CN115869918A - 1-series pure aluminum foil rolling oil filter aid and application thereof - Google Patents
1-series pure aluminum foil rolling oil filter aid and application thereof Download PDFInfo
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- CN115869918A CN115869918A CN202211531709.5A CN202211531709A CN115869918A CN 115869918 A CN115869918 A CN 115869918A CN 202211531709 A CN202211531709 A CN 202211531709A CN 115869918 A CN115869918 A CN 115869918A
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- 239000010731 rolling oil Substances 0.000 title claims abstract description 87
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 75
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 72
- 239000011888 foil Substances 0.000 title claims abstract description 58
- 239000002023 wood Substances 0.000 claims abstract description 127
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 82
- 238000001914 filtration Methods 0.000 claims abstract description 58
- 239000000463 material Substances 0.000 claims abstract description 14
- 239000002245 particle Substances 0.000 claims description 59
- 239000000654 additive Substances 0.000 claims description 41
- 230000000996 additive effect Effects 0.000 claims description 35
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 25
- 238000000034 method Methods 0.000 claims description 14
- 239000003921 oil Substances 0.000 claims description 13
- 238000002834 transmittance Methods 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 10
- 238000001514 detection method Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 239000013072 incoming material Substances 0.000 claims description 5
- 238000005096 rolling process Methods 0.000 abstract description 10
- 230000000052 comparative effect Effects 0.000 description 19
- 238000004519 manufacturing process Methods 0.000 description 9
- 230000009467 reduction Effects 0.000 description 8
- 238000005097 cold rolling Methods 0.000 description 6
- 239000011148 porous material Substances 0.000 description 6
- 238000009826 distribution Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000003825 pressing Methods 0.000 description 5
- 238000000576 coating method Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 230000002035 prolonged effect Effects 0.000 description 4
- 239000012535 impurity Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000003993 interaction Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 101100434205 Solanum tuberosum AC75 gene Proteins 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 210000002421 cell wall Anatomy 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012065 filter cake Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000011895 specific detection Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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Abstract
The invention discloses a 1-series pure aluminum foil rolling oil filter aid and application thereof, belonging to the technical field of aluminum foil rolling auxiliary materials. A1-series pure aluminum foil rolling oil filter aid comprises a wood auxiliary agent, wherein the granularity of the wood auxiliary agent is 1-10000 mu m, the diametral distance of the wood auxiliary agent is 10-20, the maximum granularity is 1000-7000 mu m, and the mass of the wood auxiliary agent with the granularity of 10-500 mu m accounts for 56-66% of the total mass of the wood auxiliary agent; the mass of the wood auxiliary agent with the granularity of 1000-10000 mu m accounts for 33-43% of the total mass of the wood auxiliary agent; the mass ratio of the wood auxiliary agent with the granularity of 10-500 mu m to the wood auxiliary agent with the granularity of 1000-10000 mu m is (1.3-2): 1. the 1-series pure aluminum foil rolling oil filter aid can effectively improve the filtering period of rolling oil.
Description
Technical Field
The invention relates to the technical field of aluminum foil rolling auxiliary materials, in particular to a 1-series pure aluminum foil rolling oil filter aid and application thereof.
Background
The rolling oil plays an important role in the aluminum foil cold rolling link and mainly plays three roles of cooling, cleaning and lubricating. During the cold pressing of the aluminum foil, due to the interaction force and high-speed friction between the working roll and the surface of the aluminum coil, an interaction area is changed into a high-temperature area, and a large amount of aluminum scraps, oxides and other harmful substances are generated. The mass percentage of aluminum in the 1-series pure aluminum foil is more than or equal to 99.00 percent, and the aluminum content is very high, so that when the rolling reduction is high in speed and large in rolling reduction, more aluminum scraps, oxides and other harmful substances are generated in unit time, the rolling oil is polluted, the normal cold rolling process is forced to be terminated, and the rolling oil can be recycled after strict filtration, so that the relative cleanness of the rolling oil is especially important.
At present, diatomite and carclazyte are generally adopted as filter media at home and abroad, and a non-woven fabric and a plate filter are matched to form a filter system to filter a large amount of harmful substances in rolling oil, so that the cleanness and normal recycling of the rolling oil are guaranteed. However, the filter cake after the diatomite and the clay are filtered contains more residues, aluminum powder and mineral components, has great harm to human bodies and environment, great post-treatment difficulty and high cost, and is a difficult problem which troubles various aluminum plate and foil production enterprises all the time.
The wood auxiliary agent is used as the main component of the plant cell wall, has wide source, has particles with nano-scale microporous structure similar to diatomite, has larger relative surface area than the diatomite, and has stronger capability of adsorbing impurities in the dirty oil. Meanwhile, the wood auxiliary agent has certain toughness and water absorption, thereby playing an important role in serving as a novel environment-friendly filtering agent for replacing diatomite and argil.
