CN101019742B - Making process of antiwear nonstick cooker - Google Patents
Making process of antiwear nonstick cooker Download PDFInfo
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- CN101019742B CN101019742B CN200710038349A CN200710038349A CN101019742B CN 101019742 B CN101019742 B CN 101019742B CN 200710038349 A CN200710038349 A CN 200710038349A CN 200710038349 A CN200710038349 A CN 200710038349A CN 101019742 B CN101019742 B CN 101019742B
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Abstract
The present invention is making process of antiwear nonstick cooker and belongs to the field of daily article making technology. The making process of antiwear nonstick cooker includes the following steps: forming, anode oxidation to form hard oxide layer, permeating, and pore sealing treatment. The antiwear nonstick cooker has the advantages of high nonstick performance, high hardness, high wearresistance and long service life. Besides, the cooker has fewer trend of generating oil smoke and easy cleaning.
Description
Technical field
The present invention relates to a kind of preparation method of cooker; Relate in particular to the preparation method of the non-sticking cooking utensils of a kind of aluminium of high abrasion and aluminium alloy; The manufacture technology field that belongs to articles for daily use.
Background technology
Cooker and people's life is closely bound up, and high-grade any cooker great majority are non-sticking cooking utensils.The common way of non-sticking cooking utensils is to spray non-viscous paint on matrix surface, through certain temperature the coating drying is covered on the surface of matrix then.Because coating is to be sprayed on the surface of matrix, so and the binding ability of matrix is limited, in order to increase the binding ability of coating and matrix, the method for sandblast that adopts before the application of coating that has makes the surface of matrix have certain roughness to increase the binding ability that surperficial contact area increases coating and matrix; What have adds adhesive in coating; All shorter service life by the non-sticking cooking utensils that above these methods are made, generally about 1~2 month; The non-sticking cooking utensils that has adds the anti-wear performance that metallic particles increases cooker in coating; These cookers in use are easy to be destroyed coating by other metal devices, make cooker lose not viscosity energy; Therefore the non-sticking cooking utensils of making by these class methods is difficult to be used on a large scale in life.
Chinese patent application (93102199.5) relates to method for surface treatment of aluminium pot; This method by in aluminium pot surface with thick silicon steel sand, steel ball and clipped wire through the nozzle impacting with high pressure, make irregular, the deep mixed concavo-convex matsurface of its surface generation; Making the hard anodizing epithelium with sulfuric acid, oxalic acid or mixed acid then handles; On the not plane surface that coats epithelium, spray the plain resin of turbid liquid fluorine then; Heating, drying then, last moulding; Though adopt this method can make aluminum pot have good not viscosity; But the non-stick pan coating that this method is made still is coated in the surface of oxide-film, can't bear the long-term high-intensity wearing and tearing of other ironwares such as spades, iron spoon and cutter, fork etc.; Though this method can increase some surface area with thick silicon steel sand, steel ball and clipped wire through the uneven surface that the nozzle impacting with high pressure causes on the surface of aluminum pot, there is any to improve service life to non-stick pan, but because coating still is coated in the surface of base material, therefore using after 1~2 month will coating shedding and lose not viscosity.
Summary of the invention
Viscosity can the relatively poor defective of impermanent, anti-wear energy to the present invention is directed to cooker that the method for prior art makes; A kind of preparation method of non-sticking cooking utensils of novel high abrasion is proposed; The cooker that utilizes this method to make not only has very strong not viscosity energy, and the hardness height, and wearability is good, long service life.
Above-mentioned technical problem of the present invention is implemented by the following technical programs: a kind of preparation method of non-sticking cooking utensils of high abrasion, and this method may further comprise the steps:
A, moulding: selecting aluminium or aluminum alloy plate materials for use is the cooker semi-finished product according to the shape machine-shaping of cooker; And it is carried out surface degreasing handle;
B, anode hardening oxidation: the cooker semi-finished product after above-mentioned surface degreasing handled are put into sulfuric acid solution, in temperature are to carry out anode hardening oxidation 50 minutes~90 minutes under-10 ℃~5 ℃ the condition;
C, infiltration: to be placed on temperature through the cooker semi-finished product behind the anode hardening oxidation be in 20 ℃~80 ℃ the sticking solution 5~20 minutes with above-mentioned, makes that the not viscoelastic element in the sticking solution infiltrates through in the hole of cooker surface of semi-finished;
D, sealing of hole are handled: with the above-mentioned non-sticking cooking utensils that carries out promptly getting after sealing of hole is handled high abrasion through the cooker semi-finished product after the infiltration processing.
