18results about How to "Avoid pitting" patented technology

The application discloses an array substrate and a liquid crystal display panel, and belongs to the technical field of display. The array substrate has a plurality of sub-pixel regions. The array substrate comprises a substrate, and a sub-pixel, a first insulating layer, a common electrode and a first supporting column located on one side of the substrate. The sub-pixel comprises a transistor and a pixel electrode, and the first insulating layer is located between the transistor and the pixel electrode in a direction perpendicular to the substrate. In the same sub-pixel region, the first insulating layer comprises a first via, and the pixel electrode is overlapped with a first electrode of the transistor through the first via. One first supporting column corresponds to two first vias adjacent in a first direction. For the corresponding first supporting column and two first vias, the first supporting column has a part extending into the two first vias, and in the first direction, the maximum width of the first supporting column located in the first via is less than the maximum width of the first via. In this way, the uniform distribution of the guide liquid can be ensured, and the display uniformity is improved.

The utility model relates to a kind of water removal and cooling device of steel plate hot straightener, belong to steel plate hot straightening equipment technical field, for the hot straightening machine of steel plate is blown to remove water and cooling.The technical scheme is: air inlet main pipe and inlet and outlet water main pipe are respectively placed horizontally in the two sides of hot straightening machine, air inlet main pipe and inlet and outlet water main pipe are connected with multiple parallel spray pipes, multiple spray pipes are respectively installed with multiple nozzles and the roll table inside hot straightening machine is opposite, air inlet main pipe is connected with air inlet pipe, air inlet pipe is connected with compressed air pipeline, air inlet pipe is installed air inlet pipe valve, inlet and outlet water main pipe is respectively connected with inlet pipe and drain pipe, inlet pipe is installed inlet pipe valve, the water inlet end of inlet pipe is connected with cooling water pipeline, drain pipe is installed drain pipe valve.The utility model is simple in structure, convenient to use, can be blown to remove water to hot straightening machine, improve the quality of steel plate, hot straightening machine and roll table can be cooled simultaneously, ensure that hot straightening machine is stably operated.

The embodiment of the present application provides a disc seat assembly and a clothes processing device. The disc seat assembly comprises a disc seat, an electromagnetic lock device and a shielding piece, the shielding piece is used for shielding a cable connected with the electromagnetic lock device, the disc seat comprises a seat body, the shielding piece and the electromagnetic lock device are arranged below the seat body of the disc seat, the shielding piece is connected with the disc seat, and the electromagnetic lock device is connected with the shielding piece. The disc seat assembly provided by the embodiment of the present application can avoid the phenomenon that a recess appears on the upper surface of the disc seat due to injection molding of a screw column on the disc seat by installing the electromagnetic lock device on the shielding piece below the disc seat, so that the appearance effect of the disc seat can be improved, and the appearance aesthetic degree of the washing machine is improved.

This invention discloses a water stability testing system and method for granite crushed stone asphalt concrete, relating to the field of water stability testing technology. The granite crushed stone asphalt concrete water stability testing system includes a molding module, a negative pressure immersion module, and a pressure application module. The molding module includes a molding mold; the negative pressure immersion module includes a housing, a negative pressure air pump, and a water storage tank. A first bottom mold can selectively be fitted and connected to a second bottom mold or the water storage tank, respectively used for molding or wetting the test sample. In this invention, demolding of the circumferential surface of the test sample is no longer performed in the early stage; instead, the sealing state between the test sample and the side mold is maintained until the negative pressure immersion process. On the one hand, it eliminates the need to rebuild the sealing structure for the circumferential surface of the test sample, reducing operational steps and improving operational efficiency. On the other hand, the reduced adhesion between the wetted test sample and the side mold reduces the difficulty of subsequent mold opening.

