14results about How to "Dense tissue structure" patented technology

The invention relates to the technical field of textile machinery, and discloses a textile thread positioning device for textile production and processing, which comprises a bottom plate, a mounting frame fixedly connected to the top of the bottom plate, a mounting disc fixedly connected to the top of the mounting frame, and guide wheels rotationally connected to two sides of the inner wall of the mounting disc through rotating shafts, and further comprises an absorption assembly, comprising a side plate fixedly connected with the right side of a dispersion box, a buffer pipe is fixedly connected to the surface of the side plate, a vibration pipe is fixedly connected to the bottom of the inner wall of the buffer pipe, and a buffer tank is fixedly connected to the end, away from the inner wall of the buffer pipe, of the vibration pipe. By arranging the absorption assembly, when the interior of the buffer tank is compressed, gas is exhausted outwards, and airflow is sprayed outwards through the absorption holes in the surface of the contact clamp and blown to the multiple strands of spinning threads in the dispersion box, the airflow can separate the multiple strands of wound spinning threads, and the spinning threads are prevented from being wound or misplaced; and the organization structure of the textile fabric can be more uniform and compact.

The invention relates to the technical field of PETG polyester materials, and particularly discloses an impact-resistant modified PETG polyester material and a preparation method thereof, and the impact-resistant modified PETG polyester material comprises the following components: 50-80 parts of PETG resin, 10-30 parts of an impact-resistant modifier, 5-15 parts of a wear-resistant reinforcing agent, 1-5 parts of a stabilizer, 1-3 parts of a lubricant, 2-8 parts of a corrosion-resistant additive, and 1-3 parts of an antioxidant. The impact modifier is formed by compounding a methyl methacrylate-butadiene-styrene copolymer, an acrylonitrile-butadiene-styrene copolymer and an ethylene-octene copolymer according to a compounding ratio of 1: 1: 3, and the wear-resistant enhancer is formed by compounding ultra-high molecular weight polyethylene micro powder, nano ceramic particles and polytetrafluoroethylene micro powder. The compounding ratio range is 1: 1: 2. According to the impact-resistant modified PETG polyester material and the preparation method thereof, the impact-resistant modified PETG polyester material has relatively good impact resistance, wear resistance, corrosion resistance and oxidation resistance.

The invention relates to a preparation method and application of a binary formula Dai pottery pug. The preparation method comprises the following steps: taking Dai pottery clay in the HongRiver basin, Wuhua soil in the HongRiver county and charcoal dust, and exposing and weathering the Dai pottery clay and the Wuhua soil for at least three months; the mass content of SiO2 in the Dai clay in the HongRiver basin is not less than 50%, the mass content of Al2O3 is not less than 15%, the mass content of Fe2O3 is not less than 10%, and the ignition loss is less than 10%; the content of SiO2 in the Wuhua soil in the Honghe county is 72%-82%, the content of Al2O3 is 9%-12%, and the content of Fe2O3 is 3%-5%; the preparation method comprises the following steps: adding water into the Dai pottery clay and the Wuhua soil according to the mass ratio of the Dai pottery clay to the Wuhua soil to the charcoal powder of (100-120): (40-50): (8-10), fully soaking, then carrying out ball milling, sieving slurry, then adding the charcoal powder, uniformly stirring, squeezing mud, draining, pugging and exhausting. According to the invention, the throwing and compression molding performances of the Dai pottery clay can be improved, the sintering temperature and the compactness and strength of the structure of the Dai pottery clay can be improved, and the burn out rate can be reduced.

The utility model discloses a moisturizing and water locking type core layer, which relates to the technical field of textile fabrics, and comprises two groups of outer water absorbing layers and a middle water locking layer, and the outer water absorbing layers are fixedly connected outside the middle water locking layer; the outer water-absorbing layer is formed by interweaving warp special-twisted yarns and weft special-twisted yarns, and water-absorbing micropores are formed in the outer water-absorbing layer; the middle water locking layer is formed by interweaving warp low-count weak-twist pure cotton yarns and weft low-count weak-twist pure cotton yarns, and accommodating micropores are formed in the middle water locking layer and filled with cotton fibers treated by a water absorption aid. On the basis that the problems of hair slip and short service life of a traditional product are solved, the water absorbing and locking capacity of the fabric is improved, and the hydrophilic effect is good.

