415results about How to "Won't peel off" patented technology

The invention belongs to the field of material surface engineering and more particularly relates to a method for carrying out cladding on a high-hardness wear-resistant anti-corrosion nickel-based alloy material on a metal substrate E in a large area by applying a laser cladding technology, solving the problem of cracks generated in the laser cladding process of the high-hardness wear-resistant nickel-based alloy, in particular the cladding defects, such as cracks with the thickness of more than 1mm, pores and the like during large-area cladding. According to the invention, the high-hardness nickel-based alloy powder material is cladded on the surface of the metal substrate in the large area to form a high-hardness wear-resistant anti-corrosion nickel-based alloy coating by applying the laser cladding technology and adopting a scientific and reasonable process method. According to the method disclosed by the invention, stability and consistency of laser cladding are foundationally ensured, defects, such as cracks, pores, impurities can be prevented from generating, heat affected regions of the substrate are reduced, dilution rate is reduced, the high-wear-resistance anticorrosion nickel-based alloy coating with firm metallurgical bonding and fine and compact grains is obtained and has the hardness reaching 58-63HRC, and the service life of the processed workpiece can be prolonged by more than 1-2 times.

The invention provides a diamond-like thick film. The diamond-like thick film comprises a binding layer, a transition layer and a diamond-like film layer, wherein the transition layer is compounded with the binding layer; the diamond-like film layer is compounded with the transition layer; and the diamond-like film layer is formed by overlapping diamond-like sub-films having different sp3 bond contents. According to the invention, the diamond-like film layer is formed by overlapping the diamond-like sub-films having different sp3 bond contents; additional hetero elements are not introduced; therefore, the difficulty that the mechanical property of the film layer is deteriorated due to doping of the hetero elements is effectively avoided; furthermore, by overlapping the diamond-like sub-films having different sp3 bond contents, the stress between the layers is greatly reduced; the binding force between the layers is higher; and thus, the layers cannot be separated.

The invention discloses a coating for cooling the surface of a light-emitting diode (LED) radiator. The coating is characterized by being prepared from the following components in parts by weight: 6-20 parts of inorganic colloidal particle, 0.5-2 parts of carbon nano-tube, 15-80 parts of electron transition spinel, 0.05-2 parts of rare-earth element oxide, 0.1-0.3 parts of stabilizer, 3-10 parts of epoxy resin, 3-10 parts of methyl methacrylate and 2-5 parts of ethylene glycol. The coating has obvious heat dissipating and cooling effects, is not affected by surrounding medium when taking the cooling effect, can be used in a vacuum environment, also has the advantages of good self-cleaning property, corrosion resistance, waterproofness, fire retardancy, insulativity, and acid and alkali resistance, and convenient construction when taking a radiation cooling effect.

The invention discloses a novel method for modifying graphene with polymer. By introducing polydopamine and combining covalent modification with non-covalent modification, the method increases the stability of the modified product structure under the premise of ensuring the integrity of the graphene structure. Firstly, by utilizing the strong adhesion of dopamine, the dopamine is self-polymerized to form a film on the surface of a graphene sheet, moreover, 2-Bromo-2-methylpropionyl bromide (BiBB) as common initiator for atom transfer radical polymerization (ATRP) is grafted on the dopamine by amidation, at the same time, graphene oxide (GO) is partially reduced by the dopamine (DA), and thereby graphene macroinitiator RGO@PDA-Br is obtained. Polymeric monomer is then added, so that the ATRP of the polymeric monomer is initiated on the surface of the graphene, and thereby a polymer-modified graphene material is obtained. By controlling conditions such as monomer concentration and reaction time, the novel method can obtain modified graphene materials with different densities and chain lengths of polymer grafted on the surfaces, meeting the characteristics of controllable/living ATRP. In addition, the feasibility and universality of the novel method for modifying graphene with polymer put forward by the invention are applicable to various monomers suitable for ATRP.

