3results about How to "Maintain mechanical strength" patented technology

This utility model belongs to the field of gasket technology, specifically disclosing a self-tightening sealing gasket with adjustable thickness. The utility model includes a first gasket body and a second gasket body, with a thickness adjustment assembly between them. The thickness adjustment assembly includes a stacking unit and a fixing unit. The stacking unit includes an adjusting piece, which adjusts the thickness by stacking. The thickness adjustment assembly allows for flexible thickness adjustment by increasing or decreasing the number of adjusting pieces, adapting to the installation gaps of different devices. Furthermore, the corresponding insertion structure of the limiting block and the corresponding insertion hole / slot, along with locking bolts, securely fixes the first gasket body, the second gasket body, and the adjusting piece. This ensures both thickness adjustment and overall structural stability, preventing displacement or loosening of the adjusting piece under pressure or vibration, thus maintaining the gasket's mechanical strength and sealing performance.

The utility model relates to the field of crucible fixing, disclose a kind of for electron beam horizontal smelting furnace's crucible fixing structure, including frame, the top of the frame has two groups horizontal crucible, the inner wall of the frame is equipped with multiple groups double-end equal-length stud, the top of the frame is provided with multiple groups first support seat, the top of each group first support seat is respectively provided with a group first crucible pressing plate, multiple groups first crucible pressing plate and multiple groups first support seat are respectively sleeved in the outer wall of a group double-end equal-length stud.The utility model reserves necessary deformation space by the cooperation between groove and crucible outer buckle and crucible inner buckle, effectively relieves the internal stress caused by the difference of expansion coefficient, key components can be reused, not only play to the extreme crucible body life, also greatly reduce the spare parts procurement cost, reduce the risk of damaging crucible due to difficult disassembly, improve the safety and efficiency of maintenance operation.

This invention belongs to the field of superconducting wire technology and relates to an enameled superconducting round wire and its preparation method. The invention provides a method for preparing an enameled superconducting round wire, comprising: coating a bare NbTi superconducting wire with 20-25 passes of modified acetal varnish, followed by 5-10 passes of acetal varnish coating; wherein the modified acetal varnish is a mixture of acetal varnish, citrate, and β-cyclodextrin in a mass ratio of 100:0.2-1.3:1-3. The modified acetal varnish provided by this invention, by simultaneously adding citrate and β-cyclodextrin to the acetal varnish, can effectively improve the thermal conductivity and low-temperature resistance of the enameled superconducting round wire.