The prior art discloses a filter aid for aluminum foil rolling oil, which consists of cellulose, diatomite and clay, and can improve the filtering period to 48-52 h, however, the filter aid has a longer filtering period and a better effect in the traditional aluminum alloy such as braze welding foil cold pressing delay, but has a poor performance in the rolling and use of 1-series pure aluminum alloy, and each barrel of oil can only be used for 4-6h.
Therefore, under the environment of speed increase, pass reduction, cost reduction and environmental protection of the current aluminum processing industry, the problem of short filtering period of the 1-series pure aluminum cold rolling oil is particularly important to solve.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defect and the defect of short filtering period of the existing 1-series pure aluminum cold-pressing rolling oil, and provides a 1-series pure aluminum foil rolling oil filter aid which effectively improves the filtering period of the 1-series pure aluminum cold-pressing rolling oil through a specific wood auxiliary agent.
The above purpose of the invention is realized by the following technical scheme:
a1-series pure aluminum foil rolling oil filter aid comprises a wood auxiliary agent, wherein the granularity of the wood auxiliary agent is 1-10000 mu m,
the diameter distance of the wood auxiliary agent is 10-20, the maximum granularity is 1000-7000 mu m,
the mass of the wood auxiliary agent with the granularity of 10-500 mu m accounts for 56-66% of the total mass of the wood auxiliary agent;
the mass of the wood additive with the granularity of 1000-10000 mu m accounts for 33-43% of the total mass of the wood additive;
the mass ratio of the wood auxiliary agent with the granularity of 10-500 mu m to the wood auxiliary agent with the granularity of 1000-10000 mu m is (1.3-2): 1.
in the field of the technology: the radius represents the distribution width of the particles; the larger the pitch, the wider the distribution width.
The filter aid for the 1-series pure aluminum foil rolling oil obtained by strictly controlling the particle size and the distribution of the wood additives can cope with the situation that the size and the shape of aluminum scraps in the 1-series pure aluminum foil rolling oil are complex, changeable and uneven; through controlling the diameter distance of the wood auxiliary agent, the maximum granularity value and the quality relation of the wood auxiliary agent in a specific range, the diversity of the aperture of the filter layer is ensured, the normal passing of fine granularity is not influenced when the foreign matters with larger granularity can be fully filtered, the pressure rise rate of the filter is more gentle, and the filter period is prolonged.
The reason why the radial distance of the wood additive influences the filtration period is as follows: the radial distance = (D (0.9) -D (0.1))/D (0.5), and the numerical value is an important index for measuring the particle size distribution of the wood auxiliary agent particles; when the radial distance is too large, the particle sizes of the particles are dispersed, the number of effective particles for constructing the filter layer is small, and the effectiveness of the filter layer is reduced. When the radial distance is too small, the particle size of particles is concentrated, the structure of the filter layer is single, only a few foreign matters with corresponding sizes can be filtered simultaneously, and the oil quality is poor or the filtering period is shortened.
The reason why the maximum particle size Dv (100) of the wood based additive affects the filtration cycle is that: dv (100) denotes the particle size of the particles with a particle size distribution of 100%, i.e. the volume content of particles smaller than this particle size is 100% of the total particles, and is the maximum particle size value of the particles. The maximum particle size is the upper limit of the particle size of the wood auxiliary agent, if the maximum particle size of the wood auxiliary agent is too small, the particle size of the whole wood auxiliary agent particle is also small, the aperture of a filter layer constructed by the wood auxiliary agent particle is too small, the pressure of the filter rises too fast due to too strong interception capability, and the filtering period is directly shortened. If the maximum particle size of the wood additive is too large, the particle size of the whole wood additive particle is large and dispersed, the number of effective particles for constructing the filter layer is small, the effectiveness of the filter layer is reduced, the filter effect is poor, and finally the filter period is shortened.
The mass ratio of the wood auxiliary agent with the granularity of 10-500 mu m to the wood auxiliary agent with the granularity of 1000-10000 mu m is too large, the wood auxiliary agent with the granularity of 1000-10000 mu m accounts for too little, which means that the whole granularity is too small, the aperture of the constructed filter layer is too small, the interception capability is too strong, the pressure of the filter rises too fast, and the filtering period is obviously shortened.
The mass ratio of the wood auxiliary agent with the granularity of 10-500 mu m to the wood auxiliary agent with the granularity of 1000-10000 mu m is too small, the wood auxiliary agent with the granularity of 1000-10000 mu m is too much, the whole granularity is larger and more dispersed, the number of effective particles for constructing the filter layer is small, the effectiveness of the filter layer is reduced, the filter effect is poor, and the filter period is also obviously shortened.
The 1-series pure aluminum foil rolling oil filter aid can effectively improve the filtering period of rolling oil, is suitable for filtering 1-series aluminum foil rolling oil with high aluminum content, large rolling reduction and high cold rolling speed, and is particularly suitable for filtering 1 XXX-series alloy rolling oil with the aluminum content of more than or equal to 99.00 percent, the average pass reduction rate of 42 percent and the production speed of 800 m/min.