This utility model relates to the field of infrared coating electroplating technology, specifically designing an electroplating device for multi-part coating in a single tank. It includes a power supply, with an anode connected to an anode mechanism and a cathode connected to a cathode mechanism. The anode and cathode mechanisms are connected via an electroplating tank, and a bubbling mechanism is provided at the bottom of the electroplating tank. The anode mechanism of this device includes several spaced anode plates, which can achieve uniform voltage distribution, avoiding the problem of uneven coating thickness during electroplating. The connection between the anode plates and the anode mechanism is convenient and easy to maintain. The bubbling device incorporates a check valve to improve device stability and prevent plating solution backflow. The uniformly designed air pipes can evenly bubble, avoiding pitting problems on the surface of parts caused by side reactions such as hydrogen evolution. Multiple cathode hooks in the cathode mechanism allow the device to safely and reliably perform multi-part electroplating in a single tank.

The invention relates to the technical field of corrosion inhibitors and metal corrosion prevention, and discloses a high-density temperature-resistant corrosion inhibitor for an oil extraction pump and a preparation method thereof.The corrosion inhibitor is composed of sodium benzenesulfonate 180.00-200.00 g / L, sodium molybdate 10.00-15.00 g / L and sodium silicate 0.10-0.20 g / L. deionized water serves as a solvent, the density of the corrosion inhibitor is larger than 1.150 g / mL, and the high-density temperature-resistant corrosion inhibitor has excellent corrosion inhibition performance on 45 # carbon steel and 316 L stainless steel in the high-pressure water environment at the temperature of 120-180 DEG C; and the room-temperature corrosion inhibition efficiency is not lower than 85.00%. The corrosion inhibitor is a compound corrosion inhibitor, a compact corrosion-resistant film is formed through the synergistic effect of components, and the corrosion inhibitor is environmentally friendly, low in cost, easy to prepare and capable of accurately adapting to the extreme working condition of direct electric heating auxiliary exploitation of thick oil, effectively solves the corrosion problem of an oil extraction pump protector cavity, prolongs the service life of equipment and has wide application prospects and huge economic benefits.

The invention relates to the field of boron neutron capture therapy, and discloses a method for improving the corrosion resistance of an accelerator neutron source target cooling system, which comprises the following steps: 1) forming a periodic micron-order corrugated oxide film on the surface of a non-target material layer of a copper substrate of the accelerator neutron source target cooling system by laser marking treatment; (2) an alpha-Ta film of a body-centered cubic structure grows on the surface of the oxidation film through magnetron sputtering; and after passivation, the Ta2O5 is converted into a Ta2O5 passive film. The method comprises the following steps: firstly, forming an oxide film with a special shape of periodic micron-sized corrugation on the surface of a copper substrate by utilizing laser marking treatment; an alpha-Ta film is further grown on the surface of the oxidation film through magnetron sputtering; and the copper substrate is passivated into a Ta2O5 passive film, so that the corrosion resistance of the surface of the copper substrate is greatly improved.

The application discloses an impact-resistant and wear-resistant epoxy resin modified mortar and a preparation method thereof, and relates to the technical field of mortar.The application comprises the following raw materials in mass parts: deionized water 170-190 parts, modified boron nitride synergist 13.13-14.38 parts, water reducing agent 0.8-1.2 parts, tributyl phosphate 0.6-0.8 parts, composite modified porous polysiloxane microspheres 26.25-28.75 parts, water-based epoxy resin 21-23 parts, Portland cement 420-460 parts, sulphoaluminate cement 105-115 parts, concrete expansive agent 15.75-17.25 parts, river sand 1050-1150 parts, water-based epoxy curing agent 27.3-29.9 parts.The introduction of the modified boron nitride synergist and other raw materials in the application simultaneously improves the compressive strength, the bending strength, the impact strength, the wear resistance, the anti-cavitation ability, the aging resistance and the alkali corrosion resistance.

This invention proposes a three-stage linkage deployment and transfer device and method for a rover, belonging to the field of rover transfer technology. It solves the problems of existing rover transfer mechanisms being unable to reliably transfer the rover to the lunar surface under various operating conditions, lacking selective transfer capabilities, and failing to effectively separate the rover from the lander. It includes a release rope, a deployment rope, a first motor, a second motor, and a linkage assembly. The linkage assembly includes a first linkage rod, a second linkage rod, and a third linkage rod. The top end of the first linkage rod is installed at the lower end of the lander, and the tail end of the first linkage rod is connected to the top end of the second linkage rod. The tail end of the second linkage rod is connected to the top end of the third linkage rod. One end of the deployment rope is connected to motor M2, and the other end of the deployment rope is installed at the connection between the first and second linkage rods. One end of the release rope is connected to motor M1. It is mainly used for rover transfer.