It is the cooker semi-finished product that the present invention adopts aluminium or aluminum alloy plate materials to carry out machine-shaping according to the shape of various cookers (as: pot, basin, dish or the like); Then by the surface oil processing, anodic oxidation can make cooker surface generate to have oxide-film that porous has certain degree of hardness, thickness again as depicted in figs. 1 and 2, the oxide-film of the present invention's formation has looked like to take out the pencil of core as can be seen from Figure 2, they are oxide-films of opening shape, and the aperture size of film and the degree of depth in hole are come than being much smaller; Not viscoelastic element in the sticking solution can penetrate in the hole of oxide-film by opening and since some not viscoelastic element need pass through certain temperature-curable, just can manifest their not viscosity energy; So the temperature that adopts in impregnation step of the present invention is 20 ℃~90 ℃, and the speed difference of the not viscoelastic element of variable grain size infiltration, and in 5~20 minutes of the present invention clock times, most not viscoelastic element can penetrate in the hole of oxide-film, after above-mentioned not viscoelastic element penetrates in the hole of oxide-film, after the sealing of hole processing, viscoelastic element is not fixed in the hole, thereby can bear the long-term high-intensity wearing and tearing of other ironwares such as spades, iron spoon and cutter, fork etc.
In the preparation method of the non-sticking cooking utensils of above-mentioned high abrasion, the detailed process that the surface degreasing described in the steps A is handled is: it is that 50~90 ℃ of surface degreasing solution were handled 1~5 minute that the semi-finished product of cooker are put into temperature; The proportioning of described surface degreasing solution is: NaOH:5~6g/L; Na
2CO
3: 20~25g/L; Na
3PO
412H
2O:10~15g/L; All the other are water.Adopt this surface degreasing processing method can be with the greasy dirt Ex-all of cooker surface, in addition in order to prevent corrosion to cooker surface, and in surface degreasing solution, add ten phosphate dihydrate sodium, sodium carbonate as corrosion inhibiter, if but corrosion inhibiter adds too much, greasy dirt just can not Ex-all, the surface that oxidation is come out is just inhomogeneous, will influence the quality of cooker surface.
In the preparation method of the non-sticking cooking utensils of above-mentioned high abrasion, the concentration of the sulfuric acid solution described in the step B is 100g/L~260g/L.If sulfuric acid solution concentration is lower than 100g/L, oxide-film hardness is too poor; If sulfuric acid solution concentration is higher than 260g/L, oxide-film is just fine and close more, and the aperture of hole is just too little, and viscoelastic element just is not easy to penetrate in the hole of oxide-film and goes.
In the preparation method of the non-sticking cooking utensils of above-mentioned high abrasion, the used electric current of anodic oxidation is a DC current among the step B, and described current density is 2~4A/dm
2, be the oxide-film of 25~150 μ m through generating thickness after the anodized.If the thickness of oxide-film is lower than 25 μ m among the present invention, just very shallow when the oxide-film hole forms, easily destroyed after viscoelastic element does not penetrate into, the product of making does not like that just have not viscosity energy, and hardness is not high, and anti-wear performance is poor, and the cooker of making is just not long service life; And if the thickness of oxide-film is higher than 150 μ m, oxide-film is just finer and close like that, and the aperture of oxide-film hole is just too little, and viscoelastic element just is not difficult for entering into hole, though the cooker finished product that is made into like this has very strong anti-wear performance, viscosity can be just not relatively poor relatively.
In the preparation method of the non-sticking cooking utensils of above-mentioned high abrasion, the sticking solution described in the step C is tetrafluoroethene solution or hexafluoroethylene, and its concentration is 50%~80%.Not sticking solution such as tetrafluoroethene, hexafluoroethylene etc. that the present invention adopts, have not viscosity energy, the particulate of viscoelastic element is not smaller, penetrates into easily in the oxide-film, the concentration of sticking solution is lower than 50% or be higher than 80%, is unfavorable for that all the hole that viscoelastic element not enters into oxide-film goes.
