30results about How to "Good coiling effect" patented technology

The invention discloses a 6016-series aluminum alloy sheet for a vehicle body and a production method thereof. The aluminum alloy sheet comprises the following chemical components in percentage by mass: 1.0-1.5% of Si, 0-0.50% of Fe, 0-0.20% of Cu, 0-0.20% of Mn, 0.25-0.60% of Mg, 0-0.10% of Cr, 0-0.10% of Zn, 0-0.10% of Ti, and the balance of Al. The production method comprises the steps of batching-smelting-converter-furnace side refining-standing-casting-sawing-surface milling-ingot homogenization-hot rolling-intermediate annealing-cold rolling-electrospark frosting-finished product cold rolling-solid solution quenching-drawing correction-Ti / Zr passivation-preageing-finished product coiling. The aluminum alloy sheet can provide a high-grade vehicle body sheet to users, improves the yield in punching, reduces the vehicle manufacturer cost, improves the formability and the baking hardness of aluminum alloy sheets, and is broad in market prospect and prominent in economic benefit.

A rolling-up device of conveying belt in flat-knitting machine, which contains small roller, small roller axle, large roller axle, rolling-up belt, two driving axle, two groups of belt driving mechanism, several matched press-wheel acting adjusting mechanism and press-wheel fixing adjusting mechanism. Said invention has advantages of automatic adjusting rolling-up gap, small size, fine rolling-up effect, easyinstallation and adjustment, simple structure, and low cost.

A hot-rolled sheet coiling machine with better coil-helping performance has a reel, coil-helping rollers, swinging arms for supporting said coil-helping rollers, and hydraulic cylinders for driving said swinging arms. It features that 1-3 coil-helping roller are additionally used for increasing the points to where the pressure is applied, so improving its coil-helping performance.

The invention discloses a preparation method of an HOY spring wire. The method comprises the steps that 1, polyester chips are pretreated; 2, the polyester chips are melted into a spinning fluid through a screw extrusion machine; 3, the spinning fluid is pressed into a spinning component and sprayed out through a spinneret plate, and tows are formed in a spinning window; 4, the tows are subjected to cross air cooling, oiling, bundling and antistatic treatment and then further cooled through a spinning channel, wherein the cross air blasting speed is 0.5-0.9 m / s; 5, the cooled tows pass through a pre-interlacing device to enable the oil uniform saturability to be better, wherein six pre-interlaced nozzles are arranged, and the pre-interlaced pressure is 0.8-2 kg; 6, the tows are stretched through a godet at a high speed, nodes are made through a main interlacing device, and then winding formation is achieved through a high-speed winder, wherein the W / D speed is 5,900-7,900 m / min. According to the preparation method of the HOY spring wire, the number of traditional pre-interlaced nozzles is decreased to six, the pre-interlaced pressure is decrased to 1.0 kg, the cross air blasting speed is decreased to 0.7 m / s, and the spinning wheel speed is decreased to 5,900-7,900 m / min; under the technological conditions, the obtained HOY spring wire is good in winding effect and excellent in performance.

The invention relates to a preparation method of a cast iron roller of a pinch roll of a recoiler. The preparation method comprises the following steps that 2.5-3.6 percent by weight of C, 0.5-5.0 percent by weight of Ni, 0.1-3.8 percent by weight of Cr, 1.0-3.0 percent by weight of Si, 0.2-2.7 percent by weight of Nb, 0.5-3.5 percent by weight of Mn, 0.1-2.2 percent by weight of Mo, 0.1-1.2 percent by weight of Cu, 0-1.7 percent by weight of W, less than 0.05 percent by weight of P, less than 0.06 percent by weight of S and the balance of Fe are melted at 1,450 DEG C in an induction melting electric furnace to obtain a melt; the melt is superheated to 1,500-1,550 DEG C, and is thermally insulated for 20-30 min, slag on the surface of the melt is removed, and the temperature of the melt is regulated to 1,400-1,450 DEG C; 0.5 percent of Si when the melt is discharged from the induction melting electric furnace; the melted solution is poured in a preheated centrifugal casting mold for casting; and the cast is cooled and solidified to obtain the alloy cast iron roller. The alloy cast iron roller is heat-resistant, wear-resistant, and is long in service life, and low in cost; and moreover, steel is not stuck on the alloy cast iron roller.

