82results about How to "Improve corrosion efficiency" patented technology

The invention discloses an ultra-supercritical martensite heat resisting cast steel original austenite grain size display method, and belongs to the technical field of smelting metallographic structure sample analysis and inspection. The method comprises the steps that 1, austenitizing heat preservation is performed on a sample, wherein the temperature of a high-temperature furnace is increased to 1100 DEG C to 1150 DEG C, the sample is placed in the furnace for heat preservation, the temperature of the sample is quickly lowered to 800 DEG C in the furnace, heat preservation is performed, and then the temperature is lowered to the room temperature; 2, metallographic sample cutting is performed, wherein oxidation and decarbonization portions on the surface of a metallographic sample, with the specification of 15*15 mm, of the sample material processed through heat treatment are removed, and metallographic sample grinding and polishing are performed, wherein the surface of the sample is washed clean, and the sample is placed on a polishing machine to be polished; 3, a corrosive agent is prepared, wherein the volume ratio of nitric acid to alcohol is (6-10):(94-90), and chemical corrosion is performed, wherein the polished surface of the sample is upwards placed in a corrosive solution to enable the solution to cover the surface of the sample, and then the sample is taken out after being stood for 15-30 minutes on the room temperature condition; 4, grain size observation and statistics are performed, wherein a metallograph is taken for the sample.

The invention provides an ecological vegetation concrete slope protection structure. The structure comprises a slope surface, a vegetation concrete layer jetted along the slope surface as well as a vegetation seed layer located on the vegetation concrete layer, wherein a plurality of concave grooves are distributed in the slope surface at intervals; the vegetation concrete layer is jetted into theconcave grooves to form a sawtooth connection structure with the slope surface; a plurality of recovered disposable chopsticks are arranged in the vegetation concrete layer in a staggered manner at intervals. Strength and adhesion of the concrete layer and the slope surface are improved by the physical structure and the recovered disposable chopsticks, the structure is simple, household waste canbe used, and the structure is environmentally friendly and energy-saving. The invention further provides a construction method of the ecological vegetation concrete slope protection structure. The method comprises steps of preparing vegetation concrete and the like. The method adopts simple process, immediate mixing can be performed before construction, so that activity of organic matter and activity of wood-rotting fungi in the vegetation concrete can be guaranteed, and the organic matter and the wood-rotting fungi in the vegetation concrete can persistently have decay fertilizer efficiencyafter concrete pouring.

The invention discloses an etching machine, wherein an etching groove, a flushing tank and a driving device are arranged in a chassis; a basket is connected to the driving device, a first rotary shaft and a second rotary shaft are arranged on the basket, and the driving device drives the basket to rotate around the first rotary shaft and drives the first rotary shaft to rotate around the second rotary shaft. The etching machine disclosed by the invention improves the corrosive uniformity and corrosive speed as well as the uniformity of backwashing and the flushing speed.

The invention discloses a method for eroding 2Cr12Ni1Mo1V steel grain boundary, relating to a method for eroding the steel grain boundary. According to the method, solves the problem that the existing method for eroding 2Cr12Ni1Mo1V steel grain boundary can not really respond to the problem of 2Cr12Ni1Mo1Vsteel grain boundary usually. A method for eroding 2Cr12Ni1Mo1V steel grain boundary comprises the steps of 1. preparing a corrosion reagent; and 2. eroding 2Cr12Ni1Mo1V steel. The method for eroding 2Cr12Ni1Mo1V steel grain boundary is applied in evaluating grain degree of 2Cr12Ni1Mo1V steel.

The present invention provides a lightweight composite organic heat preservation and sound insulation prefabricated board for fabricated buildings. The lightweight composite organic heat preservationand sound insulation prefabricated board for the fabricated buildings comprises two organic sound absorption boards, a damping silicone rubber layer, two fiber cement pressure plates, wherein the twoorganic sound absorption boards are made of wood organic matter, white rot fungus hyphae and foaming agents; the damping silicone rubber layer is arranged between the two organic sound absorption boards, and is used for being connected with the organic sound absorption boards and cutting off the transmission of a sound wave; and the two pieces of fiber cement pressure plates are arranged on the outside side of the organic sound absorption boards. According to the lightweight composite organic heat preservation and sound insulation prefabricated board for the fabricated buildings, the wood organic matter is decomposed by wood rot fungi to produce dense pores, the covering effect of wood rot fungi hyphae is used, so that the organic sound absorption boards have excellent sound-absorption effect on the basis of meeting the use requirements of strength characteristic. The invention further provides a preparation method for the lightweight composite organic heat preservation and sound insulation prefabricated board for the fabricated buildings, the preparation process is simple, and the production cycle is short.

