CN112177480A - Corrosion-resistant aluminum alloy door and window and preparation method thereof - Google Patents
Corrosion-resistant aluminum alloy door and window and preparation method thereof Download PDFInfo
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- CN112177480A CN112177480A CN201910583546.7A CN201910583546A CN112177480A CN 112177480 A CN112177480 A CN 112177480A CN 201910583546 A CN201910583546 A CN 201910583546A CN 112177480 A CN112177480 A CN 112177480A
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B1/00—Border constructions of openings in walls, floors, or ceilings; Frames to be rigidly mounted in such openings
- E06B1/04—Frames for doors, windows, or the like to be fixed in openings
- E06B1/12—Metal frames
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
- B22F3/04—Compacting only by applying fluid pressure, e.g. by cold isostatic pressing [CIP]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D161/00—Coating compositions based on condensation polymers of aldehydes or ketones; Coating compositions based on derivatives of such polymers
- C09D161/04—Condensation polymers of aldehydes or ketones with phenols only
- C09D161/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
- C09D161/14—Modified phenol-aldehyde condensates
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/003—Alloys based on aluminium containing at least 2.6% of one or more of the elements: tin, lead, antimony, bismuth, cadmium, and titanium
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B1/00—Border constructions of openings in walls, floors, or ceilings; Frames to be rigidly mounted in such openings
- E06B1/04—Frames for doors, windows, or the like to be fixed in openings
- E06B1/34—Coverings, e.g. protecting against weather, for decorative purposes
-
- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/04—Wing frames not characterised by the manner of movement
- E06B3/06—Single frames
- E06B3/08—Constructions depending on the use of specified materials
- E06B3/12—Constructions depending on the use of specified materials of metal
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- E—FIXED CONSTRUCTIONS
- E06—DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL; LADDERS
- E06B—FIXED OR MOVABLE CLOSURES FOR OPENINGS IN BUILDINGS, VEHICLES, FENCES OR LIKE ENCLOSURES IN GENERAL, e.g. DOORS, WINDOWS, BLINDS, GATES
- E06B3/00—Window sashes, door leaves, or like elements for closing wall or like openings; Layout of fixed or moving closures, e.g. windows in wall or like openings; Features of rigidly-mounted outer frames relating to the mounting of wing frames
- E06B3/30—Coverings, e.g. protecting against weather, for decorative purposes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
- B22F2003/241—Chemical after-treatment on the surface
- B22F2003/242—Coating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
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Abstract
The invention discloses a corrosion-resistant aluminum alloy door and window and a preparation method thereof, wherein the corrosion-resistant aluminum alloy door and window comprises an aluminum alloy door and window body and a corrosion-resistant coating, and the aluminum alloy body is composed of the following raw materials in percentage by mass: 100-115 parts of aluminum powder, 5-8 parts of rare earth elements, 3-5 parts of titanium powder, 2-4 parts of strontium powder and 1-3 parts of cobalt powder; the corrosion-resistant coating comprises the following raw materials in percentage by mass: 30-35 parts of modified phenolic resin, 20-25 parts of epoxy resin, 8-10 parts of zinc oxide, 10-15 parts of graphite and 15-18 parts of curing agent; according to the invention, the high temperature resistance and corrosion resistance of the aluminum alloy door and window body can be improved through the titanium powder, the strontium powder and the cobalt powder, the alloy structure of the aluminum alloy door and window body can be improved through the rare earth elements, the resistance of the aluminum alloy door and window body in a high-temperature and high-corrosion environment can be improved, and the corrosion resistance of the aluminum alloy door and window body can be improved through the corrosion-resistant coating on the surface of the aluminum alloy door and window body.
Description
Technical Field
The invention relates to the field of manufacturing of aluminum alloy doors and windows, in particular to a corrosion-resistant aluminum alloy door and window and a preparation method thereof.
Background
An aluminum alloy door and window is made of aluminum alloy extruded sections as frames, stiles and sash materials, is called as an aluminum alloy door and window for short, and comprises a door and window which is made of aluminum alloy as a stress rod piece base material and is compounded with wood and plastic, the aluminum alloy has the characteristics of small density, high specific strength and specific rigidity, excellent castability, good processing performance, good damping and shock absorption performance and the like, and is very suitable for being used as a door and window material, but the aluminum alloy standard electrode has lower potential and active chemical property, is very easy to be oxidized by air at normal temperature to generate a thin oxidation film which is porous, loose and poor in corrosion resistance, so that an aluminum alloy workpiece needs to adopt some effective surface treatment methods before use, particularly when the aluminum alloy door and window is used in poor environments such as chemical plants, smelting plants and the like, the surface of the aluminum alloy door and window is extremely easy to corrode and damage, so that the service life of the aluminum alloy door and window is shortened.
