CN103815769B - Titanium pot at the bottom of a kind of clad aluminum and preparation method thereof - Google Patents

Titanium pot at the bottom of a kind of clad aluminum and preparation method thereof Download PDF

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Publication number
CN103815769B
CN103815769B CN201410079777.1A CN201410079777A CN103815769B CN 103815769 B CN103815769 B CN 103815769B CN 201410079777 A CN201410079777 A CN 201410079777A CN 103815769 B CN103815769 B CN 103815769B
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China
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pan
pot
titanium pot
titanium
clad aluminum
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CN103815769A (en
Inventor
吕世雄
徐永强
郑祖金
黄永宪
曲杰
王龙江
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Harbin Institute of Technology
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Harbin Institute of Technology
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Abstract

The present invention discloses titanium pot at the bottom of a kind of clad aluminum and preparation method thereof, and method is as follows: enough fine aluminiums are put into crucible, puts into stove subsequently and is heated to together and is incubated to temperature of aluminum liquid homogenising; Titanium pot acetone is cleaned up, and is fixed in nonmetal fixture cover, titanium pot is inverted on insulator foot fixing, at the aluminium base brazing flux of the bottom of a pan external coating together with fixture cover; In the bottom of a pan, positive and negative passes into argon gas protection, afterwards by the plate-like high-frequency induction heating coil electricity in insulator foot, carries out preheating to the bottom of a pan; Take out crucible, scrape off the oxide-film of aluminium liquid surface attachment, it is cast in equably on the inverted titanium pot the bottom of a pan, makes the bottom of a pan to be formed aluminium liquid layer, insulator foot applies mechanical oscillation; Coil electricity electric current decay gradually until power-off, after aluminium liquid solidifies and cools, stops logical argon shield.The titanium pan utilizing this method to prepare has that thermal conductivity is good, the advantage such as even of conducting heat, the problem such as not easily occur sticky pot when cooking vegetable, be charred.

