CN203901736U - Aluminum-plastic composite membrane treatment device with resistance to hydrofluoric acid corrosion - Google Patents
Aluminum-plastic composite membrane treatment device with resistance to hydrofluoric acid corrosion Download PDFInfo
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- CN203901736U CN203901736U CN201420336289.XU CN201420336289U CN203901736U CN 203901736 U CN203901736 U CN 203901736U CN 201420336289 U CN201420336289 U CN 201420336289U CN 203901736 U CN203901736 U CN 203901736U
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- hydrofluoric acid
- aluminium foil
- aluminum
- hot water
- squeeze roll
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Abstract
The utility model discloses an aluminum-plastic composite membrane treatment device with resistance to hydrofluoric acid corrosion. The aluminum-plastic composite membrane treatment device comprises a discharging mechanism and a receiving mechanism, wherein a hot alkaline liquor tank, a hot water tank, a hydrofluoric acid tank and a cold water tank are sequentially arranged between the discharging mechanism and the receiving mechanism. According to the aluminum-plastic composite membrane treatment device with resistance to hydrofluoric acid corrosion, a two-step chemical aluminum foil anticorrosion process is used in the same device; the bright surface of the aluminum foil is firstly degreased and washed in the hot alkaline liquor tank, and subsequently the anticorrosion treatment is carried on the aluminum foil in an aqueous solution tank containing hydrofluoric acid, so that a fluoride salt anticorrosion membrane layer can be smoothly produced on the aluminum foil; the thickness and the quality of the fluoride salt anticorrosion membrane layer can be controlled. The prepared fluoride salt conversion membrane is uniform in membrane layer thickness, strong in binding force with a substrate and good in corrosion resistance, has metal appearance, is capable of enabling the resistance to hydrofluoric acid corrosion of the aluminum-plastic composite to reach the requirement and is low in use cost.
Description
Technical field
The utility model relates to a kind of aluminum-plastic composite membrane anti-corrosion treatment technology, relates in particular to a kind of plastic-aluminum combined membrane treatment appts of anti-hydrofluoric acid corrosion.
Background technology
At present, the surface anticorrosion of aluminium alloy is processed general chromate/oxide type pretreatment fluid that adopts, and the chromic acid solution that it contains fluoride and molybdate promoter generates unformed conversion film on aluminium alloy, and the controlled quentity controlled variable of conversion film is in 0.25g/ ㎡ left and right.In this conversion film, because containing Cr VI compound, be a kind of extremely toxic substance, deal with improperly not only surrounding environment is caused to very big pollution, and can endanger people's health.Chromate Yi Bei national governments in the middle of commercial Application strictly limit, and replace technique and have become trend of the times.
Meanwhile, the plastic-aluminum combined material that existing packing contains hydrofluoric acid is all imported material, and material structure is all generally nylon/aluminium/cast polypropylene.Cause and use the production cost of manufacturer higher.And the anti-hydrofluoric acid performance of the aluminium plastic composite material ubiquity of domestic production does not all reach the shortcoming of requirement, mainly being reflected in hydrofluoric acid penetrates after cast polypropylene, hydrofluoric acid meeting corrosive aluminum foil, thereby make aluminium foil form perforation, content evaporate into packaging material outside, the effect that makes packaging material lose protection, intercept.
Utility model content
The purpose of this utility model is to provide a kind of plastic-aluminum combined membrane treatment appts of anti-hydrofluoric acid corrosion, its anti-hydrofluoric acid performance of aluminium plastic composite material after this treating apparatus is processed can reach requirement, use cost is low, to solve the problems referred to above that in prior art, the aluminium plastic composite material of domestic production exists.