The application relates to the field of advanced structural ceramics, and particularly discloses a gel injection molding method for preparing high-performance silicon nitride ceramics and a preparation method thereof. Raw materials include beta-SiN submicron powder 75 parts, YO submicron powder 8 parts, TiC submicron powder 5 parts, AlO superfine powder 5 parts, ZrO submicron powder 2 parts and wollastonite 5 parts in terms of mass ratio, a complex whisker regulator and an entry liquid are used, and ceramics are prepared through gel injection molding, dehydration, degreasing and gas pressure sintering. The grain morphology and interface combination are optimized through the whisker regulator, the slurry dispersion and the green body uniformity are improved through the entry liquid, and the product has a density greater than or equal to 99%, a Vickers hardness greater than or equal to 1700HV and a bending strength greater than or equal to 930MPa through 1700-1850 DEG C. gas pressure sintering, and the product has high density, high hardness, high toughness, wear resistance, corrosion resistance and long service life.

The present application relates to a kind of high-temperature impact wear strengthening layer and its preparation method and application, belong to laser processing material technical field.High-temperature impact wear strengthening layer is prepared using high carbide content alloy powder, the high carbide content alloy powder is in mass percentage, chemical composition is as follows:Al:2.7%~3.0%, C:5.8%~6.3%, Cr:63.5%~64.5%, B:0.02%~0.04%, O≤200ppm, N≤50ppm, H≤5ppm, the balance is Ni.The strengthening layer of the present application, high hardness, high-temperature impact wear resistance is good, can satisfy the demand of the surface performance of heavy-duty diesel engine key component.

The invention provides an electrolyte for preparing a high-elongation lithium battery copper foil, a copper foil and a preparation method of the copper foil, the electrolyte comprises a main electrolyte and additives, the main electrolyte comprises copper sulfate, sulfuric acid and chloride ions, the additives comprise a first additive with the concentration of 5-40 mg / L and a second additive with the concentration of 2-20 mg / L, the concentration of the first additive is 10-100 mg / L, the concentration of the second additive is 10-100 mg / L, the concentration of the third additive is 10-100 mg / L, the first additive is an amino-containing high-molecular compound, the concentration of the second additive is a compound with a sulfonic acid group, and the concentration of the third additive is a mixture of a polyepoxy compound, a modified polysaccharide compound and a polyamine compound. By adopting the additive in the scheme and the specific proportion thereof, the microstructure of the copper foil can be effectively regulated and controlled, the lithium battery copper foil with compact and uniform texture is obtained, and meanwhile, the lithium battery copper foil has high normal-temperature ductility.

A method for preparing a binary formula for Dai pottery clay and its application is disclosed. The method involves taking Dai pottery clay from the Honghe River basin, five-colored clay from Honghe County, and charcoal powder. The Dai pottery clay and five-colored clay are sun-dried and weathered for at least three months. The Dai pottery clay from the Honghe River basin has a SiO2 content of not less than 50%, an Al2O3 content of not less than 15%, an Fe2O3 content of not less than 10%, and a loss on ignition of less than 10%. The five-colored clay from Honghe County has a SiO2 content of 72-82%, an Al2O3 content of 9-12%, and an Fe2O3 content of 3-5%. The method involves soaking the Dai pottery clay and five-colored clay in water until fully saturated, then ball-milling them. The slurry is sieved, and then charcoal powder is added. After stirring evenly, the clay is pressed to drain water and then kneaded to remove air. This invention can improve the throwing and molding performance of Dai pottery clay, increase the sintering temperature and the density and strength of its structure, and reduce the burn-off rate.

The present invention provides a low-sugar dark chocolate ice cream and a preparation method thereof, and belongs to the field of food technology. The low-sugar dark chocolate ice cream of the present invention comprises the following raw materials by weight: 60-90 parts of milk, 2-10 parts of milk powder, 5-10 parts of cream, 10-20 parts of dark chocolate, 10-30 parts of resistant dextrin, 0.1-0.5 parts of spiny bean gum, 0.1-0.5 parts of emulsifier, 5-10 parts of vegetable oil and 1-3 parts of sweetener. The low-sugar dark chocolate ice cream prepared by the present invention has the physical and chemical characteristics of low sugar, delicate taste, storage resistance, etc., has no other raw materials that are unfavorable to the body, is beneficial to the health of the body, and provides a large amount of dietary fiber to the human body, which can effectively regulate the intestinal flora and improve the intestinal function.