Description

Titanium pot at the bottom of a kind of clad aluminum and preparation method thereof
Technical field
The present invention relates to welding technology field, be specially titanium pot at the bottom of a kind of clad aluminum and preparation method thereof.
Background technology
At present, the pan that people use in daily life, common material has iron pan, aluminum pot, stainless-steel pan or other alloy pots etc.Generally speaking, irony pan is the pans that people's tradition uses, though experience and scientific research prove that it is useful or do not have much harm to human body, heavier, oxidizablely to get rusty, clean very difficult, and be easy to damage, service life is short.Aluminium matter pan is lightweight, heat conduction fast, but wears no resistance, and when meeting acid, alkaline stronger food, can be oxidized and discharge oxidation material.Stainless steel pan is one of acceptant product of current consumer, and its advantage is antiacid caustic corrosion, and high temperature resistant, not oxidizable, intensity is high, but due to heat conduction uneven, the problem such as easily produce sticky pot, be burned.In order to improve this problem, composite pan bottom stainless-steel pan is widely used.But its density is comparatively large, heavier-weight, for the cook holding pot operation for a long time, shoulder and wrist are all strained excessively, easily suffer from the occupational disease of aching.As everyone knows, titanium material has lightweight, and specific strength is high, the advantages such as corrosion resistance by force, not oxidizable, wearability is good, compare iron pan or the stainless-steel pan of same size, about the weight of titanium pot wants light half, this is for very favorable beyond doubt the cook that need hold pot operation for a long time.But the heat conduction of titanium pot is uneven, the situation easily occur crispy rice, being charred.A literary composition just refer to the problem using titanium pot to there is heating inequality " to use the impression of titanium pot " in " Ti industry progress ", cook is needed constantly to adjust the duration and degree of heating when fried rice, fried flour, cooking, aromatic to ensure the taste product of food, but what reduce restaurant undoubtedly cooks efficiency, and constantly the adjustment duration and degree of heating by affect cook long-term cook custom.Therefore wish to develop light weight, not sticky titanium pot for dining room.Based on aluminium, there is the advantages such as lightweight, heat conduction is fast, prepare a kind of titanium pot had at the bottom of clad aluminum and can solve above-mentioned titanium pot easily sticky pot, the problem that is charred, and the pot body that cost will manufacture lower than direct titanium aluminum composite plate.
Summary of the invention
The object of the present invention is to provide titanium pot at the bottom of a kind of clad aluminum and preparation method thereof, solve the problem that current single employing titanium pot easily glues pot, is charred.
This method is realized by following technical process:
1. a preparation method for the titanium pot at the bottom of clad aluminum, is realized by following technical process:
(1), by enough fine aluminiums put into ceramic crucible, put into stove subsequently and be heated to 700 DEG C-850 DEG C together and be incubated to temperature of aluminum liquid homogenising;
(2), by titanium pot acetone clean up, subsequently titanium pot is fixed in nonmetal fixture cover, titanium pot is inverted on insulator foot fixing, at the aluminium base brazing flux of the bottom of a pan surface uniform brushing one deck together with nonmetal fixture cover;
(3), pass into enough argon gas at the bottom of a pan positive and negative and protect, afterwards by the plate-like high-frequency induction heating coil electricity in insulator foot, preheating is carried out to the bottom of a pan;
(4), take out ceramic crucible, scrape off the oxide-film of aluminium liquid surface attachment, it is cast in equably on the inverted titanium pot the bottom of a pan, make the bottom of a pan to be formed certain thickness aluminium liquid layer, insulator foot applies mechanical oscillation and promotes the flowing of aluminium liquid on the bottom of a pan;
(5) decay coil electricity electric current, gradually until power-off, after aluminium liquid solidifies and cools, stop logical argon shield.
The present invention also has following technical characteristic:
1, described fine aluminium liquid or be LF21 alumal liquid.
2, described aluminium base brazing flux is QJ201, or is Nocolok brazing flux.
The high-frequency induction heating coil heats frequency of 3, described employing is: 20KHz ~ 100KHz.
4, described mechanical oscillation frequencies scope is 20Hz-30Hz, and mechanical oscillation are for entering the flowing of aluminium liquid on the bottom of a pan and sprawling.
5, the titanium pot at the bottom of a kind of clad aluminum that obtains of method as described above.
Invention effect and advantage:
1. the titanium pan utilizing this method to prepare has that thermal conductivity is good, the advantage such as even of conducting heat, the problem such as not easily occur sticky pot when cooking vegetable, be charred.
2. adopt mode certain thickness aluminium lamination of deposition on the titanium the bottom of a pan of cast aluminum liquid, technique is simple.
3., under the condition of radio-frequency preheating and argon shield, realize metallurgical binding between the titanium pot the bottom of a pan and aluminium liquid, bond strength is high, composite base difficult drop-off or cracking.
4. the mechanical oscillation on the electromagnetic force utilizing high-frequency induction to produce and insulator foot promote the flowing of aluminium liquid on the bottom of a pan, and aluminium liquid is sprawled evenly.
5. aluminium lamination heat conduction is good, and the titanium pot at the bottom of clad aluminum can stand long-time heating.
6. the titanium pot lighter in weight at the bottom of clad aluminum, is beneficial to and holds pot operation for a long time, reduce the strain to wrist and shoulder.
Accompanying drawing explanation
Fig. 1 is that titanium pot cast aluminum liquid prepares composite pan bottom process schematic;
Fig. 2 is I position amplification view in Fig. 1;
Wherein, 1, nonmetal fixture cover, 2, aluminium liquid layer, 3, titanium pot, 4, disc plane heater coil, 5, insulator foot.
Detailed description of the invention
Embodiment 1
A preparation method for titanium pot at the bottom of clad aluminum, is realized by following technical process:
(1), by enough fine aluminiums put into ceramic crucible, put into Muffle furnace subsequently and be heated to 700 DEG C-850 DEG C together and be incubated to temperature of aluminum liquid homogenising;