The invention discloses a production processing method of colored crystal glass, wherein the colored crystal glass is prepared by the steps of cutting, edge processing, high temperature colored crystal printing and low temperature colored crystal printing, a double-layer screen printing manner is utilized in the high temperature colored crystal printing procedure, the mesh number of a second screen layer is more than that of a first screen layer, an included angle alpha of a radial line of the first screen layer and a radial line of the second screen layer is more than 0 degree and less than 900 degrees, a high temperature printing ink layer is fully merged in a glass substrate after the colored crystal glass is dried twice and tempered twice, so that the patterns have strong stereoscopic impression and stereovision, and sufficient abstract feeling, and look noble, elegant and upscale; besides, the printing ink is firmly combined with the glass substrate, so that the printing ink cannot be stripped by a cleaning cloth or other acidic and alkaline substances if being used as a refrigerator door panel. The back surface of the glass is processed by low temperature printing ink printing, thereby the procedures are fewer, the processing technique is simple, and the cost is low.

The invention discloses a grinding roller manufacturing/remanufacturing abrasion-resistant material and a preparation method thereof. A grinding roller is formed by a core roller body, a substrate abrasion-resistant layer, a transition layer and a roller face abrasion-resistant shape layer in a coupling mode. A core material is provided with the highly-abrasion-resistant modified boron-containing high-chromium cast iron substrate abrasion-resistant layer through casting and compounding. The substrate abrasion-resistant layer comprises, by mass, 1.75%-3.0% of C, 12.0%-18.0% of Cr, 0.2%-2.0% of B, 0.4%-0.8% of Mn, 0.4%-1.2% of Si, 0.30%-0.80% of Ni, 0.02%-0.04% of Mg, 0.03%-0.05% of Ce, 0.05%-0.10% of Ti, 0.006%-0.015% of N, 0-0.04% of S, 0-0.04% of P, and the balance Fe. Then surfacing of materials of the roller face abrasion-resistant shape layer is conducted on the surface of the transition layer. The roller face abrasion-resistant shape layer is formed by flux-cored wires through surfacing. The flux-cored wires comprises, by mass, 2.3%-3.5% of C, 14.0%-26.0% of Cr, 1.5%-2.0% of Ni, 0.8%-2.0% of Nb, 1.3%-2.0% of Mo, 1.2%-2.3% of Si, 1.0%-1.7% of Ti, 0.3%-1.0% of V, 0.2%-1.5% of B, 0-<0.007% of S, 0-0. 015% of P, and the balance Fe.

This invention discloses a method for ion implantation of Cu, Ni or Fe as pretreatment process for chemical deposition on ceramic surface. The method comprises: cleaning ceramic surface, placing cleaned in an ion implantation apparatus, vacuumizing, cleaning the workpiece by gas sputtering, performing ion implantation by using Cu, Ni or Fe at an amount of 0.2*10e17-4.2*10e17 ions/cm2 and an energy of 6-30 keV, and placing the implanted ceramic in chemical deposition solution for chemical plating of Cu, Ni or Fe. This invention combines ion implantation and chemical deposition, and utilizes ion implantation to form a layer of metal identical to that to be deposited. Therefore, the formed deposition layer has such advantages as high uniformity, low porosity, good appearance, and high adhesiveness with the matrix. The method has such advantages as simple process, no secondary pollution, no need for implantation of noble metals, and high deposition efficiency.

The invention relates to a self-temperature limiting heat tracing belt with a dual-layer resin conductor and a manufacturing method thereof. The self-temperature limiting heat tracing belt is characterized by comprising a metal conductive electrode, a resin conductor layer, a heating element and an insulation layer. A shielding layer or a sheath can also be arranged outside the insulation layer. In the invention, the formulas of the resin conductor layer and the heating element are improved, and through the implementation of the technical scheme of the invention, and the problems existing in the aspects that the power attenuation of the traditional heat tracing belt is serious, the starting current of the traditional heat tracing belt becomes big, the heat tracing belt is burnt out frequently, the performance is not stable and the like can be well solved. The invention greatly improves the performance of the heat tracing belt, has the advantages of small starting current and high heat tracing belt temperature and is suitable for the industrial application.

