CN108977703A - A kind of aluminum alloy mould plate and preparation method thereof - Google Patents
A kind of aluminum alloy mould plate and preparation method thereof Download PDFInfo
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- CN108977703A CN108977703A CN201810717926.0A CN201810717926A CN108977703A CN 108977703 A CN108977703 A CN 108977703A CN 201810717926 A CN201810717926 A CN 201810717926A CN 108977703 A CN108977703 A CN 108977703A
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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
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
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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
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
- C09D4/06—Organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond in combination with a macromolecular compound other than an unsaturated polymer of groups C09D159/00 - C09D187/00
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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
- C09D7/70—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
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/026—Alloys based on aluminium
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/02—Making non-ferrous alloys by melting
- C22C1/03—Making non-ferrous alloys by melting using master alloys
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/04—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon
- C22F1/043—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of aluminium or alloys based thereon of alloys with silicon as the next major constituent
Abstract
The present invention relates to a kind of aluminum alloy mould plates and preparation method thereof, the aluminum alloy mould plate raw material includes the raw material of following parts by weight: 0.5~0.55 part of magnesium, 0.3~0.5 part of manganin, 0.05~0.1 part of iron, 0.01~0.02 part of zinc, 0.04~0.06 part of nickel, 0.03~0.05 part of beryllium, 0.1~0.15 part of silver, 0.7~0.75 part of silicon, 97~98 parts of aluminium ingot, copper content≤0.2% in the aluminium ingot, iron-content≤0.2%, preparation step includes ingredient, melting, refining, pack alloy template, the hot overlay film of aluminum alloy mould plate, ageing treatment, aluminum alloy mould plate processing, obtained aluminum alloy mould plate can effectively improve hardness and strength, reach firm, durable, purpose more than the number of turnover, aluminium conjunction can also be improved The problem of gold is chemically reacted with concrete avoids occurring crafters and floating ash on wall.
Description
Technical field
The present invention relates to building template technical fields more particularly to a kind of aluminum alloy mould plate and preparation method thereof.
Background technique
It is now widely used for the support system of Roofing slab, mostly steel tube fastener and total sub-semigroup.These systems with
Top floor slab form of storied building system is respectively independent, lacks integrated design, largely there is construction efficiency low, waste material and working hour
Phenomenon, in addition as the improper of support equipment and arrangement and method for construction and caused by safety accident, be likely to result in serious personnel's wound
Die accident.With the large-scale infrastructure in China, such as highway, railway, urban track traffic and skyscraper, superelevation
The construction of layer building and large public building, aluminum alloy building template use increasingly widespreadization.Aluminum alloy mould plate refers to that aluminium closes
The building template of gold production refers to make by modulus and design, is made after special equipment squeezes.It (is directly connect by aluminum deck
The force bearing plate for touching new poured concrete, including assembled plate and ribbed panel), the bracket component of panel and support top (connection) and connector (panel
The splicing of connection, panel itself, the connection of reinforcement system and its spare and accessory parts with support top) have composed by tripartite system
Whole matching used universal accessories, whole mould bases of the energy composite assembly at various sizes of overall dimensions complexity, assembling, work
The system template of industryization construction, solves defect existing for previous conventional template, substantially increases construction efficiency.
However there are still problems in aluminum alloy mould plate preparation process at present, different melting point metals differs greatly, therefore aluminium
Alloy has very wide solidification temperature range, and when solidification will cause the casting flaws such as hot tearing, shrinkage cavity and porosity, the segregation of product,
Cause aluminum alloy mould plate performance to decline, causes hardness and strength inadequate, so that access times are reduced, and aluminum alloy mould plate is to this
Body hardness proposes that high requirement can jeopardize construction quality and constructor if hardness not enough will appear the technological deficiencies such as gap, deformation
The life security of member.Secondly, before new aluminum alloy mould plate several times in use, aluminium material surface can and concrete chemically react,
Concrete surface seems smooth, but will appear minute bubbles, causes the floating ash of concrete surface, perception is poor, to later period engineering
It has some impact on.
Summary of the invention
In view of this, can be effectively improved it is an object of the invention to provide a kind of aluminum alloy mould plate and preparation method thereof
The hardness and strength of aluminum alloy mould plate, achieve the purpose that firm, durable, the number of turnover are more, can also improve aluminium conjunction after overlay film
The problem of gold is chemically reacted with concrete avoids pouring the concrete to be formed and crafters and floating grey occurs.
