139results about How to "Meet high standards" patented technology

The invention relates to an intelligent control technology for electroplating synthetical wastewater, wherein through the steps of pH regulation of wastewater, oxidation, reduction, Cr<6+> filtering, heavy metal capture, settling of suspended solids, ion exchange and sludge treatment, the intelligent synthetical treatment of electroplating wastewater is realized, and the technology has the characteristics of high automation degree and good treatment effect. In the invention, the treatment process is finished by a sequencing bath method in a reactor, two or more reactors alternate to realize timely accurate dosing in the wastewater treatment process as well as real-time detection and control before discharge, the stability, reliability and economy of the wastewater treatment quality are guaranteed, and the wastewater treatment stably meets the requirements of the Discharge Standard for Electroplating Pollutants (GB21900-2008); furthermore, the intelligent unmanned operation can accurately control the wastewater treatment time, the drug adding amount and the wastewater treatment quality, so that the volume of the wastewater treatment equipment is reduced, and the treatment cost is lowered.

The invention provides a nickel-based superalloy for 3D printing and a method for preparing nickel-based superalloy powder and belongs to the technical field of superalloys and additive manufacturing.The nickel-based superalloy for 3D printing and the method for preparing the nickel-based superalloy powder aim at the problem that an unweldable powder nickel-based superalloy is likely to crack inthe 3D printing process. By means of rare earth microalloying, in combination with a vacuum melting, degassing, refining, reasonable parameter atomizing and screening process, the nickel-based superalloy meeting 3D printing needs and the powder thereof are prepared. According to the nickel-based superalloy for 3D printing and the method for preparing the nickel-based superalloy powder, the cracking sensitivity of the unweldable powder nickel-based superalloy is remarkably reduced, a 3D printing process window is widened, and a printed workpiece is free of cracks and excellent in mechanical property; meanwhile, the prepared powder is high in degree of sphericity, good in mobility and small in amount of special-shaped powder, and the yield of the fine powder with the grain size of 15-35 micrometers and the median-grain-size powder with the grain size of 53-106 micrometers is increased; and the need for the high-quality low-cost nickel-based superalloy powder for 3D printing is met

The invention relates to a comprehensive stabilization treatment technology of waste incineration fly ash, aims at the problems of high consumption of lime slurry, large generation amount of fly ash and high treatment difficulty in the smoke treatment process of the waste incineration plant in the prior art and the problems of high chemical adding ratio and low qualified rate of the fly ash in the ordinary stabilization technology, and combines four core technologies of modifying a smoke deacidification agent through a semi-dry process, reinforcing deacidification of smoke through a dry process and pre-stabilizing fly ash, carrying out chemical stable rapid field detection, reinforcing stabilization effect of fly ash and emergently remedying. Through adoption of high-activity, high-efficiency, high-stability and low-dosage chemicals, the comprehensive stabilization purposes of reducing fly ash source, degrading dioxin source, stabilizing components of smoke and fly ash and stabilizing heavy metals in the fly ash are achieved; the fly ash treatment difficulty is greatly reduced; the generation of fly ash is changed into production of fly ash; the purpose of ensuring that the safe treatment rate of the fly ash reaches up to 100% on the premise of controllable cost can be finally achieved.

The invention discloses a mask body forming mechanism. The mask body forming mechanism comprises a machine cabinet and further comprises a guiding mechanism, a folding mechanism, a nose bridge strip mechanism and a fusion welding forming mechanism which are arranged on the machine cabinet and sequentially distributed. The guiding mechanism is used for tightening and guiding incoming materials froma previous station to the folding mechanism according to the preset stacking sequence, the folding mechanism is used for folding the middle portions of the stacked incoming materials, the nose bridgestrip mechanism is used for conducting conveying and tailoring a nose bridge strip into the preset length, the fusion welding forming mechanism is used for conducting fusion welding on the folded formed incoming materials containing the nose bridge strip and cutting the incoming materials into mask bodies with the set size. Compared with the prior art, according to the mask body forming mechanism, through redesign of the nose bridge strip mechanism and the fusion welding forming mechanism, the integral structure is more simple, meanwhile, the mask body forming quality is improved, and higherstandard requirements are met.

