89results about How to "Small arc" patented technology

The invention discloses an independent tobacco cutting process and independent tobacco cutting equipment based on paper making method regenerated tobacco leaf processing characteristics. The process comprises the following process steps: opening a box, shoving tobacco leaves, loosening, regaining moisture, cutting, drying and mixing. The equipment comprises a box opening machine, a tobacco leaf shoving machine, a high-frequency-vibrating loosening machine, a moisture regaining machine, a cutting machine and a roller cut tobacco drying machine, wherein the mechanisms can be arranged and can operate alone or in combination through the connection by a material conveying and feeding mechanism. The process and the equipment can cut the boxed regenerated tobacco leaves independently according to the processing characteristics of the boxed regenerated tobacco leaves, thereby improving the effective utilization rate of the paper making method regenerated tobacco leaves, effectively retaining fragrance, improving visual quality, and making the prepared regenerated cut tobacco uniform in length and good in looseness so that the cut tobacco can be blended with other cut tobacco uniformly. The process and the equipment have high adaptability; meanwhile, according to the change in the form of supplied materials, 'three-step method' tobacco cutting adopted in the prior art is changed into one-step cutting with the same effect, the production efficiency is improved and the production cost is lowered.

The invention discloses an air conditioner and a control method and device of the air conditioner. The air conditioner comprises an indoor unit. The indoor unit comprises a machine shell, an air handling module, multiple sets of air inlet adjusting assemblies and a switching valve. An air conditioning air flue is defined in the machine shell, and an air inlet is arranged on the machine shell. An upper air inlet area and a lower air inlet area are formed by the air inlet. The air handling module comprises a shell. A fresh air flue is defined in the shell. The method comprises the following steps that when the air conditioner operates by starting a heating mode, the air inlet is adjusted to be in the maximum air inlet state through the multiple sets of air inlet adjusting assemblies; the airinlet temperatures of the upper air inlet area and the lower air inlet area are acquired, and the temperature difference value is acquired; when the operation time reaches the first preset time, thetemperature difference value is judged; and if the temperature difference value is larger than the first preset temperature difference, the switching valve is controlled so as to control the air conditioning air flue to communicate with the fresh air flue, so that the indoor vertical temperature difference is reduced. The indoor heating power lamination phenomenon during heating operation of the air conditioner is effectively relieved, and therefore the indoor heat comfort is improved.

The invention relates to a forming method for a multiple graphical mask layer and a semiconductor structure. The forming method for the multiple graphical mask layer includes the steps that a semiconductor substrate is provided, and a material layer to be etched is formed on the semiconductor substrate; a plurality of discrete stack structures are formed on the surface of the material layer to be etched, and the stack structures comprise sacrificial layers and first mask layers located on the surfaces of the sacrificial layers; part of the sacrificial layers are etched back along the two sides of the stack structures, so that the profile image of the stack structures is in a T type; a second mask layer is formed on the surface of the material layer to be etched and covers the surfaces and the lateral walls of the T-type stack structures; the second mask layer is etched, and side walls are formed on the lateral walls of the sacrificial layers below the first mask layers of the T-type stack structures; the first mask layers and the sacrificial layers are removed, and the side walls are the multiple graphical mask layer. The side wall is formed on the lateral walls of the sacrificial layers of the T-type stack structures, so that morphology difference between lateral walls on the two sides of the side walls is reduced.

The invention discloses a metal film preparation method. The method comprises the following steps: 1, coating an adhesive in a selected area on the surface of a metal substrate; 2, allowing the adhesive to stand for drying to form an adhesive layer, and coating a metal film on the surface of the metal substrate and the adhesive layer; and 3, infiltrating the metal substrate in an organic solvent after the coating completion to soften the adhesive layer, and carrying out ultrasonic treatment of the metal substrate in the organic solvent to remove the adhesive layer to obtain a metal film having a stepped structure. The adhesive is coated to protect the partial surface of the substrate, and steps are formed on the surface of the film through the adhesive removal mode, so the completeness and edge clearness of the stepped structure of the metal film are guaranteed. The metal film prepared in the invention is suitable for contourgraphs and scanning probe microscopes to measure the heights of the steps of the metal film and standardize the thickness of the film, and is also used for the metering calibration of non-contact direct thickness testers (such as X-ray diffractometers and X-ray fluorescence thickness testers).

The invention discloses a method for cold-bending dovetail groove in fireproofing accurate steel materials or other metal materials, the materials comprise right angle grooves of which the steel strip longitudinal roller is bent to be in cap shape, and the top part and the lateral part of the groove is bent backwards to arc shape until the bend angle achieves the requirements of the dovetail angle according to the product requirement, the arc part of the top part and the lateral part of the groove is pressed and planished ; the invention also discloses the equipment suitable for the method, as the bent section of the steel plate is located at the radial face of the roller, therefore, the bent point can be exerted with sufficient forming pressure with ease, the arc of the bent point is small, the equipment is simplified, and the production is stable and the forming speed is fast.

