39results about How to "Reduced risk of flaking" patented technology

The invention relates to an intermediate roller contour, in particular to an intermediate roller contour of an intermediate roller movable type convexity high-accuracy control temper mill. The intermediate roller contour of the intermediate roller movable type convexity high-accuracy control temper mill consists of three continuous line segments, wherein a polynomial curve equation of a head roller contour is y=A2x<2>+A4x<4>+A6x<6>+A8x<8> by taking a crossing point of a head part and an intermediate segment as an origin of coordinates, axial direction of the intermediate roller as an X axis and radial direction of the intermediate roller as a Y axis; and in the equation, the origin of coordinates is the crossing point of the head roller contour and the intermediate segment, the axial direction of the intermediate roller is the X axis, the radial direction of the intermediate roller is the Y axis, R' is radius difference between roller bodies of two roller-shaped ends of the head, and L1 is more than 0 and less than or equal to L/3 and the R' is more than 0 and less than R. Through the roller contour, a forced-contact condition is greatly relieved, contact pressure between rollers is uniformly distributed, a peak value of the contact pressure is greatly reduced, the improvement on the service periods of the rollers is facilitated, a set value of rolling force is reduced, the service life of the rollers is prolonged, and the risk of roller spalling is reduced.

The invention relates to the technical field of hot rolling, in particular to a control method for surface oxidation pocking defects of a hot-rolled pickled plate. The control method includes the steps that the chemical components of a steel billet are controlled to include, by mass, 0.05-0.15% of Si, at most 0.01% of P and the balance Mn, Nb, Ti and a Fe substrate. In the heating process of the steel billet, the steel billet with the thickness being 135-250 mm is put into a heating furnace and heated for 160-200 min, and the tapping temperature of the steel billet is controlled to be 1180-1240 DEG C. The thickness of an intermediate billet is controlled to be 26-34 mm after a descaling process. In the precision rolling process, the precision rolling inlet temperature is controlled to be 980-1020 DEG C, and the finish rolling temperature is controlled to be 850-890 DEG C. The control method for surface oxidation pocking defects of the hot-rolled pickled plate can effectively restrain the occurrence of surface oxidation pocking defects of the hot-rolled pickled plate with the thickness being at most 2 mm and the tensile strength being at least 500 MPa.

The invention relates to an aramid-spandex sheath-core composite fiber and a preparation method thereof. The method is characterized in that a sheath layer spinning solution and a core layer spinning solution are simultaneously extruded in a sheath-core structure and subjected to dry spinning through a spinneret plate assembly of which a spinneret orifice is in a concentric circle form. A sheath layer of the aramid-spandex sheath core composite fiber is made of an aramid 1313 and a core layer is made of spandex; the section of the fiber is of a concentric circle solid structure; the sheath layer accounts for 5-20% of total weight of the fiber; the prepared aramid-spandex sheath core composite fiber has high resilience and also has high temperature resistance, chemical resistance and wear resistance; and meanwhile, the problems that the sheath layer aramid 1313 fiber is not easy to dye, the sheath-core composite fiber is difficult to spin and mold and the contact interface of the sheath layer and the core is easy to peel off are solved.

The invention provides a moderate-temperature antioxidation coating which is prepared by sintering a coating intermediate. The coating intermediate comprises a first coating compounded on a matrix surface, a second coating compounded on the first coating, and an ethyl orthosilicate layer compounded on the second coating. The first coating is prepared from a H3BO3-H3PO4 mixed acid solution. The second coating is prepared from B2O3, SiO2, Mn(H2PO4)2, ZrO2, CaF2, Al2O3, B4C, CeO2 and silica sol. The manganese can promote the flowability of the anti-glass phase in the sintering process; and by using the ethyl orthosilicate as a hole sealing agent, the silicon dioxide generated in the sintering process can fill pores in the antioxidation coating and reduce the risk of peeling of the antioxidation coating. The invention also provides a preparation method of the moderate-temperature antioxidation coating and a carbon/carbon composite product.