In the preparation method of the non-sticking cooking utensils of above-mentioned high abrasion, the detailed process that sealing of hole described in the step D is handled is: the deionized water of the above-mentioned cooker semi-finished product of handling through infiltration being put into 95 ℃~100 ℃ was handled 30~50 minutes, or the closed container that the above-mentioned cooker semi-finished product of handling through infiltration are put into the steam that is equipped with 100 ℃~110 ℃ handled 30~50 minutes, or the above-mentioned cooker semi-finished product of handling through infiltration are put into 80 ℃~85 ℃ chemical nickel salting liquid handled 10~20 minutes.
In the preparation method of the non-sticking cooking utensils of above-mentioned high abrasion, the proportioning of described chemical nickel salting liquid is: nickelous sulfate: 4~5g/L; Sodium acetate: 5~6g/L; Boric acid: 5~6g/L, the pH value of described chemical nickel salting liquid are 4.5~5.5.No matter which type of method of employing is come sealing of hole, adopt above-mentioned hole-sealing technology to put in place by sealing of hole, thereby make that viscoelastic element is not easy to separate out in the hole of oxide-film.
Therefore, the preparation method of the non-sticking cooking utensils of high abrasion of the present invention is compared with prior art, has the following advantages:
1, the preparation method of the non-sticking cooking utensils of high abrasion of the present invention is a matrix material with aluminium and the aluminium alloy with good heat-conducting, handles the in use difficult oil smoke that produces of cooker that the back forms by moulding, anodic oxidation, infiltration and sealing of hole;
2, the cooker hardness of the preparation method of the non-sticking cooking utensils of high abrasion of the present invention formation after overmolding, anodic oxidation, infiltration and sealing of hole are handled can reach more than the HV400, the coefficient of friction of cooker surface is the end very, can use instruments such as spades, substantially can not wear and tear after the use, prolong the service life of cooker.
3, the oxide-film that forms in the preparation method manufacturing process of the non-sticking cooking utensils of high abrasion of the present invention is a perforated membrane, in micropore, permeate not viscoelastic element, this not viscoelastic element be to enter into the oxide-film hole, carrying out sealing of hole then handles the cooker be made into and has excellent permanent not viscosity energy, promptly uses spades, iron spoon and metal tools such as cutter, fork also can not glue long service life to viscoelastic element is not shoveled out in the hole.
4, oxide-film hardness height that forms in the preparation method manufacturing process of the non-sticking cooking utensils of high abrasion of the present invention and oxide-film technology followability are good, geometry regardless of cooker itself, can both be by uniform oxidation, uniformly by not adhesive material infiltration, uniform sealing of hole, viscoelastic element can both not be imbedded in the oxide-film the inside uniformly, adhesion is very good, and the cooker that is made cleans easily.
Description of drawings
Fig. 1 is the electron micrograph of the oxide-film of preparation method formation of the present invention;
Fig. 2 is the structural representation of the oxide-film of preparation method formation of the present invention.
The specific embodiment
Below by embodiment, technical scheme of the present invention is described in further detail; But the present invention is not limited to these embodiment.
Embodiment 1: the non-stick pan of making high abrasion
A, moulding: selecting thickness for use is that the aluminium alloy plate of 3mm is pot semi-finished product according to the shape machine-shaping of pot, then the pot semi-finished product is invaded temperature and be to carry out surface degreasing in 80 ℃ the surface degreasing solution and handled 3 minutes; The proportioning of described surface degreasing solution is: NaOH:5g/L; Na
2CO
3: 25g/L; Na
3PO
412H
2O:10g/L; All the other are water.
B, anodic oxidation: putting into the anode supply that concentration is the 180g/L sulfuric acid solution with above-mentioned through the pot semi-finished product after the surface degreasing processing, is 2A/dm in current density
2Direct current under, be to carry out anodized 90min under 5 ℃ the condition in temperature, form and have the oxide-film that hole thickness is 25~150 μ m.
C, infiltration: to be placed on temperature through anodized pot semi-finished product be 80 ℃ with above-mentioned, and concentration is to place 5 minutes in 80% the tetrafluoroethene solution, and allowing not, the viscoelastic element tetrafluoroethene fully infiltrates through in the hole of oxide-film;
D, sealing of hole handle: it is in 95 ℃ the deionized water behind the 50min of sealing of hole place that the above-mentioned pot semi-finished product of handling through infiltration are placed on temperature, promptly gets the non-stick pan of high abrasion.
