83results about How to "No need to control" patented technology

The invention discloses a method for preparing an aluminum alloy anti-corrosion layer and electrolyte used in the method. According to the invention, through micro-arc oxidization, the formed ceramic film layer is divided into an inner compact layer and an outer loose layer, and the inner compact layer is mainly used for providing protection for a substrate; the outer loose layer is filled by utilizing a closing method, so that the thickness of an isolation layer is effectively improved. According to the invention, the adopted micro-arc oxidization electrolyte and the closing liquid have no substances harmful to human body and environment, and are simple in components, easy to control and stable in process. Through adopting a composite salt system, the obtained ceramic film layer is uniform and compact, and has good resistance on all kinds of corrosive mediums.

The invention provides a Fe-Mn double-metal heterogeneous Fenton catalyst taking a molecular sieve as a carrier as well as a preparation method and application of the catalyst. The preparation method comprises the following steps: mixing a MnSO4.H2O solution and a FeSO4.7H2O solution to obtain a mixed system, adding a NaY molecular sieve into the mixed system, uniformly mixing, adding citric acid into the mixed system, carrying out water bath reaction, and drying and calcining viscous substance obtained after the reaction to obtain the Fe-Mn/NaY supported heterogeneous Fenton catalyst which is used for treating papermaking wastewater. The heterogeneous Fenton catalyst prepared by the method can be recycled and easily separated from the waste water; no chemical sludge is generated in the reaction system; the treatment cost is low; the technological process is simple and easy to control; the Fe-Mn double-metal heterogeneous Fenton catalyst has a relatively bright actual application prospect; the pH application range is widened; the dissolution level of iron ions can be reduced; the Fe-Mn double-metal heterogeneous Fenton catalyst can be recycled; by virtue of a synergistic effect of Fe-Mn double-metal ions, the catalytic reaction activity can be improved.

The invention discloses a ground capacitance detection method for a neutral point via arc suppression coil grounding system. A preset type arc suppression coil is in serial or parallel connection with a damping resistor so as to limit the neutral point displacement overvoltage during normal work of a power grid and an electronic power switch is gradually used for rapidly exiting from the damping resistor under the fault state due to the rapid action of the electronic power switch. According to the novel ground capacitance detection method for the preset type arc suppression coil comprising the electronic power switch, the working state of the electronic power switch of the damping resistor is switched through instantaneous control so as to generate the rich frequency component contained disturbance voltage and current pulse and the system ground capacitance is calculated through the disturbance voltage and current signal and the combination with an electronic power disturbance technology based harmonic impedance measurement method for self-tuning of the arc suppression coil.

The laser induced self-spreading high temperature gradient TiNi-TiN material synthesizing process includes the following steps: weighing and mixing metal Ti and Ni powder in the same molar ratio; pressing the mixture into cylindrical sample via maintaining the pressure of 20-50 KN for 1-4 min; keeping the sample at 80-150 deg.c for 1-3 min to eliminate water and partial gas; setting the sample on sample stage inside reaction container, sealing the container, introducing nitrogen in the flow rate of 5-10 L/min for over 2 min, and igniting with CO2 laser and Nd:YAG laser to induce self-spreading high temperature reaction.

The invention provides a preparation method of a calcium chloride cross-linked sodium alginate electrically-driven film. Sodium alginate and calcium chloride are subjected to cross-linking reaction according to certain mole ratio, then glycerinum is added to serve as a modifier, produced solution is subjected to ultrasonic defoaming and vacuum drying treatment and then produces the calcium chloride cross-linked sodium alginate electrically-driven film at one step. The method comprises steps of liquid phase cross-linking reaction, ultrasonic defoaming treatment and high-temperature drying. Themethod is green and environmentally friendly, low in cost, simple in steps, and suitable for large-scale production, ensures that the produced sodium alginate electrically-driven film can replace thetraditional driving structure in the field of flexible machinery and has good tensile strength and flexibility.