The embodiment of the invention provides a high-wear-resistance forged chain for a boiler slag extractor and a friction welding weaving process, a base material is forged after being heated, a forged ring is obtained, and the section of the forged ring is rectangular; cutting the part of the forged ring along the width direction to obtain half rings with the number twice that of the part of the forged ring; the forged rings and the semi-rings are alternately distributed by weaving friction welding equipment, the two semi-rings with opposite openings are subjected to friction welding to form a welding ring, and the forged rings and the welding ring are alternately distributed to form the chain. Compared with traditional direct bending forming of bars, the forged rings have higher material strength and a denser internal organization structure, so that the overall bearing capacity of the chain is improved, and the service life of the chain is prolonged. The sections of the chain rings are rectangular, and the contact positions and the contact parts of the adjacent chain rings are in surface contact, so that the contact area is increased, the contact stress is reduced, the abrasion of a carburized layer can be effectively slowed down, and the service life of the chain is prolonged.

The invention discloses an Al2O3-NiAl double-layer coating and a preparation method thereof, and belongs to the technical field of metal material plating. In order to solve the problem that in the prior art, the service performance of the aluminum alloy surface is limited, the Al2O3-NiAl double-layer coating on the aluminum alloy surface and the preparation method are provided, the Al2O3-NiAl double-layer coating is formed by spraying a NiAl coating on an aluminum alloy matrix, the NiAl coating is obtained by mixing nickel powder and aluminum powder and then conducting spraying reaction, and the coating containing NiAl and Ni3Al compounds is obtained. And then the NiAl coating is subjected to oxidation treatment, so that a compact Al2O3 ceramic layer is formed on the surface. The Al2O3-NiAl double-layer coating is of a compact structure, corrosion medium permeation and crack propagation can be effectively hindered, and good corrosion resistance and wear resistance are shown.

The present invention relates to the field of laser additive manufacturing technology, and in particular to a shape memory alloy powder and a coaxial powder feeding laser additive manufacturing method thereof. The powder comprises the following components by weight: 48 to 51 parts of Ni, 30 to 35 parts of Ti, 15 to 20 parts of Pt and 0.6 to 2.4 parts of TiN. The sample prepared by laser additive manufacturing of the alloy powder provided by the present invention has no cracks and a dense organizational structure.

The invention relates to the technical field of bonding wires for semiconductor packaging, and discloses a bonding copper wire and a preparation method and application thereof. The bonding copper wire comprises the following chemical components in percentage by weight: 42 ppm to 48 ppm of phosphorus, 32 ppm to 38 ppm of silver, 8 ppm to 12 ppm of lanthanum, 8 ppm to 12 ppm of yttrium and the balance of copper. The tensile strength of the bonding copper wire is greater than or equal to 7.5 cN, the elongation is 11.0%-15%, and the reliability is greater than or equal to 300 cycles. 8 ppm to 12 ppm of lanthanum element, 8 ppm to 12 ppm of yttrium element, 32 ppm to 38 ppm of silver element and 42 ppm to 48 ppm of phosphorus element are added into the bonding copper wire, a synergistic effect is achieved among multi-element microalloying, the corrosion-resistant welding effect better than that of a single element can be achieved, and the comprehensive performance of the alloy is improved.

The invention discloses an ultrahigh-power graphite joint preparation method which comprises the following steps: A, raw material treatment: crushing calcined petroleum coke or pitch coke raw materials to obtain raw material powder; the isostatic pressing technology is adopted for preparing the ultrahigh-power graphite joint, the double-cone-shaped joint blank is directly formed, the machining cutting amount is reduced compared with extrusion forming of a cylindrical blank, the effects of improving the machining yield and further improving the yield are achieved, and compared with an existing forming technology, the ultrahigh-power graphite joint has the advantages of being high in mechanical strength and compact in organization structure; compared with the prior art, the breaking strength can be improved by more than 35%, meanwhile, the designed forming die is limited according to the cutting allowance needed by actual machining, the machining cutting amount can be reduced to the minimum extent, and the machining cost is reduced. Compared with the prior art, the method has the effect of improving the processing yield to the greatest extent (the processing yield can be improved by about 30%).