The invention discloses an improved solvent cold laid asphalt as well as a preparation process and using method thereof. The improved solvent cold laid asphalt is at a liquid state under normal temperature or low temperature; cold oil and cold materials can be directly blended for construction on the spot without heating, and the construction can be carried out at high/low temperature seasons and rain/snow weather, and a large number of machinery and labor are not required in the construction process, the construction is simple and convenient and the repair effect is good; traffic can be immediately opened after repair without affecting the travel of people; the improved solvent cold laid asphalt is usually used for daily maintenance, such as pot slot repair and emergency repair; meanwhile, the improved solvent cold laid asphalt has the advantages of no deterioration, no layering and the like after being stored for a long time.

The invention discloses paint with strong adhesion for cooling the surface for an LED (light emitting diode) radiator. The paint is characterized by being prepared from the following components in parts by weight: 10-25 parts of inorganic colloidal particles, 1-3 parts of carbon nano-tube, 25-90 parts of electron transited spinel, 0.05-1.5 parts of rare earth oxide, 0.1-0.5 part of a stabilizing agent, 3-15 parts of epoxy resin, 2-10 parts of methyl methacrylate, 10-25 parts of nano- diatomite and 2-10 parts of ethylene glycol. The paint has remarkable heat dissipating and cooling effects, is not influenced by peripheral media, can be used in a vacuum environment, plays a role in radiating and cooling, and has the advantages of good self-cleaning performance, corrosion resistance, water resistance, flame retardance, insulating performance and acid-alkali resistance, and is convenient to construct.

The invention discloses a composite insulator. The composite insulator comprises a core rod, a sheath and a connecting piece, wherein the sheath is coated on the outer side of the core rod; the connecting piece is connected with the core rod and the sheath; the sheath is made of high-temperature vulcanized silicon rubber; the connecting piece comprises a body and a bump which is arranged by surrounding the outer wall of the body; the body comprises at least one wedged groove which is circularly arranged on the outer wall of the body; and the sheath is coated on the outer walls of the bump andthe wedged groove. In the composite insulator, room-temperature vulcanized silicon rubber is not used as a sealant, and the high-temperature vulcanized silicon rubber is adopted. Since the high-temperature vulcanized silicon rubber is aging-resistant, the sealing effect of the composite insulator is difficult to damage by erosion of an external environment when the composite insulator is exposed outdoors and even in certain severe environments. Meanwhile, the sheath cannot be stripped off from encapsulated rubber on a hardware tool and the core rod by an external force factor produced during transportation, mounting and maintenance by using the buckling effect of the bump and the wedged groove on the sheath, so that the sealing failure cannot be caused.

The purpose of the present invention is to enable highly-reliable bonding of bonding surfaces to be carried out such that the occurrence of uneven drying at the center and ends of the bonding surfaces, which occurs in-plane on a bonding layer in a desolvation process of a preliminary drying step, is reduced, thereby ensuring that the bonding surfaces do not detach even if repeatedly exposed to heat shock after bonding. This bonding material, which solves the aforementioned problem, is characterized by being covered by organic matter with a carbon number of six or less, comprising main silver particles, and covered by organic matter with a carbon number of six or less, comprising nano silver particles having an average primary particle size of 10 to 30 nm, and sub silver particles. The bonding material is further characterized by containing nano silver particles with an average primary diameter of 100 to 200 nm, two types of solvents with different boiling points, and a dispersant.

