CN107475763A - A kind of aluminum alloy mould plate and its processing method with self-lubricating film layer - Google Patents
A kind of aluminum alloy mould plate and its processing method with self-lubricating film layer Download PDFInfo
- Publication number
- CN107475763A CN107475763A CN201710696464.4A CN201710696464A CN107475763A CN 107475763 A CN107475763 A CN 107475763A CN 201710696464 A CN201710696464 A CN 201710696464A CN 107475763 A CN107475763 A CN 107475763A
- Authority
- CN
- China
- Prior art keywords
- aluminum alloy
- mould plate
- alloy mould
- film layer
- self
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/045—Anodisation of aluminium or alloys based thereon for forming AAO templates
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
- C25D11/04—Anodisation of aluminium or alloys based thereon
- C25D11/18—After-treatment, e.g. pore-sealing
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G9/00—Forming or shuttering elements for general use
- E04G9/02—Forming boards or similar elements
- E04G9/06—Forming boards or similar elements the form surface being of metal
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Architecture (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
The invention discloses a kind of aluminum alloy mould plate and its processing method with self-lubricating film layer, including aluminum alloy mould plate base material and the self-lubricating film layer for being formed at aluminum alloy mould plate substrate surface, the self-lubricating film layer contains CNT, nanometer polytetrafluoroethylcomposite and Nano-meter SiO_22, the thickness of the self-lubricating film layer is 40~60 μm.The present invention forms Al by anodic oxidation on aluminum alloy mould plate surface203/ polytetrafluoroethylene (PTFE) combined oxidation film layer, there is the function in self-lubricating in the presence of nanometer polytetrafluoroethylcomposite, and even film layer is fine and close, corrosion resistance is strong, modern hardness is strong, coefficient of friction is small, the corrosion of cement can be subjected to, reduce abrasion of the mixed mud to template in casting process, mixed mud is weak in the adhesiveness of template surface, it is easy to aluminum alloy mould plate and is separated on thing from pouring, the flatness for pouring wall is high, building aluminum alloy mould plate need to be only cleaned with water after use, a large amount of artificial and releasing agents need not be put into remove the cement being attached on building aluminum alloy mould plate.
Description
Technical field
The present invention relates to building template technical field, more particularly to a kind of aluminum alloy mould plate with self-lubricating film layer and its
Processing method.
Background technology
Building template is made up of panel and support system, and panel is the part for making concrete forming；Support system is firm
Positions of panels and the structure division for bearing upper load.For the relationship between quality of template to the quality of concrete works, key is chi
Very little accurate, assembling is firmly, piece is tight, is convenient to mount and dismount.Should be according to the form and feature of building structure from appropriate form
Template, good techno-economic effect could be obtained.
With the development of national economy and stepping up for living standards of the people, people are to inhabitation and the requirement of work-yard
Also improve constantly.Many national empirical evidences, it is the inexorable trend of economic growth and social progress.The progress of construction industry is not
It is perfect to require nothing more than quality, the function of building, and requires its attractive in appearance, environmentally friendly and harmless health etc..This requires to send out
Multi-functional and efficient building material and product are opened up, only in this way just adapts to the requirement of social progress.Use novel building material
Material and product, the function of building can be significantly improved, increase the usable floor area of building, improved shock resistance, be easy to machinery
Change construction and improve efficiency of construction, and construction cost can be reduced under square one.Cry of the people to New Building Materials
More and more higher.
Traditional three big former material templates can not meet the growing quality requirement of current building trade.First, most pass
The plank sheathing of system, relatively common is poplar template and pine template, and this template is comparatively relatively lighter, and cost is lower slightly, but
Its low intensity, it is non-watertight, easily go mouldy rotten, repeat usage is low, it is necessary to consume timber resources, is unfavorable for ecological environment and forest
The protection of resource；The shortcomings that Bamboo Formwork is also that repeat usage is low, and not recyclable.2nd, steel form, as the term suggests it is steel
, intensity is very big, it is necessary to consume a large amount of releasing agents, and construction speed is influenceed by weather, and concrete performance is very good after form removal
But preponderance, construction need plant equipment to assist, easily get rusty, and in concrete placement easily with concrete conglutination one
Rise, the demoulding is difficult, material of taking a lot of work.3rd, plastic formwork, it is not afraid of water, it is durable, but poor rigidity, flexible type, and cost are high.
On the development foundation of above-mentioned three big former material templates, aluminum alloy mould plate support system arises at the historic moment.Aluminum alloy mould plate
Support system technology, it is to be particularly the countries and regions such as Japan, Brazil, Hong Kong in the world to continue to develop, widely use in recent years
A kind of new type formwork support system.It is big from heavy and light, rigidity, and can control the outward appearance and engineering of concrete structure surface well
Progress.However, the problem of existing aluminum alloy mould plate exists there is also steel form, one is that the part being combined with concrete is easy
By concrete erosion, another problem is in concrete placement easily together with concrete conglutination, and the demoulding is difficult, is influenceed
The recycling of aluminum alloy mould plate.