Non-stick pan to the above-mentioned high abrasion that is made detects at abrasion resistance properties, service life and the hardness wear-resisting tester of non-stick pan in standard:
Concrete testing process is: earlier pot is cleaned with clear water, fried in shallow oil " sun egg " under any oil condition not adding, egg is easy to be shoveled out by scoop.Add the 1kg counterweight after the cooling, beneath pad 3M scouring pad grinds 50 times back and forth, carries out the fried egg test of non-stick pan then, and egg is easy to be shoveled out by scoop.
Comparative example 1: existing common non-stick pan, it is carried out in same experiment in abrasion resistance properties, service life and hardness: earlier pot is cleaned with clear water, fried in shallow oil " sun egg " under any oil condition not adding, egg is easy to be shoveled out by scoop.Add the 1kg counterweight after the cooling, beneath pad 3M scouring pad grinds 50 times back and forth, carries out the fried egg test of non-stick pan then, finds that egg is bonded on the pot, and very difficult shovel comes out.
Table 1 is the non-stick pan of high abrasion of embodiment 1 and the comparison of common non-stick pan on performance of comparative example 1
Table 1: the common non-stick pan performance of the non-stick pan of high abrasion of the present invention and comparative example 1 relatively
As can be seen from Table 1, the non-stick pan of the high abrasion that the non-sticking cooking utensils preparation method by high abrasion of the present invention is made not only has very strong not viscosity energy, and the hardness height, and wearability is good.
Embodiment 2: the not sticking dish of making high abrasion
A, moulding: selecting thickness for use is that the aluminium sheet of 4mm is the dish semi-finished product according to the shape machine-shaping of dish, and will coiling semi-finished product then, to invade temperature be to carry out the surface degreasing place 5 minutes in 50 ℃ the surface degreasing solution; The proportioning of described surface degreasing solution is: NaOH:6g/L; Na
2CO
3: 20g/L; Na
3PO
412H
2O:15g/L; All the other are water.
B, anodic oxidation: putting into the anode that concentration is 180g/L sulfuric acid solution power supply with above-mentioned through the dish semi-finished product after the surface degreasing processing, is 3A/dm in current density
2Direct current under, be to carry out anodized 70min under 0 ℃ the condition in temperature, form and have the oxide-film that hole thickness is 25~150 μ m.
C, infiltration: to be placed on temperature through anodized dish semi-finished product be 50 ℃ with above-mentioned, and concentration is to place 10 minutes in 60% the hexafluoroethylene solution, and allowing not, the viscoelastic element hexafluoroethylene fully infiltrates through in the hole of oxide-film;
D, sealing of hole processing: after the above-mentioned dish semi-finished product of handling through infiltration being placed the closed container sealing of hole processing 30min of the steam that is equipped with 110 ℃, promptly get the sticking dish of high abrasion.
Embodiment 3: the not sticking basin of making high abrasion
A, moulding: selecting thickness for use is that the machine-shaping of 3.5mm aluminium flake is the basin semi-finished product, then the basin semi-finished product is carried out surface degreasing and handles; Then the basin semi-finished product are immersed in temperature and are and carry out surface degreasing in 90 ℃ the surface degreasing solution and handled 1 minute; The proportioning of described surface degreasing solution is: NaOH:5g/L; Na
2CO
3: 22g/L; Na
3PO
412H
2O:12g/L; All the other are water.
B, anodic oxidation: putting into the anode that concentration is 220g/L sulfuric acid solution power supply with above-mentioned through the basin semi-finished product after the surface degreasing processing, is 4A/dm in current density
2Dc source,, form and have the oxide-film that hole thickness is 25~150 μ m for carrying out anodized 50min under-10 ℃ the condition in temperature.
C, infiltration: to be placed on temperature through anodized basin semi-finished product be 20 ℃ with above-mentioned, and concentration is to place 20 minutes in 50% the tetrafluoroethene solution, and allowing not, the viscoelastic element tetrafluoroethene fully infiltrates through in the hole of oxide-film;
D, sealing of hole are handled: the above-mentioned basin semi-finished product of handling through infiltration are placed on proportioning is: nickelous sulfate: 4~5g/L; Sodium acetate: 5~6g/L; The pH value of boric acid: 5~6g/L be 4.5~5.5 chemical nickel salting liquids in temperature be under 80 ℃~85 ℃ the condition sealing of hole handle promptly get high abrasion in 10~20 minutes do not glue basin.