The invention relates to an automatic cutting and grinding all-in-one machine. The automatic cutting and grinding all-in-one machine comprises a rack, an automatic cutting device, an automatic rod piece clamping device, an automatic grinding device, a dust collection device, an air cooling system, an air cooling device, an electromagnetic valve and a control cabinet. The automatic cutting device, the automatic rod piece clamping device and the automatic grinding device are each provided with a linear walking device. The cutting work end of the automatic cutting device longitudinally corresponds to a rod piece on the automatic rod piece clamping device, and the grinding work end of the automatic grinding device transversely corresponds to the rod piece on the automatic rod piece clamping device. The automatic cutting device, the automatic rod piece clamping device, the automatic grinding device, the linear walking devices, the dust collection device, the air cooling system and the air cooling device are all connected to the control cabinet, and the starting and shut-down action is controlled by the control cabinet. Cutting and grinding functions are integrated, through control of the control cabinet, cutting and grinding work of the rod piece can be completed in a one-stop manner, and automatic machining of cutting and grinding is achieved; and meanwhile, linear walking structures are adopted, transmission is stable, and plane thickness uniformity of the ground rod piece is good.

The invention discloses a method for automatically sorting and classifying paper, and belongs to a quality detection and sorting method of a paper making process. The purpose is to provide the method that paper is decomposed into a single piece of paper to detect the appearance quality, and the single piece of detected paper is classified and respectively counted by adopting a linking automatic equipment, and then sorted the ream output or the quire output. The method mainly comprises the following steps: quires of flat paper are outputted by utilizing a paper conveying machine in the form of a single piece of flat paper; at the outlet end of the paper conveying machine, the appearance quality of the paper is detected by utilizing a computer visual processing system; the appearance quality of the paper is detected by utilizing a computer visual processing system; the paper is counted and selected; the ream and the quire are sorted to qualified paper; reams or quires of paper are outputted. The invention can be suitable for the quality detection and the sorting and the classifying of various pieces of paper in the paper making production.

The invention discloses stirring equipment specially for metro mortar, and belongs to stirring equipment. The stirring equipment comprises a control chamber, a water tank, an additive tank, a stirring unit, a metering unit, an aggregate storage unit, an aggregate burdening system and a powder storage system, wherein the control chamber, the water tank and the additive tank are arranged at the bottommost layer; the stirring unit, the metering unit and the aggregate storage unit are sequentially arranged from bottom to top; the aggregate burdening system is connected with the lower part of a bucket elevator through a burdening belt conveyer; the upper part of the bucket elevator is connected with the aggregate storage unit; the aggregate storage unit comprises an aggregate storehouse and a bentonite storehouse; the metering unit comprises a liquid metering system; the stirring unit comprises a sand metering hopper, a left-side powder metering hopper, a right-side powder metering hopper and a stirring system; and a bentonite lifting system is arranged on one side of a building body at the upper part of the bentonite storehouse. The stirring equipment can meter stirring raw materials at high precision and guarantee the quality of mortar, is convenient to dismount and mount and extremely high in environment friendliness and can fully meet a requirement of stirring urban mortar.

The invention discloses preparation methods of an imrecoxib intermediate and imrecoxib. The preparation method of N-propyl-N-[2-oxo-2-(4-mesylphenyl)]ethyl-4-methyl phenyl acetamide as the imrecoxib intermediate comprises the following steps of performing substitution reaction on 2-amino-1-p-methylsulfonyl acetophenone and 1-halopropane in a system of an acid binding agent and a solvent to obtain2-propylamino-1-p-methylsulfonyl acetophenone; and enabling 2-propylamino-1-p-methylsulfonyl acetophenone and p-methyl phenylacetyl halide to perform amidation in the system of the acid binding agentand the solvent to obtain N-propyl-N-[2-oxo-2-(4-mesylphenyl)] ethyl-4-methyl phenyl acetamide. The preparation method of the imrecoxib comprises the following step of performing condensation and cyclization reaction on N-propyl-N-[2-oxo-2-(4-mesylphenyl)] ethyl-4-methyl phenyl acetamide in a system of an alkaline matter and a solvent on the basis. The synthetic route provided by the invention enables the reaction process to be more simple and post-treatment separation to be easier and is capable of acquiring ideal yield.

