reactive end groups with rare earth ions as the modifier; its core is to utilize the multidentate chelate ligands to covalently connect the polysiloxane skeleton and to firmly bind rare earth ions through coordination bonds, thereby constructing a stable and uniform molecular-level dispersed network structure; this invention abandons the traditional inorganic particle physical blending method, effectively suppressing the kinetic mismatch and gravity sedimentation defects caused by high-density rare earth phases, so that the liquid coating maintains excellent compatibility and uniformity during long-term storage.

This invention relates to the field of pumping unit technology, and discloses a pumping unit support bearing housing assembly with a polytetrafluoroethylene (PTFE) sliding bearing, and a pumping unit itself. The pumping unit support bearing housing assembly includes: a main shaft connected to a housing body via a connector; a housing body for connecting a walking beam; and a sliding bearing assembly including a bushing and a sliding bearing body. The sliding bearing body is made of a PTFE material, is installed inside the bushing, connected to the main shaft, and is rotatable relative to the main shaft. The bushing connects to the support. The sliding bearing body is rotatable relative to the bushing to change the relative positional relationship between the sliding bearing body and the bushing. The pumping unit includes a walking beam, a support, and the pumping unit support bearing housing assembly. The bushing is connected to the support, and the walking beam is connected to the housing body. This invention, through the above technical solution, addresses the technical problem of the need for regular maintenance and replacement of pumping unit support bearing housings in related technologies.

The utility model relates to a kind of polyurethane ball pin assembly, belong to ball pin assembly technical field.The polyurethane ball pin assembly includes: installation shell and ball pin;Protective mechanism, the protective mechanism includes the outer sleeve fixedly connected in the inner wall of installation shell, the inner wall of the outer sleeve is fixedly connected with anti-tear sleeve, the inner wall of the anti-tear sleeve is fixedly connected with inner sleeve, the surface lower end ball of the ball pin is hinged to the inner wall of inner sleeve;Through the inner sleeve of special polyurethane component has good self-lubricating characteristics, reduce the wear between the ball head of ball pin and inner sleeve, avoid frequent grease lubrication, and then guarantee the sealing effect between ball pin and inner sleeve, to reduce the wear between ball pin and inner sleeve, guarantee the service life of ball pin assembly, through the outer sleeve of special polyurethane component, inner sleeve and reinforcing rib, the impact force received by ball pin is dispersed, guarantee the stability and durability of installation shell dynamic performance, and then improve the service life of ball pin assembly.