30results about How to "Uniform and firm attachment" patented technology

The invention particularly relates to a stainless steel surface nano-pore array film and a preparation method thereof. The technical scheme is that: stainless steel treated by surface pretreatment is used as an anode and is placed in a phosphate buffer solution to perform electrochemical anodic oxidation treatment; the time for the electrochemical anodic oxidation treatment is 0.1-4 h; a nano-pore array film is obtained on the treated stainless steel surface; the voltage for the electrochemical anodic oxidation is 10-80 V, and the temperature for the electrochemical anodic oxidation is -5 to 40 DEG C. The preparation method of the invention is simple, effective, environment-friendly, and low in cost; the stainless steel surface nano-pore array prepared by the method has a structured and ordered structure, a high density, a controllable pore diameter and pore depth, and no other impurity elements intervened, is firmly combined with the substrate, and has strong corrosion resistance andhigh hardness.

The invention particularly relates to antibacterial stainless steel and a preparing method thereof. According to the technical scheme of the antibacterial stainless steel and the preparing method thereof, stainless steel obtained after surface pretreatment is put into a dopamine buffer solution to be deposited for 0.1 h to 72 h under the condition with the temperature ranging from -5 DEG C to 40 DEG C; then the obtained stainless steel is put into a solution containing titanium ions to be deposited for 0.1 h to 6 h; and finally the obtained stainless steel is put into a solution containing silver ions to be deposited for 0.1 h to 6 h, and therefore the antibacterial stainless steel is obtained. The concentration of the dopamine buffer solution ranges from 0.01 mol / L to 1 mol / L, the concentration of the solution containing the titanium ions ranges from 0.001 mol / L to 1 mol / L, and the concentration of the solution containing the silver ions ranges from 0.001 mol / L to 1 mol / L. By means of the antibacterial stainless steel and the preparing method thereof, the technology is simple, environment friendliness is achieved, and the cost is low; the surface antibacterial nanometer film layer structure of the antibacterial stainless steel prepared through the method is well-defined and orderly, is firmly combined with a base material, is high in corrosion resistance and hardness and has good antibacterial performance both under the illumination condition and the non-illumination condition.

The invention discloses a preparation method for washable and antibacterial down feathers. The method comprises the following steps of washing, dewatering and drying raw feathers, and removing residual dust and sand to obtain pretreated down feathers; adding a detergent into the pretreated down feathers for fine washing, then rinsing the pretreated down feathers with clear water, performing dewatering, adding a humic acid compound and chitosan to be uniformly mixed, and performing dipping, filtering, washing, drying and cooling to obtain the washable and antibacterial down feathers. The humicacid compound is prepared by adopting the following process of mixing humic acid and a sodium hydroxide solution, performing heating and stirring, adding disproportionated rosin and carbon nanotubes,performing shaking, adding soybean protein, adjusting the pH value of a system to be 8.8-9.4, adding monoepoxy-terminated polysiloxane to be continuously stirred, then carrying out microwave processing, performing distilling to remove the water, and performing freeze drying to obtain the humic acid compound. The obtained washable and antibacterial down feathers are good in fiber fluffiness and excellent in antibacterial function; and after the washable and antibacterial down feathers are washed with the water for multiple times, the antibacterial performance is not reduced, the original elasticity and compression performance can be restored, and the fluffiness of the down feathers is guaranteed.

The invention relates to a colored stainless steel based on ion implantation and a preparation method thereof. The technical scheme is as follows: placing a stainless steel to be colored in a vacuum chamber of an ion implantation apparatus, vacuumizing to 0.1-1*10<-5>Pa, and implanting ions on the surface of the stainless steel to obtain the colored stainless steel, wherein the accelerating voltage for ion implantation is 10-100kV, and the ion implantation amount is 1*10<17>-1*10<19> ions / cm<2>; or placing a stainless steel to be colored in a vacuum chamber of an ion implantation apparatus, vacuumizing to 0.1-1*10<-5>Pa, and implanting ions on the surface of the stainless steel, wherein the accelerating voltage for ion implantation is 10-100kV, and the ion implantation amount is 5*10<15>-5*10<19> ions / cm<2>; and taking out, carrying out heat treatment, and cooling to room temperature in the furnace to obtain the colored stainless steel. The invention has the advantages of simple process and clean environment, and the obtained colored stainless steel has the characteristics of multiple color varieties, high reproducibility, uniform color, beautiful appearance, high durability and no separation. Compared with the stainless steel prior to preparation, the surface hardness and the corrosion resistance are obviously improved.

