40results about How to "Good lap" patented technology

The invention relates to a preparation method of a diaphragm for a high-strength lithium-ion battery, belonging to the technical field of lithium-ion batteries. It includes the following steps: take polypropylene, silicon carbide powder, titanium oxide powder, chlorinated polyethylene, stearic acid, polysulfide rubber, tolylbisureidosilane, and plasticizer, mix them evenly, and put them into a twin-screw extruder The side feeding hopper is used for melting, kneading, extruding, cooling, drying, pelletizing, and film-making to obtain the base material; zirconia powder, pentaerythritol stearate, surfactant, antioxidant, stabilizer, Organic solvent, stir evenly to obtain a mixed solution; heat the substrate, and then apply the mixed solution on the substrate film; heat up, let cool, and that’s it. In the present invention, by doping the silicon carbide powder into the base material, a higher binding force can be formed between the surface coating and the strength of the diaphragm is improved.

The invention relates to a highly numerical control knitting machine with winding package and flying fluff adsorbing performance. The machine comprises a body and a winding column. The central portionof the body is provided with grooves, the inner ends of the grooves are connected to connecting rods, the top ends of the connecting rods are connected to fixed seats, and the top ends of the connecting rods are threadingly connected to the bottom ends of the fixed seats. Threaded rods are fixed to the front ends of the fixed seats, rotating shafts are connected to the top ends of the fixed seats, the front walls of the fixed seats are welded to the bottom ends of the threaded rods, left and right ends in the body are internally provided with threaded holes, and inner ends of the threaded holes are equipped with fixed screws. The highly numerical control knitting machine has the advantages that the rotating shafts are set, idle connecting rods can be conveniently stored through the grooves, through the threaded connection between threaded grooves in the top ends of the connecting rods and the threaded rods, the two pieces can be conveniently combined to be used together, and the two pieces can be conveniently separated and cleaned.

The invention relates to a transition connection device for an aluminum alloy pedestrian bridge. The transition connection device comprises an inner vertical surface and an outer vertical surface, wherein the inner vertical surface is communicated with the outer vertical surface through a support frame; both the inner vertical surface and the outer vertical surface comprise upper chords, lower chords, vertical rods and oblique rods; the vertical rods and the oblique rods are used for connecting the upper chords and the lower chords together; the two ends of the lower chords are connected with connecting ends; a fixed support is arranged at the bottom of the connecting end on one side of each lower chord; a movable support is arranged at the bottom of the connecting end on the other side of each lower chord; joint points are set at the bottoms of the fixed support; and movable sliding chutes are formed at the bottoms of the movable supports. According to the transition connection device, the overall stress points of a bridge can be dispersed, concentrated stress points are reduced, meanwhile the bearing capacity and bearing area of a mouth-shaped aluminum alloy pedestrian bridge are increased, the stability of the mouth-shaped aluminum alloy pedestrian bridge is ensured, and the pedestrian bridge has the advantages of reasonable structure, high stability, high reliability, high durability and regular and practical overall effect.

The invention relates to a homogeneous earth dam and dam penetrating culvert pipe contact scouring anti-seepage grouting construction method and a grouting effect detection method, and belongs to thetechnical field of the hydro-junction. The detection method comprises the steps that after one week after grouting is finished, a high-density electrical method and other geophysical prospecting methods are used for detecting the continuity situation of a cement wall; then, part of soil mass within the grouting range is excavated for observing of the slurry veins and the lap joint situation between the adjacent slurry veins; and finally, part of the slurry veins are selected, the thickness of the slurry veins is measured, and the seepage resistance of the slurry veins is evaluated. According to the homogeneous earth dam and dam penetrating culvert pipe contact scouring anti-seepage grouting construction method and the grouting effect detection method, a seamless steel pipe is utilized as agrouting floral tube, and a good grouting effect is achieved; and the slurry vein thickness is uniform, the lap joint effect is good, and the slurry vein walking direction is controllable. Meanwhile,the invention provides a method for detecting and assessing the field grouting effect through a field excavation and high-density electrical method combining manner, systematic and quantitative analysis and assessment on the grouting effect can be achieved, and a reliable reference basis is provided for improving the construction technology according to the information fed back according to the grouting effect.