Disclosure of Invention
In order to solve the problems, the invention provides a corrosion-resistant aluminum alloy door and window and a preparation method thereof, wherein titanium powder, strontium powder and cobalt powder are added into an aluminum alloy door and window body, so that the high-temperature resistance and corrosion resistance of the aluminum alloy door and window body can be improved, rare earth elements are added into the aluminum alloy door and window body, so that the alloy structure of the aluminum alloy door and window body can be improved, the tolerance performance of the aluminum alloy door and window body in a high-temperature and high-corrosion environment can be improved, the corrosion resistance of the aluminum alloy door and window body can be improved by coating a plurality of layers of corrosion-resistant compositions on the surface of the aluminum alloy door and window body, and the higher service life of the aluminum alloy door and window body can be still ensured when the aluminum alloy door and window body.
The invention provides a corrosion-resistant aluminum alloy door and window, which comprises an aluminum alloy door and window body and a corrosion-resistant coating, wherein the corrosion-resistant coating is coated on the surface of the aluminum alloy door and window body, and the aluminum alloy door and window body is composed of the following raw materials in percentage by mass: 100-115 parts of aluminum powder, 5-8 parts of rare earth element, 15-20 parts of tin powder, 10-12 parts of copper powder, 5-8 parts of nickel powder, 6-8 parts of magnesium powder, 10-12 parts of silicon powder, 5-7 parts of zinc powder, 3-5 parts of titanium powder, 2-4 parts of strontium powder and 1-3 parts of cobalt powder;
the corrosion-resistant coating is composed of the following raw materials in percentage by mass: 30-35 parts of modified phenolic resin, 20-25 parts of epoxy resin, 1-3 parts of ammonium polyphosphate, 8-10 parts of titanium dioxide, 3-4 parts of carbon black, 2-4 parts of modified glass beads, 5-7 parts of silane coupling agent, 2-4 parts of barium sulfate powder, 3-4 parts of carboxymethyl cellulose, 8-10 parts of zinc oxide, 3-5 parts of chromium oxide, 4-7 parts of chromium chloride, 10-15 parts of graphite, 15-18 parts of curing agent, 5-7 parts of ferrous nitrate and 5-7 parts of silicon nitride.
The preparation method of the corrosion-resistant aluminum alloy door and window comprises the following steps:
the method comprises the following steps: preparing an aluminum alloy door and window body, respectively carrying out ball milling crushing on aluminum powder, tin powder, copper powder, nickel powder, magnesium powder, silicon powder, zinc powder, titanium powder, strontium powder and cobalt powder, then mixing and stirring the ball milled and crushed aluminum powder, tin powder, copper powder, nickel powder, magnesium powder, silicon powder, zinc powder, titanium powder, strontium powder and cobalt powder, adding rare earth elements for ultrasonic dispersion to obtain a mixture, and then carrying out static pressure forming on the mixture in a forming die to obtain an aluminum alloy door and window green body;
step two: carrying out hot press molding on the aluminum alloy door and window green body in a nitrogen environment to obtain an aluminum alloy door and window body;
step three: respectively grinding ammonium polyphosphate, carbon black, zinc oxide, barium sulfate powder, ferrous nitrate and silicon nitride at low temperature to prepare nano-scale powder for later use;
step four: oxidizing graphite by nitric acid and potassium permanganate to obtain graphite oxide, washing with water, and drying at low temperature to obtain graphite powder;
step five: adding the modified phenolic resin and the epoxy resin into a stirring kettle, mixing and stirring for 40-50 minutes, and controlling the stirring speed to be 600-800 revolutions per minute;
step six: adding the amine polyphosphate, the carbon black, the zinc oxide, the barium sulfate powder, the ferrous nitrate and the silicon nitride nanoscale powder into a stirring kettle, mixing and stirring for 20-30 minutes, and then adding the titanium dioxide, the silane coupling agent, the carboxymethyl cellulose, the chromium oxide, the chromium chloride and the curing agent into the stirring kettle, mixing and stirring for 30-40 minutes;
step seven: adding the graphite powder prepared in the fourth step and the modified glass beads into a stirring kettle, and stirring at a high speed of 800-1000 rpm for 12-15 minutes to prepare the corrosion-resistant composition;
step eight: and D, performing fine polishing treatment on the surface of the aluminum alloy door and window body obtained in the step II by adopting 800-1000-mesh abrasive paper, uniformly coating the corrosion-resistant composition prepared in the step seven on the surface of the aluminum alloy door and window body, wherein the number of the coating layers of the corrosion-resistant composition is 2-3, standing for 2-3 hours, and drying at constant temperature for 30-40 minutes to prepare the corrosion-resistant aluminum alloy door and window.