The invention discloses a production method of high straightness super-strength steel. A steel production process route comprises the following steps: pretreatment of molten iron, converter smelting,LF external refining, VD vacuum treatment, continuous casting, heating, rolling, straightening, quenching, tempering, finishing, performance inspection, and flaw detection. The high straightness super-strength steel is characterized by being prepared from the following chemical components in percentage: 0.15 to 0.20 percent of C, 0.15 to 0.35 percent of Si, 1.0 to 1.50 percent of Mn, smaller thanor equal to 0.012 percent of P, smaller than or equal to 0.003 percent of S, 0.010 to 0.030 percent of Nb, 0.015 to 0.040 percent of V, 0.010 to 0.025 percent of Ti, 0.020 to 0.045 percent of Als, 0.040 to 0.60 percent of Cr, 0.10 to 0.30 percent of Mo, 0.20 to 0.50 percent of Ni, 0.0008 to 0.0025 percent of B, smaller than or equal to 0.60 percent of CEV and the balance of Fe and inevitable impurities. The super-strength steel has the characteristics that the production thickness is 6 to 25 mm, the width is 1,500 to 3,800 mm, the yield strength of a steel plate is greater than or equal to 1,100 MPa, the tensile strength is greater than or equal to 1,200 MPa, the elongation percentage is greater than or equal to 11 percent, the impact work at -40 DEG C below zero is greater than or equal to 50 J and the straightness in any direction of the steel plate is smaller than or equal to 3 mm/m.

The invention provides an alclad casting ingot rolling method. The alclad casting ingot rolling method comprises the following steps of firstly feeding a casting ingot and a alclad plate after milling into a rolling gap to enable a casting ingot welding central line and a rolling gap to be coincided, performing static pressure welding rolling and obtaining an alclad casting ingot after first-time rolling; performing second-time rolling on the first-time rolled alclad casting ingot after heating and obtaining a rolled alclad casting ingot, wherein the alclad casting ingot is obtained from the above step; wherein the second-time rolling comprises a structure welding process, a structure improvement process, a depress deformation process and a plate shape control process. According to the alclad casting ingot rolling method, rolling is performed in twice, process parameters are controlled, and the temperature for second-time rolling is fit, so that the surface quality of plates after rolling is stable and surface 11# defects generated during the rolling process are eliminated.

The invention discloses a 690 alloy U-shaped heat transfer pipe production line for a nuclear power evaporator. The 690 alloy U-shaped heat transfer tube production line comprises two adjacent longitudinal spans and a transverse span which is arranged at the ends of the two adjacent longitudinal spans and is adjacent to and perpendicular to the two adjacent longitudinal spans; the whole production line has an n shape; a cogging area, a finished product area, a blend area and other production operation areas are respectively arranged in two adjacent longitudinal span plants (AB and BC spans), and the transverse plant (DE span) is mainly used for span transfer for finished product elongated pipes. The pipe blank enters into the n-shaped factory from one end of the longitudinal plant and is gradually pushed in the communicating area according to the process flow, and the finished products are discharged from the other end of the adjacent longitudinal plant; and the whole process is smooth, and the technical problem that the super-long pipes (28m) need to be repeatedly transferred in multiple production spans can be solved, so that the non-grounded production of the 690 alloy U-shaped pipes is realized, and the continuous and stable operation of the whole production process is guaranteed.

The invention discloses a plate shape control method for steel for a hot-rolled high-strength stirring tank body. The plate shape control method comprises the following steps that (1) hot blanks are charged; (2) plate blanks are heated; (3) rough rolling is conducted, specifically, a 1+5 rolling mode is adopted, the bending amount of C-shaped bending or S-shaped bending of the last pass is controlled within +/-10mm, the wedge-shaped control range is within +/-20[mu]m, and the rough rolling ending temperature is controlled to be 1040-1080 DEG C; (4) finish rolling is conducted, specifically, large convexity value control is adopted for outlets of F1-F4 racks, an equal proportion convexity control mode is adopted for F5-F7 racks, and the finished product convexity control range is 0-30[mu]m;(5) layer cooling is conducted, specifically, a front-section ultra-fast cooling and rear-section air cooling mode is adopted; (6) slow cooling is conducted, specifically, preheating is conducted ina heat preservation wall in advance, and steel coils are discharged from a production line and hoisted into the heat preservation wall for slow cooling; and (7) straightening and flattening are conducted. The steel for the hot-rolled stirring tank body is prepared according to the plate shape control method, the apparent plate shape of a material is good, the warping amount during discharging cutting is less than or equal to 5mm, and the requirements of the welding process of an automobile concrete stirring tank body for the plate shape are completely met.

