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.

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.

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.