7results about How to "Flat thickness" patented technology

The present application belongs to the technical field of concrete preparation detection, and particularly relates to a concrete aggregate water content detection device, which comprises a base and a rack installed above the base. A controller is installed on the side wall of the rack. The device further comprises a through hole opened in the top of the base, a support seat slidably connected inside the through hole, and a weighing mechanism installed inside the through hole for supporting the support seat. A flat hopper is arranged above the base and located on the side of the feed end direction of the support seat. The rack is provided with an adjusting drive mechanism for driving the vertical movement of the flat hopper. A microwave detection unit is arranged on one side of the flat hopper. The present application can perform online detection of the water content of concrete aggregate, improve the detection accuracy by combining weight detection and thickness control, reduce single detection interference error by cross verification of multiple sensing data, and improve data reliability to support subsequent dynamic batching.

The utility model relates to a splicing structure of a soft PET (Polyethylene Terephthalate) screen. The splicing structure comprises a first screen and a second screen, the first screen is provided with a plurality of first insertion tongues or / and the second screen is provided with a plurality of second insertion tongues, the first insertion tongues and the second insertion tongues are arranged in a matched and spaced mode, and after the first screen and the second screen are matched through the first insertion tongues and the second insertion tongues, adhesive tape is arranged on the front faces or / and the back faces of the first screen and the second screen. And the first screen and the second screen are connected into a whole through the adhesive tape. Compared with the prior art, after the first screen and the second screen are matched through the first inserting tongues and the second inserting tongues, the first screen and the second screen are connected into a whole through the adhesive tape, and therefore only the thickness of the adhesive tape is increased at the splicing position of the first screen and the second screen; the thickness of the position is almost consistent with the thickness of the first screen and the second screen, and the position is flat. Therefore, when the screen scroll is stored and then put down for use, no indentation is left on the screen.

This invention provides a PDP selective optical thin film coating device, belonging to the field of optical coating technology. It includes a base plate, a frame on top of the base plate, an adjustment component for adjusting the tension of the device, and a coating component for coating. Through the adjustment component, a tension detector is fixedly installed on the tension roller. The tension detector can sense the pressure changes of the film on the tension roller in real time. When excessive film tension is detected, the output end of the telescopic cylinder drives the push rod downwards, which pulls the tension roller downwards, thereby reducing the film tension. This allows for timely adjustment based on the actual film tension, effectively avoiding the problem of uneven coating thickness caused by slight vibrations of the film under winding tension.

The utility model discloses a multifunctional waistband, including waistband main part and waistband head, and the waistband main part is the flat band -shaped cloth quality structure of integral weaving, and the waistband main part is equipped with the cavity of equal length with it, and the one end of waistband main part forms the storage mouth of cavity, and the one end of waistband main part with the storage mouth has detachable connection with waistband head, and the storage mouth is closed through waistband head, and the flat strip -like body of being composed of rescue rope is placed in the cavity, and the flat strip -like body can be restored into the initial rescue rope, after the split of waistband main part and waistband head, the flat strip -like body can be taken out from the storage mouth of waistband main part end, and the patent stores and deposits the rescue rope in the waistband main part, increases the functionality of waistband, can also achieve the carrying of rescue rope in the use of waistband, and the whole waistband is more simple and beautiful.

This invention relates to an antioxidant solder material and a welding process for surface-mount LEDs, belonging to the field of LED welding technology. It achieves homogenization of composition through a combination of step-by-step melting and microstructure control. First, a tin-copper-bismuth master alloy is prepared by pre-melting in a pit furnace, pre-dispersing the bismuth element. Then, vacuum induction melting combined with electromagnetic stirring, along with an intermediate alloy feeding method, promotes the uniform dispersion of high-melting-point / active elements such as nickel and rare earth elements. Ni and rare earth elements can play a role in grain refinement and grain boundary purification, effectively suppressing the gravitational segregation and coarsening of the bismuth phase, avoiding the formation of brittle enrichment zones in the solder joints. The resulting solder joints have uniform grains, a moderate thickness of the intermetallic compound layer, and a smooth morphology, significantly improving the shear strength and thermal fatigue resistance of the solder joints and reducing the risk of brittle fracture failure of micro-solder joints.

This invention discloses an impregnation device for prepreg resin and its method of use, relating to the field of resin impregnation technology. The device comprises, in sequence according to the direction of fiber cloth feeding, a front traction roller, an impregnation tank, an extrusion roller, a pre-curing oven, and a rear traction roller. The impregnation tank contains a resin solution and a guide roller is disposed within it. The extrusion roller is positioned above the impregnation tank and behind the guide roller, and its edge is equipped with a fixed scraper along its axial direction for scraping off excess resin from the upper surface of the fiber cloth. This invention fundamentally solves the problems of uneven resin distribution along the thickness direction of the fiber cloth, insufficient resin at the edges and bottom, and the inability to expel closed-cell microbubbles in existing processes, significantly improving the interlayer bonding strength and overall density of the prepreg.

The utility model discloses a two roll sheet calender applied to sheet forming test equipment, including frame composition, bearing seat B composition, calender roll, bearing seat sliding plate composition, bearing seat A composition, the side plate front end of frame composition is provided bearing seat A mounting panel and bearing seat B mounting panel respectively, the top of side plate is provided cylinder, bearing seat B composition is fixed on bearing seat B mounting panel, lower calender roll is installed in bearing mounting hole B of bearing seat B composition and is connected speed reducer motor, bearing seat sliding plate composition is fixed on bearing seat A mounting panel, bearing seat sliding plate composition has the bearing seat sliding block of the displacement of upper, lower, bearing seat sliding block connects bearing seat A composition, upper calender roll is installed in bearing mounting hole A of bearing seat A composition and is connected speed reducer motor, and bearing seat A composition is connected cylinder through ball head connector, sets up screw rod subassembly between bearing seat B composition and bearing seat A composition lower, and calender roll inner chamber connects external circulating cooling water interface.