This paper brings forth a kind of automatic pressurizing device which can resolve the problem of poor hydraulic support setting load directly without modifying the original hydraulic system excessively. On the basis of the control loop that is designed according to working requirements and conditions to realize automatic pressurization of stand column system, it is divided into pressurizing structure and auxiliary structure. Reserved liquid opening and unit design are used to design the automatic pressurizing device from the principle perspective, and it is also made associated with all units reasonably by improving the details. The automatic pressurizing device combines machinery and hydraulic pressure so that all structural units can finish the expected action and coordinate mutually under the effect of emulsion in order to finally realize the overall function of automatic and fast pressurization. On the basis of the simulated analysis of AMESim hydraulic simulation platform on the control loop and lifting support system loop of support stand column, the working performance of automatic pressurizing device and dynamic characteristics of control loop are simulated. The result after comparing and analyzing the simulation curve and site installation test of underground ZY12000/28/63D support finally shows that the device is able to enhance the setting load to above 30 MPa, which is basically the same with simulation result. It demonstrates that the design of automatic pressurizing device conforms to the expected pressurization requirements and the pressurization effect is significant.

Nickel-titanium (NiTi) alloys are widely used in the medical field due to their excellent strength, biocompatibility, and tribological properties. Additionally, NiTi exhibits unique characteristics such as shape memory and pseudo-elasticity, which confer significant advantages in the manufacturing of components with specific functions. However, friction and wear inevitably occur during service, compromising component performance and potentially necessitating replacement in severe cases. Surface texture effectively modulates tribological performance across micro and macro scales through alterations in surface geometric morphology and microstructure, thereby regulating friction, wear, and lubrication characteristics. Numerous surface texture processing methods are currently available. This paper systematically reviews texture processing methods categorized by machining principle, including conventional methods (turning, milling, grinding) alongside advanced techniques such as laser processing, electrical discharge machining (EDM), abrasive jet machining (AJM), electron beam melting (EBM), electrochemical machining (ECM), chemical etching, and hybrid approaches. The study comparatively analyzes the advantages and limitations of each method while evaluating their respective influences on the tribological properties of resultant surface textures. Furthermore, current challenges and future prospects in NiTi surface texture technology are addressed, offering critical insights for advancing research on texture processing methods and their tribological performance in medical NiTi applications.