The content of the invention
In view of this, it is an object of the invention to provide a kind of aluminum alloy mould plate with self-lubricating film layer, prior art is made
In aluminum alloy mould plate for building be not easy by during cement burn into form removal easily with cement depart from.
The present invention solves above-mentioned technical problem by following technological means：
A kind of aluminum alloy mould plate with self-lubricating film layer, including aluminum alloy mould plate base material and it is formed at aluminum alloy mould plate base
The self-lubricating film layer on material surface, the self-lubricating film layer contain CNT, nanometer polytetrafluoroethylcomposite and Al203, the self-lubricating
The thickness of film layer is 40~60 μm, and the static contact angle of the self-lubricating film layer is 162.8 °.
Present invention also offers a kind of processing method of the aluminum alloy mould plate with self-lubricating film layer, following step is specifically included
Suddenly：
1) impurity treatment of base material：First with fine sandpaper polish aluminum alloy mould plate base material surface, spent after the completion of polishing from
Sub- water rinses out the impurity of aluminum alloy mould plate substrate surface, then by after polishing aluminum alloy mould plate base material immerse NaOH and
Na3PO4Mixed solution in 5~10min, invade after bubble terminates, first with deionized water rinsing aluminum alloy mould plate 3~5min of base material, then
With drying for standby after 5~10min of ethanol solution flushing；
2) polishing of base material：The aluminum alloy mould plate base material handled through step 1 is immersed to 100~120 DEG C of polishing fluid
Middle polishing 10s, then rinse aluminum alloy mould plate base material repeatedly with deionized water, wherein polishing fluid includes 400~500g/L's
NaOH, 150~180g/L NaNO2, 30~40g/L NaF, 20~30g/L Na3PO4；
3) preparation of complex oxide film：Mixed acid electrolyte will be immersed through aluminum alloy mould plate base material of the step once processing
In, 1~2h of room temperature high-pressure composite anode oxide under 120V voltage, then rinsed repeatedly with deionized water, dry, obtain table
Face is covered with Al203The phosphoric acid of the aluminum alloy mould plate of/polytetrafluoroethylene (PTFE) complex oxide film, wherein mixed acid electrolyte including 3mL/L,
2g/L oxalic acid, 1g/L sodium tungstate, 1.5g/L propandiol butyl ether and 1.0~1.5mL/L 20% ptfe emulsion；
4) processing of micropore：The surface that step 3 is obtained is covered with Al203The aluminium alloy of/polytetrafluoroethylene (PTFE) complex oxide film
Template is immersed in deionized water, then carries out laser drill using nanosecond laser, the wherein pulsewidth of laser is 10ns, and wavelength is
1064nm, power are 6~10W, and repetition rate 20kHz, aluminum alloy mould plate base material is 15~30mm apart from the height of the water surface, is added
After the completion of work rear drying for standby is rinsed well with deionized water；
5) processing of CNT：Take CNT add 10 volumes concentration be 2.6mol/L salpeter solution in, with
Conflux 24h at 40 DEG C, is centrifuged after cooling, filters, dries, the carbon nanometer purified after being washed with deionized to neutrality
Pipe, the CNT of purifying is then taken, sequentially add the concentrated nitric acid of 10 times of volumes and the concentrated sulfuric acid of 30 times of volumes, ultrasonic wave disperses
Centrifuged after 5h, be then washed with deionized to neutrality, dry, obtain modified carbon nano-tube；
6) filling of micropore：By modified carbon nano-tube physical vaporous deposition by way of be filled into step 4 bore
Micropore, and be compacted, 1~3h is heat-treated at 320~330 DEG C, room temperature is naturally cooled to after the completion of heat treatment.
Further, the NaOH and Na in step 1)3PO4Mixed solution in, NaOH and Na3PO4Mol ratio be 5:1~
3:1。
Further, the NaOH and Na in step 1)3PO4Mixed solution temperature be 80~85 DEG C.
Further, the linear regulation in 30s of the oxidation voltage described in step 3 to pre-set value 120V, and remains to experiment
Terminate, peak current density is 4.0~6.0A/dm2。
Further, the power of laser is 6~8W in step 4), aluminum alloy mould plate base material apart from the water surface height for 20~
25mm。
Further, the carbon nanotube diameter in step 5) is 15~20nm, and length is 6~10nm.
Further, the frequency of the ultrasonic wave in step 5) is 32KHz, rate of dispersion 45r/s.
