31results about How to "Long continuous service life" patented technology

The invention provides a coating special for a counterreconnaissance device fabric and a manufacturing method thereof and the fabric. The coating can be an inorganic printing coating. The coating comprises, by mass percentage, 5% of emulsifier, 0.3-0.5% of antifoaming agent, 1.0-1.5% of dispersing agent, 23-43% of disguised functional inorganic pigment, 20-33% of coating printing adhesive, 3-8% of thickener, and the balance water; and finally the coating with a mass percent of 100% is obtained. The coating achieves functions of visual reconnaissance prevention and near infrared surveillance prevention. The coating is an inorganic coating, and the problems that the environmental pollution is caused by previous printing of a camouflage fabric through an organic dye for clothes, tents and weapons and coating printing easily leads to aging and short service life are solved. Besides, in the printing production process, ageing color development and alkaline removal flooding treatment do not need to be performed, and compared with a conventional dye printing method, the coating generates fewer harmful substances and is lower in environmental pollution.

The invention discloses an intelligent whole-process temperature control steam curing kiln. The intelligent whole-process temperature control steam curing kiln comprises a kiln body, a regulation mechanism arranged inside the kiln body and used for regulating temperature and humidity, and a control module arranged outside the kiln body and used for controlling the regulation mechanism to obtain a suitable kiln body interior environment. The regulation mechanism comprises a temperature regulation module and a humidity regulation nodule, wherein the temperature regulation module is used for regulating temperature when temperature imbalance occurs, and the humidity regulation module is used for regulating humidity when humidity imbalance occurs. According to the intelligent whole-process temperature control steam curing kiln, dense air cocks, temperature sensors and humidity sensors are arranged in the kiln body and then regulated through the control module, so that better intelligent control is achieved, production of high-quality products is ensured, and the product percent of pass is increased to 99.99%; besides, overhaul is not needed in the use process unless the continuous service life reaches 12 months or above.

The invention relates to a ladle permanent lining and a manufacturing method of the ladle permanent lining, and belongs to the technical field of ferrous metallurgy ladle lining fireproof material. The ladle permanent lining is laid on the inner wall of a shell (6) of a ladle and sequentially comprises a ladle bottom permanent lining (1), a ladle wall permanent lining (3) and a ladle nozzle permanent lining (10) from bottom to top. The ladle permanent lining is characterized in that the ladle permanent lining is manufactured by minimum-inflation artesian flow castable in a segmented casting mode, an overall casting forming die is not used, and the ladle permanent lining and a bricked working lining are constructed synchronously. The technological process of repairing and laying the ladle lining is simplified, the problem that in the prior art, the bricked working lining leaks steel because the high-aluminum artesian flow castable shrinks in the hardening process is solved, compared with the prior art, the service life of the ladle working lining is prolonged by 150 furnace round-200 furnace round, and the cost of ladle fireproof material is reduced by over 15%.

The invention discloses a mechanical clamping mechanism capable of precisely adjusting the clamping inclination angle, which includes a positioning mechanism, a motor slot, a supporting mechanism, a dial, an insertion slot and a limit card seat, and the side end surface of the support mechanism passes through the insertion slot The symmetrical rotation snaps into the limited card seat. The present invention can drive two sets of connecting worms to rotate through the fixed motor when adjusting the angle of the clamping workpiece. When the connecting worms rotate, since the connecting worms and the connecting worm gears are meshed, the positioning mechanism can be driven to turn over at the top of the supporting mechanism. , so as to accurately adjust the angle of the workpiece flipping and clamping, and the adjustment method of thread engagement can effectively improve the accuracy and stability of the subsequent adjustment of the clamping angle. The perimeter is programmed, which further improves the accuracy of angle adjustment when clamping the workpiece, reduces the error of manual adjustment, and improves efficiency.

The invention relates to an electrolytic type ozone generator and a process for preparing a cathode catalyst layer of the electrolytic type ozone generator. The electrolytic type ozone generator comprises a round Nafion film, a round anode component and a round cathode component which are arranged on two axial sides of the Nafion film. The electrolytic type ozone generator adopts a diamond electrode which is doped with porous boron as an anode, the cathode catalyst layer adopts a process for preparing platinum-on-carbon and an electrolysis chamber for preparing ozone is optimally designed, notonly the performance is greatly increased, but also the current efficiency of a borocarbon electrode to produce the ozone is greatly increased, the current efficiency can reach 30% under room temperature to the maximum, and the continuous service life of the electrodes can be greatly prolonged compared with lead dioxide electrodes which are used in a large number at present.

