CN101818288B - Full applicability air conditioning foil and manufacturing method thereof - Google Patents
Full applicability air conditioning foil and manufacturing method thereof Download PDFInfo
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- CN101818288B CN101818288B CN2010101586411A CN201010158641A CN101818288B CN 101818288 B CN101818288 B CN 101818288B CN 2010101586411 A CN2010101586411 A CN 2010101586411A CN 201010158641 A CN201010158641 A CN 201010158641A CN 101818288 B CN101818288 B CN 101818288B
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Abstract
The invention relates to a full applicability air conditioning foil and manufacturing method thereof. Al base only comprises Fe, Si and Ti three alloying elements, and the weight ratio of the three alloying elements is controlled to be that Fe: Si: Ti is equal to 60-80: 15-16: 1; the weight ratio causes aluminium alloy air conditioning foil is subject to combined action of Fe leading to 45 degrees of earing and Si leading to 0 or 90 degrees of earing in stamping process, so as to improve uniformity in earing direction, Ti therein realizes grain refining function, so that the grain size of air conditioning foil is less than or equal to one class, and plasticity of air conditioning foil is improved. The air conditioning foil can meet the performance requirement of various special punches used by the current air conditioner factories to stamping material, avoids the condition restriction that different special punch requirements of different suppliers are corresponding to different air conditioning foil materials and achieves the technical effect of unionization of air conditioning foil material.
Description
Technical field
The present invention relates to the aluminum foil material technology, particularly a kind of full applicability air conditioning foil and manufacture method thereof.Described full applicability is meant the punch machining process that can be applicable to multiple punch press, described air-conditioning paper tinsel can satisfy the performance requriements of the employed various professional punch presses of present conditioner producer to the punching press work material, avoided different suppliers professional punch press need with different air-conditioning foil matter corresponding condition restriction, reached the unitized technique effect of air-conditioning foil matter.
Background technology
The air-conditioning paper tinsel is a kind of aluminum alloy materials, and alloy element wherein usually selects to adopt Fe, Si, Mn, Ti, Cu or the like, for example comprises several array modes such as " Fe+Si+Ti ", " Fe+Si+Cu+Ti ", " Fe+Si+Mn+Ti " in the actual production.For the professional punch press that is suitable for different suppliers to the preference of punching press work material on performance requriements, on the alloying composition of air-conditioning paper tinsel aluminum alloy materials and content thereof, all has difference, caused the variation of air-conditioning foil matter.Existing air-conditioning foil matter has more moulding model: for example 8011 (or A8011), 1100 (or A1100), 1030B, 1060 (or A1060) or the like.The punch press of conditioner producer use at present is mainly the OAK of the U.S., high-precision, the gondola JBS of day and the homemade punch press of Japan.These punch presses have different requirements to the performance of material separately, have formed specific punch press basically and have used specific material.This makes that the production of air-conditioning paper tinsel is complicated, is difficult to form unitized.For this reason, my company has carried out the research and development of " full adaptability air-conditioning paper tinsel ", has formed the present invention.
Summary of the invention
The present invention is directed to the defective or the deficiency that exist in the prior art, a kind of full applicability air conditioning foil and manufacture method thereof are provided.Described full applicability is meant the punch machining process that can be applicable to multiple punch press, described air-conditioning paper tinsel can satisfy the performance requriements of the employed various professional punch presses of present conditioner producer to the punching press work material, avoided different suppliers professional punch press need with different air-conditioning foil matter corresponding condition restriction, reached the unitized technique effect of air-conditioning foil matter.
Technical conceive of the present invention is: by adjusting each synergistic alloy element and content thereof obtaining the portfolio effect of air-conditioning paper tinsel on mechanical property or mechanical property change in aluminium base, thereby be applicable to the punch process of multiple punch press.
Technical scheme of the present invention is as follows:
Full applicability air conditioning foil is characterized in that, only comprises Fe, Si, three kinds of alloy elements of Ti in the Al base, and the control of the weight ratio of these three kinds of alloy elements is as follows: Fe: Si: Ti=60～80: 15～16: 1; Described weight ratio makes aluminium alloy air-conditioner foil in punch process, tend to cause the Fe and the homogeneity of tending to cause 0 ° or 90 ° to make the Si combined action of ear of 45 ° of system ears with raising system ear direction, Ti wherein plays crystal grain thinning, make grain fineness number≤1 grade of air-conditioning paper tinsel, improve the plasticity of air-conditioning paper tinsel.