The further improvement lies in that: and C, when the aluminum powder, the tin powder, the copper powder, the nickel powder, the magnesium powder, the silicon powder, the zinc powder, the titanium powder, the strontium powder and the cobalt powder which are subjected to ball milling and crushing in the step I are mixed and stirred, the mixing and stirring speed is controlled to be 500-600 revolutions per minute, and the mixing and stirring time is controlled to be 30-40 minutes.
The further improvement lies in that: in the first step, the ultrasonic dispersion time is controlled to be 12-15 minutes, and the ultrasonic dispersion temperature is controlled to be 30-35 ℃.
The further improvement lies in that: the hot-press molding in the second step comprises the following specific processes: preheating the aluminum alloy door and window green body for 1-1.5 hours in a nitrogen environment, controlling the preheating temperature to be 350-400 ℃, adjusting the temperature to 520-530 ℃, and then performing hot press forming to obtain the aluminum alloy door and window body.
The further improvement lies in that: and in the third step, the particle size of the nano-grade powder prepared from the ammonium polyphosphate, the carbon black, the zinc oxide, the barium sulfate powder, the ferrous nitrate and the silicon nitride is controlled to be 50-60 nanometers.
The further improvement lies in that: and in the fourth step, the temperature is controlled to be 0-3 ℃ during low-temperature drying treatment, and the low-temperature drying time is 1.5-2 hours.
The further improvement lies in that: and in the sixth step, the mixing and stirring speed is controlled to be 500-600 revolutions per minute.
The further improvement lies in that: and step eight, when the corrosion-resistant composition is uniformly coated on the surface of the aluminum alloy door and window body, standing and drying for 1.5-2 hours for each coated layer, standing and drying for 2-3 hours after the last layer of the corrosion-resistant composition is coated, and controlling the constant-temperature drying temperature to be 35-38 ℃ during constant-temperature drying.
The invention has the beneficial effects that: by adding titanium powder, strontium powder and cobalt powder into the aluminum alloy door and window body, the high temperature resistance and corrosion resistance of the aluminum alloy door and window body can be improved, the aluminum alloy door and window body can have high tensile strength and yield strength, the elongation and extrusion speed of the aluminum alloy door and window body are improved, the plasticity is enhanced, the strength and the plasticity of the aluminum alloy door and window body can be improved by adding rare earth elements into the aluminum alloy door and window body, the rare earth elements can improve the alloy structure of the aluminum alloy door and window body, the tolerance performance of the aluminum alloy door and window body in a high-temperature and high-corrosivity environment can be improved, the corrosion resistance of the aluminum alloy door and window body can be improved by coating a plurality of layers of corrosion-resistant compositions on the surface of the aluminum alloy door and window body to form the corrosion-resistant coating, the aluminum alloy door and window body can still ensure the specific longer service life when being used in corrosive environments of chemical plants, smelting plants and the like.
Detailed Description
In order to enhance the understanding of the present invention, the present invention will be further described with reference to the following examples, which are only illustrative and not intended to limit the scope of the present invention.