Beneficial effects of the present invention：
1. the present invention forms Al by anodic oxidation on aluminum alloy mould plate surface203/ polytetrafluoroethylene (PTFE) combined oxidation film layer,
There is the function in self-lubricating in the presence of nanometer polytetrafluoroethylcomposite, and even film layer is fine and close, corrosion resistance is strong, modern hardness
By force, coefficient of friction is small, can be subjected to the corrosion of cement, reduces abrasion of the mixed mud to template in casting process, mixed mud is in mould
The adhesiveness of plate surface is weak, is easy to aluminum alloy mould plate and is separated on thing from pouring, and it is high to pour the flatness of wall, only needs after use
Building aluminum alloy mould plate is cleaned with water, it is not necessary to which a large amount of artificial and releasing agents of input are attached to building aluminium alloy mould to remove
Cement on plate；
2. the Al that the present invention is prepared on aluminum alloy mould plate surface203The enterprising step of/polytetrafluoroethylene (PTFE) combined oxidation film layer is carried out
Filling-modified CNT is punched, easily slides or rotates between the cylindric stone black layer of CNT, has and is similar to stone
The greasy property of ink, CNT punching is filled into Al203Can further it be reduced in/polytetrafluoroethylene (PTFE) combined oxidation film layer
The coefficient of friction of film surface, improve the mechanical performance of film layer；
3. the surface of modified carbon nano-tube of the present invention has taken carboxyl and oh group, make CNT and Al203And poly- four
Interaction enhanced between PVF, and the dissociation of carbon nano tube surface acid ion increases the repulsive interaction between carbon pipe
By force, mutual winding degree substantially weakens, and significantly improves the dispersive property of carbon pipe, so as to prepare the carbon of finely dispersed stabilization
Pipe suspension, make the deposition of CNT more uniform, filling more dense uniform.
Embodiment
Below with reference to embodiment, the present invention is described in detail：
A kind of aluminum alloy mould plate with self-lubricating film layer, including aluminum alloy mould plate base material and it is formed at aluminum alloy mould plate base
The self-lubricating film layer on material surface, the self-lubricating film layer contain CNT, nanometer polytetrafluoroethylcomposite and Nano-meter SiO_22, it is described from
The thickness of lubricant film layer is 40~60 μm, and the static contact angle of the self-lubricating film layer is 162.8 °
The process embodiment one of aluminum alloy mould plate with self-lubricating film layer
First with the surface of fine sandpaper polishing aluminum alloy mould plate base material, aluminium alloy mould is rinsed out with deionized water after the completion of polishing
The impurity of plate substrate surface, it is 5 that the aluminum alloy mould plate base material after polishing then is immersed into mol ratio:1 NaOH and Na3PO4It is mixed
Close in solution, 5~10min is soaked under conditions of 80~85 DEG C, invade after bubble terminates, first with deionized water rinsing aluminum alloy mould plate
3~5min of base material, then dried after rinsing 5~10min with ethanol solution；Dry aluminum alloy mould plate base material is immersed 100~120
DEG C polishing fluid in polish 10s, then rinse aluminum alloy mould plate base material repeatedly with deionized water, wherein polishing fluid includes 400g/L
NaOH, 150g/L NaNO2, 30g/L NaF, 20g/L Na3PO4；Aluminum alloy mould plate base material after polishing is immersed into mixing
In acid electrolyte, in linear regulation in 30s to pre-set value 120V, the then room temperature high-pressure composite anode oxygen under 120V voltage
Change 1h, peak current density 4.0A/dm2, then rinsed repeatedly with deionized water, dry, wherein mixed acid electrolyte includes
3mL/L phosphoric acid, 2g/L oxalic acid, 1g/L sodium tungstate, 1.5g/L propandiol butyl ether and 1.0mL/L 20% polytetrafluoroethyl-ne
Alkene emulsion；Aluminum alloy mould plate after processing is immersed in deionized water, laser drill, wherein laser are carried out using nanosecond laser
Pulsewidth be 10ns, wavelength 1064nm, power 6W, repetition rate 20kHz, height of the aluminum alloy mould plate base material apart from the water surface
Spend for 15mm；Take CNT add 10 volumes concentration be 2.6mol/L salpeter solution in, it is cold with the 24h that confluxes at 40 DEG C
But centrifuge afterwards, filter, dry after being washed with deionized to neutrality, the CNT purified, then take purifying
CNT, sequentially add the concentrated nitric acid of 10 times of volumes and the concentrated sulfuric acid of 30 times of volumes, in frequency be 32KHz, rate of dispersion
Disperse 5h under 45r/s ultrasonic wave, centrifuge, be then washed with deionized to neutrality, dry, obtain modified carbon nano tube
Pipe；By a diameter of 15~20nm, modified carbon nano-tube that length is 6~10nm physical vaporous deposition by way of fill
Into micropore, and it is compacted, is heat-treated 1h at 320~330 DEG C, naturally cools to room temperature.