Be distributed in following alloy element composition and weight percent content value: Fe=1.1～1.6 thereof in the Al base, Si=0.2～0.37, Ti=0.013～0.028; The impurity element composition and the control of weight percent content value thereof that derive from raw material in the described air-conditioning paper tinsel are as follows: Cu≤0.05, Mn≤0.05, Mg≤0.01, Zn≤0.05; Derive from its total weight percent content value≤0.15 of other Control of Impurities of raw material in the described air-conditioning paper tinsel, and control its single weight percent content value≤0.05.
Be distributed in following alloy element composition and weight percent content value: Fe=1.2～1.5 thereof in the Al base, Si=0.21～0.36, Ti=0.014～0.027; The impurity element composition and the control of weight percent content value thereof that derive from raw material in the described air-conditioning paper tinsel are as follows: Cu≤0.05, Mn≤0.05, Mg≤0.01, Zn≤0.05; Derive from its total weight percent content value≤0.15 of other Control of Impurities of raw material in the described air-conditioning paper tinsel, and control its single weight percent content value≤0.05.
Be distributed in following alloy element composition and weight percent content value: Fe=1.3～1.4 thereof in the Al base, Si=0.23～0.33, Ti=0.015～0.025; The impurity element composition and the control of weight percent content value thereof that derive from raw material in the described air-conditioning paper tinsel are as follows: Cu≤0.05, Mn≤0.05, Mg≤0.01, Zn≤0.05; Derive from its total weight percent content value≤0.15 of other Control of Impurities of raw material in the described air-conditioning paper tinsel, and control its single weight percent content value≤0.05.
The Erichsen number of described air-conditioning paper tinsel can reach 7.2mm; The unit elongation of described air-conditioning paper tinsel can reach 24.80%.
The manufacture method of above-mentioned full applicability air conditioning foil, it is characterized in that, comprise batching step, it is standard aluminum or two zero aluminium ingot of 99.7% weight ratio that described batching adopts purity, and the one-level aluminium waste adds iron silicon master alloy, thereby increases mutual fusibleness in follow-up melting.
The manufacture method of above-mentioned full applicability air conditioning foil is characterized in that, comprises refinement step, and described refining employing routine is dusted and added the outer graphite rotator nitrogen refining of stove, guarantees hydrogen richness≤0.12mg/100gAl.
The manufacture method of above-mentioned full applicability air conditioning foil is characterized in that, comprises the casting step, and the casting district of described casting is 40mm～42mm.
The manufacture method of above-mentioned full applicability air conditioning foil is characterized in that, comprises cold rolling step and finish rolling step, and described cold rolling branch 9 passages or 10 passages are carried out, and described finish rolling divides 4 passages or 5 passages to carry out.
The manufacture method of above-mentioned full applicability air conditioning foil is characterized in that, comprises straightening step and annealing steps, and described straightening is carried out after the finish rolling step, makes the planeness of air-conditioning paper tinsel in 15I; Described annealing realizes different hardness state and the isostatic mechanical properties of air-conditioning paper tinsel by adopting different annealing temperatures.
Technique effect of the present invention is as follows:
Full applicability air conditioning foil of the present invention and manufacture method thereof, through practice test, can satisfy the performance requriements of the employed various professional punch presses of present conditioner producer to the punching press work material, avoided different suppliers professional punch press need with different air-conditioning foil matter corresponding condition restriction, reached the unitized technique effect of air-conditioning foil matter.
The inventor finds in research and development, Fe is except that having crystal grain thinning, uniform formation and strengthening effect, and Fe tends to cause 45 ° of system ears, and Si tends to 0 °, 90 ° system ears, both play the directivity that combined action can change rolled stock, help making the homogeneity of ear direction.But because Si can reduce the strengthening effect of Fe, its formed tiny spherical compound particle that exists has anti-surface friction effect.So we have adopted the proportioning form of the few Ti of the high Fe of low Si on the prescription of alloy, in essence difference is arranged with original Fe+Si+Ti.
The proportioning form of the few Ti of the high Fe of low Si that from technical scheme, is embodied, Fe content not only numerically has breakthrough, Fe=1.1～1.6, and also Fe content compares with Si content, and Fe content is about 5 times of Si content; Fe content is compared with Ti content, and Fe content is about 70 times of Ti content.Through on probation, multiple punch press has reached the service requirements of multiple punch press, broken through different suppliers in the prior art professional punch press need with the corresponding condition restriction of different air-conditioning foil matter, accomplished full adaptability fully.