The invention relates to hot dip coating alloy specially used for surface coatings of titanium alloy parts. The hot dip coating alloy consists of aluminum, silicon, zinc, rare earth elements, magnesium, ferrum and reinforcing agent of particles of nano oxides, and based on the total weight of the alloy, the alloy comprises 8 to 24 percent of silicon, 1.2 to 3.1 percent of zinc, 0.02 to 0.5 percent of rare earth elements, 0.5 to 3.2 percent of magnesium, 0.05 to 1 percent of ferrum, 1 to 2 percent of reinforcing agent of particles of nano oxides, and the balance of aluminum and inevitable impurities, wherein the reinforcing agent of the particles of the nano oxides may be one or two of TiO2 and CeO2. The hot dip coating alloy produced by the method can form a coating with good corrosion resistance and wearing resistance and good metallurgical bonding property with a matrix on the surface of the titanium alloy.

The invention discloses colorful heat insulating and waterproof building paint, which comprises the components in parts by weight as follows: 20-30 parts of styrene-acrylic emulsion, 20-30 parts of natural rubber resin, 3-10 parts of paint dispersant, 10-15 parts of ethylene glycol, 0.5-1 parts of defoamer, 10-20 parts of pigment, 30-50 parts of low heat conductive coefficient filler, 4-8 parts of white carbon black and 10-15 parts of water. The colorful heat insulating and waterproof building paint is abundant in color, and can well meet the requirement of colorful outer wall paint of buildings with excellent heat insulating and waterproof effects which are same as those of white paint. The paint contains neither heavy metals nor formaldehyde and is relatively beneficial to health of human bodies. The paint is applicable for concrete pavements, asphalt pavements, plastic pavements, pavements of glass fiber reinforced plastics, and metal pavements, and is convenient to construct in ways of spray coating, brush coating and rolling coating.

The invention discloses aqueous composite coating for plastic. The aqueous composite coating is prepared from the following raw materials in parts by weight: 20 to 40 parts of aqueous chlorinated polyolefin resin, 20 to 40 parts of aqueous acrylic resin, 15 to 30 parts of aqueous polyurethane dispersoid, 2 to 5 parts of silane coupling agent, 20 to 40 parts of nano calcium carbonate, 5 to 10 parts of ultrafine talcum powder, 10 to 20 parts of nano silicon dioxide, 5 to 15 parts of aluminum silicate, 1 to 6 parts of barium sulfate, 1 to 3 parts of titanium dioxide, 1 to 4 parts of zinc phosphate, 1 to 4 parts of adhering force accelerant, 0.5 to 2.5 parts of dimethylethanolamine, 1 to 2 parts of flatting agent, 1 to 2 parts of antibacterial agent, 1 to 2 parts of de-foaming agent, 1 to 2 parts of mildew preventive and 1 to 2 parts of wetting agent. The aqueous composite coating has great hardness and strong adhering force.

The invention provides a cleaning method for surface of anode oxidized component. The core of the method is as follows that organic solution is firstly used for cleaning of the surface the component; then alkaline solution and acid solution is used for cleaning of the surface of the component in turn but not in sequence; at last, ultrasonic wave is adopted to clean the component. Removing of settlings on the surface of the component can be realized. The method is an effective and simple method without destructiveness for cleaning of the anode oxidized surface and mainly comprises that organic solution, alkaline solution, diluted acid solution and ultrasonic cleaning is used for removing of anode oxidation and treatment of contamination on the surface. The method cannot lead to flaking of anode oxidation and newly anode oxidation treatment of the component even if micro-damage is produced.

The invention relates to a boiler chimney and the method for forming inner-wall protective element. The inventive boiler comprises an outer frame and a liner. Wherein, said liner has a inner-wall protective, which is formed by a polymer silicate solidify layer, a epoxy paint solidify layer while said two layers can be resistant to acid and high temperature, and a strength layer; the polymer silicate solidify layer is fixed on the inner surface of liner; the epoxy paint solidify layer is fixed on the polymer silicate solidify layer; the strength layer is glass fiber grid cloth, which is extended and embedded into the polymer silicate solidify layer, or individually embedded into the polymer silicate solidify layer and the epoxy paint solidify layer to form the inner-wall protective element. Said invention has lower cost, the high temperature resistance, antisepsis property and the anti-leakage property.