47results about How to "Avoid bending cracking" patented technology

The invention provides a preparing method of flexible OLED display screen thin film. By adopting an acrylic acid type resin monomer as an organic film raw material, acrylic acid and a derivative monomer are evaporated on a plastic substrate, and are polymerized into film through a curing method, the surface condition of the plastic substrate is improved to make the surface smooth, and through a radio frequency magnetron sputtering method, then an inorganic medium dense film layer is prepared on an organic film to be adopted as a barrier to obstruct water and oxygen. According to the preparing method of the flexible OLED display screen thin film, the technical defects are overcome that in a technology that an existing flexible display device is encapsulated, the protective layer is prone to fractures when adopted to fold the flexible display device, thus the ability to obstruct water and oxygen is lowered by a large margin, and the display effect is influenced. The prepared thin film can effectively obstruct water and oxygen from invading into the display screen, the material is prevented from aging, and the service life of an OLED device is prolonged.

The invention relates to a method for producing a hot rolled steel coil. The method comprises the following steps of: 1) designing components, pretreating molten iron, smelting in a converter, switching between nitrogen and argon, and performing tapping to obtain molten steel; 2) performing continuous casting on the molten steel to obtain a plate blank, controlling tundish molten steel amount to be between 8t and 15t and liquid level to be between 200mm and 350mm when a continuous casting tundish stops pouring, and pouring under protection in the entire process, wherein the length of an inserted part of a long nozzle is between 300mm and 400mm; 3) heating the plate blank; and 4) finally rolling the heated plate blank and winding to obtain the hot rolled steel coil. In the method, a thermo mechanical control process (TMCP) and a relaxation-precipitation-control (RPC) rolling process are adopted, and C content and Mn content are greatly reduced by micro niobium treatment, so that production cost is reduced; the Q345q-E hot rolled steel coil produced by the method has high plasticity and toughness, and the elongation rate of the hot rolled steel coil is improved by more than 8 percent; meanwhile, the welding properties of materials are improved, and high surface quality of a continuous casting blank is guaranteed.

The invention relates to a method for producing hot rolled steel coils. The method comprises the following steps: 1) designing the components, pretreating molten iron, then carrying out converter smelting, carrying out nitrogen / argon changing over and carrying out tapping to obtain molten steel; 2) continuously casting the molten steel to obtain slabs, controlling the weight of the molten steel in the tundish to be 8-15t when casting of the continuous casting tundish is stopped, ensuring the liquid level to be 200-350mm; carrying out protective casting in the whole course and ensuring the insertion depth of the long nozzle to be 300-400mm; 3) heating the slabs; and 4) finally rolling and curling the heated slabs, thus obtaining the hot rolled steel coils. The method has the following beneficial effects: the TMCP (thermo-mechanical control process)+RPC (relaxation-precipitation-controlling phase transformation) rolling processes are adopted and the contents of C and Mn are substantially reduced by utilizing micro-niobium treatment, thus reducing the production cost; and the Q345R hot rolled steel coils obtained by the method have excellent plasticity and toughness, the elongation of the hot rolled steel coils is improved by more than 8%, and at the same time, the welding property of the materials is improved and good surface quality of the continuous casting slabs is ensured.

The invention discloses a clamping carrying table for processing of thin wafers. The clamping carrying table for processing of thin wafers comprises a trough, wherein the inside of the trough is provided with magnetorheological fluid; an excitation device which is used for driving the magnetorheological fluid to be solidified or to reset to be in a fluid state is arranged on the bottom of the trough; a paper conveying mechanism is arranged on the trough, and periodically supplies single pieces of paper into the trough; the paper floats on the surface of the magnetorheological fluid; and a paper drawing mechanism is arranged on the other side, which is away from the paper conveying mechanism, of the trough. When a wafer to be processed is placed on paper, the paper drawing mechanism draws the paper so that the paper is drawn away from space between the wafer and the surface of the magnetorheological fluid. By the provided clamping carrying table for processing of thin wafers, a functional wafer can be fixed without a carrying wafer, the strength of the functional wafer is high, the breakage rate is low in a processing course, and the yield of final products is high.

The invention discloses a production process of an aluminum-plastic plate. The process comprises mixing and stirring, extrusion molding, degreasing treatment, formation treatment, coating treatment, compounding treatment and trimming treatment. A non-halogen flame retardant and a defoaming agent are added in the preparation process of a plastic core plate; the heat and burning resistant properties of an aluminum-plastic plate part can be greatly increased by the non-halogen flame retardant; the surface smooth finish of the prepared plastic core plate can be higher by adding the defoaming agent; the plastic core plate is prevented from generating bubbles in the preparation process; the quality of the produced aluminum-plastic plate part is effectively improved; blank extruded through an extruder barrel flows into a wedge-shaped material guiding cavity, and falls into a preforming compressing device through a strip-shaped outlet of the wedge-shaped material guiding cavity; the preformed compressing device extrudes the inner blank into a plate-like structure by a water-cooling pressing roller I and a water-cooling pressing roller II; then the preliminarily molded plastic core plate is introduced into a subsequent water-cooling pressing roller to perform the extrusion shaping to obtain the plastic core plate; the phenomena of bending cracking and the like which easily appear in the one-step shaping process of the plastic core plate are avoided.