(2), by titanium pot acetone clean up, subsequently titanium pot 3 is fixed in nonmetal fixture cover 1, titanium pot 3 is inverted on insulator foot 5 fixing, at the aluminium base brazing flux of the bottom of a pan surface uniform brushing one deck together with nonmetal fixture cover 1;
(3), pass into enough argon gas at the bottom of a pan positive and negative and protect, afterwards the plate-like high-frequency induction heating coil 4 in insulator foot 5 is energized, preheating is carried out to the bottom of a pan;
(4), ceramic crucible is taken out, scrape off the oxide-film of aluminium liquid surface attachment, it is cast in equably on the inverted titanium pot the bottom of a pan, makes the bottom of a pan to be formed certain thickness aluminium liquid layer 2, insulator foot 5 applies mechanical oscillation and promotes the flowing of aluminium liquid on the bottom of a pan;
(5) decay coil electricity electric current, gradually until power-off, after aluminium liquid solidifies and cools, stop logical argon shield.
Embodiment 2
Enough fine aluminiums are put into ceramic crucible, is positioned in Muffle furnace that to be heated to 700 DEG C of insulations 1 little of temperature of aluminum liquid homogenising.Be fixed in nonmetal fixture cover after the titanium pot acetone of diameter 150mm being cleaned simultaneously; it being jointly inverted subsequently is fixed on insulator foot; at the aluminium base brazing flux QJ201 of the bottom of a pan surface uniform brushing one deck, and all pass into enough positions, the argon shield the bottom of a pan at the bottom of a pan positive and negative.The plate-like radio-frequency induction coil be opposite in insulator foot carries out electrified regulation, and heating frequency 20KHz carries out preheating to the titanium pot the bottom of a pan.Take out crucible; scrape off the oxide-film on aluminium liquid surface; subsequently the aluminium liquid of fusing is evenly cast in the titanium pot the bottom of a pan to make the bottom of a pan to be formed the thick aluminium liquid layer of 1mm; the flowing that the mechanical oscillation that insulator foot applies 20Hz promote aluminium liquid on the bottom of a pan and sprawling; electrical current decay gradually until last power-off; after aluminium liquid solidifies gradually and cools, stop argon shield, after dismounting, suitable dimension is machined to composite pan bottom, namely obtain the titanium pot of composite pan bottom.
Embodiment 3
Enough fine aluminiums are put into ceramic crucible, is positioned in Muffle furnace that to be heated to 750 DEG C of insulations 1 little of temperature of aluminum liquid homogenising.Be fixed in its cover of nonmetal folder after the titanium pot acetone of diameter 250mm being cleaned simultaneously; be inverted subsequently and be fixed on insulator foot; at the bottom of a pan surface uniform brushing one deck Nocolok brazing flux, and all pass into enough positions, the argon shield the bottom of a pan at the bottom of a pan positive and negative.The plate-like radio-frequency induction coil be opposite in insulator foot carries out electrified regulation, and heating frequency 30KHz carries out preheating to the titanium pot the bottom of a pan.Take out crucible; scrape off the oxide-film on aluminium liquid surface; subsequently the aluminium liquid of fusing is evenly cast in the titanium pot the bottom of a pan to make the bottom of a pan to be formed the thick aluminium liquid layer of 1.5mm; the flowing that the mechanical oscillation that insulator foot applies 20Hz promote aluminium liquid on the bottom of a pan and sprawling; electrical current decay gradually until last power-off; argon shield is stopped after aluminium liquid solidifies gradually and cools; after dismounting, suitable dimension be machined to composite pan bottom and carry out electrochemical oxidation dyeing process, namely obtaining the titanium pot of composite pan bottom attractive in appearance.
Embodiment 4
Enough LF21 alumals are put into ceramic crucible, is positioned in Muffle furnace that to be heated to 800 DEG C of insulations 1 little of alumal liquid temp homogenising.Be fixed in nonmetal fixture cover after the titanium pot acetone of diameter 350mm being cleaned simultaneously; be inverted subsequently and be fixed on insulator foot; at the bottom of a pan surface uniform brushing one deck Nocolok brazing flux, and all pass into enough positions, the argon shield the bottom of a pan at the bottom of a pan positive and negative.The plate-like radio-frequency induction coil be opposite in insulator foot carries out electrified regulation, and heating frequency 50KHz carries out preheating to the titanium pot the bottom of a pan.Take out crucible; scrape off the oxide-film on alumal liquid surface; subsequently the alumal liquid of fusing is evenly cast in the titanium pot the bottom of a pan to make the bottom of a pan to be formed the thick alumal liquid layer of 2mm; the flowing that the mechanical oscillation that insulator foot applies 25Hz promote alumal liquid on the bottom of a pan and sprawling; electrical current decay gradually until last power-off; argon shield is stopped after aluminium liquid solidifies gradually and cools; after dismounting, suitable dimension be machined to composite pan bottom and carry out electrochemical oxidation dyeing process, namely obtaining the titanium pot of composite pan bottom attractive in appearance.
Embodiment 5
Enough fine aluminiums are put into ceramic crucible, is positioned in Muffle furnace that to be heated to 750 DEG C of insulations 1 little of temperature of aluminum liquid homogenising.Be fixed on after the titanium pot acetone of diameter 450mm being cleaned in nonmetal fixture cover simultaneously, be inverted subsequently and be fixed on insulator foot, at the aluminium base brazing flux of the bottom of a pan surface uniform brushing one deck, and all pass into enough positions, the argon shield the bottom of a pan at the bottom of a pan positive and negative.The plate-like radio-frequency induction coil be opposite in insulator foot carries out electrified regulation, and heating frequency 100KHz carries out preheating to the titanium pot the bottom of a pan.Take out crucible; scrape off the oxide-film on aluminium liquid surface; subsequently the aluminium liquid of fusing is evenly cast in the titanium pot the bottom of a pan to make the bottom of a pan to be formed the thick aluminium liquid layer of 2.5mm; the flowing that the mechanical oscillation that insulator foot applies 30Hz promote aluminium liquid on the bottom of a pan and sprawling; electrical current decay gradually until last power-off; after aluminium liquid solidifies gradually and cools, stop argon shield, after dismounting, suitable dimension is machined to composite pan bottom, namely obtain the titanium pot of composite pan bottom.

