7 results about "Industrial alcohol" patented technology

The present application relates to a kind of deep well pump motor stator core detection method and device, it is related to the field of stator core, it includes: by from top to bottom illumination to the preset stacking table, and the product stacking image of stator core stacking on stacking table is collected;Product stacking image is darkened and the center shadow profile of each stator core is identified to obtain;Based on center shadow profile determines clamping position, controls preset transfer mechanism in any clamping position to stator core is clamped, stator core is moved from stacking table to preset detection table position;Industrial alcohol is sprayed in the inner cavity of stator core, and preset backlight is controlled from stator core by from bottom to top and is irradiated;Under the condition of irradiation, stator core is imaged at multiple angles and obtains core image set;Core image set is analyzed to obtain detection result, and output detection result.The present application has the effect of improving the detection efficiency of deep well pump motor stator core.

The invention discloses a WS2 / W composite material, a preparation method thereof and application of the WS2 / W composite material in a sodium-sulfur battery. The preparation method comprises the following steps: uniformly stirring isopropanol and acetone to obtain a mixed solution A; weighing tungsten hexachloride, adding the tungsten hexachloride into the mixed solution A, and uniformly stirring to obtain a mixed solution B; transferring into a reaction kettle, sealing and putting into a drying oven for reaction; after the reaction is finished, carrying out suction filtration and washing on a product by using industrial alcohol, and drying in a vacuum oven to obtain W18O49 powder; the method comprises the following steps: weighing W18O49 powder and sublimed sulfur, respectively and correspondingly placing the W18O49 powder and sublimed sulfur in a first porcelain boat and a second porcelain boat, then placing the second porcelain boat in the first porcelain boat, placing the second porcelain boat in a tubular furnace, introducing argon into a furnace chamber of the tubular furnace, after the pressure of the furnace chamber is increased to 0.2-0.3 MPa, keeping the airtightness of the system, heating to 1100-1300 DEG C at the rate of 20 DEG C / min, keeping the pressure at 0.2-0.3 MPa in the heating process, and keeping the temperature for 2-3 hours; and after the temperature reaches 1100-1300 DEG C, continuously preserving heat for 2 hours, introducing argon, cooling to room temperature, and collecting to obtain WS2 / W powder. The problems of poor conductivity of the sulfur positive electrode, polysulfide shuttle effect and slow reaction kinetics are solved.

This invention discloses an alkaline earth metal Ca-doped W 18 O 49 This invention relates to a catalyst, its preparation method, and its application, belonging to the field of functional materials. The method includes: 1) mixing 40-50 mL of anhydrous ethanol and 10-20 mL of acetone and stirring to obtain mixed solution A; 2) weighing 0.001-0.003 mol of tungsten hexachloride and adding it to mixed solution A, and stirring to obtain mixed solution B; 3) weighing CaCl2 according to nCa:nW = 0.01-0.05 and adding it to mixed solution B, and stirring to obtain mixed solution C; 4) transferring mixed solution C to a reaction vessel, sealing it, and placing it in an oven, reacting at 190-210℃ for 6-12 h; 5) after the reaction is complete, washing the product with industrial alcohol by filtration, drying it in a vacuum oven at 50-80℃ for 10-30 min, and collecting the product. This invention solves the problem of single W 18 O 49 Catalysts often suffer from insufficient electronic conductivity, limited utilization of active sites, and poor stability. This invention increases the number of oxygen vacancies and the density of active sites, while simultaneously improving the ion transport channels of the material and enhancing its adsorption and anchoring ability for polar polysulfides.

The present application relates to a kind of deep well pump motor stator core detection method and device, it is related to the field of stator core, it includes: by from top to bottom illumination to the preset stacking table, and the product stacking image of stator core stacking on stacking table is collected;Product stacking image is darkened and the center shadow profile of each stator core is identified to obtain;Based on center shadow profile determines clamping position, controls preset transfer mechanism in any clamping position to stator core is clamped, stator core is moved from stacking table to preset detection table position;Industrial alcohol is sprayed in the inner cavity of stator core, and preset backlight is controlled from stator core by from bottom to top and is irradiated;Under the condition of irradiation, stator core is imaged at multiple angles and obtains core image set;Core image set is analyzed to obtain detection result, and output detection result.The present application has the effect of improving the detection efficiency of deep well pump motor stator core.

The invention discloses a fan casting sand mold strengthening and baking method, and relates to the technical field of fan casting, the fan casting sand mold strengthening and baking method comprises the following steps: S1, sand mold preparation: mixing sand, resin and a curing agent according to a mass ratio of 1: 0.01: 0.005, and carrying out natural reaction molding to obtain a sand mold matrix; s2, coating preparation: mixing the high-temperature-resistant fireproof coating with industrial alcohol to prepare slurry suitable for flow coating; s3, surface flow coating is conducted, specifically, the surface of the sand mold base body is coated with the slurry in a flow mode, and a uniform coating is formed; and S4, ignition and spontaneous combustion: igniting the slurry on the surface of the sand mold after flow coating. According to the method, through a synergistic dehydration mechanism combining ignition spontaneous combustion and staged baking, most of surface and shallow solvents are rapidly removed through alcohol spontaneous combustion, deep bound water is thoroughly and stably removed through a mild baking strategy of low temperature and high temperature, it is ensured that the sand mold is in an absolute dry state before pouring, and the quality of the sand mold is guaranteed. Therefore, the explosion risk caused by instant expansion of water vapor is eradicated.

This invention discloses an automatic heat-insulating sample delivery device for a drop hammer test, relating to the field of impact testing technology. It includes: a sample heat-insulating mechanism comprising a heat-insulating box containing a heat-insulating liquid; and a sample delivery mechanism comprising a delivery track and a robotic arm assembly moving along the delivery track. The heat-insulating box and the drop hammer detection station are both located directly above the displacement path of the robotic arm assembly. The heat-insulating liquid is industrial alcohol, and its chemical composition and mass percentage include: ethanol content ≥95.0%, methanol content ≤0.06%, water content ≤5%, and impurities controlled ≤0.5 mg / L. This invention regulates the temperature of the heat-insulating liquid through a temperature control component, achieving rapid cooling and heating of the industrial alcohol, facilitating the setting of different sample conditions, and ensuring a stable industrial test temperature.

The invention discloses a special inspection device for turbonator rotor forgings and a use method thereof, and relates to the technical field of turbonator rotor forgings machining.The special inspection device comprises a transverse plate, a fixing block is fixedly connected to the center of the bottom of the transverse plate, a vertical plate is fixedly connected to the bottom of the fixing block, and a through groove is formed in the position, close to the bottom, of an inner cavity of the vertical plate; by means of mutual cooperation of the transverse plate, the eddy current detector, the motor, the pump machine and other structures, the device can not only conduct destructive sampling on the rotor forge piece, but also conduct non-destructive sampling on the rotor forge piece, and during non-destructive sampling, the sampling efficiency is greatly improved. The non-flannelette is placed in the second cavity in the fixing block, the second valve is rotated, the industrial alcohol in the first cavity in the fixing block enters the first cavity and wets the non-flannelette in the first cavity, and after the non-flannelette is wetted, the second valve is closed.