3results about How to "Lubricious" patented technology

The invention relates to the technical field of precision casting of turbine blades, in particular to a ceramic core for a nickel-based superalloy isometric crystal hollow turbine blade and a preparation method of the ceramic core. The ceramic core is prepared by mixing refractory powder and a paraffin-based plasticizer and then sintering the mixture at a high temperature, and the mass ratio of the refractory powder to the paraffin-based plasticizer is (75-85): (15-25); the refractory powder is composed of quartz glass powder, alumina powder and natural crystalline flake graphite, and the mass ratio of the quartz glass powder to the alumina powder to the natural crystalline flake graphite is (72-77): (20-25): (0.5-3); the paraffin-based plasticizer is prepared from refined paraffin, beewax and low-density polyethylene, and the mass ratio of the refined paraffin to the beewax to the low-density polyethylene is (40-50): (40-50): (5-10). The natural flake graphite is creatively added into the raw materials of the ceramic core, so that the flowability of slurry is improved, the high-temperature bending strength of the ceramic core is improved, and the depoling performance of the mold core is improved.

The utility model discloses an N-type TOPCon single-sided cell, which relates to the technical field of solar cells and comprises a placement box, a polycrystalline silicon layer is arranged on the bottom surface of the inner wall of the placement box, and a p-type emitter is adhered to the upper side of the polycrystalline silicon layer. According to the utility model, the polycrystalline silicon layer is made of the N-type polycrystalline silicon film and the protective layer made of the silicon nitride material, so that the uniformity of the doped polycrystalline silicon layer can be greatly improved, the overall process time is further shortened, the doped polycrystalline silicon layer is protected, the conversion efficiency of the TOPCon battery is improved, and the passivation layer made of the eva adhesive film material has high transparency and high adhesive force, so that the production efficiency of the TOPCon battery is improved. The protective layer made of the silicon nitride material has the characteristics of high hardness, lubricity, wear resistance, atomic crystal, oxidation resistance at high temperature, cold and hot impact resistance, and no fragmentation after being heated to 1000 DEG C in air; and the hardness and the service life of the battery can be ensured.

This invention provides an insulating coating for surgical blades, relating to the field of coating preparation technology. The coating, by weight, comprises the following components: 0.1-3 parts boron oxide; 0.1-1 parts zinc oxide; 2-6 parts silicon dioxide; 0.1-1 parts aluminum oxide; 0.1-1 parts calcium oxide; 0.1-1 parts magnesium oxide; 0.1-0.5 parts titanium dioxide; 0.1-0.5 parts iron oxide; 2-5 parts potassium oxide; 0.1-3 parts sodium oxide; 1-10 parts cobalt black; and 20-60 parts water. The coating of this invention possesses advantages such as good anti-adhesion, high lubricity, high hardness, and high-temperature resistance. The preparation method of this invention is simple, the materials are readily available, and the process is green and environmentally friendly.