The invention discloses a windmill flexible positioning device for a white car body welding production line. The windmill flexible positioning device for the white car body welding production line comprises a rotary table rack, wherein a vertically arranged and rotatable windmill rotary plate is arranged on one side of the rotary table rack; a drive device for driving the windmill rotary plate torotate is arranged on the rotary table rack; multiple positioning stations arranged uniformly are arranged on a plate body of the windmill rotary plate; detachable positioning mechanisms for clampingworkpieces are arranged on the positioning stations; a station switching mechanism for controlling a rotation position of the windmill rotary plate is arranged between the windmill rotary plate and the rotary table rack; and an automatic emergency stop mechanism is arranged between the rotary table rack and the windmill rotary plate. The windmill flexible positioning device for the white car bodywelding production line provided by the invention is simple in structure, easy to maintain, low in cost, easy to control, good in universality, and capable of being adaptable to flexible positioning of multiple platform multi-car switching.

Provided are a wavelength thermal tuning device of an external cavity semiconductor laser and a synchronous thermal tuning method. The wavelength thermal tuning device comprises a semiconductor gain chip, a Bragg raster and a temperature controller. The Bragg raster is arranged along the laser output direction of the semiconductor gain chip. The semiconductor gain chip and the Bragg raster are arranged on the temperature controller. Through design of temperature sensitivity of an external cavity optical path, thermal drift of a laser cavity longitudinal mode is consistent with thermal drift of raster reflection spectra. When the temperature changes, synchronous drift of longitudinal mode distribution and raster reflection spectra is carried out, the laser keeps original working performances, and therefore wide-scope wavelength tuning is achieved. The wavelength tuning capability of a present narrow-linewidth external cavity semiconductor laser is raised.

The invention relates to a pigment extraction technology, in particular to a method of extracting a natural edible pigment. The method comprises the following steps of firstly, extracting a yellow pigment of buddleja officinalis maxim by adopting enzyme-assisted ultrasonic wave so as to obtain filtrate a; secondly, concentrating the filtrate a to 0.25-0.5 time the volume, and extracting through a diphase water system so as to obtain an organic phase; lastly, absorbing and extracting the organic phase through a macroporous resin, concentrating a recovered solvent to obtain yellow liquid, and drying, sealing and packaging the yellow liquid to obtain a product. Through combination of three technologies, the extraction efficiency and the extraction rate of the yellow pigment of the buddleja officinalis maxim are greatly improved, the product purity is improved, processing steps are simplified, and the production cost is reduced.

The invention discloses an intrinsically safe network voice controller for mining, comprising a CPU (central processing unit) circuit, wherein the CPU circuit is respectively connected with a network processing circuit, an SD (Secure Digital Memory) card circuit, two paths of audio coding and decoding circuits, an audio drive circuit and a power supply circuit for supplying power, the two paths of audio coding and decoding circuits are connected with at least one path of audio interfaces through the audio drive circuit, and the SD card circuit is directly connected with the audio coding and decoding circuits. The intrinsically safe network voice controller for mining, disclosed by the invention, is a part of underground digital broadcast of a coal mine, the digital broadcast is transmitted by a network, so that the signal to noise ratio is high, the transmission distance is far, and the digital broadcast has an advantage incomparable to that of the traditional constant pressure broadcast method. The intrinsically safe network voice controller for mining is suitable for such occasions as an underground sidewalk of mine, a parking place and a rest room, etc.

A storage software testing method is provided. In the method, a terminal device controls the remote device to start the storage software, and the remote device monitors the process and continuously feeds back the process state information to the terminal device so as to inform the process to be on-line or hung up, so that the terminal device automatically controls the execution of the test scriptin turn according to the real state of the process. If the process hangs up, the remote device automatically backs up the dump file and log file of the test script being executed when the process hangs up, and tries to restart the process; When the process hangs up, the terminal device creates a tag file and waits for the process to restart before executing the next test script until all the testscripts for the storage software are executed. It can be seen that this method can realize the automatic test of storage software, without manual control, reduce human cost, avoid human error, and greatly improve the test efficiency.

The invention discloses vehicle window glass and a preparation method thereof and a vehicle, the vehicle window glass comprises a glass body, the glass body is provided with an outer surface and an inner surface which are opposite to each other, and the glass body is provided with a signal transmission part for a signal of an optical sensor to pass through; an infrared anti-reflection structure formed through laser etching is arranged on the outer surface of the glass body, and in the thickness direction of the glass body, the projection of the infrared anti-reflection structure on the signal transmission part covers the signal transmission part. According to the technical scheme provided by the invention, the signal transmittance of the optical sensor can be improved, and the working requirements of the optical sensor in the fields of intelligent driving and the like are met.

