7results about How to "Low cleanliness" patented technology

This application relates to the field of material sealing technology, and particularly to a high-performance insulating ceramic sealing method for neutron tubes. The method includes: sequentially performing organic solvent ultrasonic cleaning and argon plasma etching activation treatment on the sealing surface of a cylindrical high-purity alumina ceramic part, followed by magnetron sputtering deposition of a titanium transition layer to obtain a ceramic part with a titanium transition layer; acid washing to remove the oxide layer from the sealing surface of a Kovar alloy cylindrical flange, followed by cleaning and drying to obtain a metal sealing part; preparing an active brazing filler metal sheet; sequentially assembling the sheet to form a pre-assembled assembly; placing the pre-assembled assembly in a vacuum brazing furnace, applying axial preload to complete the sealing, followed by controlled cooling to form a sealing part with an airtight brazed joint; and annealing to obtain the finished sealing assembly. This method solves the problems of low dielectric strength, large differences in thermal expansion coefficients, and difficulty in controlling interface quality in existing technologies.

The utility model discloses a protection device, and belongs to the technical field of continuous casting pouring, one end of the protection device is concavely provided with a hole cavity used for containing a long nozzle of a tundish, the end of the protection device extends along the outer side in the circumferential direction to form a port section with an inclined plane, and the other end of the protection device is in a pointed cone shape. The port section is used for blocking liquid when the other end of the protection device is inserted into the liquid. The hole cavity can be in butt joint with the long nozzle of the tundish, in this way, after replacement, the long nozzle of the tundish does not make direct contact with molten steel any more, when the long nozzle is inserted into the molten steel, the covering agent is expanded to the periphery through the pointed cone-shaped structure, then the molten steel and the covering agent are expanded to the outer side in the circumferential direction through the end opening section, blocking is formed, and therefore the long nozzle of the tundish can be conveniently replaced. In this way, in the process of replacing the long nozzle of the tundish, the covering agent can be effectively blocked on the outer side of the molten steel, it is avoided that the cleanliness of the molten steel is reduced, and therefore the casting blank quality is guaranteed.

The utility model discloses a stone aggregate washing device which comprises a washing pool, a filtering partition plate is welded in the washing pool, and two shaft seats are fixed to the left side of the top face of the washing pool. According to the washing device, the washing pool is divided into the two cavities through the filtering partition plate, the rolling barrel is located in the cavity on the left side of the washing pool, and the motor drives the connecting shaft on the shaft seat to rotate through the transmission belt, so that the connecting shaft drives the rolling barrel to rotate in the cavity on the left side of the washing pool; due to the fact that the lower portion of the rolling barrel with the filter screen on the surface is immersed in water in the washing pool, the rolling barrel in the rotating state is subjected to washing treatment under the stirring effect of a plurality of stirring blades on the inner side face of the rolling barrel, impurities attached to stone aggregate are dissolved in the water, and the impurities are removed through a water pumping pipe, a water pump, a comb tooth pipe and a spray head which are arranged in a right cavity of the washing pool. Compared with the prior art, the stone aggregate water washing device has the advantages that the stone aggregate water washing requirement is met, and meanwhile, the water is easily recycled.

The application provides a vehicle control method, device, system and vehicle. When the trunk kitchen is in a cooking mode, the vehicle control method determines an air outlet amount of a first target air outlet of the vehicle based on a temperature distribution of a trunk kitchen area, controls the first target air outlet to work according to a working parameter of the first target air outlet, and the working parameter of the first target air outlet includes the air outlet amount. According to the temperature distribution of the trunk kitchen area, the smoke generated in the cooking process through the trunk kitchen can be sensed in the first time, the smoke is blown away by the positive air pressure in the vehicle generated by the blowing of the first target air outlet, the experience of the cooking personnel is improved, the risk of the smoke spreading into the vehicle is reduced, and the influence of the smoke on the cleanliness and comfort of the vehicle interior is reduced.

The utility model relates to circulating device field especially relates to a numerical control lathe swarf liquid circulating device, including the recycling box and the circulating component, the inside installation of recycling box is used for the recycling recycling use of fully processing swarf liquid circulating component, and the circulating component includes the composite filter screen, storage bin, liquid outlet pipe, docking disc, filter ring, solenoid valve, connecting plate, recycling disc, charging frame, and the inside of recycling box is provided with recycling groove, and the inside symmetry of recycling groove is equipped with the composite filter screen, and the outer end corner of composite filter screen is equipped with the limiting bolt, and the composite filter screen is fixed with recycling box thread through limiting bolt, and the inside of recycling box is located composite filter screen one side and is provided with storage bin, and the inner wall symmetry of recycling groove is provided with multiple groups of guide grooves, the utility model discloses through adopting the composite filter screen to the multistage full filtration separation of swarf liquid, effectively screens out the swarf in cutting fluid, reduces the residual of metal scrap in recycling cutting fluid, guarantees the cleanness of recycling cutting fluid, improves the filtration effect.

The utility model discloses a kind of multistage countercurrent washing and circulating water-saving soybean cleaning device, it is related to soybean processing technical field, including primary rough cleaning tank, secondary fine cleaning tank, tertiary rinsing tank, conveyor, water circulation system and bubble generator;Water circulation system includes water pump, water suction pipe, conveying main pipe and filter box, another end of conveying main pipe is communicated with two water supply branch pipes by three-way pipe;The design can improve the utilization of cleaning water by the synergistic effect of multistage countercurrent washing and water circulation system, and the cleaning, conveying, water circulation, impurity separation function is integrated, the grading process of rough cleaning, fine cleaning and rinsing can be realized, the countercurrent design ensures that soybean with low cleanliness contacts water with low cleanliness, soybean with high cleanliness contacts water with high cleanliness, completely avoids cross contamination, further improves the cleanliness of soybean after cleaning, and the land area is small, adapt to the continuous production demand of modernization food enterprise.

A piston ring casting shakeout equipment relates to the field of shakeout device, including shakeout machine base, shakeout box, vibration motor and fixed support, the shakeout machine base is fixedly connected with the both sides of shakeout box outer wall, vibration motor is equipped with two, two vibration motors are fixedly connected on the both sides of shakeout box outer wall, the both ends of fixed support are fixedly connected with the inner wall of shakeout box, the inside of shakeout box is equipped with swing shearing sand cleaning screening part, the screen hole anti-blocking part is equipped on swing shearing sand cleaning screening part, the beneficial effect lies in: the piston ring in shakeout box is turned over in shakeout box, makes the sand adhered on piston ring directly contact the vibrating screen plate, through directly contacting vibrating screen plate makes the sand adhered on piston ring more easily fall off, avoids the sand adhered on piston ring cleaning degree low caused by the sand on part of piston ring not contacting vibrating screen plate, thereby improves the efficiency of shakeout.