51 results about "Flash burn" patented technology

The invention provides a preparation method of an oxide composite nuclear fuel pellet, and belongs to the technical field of nuclear material preparation. The preparation method comprises the following steps: 1) preparing mixed powder: putting oxide nuclear fuel powder and filler powder into a ball-milling tank, adding zirconium dioxide grinding balls, mixing and carrying out ball milling; 2) compression molding: carrying out compression molding on the ball-milled mixed powder, and demolding to obtain an oxide composite nuclear fuel blank; 3) flash burning: electrifying the oxide composite nuclear fuel blank body, applying constant electric fields to two ends of the blank body, simultaneously raising the temperature, and carrying out flash burning when the flash burning temperature is met,wherein the current is a constant current of 0-700mA / mm < 2 >, the field intensity is 0-300V / cm, the flash burning temperature is 25-1000 DEG C, and the flash burning time is 0-600s; and after flashburning is completed, cooling and demolding and obtaining the oxide composite nuclear fuel pellet. According to the method, the constant direct-current electric field is applied to the two ends of theblank by utilizing a flash burning technology, so that the sintering temperature of uranium dioxide or thorium dioxide can be remarkably reduced, the sintering time is shortened and the density of the material is improved.

Using two or more cameras attached to the eyewear, three-dimensional views with accurate and natural depth perception of the working area can be displayed for users, so that the user can maintain healthy sitting or standing posture while working on patients or objects located below horizontal eye level. Additional functions including eye protection, zoom-in, zoom-out, on-off, lighting control, overlapping, and teleconference capabilities are also supported using electronic, video and audio devices attached to the eyewear. The eyewear can also comprise a face shield designed to protect the user from hazardous droplets, aerosols, harmful wavelengths of light, heat, sparks, flash burn, debris and / or flying objects.

The invention discloses a small-equivalent waste propellant flash burning treatment device. The safety treatment problem of waste propellants, used propellants, incomplete propellants and degraded propellants which are generated in the propellant and explosive scientific researching and trial-manufacturing processes is solved. The small-equivalent waste propellant flash burning treatment device mainly comprises a feed conveying device 1, a feeding port 2, an incinerator body 3, an air compressor 4, an igniter 5, an incineration disc 6, a base 7, an exhaust port 8, a feed cooling water inlet 9,a feed cooling water outlet 10, a one-way stop valve 11, an armoured door 12, a hopper13, an incinerator body cooling water inlet 14 and an incinerator body cooling water outlet 15. The small-equivalent waste propellant flash burning treatment device has the advantages that the structure is simple, the safety degree is high, the construction using cost is low, and automatic feeding and long-distance ignition can be achieved, and the small-equivalent waste propellant flash burning treatment device is suitable for airtight safety destruction of the waste propellants in scientific research testsand trial-manufacturing and production processes in the field of propellants.