33results about How to "Solve curling" patented technology

The invention relates to soft sheepskin-imitating polyurethane resin which includes the following components: wet-method polyurethane resin, N,N-dimethylformamide, paper pulp powder, a hand feeling agent, a permeation agent, an anti-crimping agent and an oily color material. The invention also relates to a method of producing sheepskin-imitating artificial leather with the soft sheepskin-imitating polyurethane resin, wherein the method includes the following steps: 1) impregnating a base cloth in a soft sheepskin-imitating polyurethane resin mixture liquid; 2) regulating sizing quantity through extrusion, and performing solidification, water washing, drying and polishing to prepare wet-method base; and 3) performing veneering and vacuum grain suction to the wet-method base to prepare the sheepskin-imitating artificial leather. The sheepskin-imitating artificial leather has a soft and light feel, has fine and elastic hand feeling, is high in tear strength and good in weather and wear resistance, has a soft and natural surface color, has full grains and has strong stereoscopic sense.

The invention discloses a treatment method for sinking a steel casing to encounter a boulder, a steel casing structure and a drilled pile, and relates to the technical field of steel casing construction. The treatment method includes the following steps that S1, a first steel casing is inserted at a designed pile location until the bottom of the first steel casing encounters the boulder, and the diameter of the first steel casing is larger than that of a designed pile hole; S2, sweep hole operation is carried out along the inner wall of the first steel casing, the boulder at the hole wall is broken and the pile hole is excavated until the bottom of the pile hole reaches the elevation of a bottom port of the steel casing required by design; S3, a bottom port of a second steel casing is lowered to the elevation of a bottom port of the steel casing, and the diameter of the second steel casing is larger than the diameter of the designed pile hole; and S4, a gap in the first steel casing and the second steel casing is filled with concrete. According to the treatment method for sinking the steel casing to encounter the boulder, the steel casing can be lowered into the designed elevationin the pile hole, and the problem of rolled edge or stuck at the bottom port of the steel casing under the condition of steel casing sinking to encounter the boulder is solved.

The invention relates to the technical field of shell fabric weaving and specifically relates to a double-layer air layer pure separation shell fabric capable of being tailored at will. The double-layer air layer pure separation shell fabric an upper-layer plain single face and a lower-layer plain single face, wherein the upper-layer plain single face and the lower-layer plain single face are woven from 20 D asahi kasei spandex and 40 S / 1 toyobo acrylic fiber yarns, the upper-layer plain single face and the lower-layer plain single face are woven and connected together through spandex betweenthe upper-layer plain single face and the lower-layer plain single face, an a thermal-insulation air layer is formed between the upper-layer plain single face and the lower-layer plain single face, the spandex is chosen from asahi kasei 30 D spandex, and the double-layer air layer pure separation shell fabric capable of being tailored at will is woven by a six-way circular weaving method. The double-layer air layer pure separation shell fabric disclosed by the invention has the advantages that upper-layer gray cloth and lower-layer gray cloth are connected through the spandex, no chemical adhesion aid is utilized, and environmental friendliness and hygiene are achieved; the double-layer air layer pure separation shell fabric disclosed by the invention is of a unique lock structure, so thatthe shell fabric can be tailored at will, and the problem of hemming of the shell fabric after being tailored is solved; the thermal-insulation air layer is formed between the two layers of cloth, sothat the fabric has more thermal insulation and good breathability.

The invention provides a method and a device for fastening a joint corner position of a sealing strip of a front door of an automobile. The problems of deformation and failure are mainly caused by the fact that bottom section barbs of the sealing strip of a ROOF section at the top of the sealing strip of the front door of the automobile are mainly clamped through a section of a guide rail, and an installation and fastening purpose and good waterproof and dustproof sealing performance are achieved; however, near the position of a hinge of the front door, the space is narrow, an adhesive tape is not installed in place and is easy to separate from the guide rail, the sealing strip is pressed and deformed when the door is opened or closed, and an existing sealing effect disappears completely. The technical scheme includes that an inserting sheet is added at the position which is 30mm away from the edge of the guide rail of the ROOF section of the sealing strip of the front door, the inserting sheet is attached to the bottom section of the sealing strip, during assembly, the guide rail is slide in firstly, and then the sealing strip is installed and fastened, and looseness is avoided.