The invention relates to a fabrication device and fabrication method of a substrate surface light trapping structure. The fabrication device of the substrate surface light trapping structure comprisesa corrosion groove, a light source and a light transmitting plate, wherein the corrosion groove is used for loading a corrosion liquid and a substrate to be corroded, the light source is used for emitting catalytic light, the light transmitting plate is arranged above the corrosion groove, periodic gaps are formed in the light transmitting plate and are used for enabling the catalytic light to irradiate the corrosion groove, and a substrate surface is corroded by the corrosion liquid the effect of the catalytic light to obtain the light trapping structure. Photocatalysis is used for corrosionreaction, mass production of the light trapping structure can be achieved compared with a traditional light trapping structure mask, a nanoscale light trapping structure can be fabricated compared with a traditional scratching or simple corrosion method, the light receiving area can be greatly expanded, reflection resistance is effectively achieved, so that technical inspiration is provided for improving efficiency of a solar cell and a photoelectric detector.

The invention relates to a composite microbial agent for the rot decomposition of straw and an application method thereof. The composite microbial agent for the rot decomposition of the straw is prepared from, by the number of effective viable bacteria, 3-30 parts of bacillus subtilis, 50-99 parts of bacillus amyloliquefaciens, 1-5 parts of trichoderma asperellum and 1-15 parts of trichoderma longibrachiatum Rifai. The application method of the composite microbial agent for the rot decomposition of the straw comprises the following steps of (1) harvesting and pulverizing the straw; (2) scattering and flat spreading the straw; (3) turning up the soil/ conducting rotary tillage; (4) conducting irrigation and soaking; (5) dissolving and spraying the microbial agent; (6) 14-30 days after treatment, completing the rot decomposition of the straw. The composite microbial agent for the rot decomposition of the straw and the application method thereof have the following advantages that the rotof the straw is accelerated; the content of organic matter in the soil is increased; the pollution and fermentation barriers are reduced; the cost is reduced.

The invention discloses an automatic PCB board corrosion chamber. The automatic PCB board corrosion chamber comprises a central control module, a frequency modulation vibration module, a mechanical transmission module, a temperature detection and feedback module, a heating module, a liquid-level sensor module, a stroke control module, an alarm reminding module, an OLED liquid crystal display module, a button module, a drive module and a power supply module. According to the working mode of the automatic PCB board corrosion chamber, the temperature detection and feedback module and the heating module form a closed loop so that the temperature of a corrosion solution is maintained at optimum corrosion temperature range; the PCB board is driven to be vibrated by the vibration of a vibration motor so as to greatly speed up the contact rate of PCB board and effective ions in the corrosion solution; the corrosion solution inside the corrosion chamber is stirred through the gas generated from a gas pump so that the effective ions inside the corrosion chamber are uniformly distributed in the corrosion solution, the corrosion rate is accelerated, the corrosion quality is improved, the erosion waiting time is reduced, the manpower is released through automatic control and the corrosion quality is improved by setting and establishing a delay control mechanism. The automatic PCB board corrosion chamber is simple in operation and is convenient to popularize.

The invention provides a metallographic structure display method of copper and a copper alloy. The metallographic structure display method of the copper and the copper alloy comprises the steps of: (1), providing a metallographic sample of the copper and the copper alloy, wherein the metallographic sample comprises a copper layer and a copper alloy layer plated on the copper layer; (2), providinga container, fixing the metallographic sample into the container, and adding polyflor resin; (3), taking out the metallographic sample encircled by the polyflor resin, mechanically grinding the metallographic sample, and then, mechanically polishing the grinded metallographic sample; (4), providing a metallographic corrosive, wherein the metallographic corrosive is mixed solution of ferric trichloride and hydrochloric acid, and performing metallographic micro-corrosion by dip dyeing of the polished metallographic sample through the metallographic corrosive; and (5), washing and drying the corroded metallographic sample, observing the copper layer and the copper alloy layer of the dried metallographic sample by using a microscope, so that the boundary of the copper and the copper alloy canbe displayed clearly, and measurement of the thickness of the copper layer can be easily carried out.