Embodiment
In the research and development of " full adaptability air-conditioning paper tinsel ", total technical conceive is, by in aluminium base, adjusting each synergistic alloy element and content thereof obtaining the portfolio effect of air-conditioning paper tinsel on mechanical property or mechanical property change, thereby be applicable to the punch process of multiple punch press.
In the alloying aluminium foil, the function analysis of each alloy element is as follows:
Fe can promote grain refining within the specific limits, improves homogeneity of structure and improves intensity; Si can improve plasticity and Fe can reduce second phase size and grain-size in the strip casting process together effectively; Cu, Mn play the solution strengthening effect, but the adding of Cu is easily split base material, though the adding of Mn energy crystal grain thinning, reinforced alloys easily makes the difficult control of grain-size at different content and temperature range, so we select the basis of the form of Fe+Si as alloy formula for use.Reason is that Fe is except that having crystal grain thinning uniform formation and strengthening effect, Fe tends to cause 45 ° of system ears, and Si tends to the directivity that 0 °, 90 ° system ears can play combined action change rolled stock with Fe, help making the homogeneity of ear direction, but Si can reduce the strengthening effect of Fe, and its formed tiny spherical compound particle that exists has anti-surface friction effect.
We have adopted the proportioning form of the few Ti of the high Fe of low Si on the prescription of alloy, with the Fe+Si+Ti that adopts in the original actual production in essence difference is arranged.
In order to realize full adaptability, we mainly consider following 3 points: 1. advantages of higher tensile strength because the tensile strength of goods is big more, requires the intensity of alloy material higher.2. little yield tensile ratio because material has the advantages of higher tensile strength value when identical yield strength value, helps improving the supporting capacity of force transmission region, so should have less yield tensile ratio value as the material of tensile deformation.3. tiny and uniform grain structure is because this is the basis that guarantees plasticity.
On this basis, finished following technical conceive: full applicability air conditioning foil, it is characterized in that, only comprise Fe, Si, three kinds of alloy elements of Ti in the Al base, and the control of the weight ratio of these three kinds of alloy elements is as follows: Fe: Si: Ti=60～80: 15～16: 1; Described weight ratio makes aluminium alloy air-conditioner foil in punch process, tend to cause the Fe and the homogeneity of tending to cause 0 ° or 90 ° to make the Si combined action of ear of 45 ° of system ears with raising system ear direction, Ti wherein plays crystal grain thinning, make grain fineness number≤1 grade of air-conditioning paper tinsel, improve the plasticity of air-conditioning paper tinsel.
Based on above 3 considerations, we are controlled at the Chemical Composition of full applicability air conditioning foil respectively in the following scope by batching and online Chemical Composition analysis:
Be distributed in following alloy element composition and weight percent content value: Fe=1.1～1.6 thereof in the Al base, Si=0.2～0.37, Ti=0.013～0.028.Al is an equal amount.
Be distributed in following alloy element composition and weight percent content value: Fe=1.2～1.5 thereof in the Al base, Si=0.21～0.36, Ti=0.014～0.027.Al is an equal amount.
Be distributed in following alloy element composition and weight percent content value: Fe=1.3～1.4 thereof in the Al base, Si=0.23～0.33, Ti=0.015～0.025.Al is an equal amount.
Certainly, except above-mentioned alloy element composition, also have Al and impurities in raw materials and/or unavoidable impurities in the air-conditioning paper tinsel.
The impurity element composition and the control of weight percent content value thereof that derive from raw material in the described air-conditioning paper tinsel are as follows: Cu≤0.05, Mn≤0.05, Mg≤0.01, Zn≤0.05.
Derive from its total weight percent content value≤0.15 of other Control of Impurities of raw material in the described air-conditioning paper tinsel.
Derive from its single weight percent content value≤0.05 of other Control of Impurities of raw material in the described air-conditioning paper tinsel.
The impurity element composition and the control of weight percent content value thereof that derive from raw material in the described air-conditioning paper tinsel are as follows: Cu≤0.05, Mn≤0.05, Mg≤0.01, Zn≤0.05; Derive from its total weight percent content value≤0.15 of other Control of Impurities of raw material in the described air-conditioning paper tinsel, and control its single weight percent content value≤0.05.