Example one
The utility model provides a corrosion-resistant al-alloy door & window, includes al-alloy door & window body and corrosion-resistant coating, al-alloy door & window body surface coating has corrosion-resistant coating, al-alloy body comprises the raw materials of following mass ratio composition: 100 parts of aluminum powder, 5 parts of rare earth elements, 15 parts of tin powder, 10 parts of copper powder, 5 parts of nickel powder, 6 parts of magnesium powder, 10 parts of silicon powder, 5 parts of zinc powder, 3 parts of titanium powder, 2 parts of strontium powder and 1 part of cobalt powder;
the corrosion-resistant coating is composed of the following raw materials in percentage by mass: 30 parts of modified phenolic resin, 20 parts of epoxy resin, 1 part of ammonium polyphosphate, 8 parts of titanium dioxide, 3 parts of carbon black, 2 parts of modified glass beads, 5 parts of silane coupling agent, 2 parts of barium sulfate powder, 3 parts of carboxymethyl cellulose, 8 parts of zinc oxide, 3 parts of chromium sesquioxide, 4 parts of chromium chloride, 10 parts of graphite, 15 parts of curing agent, 5 parts of ferrous nitrate and 5 parts of silicon nitride.
The preparation method of the corrosion-resistant aluminum alloy door and window comprises the following steps:
the method comprises the following steps: preparing an aluminum alloy door and window body, respectively carrying out ball milling on aluminum powder, tin powder, copper powder, nickel powder, magnesium powder, silicon powder, zinc powder, titanium powder, strontium powder and cobalt powder, then mixing and stirring the ball-milled and crushed aluminum powder, tin powder, copper powder, nickel powder, magnesium powder, silicon powder, zinc powder, titanium powder, strontium powder and cobalt powder, controlling the mixing and stirring speed to be 580 revolutions per minute, mixing and stirring time to be 38 minutes, adding rare earth elements for ultrasonic dispersion, controlling the ultrasonic dispersion time to be 14 minutes, controlling the ultrasonic dispersion temperature to be 32 ℃ to obtain a mixture, and then carrying out static pressure forming on the mixture in a forming die to obtain an aluminum alloy green body door and window;
step two: preheating the aluminum alloy door and window green body for 1.3 hours in a nitrogen environment, controlling the preheating temperature to 385 ℃, adjusting the temperature to 526 ℃, and then carrying out hot press molding to obtain an aluminum alloy door and window body;
step three: respectively grinding the ammonium polyphosphate, the carbon black, the zinc oxide, the barium sulfate powder, the ferrous nitrate and the silicon nitride at low temperature, and controlling the particle size of nano-scale powder prepared from the ammonium polyphosphate, the carbon black, the zinc oxide, the barium sulfate powder, the ferrous nitrate and the silicon nitride to be 55 nanometers to prepare nano-scale powder for later use;
step four: oxidizing graphite by nitric acid and potassium permanganate to obtain graphite oxide, washing with water, and drying at low temperature for 1.8 hours at 2 deg.C to obtain graphite powder;
step five: adding the modified phenolic resin and the epoxy resin into a stirring kettle, mixing and stirring for 40-50 minutes, and controlling the stirring speed to be 750 revolutions per minute;
step six: adding the amine polyphosphate, the carbon black, the zinc oxide, the barium sulfate powder, the ferrous nitrate and the silicon nitride nano-scale powder into a stirring kettle, mixing and stirring for 25 minutes, adding the titanium dioxide, the silane coupling agent, the carboxymethyl cellulose, the chromium oxide, the chromium chloride and the curing agent into the stirring kettle, mixing and stirring for 35 minutes, and controlling the mixing and stirring speed to be 560 revolutions per minute;
step seven: adding the graphite powder and the modified glass beads prepared in the fourth step into a stirring kettle, and stirring at a high speed of 920 revolutions per minute for 13 minutes to prepare a corrosion-resistant composition;
step eight: and D, performing fine polishing treatment on the surface of the aluminum alloy door and window body obtained in the step II by adopting 900-mesh abrasive paper, uniformly coating the corrosion-resistant composition prepared in the step seven on the surface of the aluminum alloy door and window body, wherein the number of the coating layers of the corrosion-resistant composition is 3, standing and drying for 1.6 hours every time when one layer is coated, standing and drying for 2.5 hours after the last layer of the corrosion-resistant composition is coated, and performing constant-temperature drying for 35 minutes, wherein the constant-temperature drying temperature is controlled to be 36 ℃ to prepare the corrosion-resistant aluminum alloy door.
