3results about How to "Fast sintering" patented technology

The invention discloses a carbon ceramic closing resistor for a high-voltage circuit breaker and a preparation method of the carbon ceramic closing resistor, and belongs to the technical field of power elements. The problems of poor resistor compactness, non-uniform performance, insufficient mechanical property and the like caused by high pressing and sintering difficulty, process instability and high and non-uniform resistor porosity of the carbon ceramic resistor are solved. The preparation process of the resistor comprises the following steps: by taking aluminum oxide and quartz as ceramic phases, presintered kaolin, mullite and potassium feldspar as clay phases and carbon black or graphite as conductive phases, pre-coating the ceramic phases with the clay phases, carrying out vacuum calcination on pre-coated powder, mixing the pre-coated powder with the secondarily added clay phases and the conductive phases, carrying out spray granulation, pressing a green body, sintering and spraying. And obtaining the carbon ceramic closing resistor. According to the invention, the kaolin is pre-sintered, and the clay phase is pre-coated with the ceramic phase, so that the subsequent blank pressing uniformity and density are increased, the structural defects of the carbon ceramic resistor are reduced, and in combination with the spark plasma sintering technology, the batch rapid production of the resistor can be realized.

A radioactive nuclide 137 A rapid remediation device and method for Cs-contaminated soil includes an inlet for adding an activator and raw materials, a power supply, a microwave device, an auxiliary extrusion rod, a pressure plate containing a spray head, and a solid pressure plate. The solid pressure plate is located above the pressure plate containing the spray head, and the power supply and microwave device are positioned above the solid pressure plate. A spray head is provided on the pressure plate containing the spray head, and the auxiliary extrusion rod passes through the solid pressure plate and enters the spray head to extrude it. The spray head contains the activator and raw materials, and the auxiliary extrusion rod pushes the activator and raw materials into the soil. This application's solution combines microwave and solidification technologies to achieve remediation of soil containing radioactive nuclides. 137 Advantages of Cs in soil remediation.

The utility model relates to a rapid sintering device for the surface of a sealing strip. The device comprises an equipment bracket, a spray gun bracket and a spray gun, the equipment support is provided with two spray gun supports, the spray gun supports are in a circular ring shape, the arrangement directions of the two spray gun supports are opposite in the vertical direction, and the spray guns are arranged on the spray gun supports in a sliding mode. According to the utility model, the surface of a product is quickly heated by self-made multi-nozzle gas sintering equipment, and the baking temperature of an oven is increased from 300 DEG C to the flame baking temperature of 1700-2500 DEG C, so that the surface of the product is quickly sintered; the appearance outline of the product is solidified, the problems of smudginess, air holes, belt indentation and the like caused by unsolidified products are effectively solved, and the appearance stability of the product is guaranteed.