89results about How to "Uniform stability" patented technology

The invention relates to a liquid crystal panel copper-molybdenum membrane etching liquid. According to the total weight, the copper-molybdenum membrane etching liquid comprises the following components in percentage by weight: 1-20 percent of hydrogen peroxide, 0.01-8 percent of a hydrogen peroxide stabilizer, a pH regulator prepared by mixing 1-8 percent of ammonia water and 1-7 percent of organic phosphinate, 0.1-12 percent of a chelating agent, 0.1-5 percent of a metal corrosion inhibitor and the balance of water. According to the copper-molybdenum membrane etching liquid, the problem of stability decomposition of hydrogen peroxide caused by factors such as PH value, heat and metal ions in the working process of the etching liquid is solved, and the hydrogen peroxide can have favorable stability under the conditions of temperature increase, metal ion content increase and the like, so that the realization of uniform etching is facilitated; during etching, the reaction rate of molybdenum metal is reduced, molybdenum and copper are etched at the same rate, and finally CD LOSS and a slope angle, which meet the process requirements of a customer, can be presented; and the copper-molybdenum membrane etching liquid contains no fluoride ions and is environment-friendly.

The invention provides a method for controlling weed growth and improving turf mature quality. The method comprises the following steps: soaking plant seeds in an H2O2 solution with a concentration of 0.5 to 1.5 for 5 to 8 h and then washing the plant seeds with clear water; subjecting the plant seeds to natural air drying and uniformly mixing 70 to 90 parts of the dried plant seeds with 10 to 30 parts of yeast autolysate; and in 1 to 3 days after sowing, sprinkling a weed inhibition liquid which comprises, by weight, 5 to 15% of oxyfluorfen, 15 to 30% of pendimethalin, 8 to 20% of sulfosulfuron, 3 to 5% of esterified polyoxyethylene glycerin, 0.5 to 1% of (NH4)2SO4, 0.8 to 1.2% of KNO3 and 40 to 60% of water. With the method, weed growth can be effectively controlled, growth competition capability of grass is strengthened, turf growth is more vigorous, so later maintenance cost of turf is effectively reduced.

The invention relates to an external wallboard block of an industrial building and a mounting method thereof, which belong to the field of building materials. The external wallboard block of the industrial building comprises a wallboard frame block in which a heat preservation material is embedded, wherein the massive heat preservation material, moisture permeable and waterproof paper, an air layer and an external wall decorative hanging plate are orderly fixed on the part, facing the exterior of a room, of the wallboard frame block; rough grounds and interior wall decorative sheets are orderly fixed on the part, facing the interior of the room, of the wallboard frame block; at least two hoisting holes are formed on the upper end face of a frame at the top of the wallboard frame block; a plurality of first hole positions are arranged on the lower end face of the frame at the bottom of the wallboard frame block; and the lateral surface of the frame at the top of the wallboard frame block facing the interior of the room is provided with a plurality of second hole positions. In the method of the invention, the external wallboard blocks can be arranged on a beam frame of the building to form an external wall, so the number of building material parts can be reduced and working days for field construction also can be reduced, which can realize good construction with shortened construction duration and the like. In addition, the external wallboard block can be subjected to standardized production in a factory beforehand, so the quality of the external wallboard block can be ensured, simultaneously cost is reduced and the external wall with stable quality and stable properties can be manufactured with relatively fixed cost.

The invention discloses a multi-section type variable cross-section dynamic compaction method, which is the method for treatment of a building foundation, clearing and leveling are firstly performed on a soft foundation space, and multi-section type variable cross-section dynamic compaction construction is further performed on dynamic compaction tamping points which are arranged according to the construction process flow and the technical specifications. During the process of forming a tamping pit and forming tamping bodies, more than two rams in cross sections which are increased gradually are adopted for ramming a soil body of a soft foundation from bottom to top respectively for forming the tamping pit or an expanded hole, dry soil or aggregate is further backfilled into the tamping pit and rammed, tamping of the tamping pit and the backfilled materials is completed section by section, then more than two sections of the dynamic compaction tamping bodies or replacement pier bodies in the cross sections which are gradually increased are formed from the bottom to the top and full compaction operation in a dynamic compaction region is finally performed. After the method is adopted for dynamic compaction and reinforcement, the overall compactness, the strength of the foundation and the bearing capacity are greatly improved, and the foundation is uniform at the upper part and the lower part. The stress stability, the uniformity and the overall rigidity of the foundation soil are significantly increased. The construction quality is more stable, the compression modulus of the foundation is high, and the settlement value and the settlement difference value are obviously reduced.

