33results about How to "Avoid black spots" patented technology

The invention discloses a multi-element gas co-infiltration strengthening system and a process thereof, and belongs to the technical field of workpiece heat treatment. According to the multi-element gas co-infiltration strengthening system and the process thereof, the problems of poor environmental protection, poor infiltration effect and single infiltration layer of traditional heat treatment aresolved. The multi-element gas co-infiltration strengthening system comprises a feeding unit, an air exchange unit, a heating pre-infiltration unit, a multi-element gas co-infiltration strengthening unit, a cooling protection unit and a discharge unit connected in sequence. By means of the multi-element gas co-infiltration strengthening system and a process thereof the, through the cooperation ofeach unit, a traditional acid anticorrosion process is replaced, so that the environmental protection is improved; through the air exchange unit, the air participation is avoided, so that the sufficiency of polyatomic infiltration is improved; through the combination of the heating pre-infiltration unit and microwave radiation, the structure of the surface of a lamp post is changed, so that the infiltration speed and depth of subsequent nitrogen, sulfur and chromium elements are improved; and in the strengthening treatment of multi-element gas co-infiltration, firstly, ammonia atmosphere nitriding treatment is adopted, and then gaseous carbon sulfur chromium complex is released by an accelerating infiltration ball B, so that the carburizing, sulphurizing and chromizing co-infiltration treatment is achieved, the structure of the infiltration layer is complex and diversified, and the hardness of the lamp post is improved.

The present invention discloses a flexible substrate, a display back plate and a flexible display screen. The flexible substrate comprises a flexible material layer and a skeleton layer, the flexiblematerial layer comprises a support surface, and the skeleton layer is arranged at the support surface of the flexible material layer, or is arranged at one side far away from the support surface of the flexible material layer, or is arranged at the internal portion of the flexible material layer, and is connected with the flexible material layer; and the elasticity modulus of the skeleton layer islarger than the elasticity modulus of the flexible material layer. The flexible substrate is high in shock resistance capacity, and can effectively avoid the technical problem that the wires in the flexible substrate are damaged due to large impact force.

In one embodiment, the present invention provides an organic light-emitting display (OLED), which includes: a TFT disposed on a substrate; an insulating layer disposed on the TFT and having a through hole; disposed on the insulating layer and connected through the through hole a pixel electrode to a drain electrode of the TFT; an emission layer disposed on the pixel electrode; and a counter electrode pattern disposed on the emission layer and exposing at least an upper portion of the through hole. This avoids the close structural proximity between the counter electrode and the pixel layer, thereby reducing the possibility of short circuits.

The invention relates to the technical field of ceramic production, and discloses a high-hardness domestic ceramic and a production method thereof. The high-hardness domestic ceramic comprises a green body and a glaze layer, wherein the green body comprises kaolin, aluminum oxide, zirconium oxide, bentonite, waste porcelain slag, quartz and feldspar, and the glaze layer comprises kaolin, magnetic powder, talcum powder, spodumene, lithium chinastone, quartz and calcite. The invention further provides a production method of the high-hardness domestic ceramic. The production method comprises the following steps: S1, preparing materials; and S2, mixing and ball-milling. Through the formula combined, the hardness of a green body can be improved, a refined mud cake is uniform in structure and higher in plasticity, the hardness of a finished product is improved, black spots can be prevented from being generated on a sintered product, inert gas is filled, the stability is improved, and cracks are prevented from being generated on the product.

The invention relates to the technical field of drying medicines, chemicals, foods and pharmaceutical raw materials, and in particular to a convection type clean oven comprising an oven main unit (1) and an oven auxiliary unit (2). The left and right sides of the oven main unit (1) are respectively provided with a main unit air inlet (2-1) and a main unit air returning port (12-1). The interior of the oven auxiliary unit (2) is divided into three independent spaces through partitions, a first space is provided with a high-efficient filter (20) on the perpendicular direction, two sides of the high-efficient filter (20) are respectively provided with na oven auxiliary unit air outlet (2-2) and a circulating fan air outlet, a second space is provided with a medium-efficient filter (18) on the horizontal direction, the lower end of the medium-efficient filter (18) on the side wall of the oven auxiliary unit is provided with an oven auxiliary unit air returning port (12-2), the lower horizontal plane of a third space is provided with a heat exchanger (19), and the side wall of the oven auxiliary unit in the third space is provided with a circulating fan air inlet; the outer walls of the oven auxiliary unit (2) are provided with a wet exhaust fan (5), a circulating fan (6) and a fresh air inlet (8).