The invention discloses a foldable display panel and a foldable display device. The foldable display panel comprises a front cover plate, a flexible screen module, a supporting plate and a bending assembly which are stacked in sequence. The supporting plate comprises at least two non-bending areas and a bending area connected with each non-bending area, the bending area comprises a plurality of rows of open holes formed at intervals, and every two adjacent rows of open holes are formed in a staggered mode. The metal plate and the supporting plate are integrated, patterned trepanning is conducted on the bent area of the supporting plate, the segment difference is eliminated, the relative dislocation amount is reduced, the peeling risk is reduced, meanwhile, due to the fact that the bendingresistance, the recovery performance and the material strength are good, the unevenness is reduced, the good supporting and protecting effects are achieved, assembly and matching with the whole machine are facilitated, the production cost is reduced, and the production yield and the product quality are improved.

A semiconductor device and a forming method thereof are provided. The forming method of the semiconductor device comprises the following steps: providing a wafer which is divided into a device region and a wafer edge; forming a first dielectric layer on the wafer; forming a first contact hole corresponding to the device region and a second contact hole corresponding to the wafer edge in the first dielectric layer; forming a conductive layer which covers the first dielectric layer, fills the first contact hole completely and fills the second contact hole, wherein the conductive layer in the second contact hole is provided with a hole communicating the opening with the bottom of the second contact hole; forming a filling layer which covers the conductive layer and fills the hole completely; and removing the conductive layer and the filling layer on the first dielectric layer, wherein the remaining conductive layer in the first contact hole is used as a first plug layer, and the remaining filling layer and the reaming conductive layer in the second contact hole are used as a first pseudo plug layer. The first pseudo plug layer can bear large stress, and multiple dummy plug layers and pseudo metal layers do not peel off. Thus, the first dielectric layer has better insulation isolation performance.

The invention provides a photoresist composition and photoresist. The photoresist composition is prepared from, by mass, 4-10% of a resin matrix, 5-8% of pigment/dye, 0-5% of reactive diluent monomer and 70-80% of solvent, the resin matrix contains acrylic resin and self-initiated resin, and the self-initiated resin is 0-2% by mass. According to the photoresist composition and the photoresist, in a curing system, the mobility is small, and the deep curability is good; the surface layer and the bottom layer of the photoresist composition can both perform sufficient curing reactions, and the risk of peeling off of the cured photoresist composition is reduced.

The application discloses a multi-component side-by-side functional fiber, which includes three bundles of fiber bodies mixed with each other, and the three bundles of fiber bodies are antibacterial fibers, cotton fibers and flax fibers respectively. For the fiber skin layer covering the outer side of the fiber core layer, the inner wall of the fiber skin layer protrudes inwardly with reinforcing ribs embedded in the fiber core layer, and the outer wall of the fiber skin layer is wound with silver fibers. The invention also discloses a preparation method of multi-component side-by-side functional fibers. The present invention integrates the superior characteristics of more than three kinds of raw materials, allowing them to be reflected on the same fiber, so that the prepared fabric not only has the softness, close-fitting and air permeability of cotton and linen, but also has been treated with antibacterial agents, which is more healthy and antibacterial, and obtains a Clothing fabric with various functions.

The invention discloses an OLED display device. The OLED display device comprises a bottom plate and a cover plate which are opposite, and the bottom plate is provided with a first surface and a second surface which are opposite. The OLED display device further comprises a display area, a non-display area, an OLED light-emitting assembly, first electrodes, second electrodes, conductive protrusionsand a flexible printed circuit board, wherein the OLED light-emitting assembly is arranged on the first surface of the bottom plate; the first electrodes are arranged on the first surface of the bottom plate and located in the non-display area; the second electrodes are arranged on the cover plate and located in the non-display area; the conductive protrusions are arranged between the bottom plate and the cover plate and are electrically connected with the first electrodes and the second electrodes respectively; the flexible printed circuit board is provided with a first end and a second endwhich are opposite, the first end is electrically connected with the second electrodes, and the second end extends to the side, wherein the second surface is located, of the bottom plate. According tothe OLED display device, the risk that the flexible printed circuit board is peeled off is reduced, and the fitting stability of the flexible printed circuit board is improved.

