48 results about "Post washing" patented technology

The invention discloses a controllable quantum dot array preparing method based on the photo-thermal effect. According to the method, a metal or alloy nanoparticle array serves as a template, the reaction conditions of a quantum dot precursor are controlled through the local surface plasmon thermal effect irritated by a light source, and therefore the preparing site, size and nucleation density ofthe precursor is controlled. The method mainly includes the steps of preprocessing the surface of the substrate, conducting thin-film deposition on surface metal, preparing the metal nanoparticle array, depositing a protecting layer, growing the quantum dot and conducting post-washing on the substrate. The large-area low-cost quantum dot array is prepared through a chemical synthesis method. Themethod can be combined with a semiconductor processing technology, the prepared quantum dot array can be applied for machining and preparing a quantum dot laser device, a single photon light source, asolar cell, a high-efficiency light-emitting diode, a storage and other devices.

The washing machine control method using intelligent server includes the following stags: the stage for the intelligent server to send request for judging whether to have washed matter inside the washing tub and measuring humidity after the first setting time following the washing operation; the stage for the intelligent server to send washed matter setting information and inquiring information to the user and to inquire whether to have post-treatment based on the measured humidity; and the stage for the intelligent server to send order for the washing machine to complete the post washed matter protecting measures based on the response information from the user and to transmit the said result to the user. The present invention can perform communication for the intelligent server to control the post-washing operation of washing machine.

The invention belongs to the technical field of a solar cell, and particularly relates to a main grid electrode structure of a solar cell and a preparation method thereof. A positive electrode comprises a thin grid silver electrode; metal wires are printed on the metallized thin grid silver electrode; and the metal wires are connected with the silver electrode by adhering points. The preparation method comprises the steps of: by adopting a silk-screen printing process, printing the thin grid silver electrode on the positive surface of a P-type silicon matrix processed by processes of texturing, diffusion, post washing, coating and printing of a back field of a back electrode; and then printing a metal wire main grid electrode on the surface of the metallized silver electrode, wherein the metal wires are connected with the silver electrode together by the adhering points. The main grid electrode structure for the solar cell and the preparation method thereof, which are disclosed by the invention, have the advantages that a copper electrode replaces a positive main grid silver electrode so as to reduce the use quantity of the silver electrode of the positive electrode of the silicon solar cell, thereby reducing production cost of the silicon solar cell; and additionally, the copper electrode is used for replacing burn-through silver paste so as to reduce breakage and replacement of a passive film, improve surface passivation efficiency and improve cell efficiency.

The invention relates to an overall waveform piece machining technology for an automobile clutch, and belongs to the technical field of clutch machining. The overall waveform piece machining technology comprises the steps that a 65 Mn steel belt in the spheroidizing annealing state is prepared, and procedures including punching, necking, center hole punching and blanking are carried out; overall waveform piece quenching is carried out, wherein feeding washing, quenching and post washing are carried out; and tempering leveling, tempering molding and anti-rusting treatment are carried out. The overall waveform piece machining technology has the beneficial effects that eight waveforms are formed on a circumference of an overall waveform piece, and the mold height can meet the requirement forcoincidence. Compared with an overall waveform piece machined through original technology by means of axial compression endurance tests, the fatigue decrement is reduced.

The invention discloses a production method of basic cobalt carbonate. The method realizes efficient pollution-free production of basic cobalt carbonate. The production method comprises the following steps of: a, preparing a Na2CO3 solution; b, synthesizing; c, ageing; d, performing primary filter pressing and washing; e, performing secondary filter pressing and washing; and f, drying. The method is simple in technical process and can be used for quickly producing basic cobalt carbonate; meanwhile, the product quality can be adjusted well by controlling the stirring speed, the reaction temperature and the adding speed of cobalt chloride, an effect of uniform particles is achieved, and the content of cobalt can reach 52%; meanwhile, an additive, namely sodium ascorbate, is added into washing water during reaction to prevent oxidization of the product and is easy for filter pressing; and moreover, the content of impurities in the product is reduced by washing the product with deionized water for many times, and post-washing water can be recycled if being treated. Therefore, the whole production flow is simple in operation and low in cost, the production efficiency is increased while the labor intensity is lowered, and moreover, the method is free of environmental pollution and can be used for large-area popularization.