The invention relates to a novel method for improving the moisture absorption performance of kapok fiber by using corona treatment technology to modify the surface of the kapok fiber. The method comprises the following steps: subjecting the kapok fiber to pretreatment with a mixture of 6 to 10 g/L of hydrogen peroxide and 4 to 8 g/L of tetraacetyl ethylenediamine (TAED) so as to remove wax and impurities on the surface of the kapok fiber, which allows the kapok fiber to have certain whiteness; and then combing the kapok fiber having undergone pretreatment and then placing the kapok fiber on a corona discharge instrument for discharging treatment of the kapok fiber, wherein treatment voltage is 6 to 12 kV, treatment time corresponding to each group of treatment voltage is 5 to 20 s/cm<3>, and treatment temperature is 30 to 110 DEG C. According to the invention, active groups like hydroxyl groups, carboxyl groups, epoxide groups and peroxide are creatively introduced onto the surface of the kapok fiber having undergone corona treatment, so the properties like moisture absorption, dyeing and bonding properties of the surface of the kapok fiber are effectively improved.

The invention discloses a ultrathin piece material microwave drying device. The ultrathin piece material microwave drying device comprises a frame, wherein a microwave inhibitor and a heating device are mounted on the frame; the microwave inhibitor is connected with the heating device; a wave guider is mounted on the heating device; and a microwave magnetron is mounted on the wave guider. The frame comprises a back frame, a middle frame and a front frame connected in sequence, wherein microwave inhibitors are respectively mounted on the back frame and the front frame; a heating device is mounted on the middle frame; and the microwave inhibitors are connected to the two ends of the heating device. The ultrathin piece material microwave drying device can be specifically applied to a rolling method slice production line to dry rolled wet slices as dry slices with stated water content, and can be applied to high-speed drying places of other ultrathin piece materials.

The invention discloses a synthetic method of 2-((1-benzyl-4-piperidyl)-hydroxy-methyl)-5, 6-dimethoxy-1-indanone, which comprises the following steps of: 1) synthesizing 4-methyl piperidinecarboxylate with methanol, thionyl chloride and 4-nipecotic acid, carrying out benzylation on benzyl chloride taken as benzyl and triethylamine to obtain N-benzyl-4-methyl piperidinecarboxylate; 2) reacting the N-benzyl-4-methyl piperidinecarboxylate with 5, 6-dimethoxy-1-indanone under the catalysis of sodium methoxide to obtain 2-(1-benzylpiperidine-4-carbonyl)-5, 6-dimethoxy-1-indanone; 3) carrying out reducing reaction on the 2-(1-benzylpiperidine-4-carbonyl)-5, 6-dimethoxy-1-indanone with sodium borohydride in methanol to obtain the 2-((1-benzyl-4-piperidyl)-hydroxy-methyl)-5, 6-dimethoxy-1-indanone; and the reaction formula is shown in the specifications. The synthetic method has the beneficial effects that the defects of the prior art can be overcome, the product purity can be further improved, and the production cost can be reduced.

The invention discloses a device and method for making straight edge holes in an outward-flanging mode and belongs to the technical field of local formation of sheet materials or pipe fittings. The outward hole flanging device comprises a replaceable chamfering grinding wheel, a rotating spindle, a hole flanging eccentric wheel and an opening drill bit; the replaceable chamfering grinding wheel is fixed to the spindle, and the upper end of the rotating spindle is clamped to a chuck of a drilling machine or a numerically-controlled machine tool; the hole flanging eccentric wheel is fixed to the rotating spindle, relative movement and locking with the spindle is achieved through an internal inclined slideway and a bottom groove, the appearance of the component is divided into a conical segment and a cylindrical segment, and pre hole flanging and shaping are achieved through the matching function. Compared with the prior art, four processes of hole opening, chamfering, hole flanging and shaping are completed at a time, and overall machining efficiency is improved; hole flanging is achieved through eccentric rotating motion of an eccentric wheel, the spindle only needs to rotate and move up and down, and the motion difficulty of a hole flanging tool is remarkably lowered.