The invention discloses a paper impregnating device for producing glue film paper. The paper impregnating device comprises a cleaning mechanism, an impregnating mechanism and a drying mechanism; the cleaning mechanism is composed of a bottom support plate, support plates, a material roller, a balance support rod, a height regulating rod, a first conveying roller, a fixed support seat, a controllable pitch cylinder, a cleaning brush, an impregnating box, a cleaning fan and a dust collection box. Through arrangement of the cleaning fan and the cleaning brush, paper is cleaned through the cleaning brush in work, and dust on the outer side of the paper is sucked by the cleaning fan through a dust suction nozzle; impurities or the dust is prevented from being attached to the outer side paper, and black points of the paper after impregnation are avoided; through arrangement of a glue filtering box and drying box, glue can be filtered for the paper, and the situation that the glue is uneven and wasted is avoided; a first separating plate and a second separating plate are added, and the both sides of the paper are processed through ceramic heating plates simultaneously and uniformly, so that the drying efficiency of the paper is improved; and the production efficiency of the glue film paper is improved.

The invention discloses a self-adaptive tension copper foil surface treatment machine, and relates to the field of copper foil processing. The self-adaptive tension copper foil surface treatment machine is characterized in that clamping shaft seats are rotatably arranged on two inner side walls of a pickling tank in a sealing mode, brackets are fixedly arranged on two outer sides of the pickling tank, arc grooves are formed in the brackets, a push rod is rotatably arranged on a support plate, and a free end of the push rod is fixedly connected with a first top block; a ratchet mechanism fixed to the support is arranged on the side, away from the push rod, of the arc groove; a lifting mechanism is further arranged on each bracket, an elastic piece is fixedly arranged on the lifting mechanism, and a second ejector block is fixedly connected to the elastic piece; a folding fan cover is further arranged on the outer side of the pickling tank, and an alkaline water tank is arranged in the folding fan cover. According to the technical scheme, a submerged roller is arranged to be in a hanging and clamping mode, the process of discharging acid liquor is omitted, the arc grooves are formed to change the position of a tensioning roller to avoid hanging work of the submerged roller, the lifting mechanism is used for controlling the height of the tensioning roller, and the elastic piece is arranged to achieve the effect of automatically and finely adjusting the tension of copper foil.

The invention provides a tofacitinib citrate sustained release tablet. The tofacitinib citrate sustained release tablet is composed of a tablet core, a sustained release layer coating and a color layer coating, wherein drug release pores are formed in the sustained release layer coating. According to the tofacitinib citrate sustained release tablet, the composition of an osmotic pressure forming agent and the dosage ratio of the osmotic pressure forming agent to a sustained release agent are adjusted, and the composition of the sustained release layer coating and the weight increment of the coating are further optimized, so that the defect that the dissolution speed is reduced after long-term storage when sorbitol is singly used as the osmotic pressure forming agent is avoided, the initial release speed of the tofacitinib citrate sustained release tablet is increased, the tofacitinib citrate sustained release tablet can be slowly and continuously released after being kept for 6 hours, the drug release is relatively complete, the blood concentration is kept at a uniform and stable level for a long time, the fluctuation of the blood concentration during the administration interval is reduced, the bioavailability is further improved, the adverse reaction is reduced, and the clinical curative effect and safety are guaranteed.

The invention discloses a manufacturing method of an anti-infrared high-energy heat-insulation goggles lens. The manufacturing method comprises the following steps: firstly, drying PC or PA; uniformly mixing 8-15 kg of PC or PA with 8-13 g of nano-scale metal oxide and 2-7 g of a dispersing agent; forming a strip-shaped material from the mixed material; forming a cylindrical anti-infrared master batch from the strip-shaped material; drying PC or PA plastic grains; matching the prepared anti-infrared master batch and dried PC or PA plastic grains according to the proportion that 0.1-0.5 kg of master batch corresponds to 1 kg of plastic grains, and uniformly stirring; and forming the anti-infrared high-energy heat-insulation goggle lens from the stirred mixed material. According to the invention, the manufacturing method is simple, the cost is lower, the color is more stable and uniform, and the product quality is improved; and detection results show that the light transmittance of a 780-2000 nm infrared region reaches 8.69%, namely, the blocking rate is 91.31%, the visible light perspective rate reaches 78.43%, the haze reaches 0.8%, and the product has the advantages of preventing near infrared rays from irradiating eyes, insulating heat, protecting the skin around the eyes, slowing down aging and reducing the occurrence probability of cataract.

