38results about How to "Does not significantly increase production costs" patented technology

A wind turbine rotor blade (1) with a suction side (13) and a pressure side (15) is provided. It comprises a cylindrical root portion (3) an airfoil portion (5) defining the suction side (13) and the pressure side (15), and a transition portion (7) which is located between the airfoil portion (5) and the root portion (3). The transition portion (7) has a transition profile changing from the airfoil of the airfoil portion (5) to the cylindrical profile of the root portion (3). The leading section of the transition profile is cylindrical and the trailing section of the transition profile is elongated. In the rotor blade, the maximum chord length of the airfoil portion (5) is at least the maximum chord length of the transition portion (7). In addition, the transition profile comprises a section with a concave curvature (25) on the pressure side (15) of the rotor blade (1).

The invention discloses a solid super acid and application thereof in preparing 4,4'-diaminodiphenylmethane. The solid super acid is prepared from waste pulverized fuel ash of a coal fired power plant. A preparation method of the solid super acid comprises the steps of: treating the pulverized fuel ash, treating screenings, dipping the screenings into in a 10mol / l sulfuric acid solution for 1-10 hours, carrying out suction filter, and sintering filter residues at 450-650 DEG C for 4 hours to obtain the solid super acid. The invention not only provides a new approach to the utilization of the waste pulverized fuel ash, but also solves the problem of environmental pollution caused by the pulverized fuel ash, and has important social and economic significance. Since the solid super acid provided by the invention has an extremely low cost and a simple preparation method, the prepared solid super acid has low price and good marketization prospect.

The invention discloses a flip type snap-linked automatic flushing toilet, comprising a toilet body, a toilet cover and a water tank. There is a starting mechanism, the starting mechanism includes a starting lever and a starting shaft, the bottom of the front side of the water tank is provided with a starting groove for installing the starting shaft, and the starting rod is fixed on the hinged end of the toilet cover and passes through the transmission structure. It is connected with the starting shaft, the two ends of the starting shaft extend into the water tank, and the buckle linkage mechanism includes rotating arms symmetrically installed at both ends of the starting shaft, horizontally arranged on the upper end of the lifting link A flat plate, a pick plate and a guide piece are provided, the pick board is slidably connected with the guide piece, and the pick board is fixed with a linkage plate whose lower end is hinged at the end of the rotating arm. The invention realizes that the toilet lid is closed and the flush valve is activated to flush the water, which is convenient for design and modification in the prior art.

The invention provides a metal wire manufacturing method of a flexible substrate. The method comprises a step of preparing a polyimide solution containing bubbles, a step of coating a substrate with the polyimide solution containing bubbles, a step of carrying out baking-curing and forming a polyimide layer with concave holes on the substrate, a step of depositing a metal layer on the polyimide layer, and a step of patterning the metal layer and forming wavy metal wires on the polyimide layer. According to the method, through simple steps, the wavy metal wires are formed on the substrate, the formed metal wires can release the stress of the formed metal wires in the bending of the flexible substrate, and the bending resistance and reliability of the flexible substrate are improved.

The invention belongs to the technical field of robots and aims to provide a robot and a foot structure thereof. The foot structure of the robot comprises a foot main body and an adapter bracket usedfor driving the foot main body to move, wherein the foot main body comprises an instep shell the middle part of which is connected with the adapter bracket, a bottom plate the the bearing wall of which is connected to the instep shell and covers the cavity of the instep shell, and a pad plate the buffer wall of which is connected to a connecting wall of the bottom plate and has a buffer function.According to the invention, on the premise that the production cost is not greatly increased and the foot structure is not complicated, the buffer wall of the pad plate is arranged to be a middle concave structure, so that the middle part of the buffer wall of the pad plate is not contacted with the connecting wall of the bottom plate, so that the pad plate is correspondingly deformed in the walking process of the foot main body to further enhance the absorption or buffering of the reaction impact force to the ground. According to the robot and the foot structure thereof, the absorption capacity of impact force is enhanced, and the walking posture is more stable and natural.

The invention provides a crosslinked modified soybean protein adhesive and a preparing method thereof. The preparing method includes: adding defatted soybean powder, water, sodium dodecyl benzene sulfonate and an alkali into a reactor, stirring for 5 min, adding glycol and silicone oil, raising the temperature to 90 DEG C, maintaining the temperature and stirring for 3 h, cooling and discharging. Before the adhesive is used, two or more of epoxy resin, melamine-formaldehyde resin, urea-formaldehyde resin and phenolic resin are added into the adhesive, adopted as crosslinking agents and uniformly mixed. The soybean protein adhesive is simple in preparation process, moderate in viscosity and strong in operationality. The adhesive is excellent in water resistance. After a poplar adhered board test piece is boiled in boiling water for 2 h and dipped in water having a temperature of 63+-3 DEG C for 1 h, the bonding strength of the test piece is not less than 0.7 MPa and is free of tackless phenomena.

The invention relates to drill collar steel and a preparation method thereof. The drill collar steel comprises the following components based on the total weight of drill collar steel: 0.41-0.47wt% of C, 0.15-0.3wt% of Si, 0.95-1.2wt% of Mn, 0.95-1.2wt% of Cr, 0.15-0.3wt% of Mo, 0.02-0.04wt% of Al, 0.01-0.03wt% of Ti, less than or equal to 0.02wt% of P, less than or equal to 0.015wt% of S, less than or equal to 0.2wt% of Ni, less than or equal to 0.2wt% of Cu, less than or equal to 0.05wt% of Sn, less than or equal to 0.0002 wt% of H, less than or equal to 0.007wt% of N and the balance of Fe;and T[O] is less than or equal to 0.0020wt%, and the A,B,C and D impurities are less than or equal to 1.5 levels. By using the preparation method, the problem that the strength of the drill collar steel is not matched with plastic toughness is solved.

Provided is a liquid crystal display comprising at least a repairing wire (40), a shorting bar area (50), a data line bonding pad (60), a plurality of test lines (100) connected with shorting bars in the shorting bar area (50) and the data line bonding pad (60) during testing, a wiring area (70), a display area (80), a plurality of data lines (82) passing through the wiring area (70) and the display area (80). First ends of the data lines (82) are electrically connected with the data line bonding pad (60) and second ends of the data lines (82) extend below the display area (80). The repairing wire (40) comprises a first portion (41), a second portion (42) and a third portion (43). The first portion (41) is insulatingly crossed with the test lines (100), the second portion (42) is insulatingly crossed with the second ends of the data lines (82), and the third portion (43) is connected with the first portion (41) and the second portion (42) during repairing. Broken line repairing of the data lines (82) in the display area (80) and the wiring area (70) of a liquid crystal panel for the liquid crystal display can be achieved without greatly increasing the production cost of the liquid crystal display.

The invention provides a method to remove residual polymer during etching process. Firstly, a wafer is processed with dry etching in a main etching chamber; then the anticorrosion protective film of the wafer is removed in a decoating chamber; finally, the wafer is again disposed into the main etching chamber for dry etching for the second time; in this way, the residual polymer in the etching process can be gotten rid of. Compared with prior art, the method described by the invention is easy to realize and can thoroughly remove the residual polymer and eliminate coronary defects without increasing production cost by a large margin.

The invention discloses a lever-type reversible automatic flushing toilet, which comprises a toilet body, a toilet cover and a water tank. The flushing valve in the water tank is opened by lifting a connecting rod. The joint of the toilet body is provided with a starting mechanism and a linkage switching mechanism. The lever mechanism is arranged on the front wall of the water tank to connect the lifting link and the gear starting mechanism. The starting mechanism includes a starting mechanism. Arm rotating shaft, gear mechanism and starting arm, the rotating shaft of the toilet lid is transmitted with the rotating shaft of the starting arm through the gear mechanism, the rotating shaft of the starting arm is installed on the body of the toilet, and the linkage switching mechanism controls the starting arm The transmission relationship between the arm and the rotating shaft of the starting arm, the end of the starting arm is connected with the lever mechanism through a tension spring. The invention realizes closing the toilet lid and simultaneously starting the flushing valve for flushing, which is convenient for design and modification in the prior art.