The process embodiment two of aluminum alloy mould plate with self-lubricating film layer
First with the surface of fine sandpaper polishing aluminum alloy mould plate base material, aluminium alloy mould is rinsed out with deionized water after the completion of polishing
The impurity of plate substrate surface, it is 3 that the aluminum alloy mould plate base material after polishing then is immersed into mol ratio:1 NaOH and Na3PO4It is mixed
Close in solution, 5~10min is soaked under conditions of 80~85 DEG C, invade after bubble terminates, first with deionized water rinsing aluminum alloy mould plate
3~5min of base material, then dried after rinsing 5~10min with ethanol solution；Dry aluminum alloy mould plate base material is immersed 100~120
DEG C polishing fluid in polish 10s, then rinse aluminum alloy mould plate base material repeatedly with deionized water, wherein polishing fluid includes 500g/L
NaOH, 180g/L NaNO2, 40g/L NaF, 30g/L Na3PO4；Aluminum alloy mould plate base material after polishing is immersed into mixing
In acid electrolyte, in linear regulation in 30s to pre-set value 120V, the then room temperature high-pressure composite anode oxygen under 120V voltage
Change 2h, peak current density 6.0A/dm2, then rinsed repeatedly with deionized water, dry, wherein mixed acid electrolyte includes
3mL/L phosphoric acid, 2g/L oxalic acid, 1g/L sodium tungstate, 1.5g/L propandiol butyl ether and 1.5mL/L 20% polytetrafluoroethyl-ne
Alkene emulsion；Aluminum alloy mould plate after processing is immersed in deionized water, laser drill, wherein laser are carried out using nanosecond laser
Pulsewidth be 10ns, wavelength 1064nm, power 10W, repetition rate 20kHz, aluminum alloy mould plate base material is apart from the water surface
Highly it is 30mm；It is and the 24h that confluxes at 40 DEG C in 2.6mol/L salpeter solution to take CNT to add the concentration of 10 volumes,
Centrifuged after cooling, filter, dry after being washed with deionized to neutrality, the CNT purified, then take purifying
CNT, sequentially add the concentrated nitric acid of 10 times of volumes and the concentrated sulfuric acid of 30 times of volumes, in frequency be 32KHz, rate of dispersion
Disperse 5h under 45r/s ultrasonic wave, centrifuge, centrifuge, be then washed with deionized to neutrality, dry, changed
Property CNT；By a diameter of 15~20nm, length is the physical vaporous deposition that 6~10nm modified carbon nano-tube passes through
Mode is filled into micropore, and is compacted, and is heat-treated 1h at 320~330 DEG C, is naturally cooled to room temperature.
The process embodiment three of aluminum alloy mould plate with self-lubricating film layer
First with the surface of fine sandpaper polishing aluminum alloy mould plate base material, aluminium alloy mould is rinsed out with deionized water after the completion of polishing
The impurity of plate substrate surface, it is 4 that the aluminum alloy mould plate base material after polishing then is immersed into mol ratio:1 NaOH and Na3PO4It is mixed
Close in solution, 5~10min is soaked under conditions of 80~85 DEG C, invade after bubble terminates, first with deionized water rinsing aluminum alloy mould plate
3~5min of base material, then dried after rinsing 5~10min with ethanol solution；Dry aluminum alloy mould plate base material is immersed 100~120
DEG C polishing fluid in polish 10s, then rinse aluminum alloy mould plate base material repeatedly with deionized water, wherein polishing fluid includes 450g/L
NaOH, 165g/L NaNO2, 35g/L NaF, 25g/L Na3PO4；Aluminum alloy mould plate base material after polishing is immersed into mixing
In acid electrolyte, in linear regulation in 30s to pre-set value 120V, the then room temperature high-pressure composite anode oxygen under 120V voltage
Change 1.5h, peak current density 5.0A/dm2, then rinsed repeatedly with deionized water, dry, wherein mixed acid electrolyte includes
3mL/L phosphoric acid, 2g/L oxalic acid, 1g/L sodium tungstate, 1.5g/L propandiol butyl ether and 1.3mL/L 20% polytetrafluoroethyl-ne
Alkene emulsion；Aluminum alloy mould plate after processing is immersed in deionized water, laser drill, wherein laser are carried out using nanosecond laser
Pulsewidth be 10ns, wavelength 1064nm, power 8W, repetition rate 20kHz, height of the aluminum alloy mould plate base material apart from the water surface
Spend for 20mm；Take CNT add 10 volumes concentration be 2.6mol/L salpeter solution in, it is cold with the 24h that confluxes at 40 DEG C
But centrifuge afterwards, filter, dry after being washed with deionized to neutrality, the CNT purified, then take purifying
CNT, sequentially add the concentrated nitric acid of 10 times of volumes and the concentrated sulfuric acid of 30 times of volumes, in frequency be 32KHz, rate of dispersion
Disperse 5h under 45r/s ultrasonic wave, centrifuge, centrifuge, be then washed with deionized to neutrality, dry, changed
Property CNT；By a diameter of 15~20nm, length is the physical vaporous deposition that 6~10nm modified carbon nano-tube passes through
Mode is filled into micropore, and is compacted, and is heat-treated 1h at 320~330 DEG C, is naturally cooled to room temperature.