For reaching this object, the utility model by the following technical solutions:
A plastic-aluminum combined membrane treatment appts for anti-hydrofluoric acid corrosion, it comprises discharge mechanism and receiving mechanism, the thermokalite liquid bath, hot water storgae, hydrofluoric acid groove and the cold rinse bank that between described discharge mechanism and receiving mechanism, set gradually, wherein,
Described discharge mechanism comprises emptying roller and blowing deflector roll, on described emptying roller, aluminum foil coil is set, and aluminium foil is introduced thermokalite liquid bath after blowing deflector roll;
In described thermokalite liquid bath, be provided with the heater for the alkali lye holding in it is heated, in described thermokalite liquid bath, in the top of alkali lye liquid level, coordinate the bright face of aluminium foil to be provided with heat alkali liquid shower nozzle, and in described thermokalite liquid bath, be provided with the brushing device for the bright face of aluminium foil is scrubbed, the port of export of described thermokalite liquid bath is provided with alkali cleaning squeeze roll group, and aluminium foil is introduced hot water storgae after alkali cleaning squeeze roll group;
In described hot water storgae, be provided with the heater for the rinse water holding in it is heated, in described hot water storgae, in the below of rinse water liquid level, be provided with the brushing device that the bright face of aluminium foil is scrubbed, the described hot water storgae port of export is provided with hot water squeeze roll group, and aluminium foil is introduced hydrofluoric acid groove after hot water squeeze roll group;
In described hydrofluoric acid groove, be provided with the heater heating for the hydrofluoric acid liquid to holding in it, in described hydrofluoric acid groove, in the top of alkali lye liquid level, coordinate the bright face of aluminium foil to be provided with hydrofluoric acid liquid shower nozzle, and in described hydrofluoric acid groove, be provided with the brushing device for the bright face of aluminium foil is scrubbed, the port of export of described hydrofluoric acid groove is provided with hydrofluoric acid squeeze roll group, and aluminium foil is introduced cold rinse bank after hydrofluoric acid squeeze roll group;
In described cold rinse bank, be provided with the brushing device that the bright face of aluminium foil is scrubbed in the below of lonely wash water liquid level, the port of export of described cold rinse bank is provided with cold water squeeze roll group, and aluminium foil is introduced receiving mechanism after cold water squeeze roll group;
Described receiving mechanism comprises rewinding deflector roll and material receiving roller, and aluminium foil is introduced material receiving roller through cold water squeeze roll group by rewinding deflector roll and carried out rolling.
Especially, described heater is the electric heating tube being arranged in corresponding cell body.
Especially, in described thermokalite liquid bath, coordinate bright parallel interval of aluminium foil to be provided with two heat extraction alkali lye shower nozzles, the below of described two heat extraction alkali lye shower nozzles is provided with two groups of brushing devices, aluminium foil is through wherein introducing described two groups of brushing devices after a heat extraction alkali lye shower nozzle, then sprays by another heat extraction alkali lye shower nozzle.
Especially, in described hydrofluoric acid groove, coordinate bright parallel interval of aluminium foil to be provided with two row's hydrofluoric acid liquid shower nozzles, the below of described two row's hydrofluoric acid liquid shower nozzles is provided with two groups of brushing devices, aluminium foil is through wherein introducing described two groups of brushing devices after row's hydrofluoric acid liquid shower nozzle, then sprays by another row's hydrofluoric acid liquid shower nozzle.
Especially, described brushing device comprise scrub smooth roll and with the nylon bristle of scrubbing smooth roll and being equipped with.
Especially, described thermokalite liquid bath, hot water storgae, hydrofluoric acid groove and cold rinse bank are made by polyfluortetraethylene plate.
The beneficial effects of the utility model are that compared with prior art the plastic-aluminum combined membrane treatment appts of described anti-hydrofluoric acid corrosion has the following advantages:
1) this treating apparatus technique is simple, can significantly enhance productivity, and use cost is low.
2) this treating apparatus adopts two step chemistry aluminium foil anticorrosion process on same equipment, aluminium foil first carries out oil removing cleaning to the bright face of aluminium foil in thermokalite liquid bath, within containing the water-soluble liquid bath of hydrofluoric acid, carry out preservative treatment subsequently, both can guarantee that aluminium foil produces the anticorrosion rete of fluoride salt smoothly, can control again thickness and the quality of fluoride salt rete.The fluoride salt conversion film making, thicknesses of layers is even, strong with basal body binding force, and corrosion resistance is good, has metal appearance.
Accompanying drawing explanation
Fig. 1 is the structural representation of the plastic-aluminum combined membrane treatment appts of the anti-hydrofluoric acid corrosion that provides of the utility model specific embodiment 1.
In figure:
1, thermokalite liquid bath; 2, hot water storgae; 3, hydrofluoric acid groove; 4, cold rinse bank; 5, emptying roller; 6, blowing deflector roll; 7, heat alkali liquid shower nozzle; 8, alkali cleaning squeeze roll group; 9, hot water squeeze roll group; 10, hydrofluoric acid liquid shower nozzle; 11, hydrofluoric acid squeeze roll group; 12, cold water squeeze roll group; 13, rewinding deflector roll; 14, material receiving roller; 15, scrub smooth roll; 16, nylon bristle.
The specific embodiment
Below in conjunction with accompanying drawing and by the specific embodiment, further illustrate the technical solution of the utility model.
Refer to shown in Fig. 1, Fig. 1 is the structural representation of the plastic-aluminum combined membrane treatment appts of the anti-hydrofluoric acid corrosion that provides of the utility model specific embodiment 1.
