2results about How to "Meet actual application needs" patented technology

This invention discloses a high-temperature corrosion resistance testing device for processing polycarbonate film, belonging to the field of new material testing technology. It includes a testing chamber with a storage tank for storing corrosive liquid installed on its upper surface. A partition is fixed inside the testing chamber, and a motor is fixed inside the testing chamber below the partition. This high-temperature corrosion resistance testing device for processing polycarbonate film utilizes a movable frame and a shielding plate in its testing mechanism. The movable plate moves up and down, driving a lever to engage with an inclined block, achieving a 30° rotation of the shielding plate. During corrosive liquid spraying, the shielding plate blocks the heating tube, preventing contact between the corrosive liquid and the heating tube from damage or surface scaling that could affect heating efficiency. When the corrosive liquid spraying stops, the shielding plate blocks the atomizing nozzle, preventing residual corrosive liquid from drying and crystallizing at the nozzle tip, thus effectively protecting the heating tube and atomizing nozzle and ensuring long-term stable operation of the device.

The invention discloses an anti-seepage wall defect evaluation method based on near-field dynamics, and relates to the technical field of anti-seepage engineering safety evaluation. The method comprises the following steps: firstly, establishing a defect-containing diaphragm wall structure model, and defining a mechanical equation, defect boundary conditions and load constraints; dispersing the structure into material points, constructing a key connection relation and deducing a micro-modulus coefficient; then deducing a near-field dynamic power control equation, and setting a key fracture criterion and a damage evolution model; introducing a proportional boundary shape function, converting the power control equation into a matrix form balance equation, and solving a dynamic response; and calculating a damage value, and evaluating the safety performance and the remaining service life of the diaphragm wall in combination with the safety index. The advantages of the near-field dynamics and the proportional boundary finite element method are fused, the evaluation precision and efficiency are considered, and reliable technical support is provided for safety guarantee of the diaphragm wall.