The present invention solves above-mentioned technical problem by following technological means:
A kind of aluminum alloy mould plate, the aluminum alloy mould plate include the raw material of following parts by weight: 0.5~0.55 part of magnesium, manganese
0.3~0.5 part of copper alloy, 0.05~0.1 part of iron, 0.01~0.02 part of zinc, 0.04~0.06 part of nickel, 0.03~0.05 part of beryllium,
Silver-colored 0.1~0.15 part, 0.7~0.75 part of silicon, 97~98 parts of aluminium ingot, the aluminum alloy surface has one layer of not mucous membrane, the aluminium
Alloy templates are with a thickness of 4.0-5.0mm, bearing capacity 30-50KN/m2。
Further, the aluminum alloy mould plate includes the raw material of following parts by weight: 0.5 part of magnesium, 0.3 part of manganin, iron
0.1 part, 0.02 part of zinc, 0.06 part of nickel, 0.03 part of beryllium, silver-colored 0.13 part, 0.73 part of silicon, 98 parts of aluminium ingot, copper content in the aluminium ingot
≤ 0.2%, iron-content≤0.2%.
The chemical property of fine aluminium is excessively active, is easily oxidized, and burning point is lower, and hardness is relatively low, lighter weight, is added
The tensile strength and yield strength of alloy can be improved in manganin, beryllium, and adds iron, silicon, nickel, magnesium, zinc, silicon and can be improved by force
Increase toughness and ductility while spending, and silver has the function of antibacterial, according to a small amount of other metals of aforementioned proportion addition or
Alloy, the aluminum alloy mould plate of preparation have the characteristics that aluminium light weight, while the spy of the specific strength height, high tenacity also with alloy
Point.Although aluminum alloy mould plate, than relatively thin, bearing capacity is high, conventional construction is suitble to use.
Further, the aluminum alloy mould plate the preparation method is as follows:
Ingredient: by magnesium, manganin, iron, zinc, nickel, beryllium, silver, silicon, aluminium ingot carries out ingredient；
Melting: before non-blow-on, in test furnace after hydrogen content≤0.2mL/100g, firing up is preheated to 200-300
After DEG C, beryllium, silicon, iron, nickel, manganin is added, then be warming up to 500-600 DEG C with 50-60 DEG C/min, after keeping the temperature 1-2h, is added
Zinc heat preservation 1-2h is added after being continuously heating to 800-900 DEG C of heat preservation 2-3h in silver, magnesium, aluminium；
Molten aluminium alloy temperature is higher, and the hydrogen of absorption is also more, at 500 DEG C or so, the solubility of hydrogen in every 100g aluminium
It is 0.3~0.5, when temperature is increased to 800 DEG C or so, the solubility of hydrogen increases by 2~3 times, and when containing alkali metal, hydrogen exists
Solubility in molten aluminum dramatically increases, so must control hydrogen content in furnace before melting；And the fusing point different according to metal
Difference feeds intake in order, can accelerate the burn-off rate of material.
Refining: first time refining is carried out under the conditions of 740-780 DEG C of temperature, is passed through gas in first time refining process
One, refining time 30-60min are then cooled to 700-720 DEG C and carry out second of refining, be passed through gas when refining for the second time
Two, refining time 20-30min, refining are completed, and molten metal is obtained；
Die casting: after the molten metal that refining is obtained stands 10-30min, after descum, in cooling water pressure 0.25-
0.3MPa, 30-60 DEG C of temperature, flow 200-250m3Die casting is carried out under/h condition；
Overlay film: under the conditions of 150-250 DEG C of temperature, spraying overlay film liquid carries out heat and covers the aluminum alloy mould plate that die casting is completed
Film, it is cooling, obtain being covered with the aluminum alloy mould plate of not mucous membrane；The aluminum alloy mould plate that die casting is completed carries out hot overlay film, and aluminium first closes
For golden template just after die cast, surface film oxide is less, and also growth does not terminate completely between crystal, and with waste heat,
It can use waste heat and overlay film liquid be coated in aluminum alloy mould plate surface, avoid the heat-curing step in later period, aluminum alloy mould plate
It can also prevent from mixed mud and aluminum alloy mould plate from contacting after overlay film to be chemically reacted, concrete surface is caused to have bubble and float
Ash, perception are poor.
Ageing treatment: aluminum alloy mould plate after cooling is heated to 100-200 DEG C, keeps 10-12h；Through Wetted constructures
Its hardness and strength of aluminum alloy mould plate afterwards improve, and reach much firmer aluminum alloy mould plate, durable and the number of turnover
Purpose.
Subsequent processing: aluminum alloy mould plate carries out edging processing, obtains aluminum alloy mould plate.
Further, in the refinement step, the gas one being passed through is nitrogen, and being passed through flow is 18-22L/min, forms pressure
Power 0.3-0.4MPa.