The invention provides an opposite feeding door of electronic determining weigh, including driving device installed on the frame, feeding door mechanism, and driving mechanism connected between feeding door and driving device, where the feeding door mechanism is composed of two feeding doors which are connected with each other through shaft and blanking cylinder, the driving mechanism includes a driving shaft with one end connected with the driving device and the other end installed on the frame through bearing, there is a swing block installed on the driving shaft, the upper and lower feeding doors are hinged with the inner and outer pull rods, respectively, the other two ends of the inner and outer pull rods are hinged with the swing block, respectively. It can cooperate with the high-speed weighing electronic determining weigh, implementing high speed multistage feeding.

The invention belongs to the technical field of bonding gold wire processing, in particular to a 4N bonding gold wire capable of being processed to phi 6 micrometers through wire drawing and a preparation method of the 4N bonding gold wire. The 4N bonding gold wire comprises gold and an alloy additive. The alloy additive is formed by copper, vanadium, magnesium, palladium, silver, nickel, bismuth,beryllium, cerium, zinc, yttrium, calcium, gadolinium, aluminum and lead. According to the prepared bonding gold wire, the alloy additive of the specific components and content is added, the drawingstrength of the gold wire can be improved through the alloy additive, and the radian of the bonding gold wire can be reduced; the prepared bonding gold wire has the good low and long radian through adding of the additive and the reasonable proportion while guaranteeing high strength; the prepared gold wire has good drawing strength, heat conductivity, resistance and low and long arc length; and meanwhile, axial long crystals are formed after a single-crystal continuous casting method is adopted for casting, high purity and a continuous columnar crystal structure are achieved, a transverse crystal boundary is eliminated, casting defects are avoided, and the prepared gold wire can be processed to 6 micrometers.

The invention discloses a mould frame bending machine. The mould frame bending machine comprises a bending base and a plurality of adjusting mechanisms, wherein front and rear sides of the top end surface of the bending base are perpendicularly equipped with supporting stand columns; the tip end of a hydraulic cylinder is rotatably hinged with an inverted-H-shaped wheel through a connecting frame;a plurality of slide blocks are blocked between two ring-shaped slide slots in a sliding mode; the outer wall of each slide block is welded with a regulating rod in a radial direction of the inverted-H-shaped wheel; the outer wall of each regulating rod is in sliding sleeving connection to a hollow sleeve; each regulating mechanism is separately positioned on a position between adjacent two hollow sleeves; the bottom end of each regulating rod is welded with a bending guide rod which is distributed in the horizontal direction; front and rear ends of the bending guide rod at the leftmost sideare rotatably arranged on the right side of the top end surface of the bending base through hinged frames; front and rear ends of the bending guide rod at the rightmost side are perpendicularly equipped with hanging rods; and a rolling guide rod is rotatably arranged between side walls of the bottom ends of the two hanging rods. The mould frame bending machine disclosed by the invention conveniently meets bending operation, with different bending needs, of a mould frame.

The invention discloses a rotational molding surfboard and a manufacturing technology of the rotational molding surfboard. The rotational molding surfboard comprises a surfboard body, wherein the surfboard body is of a hollow structure with the front pointed and the rear blunt and is in the shape of a leaf, a streamlined concave portion is arranged on the top of the surfboard body, a plurality of convex tail fins are arranged at the bottom of the surfboard body, and a finished product of the surfboard is made through rotational molding hollow mold opening, material feeding, heating and rotation, forming and mold release, spraying, cooling, mold release and edge scraping processing. The rotational molding surfboard is simple in structure; because the rotational molding surfboard is provided with the tail fins, the effects that the surfboard is safe, durable and easy to operate can be achieved, production efficiency of the surfboard is improved, technological operation difficulty is reduced, and the purposes of standardization and batching are achieved.

The invention relates to a laser welding method for a repairing penetrating defect of base metal. The method comprises the following steps that S1, the to-be-repaired defect of the base material is pretreated and machined into a groove weld joint with a wide upper portion and a thin lower portion; S2, the width of a weld joint lower groove is determined, if the width of the lower groove is greaterthan the diameter of a welding wire, at least one layer of convex weld welding are conducted on the two sides of the lower groove side by side in the length direction of the weld joint until the width of the lower groove is the same as the diameter of the welding wire, then priming layer welding is conducted on the weld joint between convex welds on the two sides, and if the width is smaller thanor equal to the diameter of the welding wire, the priming layer is directly welded; S3, multiple welding layers are superimposed and welded on the priming layer, a welding layer zone is formed, and the top of a welding layer block is lower than a weld joint upper groove; S4, a repair layer is superimposed and welded on the welding layer block, and the top of the repair layer is higher than the weld joint upper groove; and S5, the repair layer higher than the upper groove is ground, and thus the repair layer is flush with the upper groove.

