31results about How to "Reduce chemical corrosion" patented technology

Provided is a force rheological polishing method with the chemical action released at a fixed point. A wrapping body containing chemical polishing liquid is added into non-Newtonian fluid polishing liquid with a shearing thickening effect; in the polishing process, along with increasing of the relative movement speed of the polishing liquid and a workpiece, the shearing force caused by the workpiece on the polishing liquid is ceaselessly increased, the polishing liquid generates a rheological phenomenon, and viscosity is fast increased; thus, the acting force of the polishing liquid on the wrapping body dispersed in the polishing liquid is relatively enhanced, the wrapping body is extruded and broken on a face making contact the workpiece, and chemical substances in the wrapping body are released to a polished surface of the workpiece; and the chemical substances bear high speed and high pressure effects, a chemical reaction fast happens with the surface of the workpiece, chemical reactants formed on the surface of the workpiece are efficiently removed by abrasive particles in the polishing liquid, no mechanical damage is generated on a workpiece body material, and therefore the polishing efficiency and quality of the workpiece material are improved. The force rheological polishing method with the chemical action released at the fixed point is efficient, low in cost and environment-friendly.

The invention discloses a mildew-proof and antibacterial liquid crystal electronic glass spacer paper and its production process. The slurry of the spacer paper includes 50-70% of virgin coniferous wood pulp, 10-30% of virgin hardwood pulp and 10-30% of virgin hardwood pulp. 20% coniferous wood pulp; among them, virgin softwood pulp and coniferous wood pulp are mixed and beaten, and the beating degree is 25-30°SR; the original hardwood pulp is beaten separately, and the beating degree is 20-25°SR. Quantitative value is 30-60g / m2, pH value is 4.5-6.5, water content is 1.0-4.0%, surface resistance ≥ 1010Ω, air permeability ≥ 500ml / min. The invention combines various measures to prepare a weakly acidic anti-mildew and antibacterial liquid crystal electronic glass spacer and packaging paper with high stiffness, high mechanical strength and high air permeability, and has a certain isolation and protection during the storage and transportation of the electronic glass. Protective effect, but also has anti-mildew, moisture-proof function.

The invention discloses a water-based fluorinated graphene coating, a preparation method and application thereof. This water-based fluorinated graphene coating includes A component and B component; wherein, A component is composed of the following components: water-based epoxy resin emulsion, fluorine-modified acrylic emulsion, water-based aluminum silver paste, fluorinated graphite ene, graphene, leveling agent, plasticizer, photocatalyst, alignment agent, defoamer, toughening agent, dispersant, water; B component is water-based epoxy curing agent; A component and B component The mass ratio is (3-6):1. At the same time, the preparation method of the water-based fluorinated graphene coating and its application in the surface treatment of highway guardrails are also disclosed. The water-based fluorinated graphene paint of the present invention has good weather resistance and physical properties, and simultaneously has anti-fouling and self-cleaning capabilities, excellent anti-corrosion and anti-rust performance, and is suitable for surface treatment of expressway guardrails.

The invention belongs to the field of anti-corrosion of metals in saline solution, and specifically relates to a preparation method and application of a stable superhydrophobic conductive polysiloxane-polyaniline (PANIC-RA-POS) anti-corrosion coating. The method of the present invention utilizes the electrochemical method to construct a dense and stable conductive polyaniline film on the metal surface, adopts a spraying method to construct an external hydrophobic polysiloxane coating, and sprays self-adhesive (RA) between polyaniline and polysiloxane at the same time. ) to form a polysiloxane-polyaniline (PANIC-RA-POS) anti-corrosion coating and apply it to the field of metal surface anti-corrosion. The coating involved in the present invention is divided into internal conductive polyaniline film PANIC and external super-hydrophobic coating POS. PANIC has the unique advantages of spontaneous passivation of metal surfaces and slowing down pitting corrosion, effectively reducing electrochemical corrosion. The characteristic of spontaneously forming an air layer can effectively block the transmission of corrosive media and electrons, and effectively reduce chemical corrosion. The self-adhesive spray SA strengthens the bonding force between PANIC and POS, and effectively improves the metal anti-corrosion performance.

The invention relates to a method for cleaning a filter bag for a cloth-bag or electric-bag dust collector, which comprises the following steps: (1) clearing surface dust of the filter bag of which the breaking strength is not less than 400N, then, soaking an intercepted small sample into water, measuring the pH value and the ion concentration of soak solution, and if the pH value of the soak solution is less than 5 or in gteater than 9, or F<-> is greater than 2.0mg / l, Cl<-> is greater than 250mg / l, NO3<-> is greater than 30mg / l, SO42<-> is greater than 350mg / l and PO43<-> is greater than 3mg / l in the soak solution, judging that the filter bag needs to the cleaned; (2) firstly, clearing a surface pressed powder layer of the complete filter bag by using compressed air, then, clearing the surface dust by using the dust collector, then, shifting the filter bag into an ultrasonic instrument holding detergent solution for cleaning, washing with the water after the cleaning is completed, and drying in a drying oven. After being cleaned by adopting the method, the filter bag can be recovered in air permeability, the dust clearing period is shortened, corrosive ions remaining in the filter bag are removed, and the service life of the filter bag is prolonged.