Example two
The utility model provides a corrosion-resistant al-alloy door & window, includes al-alloy door & window body and corrosion-resistant coating, al-alloy door & window body surface coating has corrosion-resistant coating, al-alloy body comprises the raw materials of following mass ratio composition: 108 parts of aluminum powder, 6 parts of rare earth elements, 18 parts of tin powder, 11 parts of copper powder, 6 parts of nickel powder, 7 parts of magnesium powder, 11 parts of silicon powder, 6 parts of zinc powder, 4 parts of titanium powder, 3 parts of strontium powder and 2 parts of cobalt powder;
the corrosion-resistant coating is composed of the following raw materials in percentage by mass: 33 parts of modified phenolic resin, 22 parts of epoxy resin, 2 parts of ammonium polyphosphate, 9 parts of titanium dioxide, 3.5 parts of carbon black, 3 parts of modified glass beads, 6 parts of silane coupling agent, 3 parts of barium sulfate powder, 3.5 parts of carboxymethyl cellulose, 9 parts of zinc oxide, 4 parts of chromium sesquioxide, 6 parts of chromium chloride, 13 parts of graphite, 16 parts of curing agent, 6 parts of ferrous nitrate and 6 parts of silicon nitride.
The preparation method of the corrosion-resistant aluminum alloy door and window comprises the following steps:
the method comprises the following steps: preparing an aluminum alloy door and window body, respectively carrying out ball milling on aluminum powder, tin powder, copper powder, nickel powder, magnesium powder, silicon powder, zinc powder, titanium powder, strontium powder and cobalt powder, then mixing and stirring the ball-milled and crushed aluminum powder, tin powder, copper powder, nickel powder, magnesium powder, silicon powder, zinc powder, titanium powder, strontium powder and cobalt powder, controlling the mixing and stirring speed to be 580 revolutions per minute, mixing and stirring time to be 38 minutes, adding rare earth elements for ultrasonic dispersion, controlling the ultrasonic dispersion time to be 14 minutes, controlling the ultrasonic dispersion temperature to be 32 ℃ to obtain a mixture, and then carrying out static pressure forming on the mixture in a forming die to obtain an aluminum alloy green body door and window;
step two: preheating the aluminum alloy door and window green body for 1.3 hours in a nitrogen environment, controlling the preheating temperature to 385 ℃, adjusting the temperature to 526 ℃, and then carrying out hot press molding to obtain an aluminum alloy door and window body;
step three: respectively grinding the ammonium polyphosphate, the carbon black, the zinc oxide, the barium sulfate powder, the ferrous nitrate and the silicon nitride at low temperature, and controlling the particle size of nano-scale powder prepared from the ammonium polyphosphate, the carbon black, the zinc oxide, the barium sulfate powder, the ferrous nitrate and the silicon nitride to be 55 nanometers to prepare nano-scale powder for later use;
step four: oxidizing graphite by nitric acid and potassium permanganate to obtain graphite oxide, washing with water, and drying at low temperature for 1.8 hours at 2 deg.C to obtain graphite powder;
step five: adding the modified phenolic resin and the epoxy resin into a stirring kettle, mixing and stirring for 40-50 minutes, and controlling the stirring speed to be 750 revolutions per minute;
step six: adding the amine polyphosphate, the carbon black, the zinc oxide, the barium sulfate powder, the ferrous nitrate and the silicon nitride nano-scale powder into a stirring kettle, mixing and stirring for 25 minutes, adding the titanium dioxide, the silane coupling agent, the carboxymethyl cellulose, the chromium oxide, the chromium chloride and the curing agent into the stirring kettle, mixing and stirring for 35 minutes, and controlling the mixing and stirring speed to be 560 revolutions per minute;
step seven: adding the graphite powder and the modified glass beads prepared in the fourth step into a stirring kettle, and stirring at a high speed of 920 revolutions per minute for 13 minutes to prepare a corrosion-resistant composition;
step eight: and D, performing fine polishing treatment on the surface of the aluminum alloy door and window body obtained in the step II by adopting 900-mesh abrasive paper, uniformly coating the corrosion-resistant composition prepared in the step seven on the surface of the aluminum alloy door and window body, wherein the number of the coating layers of the corrosion-resistant composition is 3, standing and drying for 1.6 hours every time when one layer is coated, standing and drying for 2.5 hours after the last layer of the corrosion-resistant composition is coated, and performing constant-temperature drying for 35 minutes, wherein the constant-temperature drying temperature is controlled to be 36 ℃ to prepare the corrosion-resistant aluminum alloy door.