The process embodiment four of aluminum alloy mould plate with self-lubricating film layer
First with the surface of fine sandpaper polishing aluminum alloy mould plate base material, aluminium alloy mould is rinsed out with deionized water after the completion of polishing
The impurity of plate substrate surface, it is 3.5 that the aluminum alloy mould plate base material after polishing then is immersed into mol ratio:1 NaOH and Na3PO4's
In mixed solution, 5~10min is soaked under conditions of 80~85 DEG C, is invaded after bubble terminates, first with deionized water rinsing aluminium alloy mould
Plate 3~5min of base material, then dried after rinsing 5~10min with ethanol solution；Dry aluminum alloy mould plate base material is immersed 100~
10s is polished in 120 DEG C of polishing fluid, then rinses aluminum alloy mould plate base material repeatedly with deionized water, wherein polishing fluid includes
470g/L NaOH, 170g/L NaNO2, 38g/L NaF, 23g/L Na3PO4；Aluminum alloy mould plate base material after polishing is soaked
Enter in mixed acid electrolyte, in linear regulation in 30s to pre-set value 120V, then room temperature high-pressure is compound under 120V voltage
Anodic oxidation 1.2h, peak current density 4.3A/dm2, then rinsed repeatedly with deionized water, dry, wherein mixed acid is electrolysed
Liquid 20% including 3mL/L phosphoric acid, 2g/L oxalic acid, 1g/L sodium tungstate, 1.5g/L propandiol butyl ether and 1.2mL/L is poly-
Tetrafluoroethene emulsion；Aluminum alloy mould plate after processing is immersed in deionized water, laser drill is carried out using nanosecond laser, its
The pulsewidth of middle laser is 10ns, and wavelength 1064nm, power 7W, repetition rate 20kHz, aluminum alloy mould plate base material is apart from water
The height in face is 25mm；The concentration for taking CNT 10 volumes of addition is in 2.6mol/L salpeter solution, with confluxing at 40 DEG C
24h, centrifuged after cooling, filter, dry, the CNT purified, Ran Houqu after being washed with deionized to neutrality
The CNT of purifying, the concentrated nitric acid of 10 times of volumes and the concentrated sulfuric acid of 30 times of volumes are sequentially added, be 32KHz in frequency, disperse
Disperse 5h under speed 45r/s ultrasonic wave, centrifuge, centrifuge, be then washed with deionized to neutrality, dry, obtain
To modified carbon nano-tube；By a diameter of 15~20nm, length is the physical vapour deposition (PVD) that 6~10nm modified carbon nano-tube passes through
The mode of method is filled into micropore, and is compacted, and is heat-treated 1h at 320~330 DEG C, is naturally cooled to room temperature.
The process embodiment five of aluminum alloy mould plate with self-lubricating film layer
The present embodiment is not in the Al on aluminum alloy mould plate surface203The enterprising step of/polytetrafluoroethylene (PTFE) combined oxidation film layer is carried out
Punch the processing of filling carbon nano-pipe.First with the surface of fine sandpaper polishing aluminum alloy mould plate base material, deionization is used after the completion of polishing
Water rinses out the impurity of aluminum alloy mould plate substrate surface, and it is 3.5 that the aluminum alloy mould plate base material after polishing then is immersed into mol ratio:
1 NaOH and Na3PO4Mixed solution in, 5~10min is soaked under conditions of 80~85 DEG C, is invaded after bubble terminates, first spend from
Sub- water rinses aluminum alloy mould plate 3~5min of base material, then is dried after rinsing 5~10min with ethanol solution；By dry aluminium alloy mould
Plate base material, which is immersed in 100~120 DEG C of polishing fluid, polishes 10s, then rinses aluminum alloy mould plate base material repeatedly with deionized water, its
Middle polishing fluid includes 470g/L NaOH, 170g/L NaNO2, 38g/L NaF, 23g/L Na3PO4；Aluminium after polishing is closed
Golden template base material is immersed in mixed acid electrolyte, in linear regulation in 30s to pre-set value 120V, then under 120V voltage
Room temperature high-pressure composite anode oxide 1.8h, peak current density 4.3A/dm2, then rinsed repeatedly with deionized water, dry, its
Middle mixed acid electrolyte include 3mL/L phosphoric acid, 2g/L oxalic acid, 1g/L sodium tungstate, 1.5g/L propandiol butyl ether and
1.2mL/L 20% ptfe emulsion.
The aluminum alloy mould plate with self-lubricating film layer that above-described embodiment one to embodiment five is process is carried out respectively
Thicknesses of layers (μm), film hardness (HV) and unit interval film layer wear extent (mg/min) are tested, and test is as shown in table 1：
Table 1
Analyzed from data above, embodiment one to example IV is in Al made from aluminum alloy mould plate surface203/ poly- four
After the enterprising step of PVF combined oxidation film layer punch the processing of filling carbon nano-pipe, the hardness of film layer 1000HV with
On, unit interval film layer wear extent is below 0.25mg/min, and coefficient of friction is below 0.1, with embodiment five not to being covered with
Al203The aluminum alloy mould plate surface of/polytetrafluoroethylene (PTFE) complex oxide film further carries out punching the processing of filling carbon nano-pipe
Film layer compare, hardness is significantly improved, and unit interval film layer wear extent and coefficient of friction are also further reduced.