The Erichsen number of full applicability air conditioning foil can reach 7.2mm.The unit elongation of described air-conditioning paper tinsel can reach 24.80%.The grain fineness number of described air-conditioning paper tinsel≤1 grade.
The manufacture method of full applicability air conditioning foil comprises batching, refining, casting, cold rolling and steps such as finish rolling, straightening and annealing.
It is standard aluminum or two zero aluminium ingot of 99.7% weight ratio that described batching adopts purity, and the one-level aluminium waste adds iron silicon master alloy, thereby increases mutual fusibleness in follow-up melting.
Described refining employing routine is dusted and is added the outer graphite rotator nitrogen refining of stove, guarantees hydrogen richness≤0.12mg/100gAl.
The casting district of described casting is 40mm～42mm.
Described cold rolling branch 9 passages or 10 passages are carried out, and described finish rolling divides 4 passages or 5 passages to carry out.
Described straightening is carried out after the finish rolling step, makes the planeness of air-conditioning paper tinsel in 15I; Described annealing realizes different hardness state and the isostatic mechanical properties of air-conditioning paper tinsel by adopting different annealing temperatures.
The technical process of full applicability air conditioning foil is as follows:
Batching → melting → casting → cold rolling → finish rolling → straightening → annealing → check → packing.
The Chemical Composition following table is that example illustrates the technical process that whole air-conditioning paper tinsel is produced.
Table 1
1. two zero aluminium ingots of batching employing add the one-level waste material and add iron silicon master alloy, can increase mutual fusibleness like this.
2. smelting temperature is controlled in 755 ℃, and furnace temperature is 745 ℃～755 ℃.
3. static furnace temperature is controlled at about 745 ℃, guarantees about 730 ℃ of spout temperature.
4. refining employing routine is dusted and is added the outer graphite rotator nitrogen refining of stove, guarantees below hydrogen richness≤0.12mg/100gAl.
5. consider that this strength of materials is smaller to getting as far as possible than higher casting district, 40mm～42mm.
6. preceding oven temperature, degree is controlled at 690 ℃ ± 3 ℃.
7.AlTiB a silk rate of feeding is controlled at 180cm/min, and grain fineness number guarantees≤1 grade.
8. product specification 7.0 * 945mm, trimmed size 0.095 * 936 * L.
9. rolling
Cold rolling: 7.0 → 5.6 → 4.3 → 3.2 → 2.3 → 1.6 → 1.05 → 0.7 → 0.48 → 0.33mm.
Finish rolling: 0.33 → 0.23 → 0.17 → 0.125 → 0.095mm.
10. straightening
Guarantee to clean and even up, planeness is in 15I.
11. annealing
Obtained the annealing temperature of H24, H22, three kinds of states of O respectively by the sample annealing experiment, determined 350 ℃ of H24 states, 380 ℃ of H22 states, the annealing temperature that the O state is 425 ℃ respectively through the experiment of industrial furnace short run.According to the difference of batch, stipulated different soaking times, see that from the H24 state product that present user needs mechanical property has reached the numerical value the table 2 respectively, has satisfied requirement of client fully.
Table 2
12. check
Mechanical property meets customer requirements, grain fineness number≤1 grade, and the surface is good, and plate shape is smooth, and Chemical Composition is qualified.See Table 3.
Table 3
| Si | Fe | Cu | Mn | Mg | Zn | Ti |
| 0.251 | 1.36 | 0.0053 | 0.030 | ＜0.005 | ＜0.005 | 0.0172 |
13. conclusion
This product has all reached service requirements through man use of multiple punch press, has accomplished full adaptability fully.
This product intensity under unannealed situation is very high, has increased passage to cold rolling, finish rolling.
Note existing certain difference between retort furnace and the industrial furnace, particularly temperature control and rate of warming, and print and product are to the influence of processing parameter.
We know that the increase of Fe content has improved intensity on the one hand by experiment, have also improved recrystallization temperature on the one hand.
Should be pointed out that the above embodiment can make those skilled in the art more fully understand the present invention, but do not limit the present invention in any way.Therefore, although this specification sheets has been described in detail to the present invention,, it will be appreciated by those skilled in the art that still and can make amendment or be equal to replacement the present invention; And all do not break away from the technical scheme and the improvement thereof of spirit of the present invention, and it all should be encompassed in the middle of the protection domain of patent of the present invention.