The invention discloses a production process of brominated SBS, and belongs to the technical field of flame retardant production, and the production process comprises the following steps: adding SBS and isobutanol into a reaction kettle, heating to 20-40 DEG C, stirring, and keeping the temperature until the materials are completely dissolved; adding sodium bromide, introducing oxidizing agent chlorine, filling lime milk at the tail end of the reaction kettle to absorb unreacted chlorine in the reaction kettle, and heating to 60-75 DEG C and then stopping heating; cooling to 20 DEG C, adding acatalyst, and continuously heating to 75 DEG C to react for 1 hour, wherein the catalyst being tin tetrachloride and ferric trichloride; and cooling to room temperature, adding peroxide and alkali metal alkoxide into the material liquid after the reaction is finished, heating to 30-40 DEG C, keeping the temperature for 2 hours, filtering, washing, removing impurities, and drying to obtain the target product brominated SBS, wherein the peroxide is hydrogen peroxide, and the alkali metal alkoxide is sodium methoxide. The preparation of the brominated SBS is realized by adopting a direct bromination method, the reaction is mild, the bromine content, the yield and the thermal stability of the brominated SBS are improved, and the use requirements are met.

The invention relates to the technical field of electronic cigarette production and discloses a production device and method for electronic cigarette foam. The production device comprises a mounting plate, a foam feeding mechanism, a housing feeding device, a foam carrying mechanism, a foam loading mechanism, a housing carrying mechanism and a discharging carrying mechanism, wherein the foam feeding mechanism, the housing feeding device, the foam carrying mechanism, the foam loading mechanism, the housing carrying mechanism and the discharging carrying mechanism are arranged on the mounting plate; the foam loading mechanism is positioned in the middle of the mounting plate; the foam feeding mechanism is positioned on the side of the foam loading mechanism; the foam carrying mechanism is connected with the foam feeding mechanism and the foam loading mechanism; the housing carrying mechanism is connected with the housing feeding device and the foam loading mechanism; and the dischargingcarrying mechanism is positioned on the discharging side of the foam loading mechanism. The foam feeding mechanism is used for feeding in a carrier tape mode, so that feeding is reliable and stable; and the foam loading mechanism is used for assembling the foam at the upper end and the lower end at the same time, so that the production efficiency is improved, and the production success rate is higher.

The invention discloses a medical supercritical carbon dioxide sterilization system. The medical supercritical carbon dioxide sterilization system comprises a machine shell; five placement cavities communicated with the outside are formed in the machine shell; a disinfection cavity is formed in the right end wall of each placement cavity; a detection cavity is formed in the rear end wall of each disinfection cavity; and a self-locking cavity is formed in the upper end wall of each detection cavity. The sterilization system is provided with a grabbing mechanism, a storage mechanism and an execution mechanism; by means of a support arranged on the grabbing mechanism, a push rod can be pressed down, a tool protrudes, a clamping block and an active clamping block can grab the tool conveniently, the whole device can be fixed through the support, labor time is saved, the safety of people is improved, secondary pollution caused by manual participation is reduced, manual supervision and control are not needed, and efficiency is improved; and by means of an arranged pressure sensor, the storage amount in a plastic film pipe can be judged by making contact with the plastic film pipe through the pressure sensor, so that a sucking pump and a relay are controlled, inflation is completed, supplementation of the plastic film pipe is completed, the device can also be used for disinfecting objects placed in the placement cavity, and manual supervision and starting are not needed.

The invention provides a sulfur elements analysis auxiliary treatment device and a method for eliminating influences of high content nitrogen elements. The device comprises a three-way reaction tube.A first inlet of the three-way reaction tube is connected with an ozone supply source. A sample gas inlet pipeline is connected with a second inlet of the three-way reaction tube, and is used for accessing sample gas subjected to high temperature catalytic oxidation. An outlet of the three-way reaction tube is connected with a sample gas outlet pipeline, and is used for feeding the sample gas intoa sulfur element detection device. The ozone entering the three-way reaction tube from the first inlet can react with the sample gas entering the three-way reaction tube from the second inlet, and the reacted sample gas enters a sulfur element detection link through the outlet of the three-way reaction tube, so that influences on the detection result of the nitrogen elements can be eliminated.