This invention discloses a milling machine for granulation machining that facilitates rotational fixation, relating to the field of milling machine technology. It includes a base with a rotary worktable on its top outer wall, and further includes a locking mechanism located on one outer wall of the rotary worktable. The locking mechanism comprises a worm gear, a connecting bracket, a mounting cylinder, a tapered sleeve, an elastic sleeve, a guide cylinder, a guide rod, a locking ring, a return spring, a connecting cylinder, a fixed disc, and a limiting groove. The locking mechanism is used for axial positioning and locking of the worm gear. The mounting cylinder and the connecting bracket are connected by bearings. This invention discloses a milling machine for granulation machining that facilitates rotational fixation, which can center and tighten the worm gear when it becomes loose due to long-term operation, thereby ensuring the positioning accuracy and long-term operational stability of the rotary worktable under all working conditions.

The present application relates to the technical field of flat lock, in particular to a kind of flat lock, wherein a kind of flat lock includes: base, with assembly cavity;Pivot, with base rotatable connection, and inner end enters the assembly cavity;Pin, is located in the inner end of the pivot;Handle, with the assembly cavity is adapted, by the pin with the pivot rotatable connection, first plane and second plane are equipped with connection on the side close to the assembly cavity, there is included angle between the first plane and the second plane, first protrusion is equipped on the first plane;Avoiding step, is equipped in the inner side of the assembly cavity, for avoiding the first protrusion;And avoiding groove, is opened in the pivot, for avoiding the first protrusion;Wherein, in the lock state, the avoiding step is aligned with the avoiding groove, the handle can be with the axis of the pin to realize turning.

This utility model discloses a painting device for a production line of slate-coated flooring, belonging to the technical field of slate-coated flooring production equipment. It includes a painting rack for supporting the slate-coated flooring, a fixed frame welded to the top of the painting rack, and multiple air inlets for air intake on the side of the fixed frame. Each of the multiple air inlets is equipped with a fan. A sliding groove is provided on the vertical inner wall of the fixed frame, and a filter plate frame for support is slidably installed inside the sliding groove. A filter plate for filtering air is installed inside the filter plate frame. A heating pipe for heating air is installed on the vertical inner wall of the fixed frame. This painting device for a production line of slate-coated flooring can improve air filtration capacity, prevent solid particles in the drying gas from directly adhering to the uncured paint film surface, avoid particle protrusions or pits, ensure the surface roughness of the flooring, and improve aesthetics and tactile feel.

The application discloses a magnesium-aluminum alloy workpiece and a surface nano processing method thereof, and relates to the technical field of metal material processing technology.The roughening liquid adopts sulfuric acid to realize surface etching, forms uniform corrosion pits, and is matched with hydroxyethylidene diphosphonic acid corrosion inhibitor to effectively inhibit the pitting corrosion and intergranular corrosion of the magnesium-aluminum alloy and avoid excessive roughening to cause the strength of the base material to decrease.During ash removal, an alkaline medicine liquid is added with a surfactant, isostearyl alcohol polyoxyethylene ether is used as a non-ionic surfactant, residual ash in the corrosion pits is stripped, an activated metal surface is exposed, and the uniformity of subsequent electrolytic treatment is ensured.The application generates a stable and firm composite oxide film on the surface of the magnesium-aluminum alloy workpiece through electrolytic treatment, uniform nano holes are formed on the oxide film, and the bonding performance of the magnesium-aluminum alloy workpiece subjected to nano injection molding is improved.

