8results about How to "Reduced insulation performance" patented technology

The utility model discloses a heating tube sealing structure and baking tray, aim at solving the existing heating tube seal not thoroughly, the assembly stability is poor and so on. The structure contains heating disc, its inside is equipped with magnesium oxide filler, and the first, second heating tube cold needle is projected with respectively two ends, and there is the heating wire that penetrates heating disc and is wrapped by magnesium oxide filler between two cold needles. In addition, still be equipped with first conducting rod subassembly and second conducting rod subassembly, two respectively with the both ends sealed connection of heating disc. This design through both ends conducting rod subassembly and the close seal of heating disc, can bear the gas expansion pressure in pipe, prevent gas leakage, maintain the pressure balance in pipe, enhance the sealing reliability, effectively solve the sealing problem caused by gas expansion. Meanwhile, the structure reduces the dependence on the size precision of single component, even if the size error exists in component processing, can realize good sealing connection, reduces the unstable situation of assembly caused by size deviation, improves the stability and success rate of assembly.

This invention discloses a high-performance meta-aramid / mica composite insulating paper and its preparation method. The paper is formed by wet papermaking and hot pressing of a mixed slurry composed of meta-aramid chopped fibers, meta-aramid precipitated fibers, and mica flakes. The composite insulating paper has a thermal decomposition temperature ≥425℃, tensile strength ≥52N / mm, tear strength ≥2.2N / mm, and voltage breakdown strength ≥13.8kV / mm. The mass ratio of chopped fibers to precipitated fibers is (50~80):(50~20). The amount of mica flakes added is 5wt%~10wt% of the total mass of the two aramid fibers. The hot pressing adopts a segmented hot pressing process of "low-temperature pre-pressing - medium-temperature strengthening - high-temperature setting". By controlling the key parameters of the precipitated fibers and optimizing the ratio of chopped fibers to precipitated fibers and the proportion of mica flakes added, the paper is prepared through processes such as raw material pretreatment, graded mixing and dissociation, wet papermaking, and segmented hot pressing. Advantages: Through multi-parameter coordinated control and process optimization, the technical bottlenecks such as the mechanical and insulation properties of existing aramid composite insulating paper and insufficient thermal stability have been solved.

The utility model belongs to refrigerated container stereoscopic stacking machine warehouse shelf technical field discloses a kind of shelf structure for refrigerated container stereoscopic stacking machine warehouse, including at least two groups of parallelly arranged door-shaped frames, horizontal connecting pieces, goods bearing parts, track fixing parts and side wall supporting parts;Door-shaped frame is by vertical stainless steel square tube and top horizontal stainless steel square tube welding composition, horizontal connecting piece is stainless steel angle steel, horizontal connection vertical stainless steel square tube on adjacent door-shaped frame, goods bearing part is shelf crossbeam, two ends are fixed on vertical stainless steel square tube on door-shaped frame, track fixing part includes stacking machine ground rail crossbeam and overhead rail crossbeam, side wall supporting part is lengthened cross bracing, the bottom of door-shaped frame is equipped with footing.The utility model is by using integration shelf and track design, to reduce space occupancy, again with the cooperation of pre-buried positioning pin hole and adjustable footing, track and shelf synchronous calibration can be realized, to reduce maintenance cost.

This invention discloses a fixing structure for a high-power frameless motor used in humanoid robots, relating to the field of frameless motor technology. It includes: a stator assembly with positioning blocks fixed to both end faces of the stator assembly, two positioning blocks on each end face; and a rotor assembly housed within the stator assembly. This invention employs a structure with a double-disc body, double rotating rings, and a connecting seat. Relying on the positioning blocks and positioning grooves, and the protrusions and grooves forming a double alignment design, combined with a locking mechanism, it can quickly achieve concentric positioning of the stator assembly and rotor assembly, while effectively limiting radial movement of the rotor assembly. Furthermore, the connecting mechanism adopts an adjustable clamping structure design, which can adapt to output shafts of different sizes, ensuring coaxiality between the output shaft and the stator and rotor assemblies. This eliminates the need to replace the motor body or customize an adapter flange, significantly improving the equipment's versatility and adaptability to different operating conditions.

The utility model relates to a wall bushing technical field, concretely is a kind of wall bushing with insulating protective pad, including bushing body.This one wall bushing with insulating protective pad, when cable or pipeline needs to pass through wall bushing, it is from second insulating protective pad inner wall and enters.This time, since installation port is connected with ventilation room, with the rise of air pressure in ventilation room, elastic air bag will gradually expand, and tightly wrap the cable passing from all directions.This wrapping mode is different from rigid fixing, it has certain elasticity, can firmly fix cable, prevent cable from loosening, displacement due to external force in bushing, influence electrical transmission, and will not cause damage to cable skin because of excessive extrusion.

The utility model relates to terminal technology field especially relates to a terminal of electrolytic corrosion resistance, terminal of electrolytic corrosion resistance, including terminal, the bottom of terminal is provided with through slot, still including titanium nitride layer and sealing ring etc, the outer surface of terminal is equipped with titanium nitride layer, the inside surface of terminal starts to have a plurality of flow guide groove, the port of terminal both sides all fixedly connected with a sealing ring. Through flow guide groove, utilize gravity or surface tension to guide the dew flow to specific through slot area, thereby avoid the terminal inside to gather too much dew, and if not to its in time processing, can reduce terminal insulation performance, possibly cause the electric leakage or short circuit, especially more dangerous under high pressure environment, contact resistance also can increase, because the corrosion product can hinder the current to pass through, lead to heat, even cause fire and other problems.

This invention relates to the field of electronic ceramic substrates and provides a method for preparing a black alumina substrate, which solves the defects of existing black alumina substrates, such as low thermal conductivity and low mechanical strength, due to defects in the preparation process. The preparation steps include: (1) preparing raw materials; (2) preparing slurry; (3) casting; (4) debinding; (5) sintering; (6) annealing; and (7) surface treatment.