The invention discloses a broadening rolling method with dynamic roll gap control. The broadening rolling method comprises the following steps of improving hydraulic pressure response speed, when a steel plate is in a last pass of broadening passes, lifting up a roll gap 1-2mm in the process of biting steel, pressing the roll gap 3-4mm in the process of steel plate rolling after normal biting steel, and pressing the roll gap when 400mm length of the steel plate is achieved through normal rolling. When the steel plate is close to the tail, the roll gap is lifted up 3-4mm to obtain a steel plate which is U-shaped. By the adoption of the broadening rolling method with the dynamic roll gap control, circular arcs of the head and the tail of the steel plate can be reduced, non-planed size is reduced, and yield is improved.

A carding machine comprises a rack, wherein a licker-in roller, a cylinder and a doffer are successively mounted on the rack from front to back; a first carding region cover plate, a second carding region cover plate and a third carding region cover plate are successively mounted on the top of the cylinder from front to back and correspond to the rack; a gap is formed between the first carding region cover plate and the second carding region cover plate; and a gap is also formed between the second carding region cover plate and the third carding region cover plate. The carding machine is provided with the three carding cover plates, three carding regions are formed, the first carding region has main effects of neatening, smoothly carding fibers and preliminarily discharging impurities andlower piles, the second carding region is further used for neatening, carding the fibers and preliminarily discharging the impurities and the lower piles, the third carding region has main effects ofprecisely carding and further discharging the impurities and lower piles, each of the three carding region cover plates is provided with a cover plate cleaning device, the three carding region cover plates can be cleaned independently, and after being cleaned, the carding cover plates can be rapidly and efficiently used in carding operation. The carding machine is divided into three portions, radian occupied by each carding cover plate is also reduced, the carding cover plates can be cleaned as quickly as possible, the cover plate cleaning efficiency is further improved, and a carding effect is ensured.

The invention discloses a plate processing flattening arrangement device and a use method. The device comprises a bottom fixing plate, the left side of the bottom fixing plate is fixedly connected with a left supporting plate in a perpendicular mode, a group of left shaft holes which are transversely arranged are formed in the left supporting plate, the left shaft holes are connected with left bearings, the right side of the bottom fixing plate is fixedly connected with a right supporting plate, and the right side of the bottom fixing plate is fixedly connected with a right supporting plate ina perpendicular mode, a group of right shaft holes which are transversely arranged are formed in the right supporting plate, and the right shaft holes are connected with right bearings; and the leftbearings and the right bearings are connected through lower transverse shafts, the lower transverse shafts are connected with lower pressing rollers, the lower pressing rollers comprise the lower middle convex pressing roller, a lower middle concave pressing roller and a lower flat pressing roller, moreover, the lower middle convex pressing roller, the lower middle concave pressing roller and thelower flat pressing roller are arranged in sequence, the lower middle concave pressing roller is corresponding to an upper middle concave pressing roller, the lower middle convex pressing roller is corresponding to an upper middle convex pressing roller, and the lower flat pressing roller is corresponding to an upper flat pressing roller. The device and the method are used for plate processing flattening arrangement.

A pre-twisted damping anti-vibration hammer. The invention relates to the improvement of a pre-twisted anti-vibration hammer upper wire clip structure. It can effectively enhance the anti-loosening and anti-slip capabilities of the anti-vibration hammer, ensure the accurate installation position of the anti-vibration hammer and protect the cable from damage. It includes a wire clip, the upper part of which is hook-shaped, and the hook-shaped hook surface is a wire clamping surface, and a damping anti-skid pad is provided on the wire clamping surface. The invention increases the sliding friction force between the anti-vibration hammer and the cable, improves the anti-sliding ability of the anti-vibration hammer, ensures the correct installation position of the anti-vibration hammer, and can protect the cable from damage. In order to ensure the reliability of the connection between the damping anti-slip pad and the clamp, a bump and a mounting hole are provided, and the elasticity of the material of the damping anti-slip pad is used to embed the bump into the mounting hole; it can prevent the damping pad from slipping relative to the anti-vibration hammer verb: move. In order to increase the reliability of the connection with the wire, the curvature of the upper part of the clamping surface is also reduced to be smaller than the curvature of the wire, which is equivalent to clamping the wire in a small arc.

The invention discloses a speaker system with eight acoustic radiators, wherein six of the eight acoustic radiators and two passive radiators are successively arranged based on a certain rule to constitute the speaker system with an array consisting of eight acoustic radiators, and the two passive radiators are respectively arranged in a first position and a fifth position in the array. The speaker system in the invention can have a wider radiator angle in the working frequency range of the speaker system, and the low frequency response is improved. The speaker system has the advantages of wider radiation angle in the working frequency range, uniform radiation sound field, ideal low frequency response, simple design method, low cost and convenience in use.