The invention relates to a high lead-antimony slag type which is used for smelting technique of anode mud and is used by the anode mud in the process of reduction smelting of an oxygen bottom blowing bullion lead furnace in the technique that an oxygen bottom blowing furnace smelts the anode mud and a using method, belonging to the scope of separation and extraction of precious metal and base metal; a formula thereof is the high lead-antimony slag type with low silicon, low calcium and low sodium; all the materials comprises the following ingredients according to mass ratio: 5 to 22 percent of SiO2, 1 to 8 percent of FeO, 0 to 6 percent of Na2O, 0 to 5 percent of CaO, 10 to 35 percent of PbO and 150 to 45 percent of Sb2O3, wherein, the control range of the mass ratio of the PbO and SiO2 is 1.50 to 6.0. The formula not only has good effect for prolonging the service life of a refractory material and improving the continuous operation rate and processing capacity of the bullion lead, but also leads the reduction and volatilization of arsenic and antimony and oxidation and slag formation of lead to be realized simultaneously, reduces the usage of flux and consumption of fuel and effectively separates the valuable metals.

The invention provides a method for preparing a superhard abrasive particle tool through ultrasonic-assisted active connection. The method comprises the following steps that A, a tool base body coated with active bonding agents and abrasive particles is fixed to an ultrasonic amplitude-change pole; B, the tool base body is subjected to braze heating and temperature rising technology operation, after the active bonding agents reach the melting temperature, first ultrasonic waves are applied to the tool base body, and chemical bonding and the wetting climbing effect of the active bonding agents and interfaces of the abrasive particles are facilitated through the ultrasonic effect; C, after the temperature rising technology is completed, the first ultrasonic waves are stopped applying, when the temperature of a connection zone is lowered to the liquid-solid converting temperature of the active bonding agents, second ultrasonic waves start to be applied to the tool base body, and heat stress releasing in the cooling process is conducted through high-frequency vibration of the second ultrasonic waves; and D, after the temperature of the connection zone is lowered to the tempering temperature of the active bonding agents, processing is stopped, and after temperature of the connection zone is further cooled to the room temperature, the abrasive particle tool is obtained.

The invention discloses a perovskite solar cell, a double-layer metal electrode for the perovskite solar cell and a preparation method thereof. The perovskite solar cell comprises a glass substrate, a transparent conductive electrode, a hole transport layer, a perovskite thin film, electron transport layer and double-layer metal electrode; the double-layer metal electrode includes a first metal thin film layer and a second metal thin film layer, and its preparation method includes: depositing a layer of the first metal thin film layer on one side of the electron transport layer, A second metal thin film layer is deposited on the first metal thin film layer. In the present invention, a layer of chemically inert first metal thin film layer is deposited in low-temperature vacuum on the electron transport layer, and a second metal thin film layer with high conductivity is arranged on the first metal thin film layer, which can reduce photoelectric conversion On the basis of efficiency, it can effectively isolate the penetration of moisture and reduce the chemical corrosion of the second metal thin film layer, which is beneficial to improve the stability of the perovskite solar cell.

The invention relates to a barium titanate chemico-mechanical polishing aqueous composition and its application. Specifically, the barium titanate chemico-mechanical polishing aqueous composition comprises: 1-20 wt%, preferably 8-15 wt% of an abrasive; 0.5-10 wt%, preferably 1-3 wt% of a complexing agent; and 0.01-5 wt%, preferably 0.1-1 wt% of a surface adsorbent, wherein the barium titanate chemico-mechanical polishing aqueous composition has a pH value of 8.0-12.0, preferably 10.0-11.5. The barium titanate chemico-mechanical polishing aqueous composition provided in the invention can be effectively applied to a barium titanate substrate chemico-mechanical polishing process, thereby being able to effectively obtain a polished barium titanate layer with a high polishing rate and high surface quality.

The invention relates to a magnesium alloy anode oxidation method sequentially comprising degreasing, pickling, alkali corrosion, anodic oxidation and drying steps, and a pulse power supply used in the anodic oxidation step outputs AC square wave pulses. An anodic oxidation film generated in the anodic oxidation process is not burnt and the surface of the oxidation film is smooth.