The invention discloses a method of preparing vanadium pentoxide by using a vanadium-containing solution. The method is characterized in that the method consists of the following steps: a pH value of the vanadium-containing solution is adjusted, magnesium chloride and calcium chloride are added, solid-liquid separation is carried out and silicon-phosphorus residues and a solution are obtained; multistage countercurrent extraction is carried out and a load organic phase and a raffinate phase are obtained; a sodium-containing back-extractant and the load organic phase carry out primary washing, and post-washing liquid and a post-washing organic phase are obtained; and an ammonium-containing back-extractant and the post-washing organic phase carry out primary reextraction, and ammonium-containing vanadium-rich liquid and a half-load organic phase are obtained; the post-washing liquid and the half-load organic phase carry out countercurrent reextraction for many times, and sodium-containing vanadium-rich liquid and a no-load organic phase are obtained; pH values of the ammonium-containing vanadium-rich liquid and the sodium-containing vanadium-rich liquid are adjusted, NH4Cl is added, the solid-liquid separation is carried out and ammonium metavanadate is obtained, and ammonium metavanadate is calcined and then vanadium pentoxide with the grade being greater than or equal to 99.5% and vanadium pentoxide with the grade being 99.9% are obtained. The production operation is simple and feasible, the cost is low, and a recovery rate and the purity are high.

The invention relates to an emulsion fabric decontaminating aerosol, which is particularly suitable for locally decontaminating fabric in the laundry industry and households. The emulsion fabric decontaminating aerosol comprises the following compositions in percentage by weight: a) 5 to 20 percent of nonionic surfactant comprising an alkyl alcohol epoxyethane surfactant and an alkyl phenol epoxyethane surfactant, b) 0.05 to 5 percent of one or more fluorin-containing nonionic surfactants, c) 30 to 40 percent of alkane derived solution, d) 0.1 to 2 percent of defoamer, mainly silicone defoamer, e) 0.1 to 1 percent of compound antirust inhibitor, f) 10 to 30 percent of propane-butane propellant, and g) 30 to 45 percent of water. The emulsion fabric decontaminating aerosol is an emulsifyingsystem product, successfully reduces the content of volatile solvent contained in the product by 30 to 40 percent, reduces the emission of harmful gases, makes post washing treatment easy, reduces consumption of the propellant, reduces resource consumption, and has good economic and social benefits compared with solvent products.

The invention discloses an overall-length diameter-expanding unit for a medium-diameter submerged-arc welding pipe. The overall-length diameter-expanding unit for the medium-diameter submerged-arc welding pipe comprises a diameter-expanding unit body. The diameter-expanding unit body is composed of a steel pipe inlet transverse movement vehicle, a pre-washing station, a diameter expanding station, a post-washing station and a steel pipe outlet transverse moving vehicle. Meanwhile, an independent water way system, a lubricating system, a hydraulic system and an electric system are further arranged. The overall diameter-expanding unit conducts pre-washing, diameter-expanding and post-washing of the inner wall of the steel pipe and steel pipe transferring through electric, hydraulic and mechanical linkage, the diameter-expanding quality, the washing quality and the production efficiency are guaranteed, and a guarantee is provided for later processes.

