3028results about How to "Improve molding quality" patented technology

The present invention discloses an electrostatic chuck sucking and supporting a substrate with an electrostatic force and an OLED manufacturing apparatus having the same. The electrostatic chuck includes an insulating plate having at least one opening penetrating a center thereof, a pair of electrodes mounted on the insulating plate, a first controller applying a voltage to the pair of electrodes, and an electrostatic charge removing unit disposed near the insulating plate and emitting ions into the at least one opening to remove electrostatic charges distributed around a side of the insulating plate.

The invention discloses a thermoplastic halogen-free and low-smoke flame retardant polyolefin sheathed plastic which comprises the following components by weigh part: 30-80 of polyolefin resin, 0-30 of blend resin, 5-20 of grafted materials, 100-150 of inorganic fire retardants, 0.5-30 of coupling agents, 0.5-1.5 of antioxidants and 1-4 of hyperbranched polymers. Compared with the prior art, because hyperbranched polysiloxane is added into the halogen-free low-smoke flame retardant polyolefin sheathed plastic, a prepared product plays a toughening role while improving the system mobility. The obtained halogen-free low-smoke flame retardant polyolefin sheathed plastic adapts to quick production and has the advantages of good flame retardant property, good cracking resistance property, storing mechanical property and good extruding and forming quality.

A double-radiant-source framework used for a container detecting system, which belongs to the technical field of radiation detection, having a horizontal accelerator, a vertical accelerator and a gantry tower composed of a left vertical girder, a right vertical girder, an upper cross girder, and a lower cross girder. A horizontal collimator and a vertical collimator are disposed in front of the frontal face each of the horizontal accelerator and the vertical accelerator. The horizontal collimator and the vertical collimator are fixed on the left vertical girder and the upper cross girder of the gantry tower, respectively. The radiation beams defined by the horizontal collimator and the vertical collimator are two planes oriented parallel to each other. A double-detector arm is disposed inside the right vertical girder of the gantry tower, and detector modules are disposed inside the double-detector arm for receiving the two different planes of radiation beams defined by and emitted from the horizontal collimator and the vertical collimator. Detector modules are disposed inside the upper cross girder and the lower cross girder respectively for receiving separately radiation beams defined by and emitted from the horizontal collimator and the vertical collimator. The container detecting system can reduce the area covered by the scanning channel of the system, and make the transportation, installation and use convenient, and improve the quality of the detected images.

The invention discloses an environmental-friendly magnesium alloy mold releasing agent which comprises organic silicon, a synthetic macromolecular compound, grease, an antirust corrosion inhibitor, a preservative, a surface active agent and water. The environmental-friendly magnesium alloy mold releasing agent has excellent flowing property, thus the generation of poor flowing property can be greatly reduced. The product has excellent adsorbing performance, thus the lubricating mold releasing performance of the product can be obviously improved; the product has excellent heat insulating performance, thus the molding quality of a workpiece can be obviously improved; meanwhile, the environmental-friendly magnesium alloy compression-casting mold releasing agent has environmental protection and high performance.

The invention discloses a pre-assembled single-compartment municipal tunnel and a construction method thereof, relates to the technical field of pre-assembled municipal spatial structure and construction and solves the problem that a cast-in-place structure of an existing tunnel is long in construction period and quality is hard to control. The pre-assembled single-compartment municipal tunnel is assembled by several pre-assembled pipe joints arranged on a concrete cushion layer and provided with longitudinal joints in sequence via butt joint, a plurality of supports with through holes are embedded in the corner of the edge of the inner wall of each pre-assembled pipe joint, pipe joint connectors with pre-stressed rebars inside sequentially penetrate the supports of the pre-assembled pipe joints along the axis, and two ends of the pipe joint connectors are anchored on the supports on the outer side respectively. The construction method includes structurally calculating according to the geological conditions and the surroundings of the tunnel; preassembling pipe joints, excavating a foundation pit of the tunnel, casting the concrete cushion layer in the foundation pit in place, sequentially docking the pre-assembled pipe joints above the concrete cushion layer via the longitudinal joints, and filling the soil back to the foundation pit.