The invention discloses a surface treatment method for a nickel-chromium alloy wire. The surface treatment method comprises the steps of obtaining the nickel-chromium alloy wire, and pretreating the nickel-chromium alloy wire with an HNO3 solution to obtain a pretreated nickel-chromium alloy wire; and annealing the pretreated nickel-chromium alloy wire in an annealing furnace to obtain the nickel-chromium alloy wire with a uniform, consistent emerald green oxide film on the surface, specifically, an air agitator is arranged in the annealing furnace, an air vent is formed in a furnace cover ofthe annealing furnace, the annealing temperature is 890-930 DEG C, and the annealing time is 2.5-3.5 hours. According to the surface treatment method, the nickel-chromium alloy wire with the uniform,consistent emerald green oxide film on the surface can be obtained, the oxidation color of the nickel-chromium alloy wire is uniform and stable, the color is emerald green, the requirements of customers are met to the greatest extent, and the surface treatment method is very helpful for improving the quality of the product.

The invention discloses a drum-type receiving lapper for melt-blown non-woven fabric production, and relates to the technical field of non-woven fabric production. The drum-type receiving lapper for melt-blown non-woven fabric production comprises a base; a left supporting plate, a right supporting plate and a mounting plate are fixedly mounted at the top of the base; the mounting plate is located between the left supporting plate and the right supporting plate; a receiving mechanism is arranged above the base; a limiting mechanism is arranged at the top of the right supporting plate; a negative pressure mechanism is arranged on one side of the left supporting plate; and a collecting mechanism is arranged on the mounting plate. According to the drum-type receiving lapper for melt-blown non-woven fabric production, a receiving drum adopts a hinged structural design, so that an overturning function is realized on the premise of not influencing transmission, an operator can conveniently sleeve a non-woven fabric winding drum on the receiving drum before web forming, the non-woven fabric does not need to be manually wound on the receiving drum, the labor burden of the operator is relieved, the overall production and processing time is shortened, and the production and processing efficiency of the melt-blown non-woven fabric is improved.

The invention particularly relates to a stainless steel surface nano-pore array film and a preparation method thereof. The technical scheme is that: stainless steel treated by surface pretreatment is used as an anode and is placed in a phosphate buffer solution to perform electrochemical anodic oxidation treatment; the time for the electrochemical anodic oxidation treatment is 0.1-4 h; a nano-pore array film is obtained on the treated stainless steel surface; the voltage for the electrochemical anodic oxidation is 10-80 V, and the temperature for the electrochemical anodic oxidation is -5 to 40 DEG C. The preparation method of the invention is simple, effective, environment-friendly, and low in cost; the stainless steel surface nano-pore array prepared by the method has a structured and ordered structure, a high density, a controllable pore diameter and pore depth, and no other impurity elements intervened, is firmly combined with the substrate, and has strong corrosion resistance andhigh hardness.

A preparation technology of a photochromic PET film capable of being used durably comprises the steps that a glycerol solution with the concentration of 8% is added into composite sol with the molecular ratio of WO3 to TiO2 to ZnO being 22: 1: 1-15: 1: 1, and a photochromic solution is formed; a PET base film is conveyed into a soaking kettle, after vertical soaking, oblique soaking, liquid control and drying are conducted, an upper guide roller guides an upper covering film, a lower guide roller guides the PET base film and a lower covering film, and the upper covering film, the upper photochromic layer, the PET base film, the lower photochromic layer and the lower covering film are laminated to finally form a formed film with the structure of the upper covering film, the upper photochromic layer, the PET base film, the lower photochromic layer and the lower covering film. Therefore, the formed film has uniform and excellent optical performance, meanwhile, stripping between the films is avoided, and the use durability is better.

The invention discloses a flame-retardant high-temperature-resistant polyimide composite board and a preparation method thereof. The preparation method comprises the steps of soaking a polyimide board into coating slurry, taking out the polyimide board after 3-5 minutes, heating at 90 DEG C for 5-8 minutes, soaking the polyimide board into the coating slurry again, taking out the polyimide board after 8-12 minutes, heating at 110 DEG C for 10-15 minutes, and finally carrying out vacuum treatment at 155 DEG C for 40-55 minutes, so as to obtain the flame-retardant high-temperature-resistant polyimide composite board, wherein the thickness of the polyimide board is 92%-95% of that of the flame-retardant high-temperature-resistant polyimide composite board. Tests prove that the glass-transition temperature of the flame-retardant high-temperature-resistant polyimide composite board is 302 DEG C, the initial thermal weight loss temperature is 406 DEG C, the oxygen index is 45, the residual rate at 700 DEG C is 37%, the bending strength is 62 MPa, a fishing edge is not adhered with a cutter, and the cutter does not need to be exchanged after 500 meters of the board is cut.