The invention relates to a strip steel coiling system, a high-strength steel coiling method based on the strip steel coiling system and a high-strength steel production line adopting the strip steel coiling system. The coiling system comprises a coiling machine, a steering pinch roller and a coil unloading vehicle. The steering pinch roller is connected with the coiling machine through a strip penetrating guide plate, and a bending machine is arranged on the feeding side of the steering pinch roller; and at least one auxiliary pressing roller is arranged around a winding drum of the coiling machine, the axial directions of the auxiliary pressing rollers are parallel to the axial direction of the winding drum, and the auxiliary pressing rollers are provided with auxiliary pressing roller driving units so as to have working positions in rolling contact with a steel coil and standby positions away from the steel coil. The bending machine can straighten strip steel at the initial stage ofcoiling to prevent the strip penetrating guide plate from being damaged, the strip steel is made to generate plastic deformation at the final stage of coiling, rear tension can be provided for coiling, and bounce of the outer-ring strip steel can be reduced; and the auxiliary pressing rollers can enable the strip steel to be attached to the winding drum / steel coil in the coiling process, the winding effect of the strip steel is improved, and the problem that when high-strength steel and other steel types are wound, bumps exist near a jaw can be avoided.

The invention provides a device for coiling a half-product zero-degree belted layer. The device for coiling the half-product zero-degree belted layer comprises a first guide roller, a machine frame rack, a second guide roller, a baffle, a track, a pull rod, a cylinder, a chuck and a driving motor. The first guide roller and the second guide roller are arranged at the front end of the machine framein an assembled mode. The first guide roller is arranged on the left side of the second guide roller, the chuck is mounted at the front end of the driving motor in an assembled mode, and the pull rodis arranged on the lower side of the chuck. The cylinder is fixed to the rear end of the pull rod, the cylinder is arranged on the left side of the driving motor, the track is arranged on the left side of the pull rod, and the baffle is arranged on the left side of the track. The design has high control precision, low noise, convenient use and operation, high control precision and improves the coiling effect.

Provided is an excellent release film for producing a ceramic green sheet, the release film being capable of attaining both satisfactorily suitability for winding and prevention of pinholes, local thickness unevenness, etc., even when forming a ceramic green sheet having a reduced thickness. The release film for producing a ceramic green sheet comprises a substrate that is a polyester film containing substantially no particles, a release coating layer formed on one surface of the substrate, and an easy-to-slip coating layer formed on the other surface and containing particles, wherein the easy-to-slip coating layer has an average surface region roughness (Sa) of 1-25 nm, a maximum projection height (P) of 60-500 nm, and an average roughness-curve-element length (RSm) of 10 [mu]m or less.

The invention provides an anti-vibration plate which is roughly of a platy structure comprising a first portion and a second portion, wherein the first portion and the second portion are integrally connected, and various through holes are arranged on the second portion. The invention further provides a material transport device applying the anti-vibration plate. By the aid of the anti-vibration plate, vibration range and vibration frequency of materials are reduced during high-speed moving of materials, so that a transportation process is more stable and fracture of the materials occurs less. In addition, the anti-vibration plate is free of power consumption, simple in structure, assembling, adjusting and maintenance, quite low in cost, more energy-saving and environment-friendly and capable of effectively preventing vibration of the materials. Multiple anti-vibration plates can be mounted at various positions during the whole transportation.

The invention discloses a net reel large roller for examining a papermaking forming fabric, wherein all the surface of the net reel large roller is evenly packed with a specific flat belt, and a paste face of the flat belt is pasted onto the surface of the large roller through glue. The invention further discloses a packing method of the net reel large roller for examining the papermaking forming fabric, wherein the packing method comprises the following steps of: cutting a corner of which the length is equal to the perimeter of the large roller and the width is equal to the width of the specific flat belt from one end of the glazed specific flat belt; coating the glue on a paste face between the large roller and the glazed specific flat belt in a rolling way; and pasting from one corner of the glazed specific flat belt and one side of the large roller, and coating the glue by the large roller in a rolling way till the surface of the large roller is completely packed with the glazed specific flat belt. According to the net reel large roller, the glazed specific flat belt is evenly packed on the surface of the large roller, and a glaze of the glazed specific flat belt faces out, so that the damage of the large roller to the forming fabric can be effectively reduced.