A method is disclosed for fabricating photovoltaic cells, the method comprising providing plated metal contacts with a contact pattern comprising a plurality of fingers and at least one first pinning element at the free ends of each of the plurality of fingers; and associated photovoltaic cells.

The invention relates to the technical field of production of hard alloy numerical control coating blades, and particularly discloses a cleaning method used before coating of a hard alloy numerical control blade. The cleaning method comprises the steps that first cleaning liquid, second cleaning liquid, third cleaning liquid, fourth cleaning liquid and fifth cleaning liquid suitable for a WC-Co type hard alloy numerical control blade base body are prepared, and the surface of a coating base body is cleaned through an improved ultrasonic cleaning process; the first cleaning liquid is powerful alkaline metal cleaning liquid; the third cleaning liquid is weak alkaline metal cleaning liquid; the fifth cleaning liquid is cleaning liquid containing an antioxidant; and the second cleaning liquid and the fourth cleaning liquid are pure water. The first cleaning liquid, the second cleaning liquid, the third cleaning liquid, the fourth cleaning liquid and the fifth cleaning liquid and the improved ultrasonic cleaning process are adopted, the cleanliness of the surface of the coating base body can be guaranteed, the production efficiency can be improved, meanwhile, it can be guaranteed that the surface of the hard alloy numerical control blade base body is not oxidized by moisture in multiple working days after cleaning, and therefore the bonding strength of the coating and the hard alloy numerical control blade base body is improved, and the service life of the hard alloy numerical control coating blade is prolonged.

The invention discloses a radial tire bead wire containing a surface coating.The radial tire bead wire is characterized in that the surface of the radial tire bead wire is plated with the coating, the coating comprises an inner layer and an outer layer, the outer layer is a copper-nickel-aluminum-zinc coating with the thickness being 0.04-0.06 micron, and the inner layer is a copper-nickel-zinc coating with the thickness being 0.05-0.08 micron; the content of copper in the copper-nickel-aluminum-zinc coating is 30-38 wt%, the content of nickel in the copper-nickel-aluminum-zinc coating is 21-28 wt%, the content of aluminum in the copper-nickel-aluminum-zinc coating is 5-12 wt%, the balance is zinc, the content of copper in the copper-nickel-zinc coating is 32-48 wt%, the content of nickel in the copper-nickel-zinc coating is 22-26 wt%, and the balance is zinc. The invention further discloses a preparation method of the radial tire bead wire containing the surface coating. According to the radial tire bead wire containing the surface coating, the number of coatings is reduced, the copper-nickel-aluminum-zinc coating is adopted as the outer layer, the bonding force is improved while the coating stripping risk is reduced, and the radial tire bead wire can be suitable for various kinds of rubber.

The invention discloses a claw type vacuum pump rotor surface treatment process, and relates to the technical field of vacuum pump rotor surface treatment. The surface treatment process specifically comprises the steps of conducting pretreatment, wherein a base body is subjected to hardening and tempering treatment, and then abrasive paper is used for conducting rough grinding to fine grinding treatment; conducting ultrasonic impact nanocrystallization treatment, wherein nanocrystallization treatment is conducted on the surface of the base body through the milligram energy ultrasonic treatmenttechnology; preparing a coating through double-cathode plasma sputtering deposition, cleaning a furnace chamber, installing a workpiece, and fixing a target material and the base body;; and vacuumizing the interior of the furnace chamber, cleaning the workpiece, and depositing the coating. The base material treated through the surface treatment process provided by the invention has excellent corrosion resistance and abrasion resistance, good fatigue performance and long service life.