In the present embodiment, a kind of plastic-aluminum combined membrane treatment appts of anti-hydrofluoric acid corrosion comprises discharge mechanism and receiving mechanism, the thermokalite liquid bath 1 setting gradually between described discharge mechanism and receiving mechanism, hot water storgae 2, hydrofluoric acid groove 3 and cold rinse bank 4, described thermokalite liquid bath 1, hot water storgae 2, hydrofluoric acid groove 3 and cold rinse bank 4 are made by polyfluortetraethylene plate, described discharge mechanism comprises emptying roller 5 and blowing deflector roll 6, on described emptying roller 5, aluminum foil coil is set, aluminium foil is introduced thermokalite liquid bath 1 after blowing deflector roll 6;
In described thermokalite liquid bath 1, be provided with the electric heating tube for the alkali lye holding in it is heated, in described thermokalite liquid bath 1, in the top of alkali lye liquid level, coordinate bright parallel interval of aluminium foil to be provided with two heat extraction alkali lye shower nozzles 7, the below of described two heat extraction alkali lye shower nozzles 7 is arranged at intervals with two groups of brushing devices, aluminium foil is through wherein introducing two groups of brushing devices after a heat extraction alkali lye shower nozzle 7, by another heat extraction alkali lye shower nozzle 7, spray again, the port of export of described thermokalite liquid bath 1 is provided with alkali cleaning squeeze roll group 8, and aluminium foil is introduced hot water storgae 2 after alkali cleaning squeeze roll group 8;
In described hot water storgae 2, be provided with the electric heating tube for the rinse water holding in it is heated, in described hot water storgae 2, the parallel beneath of rinse water liquid level is arranged at intervals with two groups of brushing devices that the bright face of aluminium foil is scrubbed in the inner, described hot water storgae 2 ports of export are provided with hot water squeeze roll group 9, and aluminium foil is introduced hydrofluoric acid groove 3 after hot water squeeze roll group 9;
In described hydrofluoric acid groove 3, be provided with the electric heating tube heating for the hydrofluoric acid liquid to holding in it, in described hydrofluoric acid groove 3, in the top of alkali lye liquid level, coordinate bright parallel interval of aluminium foil to be provided with two row's hydrofluoric acid liquid shower nozzles 10, the below of described two row's hydrofluoric acid liquid shower nozzles 10 is provided with two groups of brushing devices, aluminium foil is through wherein introducing two groups of brushing devices after row's hydrofluoric acid liquid shower nozzle 10, by another row's hydrofluoric acid liquid shower nozzle 10, spray again, the port of export of described hydrofluoric acid groove 3 is provided with hydrofluoric acid squeeze roll group 11, aluminium foil is introduced cold rinse bank 4 after hydrofluoric acid squeeze roll group 11,
Parallel beneath in lonely wash water liquid level in described cold rinse bank 4 is arranged at intervals with two groups of brushing devices that the bright face of aluminium foil is scrubbed, and the port of export of described cold rinse bank 4 is provided with cold water squeeze roll group 12, and aluminium foil is introduced receiving mechanism after cold water squeeze roll group 12; Described receiving mechanism comprises rewinding deflector roll 13 and material receiving roller 14, and aluminium foil is introduced material receiving roller through cold water squeeze roll group 12 by rewinding deflector roll 13 and carried out rolling 14.
Above-mentioned brushing device include scrub smooth roll 15 and with the nylon bristle 16 of scrubbing smooth roll 15 and being equipped with.
The processing step of the plastic-aluminum combined membrane treatment appts of above-mentioned anti-hydrofluoric acid corrosion is:
Step 1, aluminium foil is introduced thermokalite liquid baths 1 by blowing deflector roll 6, and it is 60 ℃ of sodium hydrate aqueous solutions that concentration is 0.5%～1.5% that described thermokalite liquid bath 1 holds temperature, by heat alkali liquid shower nozzle 7, with the pressure of 2.0*MPa, sprays and scrub bright of aluminium foil.The bright face of aluminium foil is that aluminium foil surface can contain micro-grease because aluminium foil is used lubricating oil in the process of rolling, and uses sodium hydrate aqueous solution to remove the greasy dirt of bright of aluminium foil, the peel strength of energy reinforced composite.Sodium hydrate aqueous solution in thermokalite liquid bath 1 is switched on and is heated to 60 ℃ by electric heating tube, solid greasy dirt at such temperature on sodium hydrate aqueous solution energy and aluminium foil plays chemical reaction, makes solid greasy dirt change into liquid and flows in thermokalite liquid bath 1 with sodium hydrate aqueous solution.Described heat alkali liquid shower nozzle 7 use polytetrafluoro corrosion protection pumps are the alkali lye circulated sprinkling in lye tank (vat) to bright of aluminium foil, and the effect of pressurization accelerates to rinse the greasy dirt of bright of aluminium foil with the flow velocity of alkali lye, the greasy dirt in aluminium foil crackle can be developed.Scrub thin, soft nylon bruss that employing can rotate and press close to the bright face of aluminium foil and carry out reverse scrubbing, for next step chemical treatment provides clean surface, aluminium foil dewaters by alkali cleaning squeeze roll group 8 after alkali lye cleans oil removing.