The invention provides a control method of an intelligent swimming pool. The control method comprises the following steps: setting an upper limit value of a water level in a cold-water storage tank, the lower limit value of a water level in the cold-water storage tank, the upper limit value of water temperature in the cold-water storage tank, and the lower limit value of water temperature in the cold-water storage tank; when the water level in the cold-water storage tank is lower than the lower limit value, starting a water purifying device and injecting purified tap water into the cold-water storage tank; when the water level in the cold-water storage tank reaches the upper limit value, closing the water purifying device and stopping injecting water; and when the water temperature in the cold-water storage tank is higher than the upper limit value, starting the water purifying device and injecting purified tap water into the cold-water storage tank. The control method of the intelligent swimming pool integrates a highly intelligent drainage system, a water feeding system and a cleaning system; when the water temperature, the water level and the water quality do not meet requirements, the swimming pool can automatically adjust; the drainage system, the water feeding system and the cleaning system cooperate with each other, so that the water in the swimming pool reaches the best using state, and the high-standard requirements of the public for the swimming pool are met.

The invention belongs to the technical field of high molecular materials and in particular relates to a glass fiber enhanced PA66 base plate material for a high speed rail and a preparation method thereof. The glass fiber enhanced PA66 base plate material for the high speed rail is prepared from the following preparation raw materials in percent by weight: 28.0-34.0% of PA66 resin, 6.0-10.0% of PA6T resin, 0.6-1.0% of an antioxidant, 0.3-0.5% of a lubricant, 6.0-10.0% of inorganic filler, 1.0-2.0% of a flexibilizer and 49.0-51.0% of glass fibers. The material is low in water absorption and stable in dimension, considers good processing property and mechanical property, is good in toughness, high in strength, good in impact resistance, resistant to ageing, high temperature, high humidity and low temperature and excellent in comprehensive property, and meets the high standard demand of the high speed rail base plate.

A polymer battery encapsulation method, including steps below: setting a PCM board on the upper bottom of a battery cell, to connect the PCM board and the battery cell electrically; clamping the PCM board on a front gluey shell; encapsulating the battery cell with the PCM board and the front glued shell into an aluminium shell; setting a bottom cover on the bottom of the aluminium shell; encapsulating the surface of the outer side of the aluminium shell with label paper. The invention is advanced with simple encapsulation, high productivity effect; the polymer battery cell is safe, secure and reliable in properties, with an appearance satisfied by the clients with high level requirements, with light weight and large upside potential of capacity, and low cost.

The invention discloses special metal glaze for ceramic. The special metal glaze comprises 30-50 parts of zinc silicates, 30-60 parts of brown iron ore, 20-30 parts of nanometer zinc oxide, 20-30 parts of nanocrystalline iron oxide, 15-25 parts of silicon dioxide, 5-10 parts of calcium hydroxide, 10-20 parts of sodium sulfate, 10-20 parts of phosphorus pentoxide and 15-30 parts of piperonyl butoxide. The special metal glaze for the ceramic has the advantages of being high in smoothness, good in glaze quality, high in brightness and attractiveness and the like and can meet the high requirement and standard for high brightness of people.

The invention provides a flame-retardant polypropylene material for a cover of a new energy vehicle battery pack and a preparation method of the flame-retardant polypropylene material. The flame-retardant polypropylene material is obtained by melt-mixing polypropylene with a first additive and a second additive; the introduction of the foaming process enables the product density to be greatly reduced, thereby meeting the lightweight requirements on the cover of the new energy vehicle battery pack. The first additive is prepared from carbon fiber powder, wollastonite powder, hollow glass microbeads, hexamethylenetetramine and other raw materials, and the second additive is prepared from a sodium carboxymethyl cellulose aqueous solution, polyvinyl alcohol, aluminium dihydrogen phosphate, sodium polyphosphate, polyhexamethylene guanide hydrochloride, oxidized modified graphite and other raw materials; the introduction of the above components effectively improves the mechanical propertiesand flame retardant properties of the product, so that the product can satisfy the high standard requirements on the cover of the new energy vehicle battery pack.