We provide: CNT fibers made of aligned carbon nanotubes (CNTs), which are thin, have little unevenness in thickness, have good windability during coil processing, and have excellent electrical conductivity. The present invention relates to CNT fibers composed of carbon nanotubes (CNTs) and a method for producing the CNT fibers, wherein the thickness of the CNT fibers is 0.01 μm to 3 mm, and the unevenness of the thickness is 0.2 or less in terms of coefficient of variation, in terms of roundness The distribution ratio a is 40% or more and the distribution ratio b is 70% or more, and the production method includes the following steps: a spinning step, discharging an aqueous dispersion containing carbon nanotubes (CNT) and a surfactant to an organic solvent containing In the coagulation bath, the CNT aggregation structure in the shape of a filament is obtained; and, in the pulling step, the obtained CNT aggregation structure is continuously pulled from the coagulation bath at a line speed higher than the discharge line speed.

Provided is an ethylene-a-olefin copolymer that has a monomer unit based on ethylene and a monomer unit based on C3-20 a-olefin. Said ethylene-a-olefin copolymer has a melt flow rate between 0.01 and 100 g / 10 min, a density between 860 and 970 kg / m , a molecular weight distribution between 5.5 and 12, and a flow activation energy between 50 and 100 kJ / mol. Letting the maximum take-up velocity of the provided copolymer at 150 DEG C be MTV150 and the maximum take-up velocity at 190 DEG C be MTV190, MTV150 is at least 40 m / min and is less than MTV190.

The invention discloses a multi-station full-automatic center surface recoiling machine. The multi-station full-automatic center surface recoiling machine comprises a machine frame, a traction wheel set, a floating roller set, a pressing wheel set and a recoiling and turning mechanism, wherein the traction wheel set, the floating roller set, the pressing wheel set and the recoiling and turning mechanism are sequentially arranged on the machine frame. A film breaking cutter mechanism is arranged at the position, corresponding to the position between the pressing wheel set and the recoiling and turning mechanism, of the machine frame. The multi-station full-automatic center surface recoiling machine is ingenious in structural design, and multiple recoiling stations are reasonably arranged. When roll replacement needs to be conducted, the recoiling and turning mechanism turns so that new recoiling shafts can be parallel to a pressing wheel, the film breaking cutter mechanism is started to cut off a film, the new round of recoiling work is started while recoiling is started, the roll replacement time is effectively saved, and the work efficiency is greatly improved. Meanwhile, during winding, under the cooperation of the pressing wheel set, pressure is effectively kept constant, stability is high, the bubble removal effect is greatly enhanced, the recoiling effect is good, and the product quality is ensured. In addition, a film storage set is additionally arranged, a whole production line does not need to halt during roll replacement, and the production efficiency is improved to a great extent.

Provided is a coiled material ironing roller device of a high-speed cold-rolling mill. A coiled material is tightened by a corner wrapping roller and then wound on a winding roller, and an ironing roller is disposed at one end of a lever; a projection point B of a rotary axis of the lever, a projection point A of an axis of the winding roller and a projection point C of the coiled material at a position away from a tangent of the corner wrapping roller are located on the same straight line; a projection point of an axis of the ironing roller is D; and in terms of length, AB=BC, and DB=AB+L, wherein L is less than or equal to 80 mm and greater than or equal to 35 mm. With a moving trajectory of a winding and cutting point as an object of study, the ironing roller can relatively constantly press the position 3-5 cm away from the winding and cutting point, thereby realizing the aim of the optimum coiled material winding effect. A constant pressure mechanism can exert constant pressure onthe coiled material by the ironing roller only by shaking an oil cylinder to output constant thrust, thereby simplifying a constant pressure control system of the ironing roller device.