Step 2, after step 1 is processed, aluminium foil is introduced hot water storgae 2 by alkali cleaning squeeze roll group 8, by temperature, be that the hot water of the 80 ℃ bright face of aluminium foil after to oil removing carries out spray irrigation, to remove bright residual alkali lye of aluminium foil, and after spray irrigation, by 9 pairs of aluminium foil surfaces of hot water squeeze roll group, dewater, to remove the moisture content remaining in above aluminium foil;
Step 3, aluminium foil is introduced hydrofluoric acid groove 3 after hot water squeeze roll group 9, in described hydrofluoric acid groove 3, hold temperature and be controlled at 40 ℃, the hot hydrofluoric acid aqueous solution that concentration is 20%, obtains hydrofluoric acid aqueous solution by hydrofluoric acid liquid shower nozzle 10 heat and can evenly spray bright of aluminium foil.Strong acid solution can produce certain acid corrosion action at aluminium foil surface and form aluminum fluoride salt conversion film:
6HF+2AL＝3H
2+2ALF
3
2Fe+6HF＝2FeF
3+3H
2
Simultaneously can also there is chemical reaction with trace elements iron (Fe), the manganese (Mn) of aluminium foil inside in hydrofluoric acid, but not can with copper generation chemical reaction.The fluoride salt rete chemical property generating at aluminium foil surface is very stable, be insoluble to acid, alkali, by controlling running speed 20---the 30m/min of aluminium foil, the amount of conversion film is controlled at 0.3g/ ㎡, and aluminium foil is dewatered by hydrofluoric acid squeeze roll group 11 after hydrofluoric acid treatment.
Step 4, aluminium foil is introduced cold rinse bank 4 after hydrofluoric acid squeeze roll group 11, by cold water drip washing, remove the hydrofluoric acid aqueous solution of aluminium foil surface, then aluminium foil is extracted cold water solution through a set of squeeze roll, described cold water refers to purified water, and having cleaned after aluminium foil aluminium foil surface can the residual water stain trace mineral in water that waits, with anti-pollution next procedure, must use not residual water stain purified water, after embathing, by cold water squeeze roll group 12, be dewatered.
The above-mentioned composite forming after anti-hydrofluoric acid corrosion treatment technique can meet containing the packing of a small amount of hydrofluoric acid content.Bright of the aluminium foil of described processing, be exactly preceding working procedure at the fluoride salt rete of bright formation of aluminium foil, this fluoride salt rete has the function of hydrofluoric acid corrosion resistance.
Above embodiment has just set forth basic principle of the present utility model and characteristic; the utility model is not limited by above-mentioned example; do not departing under the prerequisite of the utility model spirit and scope; the utility model also has various variations and change, and these variations and change all fall within the scope of claimed the utility model.The claimed scope of the utility model is defined by appending claims and equivalent thereof.