Further, in the refinement step, the gas two that is passed through is the mixed gas of argon gas and nitrogen, the argon gas being passed through and
Nitrogen ratios=65%:35%, the flow velocity of mixed gas are 15-18L/min, pressure initiation 0.2-0.3MPa.
It is passed through inert gas and is to effectively completely cut off metal and by the medium oxidizing in air or it occurs at high temperature
He reacts.The inert gas different with the variation selection of smelting process crystal form is protected depending on the temperature, is more advantageous to
The control of cost.
Further, the aluminum alloy mould plate heat covers the concrete operations of not mucous membrane step are as follows: is cooled to aluminum alloy mould plate
At 150-250 DEG C, surface metal slag is removed, overlay film liquid is uniformly sprayed to the aluminum alloy mould plate surface of die casting completion, is cooled to
After 70-100 DEG C, then uniformly second of sprinkling, third time is sprayed upon cooling to room temperature.It is sprayed using gradient temperature, Ke Yi
Overlay film liquid is activated when high temperature, and in aluminum alloy mould plate preparation process, since aluminum alloy mould plate is not cooled to room temperature, crystal form
Not yet growth terminates completely, and surface hole of shrinking is more, overlay film liquid can be preferably attached to aluminum alloy mould plate surface.
Further, the overlay film liquid includes the raw material of following parts by weight: 40-70 parts of honeycomb compounds, 150-200 parts
Polyimide powder, 20-25 part boron oxide, 10-15 parts of maleic anhydrides, 10-20 parts of mica powders, 20-25 parts of dispersing agents, 10-15
Glycerol.There is high temperature resistant outstanding, resistance to spoke after the overlay film liquid solidification that polyimide powder combined honeycomb compound is prepared
Penetrate, chemical corrosion resistance the characteristics of, concrete can be completely cut off and directly contacted with aluminum alloy mould plate, prevent to chemically react.
Further, the overlay film liquid the preparation method is as follows: polyimide powder is dissolved in dichloromethane solution, be added
Maleic anhydride after mixing evenly, adds dispersing agent, mica powder, boron oxide after mixing evenly, with 1500-2000r/min machinery
After stirring 30-50min, honeycomb compound is added, 10-15min is again stirring for 2000-2500r/min and is mixed, is stood
10-15min is heated to 40-50 DEG C, obtains overlay film liquid after stirring 20-30min with the frequency ultrasonic wave of 10-12kHz.
Further, the honeycomb compound prepares raw material and includes:
Nano aluminium oxide, nano silica, rare earth element, carbon black, rosin, starch, castor oil, the black grain diameter are
5-10 μm, nano aluminium oxide, nano silica partial size are 20-50nm, and rare earth element partial size is 30-60nm, the rare earth
Be nano yttrium oxide in element, the mixture of nano-cerium oxide, nano lanthanum oxide, in mixture containing 22% nano yttrium oxide,
31% nano-cerium oxide, 47% nano lanthanum oxide.
Further, the honeycomb compound preparation method the following steps are included:
By aluminium oxide, silica, rare earth element and carbon black according to weight ratio 1:1:(0.3-0.5): the ratio of (0.6-0.9)
It after example is mixed evenly, is dried under conditions of 60-80 DEG C, it is mixed that castor oil, starch, rosin is added after dry completion
Close uniformly, be briquet under 10-15MPa in pressure, drying and moulding is warming up to 100-200 DEG C with 20 DEG C/min, in furnace every
Exhausted air fires 20-30min, then is passed through air and is warming up to 300-400 DEG C with 30 DEG C/min, after firing 30-40min, with 30 DEG C/
Min is warming up to 900-1000 DEG C of heat preservation calcining 8-15h, and cooling post-processing is ground to 5-9 μm of spherical particle, it is multiple to obtain honeycomb
Close object.
Honeycomb compound by being formed after aluminium oxide, silica, rare earth element mixing by calcining, rosin, starch,
Castor oil can be used as binder and be bonded together aluminium oxide, silica, rare earth element and carbon black, each when compression moulding
Component is combined closely.In isolation air low temperature calcination stage, blocky compound not only slowly becomes consolidation, but also because castor oil contains
There is a large amount of ricinoleic acid, and contain a large amount of hydroxyl, in the absence of air conditions, carbon black activation, reactivity is got higher, carbon black
Microstructure interlamellar spacing become larger, volume slightly expands, and is passed through after enough air to heat up and calcine again, it is anti-that oxidation can occur for carbon black
It answers, block mixture forms honeycomb hole, but the thermal decomposition temperature of aluminium oxide, silica, rare earth element is higher, calcined
Cheng Zhonghui keeps solid shape.Aluminium oxide can form the Alpha-alumina of stable crystal form, by rare earth doped member after calcining
Element and silica are prepared into cellular compound together, and above-mentioned three kinds of rare earth elements all have fusing point height, and alkali resistance is strong
The characteristics of, it is proportionally added into a certain amount of rare earth element, the resistance to flaking of aluminum alloy mould plate skin covering of the surface can be improved, extend film
Service life generates chemical reaction to completely cut off aluminum alloy mould plate and mixed mud, and the wall that can avoid casting has floating ash and bubble to produce
It is raw, and its hardness improves, under the alkaline condition of concrete, it is not easy to be worn.