The invention discloses a method for preparing a CdSe film by adopting a cold-heat alternating chemical bath method. The method comprises the following steps of: (1) placing 20 mL of Cd(NO3) with the concentration of 0.03-0.10 mol / L into an ice-water bath as a cold solution A; (2) mixing 10 mL of KBH4 with the concentration of 0.42-0.6 mol / L and 10 mL of Na2SeO3 with the concentration of 0.06 mol / L, heating to 70-80 DEG C, reacting a solution to a red-brown color, and fast turning into an achromatic color within 4-8 seconds as a heat solution B; (3) vertically immersing a clean ITO (Indium Tin Oxid) conductive glass into the cold solution A obtained from the step (1), taking out after 5-60 seconds, fast immersing into the heat solution B obtained from the step (2), and also sustaining for 5-60 seconds; (4) repeating the step (3) for 4-20 times to generate the CdSe film in the red brown color on an ITO surface. The method disclosed by the invention is short in preparation time, can be used for controlling the thickness of the CdSe film by changing the cycle times of a cold-heat alternating chemical bath without using a toxic organic solvent and has the characteristic of firmly absorbing the CdSe film on ITO.

The invention particularly relates to antibacterial stainless steel and a preparing method thereof. According to the technical scheme of the antibacterial stainless steel and the preparing method thereof, stainless steel obtained after surface pretreatment is put into a dopamine buffer solution to be deposited for 0.1 h to 72 h under the condition with the temperature ranging from -5 DEG C to 40 DEG C; then the obtained stainless steel is put into a solution containing titanium ions to be deposited for 0.1 h to 6 h; and finally the obtained stainless steel is put into a solution containing silver ions to be deposited for 0.1 h to 6 h, and therefore the antibacterial stainless steel is obtained. The concentration of the dopamine buffer solution ranges from 0.01 mol / L to 1 mol / L, the concentration of the solution containing the titanium ions ranges from 0.001 mol / L to 1 mol / L, and the concentration of the solution containing the silver ions ranges from 0.001 mol / L to 1 mol / L. By means of the antibacterial stainless steel and the preparing method thereof, the technology is simple, environment friendliness is achieved, and the cost is low; the surface antibacterial nanometer film layer structure of the antibacterial stainless steel prepared through the method is well-defined and orderly, is firmly combined with a base material, is high in corrosion resistance and hardness and has good antibacterial performance both under the illumination condition and the non-illumination condition.

The invention relates to the technical field of silk stockings, in particular to moisturizing silk stockings and a production process thereof, the moisturizing silk stockings are formed by weaving double-layer wrapping silk, and the wrapping silk comprises spandex and chinlon. And the spandex is anti-raveling spandex. The chinlon yarn contains gold sodium hyaluronate particles, and the gold sodium hyaluronate particles are the combination of sodium hyaluronate and gold spheres. The production process comprises the steps of manufacturing the wrapping silk, stabilizing the wrapping silk, weaving a semi-finished product of the silk stocking, sewing a white blank of the silk stocking, and dyeing and shaping the white blank of the silk stocking. Compared with the prior art, the silk stockings have the advantages that the silk stockings are sewn through the wrapping silk made of the chinlon containing the gold sodium hyaluronate particles, synthesis of hyaluronic acid in a human body is promoted, the silk stockings have the moisturizing and water supplementing functions, leg skin is prevented from being dry, and the health care effect is good. The content of gold sodium hyaluronate particles in the silk stockings washed with water still has a good moisturizing effect.

A kind of photochromic PET film preparation process that can be durable, including WO 3 , TiO 2 The 8% glycerol solution was added to the composite sol with a molecular ratio of 22:1:1-15:1:1 to ZnO to form a photochromic solution; the PET base film was transferred to the soaking kettle, and after vertical soaking, After oblique soaking, liquid control, and drying, the upper guide roller guides the upper film, and the lower guide roller guides the PET base film and the lower film. The final structure of the three lamination is the upper film-upper photochromic layer-PET Film formation of the base film-under the photochromic layer-under the cover film. The film formed in this way has uniform and excellent optical properties, while avoiding inter-film peeling, and has better durability in use.

The invention relates to the technical field of painting, in particular to a surface painting production line for mechanical metal parts, which makes the paint evenly and stably adhere to the surface of the parts, improves the quality of painting and improves practicability; a groove, a first moving ring and a first sliding block, the right part of the first sliding rail is provided with a curved arc, the electrophoresis groove is installed under the curved arc, and the first moving ring is slidably connected to the first sliding rail through two sets of first sliding blocks; It also includes a second sliding rail, a second moving ring, a second sliding block, a gear, a bearing, a torsion spring and a heating tube, the second sliding rail is installed obliquely above the first sliding rail, and the second moving ring passes through two sets of second sliding The block is slidably connected with the second sliding rail, the gear is rotatably connected with the bottom of the second moving ring through two sets of bearings, the inner ring of the torsion spring is connected with the outer ring of the second moving ring, and two sets of clamping grooves are arranged in the middle of the gear.

