33results about How to "Low post-treatment temperature" patented technology

A preparation method for tin-based oxide nanorods includes the following steps of weighing one of rare earth nitrate, rare earth oxide, rare earth ocyhydrate or rare earth carbonate according to stoichiometric ratio of metallic elements in Sn1-xREx02-delta, weighing one of rare earth nitrate, rare earth oxide, rare earth ocyhydrate or rare earth carbonate to prepare nitric acid rare earth solution, then weighing SnC14.5H2O to be dissolved to the prepared nitric acid rare earth solution and obtaining mixed solution, then respectively weighing an appropriate amount of organic fuels, a combustion improver of ammonium nitrate and soluble chloride to be dissolved to the mixed solution; after heating the mixed solution to concentrate the solution to a state of being approximately sticky, heating in microwave mode, and initiating self-spreading burning; roasting the self-spreading burning product in the air, after cooling, washing in ultrasonic mode, filtering, removing constitution ions of the chloride, and drying at 80 DEG C. The preparation method shortens technological process, lowers preparation cost, and is simple in synthesis equipment, low in post-treatment temperature and short in time, and easy for achieving industrialized preparation.

The invention relates to a preparation method of a nonlinear optical crystal surface antireflection protective film. Starting with the sol characteristic and film layer structure on the basis of the characteristic of high tendency to deliquescence of the nonlinear optical crystal growing in a water-soluble environment, the invention provides a preparation method of a moistureproof+antireflection double-layer antireflection protective film which has higher laser injury threshold and high environment-resisting stability. The moistureproof film layer material is prepared from silanolate containing hydrophobic group, and thus, has the characteristics of compact structure and low surface energy; and water molecules in air are isolated from the crystal, thereby enhancing the deliquescence resistance. The moistureproof film layer material is prepared from silanolate containing hydrophobic group, and thus, has the characteristics of compact structure and low surface energy; and water molecules in air are isolated from the crystal, thereby enhancing the deliquescence resistance. The method can implement novel complex functions of the nonlinear optical crystal protective film, and ensure the long-term stable operation of the crystal in a high-power laser system.

The invention discloses a swash plate based on cyanate. The swash plate consists of a substrate and a wear-resistant coating, wherein the wear-resistant coating is prepared from the following ingredients in parts by mass: 40-60 parts of cyanate / epoxy resin copolymer, 20-50 parts of PTFE (Polytetrafluoroethylene), 10-30 parts of molybdenum disulfide, 5-10 parts of graphite fluoride and 1-10 parts of reinforcing material. According to the swash plate disclosed by the invention, the wear-resistant coating is reasonable in composition and excellent in heat resistance and adhesion, thus the swash plate based on the wear-resistant coating has excellent wear resistance, has the friction performance, which is far superior to that of the existing swash plates prepared from resin regardless of whether the swash plate is in a dry state or oil state, and can meet the needs of an automotive air conditioner compressor.