The invention discloses a porous sintering heat-insulating hollow block and a manufacturing process thereof. According to the porous sintering heat-insulating hollow block, the void rate is 35 to 60 percent, the density is 700 to 1,000 kg/m<3>, and the coefficient of heat conductivity is less than or equal to 0.22 W/m.K. The porous sintering heat-insulating hollow block consists of the following ingredients in percentage by weight: 30 to 45 percent of solid waste, 45 to 55 percent of inorganic binder and 5 to 15 percent of micropore pore forming agent. The manufacturing process comprises the following steps of: 1, performing grain composition; 2, sieving for grading; 3, weighing raw materials; 4, mixing, homogenizing and aging; 5, extruding for forming; 6, cutting and stacking; 7, drying;and 8, sintering. The porous sintering heat-insulating hollow block is reasonable in design, convenient to realize, high in utilization rate of solid wastes, energy-saving, environment-friendly, highin void rate, low in density, high in thermal performance and strength, stable in size and difficult to crack, can be popularized and used in large areas, and has the excellent economic and social benefits.

The invention discloses a prepreg/resin film infiltration co-curing forming method for composite stiffened wallboards. The method comprises the following steps: 1, tailoring prepregs, dry fibers and resin films; 2, spreading the prepregs and sizing dry fiber preforms; 3, assembling and packaging a mould for the stiffened wallboards; 4, co-curing and forming the stiffened wallboards; and 5, demolding the stiffened wallboards. According to the method, a skin is prepared by adopting prepreg spreading, ribs are prepared by the dry fiber preforms and the resin films, and in combination with the characteristics of a prepreg autoclave process and a resin film melting process, the ribs, the skin and the adhesive interface of the ribs and the skin are cured in an autoclave at the same time, thus realizing the co-curing forming of the stiffened wallboards with different rib forms and different material systems. The method can significantly improve the forming efficiency of the stiffened wallboard structure, reduce the manufacture cost, improve the quality of products and improve the flexibility and designability of the manufacturing process and is of great significance to the efficient low-cost manufacture of the composite material stiffened wallboard structure.

The invention discloses a gold and silver hollow bracelet processing technology and belongs to the technical field of jewelry processing technologies. The processing technology comprises the following steps: preparing material: according to the specifications for processing gold and silver hollow bracelets, preparing sheet material with corresponding specifications; manufacturing a pipe: processing the sheet material into a round pipe with a gap and straightening the round pipe; annealing; calibrating: straightening the gap; welding without welding material: eliminating gap through high-temperature heating to form a gapless round pipe; cutting: cutting the gapless round pipe according to the finished size of a gold and silver hollow bracelet, and polishing two ends of the gapless round pip; pre-forming: processing the gapless round pipe into an open type circular ring, and forming a closed circular ring by performing high-temperature heating on the open type circular ring; shaping: shaping the shape of the closed circular ring until specified requirements are met; forming: processing the closed circular ring into a hollow bracelet with elliptic sections. Through the processing steps, since a only a piece of sheet material is needed, the hollow bracelet can be manufactured, the processing technology is reduced, the processing efficiency is improved, the forming effect is good, and meanwhile, the gap is closed automatically through high temperature, so that welding without welding material is achieved, and the purity and fineness are guaranteed.

The invention discloses an optimum design method for mineral aggregate gradation of a hot recycled asphalt mixture. The method comprises the steps of (1), determining engineering design gradation ranges; (2), testing the gradation of old mineral aggregates in new mineral aggregates and recycled asphalt pavement (RAP) materials; (3), testing the proportion of the old mineral aggregates with different specifications of fine particles, and the old mineral aggregates without coarse particles contained in the recycled asphalt pavement (RAP) materials, and carrying out discount calculation on the gradation of the old mineral aggregates according to test results; and (4), carrying out gradation optimum design on the hot recycled asphalt mixture according to the test and measurement results in the (1)-(3) and the engineering design gradation range. The gradation design method is high in practicability, the designed gradation of the recycled asphalt mixture is remarkably enabled to be more consistent with the engineering practice, the pavement performance of the hot recycled mixture is improved, and the service life of the hot recycled asphalt pavement is prolonged.