Beneficial effects of the present invention: aluminium conjunction can effectively be mitigated by preparing aluminum alloy mould plate according to ratio disclosed by the invention
The weight of golden template, the aluminum alloy mould plate prepared hardness with higher, intensity and toughness, have firm, durable,
Feature more than the number of turnover, aluminum alloy mould plate surface face are covered with not mucous membrane, on the one hand aluminium alloy can be prevented direct with concrete
On the other hand the problem of contact chemically reacts facilitates aluminum alloy mould plate to avoid occurring crafters and floating ash on wall
It can exempt from using release agent, easy mold release.
Specific embodiment
Below with reference to specific embodiment, the present invention is described in detail:
Embodiment 1: the preparation one of overlay film liquid
Honeycomb compound includes the raw material of following parts by weight: 50 parts of nano aluminium oxides, 50 parts of nano silicas,
15 parts of rare earth elements, 30 parts of carbon blacks, 10 parts of rosin, 5 parts of starch, 7 parts of castor oil, wherein the black grain diameter chosen is 5 μm, nanometer
Aluminium oxide, nano silica partial size are 20nm or so, and rare earth element partial size is 30nm or so, are received in rare earth element containing 22%
Rice yttrium oxide, 31% nano-cerium oxide, 47% nano lanthanum oxide.
After aluminium oxide, silica, rare earth element and carbon black are mixed evenly, done under conditions of 60 DEG C
Dry, dry addition castor oil, starch, the rosin later completed is uniformly mixed, and is the lower briquet of 10MPa or so in pressure, blocking
Drying and moulding afterwards will completely cut off air in furnace, is warming up to 100 DEG C or so with 20 DEG C/min, after firing 20min, is passed through air with 30
DEG C/min is warming up to 300 DEG C, and after firing 40min, then 900 DEG C of heat preservations firing 15h are warming up to 30 DEG C/min, after the completion of firing,
Cooling is taken out, processing is ground to 5-9 μm of spherical particle, obtains honeycomb compound.
The overlay film liquid of the present embodiment includes the raw material of following parts by weight: 40 parts of honeycomb compounds of use preparation,
150 parts of polyimide powders, 20 parts of boron oxides, 10 parts of maleic anhydrides, 10 parts of mica powders, 20 parts of dispersing agents, 10 glycerol；
Polyimide powder is dissolved in 35wt% dichloromethane solution, maleic anhydride is added and stirs evenly, adds point
Powder, mica powder, boron oxide add honeycomb compound, after 1500r/min mechanical stirring 50min with 2000r/min
It is again stirring for 15min mixing, stands 10min, after stirring 20min with the frequency ultrasonic wave of 12kHz, is heated to 40 DEG C, heat preservation
Overlay film liquid is obtained after 60min.
Embodiment 2: the preparation two of overlay film liquid
Honeycomb compound includes the raw material of following parts by weight: 50 parts of nano aluminium oxides, 50 parts of nano silicas,
15 parts of rare earth elements, 30 parts of carbon blacks, 10 parts of rosin, 5 parts of starch, 7 parts of castor oil are received wherein the black grain diameter chosen is 10 μm
Rice aluminium oxide, nano silica partial size are 30nm or so, and rare earth element partial size is 50nm or so, and 22% is contained in rare earth element
Nano yttrium oxide, 31% nano-cerium oxide, 47% nano lanthanum oxide.
After aluminium oxide, silica, rare earth element and carbon black are mixed evenly, done under conditions of 70 DEG C
Dry, dry addition castor oil, starch, the rosin later completed is uniformly mixed, and is the lower briquet of 12MPa or so in pressure, blocking
Drying and moulding afterwards will completely cut off air in furnace, is warming up to 150 DEG C or so with 20 DEG C/min, after firing 20min, is passed through air with 30
DEG C/min is warming up to 350 DEG C, and after firing 30min, then 900 DEG C of heat preservations firing 14h are warming up to 30 DEG C/min, after the completion of firing,
Cooling is taken out, processing is ground to 5-9 μm of spherical particle, obtains honeycomb compound.