The invention provides an environmental barrier coating for boiler overtemperature prevention and a preparation method thereof, relates to the technical field of powder additive manufacturing, and is designed for solving the problem that an existing heat insulation coating cannot be reliably used for a long time. The environmental barrier coating for boiler overtemperature prevention and control comprises a transition layer arranged on the surface of a boiler tube and a heat insulation layer arranged on the surface of the transition layer, and the transition layer is continuous and uniform in thickness; the heat insulation layer is arranged in a segmented mode in the axial direction of the furnace tube, and wave crest characteristics and wave trough characteristics which basically alternate in the axial direction are formed in each section of heat insulation layer. The furnace tube can break through the strain tolerance of a traditional uniform heat insulation coating, so that the stress of coating stripping caused by axial deformation of the furnace tube is effectively reduced, and the environmental barrier coating can be reliably used for a long time.

The invention relates to the technical field of semiconductors, in particular to a part, a plasma reaction device and a part processing method. The plasma reaction device comprises a reaction cavity, wherein the interior of the reaction cavity is a plasma environment, and the part is exposed in the plasma environment; the part comprises a substrate and a plasma-resistant coating coated on the surface of the substrate, a plurality of grooves with the width W1<=30 nm and the depth H1<=100 nm are formed in the surface of the substrate, and bulges are formed between adjacent grooves; and the plasma-resistant coating covers the side wall surfaces and the bottom surfaces of the grooves and the top surfaces of the bulges. According to the part provided by the invention, the surface of the substrate is coated with the plasma-resistant coating to carry out plasma-resistant protection on the substrate, and the plasma-resistant coating is not prone to cracking, crack propagation and stripping.

The invention provides a wall-climbing robot. The wall-climbing robot comprises a supporting frame. A pair of crawler belts is arranged on the supporting frame, wherein the section of each crawler belt is in a runway shape. A rail is arranged between the pair of crawler belts. Each crawler belt comprises a work area and an idle area, and the rail is arranged on the area on the inner sides of the work areas and the idle areas. Symmetric axes parallel to the advancing direction of the crawler belts serve as first symmetric axes. Symmetric axes, parallel to the advancing direction of the crawlerbelts, of the rail serve as the second symmetric axes. The first symmetric axes are parallel to the second symmetric axes, and the vertical distance between the second symmetric axes and the work areas is larger than the vertical distance between the second symmetric axes and the idle areas. Guide wheels capable of sliding are in clamped connection in the rail. Multiple magnetic adsorption units are arranged between the pair of crawler belts. Elastic connectors are connected between the guide wheels and the magnetic adsorption units. The wall-climbing robot has the advantages that due to the fact that the distance between the work areas and the rail and the distance between the idle areas and the rail are different, the elastic connectors are stretched when the guide wheels move to the corresponding work areas, and therefore robot loads are applied to the work areas.

The invention provides a display panel, a manufacturing method thereof and a display device, and relates to the technical field of display. According to the display panel, the resistance reduction wires are arranged on the substrate in the pixel interval area, the interlayer dielectric layer is arranged on the substrate, the interlayer dielectric layer is provided with the openings exposing the resistance reduction wires, the signal wires are arranged in the openings and connected with the resistance reduction wires, and the width of the openings is larger than or equal to that of the signal wires in the row direction of the display panel. The signal lines are formed in the openings of the interlayer dielectric layer, and the widths of the openings are greater than or equal to those of thesignal lines, that is, the signal lines are only located in the openings and do not exceed the surface of the interlayer dielectric layer, and therefore the segment difference of the display panel located in the pixel interval area is reduced; the thickness of the flat layer at each subsequently formed region is relatively uniform, and the planarization effect is relatively good, so that the riskthat the flat layer is peeled off due to the segment difference of the pixel interval regions is reduced, and the reliability of a product is improved.