The invention discloses a new method for washing chlorine of nickelous hydroxide and related equipment of the new method. The method and equipment are used for continuous washing of the nickelous hydroxide and other solid slag. The equipment is cylindrical, a to-be-washed material inlet and a post-washing water overflow outlet are formed in the upper end of the equipment, and a washed material outlet and a washing water inlet are formed in the lower end of the equipment. Materials flow downwards, washing water flows upwards, and then continuous backwashing is achieved. According to the method, the solid nickelous hydroxide is ground and pulpified to be pumped into the to-be-washed material inlet of the slag washing equipment, and meanwhile alkaline water is pumped into the washing water inlet for slag washing. In the existing nickel wet metallurgy, the influence of the electrodeposition of chlorine on nickel sulfate is very large, chlorine can be generated and pollute the environment, and a pole plate can be corroded. Thus, chlorine washing treatment needs to be carried out on the nickelous hydroxide of a finished product with high chlorine content in the front section. According to the new method, the input expense of the equipment can be reduced, the slag washing water amount is reduced, and cost is reduced; and the slag washing effect can be improved, and the nickel-chlorine ratio is increased.

The invention relates to a method for technically controlling washing twisting of garment products due to weft skewing of fabrics. The method includes steps of (1), starting to shear certain portionsof the fabrics, manufacturing a left trouser leg and a right trouser leg with the sizes of 50*50 cm from each fabric, carrying out pre-washing and post-washing tests and recording pre-washing and post-washing sizes; (2), carrying out pre-washing and post-washing twisting rate tests; (3), adjusting twisting angles; (4), carrying out trouser leg tests on bulk products, carrying out summarizing pieceby piece according to different twisting rates, and adjusting the twisting angles of paper patterns for discharging; (5), adjusting grain lines on the paper patterns according to the twisting rates and twisting directions and adjusting pattern grain lines according to twist in the same direction; (6), discharging the bulk products according to new adjusted grain lines. The certain portions, whichare about to be shorn at the step (1), of each fabric are separated from radial yarn plain edges by the breadths of 5-7 cm. The 1/2 of the sum of the corresponding twisting rates of each left trouserleg and the corresponding right trouser leg is equal to a twisting degree of the corresponding fabric. The method has the advantages that the problem of twisting of ready-made garments can be solvedby the aid of the method, the production and work efficiency can be enhanced, and fabric test and labor costs can be saved; the appearance quality of products can be enhanced, the brand adhesion degrees can be upgraded, and the brand awareness can be improved.

The invention relates to the field of chemical industry and discloses a detergent composition and a method of regenerating an inactivated denitrification catalyst; the detergent composition comprises a surfactant, nitric acid, a heavy metal catching agent and an optional flocculant, wherein the weight ratio of the surfactant, the flocculant, the nitric acid and the heavy metal catching agent is (0.002-10):(0.1-50):(0.2-500):1. The detergent composition for removing mercury from the regenerated inactivated denitrification catalyst is more effective in removing heavy metals, such as mercury and arsenic, depositing in the inactivated denitrification catalyst, removing mercury and arsenic ions in post-washing washing solution, and precipitating in washing residue, thereby reducing water pollution.

The invention discloses a towel automatically washing machine. The towel automatically washing machine comprises a housing, a rotating mechanism, a clamping mechanism and a washing drying mechanism, wherein the first bearing inner ring and the second bearing inner ring of the rotating mechanism are fixedly connected with a box body through cylinders; the bottom surface of a third motor of the clamping mechanism is fixedly mounted onto a connecting plate; the connecting plate of the washing drying mechanism is fixedly connected with the box body, and the fixing plate of a second hydraulic cylinder is fixedly connected with the box body; the housing is a sealed waterproof structure with provided with a drainage hole and an openable cover plate; the rotating mechanism drives a first motor onthe housing to drive a first gear to rotate, and the first gear drives a bearing outer ring gear to rotate to drive the rotating mechanism to rotate; the washing drying mechanism is provided with a high-pressure water gun and a drying gun to achieve a washing drying function. Therefore, the towel automatically washing machine achieves a miniature cleaning machine, saves hand washing, avoids towelwrinkling and achieves a practical function of post-washing drying and the like.