The invention relates to a method for producing a hot rolled steel coil. The method comprises the following steps of: 1) designing components, pretreating molten iron, smelting in a converter, switching between nitrogen and argon, and performing tapping to obtain molten steel; 2) performing continuous casting on the molten steel to obtain a plate blank, controlling tundish molten steel amount to be between 8t and 15t and liquid level to be between 200mm and 350mm when a continuous casting tundish stops pouring, and pouring under protection in the entire process, wherein the length of an inserted part of a long nozzle is between 300mm and 400mm; 3) heating the plate blank; and 4) finally rolling the heated plate blank and winding to obtain the hot rolled steel coil. In the method, a thermomechanical control process (TMCP) and a relaxation-precipitation-control (RPC) rolling process are adopted, and C content and Mn content are greatly reduced by micro niobium treatment, so that production cost is reduced; the Q345q-E hot rolled steel coil produced by the method has high plasticity and toughness, and the elongation rate of the hot rolled steel coil is improved by more than 8 percent; meanwhile, the welding properties of materials are improved, and high surface quality of a continuous casting blank is guaranteed.

The invention relates to a method for producing a hot-rolled steel coil for shipbuilding, which comprises the following steps of: 1) designing components, pretreating molten iron, smelting in a converter, switching nitrogen and argon, and tapping to obtain molten steel; 2) performing continuous casting on the molten steel to obtain a plate blank, wherein the content of the molten steel in a continuously cast intermediate ladle is controlled to be between 8 and 15t and the liquid level is controlled to be between 200 and 350mm when the intermediate ladle is not poured; and pouring is protectedin the whole process, and the insertion depth of a long nozzle is between 300 and 400mm; 3) heating the plate blank; and 4) rolling and curling the heated plate blank. The content of C and Mn is greatly reduced through niobium microalloying by a thermo-mechanical controlled process-relaxed precipitation control (TMCP-RPC) rolling process, and production cost is reduced; the obtained grade D36 hot-rolled steel coil for shipbuilding has high plasticity and toughness, and the elongation of the hot-rolled steel coil is improved by over 8 percent; meanwhile, the welding performance of the materialis improved, and the high surface quality of a continuously cast blank is ensured.

The invention relates to a production method of hot rolled steel coil for shipbuilding. The method comprises the following steps of: (1) designing contents, preprocessing molten iron, then, smelting in a converter, switching nitrogen and argon and tapping to obtain molten iron; (2) continuously casting the molten iron to obtain a plate blank, controlling the molten iron amount to be 8-15t and theliquid level to be 200-350 mm when stopping casting a continuous casting tundish and wholly protecting and casting while the insertion depth of a long water opening is 300-400 mm; (3) heating the plate blank; and (4) finally, rolling and coiling the heated plate blank. The invention adopts a RPC (Relaxation-Precipitation-phase Control) and TMCP (Thermomechnical Control Process) rolling process, decreases the C and Mn contents by utilizing niobium microalloying treatment and decreases production cost. The D32-level hot rolled steel coil for shipbuilding has excellent plasticity and toughness, the extensibility is improved by over 8 percent, the welding performance of the material is improved and the favorable surface quality of a continuous casting blank is ensured.

The invention relates to a method for producing hot rolled steel coils. The method comprises the following steps: 1) designing the components, pretreating molten iron, then carrying out converter smelting, carrying out nitrogen / argon changing over and carrying out tapping to obtain molten steel; 2) continuously casting the molten steel to obtain slabs, controlling the weight of the molten steel in the tundish to be 8-15t when casting of the continuous casting tundish is stopped, ensuring the liquid level to be 200-350mm; carrying out protective casting in the whole course and ensuring the insertion depth of the long nozzle to be 300-400mm; 3) heating the slabs; and 4) finally rolling and curling the heated slabs, thus obtaining the hot rolled steel coils. The method has the following beneficial effects: the TMCP (thermo-mechanical control process)+RPC (relaxation-precipitation-controlling phase transformation) rolling processes are adopted and the contents of C and Mn are substantially reduced by utilizing micro-niobium treatment, thus reducing the production cost; and the Q345B hot rolled steel coils obtained by the method have excellent plasticity and toughness, the elongation of the hot rolled steel coils is improved by more than 8%, and at the same time, the welding property of the materials is improved and good surface quality of the continuous casting slabs is ensured.