The overlay film liquid of the present embodiment includes the raw material of following parts by weight: 60 parts of honeycomb compounds of use preparation,
170 parts of polyimide powder parts, 22 parts of boron oxide parts, 13 parts of maleic anhydrides, 15 parts of mica powders, 6.4 parts of rare earth elements, 22 parts points
Powder, 12 parts of glycerol parts；
Polyimide powder is dissolved in 35wt% dichloromethane solution, maleic anhydride is added after mixing evenly, adds
Dispersing agent, mica powder, boron oxide add honeycomb compound, after 1700r/min mechanical stirring 40min with 2300r/
Min is again stirring for 12min mixing, stands 12min, is heated to 50 DEG C after stirring 30min with the frequency ultrasonic wave of 10kHz, heat preservation
Overlay film liquid is obtained after 60min.
Embodiment 3: the preparation three of overlay film liquid
Honeycomb compound includes the raw material of following parts by weight: 50 parts of nano aluminium oxides, 50 parts of nano silicas,
15 parts of rare earth elements, 30 parts of carbon blacks, 10 parts of rosin, 5 parts of starch, 7 parts of castor oil are received wherein the black grain diameter chosen is 10 μm
Rice aluminium oxide, nano silica partial size are 50nm or so, and rare earth element partial size is 60nm or so, and 22% is contained in rare earth element
Nano yttrium oxide, 31% nano-cerium oxide, 47% nano lanthanum oxide.
After aluminium oxide, silica, rare earth element and carbon black are mixed evenly, done under conditions of 80 DEG C
Dry, dry addition castor oil, starch, the rosin later completed is uniformly mixed, and is the lower briquet of 15MPa or so in pressure, blocking
Drying and moulding afterwards will completely cut off air in furnace, is warming up to 200 DEG C or so with 20 DEG C/min, after firing 20min, is passed through air with 30
DEG C/min is warming up to 400 DEG C, and after firing 30min, then 1000 DEG C of heat preservations firing 8h are warming up to 30 DEG C/min, after the completion of firing,
Cooling is taken out, processing is ground to 5-9 μm of spherical particle, obtains honeycomb compound.
The overlay film liquid of the present embodiment includes the raw material of following parts by weight: 70 parts of honeycomb compounds of use preparation,
200 parts of polyimide powders, 25 parts of boron oxides, 15 parts of maleic anhydrides, 20 parts of mica powders, 25 parts of dispersing agents, 15 parts of glycerol；
Polyimide powder is dissolved in 35wt% dichloromethane solution, maleic anhydride is added after mixing evenly, adds
Dispersing agent, mica powder, boron oxide add honeycomb compound, after 2000r/min mechanical stirring 30min with 2500r/
Min is again stirring for 12min mixing, stands 15min, is heated to 40 DEG C after stirring 20min with the frequency ultrasonic wave of 10kHz, heat preservation
Overlay film liquid is obtained after 60min.
Embodiment 4: aluminum alloy mould plate preparation one
The aluminum alloy mould plate of the present embodiment has used following raw material: 0.5 parts by weight of magnesium, 0.3 parts by weight of manganin, iron
0.1 parts by weight, 0.02 parts by weight of zinc, 0.06 parts by weight of nickel, 0.03 parts by weight of beryllium, silver-colored 0.13 parts by weight, 0.73 parts by weight of silicon, aluminium
98 parts by weight of ingot, copper content≤0.2% in the aluminium ingot, iron-content≤0.2%.
The preparation method of the aluminum alloy mould plate of the present embodiment, specific as follows:
Ingredient: by magnesium, manganin, iron, zinc, nickel, beryllium, silver, silicon, aluminium ingot carries out ingredient；
Melting: before non-blow-on, in test furnace after hydrogen content≤0.2mL/100g, after firing up is preheated to 200 DEG C,
Beryllium, silicon, iron, nickel, manganin are put into, then are warming up to 600 DEG C with 60 DEG C/min, silver, magnesium, aluminium is added after keeping the temperature 1h, continues
800 DEG C are warming up to, zinc is added after keeping the temperature 2h, keeps the temperature 1h；
Refining: in 780 DEG C of progress first time refinings, being passed through as nitrogen, flow 18L/min, pressure 0.3MPa, when
Between be 60min, after the completion, carry out second and refine, be cooled to 720 DEG C, be passed through the mixed gas of argon gas and nitrogen, the argon being passed through
Gas and nitrogen ratios=65%:35%, the flow velocity of mixed gas are 18L/min, pressure 0.3MPa, essence after the time is 20min
Refining is completed, and molten metal is obtained；
Die casting: after the molten metal that refining is completed stands 30min, carrying out die casting again after descum, cold with a thickness of 4mm
But hydraulic pressure is 0.25MPa, and temperature is 60 DEG C, flow 200m3/h；
Overlay film: when aluminum alloy mould plate is cooled to 250 DEG C, surface metal slag, overlay film liquid prepared by embodiment one are removed
It is uniformly sprayed at the aluminum alloy mould plate surface of die casting completion, uniformly second of sprinkling when being cooled to 100 DEG C, upon cooling to room temperature
Terminate after sprinkling third time, obtains being covered with the aluminum alloy mould plate of not mucous membrane；
Ageing treatment: aluminum alloy mould plate after cooling is heated to 100 DEG C, takes out and is put to room temperature after holding 10h；
Subsequent processing: aluminum alloy mould plate carries out edging, obtains aluminum alloy mould plate.