Above-described embodiment one to example IV after capillary processing, aperture aperture (μm), hole depth (mm) to micropore, with
And pitch of holes (μm) is tested respectively, then detection passes through the template weight M1 after laser drill respectively, then passes through physics gas
Mutually after deposition modified carbon nano-tube, sense weight M2, then by M2 and M1 difference, measures filling out for modified carbon nano-tube respectively
Charge (mg/m2), test is as shown in table 2：
Table 2
Analyzed from data above, for laser power when 6~10W, the depth of water are in 15~30mm, the aperture of micropore is 92
More than μm, hole depth is between 25~35 μm, and for pitch of holes between 90~100 μm, the loading of modified carbon nano-tube is super
Cross 45mg/m2。
The present invention forms Al by anodic oxidation on aluminum alloy mould plate surface203/ polytetrafluoroethylene (PTFE) combined oxidation film layer,
There is the function in self-lubricating, and even film layer is fine and close in the presence of nanometer polytetrafluoroethylcomposite, corrosion resistance is strong, modern hardness
By force, coefficient of friction is small, can be subjected to the corrosion of cement, reduces abrasion of the mixed mud to template in casting process, mixed mud is in mould
The adhesiveness of plate surface is weak, is easy to aluminum alloy mould plate and is separated on thing from pouring, and it is high to pour the flatness of wall, only needs after use
Building aluminum alloy mould plate is cleaned with water, it is not necessary to which a large amount of artificial and releasing agents of input are attached to building aluminium alloy mould to remove
Cement on plate.
The above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although with reference to preferred embodiment to this hair
It is bright to be described in detail, it will be understood by those within the art that, technical scheme can be modified
Or equivalent substitution, without departing from the objective and scope of technical solution of the present invention, it all should cover the claim in the present invention
Among scope.The present invention be not described in detail technology, shape, construction part be known technology.
Claims (8)
- A kind of 1. aluminum alloy mould plate with self-lubricating film layer, it is characterised in that：Including aluminum alloy mould plate base material and it is formed at aluminium The self-lubricating film layer of alloy templates substrate surface, the self-lubricating film layer contain CNT, nanometer polytetrafluoroethylcomposite and Al2O3, The thickness of the self-lubricating film layer is 40~60 μm, and the static contact angle of the self-lubricating film layer is 162.8 °.
- A kind of 2. processing method of the aluminum alloy mould plate with self-lubricating film layer, it is characterised in that：Specifically include following steps：1) impurity treatment of base material：First with the surface of fine sandpaper polishing aluminum alloy mould plate base material, deionized water is used after the completion of polishing The impurity of aluminum alloy mould plate substrate surface is rinsed out, the aluminum alloy mould plate base material after polishing is then immersed into NaOH and Na3PO4's 5~10min in mixed solution, invade after bubble terminates, first with deionized water rinsing aluminum alloy mould plate 3~5min of base material, then use ethanol Solution rinses drying for standby after 5~10min；2) polishing of base material：The aluminum alloy mould plate base material handled through step 1 is immersed in 100~120 DEG C of polishing fluid and thrown Light 10s, then rinses aluminum alloy mould plate base material repeatedly with deionized water, wherein polishing fluid include 400~500g/L NaOH, 150~180g/L NaNO2, 30~40g/L NaF, 20~30g/L Na3PO4；3) preparation of complex oxide film：It will be immersed through aluminum alloy mould plate base material of the step once processing in mixed acid electrolyte, in 1~2h of room temperature high-pressure composite anode oxide under 120V voltage, is then rinsed repeatedly with deionized water, is dried, is obtained to surface and cover There is Al2O3The aluminum alloy mould plate of/polytetrafluoroethylene (PTFE) complex oxide film, wherein mixed acid electrolyte include 3mL/L phosphoric acid, 2g/L Oxalic acid, 1g/L sodium tungstate, 1.5g/L propandiol butyl ether and 1.0~1.5mL/L 20% ptfe emulsion；4) processing of micropore：The surface that step 3 is obtained is covered with Al2O3The aluminum alloy mould plate of/polytetrafluoroethylene (PTFE) complex oxide film Immerse in deionized water, then carry out laser drill using nanosecond laser, the wherein pulsewidth of laser is 10ns, and wavelength is 1064nm, power are 6~10W, and repetition rate 20kHz, aluminum alloy mould plate base material is 15~30mm apart from the height of the water surface, is added After the completion of work rear drying for standby is rinsed well with deionized water；5) processing of CNT：The concentration for taking CNT 10 volumes of addition is in 2.6mol/L salpeter solution, with 40 DEG C Under conflux 24h, centrifuged after cooling, filter, dry, the CNT purified after being washed with deionized to neutrality, Then the CNT of purifying is taken, sequentially adds the concentrated nitric acid of 10 times of volumes and the concentrated sulfuric acid of 30 times of volumes, ultrasonic wave disperses 5h After centrifuge, be then washed with deionized to neutrality, dry, obtain modified carbon nano-tube；6) filling of micropore：By modified carbon nano-tube physical vaporous deposition by way of be filled into step 4 bore it is micro- Hole, and be compacted, 1~3h is heat-treated at 320~330 DEG C, room temperature is naturally cooled to after the completion of heat treatment.