Specific embodiment described in the present invention only is that the present invention's spirit is illustrated.The technical staff of the technical field of the invention can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present invention or surmount the defined scope of appended claims.
Although the present invention has been made detailed explanation and has quoted some instantiations as proof, to those skilled in the art, only otherwise leave that the spirit and scope of the present invention can be done various variations or correction is obvious.
Claims (6)
1. the preparation method of the non-sticking cooking utensils of a high abrasion, this method may further comprise the steps:
A, moulding: selecting aluminium or aluminum alloy plate materials for use is the cooker semi-finished product according to the shape machine-shaping of cooker; And it is carried out surface degreasing handle;
B, anode hardening oxidation: the cooker semi-finished product after above-mentioned surface degreasing handled are put into sulfuric acid solution, in temperature are to carry out anode hardening oxidation 50 minutes~90 minutes under-10 ℃~5 ℃ the condition;
C, infiltration: to be placed on temperature through the cooker semi-finished product behind the anode hardening oxidation be in 20 ℃~80 ℃ the sticking solution 5~20 minutes with above-mentioned, makes that the not viscoelastic element in the sticking solution infiltrates through in the hole of cooker surface of semi-finished;
D, sealing of hole are handled: with the above-mentioned non-sticking cooking utensils that carries out promptly getting after sealing of hole is handled high abrasion through the cooker semi-finished product after the infiltration processing, the detailed process that described sealing of hole is handled is: the deionized water of the above-mentioned cooker semi-finished product of handling through infiltration being put into 95 ℃~100 ℃ was handled 30~50 minutes, or the closed container that the above-mentioned cooker semi-finished product of handling through infiltration are put into the steam that is equipped with 100 ℃~110 ℃ handled 30~50 minutes, or the above-mentioned cooker semi-finished product of handling through infiltration are put into 80 ℃~85 ℃ chemical nickel salting liquid handled 10~20 minutes.
2. the preparation method of the non-sticking cooking utensils of high abrasion according to claim 1 is characterized in that, the detailed process that the surface degreasing described in the steps A is handled is: it is that 50~90 ℃ of surface degreasing solution were handled 1~5 minute that the semi-finished product of cooker are put into temperature; The proportioning of described surface degreasing solution is: NaOH:5~6g/L; Na
2CO
3: 20~25g/L; Na
3PO
412H
2O:10~15g/L; All the other are water.
3. the preparation method of the non-sticking cooking utensils of high abrasion according to claim 1 and 2 is characterized in that, the concentration of the sulfuric acid solution described in the step B is 100g/L~260g/L.
4. the preparation method of the non-sticking cooking utensils of high abrasion according to claim 1 and 2 is characterized in that, the used electric current of anodic oxidation is a DC current among the step B, and described current density is 2~4A/dm
2, be the oxide-film of 25~150 μ m through generating thickness after the anodized.
5. the preparation method of the non-sticking cooking utensils of high abrasion according to claim 1 and 2 is characterized in that, the not sticking solution described in the step C is tetrafluoroethene solution or hexafluoroethylene solution, and its concentration is 50%~80%.
6. the preparation method of the non-sticking cooking utensils of high abrasion according to claim 1 is characterized in that, the proportioning of described chemical nickel salting liquid is: nickelous sulfate: 4~5g/L; Sodium acetate: 5~6g/L; Boric acid: 5~6g/L, the pH value of described chemical nickel salting liquid are 4.5~5.5.
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CN103960955B (en) * | 2013-01-25 | 2016-08-10 | 印栋伦 | Non-stick pan |
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CN108677130A (en) * | 2018-04-27 | 2018-10-19 | 东莞市慧淳金属制品有限公司 | A kind of processing method for aluminium alloy face layer |
CN111020665B (en) * | 2019-12-17 | 2021-03-02 | 江门市安诺特炊具制造有限公司 | Pretreatment process for spraying ceramic non-stick coating on aluminum alloy cooker |
CN111334834B (en) * | 2020-03-11 | 2021-03-19 | 梁世花 | Method for making oleophylic non-stick cooking utensils |
CN114129060B (en) * | 2021-12-17 | 2023-05-16 | 武汉苏泊尔炊具有限公司 | Cooker and method for manufacturing the same |
CN115286936B (en) * | 2022-06-29 | 2023-07-25 | 武汉苏泊尔炊具有限公司 | Amorphous non-stick material, amorphous non-stick coating and method for manufacturing amorphous non-stick coating |
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