Embodiment 5: aluminum alloy mould plate preparation two
The aluminum alloy mould plate of the present embodiment has used following raw material: 0.53 parts by weight of magnesium, 0.5 parts by weight of manganin, iron
0.08 parts by weight, 0.02 parts by weight of zinc, 0.04 parts by weight of nickel, 0.04 parts by weight of beryllium, silver-colored 0.15 parts by weight, 0.7 parts by weight of silicon, aluminium
98 parts by weight of ingot, copper content≤0.2% in the aluminium ingot, iron-content≤0.2%.
The preparation method of the aluminum alloy mould plate of the present embodiment, it is specific as follows: ingredient: by magnesium, manganin, iron, zinc, nickel,
Beryllium, silver, silicon, aluminium ingot carry out ingredient；
Melting: before non-blow-on, in test furnace after hydrogen content≤0.2mL/100g, after firing up is preheated to 300 DEG C,
Beryllium, silicon, iron, nickel, manganin are put into, then are warming up to 600 DEG C with 50 DEG C/min, silver, magnesium, aluminium is added after keeping the temperature 1h, continues
900 DEG C are warming up to, zinc is added after keeping the temperature 3h, keeps the temperature 1h；
Refining: in 740 DEG C of progress first time refinings, being passed through as nitrogen, flow 20L/min, pressure 0.4MPa, when
Between be 50min, after the completion, carry out second and refine, be cooled to 720 DEG C, be passed through the mixed gas of argon gas and nitrogen, the argon being passed through
Gas and nitrogen ratios=65%:35%, the flow velocity of mixed gas are 15L/min, pressure 0.2MPa, essence after the time is 30min
Refining is completed, and molten metal is obtained；
Die casting: after the molten metal that refining is completed stands 20min, carrying out die casting again after descum, cold with a thickness of 5mm
But hydraulic pressure is 0.25MPa, and temperature is 30 DEG C, flow 220m3/h；
Overlay film: when aluminum alloy mould plate is cooled to 200 DEG C, surface metal slag, overlay film liquid prepared by embodiment one are removed
It is uniformly sprayed at the aluminum alloy mould plate surface of die casting completion, uniformly second of sprinkling when being cooled to 100 DEG C, upon cooling to room temperature
Terminate after sprinkling third time, obtains being covered with the aluminum alloy mould plate of not mucous membrane；
Ageing treatment: aluminum alloy mould plate after cooling is heated to 200 DEG C, takes out and is put to room temperature after holding 12h；
Subsequent processing: aluminum alloy mould plate carries out edging, obtains aluminum alloy mould plate.
Embodiment 6: aluminum alloy mould plate preparation three
The aluminum alloy mould plate of the present embodiment has used following raw material: 0.55 parts by weight of magnesium, 0.43 parts by weight of manganin, iron
0.05 parts by weight, 0.01 parts by weight of zinc, 0.06 parts by weight of nickel, 0.05 parts by weight of beryllium, silver-colored 0.1 parts by weight, 0.75 parts by weight of silicon, aluminium
97 parts by weight of ingot, copper content≤0.2% in the aluminium ingot, iron-content≤0.2%.