The invention provides a high-strain steel plate for high-homogeneity L485 marine line pipe and its manufacturing method. The composition of the steel plate is as follows by weight percentage: C 0.02%-0.08%, Si 0.10%-0.40%, Mn 1.40%-1.80% , Nb 0.02%~0.08%, V 0.01%~0.05%, Ti 0.01%~0.04%, Al 0.025%~0.045%, P≤0.010%, S≤0.005%, Cu 0.10%~0.50%, Mo 0.02~0.40 %, Cr 0.06% to 0.45%, Ni 0.10% to 0.50%, and the rest are Fe and unavoidable impurity elements. The manufacturing method includes molten steel smelting → out-of-furnace refining → casting → slab reheating → controlled rolling → controlled cooling → heat treatment → air cooling to room temperature; the application of the invention realizes the L485 high-homogeneity steel plate for marine pipes with excellent low-temperature toughness and high strain performance cost-effective production.

The invention provides a loudspeaker cone and a preparation method and application thereof. The loudspeaker cone is prepared from the following raw materials: paper pulp, cationic styrene-acrylic emulsion and emulsified paraffin, the cationic styrene-acrylic emulsion and the emulsified paraffin cooperate with each other, so that the loudspeaker cone is endowed with excellent waterproof and moisture-proof performance, the waterproof performance can reach IPX7 level, the water absorption rate is lower than 4.72%, and the loudspeaker cone can fully meet the application of a loudspeaker underwaterand in a humid outdoor environment. The loudspeaker paper cone provided by the invention can be prepared by mixing and dispersing paper pulp, cationic styrene-acrylic emulsion and emulsified paraffin, and then fishing out the pulp, performing hot press molding and punching, or can be prepared by mixing and dispersing the paper pulp and the cationic styrene-acrylic emulsion, fishing out the pulp,performing hot press molding and punching, further coating the emulsified paraffin on the surface and drying. The preparation process is simple and controllable, the loudspeaker cone with uniform quality and stability can be obtained, and the preparation method has a wide application prospect.

There is provided a control apparatus for a gas sensor, which has a sensor element equipped with first and second oxygen pumping cells. The sensor control apparatus is configured to drive the first oxygen pumping cell to adjust the oxygen concentration of gas under measurement, drive the second oxygen pumping cell to produce a flow of electric current according to the amount of oxygen pumped out of the oxygen concentration adjusted gas by the second oxygen pumping cell, perform specific drive control to control the amount of oxygen pumped by the second oxygen pumping cell to a predetermined level after startup of the sensor element and before the application of the drive voltage between the electrodes of the second oxygen pumping cell.

The invention relates to an air flotation transition device and a liquid crystal display conveying device. The air flotation transition device comprises an upper air flotation plate, a partition and alower air flotation plate. The upper surface of the lower air flotation plate is provided with a groove, the partition is arranged on the upper surface of the lower air flotation plate in a coveringmanner, and the upper air flotation plate is connected to the partition. The lower air flotation plate is provided with an air inlet led to the groove, the partition is provided with air holes communicating with the groove. The upper air flotation plate is provided with oblique air outlet holes, the air outlet holes correspondingly communicate with the air holes, and the hole diameters of the airholes are smaller than those of the air outlet holes. The liquid crystal display conveying device comprises at least two belt conveying mechanisms and the air flotation transition device arranged between the two belt conveying mechanisms. The air flotation transition device is provided with the partition, the hole diameter of the air holes in the partition are smaller than those of the air outletholes in the upper air flotation plate, the stability and the pressure of gas jetted by the upper air flotation plate are more balanced, and the stable conveying of a liquid crystal display is guaranteed.

The invention discloses a combined machining workbench, and belongs to the field of machining workbenches. The combined machining workbench comprises a supporting rod, a motor, a connecting rod, a pressing mechanism and a clamping mechanism. A first sliding groove is formed in the supporting rod, a first sliding rod is connected into the first sliding groove in a sliding manner, a table top is fixedly connected to the first sliding rod, and the pressing mechanism and the clamping mechanism are both fixedly connected to the table top; and a threaded rod is fixedly connected to the output end ofthe motor, a gear and a second rotating sleeve are fixedly connected to the connecting rod, the gear is connected with the threaded rod in an engaged manner, and a rocker is fixedly connected to thesecond rotating sleeve. The combined machining workbench is easy to use and convenient to lift, the lifting function of the workbench is added, the labor intensity of a user is reduced, and the use efficiency is improved; and meanwhile, idler wheels are driven to move up and down through lifting, so that the balance of the stability and the moving portability of the workbench is achieved.

The invention discloses a communication protocol adaptive channel equalizer and an equalization method thereof, the communication protocol adaptive channel equalizer comprises a CTLE compensation circuit, a comparator cache data unit, a CDR phase tracking module, a CDR locking state judgment module, a CTLE adaptive algorithm module and a CTLE curve selection module, the CDR locking state judgment module is used for judging the locking state of the CDR phase tracking module, and the CTLE adaptive algorithm module is used for selecting the CTLE curve. Outputting a CDR locking state signal; and the CTLE adaptive algorithm module and the CTLE curve selection module are respectively used for adjusting the CTLE compensation circuit when the CDR phase tracking module is in a locked state and an unlocked state. The method is low in implementation cost, high in precision, small in error and high in reliability.