- A kind of 3. processing method of aluminum alloy mould plate with self-lubricating film layer according to claim 2, it is characterised in that： NaOH and Na described in step 1)3PO4Mixed solution in, NaOH and Na3PO4Mol ratio be 5:1~3:1.
- A kind of 4. processing method of aluminum alloy mould plate with self-lubricating film layer according to claim 2, it is characterised in that： NaOH and Na described in step 1)3PO4Mixed solution temperature be 80~85 DEG C.
- A kind of 5. processing method of aluminum alloy mould plate with self-lubricating film layer according to claim 2, it is characterised in that： Oxidation voltage described in the step 3) linear regulation in 30s to pre-set value 120V, and remains to experiment and terminated, peak point current Density is 4.0~6.0A/dm2。
- A kind of 6. processing method of aluminum alloy mould plate with self-lubricating film layer according to claim 2, it is characterised in that： The power of laser described in step 4) is 6~8W, and aluminum alloy mould plate base material is 20~25mm apart from the height of the water surface.
- A kind of 7. processing method of aluminum alloy mould plate with self-lubricating film layer according to claim 2, it is characterised in that： Carbon nanotube diameter described in step 5) is 15~20nm, and length is 6~10nm.
- A kind of 8. processing method of aluminum alloy mould plate with self-lubricating film layer according to claim 2, it is characterised in that： The frequency of ultrasonic wave described in step 5) is 32KHz, rate of dispersion 45r/s.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710696464.4A CN107475763B (en) | 2017-08-15 | 2017-08-15 | A kind of aluminum alloy mould plate and its processing method with self-lubricating film layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710696464.4A CN107475763B (en) | 2017-08-15 | 2017-08-15 | A kind of aluminum alloy mould plate and its processing method with self-lubricating film layer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107475763A true CN107475763A (en) | 2017-12-15 |
| CN107475763B CN107475763B (en) | 2019-02-22 |
Family
ID=60600498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710696464.4A Active CN107475763B (en) | 2017-08-15 | 2017-08-15 | A kind of aluminum alloy mould plate and its processing method with self-lubricating film layer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107475763B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109652835A (en) * | 2018-12-28 | 2019-04-19 | 重庆新久融科技有限公司 | A kind of easy mold release aluminum alloy mould plate and preparation method thereof |
| CN109703131A (en) * | 2018-11-14 | 2019-05-03 | 重庆新久融科技有限公司 | A kind of overlay film aluminum alloy mould plate and preparation method thereof that can be recycled |
| CN111074321A (en) * | 2019-12-10 | 2020-04-28 | 重庆新久融科技有限公司 | Preparation method of aluminum alloy template surface oxidation film |
| CN111809209A (en) * | 2020-07-22 | 2020-10-23 | 赤壁富祥盛科技有限公司 | Preparation method of aluminum alloy template surface oxidation film |
| CN111809862A (en) * | 2020-07-17 | 2020-10-23 | 赤壁富祥盛科技有限公司 | Aluminum alloy template processing method |
| CN113698650A (en) * | 2021-01-04 | 2021-11-26 | 重庆理工大学 | Forming process of plastic mobile phone rear cover |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1778473A1 (en) * | 2004-08-02 | 2007-05-02 | Universal Chemicals Technologies, Inc. | Electroless plating with nanometer particles |
| CN101307477A (en) * | 2008-01-25 | 2008-11-19 | 哈尔滨工业大学 | Method for preparing high-wear-resistant antifriction self-lubricating composite membrane layer on surface of aluminum alloy |
| CN101338446A (en) * | 2008-08-14 | 2009-01-07 | 苏州有色金属研究院有限公司 | Heat treatment process for aluminum alloy self-lubricating surface composite material |
| CN103981556A (en) * | 2014-05-19 | 2014-08-13 | 广东美芝制冷设备有限公司 | Electrolyte for hard-anodizing of aluminum alloys and preparation method of aluminum alloy hard self-lubricating coatings |
| CN204940842U (en) * | 2015-09-23 | 2016-01-06 | 惠州市森信工业有限公司 | A kind of building aluminum alloy mould plate with efficient rete |
| CN105220872A (en) * | 2015-09-23 | 2016-01-06 | 惠州市森信工业有限公司 | A kind of building aluminum alloy mould plate with efficient rete and preparation method thereof |
-
2017
- 2017-08-15 CN CN201710696464.4A patent/CN107475763B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1778473A1 (en) * | 2004-08-02 | 2007-05-02 | Universal Chemicals Technologies, Inc. | Electroless plating with nanometer particles |
| CN101307477A (en) * | 2008-01-25 | 2008-11-19 | 哈尔滨工业大学 | Method for preparing high-wear-resistant antifriction self-lubricating composite membrane layer on surface of aluminum alloy |