The invention provides a metal half hole molding method. A metal half hole of a printed circuit board (PCB) is molded through a board milling procedure before the procedures of film removing, alkaline etching and tin removing in the manufacture process of the PCB. A manufacture method of the PCB is further provided. The manufacture method includes the metal half hole molding method which is used for manufacturing the metal half hole of the PCB. By means of the metal half hole molding method and the manufacture method of the PCB, the metal half hole is molded by milling the board before the procedures of film removing, alkaline etching and tin removing, the problem of residual copper wire burr is solved, and the effect of improving molding quality of the metal half hole is achieved.

The invention discloses an automatic production line for a plate. The automatic production line comprises a measurement burdening system, a stirring system, a paving forming system, an automatic cropping system, an automatic stacking system, a first-time maintenance system, an automatic demolding system, a second-time maintenance system, a four-side cutting system and an automatic sanding system which are arranged in the machining direction of the plate. Raw materials used for producing the plate are fed into the measurement burdening system, and a plate finished product is obtained from the automatic sanding system. According to the automatic production line for the plate, automatic production of the plate can be achieved, and the work efficiency is improved. The whole production flow is close in coordination and achieved through automatic control. The usage amount of manpower is low. The production takt is compact and efficient. In addition, burdening for the product is accurate and efficient. The forming quality is high. The product quality is high. In addition, the layout is reasonable, the structure is compact, and the occupied space is small.

The invention discloses a method for manufacturing an X100 pipeline steel longitudinal submerged arc welded pipe which is a longitudinal submerged arc welded pipe for transporting oil and gas. The method comprises using an X100 controlled rolled steel plate, the chemical compositions by percentage are: 0.02 to 0.08 percent of C, 0.10 to 0.30 percent of Si, 1.60 to 2.10 percent of Mn, less than or equal to 0.02 percent of, less than or equal to 0.005 percent of S, 0.06 to 0.1 percent of V+Nb+Ti, 0.6 to 1.0 percent of Ni+Cr+Cu, 2 to 2.6 percent of Cr+Mo+Mn. The manufacturing process of the pipe includes: baiting, edge milling of the steel plate, prebending, molding, prewelding, internal welding, external welding, expanding, and chamfering, wherein the molding process is punching the steel plate by a JCO molding machine and bend the steel plate into a J-shape, a C-shape and an open O-shape in turn; the internal welding and the external welding are welding the internal side and the external side of the pipe by four-wire submerged arc welding. The method of the invention can mold the steel plate into a pipe much more approximate to a round shape, realizes high-speed welding and improves working efficiency, with the welding process ensuring the internal quality and external quality of the steel plate.

The invention discloses a hot rolling double-layer thermometal composite coiled material/plate finishing production line. The hot rolling double-layer thermometal composite coiled material/plate finishing production line comprises a feeding device, an uncoiler, a centring clamping machine, a disk type edge cutting plate shearing machine, a brake type edge cutting plate shearing machine, a brake type flushing plate shearing machine, a plate separating and turnover machine, a layering device, a turtle back straightening machine, a residue cleaning machine, a leveller, a temper mill, a sand mill, an ultrasonic detecting device, a tensioner, a first rolling machine, a second rolling machine, a double-layer combining machine, a clamping shear gauge, a movable plate shearing machine, a plate dividing machine and a film laminating machine all of which are sequentially arranged according to the advancing direction of a plate or a coiled material. The production can machine the double-layer thermometal composite coiled material and can also machine the double-layer thermometal composite plate, one machine has two functions, the production line integrates high rigidity, high precision, high stability and high efficiency of a machine tool, the working procedures are arranged reasonably, the structural design is compact, the production efficiency is high, running is stable and reliable, the investment and the energy consumption are low, operation is safe, and debugging is convenient.

The invention provides a light-weight partition wall structure and an installing method thereof. The light-weight partition wall structure is mainly characterized in that the part of a partition wall turning corner is prefabricated into an integrally formed turning corner component; a square steel pipe filled with polyphenyl granule cement is prefabricated into a construction column; and a ring beam formed by matching square steel with a U-shaped clamp element is used as a component of a light-weight partition wall, so that the technical problems of the existing polyphenyl granule light-weight ribbon board partition wall are solved; and the technical effects of shortening the construction period and practically improving the installing quality of the light-weight partition wall are achieved.