Claims (6)
1. the plastic-aluminum combined membrane treatment appts that anti-hydrofluoric acid corrodes, it comprises discharge mechanism and receiving mechanism, the thermokalite liquid bath, hot water storgae, hydrofluoric acid groove and the cold rinse bank that between described discharge mechanism and receiving mechanism, set gradually, is characterized in that,
Described discharge mechanism comprises emptying roller and blowing deflector roll, on described emptying roller, aluminum foil coil is set, and aluminium foil is introduced thermokalite liquid bath after blowing deflector roll;
In described thermokalite liquid bath, be provided with the heater for the alkali lye holding in it is heated, in described thermokalite liquid bath, in the top of alkali lye liquid level, coordinate the bright face of aluminium foil to be provided with heat alkali liquid shower nozzle, and in described thermokalite liquid bath, be provided with the brushing device for the bright face of aluminium foil is scrubbed, the port of export of described thermokalite liquid bath is provided with alkali cleaning squeeze roll group, and aluminium foil is introduced hot water storgae after alkali cleaning squeeze roll group;
In described hot water storgae, be provided with the heater for the rinse water holding in it is heated, in described hot water storgae, in the below of rinse water liquid level, be provided with the brushing device that the bright face of aluminium foil is scrubbed, the described hot water storgae port of export is provided with hot water squeeze roll group, and aluminium foil is introduced hydrofluoric acid groove after hot water squeeze roll group;
In described hydrofluoric acid groove, be provided with the heater heating for the hydrofluoric acid liquid to holding in it, in described hydrofluoric acid groove, in the top of alkali lye liquid level, coordinate the bright face of aluminium foil to be provided with hydrofluoric acid liquid shower nozzle, and in described hydrofluoric acid groove, be provided with the brushing device for the bright face of aluminium foil is scrubbed, the port of export of described hydrofluoric acid groove is provided with hydrofluoric acid squeeze roll group, and aluminium foil is introduced cold rinse bank after hydrofluoric acid squeeze roll group;
In described cold rinse bank, be provided with the brushing device that the bright face of aluminium foil is scrubbed in the below of lonely wash water liquid level, the port of export of described cold rinse bank is provided with cold water squeeze roll group, and aluminium foil is introduced receiving mechanism after cold water squeeze roll group;
Described receiving mechanism comprises rewinding deflector roll and material receiving roller, and aluminium foil is introduced material receiving roller through cold water squeeze roll group by rewinding deflector roll and carried out rolling.
2. the plastic-aluminum combined membrane treatment appts of anti-hydrofluoric acid corrosion according to claim 1, is characterized in that, described heater is the electric heating tube being arranged in corresponding cell body.
3. the plastic-aluminum combined membrane treatment appts that anti-hydrofluoric acid according to claim 1 corrodes, it is characterized in that, in described thermokalite liquid bath, coordinate bright parallel interval of aluminium foil to be provided with two heat extraction alkali lye shower nozzles, the below of described two heat extraction alkali lye shower nozzles is provided with two groups of brushing devices, aluminium foil is through wherein introducing two groups of brushing devices after a heat extraction alkali lye shower nozzle, then sprays by another heat extraction alkali lye shower nozzle.
4. the plastic-aluminum combined membrane treatment appts that anti-hydrofluoric acid according to claim 1 corrodes, it is characterized in that, in described hydrofluoric acid groove, coordinate bright parallel interval of aluminium foil to be provided with two row's hydrofluoric acid liquid shower nozzles, the below of described two row's hydrofluoric acid liquid shower nozzles is provided with two groups of brushing devices, aluminium foil is through wherein introducing two groups of brushing devices after row's hydrofluoric acid liquid shower nozzle, then sprays by another row's hydrofluoric acid liquid shower nozzle.
5. according to the plastic-aluminum combined membrane treatment appts of the anti-hydrofluoric acid corrosion described in claim 1 to 4 any one, it is characterized in that, described brushing device comprise scrub smooth roll and with the nylon bristle of scrubbing smooth roll and being equipped with.
6. the plastic-aluminum combined membrane treatment appts of anti-hydrofluoric acid corrosion according to claim 1, is characterized in that, described thermokalite liquid bath, hot water storgae, hydrofluoric acid groove and cold rinse bank are made by polyfluortetraethylene plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420336289.XU CN203901736U (en) | 2014-06-23 | 2014-06-23 | Aluminum-plastic composite membrane treatment device with resistance to hydrofluoric acid corrosion |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420336289.XU CN203901736U (en) | 2014-06-23 | 2014-06-23 | Aluminum-plastic composite membrane treatment device with resistance to hydrofluoric acid corrosion |
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| CN203901736U true CN203901736U (en) | 2014-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420336289.XU Withdrawn - After Issue CN203901736U (en) | 2014-06-23 | 2014-06-23 | Aluminum-plastic composite membrane treatment device with resistance to hydrofluoric acid corrosion |
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| CN (1) | CN203901736U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104070690A (en) * | 2014-06-23 | 2014-10-01 | 无锡市华泰医药包装有限公司 | Treating process and device of hydrofluoric acid corrosion resistant aluminum-plastic composite film |
-
2014
- 2014-06-23 CN CN201420336289.XU patent/CN203901736U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104070690A (en) * | 2014-06-23 | 2014-10-01 | 无锡市华泰医药包装有限公司 | Treating process and device of hydrofluoric acid corrosion resistant aluminum-plastic composite film |
| CN104070690B (en) * | 2014-06-23 | 2017-04-12 | 无锡市华泰医药包装有限公司 | Treating process and device of hydrofluoric acid corrosion resistant aluminum-plastic composite film |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141029 Effective date of abandoning: 20170412 |
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| AV01 | Patent right actively abandoned |