[Problem] To provide a mold release film for producing ceramic green sheets that is excellent in both good windability and prevention of pinholes and partial thickness unevenness even when the ceramic green sheets are thinned. [Solution] A mold release film for producing ceramic green sheets, which uses a polyester film substantially free of inorganic particles as a base material, has a mold release coating layer on one surface of the base material, and is released from the mold by the above-mentioned mold release. In the nanoindentation test on the coating layer, the elastic modulus of the film measured from the surface on the opposite side to the substrate in the release coating layer is 2.0 GPa or more, and the other surface of the substrate has An easy-slip coating layer containing particles, the area of ​​the easy-slip coating layer having an average surface roughness (Sa) of 1 nm or more and 25 nm or less, a maximum protrusion height (P) of 60 nm or more and 500 nm or less, and an average width of contour cells (RSm) is 10 μm or less.

The invention discloses an industrial canvas coiling device. The device comprises a conveying belt, a fixed top frame is arranged on the outer side of the tail end of the conveying belt, a canvas pressing limiting plate is arranged on the lower side of the fixed top frame, a fixed rod is arranged at the position, below the canvas pressing limiting plate, of the fixed top frame, the fixed rod is sleeved with a movable cylinder, rotating shaft mounting heads are arranged at the lower end of the movable cylinder, a rotating shaft is connected between the two rotating shaft mounting heads, a coiling disc is fixedly mounted on the rotating shaft, the movable cylinder is fixedly connected with the fixed top frame through a tension spring, a pair of parallel guide rods are arranged between the tail end of the conveying belt and the fixed top frame, and the parallel guide rods are fixed to a lifting base; and the coiling disc can automatically descend along with increasing of the amount of coiled canvas, after the coiling disc is taken away, automatic resetting is achieved, arrangement of a drive mechanism is omitted, the structure is simplified, and the cost is reduced. Along with automatic descending of the coiling disc, the canvas pressing limiting plate can continuously flatten the canvas, the good coiling effect is ensured, and arrangement of the parallel guide rods further ensure the coiling effect.

The invention discloses a reinforced plastic composite coiled tubing coiling performance detection testing machine and a detection method. The testing machine comprises a sliding vehicle, a track, sample joint guide rails and a traction system, the upper half portion of the sliding trolley is a first coiling device, the lower half portion of the sliding trolley is a second coiling device, and thefirst coiling device and the second coiling device are each provided with a plurality of roller track frames. The number of the sample joint guide rails is two, the sample joint guide rails are vertically arranged above supports on the two sides of the sliding trolley respectively, a reinforced plastic composite coiled tubing sample is installed on the sample joint guide rails in a sliding mode and slides on the sample joint guide rails in cooperation with the reinforced plastic composite coiled tubing sample through sliding of the sliding trolley, and the sample is coiled on the first coilingdevice or the second coiling device. According to the testing machine and the detection method provided by the invention, the field working condition can be simulated; moreover, the testing machine is simple and convenient to operate and high in test efficiency, can form any size to simulate different disc pipe frame scrolls, can replace a large number of existing disc pipe frame real objects, saves the test cost and laboratory space, and is easy to evaluate the coiling performance of the reinforced plastic composite continuous pipe.

The invention discloses a rapid winding rack for an insulating rope. A fixation part comprises two supporting legs and two supporting shoes. Each supporting shoe is provided with an elongated slot; the two supporting shoes are hinged together in a width direction; the two supporting legs respectively pass through the elongated slots suspended on the supporting shoes; each supporting leg is provided with threaded holes along the cross section direction of the supporting leg; the two supporting legs are connected by adopting a threaded connector and are locked by using a nut; one of the two supporting legs is also connected with a cross bar; a winding part comprises an I-shaped support; the I-shaped support is of an integrated structure or a structure which consists of a left half and a right half and is formed by movably and detachably connecting the left half and the right half. The rapid winding rack for the insulating rope disclosed by the invention is lighter in total body mass, higher in strength and is easy to carry. By adopting the adjustable fixation part, the requirement on an installation occasion is low, and the fixation part can be installed in various occasions, and therefore, the rapid winding rack for the insulating rope is convenient to install. By adopting an adjustable crank, the radius of rotation can be conveniently changed, so that the moment of rotation is increased to achieve a labor-saving effect.