4results about How to "Reduce pitting" patented technology

A method for preparing a microtextured electroplated coating of nano-silica capsules loaded with corrosion inhibitors is disclosed. This invention addresses the problems of insufficient corrosion resistance, poor water dispersibility of nano-silica, and poor compatibility between corrosion inhibitor loading and electrodeposition in existing microtextured coatings. The preparation method includes: 1. Hydrophilic modification of hollow nano-silica using an aminosilane coupling agent; 2. Adding a corrosion inhibitor to the hydrophilically modified hollow nano-silica dispersion and stirring to prepare nanocapsules; 3. Preparing a composite electroplating solution; 4. Performing electro-cleaning pretreatment on the substrate; 5. Preparing the composite coating on the substrate using an electroplating process. This invention achieves stable dispersion of nano-silica in an aqueous plating solution through hydrophilic modification, facilitating its entry into microtextured cavities. Utilizing the directional loading and responsive release mechanism of the corrosion inhibitor, long-term protection is achieved, significantly reducing the risk of pitting corrosion and interface failure, exhibiting long-lasting corrosion inhibition performance and self-healing ability.

This invention relates to the field of composite coating technology, specifically to a composite coating for an aluminum-silicon wire submerged roll, its preparation method, and its application. The method involves sequentially depositing CoCrW, CoCrW-Ca2SiO4, Ca2SiO4, and Si-SiC, or sequentially depositing Ca2SiO4 and Si-SiC, on the surface of the submerged roll using atmospheric plasma spraying (APS). Subsequent machining then yields a four-layer CoCrW / CoCrW-Ca2SiO4 / Ca2SiO4 / Si-SiC composite coating or a two-layer Ca2SiO4 / Si-SiC composite coating (hereinafter referred to as the composite coating) with a specified surface roughness. The composite coating prepared by the method described in this invention can withstand temperatures up to 900℃ and possesses excellent wear resistance and aluminum-silicon corrosion resistance, significantly improving the lifespan of the submerged roll.

The utility model provides a kind of straddle type monorail split type driving system, bogie and vehicle, it is related to railway vehicle technical field, straddle type monorail split type driving system is set on the frame of vehicle bogie;Straddle type monorail split type driving system includes driving motor, brake device and gear box;The output shaft of driving motor is connected with the input shaft of gear box;Brake device includes brake clamp and brake disc;Brake disc is located between driving motor and gear box, and is installed on input shaft;Brake clamp is installed on the frame of vehicle bogie.Separate by split type structure, brake disc as intermediate node can absorb part of vibration energy, while the heat dissipation space of motor and gear box does not interfere with each other, effectively reduce the mutual interference of internal vibration and heat of driving system, reduce the crack risk of motor winding insulation layer due to vibration, delay the occurrence of gear tooth surface pitting and gluing phenomenon.

The utility model discloses a starting motor for a high-power motorcycle, which relates to the technical field of motors and comprises a casing, two ends of the casing are sleeved with a front end cover and a rear end cover respectively, the rear end cover and the front end cover are respectively provided with two threaded holes, screws are arranged in the four threaded holes in a threaded manner, and the front end cover and the rear end cover are connected with the casing. A magnetic steel support is fixedly arranged in the machine shell. Through the arrangement of the abutting columns, the connecting shafts, the conical blocks, the wedge-shaped rods, the thermal expansion metal rods and the sleeve rods, the internal heat of the machine shell is judged according to the thermal expansion metal rods so as to adapt to expansion, the number of the abutting columns moving upwards is correspondingly adjusted, and therefore the radial internal clearance reduced by heating expansion of the output shaft is compensated; the output shaft can still keep the optimal radial clearance at the high temperature, vibration is reduced, the running stability is improved, the pitting corrosion and abrasion speed is reduced, and therefore the service life of the output shaft and the service life of the bearing are prolonged.