The preparation method of the aluminum alloy mould plate of the present embodiment, it is specific as follows: ingredient: by magnesium, manganin, iron, zinc, nickel,
Beryllium, silver, silicon, aluminium ingot carry out ingredient；
Melting: before non-blow-on, in test furnace after hydrogen content≤0.2mL/100g, after firing up is preheated to 300 DEG C,
Beryllium, silicon, iron, nickel, manganin are put into, then are warming up to 500 DEG C with 60 DEG C/min, silver, magnesium, aluminium is added after keeping the temperature 2h, continues
800 DEG C are warming up to, zinc is added after keeping the temperature 2h, keeps the temperature 2h；
Refining: in 780 DEG C of progress first time refinings, being passed through as nitrogen, flow 22L/min, pressure 0.4MPa, when
Between be 30min, after the completion, carry out second and refine, be cooled to 720 DEG C, be passed through the mixed gas of argon gas and nitrogen, the argon being passed through
Gas and nitrogen ratios=65%:35%, the flow velocity of mixed gas are 15L/min, pressure 0.2MPa, essence after the time is 20min
Refining is completed, and molten metal is obtained；
Die casting: after the molten metal that refining is completed stands 10min, die casting is carried out after descum again, with a thickness of 4mm, but
Hydraulic pressure is 0.3MPa, and temperature is 40 DEG C, flow 250m3/h；
Overlay film: when aluminum alloy mould plate is cooled to 150 DEG C, surface metal slag, overlay film liquid prepared by embodiment one are removed
It is uniformly sprayed at the aluminum alloy mould plate surface of die casting completion, uniformly second of sprinkling when being cooled to 70 DEG C, upon cooling to room temperature
Terminate after sprinkling third time, obtains being covered with the aluminum alloy mould plate of not mucous membrane；
Ageing treatment: aluminum alloy mould plate after cooling is heated to 100 DEG C, takes out and is put to room temperature after holding 12h；
Subsequent processing: aluminum alloy mould plate carries out edging, obtains aluminum alloy mould plate.
Thickness and test of bearing capacity, test knot are carried out to aluminum alloy mould plate prepared by embodiment 4, embodiment 5, embodiment 6
Fruit is as follows:
| Aluminum alloy mould plate | Thickness (contains film) | Test of bearing capacity |
| Embodiment 4 | 4mm | 35KN/m2 |
| Embodiment 5 | 4mm | 40KN/m2 |
| Embodiment 6 | 5mm | 48KN/m2 |
The aluminum alloy mould plate of overlay film prepared by embodiment 4, embodiment 5, embodiment 6 containing film thickness in 4-5mm, and carries
Power is respectively 35KN/m2、40KN/m2、48KN/m2, see, it can be seen that and in the case where relatively thin, aluminium alloy mould prepared by the present invention
Plate bearing capacity still with higher.
The above examples are only used to illustrate the technical scheme of the present invention and are not limiting, although referring to preferred embodiment to this hair
It is bright to be described in detail, those skilled in the art should understand that, it can modify to technical solution of the present invention
Or equivalent replacement should all cover without departing from the objective and range of technical solution of the present invention in claim of the invention
In range.Technology not described in detail in the present invention, shape, construction portion are well-known technique.
Claims (10)
1. a kind of aluminum alloy mould plate, which is characterized in that the aluminum alloy mould plate includes the raw material of following parts by weight: magnesium 0.5~
0.55 part, 0.3~0.5 part of manganin, 0.05~0.1 part of iron, 0.01~0.02 part of zinc, 0.04~0.06 part of nickel, beryllium 0.03
~0.05 part, silver-colored 0.1~0.15 part, 0.7~0.75 part of silicon, 97~98 parts of aluminium ingot, copper content≤0.2% in the aluminium ingot, contain
Iron≤0.2%, the aluminum alloy surface have one layer of not mucous membrane, and the aluminum alloy mould plate is with a thickness of 4.0-5.0mm, bearing capacity
For 30-50KN/m2。
2. a kind of aluminum alloy mould plate according to claim 1, which is characterized in that the aluminum alloy mould plate includes following weight
The raw material of number: 0.5 part of magnesium, 0.3 part of manganin, 0.1 part of iron, 0.02 part of zinc, 0.06 part of nickel, 0.03 part of beryllium, silver 0.13 part,
0.73 part of silicon, 98 parts of aluminium ingot, copper content≤0.2% in the aluminium ingot, iron-content≤0.2%.