The invention relates to a high-temperature corrosion inhibitor for an H2S-HCl-H2O system and a preparation method of the high-temperature corrosion inhibitor. According to the preparation method, methyl-alpha-naphthyl ketone, morpholine and sulfur are taken as main raw materials and are subjected to a Willgerodt-Kindler method to generate naphthylethyl thioacylmorpholine. The high-temperature corrosion inhibitor comprises the following components in percentage by weight: 30%-50% of ethyl thioacylmorpholine, 5%-15% of hexadecyl pyridine, 10%-15% of alcohol amine compounds, 1%-3% of potassium molybdate or potassium tungstate and 29%-57% of a solvent. The high-temperature corrosion inhibitor belongs to strong-adsorption mixed type corrosion inhibitors, is capable of forming a layer of compact protecting film on the surface of metal and particularly applicable to the corrosion prevention of the H2S-HCl-H2O system and can be generalized and used for the prevention of sulfuretted hydrogen corrosion in the industries of oil fields, boilers and steel mills. The use temperature of the high-temperature corrosion inhibitor during the use can reach 120 DEG C; the high-temperature corrosion inhibitor has the characteristics of low consumption, high efficiency, wide use temperature range, good dispersity and low environmental pollution and is simple and convenient to produce.

The invention relates to a metallographic sample chemical immersion corrosion instrument, which comprises a box body, a sample flushing system, an electronic control system, a sample clamping mechanism and a corrosive liquid dropper. Specifically, the box body comprises a base and a cover arranged at the upper end of the base; the sample flushing system comprises a flushing water tank, an electronic control pump and a water spray pipe; the electronic control system comprises a controller and a control panel; and the sample clamping mechanism comprises a support rod, a lifting rod, a trapezoidal block seat, two trapezoidal blocks, and a stop screw. Compared with the manual corrosion way, the metallographic sample chemical immersion corrosion instrument provided by the invention saves labor, improves the corrosion efficiency, reduces the metallographic sample making time and cost, also ensures the corrosion quality, avoids the risk of corrosive liquid damage to operation staff, and solves the sample over-corrosion problem.

The invention discloses a transferring method of an edge-free vertical structure LED chip substrate. The transferring method of the edge-free vertical structure LED chip substrate comprises a metal layer depositing step, an epitaxial wafer surface treatment step, a substrate deposition transferring step, a bonding step, a thinning step, a residual silicon removal step, and a vertical LED chip preparation step. The transferring method of the edge-free vertical structure LED chip substrate disclosed by the invention can solve the problems in the current substrate transferring process by means ofthe epitaxial wafer surface treatment step, the thinning step, the residual silicon removal step and the like, which can obtain a comparatively excellent substrate transferring technology.

The invention relates to a metallographic corrosive of a stainless steel high temperature quenched structure and a corrosion method thereof. The corrosive is made from a first corrosive and a second corrosive, wherein the first corrosive is prepared by mixing nitric acid with concentration of 68% and absolute ethyl alcohol, and the second corrosive is prepared by mixing hydrochloric acid with concentration of 37%, citric acid and absolute ethyl alcohol. The corrosive provided in the invention is easy to prepare, and the corrosion method is simple to conduct and can deliver a clear metallographic structure.

The invention discloses a method for manufacturing a GaP rough surface of a GaAs-based LED wafer, and the method comprises the steps: preparing a wafer epitaxial layer, carrying out the roughening corrosion of a GaP window layer of the epitaxial layer, dissolving photoresist and roughening corrosion liquid together through a surfactant, forming corrosion sol with a roughening corrosion effect, coating the surface of the GaP window layer with the corrosion sol, baking at a constant temperature of 40-60 DEG C, removing a corrosion film layer and a silicon dioxide layer by using solvents such asacetone and the like, and continuously preparing to obtain an independent tube core; the process method designed by the invention is simple and easy to operate, does not need to introduce special equipment, is lower in cost, is more uniform in coarsening corrosion of the surface of the epitaxial layer, is higher in corrosion controllability, is good in coarsening effect, and solves the problems that the coarsening corrosion is more difficult to control and the coarsening brightness is not improved greatly when a solution is used at present. When the method provided by the invention is used forcoarsening, the light extraction efficiency can be improved by 25-30 percent, and the method has higher practicability.

