2results about How to "Guaranteed cohesion" patented technology

This invention discloses a 5052 aluminum alloy cavity for semiconductor devices and its preparation method, relating to the field of aluminum alloy material technology. Specifically, it includes the following steps: S1: First, the 5052 aluminum alloy ingot undergoes a two-stage homogenization treatment, followed by a three-stage free forging process, and finally, spray cooling and air drying to obtain a shaped cavity substrate; S2: After plasma cleaning, the shaped cavity substrate is subjected to magnetron sputtering technology to sequentially deposit a transition layer, a barrier layer, and a functional layer on its inner surface to obtain the 5052 aluminum alloy cavity for semiconductor devices. The 5052 aluminum alloy cavity prepared by this invention can greatly ensure the stability and purity of the prepared aerospace semiconductors, meeting the manufacturing needs of high-performance chips for aerospace applications, and is of great significance.

This invention provides a pile foundation structure for offshore wind turbine towers, belonging to the field of offshore wind power technology. The pile foundation structure includes a pile cylinder extending vertically along its axis and cast-in-place piles fixedly installed at the bottom of the pile cylinder. The pile cylinder and the cast-in-place piles are coaxially arranged. Each cast-in-place pile includes a pile tube. Multiple support fins extending along the axial direction are fixedly installed on the outer wall of the pile tube, evenly distributed along the circumference of the pile tube. A protective cylinder is slidably sleeved on the outer wall of the pile cylinder. A fixing plate is fixedly sleeved on the outer wall of the pile cylinder, located above the protective cylinder, to limit the movement of the protective cylinder along its axial direction. A protective frame is fixedly sleeved on the bottom of the outer wall of the protective cylinder. The protective frame includes a fixing disc coaxially arranged with the protective cylinder. Two sets of protective components are fixedly installed at the bottom of the fixing disc to prevent the pile cylinder from sinking and tilting due to geological changes after long-term use.