EXAMPLE III
The utility model provides a corrosion-resistant al-alloy door & window, includes al-alloy door & window body and corrosion-resistant coating, al-alloy door & window body surface coating has corrosion-resistant coating, al-alloy body comprises the raw materials of following mass ratio composition: 115 parts of aluminum powder, 8 parts of rare earth elements, 20 parts of tin powder, 12 parts of copper powder, 8 parts of nickel powder, 8 parts of magnesium powder, 12 parts of silicon powder, 7 parts of zinc powder, 5 parts of titanium powder, 4 parts of strontium powder and 3 parts of cobalt powder;
the corrosion-resistant coating is composed of the following raw materials in percentage by mass: 35 parts of modified phenolic resin, 25 parts of epoxy resin, 3 parts of ammonium polyphosphate, 10 parts of titanium dioxide, 4 parts of carbon black, 4 parts of modified glass beads, 7 parts of silane coupling agent, 4 parts of barium sulfate powder, 4 parts of carboxymethyl cellulose, 10 parts of zinc oxide, 5 parts of chromium oxide, 7 parts of chromium chloride, 15 parts of graphite, 18 parts of curing agent, 7 parts of ferrous nitrate and 7 parts of silicon nitride.
The preparation method of the corrosion-resistant aluminum alloy door and window comprises the following steps:
the method comprises the following steps: preparing an aluminum alloy door and window body, respectively carrying out ball milling on aluminum powder, tin powder, copper powder, nickel powder, magnesium powder, silicon powder, zinc powder, titanium powder, strontium powder and cobalt powder, then mixing and stirring the ball-milled and crushed aluminum powder, tin powder, copper powder, nickel powder, magnesium powder, silicon powder, zinc powder, titanium powder, strontium powder and cobalt powder, controlling the mixing and stirring speed to be 580 revolutions per minute, mixing and stirring time to be 38 minutes, adding rare earth elements for ultrasonic dispersion, controlling the ultrasonic dispersion time to be 14 minutes, controlling the ultrasonic dispersion temperature to be 32 ℃ to obtain a mixture, and then carrying out static pressure forming on the mixture in a forming die to obtain an aluminum alloy green body door and window;
step two: preheating the aluminum alloy door and window green body for 1.3 hours in a nitrogen environment, controlling the preheating temperature to 385 ℃, adjusting the temperature to 526 ℃, and then carrying out hot press molding to obtain an aluminum alloy door and window body;
step three: respectively grinding the ammonium polyphosphate, the carbon black, the zinc oxide, the barium sulfate powder, the ferrous nitrate and the silicon nitride at low temperature, and controlling the particle size of nano-scale powder prepared from the ammonium polyphosphate, the carbon black, the zinc oxide, the barium sulfate powder, the ferrous nitrate and the silicon nitride to be 55 nanometers to prepare nano-scale powder for later use;
step four: oxidizing graphite by nitric acid and potassium permanganate to obtain graphite oxide, washing with water, and drying at low temperature for 1.8 hours at 2 deg.C to obtain graphite powder;
step five: adding the modified phenolic resin and the epoxy resin into a stirring kettle, mixing and stirring for 40-50 minutes, and controlling the stirring speed to be 750 revolutions per minute;
step six: adding the amine polyphosphate, the carbon black, the zinc oxide, the barium sulfate powder, the ferrous nitrate and the silicon nitride nano-scale powder into a stirring kettle, mixing and stirring for 25 minutes, adding the titanium dioxide, the silane coupling agent, the carboxymethyl cellulose, the chromium oxide, the chromium chloride and the curing agent into the stirring kettle, mixing and stirring for 35 minutes, and controlling the mixing and stirring speed to be 560 revolutions per minute;
step seven: adding the graphite powder and the modified glass beads prepared in the fourth step into a stirring kettle, and stirring at a high speed of 920 revolutions per minute for 13 minutes to prepare a corrosion-resistant composition;
step eight: and D, performing fine polishing treatment on the surface of the aluminum alloy door and window body obtained in the step II by adopting 900-mesh abrasive paper, uniformly coating the corrosion-resistant composition prepared in the step seven on the surface of the aluminum alloy door and window body, wherein the number of the coating layers of the corrosion-resistant composition is 3, standing and drying for 1.6 hours every time when one layer is coated, standing and drying for 2.5 hours after the last layer of the corrosion-resistant composition is coated, and performing constant-temperature drying for 35 minutes, wherein the constant-temperature drying temperature is controlled to be 36 ℃ to prepare the corrosion-resistant aluminum alloy door.