Claims (5)
1. full applicability air conditioning foil is characterized in that, only comprises Fe, Si, three kinds of alloy elements of Ti in the Al base, and the control of the weight ratio of these three kinds of alloy elements is as follows: Fe: Si: Ti=60～80: 15～16: 1; Described weight ratio makes aluminium alloy air-conditioner foil in punch process, tend to cause the Fe and the homogeneity of tending to cause 0 ° or 90 ° to make the Si combined action of ear of 45 ° of system ears with raising system ear direction, Ti wherein plays crystal grain thinning, make grain fineness number≤1 grade of air-conditioning paper tinsel, improve the plasticity of air-conditioning paper tinsel;
Be distributed in following alloy element composition and weight percent content value: Fe=1.1～1.6 thereof in the Al base, Si=0.2～0.37, Ti=0.013～0.028; The impurity element composition and the control of weight percent content value thereof that derive from raw material in the described air-conditioning paper tinsel are as follows: Cu≤0.05, Mn≤0.05, Mg≤0.01, Zn≤0.05; Derive from its total weight percent content value≤0.15 of other Control of Impurities of raw material in the described air-conditioning paper tinsel, and control its single weight percent content value≤0.05.
2. full applicability air conditioning foil according to claim 1 is characterized in that, is distributed in following alloy element composition and weight percent content value: Fe=1.2～1.5 thereof in the Al base, Si=0.21～0.36, Ti=0.014～0.027; The impurity element composition and the control of weight percent content value thereof that derive from raw material in the described air-conditioning paper tinsel are as follows: Cu≤0.05, Mn≤0.05, Mg≤0.01, Zn≤0.05; Derive from its total weight percent content value≤0.15 of other Control of Impurities of raw material in the described air-conditioning paper tinsel, and control its single weight percent content value≤0.05.
3. full applicability air conditioning foil according to claim 1 is characterized in that, is distributed in following alloy element composition and weight percent content value: Fe=1.3～1.4 thereof in the Al base, Si=0.23～0.33, Ti=0.015～0.025; The impurity element composition and the control of weight percent content value thereof that derive from raw material in the described air-conditioning paper tinsel are as follows: Cu≤0.05, Mn≤0.05, Mg≤0.01, Zn≤0.05; Derive from its total weight percent content value≤0.15 of other Control of Impurities of raw material in the described air-conditioning paper tinsel, and control its single weight percent content value≤0.05.
4. full applicability air conditioning foil according to claim 1 is characterized in that the Erichsen number of described air-conditioning paper tinsel can reach 7.2mm; The unit elongation of described air-conditioning paper tinsel can reach 24.80%.
5. according to the manufacture method of one of claim 1-4 described full applicability air conditioning foil, it is characterized in that, comprise batching step, refinement step, casting step, cold rolling step, finish rolling step, straightening step and annealing steps; It is standard aluminum or two zero aluminium ingot of 99.7% weight ratio that described batching adopts purity, and the one-level aluminium waste adds iron silicon master alloy, thereby increases mutual fusibleness in follow-up melting; Described refining employing routine is dusted and is added the outer graphite rotator nitrogen refining of stove, guarantees hydrogen richness≤0.12mg/100gAl; The casting district of described casting is 40mm～42mm; Described cold rolling branch 9 passages or 10 passages are carried out, and described finish rolling divides 4 passages or 5 passages to carry out; Described straightening is carried out after the finish rolling step, makes the planeness of air-conditioning paper tinsel in 15I; Described annealing realizes different hardness state and the isostatic mechanical properties of air-conditioning paper tinsel by adopting different annealing temperatures.
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| CN115927918A (en) * | 2021-12-17 | 2023-04-07 | 江苏常铝铝业集团股份有限公司 | Aluminum foil for air conditioner and preparation method thereof |
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| JPS61119658A (en) * | 1984-11-16 | 1986-06-06 | Sukai Alum Kk | Manufacture of material for aluminum foil |
| JPS6425933A (en) * | 1987-07-21 | 1989-01-27 | Sumikei Arumihaku Kk | Aluminum foil for packing |
| CN100500904C (en) * | 2007-08-03 | 2009-06-17 | 乳源东阳光精箔有限公司 | Aluminum foil used for heat exchanger and manufacturing method thereof |
| CN101307404A (en) * | 2008-06-05 | 2008-11-19 | 江阴博威合金材料有限公司 | High performance air conditioning aluminum foil and method for preparing same |
| CN101289720B (en) * | 2008-06-17 | 2010-12-22 | 上海大屯能源股份有限公司 | Air conditioner foils and method for preparing same |
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