The invention relates to a repair mode for a circumferential weld in a ladle slag line part. The minimum residual thickness permitted by a circumferential weld is h, the residual thickness of a slag line brick on the upper part of the circumferential weld is greater than or equal to 150mm, and the thinnest part of the circumferential weld is opened and the thickness h1 is measured first; if h1 is greater than or equal to h, smearing repair is adopted; if h1 is smaller than h, repair is performed by adopting a mending method by replacing a damaged part; the mending method by replacing the damaged part comprises the following steps of: S1, removing the part of the circumferential weld, the thickness of which is smaller than h, along the circumferential weld, and in the removing process, setting a plurality of pivot points between upper available bricks and lower available bricks; S2, thoroughly cleaning and smoothly modifying the lower surfaces of the upper available bricks and the upper surfaces of the lower available bricks; S3, performing bricklaying by using repair bricks; S4, closing the circumferential weld; and S5, baking the repaired ladles according to a bake curve which is slightly modified for later use. According to the repair mode provided by the invention, the circumferential weld part is only removed and repaired, so that the integral structure of a ladle refractory material is retained to the maximum extent, and therefore, the consumption of the ladle refractory material of steel per ton is reduced, and the repair mode is energy-saving, low-carbon and environmental-friendly.

The invention provides a method for preparing hydroxycitronellal, which comprises the steps of preparing a solid dehydrogenation catalyst; the preparation of the solid dehydrogenation catalyst: adopts zeolite as a carrier to support the dehydrogenation catalyst. The zeolite supports an alkali metal oxide, and the alkali metal oxide can be K 2 O, Rb 2 O, Cs 2 Any one of O, preferably K 2 O, Cs 2 O, the mass ratio of the loading amount of the alkali metal oxide to the zeolite is: 0.001˜0.01:1, preferably 0.006˜0.008:1. The invention has simple process and high efficiency; the loaded solid dehydrogenation catalyst has easy-to-obtain raw materials, high catalytic activity and low reaction temperature.

The invention provides a kind of cold cathode light tube, it includes cold cathode light tube, lamp holder, control circuit. The cold cathode light tube is set o the lamp holder, the lamp holder connects with the control circuit; the cold cathode source is used as the lamp-house of the lamp, it connects with the solar battery and transforms the solar energy into electric energy.

A plasma synthetic jet generator with controllable cavity temperature and its application. The nozzle includes: a heat conduction support structure, a heat pipe, a cavity, electrodes and a DC high-voltage pulse power supply; wherein the electrodes include an anode, a cathode and an excitation electrode; The cavity, the electrode and the DC high-voltage pulse power supply constitute a plasma synthetic jet generator; the heat management component includes the heat-conducting support structure and heat pipes; the DC high-voltage pulse power supply and the electrode are connected through wires ; The electrode forms a high-frequency arc under the excitation of the DC high-voltage pulse power supply. In one excitation cycle, the arc heats the gas in the cavity, and sprays it into the main flow through the oblique hole in the cavity, and the high-temperature gas is ejected Afterwards, the density in the cavity decreases and the temperature rises, and the mainstream gas is sucked into the cavity through the oblique hole of the cavity to form a working cycle; the heat management component conducts the high temperature of the cavity to the cold end of the heat pipe, which can The temperature in the cavity is lowered, thereby increasing the density in the cavity. The invention greatly improves the momentum of jet flow ejected from the plasma synthetic jet flow generator.

Disclosed are a bipolar three-dimensional electrode catalyst packing and a preparation method thereof. The bipolar three-dimensional electrode catalyst packing comprises, by weight percent, 70-90% of pottery clay, 10-30% of gamma-Al2O3, and 3-10% of metal active component accounting for total amount of the pottery clay and the gamma-Al2O3. The bipolar three-dimensional electrode catalyst packing is large in surface area, high in catalytic activity, low in unit COD (chemical oxygen demand) energy consumption, less prone to active component losing, long in continuous service life and the like.

The invention relates to a steel ladle composite working lining and a repairing method for a slag line position thereof. The steel ladle composite working lining comprises a steel ladle shell, a permanent lining insulating refractory plate and permanent lining castable are arranged on the inner wall of the steel ladle shell, the upper portion of the permanent lining castable at the ladle bottom is provided with ladle bottom working lining castable, ladle wall working lining castable, a slag line part, single-ring ladle opening bricks and ladle edge castable from bottom to top, and water gap seat bricks and air permeable seat bricks are arranged in the ladle bottom working lining castable; the slag line part is arranged to be divided into an inner ring and an outer ring, and the inner ring comprises slag line bottom inner ring bricks and slag line inner ring alumina-magnesia-carbon bricks from bottom to top; the outer ring comprises slag line bottom outer ring bricks and slag line outer ring magnesia-carbon bricks from bottom to top. When the slag line position of the steel ladle composite working lining is subjected to the first minor repair, the second minor repair and the first medium repair, the used slag line bottom inner ring bricks and the slag line inner ring alumina-magnesia-carbon bricks are reserved, only the slag line bottom outer ring bricks and the slag line outer ring magnesia-carbon bricks are dismantled and replaced, and therefore the consumption of the working lining slag line magnesia-carbon bricks is reduced.