According to the first embodiment, the second embodiment and the third embodiment, the aluminum alloy body of the invention is composed of the following raw materials in percentage by mass: 100-115 parts of aluminum powder, 5-8 parts of rare earth elements, 15-20 parts of tin powder, 10-12 parts of copper powder, 5-8 parts of nickel powder, 6-8 parts of magnesium powder, 10-12 parts of silicon powder, 5-7 parts of zinc powder, 3-5 parts of titanium powder, 2-4 parts of strontium powder and 1-3 parts of cobalt powder, and the corrosion-resistant coating is composed of the following raw materials in parts by mass: 30-35 parts of modified phenolic resin, 20-25 parts of epoxy resin, 1-3 parts of ammonium polyphosphate, 8-10 parts of titanium dioxide, 3-4 parts of carbon black, 2-4 parts of modified glass beads, 5-7 parts of silane coupling agent, 2-4 parts of barium sulfate powder, 3-4 parts of carboxymethyl cellulose, 8-10 parts of zinc oxide, 3-5 parts of chromium sesquioxide, 4-7 parts of chromium chloride, 10-15 parts of graphite, 15-18 parts of curing agent, 5-7 parts of ferrous nitrate and 5-7 parts of silicon nitride.
By adding titanium powder, strontium powder and cobalt powder into the aluminum alloy door and window body, the high temperature resistance and corrosion resistance of the aluminum alloy door and window body can be improved, the aluminum alloy door and window body can have high tensile strength and yield strength, the elongation and extrusion speed of the aluminum alloy door and window body are improved, the plasticity is enhanced, the strength and the plasticity of the aluminum alloy door and window body can be improved by adding rare earth elements into the aluminum alloy door and window body, the rare earth elements can improve the alloy structure of the aluminum alloy door and window body, the tolerance of the aluminum alloy door and window body in a high-temperature and high-corrosion environment can be improved, the corrosion resistance of the aluminum alloy door and window body can be improved by coating a plurality of layers of corrosion-resistant compositions on the surface of the aluminum alloy door and window body to form the corrosion-resistant coating, the specific and higher service life of the aluminum alloy door and window body can still be ensured when the aluminum alloy door and window body is used in corrosive environments such as chemical plants and smelting plants.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention as defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. The utility model provides a corrosion-resistant al-alloy door & window which characterized in that: the corrosion-resistant aluminum alloy door and window comprises an aluminum alloy door and window body and a corrosion-resistant coating, wherein the corrosion-resistant coating is coated on the surface of the aluminum alloy door and window body, and the aluminum alloy door and window body is composed of the following raw materials in percentage by mass: 100-115 parts of aluminum powder, 5-8 parts of rare earth elements, 15-20 parts of tin powder, 10-12 parts of copper powder, 5-8 parts of nickel powder, 6-8 parts of magnesium powder, 10-12 parts of silicon powder, 5-7 parts of zinc powder, 3-5 parts of titanium powder, 2-4 parts of strontium powder and 1-3 parts of cobalt powder;
the corrosion-resistant coating is composed of the following raw materials in percentage by mass: 30-35 parts of modified phenolic resin, 20-25 parts of epoxy resin, 1-3 parts of ammonium polyphosphate, 8-10 parts of titanium dioxide, 3-4 parts of carbon black, 2-4 parts of modified glass beads, 5-7 parts of silane coupling agent, 2-4 parts of barium sulfate powder, 3-4 parts of carboxymethyl cellulose, 8-10 parts of zinc oxide, 3-5 parts of chromium sesquioxide, 4-7 parts of chromium chloride, 10-15 parts of graphite, 15-18 parts of curing agent, 5-7 parts of ferrous nitrate and 5-7 parts of silicon nitride.