The invention belongs to the technical field of graphite electrodes, in particular to a graphite electrode used by an aluminum electrolytic capacitor for electrochemical corrosion. The graphite electrode consists of a graphite polar plate, an insulated baffle plate and two copper bars. One end of each copper bar is inserted into the graphite polar plate and the other end of each cooper plate is connected with a power wire. The insulated baffle plate is fixed with the graphite polar plate through a graphite bolt and a non-through screw hole. Compared with the graphite electrode in the prior art, the graphite electrode has the advantages that the current in the electrode is uniformly distributed, lateral deviation of electrode foil is obviously lowered, and the self-corrosion of the electrode foil can not become more serious due to prevention of production of other metal elements that can pollute liquid in an etch bath.

The invention provides an afforest additive for vegetation concrete. The afforest additive comprises the following components in percentage by weight: 14-26% of organic matter, 0.6-8% of wood-destroying fungi mycelium, 30-38% of fly ash and 32-40% of plant ash. The afforest additive provided by the invention comprises a certain amount of the organic matter and the wood-destroying fungi mycelium, the production cost is low, the preparation technology is simple, the stability and durability of slope vegetation concrete can be improved, and the sprouting rate and the survival rate of seeds of slope vegetation can also be increased. The invention further provides a preparation method of the afforest additive for vegetation concrete. The preparation method comprises the following steps: preparing an organic additive: adding water of which the proportion is 65-75%a to an organic matrix of which the weight is a, and after storing for 12 hours, performing sterilization to obtain a culture medium; regulating the PH of the culture medium so that the initial PH value is 4; and adding wood-destroying fungi of which the proportion is 0.02-0.06a to the culture medium of which the PH is 4, and performing fermentation in a manner of being away from light for 7-12 days to obtain the organic additive.

The invention belongs to the technical field of hard alloys, and discloses a chemical corrosion method for removing hard phases on the surface of hard alloys. The method comprises the following steps:(1) the hard alloys are polished, and then, are cleaned and dried; (2) corrosion liquid is prepared according to a ratio of dissolving 0.2-1.1 g potassium ferricyanide and 5-19.8 g sodium hydroxide in every 100 mL water; and the polished hard alloys are fed in the corrosion liquid for next treatment; (3) the ultrasonic oscillation is performed by 5-30 min; (4) ultrasonic waves are turned off; andthe hard alloys are stood in a light shielding environment at a normal temperature for 30-180 min; (5) the steps (3) and (4) are repeated by 3-8 times; and (6) the hard alloys are taken out from thecorrosion liquid to put in water for ultrasonic cleaning by 1-8 min; and the surfaces of the hard alloys are dried after cleaning. The corrosion process of combining chemical corrosion with ultrasonicoscillation is adopted; WC phases on the surfaces of the alloys are thoroughly corroded; no WC is remained on the surfaces of the alloys; and bonding phases cannot be oxidized.

The invention relates to a stainless steel corrosive for a fuel cell bipolar plate and a metallographic phase preparation method. The stainless steel corrosive comprises the following components in percentage by volume: 1.0-5.0% of concentrated sulfuric acid, equal to or less than 1.0% of hydrofluoric acid and the balance of deionized water. The metallographic phase preparation method adopts the corrosive and comprises the following steps: 1, preparing a sample; 2, preheating the corrosive at the temperature of 40-90 DEG C; 3, taking the sample and corrosion resistant conductive material as the anode and the cathode separately, inserting the anode and the cathode in the preheated corrosive, applying 1.0-2.0 V of voltage at the two ends of the sample and the corrosion resistant conductive material, and carrying out corrosion for 0.5-6 minutes; and 4, taking the sample out, and washing and drying the sample. Compared with the prior art, the corrosive is simple in matching, easy to prepare, safe and environmentally-friendly; the corrosive method is easy to operate and excellent in controllability, a stainless steel metallographic phase sample can be rapidly prepared on batches, the corrosive liquid can be repeatedly used and is economical and efficient; and the metallographic structure and grain boundary are uniform and clear.