3. a kind of preparation method of aluminum alloy mould plate according to claim 1 to 2, the preparation of the aluminum alloy mould plate
Method is as follows:
Ingredient: by magnesium, manganin, iron, zinc, nickel, beryllium, silver, silicon, aluminium ingot carries out ingredient；
Melting: before non-blow-on, in test furnace after hydrogen content≤0.2mL/100g, after firing up is preheated to 200-300 DEG C,
Beryllium, silicon, iron, nickel, manganin is added, then is warming up to 500-600 DEG C with 50-60 DEG C/min, after keeping the temperature 1-2h, be added silver, magnesium,
Aluminium after being continuously heating to 800-900 DEG C of heat preservation 2-3h, is added zinc and keeps the temperature 1-2h；
Refining: carrying out first time refining under the conditions of 740-780 DEG C of temperature, be passed through gas one in first time refining process, essence
The refining time is 30-60min, is then cooled to 700-720 DEG C and carries out second of refining, is passed through gas two when refining for the second time, essence
The refining time is 20-30min, and refining is completed, and obtains molten metal；
Die casting: after the molten metal that refining is obtained stands 10-30min, after descum, in cooling water pressure 0.25-0.3MPa, temperature
30-60 DEG C of degree, flow 200-250m3Die casting is carried out under/h condition；
Overlay film: for the aluminum alloy mould plate that die casting is completed under the conditions of 150-250 DEG C of temperature, spraying overlay film liquid carries out hot overlay film, cold
But, the aluminum alloy mould plate for being covered with not mucous membrane is obtained；
Ageing treatment: aluminum alloy mould plate after cooling is heated to 100-200 DEG C of holding 10-12h；
Subsequent processing: aluminum alloy mould plate carries out edging, obtains aluminum alloy mould plate.
4. a kind of preparation method of aluminum alloy mould plate according to claim 3, which is characterized in that in the refinement step,
The gas one being passed through is nitrogen, and being passed through flow is 18-22L/min, forms pressure 0.3-0.4MPa.
5. a kind of preparation method of aluminum alloy mould plate according to claim 3, which is characterized in that in the refinement step,
The gas two being passed through is the mixed gas of argon gas and nitrogen, the argon gas being passed through and nitrogen ratios=65%:35%, mixed gas
Flow velocity is 15-18L/min, pressure initiation 0.2-0.3MPa.
6. a kind of preparation method of aluminum alloy mould plate according to claim 3, which is characterized in that the aluminum alloy mould plate heat
Cover the concrete operations of not mucous membrane step are as follows: when aluminum alloy mould plate is cooled to 150-250 DEG C, surface metal slag is removed, by overlay film
Liquid is uniformly sprayed at the aluminum alloy mould plate surface of die casting completion, after being cooled to 70-100 DEG C, then uniformly second of sprinkling, work as cooling
Sprinkling third time when to room temperature.
7. a kind of preparation method of aluminum alloy mould plate according to claim 6, which is characterized in that the overlay film liquid include with
The raw material of lower parts by weight: 40-70 parts of honeycomb compounds, 150-200 parts of polyimide powders, 20-25 parts of boron oxides, 10-
15 parts of maleic anhydrides, 10-20 parts of mica powders, 20-25 parts of dispersing agents, 10-15 glycerol.
8. a kind of preparation method of aluminum alloy mould plate according to claim 7, which is characterized in that the preparation of the overlay film liquid
Method is as follows: polyimide powder being dissolved in dichloromethane solution, maleic anhydride is added after mixing evenly, adds dispersion
Agent, mica powder, boron oxide after mixing evenly, after 1500-2000r/min mechanical stirring 30-50min, it is multiple to add honeycomb
Object is closed, 10-15min is again stirring for 2000-2500r/min and is mixed, 10-15min is stood, with the frequency ultrasonic wave of 10-12kHz
After stirring 20-30min, it is heated to 40-50 DEG C, obtains overlay film liquid.
9. a kind of preparation method of aluminum alloy mould plate according to claim 8, which is characterized in that the honeycomb compound
Preparing raw material includes:
Nano aluminium oxide, nano silica, rare earth element, carbon black, rosin, starch, castor oil, the black grain diameter are 5-10
μm, nano aluminium oxide, nano silica partial size are 20-50nm, and rare earth element partial size is 30-60nm, the rare earth element
In for nano yttrium oxide, nano-cerium oxide, nano lanthanum oxide mixture, received containing 22% nano yttrium oxide, 31% in mixture
Rice cerium oxide, 47% nano lanthanum oxide.
10. a kind of preparation method of aluminum alloy mould plate according to claim 9, which is characterized in that the honeycomb is compound
Object preparation method the following steps are included:
By aluminium oxide, silica, rare earth element and carbon black according to weight ratio 1:1:(0.3-0.5): the ratio of (0.6-0.9) is mixed
It closes after mixing evenly, it is dry under conditions of 60-80 DEG C, castor oil, starch, rosin are added after dry completion and is uniformly mixed,
It is briquet under 10-15MPa in pressure, drying and moulding is warming up to 100-200 DEG C with 20 DEG C/min, air is completely cut off in furnace
20-30min is fired, then is passed through air and is warming up to 300-400 DEG C with 30 DEG C/min, after firing 30-40min, with 30 DEG C/min liter
8-15h is calcined in temperature to 900-1000 DEG C of heat preservation, and cooling post-processing is ground to 5-9 μm of spherical particle, obtains honeycomb compound.
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Application publication date: 20181211 |