The application discloses an antibacterial pillow, and belongs to the technical field of pillows. The antibacterial pillow comprises a pillow body, wherein the pillow body is composed of an external structure and an internal structure; the internal structure comprises a filler, a supporting pad, a ventilation hole, a supporting column and a ring line; and the external structure comprises a cloth cover and a zipper, wherein the zipper is arranged at one end of the cloth cover. The supporting pad is made of silica gel, and the silica gel has moderate hardness, so that the neck is not uncomfortable, and a certain supporting force can be provided to avoid the occurrence of a pit in the middle of the pillow after the pillow is used for a period of time, thereby improving the comfort during use of the pillow and improving the use experience. The longitudinal ring line is wound outside the filler, the transverse ring line is wound outside the longitudinal ring line, a grid shape is formed, the filler is wrapped, the filler is prevented from being loose, the filler is not prone to collapse after being used to a certain degree, and the service life of the pillow is improved, and the practicality of the device is greatly improved.

This invention provides a stamping forming apparatus for automotive parts, including an upper die holder and a lower die holder, with a mold cavity provided between the upper and lower die holders. The upper die holder has a fully open position, an initial closed position, a near-closed position, and a fully closed position along its stroke direction near the lower die holder. The apparatus further includes: an oil spraying mechanism, which is mechanically coupled to the upper die holder and can spray lubricating medium into the mold cavity; and an oil suction mechanism, which is mechanically coupled to the upper die holder. The oil suction mechanism releases pressure potential energy when the upper die holder moves from the fully open position to the near-closed position and uses the released pressure potential energy to suck the lubricating medium away from the mold cavity, effectively avoiding the phenomena of "liquid pads" and "oil plugs" and preventing pitting and dents on the surface of the parts.

The utility model belongs to the technical field of stainless steel water tanks, and discloses an anti-corrosion durable stainless steel water tank which comprises a first tank body and a plurality of second tank bodies, the inner diameter and the outer diameter of the first tank body are consistent with those of the second tank bodies, and first butt joint grooves are formed in the edge positions of the top ends of the first tank body and the second tank bodies. According to the scheme, the first butt-joint groove and the second butt-joint groove are arranged to form a three-dimensional staggered clamping structure, and the baffle integrally formed at the bottom of the inner wall of the second box body and the rubber pad covering one end of the baffle are matched; compared with the prior art, welding-free sealing treatment of internal joints of the water tank is achieved, the sealing performance is improved, meanwhile, the connecting stability and the water tightness are improved, the machining procedure is remarkably simplified, the welding stress influence is reduced, higher corrosion resistance and longer service life are achieved, and good structural innovativeness and engineering adaptability are embodied.

The application relates to the technical field of power distribution equipment, in particular to a low-voltage switch cabinet anti-condensation corrosion-resistant coating and a low-voltage switch cabinet, wherein the anti-condensation corrosion-resistant coating is prepared by spraying and curing an anti-condensation corrosion-resistant coating material; the anti-condensation corrosion-resistant coating material comprises the following raw materials in parts by weight: 30-40 parts of bisphenol A type epoxy resin, 4-8 parts of micron-grade silicon dioxide, 2-6 parts of nano-aluminum oxide, 0.5-1.5 parts of fluoropolyether modified silicone oil, 0.4-1.2 parts of silane coupling agent, 2-7 parts of sodium lignosulfonate, 4-8 parts of mesoporous ZIF-8 material or mesoporous ZIF-8 composite material, 9-14 parts of phenolic curing agent and 6-10 parts of solvent; and the coating has the advantages of improving the long-term stability of the corrosion-resistant performance.

The utility model discloses a transmission gear, which relates to the technical field of gears and comprises a fluted disc, base plates are integrally arranged on two sides of the fluted disc, the fluted disc is disc-shaped, a plurality of teeth are arranged on the circumferential wall of the fluted disc, and the teeth are distributed at equal intervals. And the fluted disc is also connected with an extension driving piece. The transmission gear disclosed by the utility model is provided with the extension driving piece and can also be set into transmission gears with different sizes so as to meet different requirements of equipment, and the problems that numerous precise instruments mentioned in the background technology are also produced along with the transmission gear, a gear set and a reduction gearbox move widely, various different types of gears are meshed with each other, and the cost is low in the prior art are solved. And in order to change the number, the model, the position and the like of the gears when the rotating speed is adjusted again, the adjusting process is tedious, the process of replacing the gears is simplified, and the effects of saving manpower and material resources are achieved.