Claims (6)

1. a preparation method for the titanium pot at the bottom of clad aluminum, it is characterized in that, method is as follows:
(1), by enough fine aluminiums put into ceramic crucible, put into stove subsequently and be heated to 700 DEG C-850 DEG C together and be incubated to temperature of aluminum liquid homogenising;
(2), titanium pot acetone is cleaned up, subsequently titanium pot (3) is fixed in nonmetal fixture cover (1), titanium pot (3) is inverted in insulator foot (5) together with nonmetal fixture cover (1) upper fixing, at the aluminium base brazing flux of the bottom of a pan surface uniform brushing one deck;
(3), pass into enough argon gas at the bottom of a pan positive and negative and protect, afterwards by plate-like high-frequency induction heating coil (4) energising in insulator foot (5), preheating is carried out to the bottom of a pan;
(4), ceramic crucible is taken out, scrape off the oxide-film of aluminium liquid surface attachment, it is cast in equably on the inverted titanium pot the bottom of a pan, make the bottom of a pan to be formed certain thickness aluminium liquid layer (2), promote the flowing of aluminium liquid on the bottom of a pan in insulator foot (5) upper applying mechanical oscillation;
(5) decay coil electricity electric current, gradually until power-off, after aluminium liquid solidifies and cools, stop logical argon shield.
2. the preparation method of the titanium pot at the bottom of a kind of clad aluminum according to claim 1, is characterized in that: described fine aluminium or for LF21 alumal.
3. the preparation method of the titanium pot at the bottom of a kind of clad aluminum according to claim 1, is characterized in that: described aluminium base brazing flux is QJ201, or is Nocolok brazing flux.
4. the preparation method of the titanium pot at the bottom of a kind of clad aluminum according to claim 1, is characterized in that: high-frequency induction heating coil heats frequency is: 20KHz ~ 100KHz.
5. the preparation method of the titanium pot at the bottom of a kind of clad aluminum according to claim 1, is characterized in that: the mechanical oscillation frequencies scope above applied at insulator foot (5) is 20Hz-30Hz.
6. the titanium pot at the bottom of a kind of clad aluminum that the preparation method of the titanium pot at the bottom of a kind of clad aluminum according to any one of claim 1-5 obtains.
CN201410079777.1A 2014-02-27 2014-02-27 Titanium pot at the bottom of a kind of clad aluminum and preparation method thereof Expired - Fee Related CN103815769B (en)

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CN104473558B (en) * 2014-12-02 2017-02-22 苏州鑫精艺钛制品有限公司 Multi-element composite titanium pot and manufacturing process
CN112317591B (en) * 2020-10-15 2023-02-17 苏州加益不锈钢制品有限公司 Molten state multi-point pot bottom attaching process and production device thereof

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CN102697378B (en) * 2012-06-20 2015-04-08 西北有色金属研究院 Manufacturing method of titanium copper compound pot
CN103433584A (en) * 2013-06-19 2013-12-11 哈尔滨工业大学 Medium-temperature brazing method of dissimilar metals of titanium and aluminium under atmospheric condition
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