2. The preparation method of the corrosion-resistant aluminum alloy door and window is characterized by comprising the following steps of:
the method comprises the following steps: preparing an aluminum alloy door and window body, respectively carrying out ball milling crushing on aluminum powder, tin powder, copper powder, nickel powder, magnesium powder, silicon powder, zinc powder, titanium powder, strontium powder and cobalt powder, then mixing and stirring the ball milled and crushed aluminum powder, tin powder, copper powder, nickel powder, magnesium powder, silicon powder, zinc powder, titanium powder, strontium powder and cobalt powder, adding rare earth elements for ultrasonic dispersion to obtain a mixture, and then carrying out static pressure forming on the mixture in a forming die to obtain an aluminum alloy door and window green body;
step two: carrying out hot press molding on the aluminum alloy door and window green body in a nitrogen environment to obtain an aluminum alloy door and window body;
step three: respectively grinding ammonium polyphosphate, carbon black, zinc oxide, barium sulfate powder, ferrous nitrate and silicon nitride at low temperature to prepare nano-scale powder for later use;
step four: oxidizing graphite by nitric acid and potassium permanganate to obtain graphite oxide, washing with water, and drying at low temperature to obtain graphite powder;
step five: adding the modified phenolic resin and the epoxy resin into a stirring kettle, mixing and stirring for 40-50 minutes, and controlling the stirring speed to be 600-800 revolutions per minute;
step six: adding the amine polyphosphate, the carbon black, the zinc oxide, the barium sulfate powder, the ferrous nitrate and the silicon nitride nanoscale powder into a stirring kettle, mixing and stirring for 20-30 minutes, and then adding the titanium dioxide, the silane coupling agent, the carboxymethyl cellulose, the chromium oxide, the chromium chloride and the curing agent into the stirring kettle, mixing and stirring for 30-40 minutes;
step seven: adding the graphite powder and the modified glass beads prepared in the fourth step into a stirring kettle, and stirring at a high speed of 800-1000 rpm for 12-15 minutes to prepare a corrosion-resistant composition;
step eight: and D, finely polishing the surface of the aluminum alloy door and window body obtained in the step II by using 800-1000-mesh abrasive paper, uniformly coating the corrosion-resistant composition prepared in the step seven on the surface of the aluminum alloy door and window body, wherein the number of the coating layers of the corrosion-resistant composition is 2-3, standing for 2-3 hours, and drying at constant temperature for 30-40 minutes to prepare the corrosion-resistant aluminum alloy door and window.
3. The method for preparing a corrosion-resistant aluminum alloy door and window according to claim 2, characterized in that: and C, when the aluminum powder, the tin powder, the copper powder, the nickel powder, the magnesium powder, the silicon powder, the zinc powder, the titanium powder, the strontium powder and the cobalt powder which are subjected to ball milling and crushing in the step I are mixed and stirred, the mixing and stirring speed is controlled to be 500-600 revolutions per minute, and the mixing and stirring time is controlled to be 30-40 minutes.
4. The method for preparing a corrosion-resistant aluminum alloy door and window according to claim 2, characterized in that: in the first step, the ultrasonic dispersion time is controlled to be 12-15 minutes, and the ultrasonic dispersion temperature is controlled to be 30-35 ℃.
5. The method for preparing a corrosion-resistant aluminum alloy door and window according to claim 2, characterized in that: the hot-press molding in the second step comprises the following specific processes: preheating the aluminum alloy door and window green body for 1-1.5 hours in a nitrogen environment, controlling the preheating temperature to be 350-400 ℃, and then adjusting the temperature to 520-530 ℃ and then carrying out hot-press forming to obtain the aluminum alloy door and window body.
6. The method for preparing a corrosion-resistant aluminum alloy door and window according to claim 2, characterized in that: and in the third step, the particle size of the nano-scale powder prepared from the ammonium polyphosphate, the carbon black, the zinc oxide, the barium sulfate powder, the ferrous nitrate and the silicon nitride is controlled to be 50-60 nanometers.
7. The method for preparing a corrosion-resistant aluminum alloy door and window according to claim 2, characterized in that: and in the fourth step, the temperature is controlled to be 0-3 ℃ during low-temperature drying treatment, and the low-temperature drying time is 1.5-2 hours.
8. The method for preparing a corrosion-resistant aluminum alloy door and window according to claim 2, characterized in that: and in the sixth step, the mixing and stirring speed is controlled to be 500-600 revolutions per minute.
9. The method for preparing a corrosion-resistant aluminum alloy door and window according to claim 2, characterized in that: and step eight, when the corrosion-resistant composition is uniformly coated on the surface of the aluminum alloy door and window body, standing and drying for 1.5-2 hours for each coated layer, standing and drying for 2-3 hours after the last layer of the corrosion-resistant composition is coated, and controlling the constant-temperature drying temperature to be 35-38 ℃ during constant-temperature drying.
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