The invention discloses a water basin allowing wastewater to be reused conveniently. The water basin comprises a basin body, buttons, connection rods, presser plates, elastic parts, holders, a plurality of plug strips, a base, and a basin foot. The two sides of the upper end of the basin body are symmetrically provided with mounting holes; the buttons are fixed in the mounting holes; the lower endof each button is fixed to the upper end of the corresponding connection rod; the presser plates are fixedly connected to the middle of the connection rods; the holder is fixed outside the basin body; the middle of each holder is provided with a through hole; the connection rods are passed through the through holes of the holders; the presser plates are positioned at the upper ends of the holders; the elastic parts are positioned between the presser plates and the holders; the connection rods are passed through the elastic parts; the lower ends of the connection rods are fixedly connected tothe base; the plug strips are fixed on the base; the bottom plate of the basin body is provided with a plurality of filter holes; the plug strips fit the filter holes and seal them; the basin foot isfixed to the bottom of the basin body to raise the bottom of the basin body; the base is positioned within the basin foot; the basin foot is provided with guide holes to guide the connection rod to move. The water basin allows post-washing wastewater to be reused.

The invention provides a hydraulic pipe fitting antirust process, comprising the following steps: a. removing impurities, placing the hydraulic pipe fitting in the pretreatment liquid and soaking for 10-30 minutes; b. cleaning, cleaning the hydraulic pipe fitting with warm water at 50-60°C Clean; c, soaking, place the cleaned hydraulic pipe fittings in the anti-rust solution and soak for 1-2 hours; d, cleaning, rinse the hydraulic pipe fittings soaked in the anti-rust liquid with clean water; e, dry, clean them The final hydraulic pipe fittings are dried in a dryer; f, frosting treatment, frosting the outer surface of the dried hydraulic pipe fittings; g, packaging, packaging the frosted hydraulic pipe fittings. The hydraulic pipe fitting antirust process of the present invention has simple process, convenient operation, good antirust effect and long service life of the hydraulic pipe fitting.

The presently claimed invention applies to an immunoassay apparatus based on micro-lens imaging technique and related product. In a preferred embodiment, the immunoassay apparatus comprises a monochromatic light source module, an intelligent auto-scanning and imaging module, a temperature controlled transparent toughened glass platform, a central control module, and a touchscreen displaying module. By automatically performing scan in focus imaging on the micro-lenses immersing in antigen-antibody solution and analyzing the data of the image, the apparatus can monitor the refractive index change of a sample solution before and after antigen-antibody reaction, so as to determine the concentration of antigen or antibody in the solution without requiring any labeling, expensive enzymes, pre-immobilization/modification, and post-washing. It can detect ultra-micro amount of Ag/Ab (˜pg/mL) in very low sample volume solution (several μL) within 2 minutes. It is of high accuracy and reliability. Moreover, the apparatus is simple and compact, can be portable for on-site immunoassay.

The invention discloses a method of preparing sodium dichromate, comprising the steps of (1), subjecting chromite and alkali solution to liquid oxidation, subjecting slurry to solid-liquid separation after reacting to obtain liquid phase A and solid phase B; (2), washing the solid phase B with circulatory alkali liquid, subjecting post-washing slurry to solid-liquid separation to obtain liquid phase C and solid phase D; (3), crystal-dissolving the solid phase D with sodium chromate crystal with water and iron residue washing liquid, carrying out solid-liquid separation to obtain crystal-dissolved liquid and iron residue, washing the iron residue with water, and returning the washing liquid to crystal dissolution; (4), preparing circulatory alkali liquid with the liquid phase C and crystal-dissolved liquid, adding an acid solution to the remaining crystal-dissolved liquid to adjust pH, and carrying out aluminum-silicon removal, acidifying, crystallizing and separating to obtain sodium dichromate and sodium sulfate; preparing. The process of the invention is simple, the flow is short, and the method is highly operable, low in cost and free of wastewater and is an effective way of chromium salt industry to make recycle use and reduce pollution.