| CN101338446A (en) * | 2008-08-14 | 2009-01-07 | 苏州有色金属研究院有限公司 | Heat treatment process for aluminum alloy self-lubricating surface composite material |
| CN103981556A (en) * | 2014-05-19 | 2014-08-13 | 广东美芝制冷设备有限公司 | Electrolyte for hard-anodizing of aluminum alloys and preparation method of aluminum alloy hard self-lubricating coatings |
| CN204940842U (en) * | 2015-09-23 | 2016-01-06 | 惠州市森信工业有限公司 | A kind of building aluminum alloy mould plate with efficient rete |
| CN105220872A (en) * | 2015-09-23 | 2016-01-06 | 惠州市森信工业有限公司 | A kind of building aluminum alloy mould plate with efficient rete and preparation method thereof |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109703131A (en) * | 2018-11-14 | 2019-05-03 | 重庆新久融科技有限公司 | A kind of overlay film aluminum alloy mould plate and preparation method thereof that can be recycled |
| CN109703131B (en) * | 2018-11-14 | 2021-03-05 | 重庆新久融科技有限公司 | Recyclable film-coated aluminum alloy template and preparation method thereof |
| CN109652835A (en) * | 2018-12-28 | 2019-04-19 | 重庆新久融科技有限公司 | A kind of easy mold release aluminum alloy mould plate and preparation method thereof |
| CN111074321A (en) * | 2019-12-10 | 2020-04-28 | 重庆新久融科技有限公司 | Preparation method of aluminum alloy template surface oxidation film |
| CN111809862A (en) * | 2020-07-17 | 2020-10-23 | 赤壁富祥盛科技有限公司 | Aluminum alloy template processing method |
| CN111809209A (en) * | 2020-07-22 | 2020-10-23 | 赤壁富祥盛科技有限公司 | Preparation method of aluminum alloy template surface oxidation film |
| CN113698650A (en) * | 2021-01-04 | 2021-11-26 | 重庆理工大学 | Forming process of plastic mobile phone rear cover |
| CN113698650B (en) * | 2021-01-04 | 2022-10-21 | 重庆理工大学 | Forming process of plastic mobile phone rear cover |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107475763B (en) | 2019-02-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107475763B (en) | A kind of aluminum alloy mould plate and its processing method with self-lubricating film layer | |
| CN108384448B (en) | A kind of composite Nano corrosion-inhibiting coating of imitative clam shell feature and preparation method thereof | |
| CN103290406B (en) | Laser cladding in-situ synthesis ceramic phase reinforced Fe-base cladding layer and preparation method thereof | |
| CN109603209A (en) | A kind of super-hydrophobic or underwater superoleophobic reversible regulation method of oil-water separating net | |
| CN105239134A (en) | Method for improving corrosion resistance of magnesium alloy anode oxide film layer | |
| CN105855788A (en) | Welding process for repairing crack of ball milling iron casting | |
| Liu et al. | High-quality surface smoothening of laser powder bed fusion additive manufacturing AlSi10Mg via intermittent electrochemical polishing | |
| CN105714225A (en) | Method for obtaining high-density nanometer two crystals in zirconium materials for nuclear power | |
| CN109504992A (en) | A kind of environment protection electrolytic solution and application thereof | |
| Zhang et al. | Reinforcement study of anodizing treatment with various temperatures on aluminum substrates for stronger adhesive bonding with carbon fiber composites | |
| CN104151909B (en) | The production method of oiliness high-temperature resistant coating and application and titanium ingot | |
| CN105926015A (en) | Electrochemical surface hardening treatment process of aluminum alloy die casting | |
| CN104962916B (en) | A kind of fine ultrasonic machining device and method for etching auxiliary | |
| CN104372337A (en) | Ni-TiO2 nano coating and preparation method thereof | |
| CN104212947B (en) | A kind of carbon dioxide laser surface modification NEW TYPE OF COMPOSITE coating | |
| CN104907712B (en) | A kind of new method for increasing stainless steel laser punching depth | |
| CN106672901B (en) | A kind of preparation method of removable hydrogen source | |
| CN107057421B (en) | A kind of rebar surface nanosizing composite coating and the preparation method and application thereof | |
| CN102703886A (en) | Method for preparing magnesium alloy super-hydrophobic surface | |
| CN209438507U (en) | A kind of building form raw material mixing arrangement that practicability is high | |
| CN202482897U (en) | Concrete structure | |
| CN105252138B (en) | A kind of surface of pure aluminum processing method for aluminium/nickel diffusion connection | |
| CN207645601U (en) | A kind of aluminium sheet casting heat-storing sphere recycling mast-up | |
| CN103993310A (en) | Method for preparing Nb-base multielement powder fusion alloy coating on titanium metal surface | |
| CN206279233U (en) | A kind of oil cylinder, piston rod matrix material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |