32results about How to "Improve long-term use stability" patented technology

The invention relates to a preparation method of a solar micro battery on the basis of a directional carbon nano tube in the technical field of solar batteries, comprising: dispersing the carbon nano tube into an organic solvent by ultrasound to form stably dispersed carbon nano tube suspension liquid; making two asymmetry metal electrode couple respectively with high-power function and low-powerfunction at a substrate by adopting lithography; applying alternating bias voltage to the asymmetry metal electrode couple, dripping the carbon nano tube suspension liquid on the two electrodes so asto lead the carbon nano tube to from the directional carbon nano tube between the asymmetry electrodes under the action of dimensional electrophoresis force; and adopting high-current selective burnout method or methane plasma selectivity etching method to remove metallic carbon nano tube in the directional carbon nano tube, thus obtaining the solar micro battery. The micro battery is simple in structure and high in stability for long-term use, and can generate high open circuit voltage and efficiency.

The invention discloses a total knee joint replacement prosthesis, which comprises femoral condyle, tibial support, tibial pad and patella. Position column and glenoid, the glenoid defines the shape of the glenoid surface to match the articular surface of the femoral condyle, the lower end surface of the tibial pad is formed with a first groove and a second groove, and the tibial tray includes a support plate with a fixing member, The upper surface of the support plate has a first pillar and a second pillar locked with the tibial pad, and the patella includes a patella articular surface and a patella fixing post. The total knee replacement prosthesis of the present invention has good initial stability and long-term use stability, improves biocompatibility, is beneficial to bone metabolism, improves tibial support anti-subsidence, anti-rotational resistance and long-term use Stability, further improving the bonding force of the tibial support and the tibial pad, further prolonging the service life of the knee joint.

The invention discloses a self temperature limiting heat tracing strip of a PTC (positive temperature coefficient) high polymer conductive composite material, which comprises a flat strip that comprises a polyethylene PTC conductive complex layer. Two conductive core wires are extrusion coated inside the polyethylene PTC conductive complex layer. A polyethylene insulating layer, a shielding layer and a polyethylene reinforced protective layer closed in periphery are arranged orderly outside the polyethylene PTC conductive complex layer from inside to outside. The invention further discloses a preparation method of the self temperature limiting heat tracing strip, which comprises the steps of preparing the polyethylene PTC conductive complex layer; extrusion coating the two conductive core wires; and arranging the polyethylene insulating layer, the shielding layer and the polyethylene reinforced protective layer closed in periphery orderly outside the polyethylene PTC conductive layer from inside to outside. The self temperature limiting heat tracing strip provided by the invention will not generate bubbles, and is stable in electrothermal performance, safe and reliable. The preparation method provided by the invention has simple process flows and low cost, and is easy to realize.

The invention discloses an anti-drop mechanism and belongs to the technical field of petroleum drilling equipment. The anti-drop mechanism comprises a check block and further comprises a lock-up block. The lock-up block is connected with the check block in a lock-up mode. The lock-up block comprises a lock hook part and a force bearing part. The check block comprises a lock-up part and an anti-drop part. The lock-up part is located in a lifting lug upper notch. The anti-drop part is located in a lifting lug hole. The check block makes pendulum-type movement and swings clockwise to be locked with the lock hook part of the lock-up block, and accordingly the lock hook part is in a pressed state; and the check block swings anticlockwise to be unlocked with the lock-up block, and accordingly the lock hook part is in an uplift state. The check block is connected with the lock-up block in a lock-up mode, so that locking is reliable, and the stability of the check block is greatly guaranteed. Due to the fact that the lock-up block is located in the lifting lug upper notch, the lock-up block is not exposed on the outer side of an elevator, so that wrong touching of the lock-up block can be effectively avoided, safe reliability in the operation process is greatly improved, and the safety accident is avoided.

The invention discloses a disengagement prevention and single suspension ring prevention lifting system, and belongs to the field of oil drilling equipment. The system comprises a disengagement prevention component, the disengagement prevention component comprises a stop block and a lock block, the stop block is in locked connection with the lock block, a sensing component is arranged on the stop block, and a trigger block is arranged on the inner wall of a lower notch; the system further comprises a single suspension prevention component and a disengagement prevention mechanism, the single suspension prevention component comprises a controller, the controller is in wireless electric connection with the sensing component, the disengagement prevention mechanism comprises a locking block and a baffle block, the locking block is in locking connection with the baffle block, the locking block comprises a latch hook portion and a stress portion, the baffle block performs pendulum motion around a rotating shaft, the baffle block swings clockwise and is locked with a latch hook portion of the locking block, the baffle block swing anticlockwise and is unlocked with the locking block, the baffle block comprises a locking portion and a disengagement prevention portion, the locking portion is located inside the upper notch of a suspension lug, and the disengagement prevention portion is located inside a lug hole of the suspension lug. A suspension ring can be firmly blocked into the lug hole, and the using stability of the whole lifting system is ensured; lifting of the single suspension ring can be avoided, and potential safety hazards are eradicated.

The present invention proposes a metal mask, a display panel and a display device. The metal mask includes an opening area and a peripheral area, the peripheral area is arranged around the opening area, and the peripheral area is provided with a first half notch, and the first half notch is arranged around the opening area. The metal reticle proposed by the present invention can effectively improve the sag of the metal reticle and reduce the tension of the metal reticle by introducing the first half-grooves arranged around the opening area in the peripheral area, thereby improving the use of the metal reticle. The thickness uniformity of the inorganic encapsulation layer formed by the reticle at different positions further increases the production yield of the display panel.

The invention discloses a method for preventing drop and hoisting of a single hanging ring. The method comprises the steps that a, a drop preventing mechanism of a system for preventing drop and hoisting of the single hanging ring is opened and made to be in an unlocking state; b, when one of the hanging rings is mounted in the position, on one side of an elevator, of a lug hole of a lifting lug, an induction part of a drop preventing part sends a signal, after receiving the signal, a controller forbids moving of a runner wagon, the runner wagon is in a stop state, and after the hanging ring enters the lug hole, the drop preventing mechanism is in a locking state, and the hanging ring is blocked in the lug hole; and c, and the other hanging ring is mounted in the position, on the other side of the elevator, inside the lug hole of the lifting lug, the induction part of the drop preventing part sends a signal, and after receiving the signal, the controller allows the runner wagon to move. It can be effectively guaranteed that the two hanging rings both enter the lug hole, so that single hanging ring hoisting is avoided. Through the joint effect of the drop preventing mechanism and the drop preventing part, the hanging rings can be blocked firmly in the lug hole, slipping is avoided, the working stability and reliability of the elevator are improved, and the safety accident is eradicated.

The invention relates to a preparation method and application of an ionic liquid conductive elastomer. The conductive elastomer first realizes uniform mixing of ionic liquid and butyl acrylate through vinyl silica, and then initiates free radical polymerization by light to obtain . The nano-sized vinyl silica realizes the homogeneous mixing of the polar ionic liquid and the non-polar elastomer butyl acrylate monomer, and the prepared conductive elastomer has excellent conductivity. In addition, the introduction of vinyl silica also builds a cross-linked polymer network, which effectively improves the mechanical properties of the conductive elastomer and enhances the long-term stability of the material.

The invention relates to the machining for a stainless steel coil of a heat exchanging pipe. A production process for a continuous stainless steel coil comprises a pipe making step, a pipe bending step and a cutting step which adopt continuous on-line machining, wherein the first pipe making step comprises the following step: using a steel band as a raw material to perform on-line continuous pipemaking; the second pipe bending step comprises the following steps: conveying an obtained steel pipe into a pipe bending machine; conveying a bent pipe to a second pipe bending position to bend the bent pipe for a second time; continuously bending the pipe in turn until the steel pipe is bent and assumes a single continuous bent pipe; and the third cutting step comprises the following step: sizing the single continuous bent pipe and cutting pipe end excess materials to obtain a single coil single pipe with a length of between 15 and 133 meters without a radial weld joint. The production process has the advantages of low cost, continuous pipe making and pipe bending and convenient machining, assembling and transportation. The obtained stainless steel coil has few or no radial welding spot,strong corrosion resistance without stress corrosion or corrosive pitting phenomenon, stable mechanical strength and relatively better heat exchanging efficiency.

The present invention relates to the field of manufacturing methods of fiber liners, in particular to a method for preparing polycrystalline alumina fiber needle-punched liners, which uses PCW long fibers to weave and then dry-forms to obtain needle-punched liners, comprising the following steps (1) Preliminary opening of fibers; (2) Collecting cotton; (3) Carding and laying; (4) Needle punching; (5) High temperature drying; (6) Cutting into the set size to obtain polycrystalline oxidation Aluminum fiber needle-punched liner. In the present invention, PCW long fibers are selected for braiding dry forming without glue. To ensure that the high-temperature filling density and support force remain constant, weaving overlapping long fibers also effectively avoids the possibility of the gasket itself being eroded by the engine exhaust flow. The preparation method of the polycrystalline alumina fiber needle-punched liner provided by the invention fills up the current domestic blank and solves the problem of high cost of imported products.

The invention relates to a vehicle-mounted camera module connector including a positioning structure, comprising: a housing (1), including a first cavity (101) and a second cavity (102), used for connecting the vehicle-mounted camera module with a vehicle connection circuit board (2), fixedly supported in the first cavity (101); board end connector (A), through the first cavity (101) and the second cavity (102) , and fixedly connected with the circuit board (2); the positioning structure (6); the positioning structure (6) includes a base (601), a correction table (602) and a correction ring (603); the correction table (602 ) is supported on the base (601) and connected with the second cavity (102) for correcting the concentricity of the shell (1); the correction ring (603) is supported on the correction platform (602) and connected with the plate end The connector (A) is connected at the end far away from the circuit board (2), and is used for correcting the concentricity of the connector (A) at the board end. The invention can make the assembled connector have good concentricity.