The invention provides a method for producing a car mold through a lost foam casting process, and particularly relates to the technical field of car mold manufacturing. The lost foam casting method isadopted for preparing the car mold, after a foam model is coated with a coating, shock chilling drying is carried out, the coating is evenly and stably attached to the model, through a turnover sandadding vibration compaction method of a sand box, quartz sand is filled fully, and is not prone to collapse and burning, the method is simple and easy to operate, the parameters are controllable, andthe method is suitable for large-scale production. The prepared car mold has two types, one type is composed of an upper mold and a lower mold, the other type is composed of a female mold, a male moldand a blank holder, the hardness reaches above 310 HB, the tensile strength reaches above 370 MPa, and the two types both have the higher wear-resistance and anti-deforming properties.

The invention discloses a method for surface treatment of nickel-chromium alloy wire. The method comprises: obtaining nickel-chromium alloy wire, and using HNO 3 solution pretreatment to obtain pretreated nickel-chromium alloy wire; anneal the pretreated nickel-chromium alloy wire in an annealing furnace to obtain a nickel-chromium alloy wire with a uniform emerald green oxide film on the surface, wherein the annealed An air stirrer is provided in the furnace, a vent is provided on the furnace cover of the annealing furnace, the annealing temperature is 890-930° C., and the annealing time is 2.5-3.5 hours. The invention can obtain the nickel-chromium alloy wire with a uniform emerald green oxide film on the surface, the oxidation color of the nickel-chromium alloy wire is evenly and stably attached, and the color is emerald green, which satisfies the needs of customers to the greatest extent and greatly improves the quality of products. help.

A decorative golden foil material for signboard, visiting card, card, album, wall painting, etc is composed of a substrate, a plated aluminium layer, a pattern layer on said plated aluminium layer, a coated color layer prepared from color liquid and adhesive, and a surfacial decorative layer.

The invention discloses a preparation method of silane-modified graphene, a sheet metal part, an air conditioner outdoor unit, and an air conditioner, wherein the preparation method of the silane-modified graphene comprises the following steps: adding graphene oxide and Solvent; stir at room temperature for 12h-36h, ultrasonically oscillate for 30min-60min; add silane coupling agent to the reactor; heat up to 50°C-200°C, stir for 12h-36h, until the mixture gradually turns from golden brown to black Brown, no reaction. The silane-modified graphene prepared by the invention can effectively improve the anti-corrosion performance of sheet metal parts in heavy corrosion environments.

The invention relates to an agricultural non-point source restoration system based on a cement blanket. The system comprises degrading bacteria and cloth, wherein the cloth is formed by interweaving aplurality of strands of warp yarns and a plurality of strands of weft yarns; cement powder is filled in a space defined by the interwoven warp yarns and weft yarns; a layer of degrading bacteria is coated onto the inner side of the cloth; the degrading bacteria can perform agricultural non-point source restoration; through the water spreading onto the surface of the top of the cloth, cement powder in the cloth can be solidified through hydration, so that the cloth is fixed to form an arc-shaped upper cover; a layer of paste is coated between the degrading bacteria and the cloth; the partiallyhydrated cement slurry is prevented from dripping onto the surface of the agricultural non-point source through the paste; the environmental-friendly function is realized; the degrading bacteria areslowly released to flow into the soil for agricultural non-point source restoration; the restoration capability of the degrading bacteria is improved.

The invention relates to a preparation method of a zinc oxide nano-rod array on a stainless steel surface. The preparation method comprises orderly carrying out ultrasonic cleaning on stainless steel through anhydrous ethanol and distilled water, carrying out blow-drying, immersing the stainless steel in a mixed solution and carrying out irradiation on the stainless steel through a microwave oven 1-5 times to obtain the zinc oxide nano-rod array on the stainless steel surface, wherein in each irradiation process, irradiation time is in a range of 0.5-10min and irradiation interval time is in a range of 5-10s. The mixed solution comprises a zinc ion solution, an ammonia ion solution and a graphene oxide solution, the zinc ion solution has a concentration of 0.001-0.1mol / L, the ammonia ion solution has a concentration of 0.001-0.1mol / L and the graphene oxide solution has a concentration of 0.01-2g / L. The preparation method has simple processes, is fast and environmentally friendly and has a low cost. The zinc oxide nano-rod array on the stainless steel surface has excellent photocatalytic and photoelectrochemical performances, nanostructured morphology, a controllable microstructure, firm combination with a base, good corrosion resistance and high hardness.