The invention relates to an auxiliary device and a pressure holding system. The auxiliary device is used for cooperating with the pressure holding device to conduct a pressure holding product processon a touch control display panel, wherein the touch control display panel comprises a backlight sheet, a thin film transistor substrate, a color filter substrate, a touch control module and a protective cover plate which are stacked in turn, a gap is formed at an edge between the backlight sheet and the protective cover plate, an electrical connection element is arranged at an edge, away from thesurface of the protective cover plate, of the backlight sheet, in the pressure holding product process, the pressure holding device is pressed against the electrical connection element, the auxiliarydevice comprises a gasket, and the gasket can extend into the gap to support the backlight sheet to be close to the surface of the protective cover plate when the pressure holding device is pressed against the electrical connection element, so that it is avoided that the thin film transistor substrate is bent and broken toward the protective cover plate.

The invention relates to a method for producing a hot-rolled steel coil for shipbuilding, which comprises the following steps of: 1) designing components, pretreating molten iron, smelting in a converter, switching nitrogen and argon, and tapping to obtain molten steel; 2) performing continuous casting on the molten steel to obtain a plate blank, wherein the content of the molten steel in a continuously cast intermediate ladle is controlled to be between 8 and 15t and the liquid level is controlled to be between 200 and 350mm when the intermediate ladle is not poured; and pouring is protected in the whole process, and the insertion depth of a long nozzle is between 300 and 400mm; 3) heating the plate blank; and 4) rolling and curling the heated plate blank. The content of C and Mn is greatly reduced through niobium microalloying by a thermo-mechanical controlled process-relaxed precipitation control (TMCP-RPC) rolling process, and production cost is reduced; the obtained grade D36 hot-rolled steel coil for shipbuilding has high plasticity and toughness, and the elongation of the hot-rolled steel coil is improved by over 8 percent; meanwhile, the welding performance of the material is improved, and the high surface quality of a continuously cast blank is ensured.

The invention relates to a carbon fiber cloth bag cast-in-situ anti-arch curved surface combined irregular-shaped pile, which is characterized in that the upper part of the combined irregular-shaped pile is a round pile body while the lower part thereof is an anti-arch curved surface pile body, and the pile bottom is provided with an irregular-shaped prefabricated pile tip. A carbon fiber cloth bag wraps the outside of the pile body; a steel sleeve with a reinforcing plate is arranged on the top part of the combined irregular-shaped pile; a vertical drain body is filled in the cavity at the outer side of the round pile body; a vertical drain pipe communicated with the vertical drain body is preset in a cast-in-situ cover plate on the top part of the pile. The carbon fiber cloth bag arranged on the outer side of the pile body can reinforce the pile body, improve the stress performance of the pile body and enhance the integrity of the pile body; the section of the pile body on the lower part is an anti-arch curved surface which can prevent influence from excessive fullness of concrete of the pile body to the lateral friction of the pile; the section of the pile body on the upper part is round and can reduce the influence from the lateral negative friction of the pile to the performance of the pile body. The invention also discloses a construction method of the combined irregular-shaped pile.

The invention discloses a method for producing a positioning and connecting bracket, which is characterized by comprising the following steps: 1) the bracket body is formed by continuous fine blanking and burrs are removed; 2) the bracket body is bent so that the side surface with the connecting rod mounting hole and the The bottom surface with bearing mounting holes and bosses is set vertically; 3) Three mounting holes are machined with a CNC milling machine, and ultrasonic cleaning is used. The invention adopts reasonable and efficient processing procedures, and combines the processing of high-precision machine tools, high-precision fixtures and high-precision tools to realize high-precision positioning and connecting brackets, solves the processing problems in the prior art, and has breakthrough significance.

The invention relates to a method for producing a hot-rolled steel coil, which comprises the following steps of: 1) designing components, pretreating molten iron, smelting in a converter, switching nitrogen and argon, and tapping to obtain molten steel; 2) performing continuous casting on the molten steel to obtain a plate blank, wherein the content of the molten steel in a continuously cast intermediate ladle is controlled to be between 8 and 15t and the liquid level is controlled to be between 200 and 350mm when the intermediate ladle is not poured; and pouring is protected in the whole process, and the insertion depth of a long nozzle is between 300 and 400mm; 3) heating the plate blank; and 4) rolling and curling the heated plate blank. The content of C and Mn is greatly reduced through niobium microalloying by a thermo-mechanical controlled process-relaxed precipitation control (TMCP-RPC) rolling process, and production cost is reduced; the obtained Q345q-D hot-rolled steel coil has high plasticity and toughness, and the elongation of the hot-rolled steel coil is improved by over 8 percent; meanwhile, the welding performance of the material is improved, and the high surface quality of a continuously cast blank is ensured.