The invention discloses size detection equipment capable of positioning and correcting and for mobile phone electronic part detection, and relates to the technical field of mobile phone electronic part detection. The size detection equipment specifically comprises a transparent glass substrate, positioning and correcting mechanisms and an eyepiece cleaning mechanism, two sides of the lower surfaceof the transparent glass substrate are connected with a conveyor belt, the positioning and correcting mechanisms are placed at two sides of the upper surface of the transparent glass substrate, and the eyepiece cleaning mechanism is placed on the surfaces of the right sides of an upper shooting eyepiece and a lower shooting eyepiece. According to the size detection equipment capable of positioning and correcting and for mobile phone electronic part detection, the upper shooting eyepiece shoots the front surface of a circuit board, and the lower shooting eyepiece shoots the back surface of thecircuit board, and comparison software can be used for comparing with a circuit board standard part in a database while the detection of the profile and size is achieved, so that appearance defect detection on the circuit board in detection is facilitated, and the definition of an image shot by the lower shooting eyepiece can be improved through the arrangement of the transparent glass substrate.

The invention discloses a preparation process of a lithium battery negative electrode plate formula. The preparation process is characterized by including steps: (1) pouring NMP into an emulsifying machine, adding a certain quantity of H2O into the emulsifying machine, and stirring for 5-10min to well mixing NMP with H2O; (2) adding needed SP into the emulsifying machine, and stirring for 5-10min;(3) standing for 8-10min to enable complete mixing and wetting of SP, wherein NMP refers to N-methyl pyrrolidone, H2O refers to water, and SP refers to a conductive agent. The preparation process ofthe lithium battery negative electrode plate formula has advantages that dark spots and pock marks in a coating process can be eliminated, and splattering of SP in a preparation process of the lithiumbattery negative electrode plate formula is avoided.

The invention provides a preparation method of a wide pure titanium foil coiled tape, and belongs to the technical field of titanium material processing. 0A-grade sponge titanium is adopted as a raw material, two times of vacuum consumable electrode furnace smelting are carried out, oxide skin on the surface of a plate blank is removed through a numerical control milling machine, and micro cracks on the surface of the plate blank are polished through grinding equipment, so that the produced plate blank is uniform in tissue size and few in internal defect, and a solid foundation is laid for obtaining high-quality and high-yield plates; next, the plate blank is subjected to hot rolling, annealing shot blasting acid pickling, cold rolling acid pickling, secondary acid pickling annealing, surface rolling oil stain removal on a degreasing line and whole roll annealing in a vacuum bell-type furnace, and after the process treatment is conducted, the prepared titanium foil coiled material is more uniform in structure, the forming width is increased, the mechanical property is tested, the titanium foil coiled material is rolled into the (0.1-0.3) * 1530 * Cmm cold rolling titanium foil material through a 20-roller rolling mill; the mechanical property consistent with that of a finished product generated by a narrow rolling mill is kept, the production efficiency and the yield of the coiled tape are improved, and the production cost is reduced.

The invention discloses a vacuum pump, which can solve the problem that the conventional product is likely to stick dust on surface when entering the vacuum pump and to generate black spots during film plating and the problem that the adhesion force of a plated film is unstable. The vacuum pump comprises a vacuum enclosure, an evaporating electrode, an evaporating current controller, an ion generator and an ion generation controller, wherein the evaporating electrode is arranged in the vacuum enclosure; the evaporating electrode is also connected with the evaporating current controller outside the vacuum enclosure; the ion generator is arranged in the vacuum enclosure; and the ion generator is connected with the ion generation controller outside the vacuum enclosure. The vacuum pump has the advantage that ionic wind is generated by the ion generator under a vacuum condition to blow off dust on the surface of the product, eliminate the black spots and improve rate of finished product and the adhesion force of the plating of the product.