41results about How to "Has self-lubricating properties" patented technology

The invention discloses a method for making large tonnage testing machine mental extending rail plate, which comprises: choosing materials, member forging, annealing, first cutting process, normalizing process, fine cutting process, heat treatment quenching, low temperature tempering, abrading, desert spraying, phosphate processing; heat treatment quenching, adding chemical process after low temperature tempering, wherein the chemical process comprises: cleaning the mental extending rail plate at least two times, drying at low temperature 150 DEG C, taking the work piece into the oven, adding catalyst into the oven, lifting the temperature from 60 DEG C to 550 DEG C, heat preserving 14-16 hours; Making the catalyst into gas type decomposition, taking out the work piece self-cooled.

The invention relates to a continuous lubricating crystallizer for aluminum alloy semi-continuous casting. The inner wall of the crystallizer is inlaid with a graphite lining, and an independent oil chamber is arranged in the upper cover. The graphite lining has a vertically symmetrical structure and taper. The crystallizer body There are two separate upper and lower water chambers, the upper water chamber and the lower water chamber respectively have independent water inlets, the upper water chamber and the lower water chamber are respectively equipped with water baffles, and a row of water spray holes is set at the bottom of the upper water chamber. A row of water spray holes is also arranged at the bottom of the lower water chamber, and the angles of the water spray holes of the upper water chamber and the angles of the water spray holes of the lower water chamber are inconsistent in a staggered shape. During casting, the oil seeps into the graphite lining through the oil chamber to form a continuous oil film, which not only increases the lubrication effect of graphite, but also plays a role of heat insulation and reduces the primary cooling of the ingot. Two independent water chambers realize single or double water chambers. At the same time, water is supplied to increase the secondary cooling effect on the premise of ensuring that no thermal cracks occur in the initial stage of the aluminum alloy ingot, and realize a low liquid level inside the crystallizer, which significantly improves the surface quality of the ingot.

The invention provides an injection molding material for preparation of a high-thermal conductivity oil-free self-lubricating rotating shuttle and an injection molding technology therefor. The injection molding material comprises, by mass, 80 to 90 parts of special engineering plastic, 5 to 15 parts of copper powder, 2 to 8 parts of carbon fibers, 2 to 8 parts of graphite, and 1 to 5 parts of MoS2. The high-thermal conductivity oil-free self-lubricating rotating shuttle prepared from the injection molding material does not need lubricating oil so that a rotating shuttle structure is greatly simplified; a sewing machine cost is reduced; the possibility of pollution produced by the lubricating oil on a fabric is minimized; and fabric waste caused by lubricating oil pollution is effectively prevented.