The invention discloses a battery pole piece and a method for preventing the battery pole piece from being curled. The battery pole piece comprises a metal current collector, wherein an active material layer is arranged on side of the metal current collector; and a high polymer material layer is arranged on the other side of the metal current collector. According to the battery pole piece disclosed by the invention, the high polymer material layer is arranged on one side, on which the active material layer does not need to be arranged, of the metal current collector, and stress caused by extension of the active material after rolling can be offset or partially offset, so that the pole piece curling problem caused by single-sided coating and rolling of the pole piece can be solved.

The invention relates to an embedded mulch covering perforating seeder, which is suitable for field film spreading and sowing, and belongs to the field of agricultural machinery. It consists of drive assembly, transmission system, drive wheel, mulch, opener, pressure wheel, electric push rod, spraying system, control box, embedded film disc, spring, duckbill perforated sowing roller, fertilizer box, row The device is composed of a seeder, a fertilizer applicator and a frame. The device is driven by the drive assembly through the drive system to drive the drive wheel to work. The opener column is installed on the adjustable frame, and the opener and the opener column are installed at 45°. On the column of the opener, two film-embedded discs at a 45° angle to the column cooperate with the opener to complete the film laying. Duckbill punching sowing rollers are installed at the rear end of the rack, and the distance between each duckbill is adjustable. A truncated conical pressing wheel is installed at the rear end of the whole machine, and the pressure can be adjusted by the monitoring system according to agricultural requirements. Duckbill perforated sowing roller, fertilizer box, seed meter and fertilizer applicator constitute the sowing system of the device. The device is designed with two sets of sowing systems, which are installed equidistantly on both sides of the frame to complete the fertilization and sowing process. The control box controls the lamination strength of the device by controlling the expansion and contraction of the electric push rod.

The invention discloses a low-shrinkage treatment method and afterfinishing method of high-elastic fabric and high-elastic fabric; the low-shrinkage treatment method of the high-elastic fabric comprises: washing the high-elastic fabric; dewatering the treated high-elastic fabric; scotching the high-elastic fabric; drying the high-elastic fabric. The low-shrinkage treatment method of the high-elastic fabric provided herein has an additional treatment step in the original fabric afterfinishing method; low-shrinkage treatment is arranged before pre-shrinkage treatment. The high-elastic fabric treated by the low-shrinkage treatment method gains high elasticity and low shrinkage, the difficulty in manufacturing high-elasticity ready-made apparel and washing the ready-made apparel is reduced greatly.

The invention discloses a knitted fabric and a preparation method thereof, wherein the knitted fabric comprises mutually woven A yarn and B yarn, the A yarn comprises double cotton yarns input in the same way, and the B yarn comprises a fiber network with special-shaped cross-section input in the same way Silk, low-melting chemical fiber and elastic yarn; in the organizational structure of the knitted fabric, the low-melting chemical fiber is bonded to the same path of special-shaped cross-section fiber network silk and elastic thread, and is bonded to the A yarn or B yarn of the adjacent path. The preparation method includes the following steps: S1. Weaving: input A yarn and B yarn in different ways for weaving; A yarn includes double cotton yarns input in the same way, and B yarn includes fiber network filaments with special-shaped cross-sections, low-melting chemical fibers and Stretch yarn; S2. High temperature setting: adjust the setting temperature to melt the cortex of the low melting point chemical fiber to produce adhesion effect. The invention makes the fabric anti-rolling, effectively solves the curling problem of the single-knitted fabric, and provides great convenience for the knitted fabric to make clothes.

The invention relates to a non-cutting type circular knitted fabric singeing wrinkle-removing and setting machine, which belongs to the field of textile printing and dyeing machinery. It includes frame, cloth feeding device, singeing chamber and cloth falling device. Expansion device, above the inner support sleeve-shaped expansion device, there is a cylindrical flattening expansion device, and an annular singeing burner is arranged around the inner support sleeve-shaped expansion device. The invention solves the curling problem of knitted fabric which is difficult to be solved by the shearing type singeing device. The process is simple, the efficiency is high, and the phenomenon of oblique pulling will not occur. It is prone to the disadvantages of stripes and singeing marks.