Preferably, the wood additive has a radial distance of 14-18.
Preferably, the maximum particle size of the wood-based additive is 3000-4000 μm.
Preferably, the mass ratio of the wood auxiliary agent with the particle size of 10-500 mu m to the wood auxiliary agent with the particle size of 1000-10000 mu m is (1.4-1.5): 1.
preferably, in the wood auxiliary agents with the particle size of 10-500 mu m, the mass of the wood auxiliary agents with the particle size of 50-500 mu m accounts for 57-66% of the total mass of the wood auxiliary agents;
in the wood auxiliary agent with the granularity of 1000-10000 mu m, the mass of the wood auxiliary agent with the granularity of 1000-3000 mu m accounts for 40-42% of the total mass of the wood auxiliary agent.
The invention also discloses a method for improving the filtration period of the 1-series pure aluminum foil rolling oil, which comprises the following steps:
s1, when the thickness of a produced incoming material is between 0.02mm from cogging to the thickness of a foil rolled aluminum material, uniformly mixing rolling oil to be filtered, the 1-series pure aluminum foil rolled oil filter aid as claimed in any one of claims 1 to 5 and diatomite during precoating, starting filtering to form a filter layer, and finishing precoating; wherein the mass ratio of the filter aid to the diatomite is (0.05-0.25): 1;
s2, when the thickness of the produced foil rolled aluminum material is below 0.02mm, uniformly mixing rolling oil to be filtered and diatomite during precoating, starting filtering to form a filter layer, and finishing precoating;
s3, normal filtration: according to the rolling oil conductivity detection value, the 1-series pure aluminum foil rolling oil filter aid according to any one of claims 1 to 5 is added additionally.
In the process from cogging to foil pre-rolling thickness of 0.02mm, the filtering structure of the wood additive is not firm enough, so the wood additive is easy to deform in use, and the aperture stability of the filtering layer is poor, so the wood additive needs to be matched with diatomite for use. The mass ratio of the wood additive to the diatomite is too large, the aperture of the filter layer is too small, the pressure of the filter rises quickly, and the filtering period is too short, so that the requirements cannot be met. The mass ratio of the wood additive to the diatomite is too small, the aperture of the filter layer is too large, the filtering effect is too poor, and the oil quality is too poor to meet the requirements.
The S1 pre-coating method is suitable for passes with thicker thickness, large reduction and more aluminum powder generated in unit time.
The S2 pre-coating method is suitable for passes with small thickness, small reduction and less aluminum powder generated in unit time.
According to the invention, through the adjustment and control of the pre-coating process, the thickness, firmness and effectiveness of the filtering layer during rolling oil filtration are ensured, and the effective filtration time is increased.
In particular, the method comprises the following steps of,
s1, when the thickness of the produced incoming material is between cogging and 0.02mm, uniformly mixing rolling oil to be filtered, the 1-series pure aluminum foil rolling oil filter aid and diatomite in a stirring barrel during precoating, wherein the mass ratio of the filter aid to the diatomite is (0.05-0.25): 1. then starting the filter to operate for 30min, so that filter layers with stable structure, proper thickness and various pore sizes are formed between the plate layers, and normal filtration production is completed after precoating;
s2, when the thickness of the produced foil rolled aluminum material is less than 0.02mm, uniformly mixing rolling oil to be filtered and diatomite in a stirring barrel during precoating, starting a filter to operate for 30min, forming filter layers with stable structures, proper thicknesses and various pore sizes between plate layers, and finishing normal filtration production after precoating;
and S3, during normal filtration, adjusting the addition of the wood additive according to the conductivity detection value of the rolling oil.
In practical application, the wood auxiliary agent amount can be increased when the conductivity of the rolling oil is increased, and the wood auxiliary agent amount can be reduced. Therefore, the rolling oil is prevented from having low light transmittance due to high conductivity, and the phenomenon of electrostatic ignition due to low conductivity of the rolling oil is avoided.
Preferably, in S1, the mass ratio of the wood auxiliary agent to the diatomite is (0.06-0.16): 1.
in practical applications, the filter aid may be added by detecting the conductivity of the rolling oil.
Preferably, in S3, the conductivity of the rolling oil is more than 1000 ps/m; adding the filter aid accounting for 0.55-1% of the total oil mass of the stirring barrel.
More preferably, in S3, when the conductivity of the rolling oil is 100-1000ps/m, the filter aid accounting for 0.15-0.35% of the total oil mass of the stirring barrel is added.
Preferably, after S3 filtering, the light transmittance of the rolling oil is 92-97%.
Under the condition that rolling oil has certain electric conductivity and can conduct static electricity to ensure that the rolling mill is safe and does not catch fire, the higher the light transmittance is, and the fewer impurities are.
Compared with the prior art, the invention has the beneficial effects that:
according to the 1-series pure aluminum foil rolling oil filter aid, the specific wood auxiliary agent is selected, so that the ash content of an oil product is reduced while the pressure rising speed of a filter is more gradual when 1-series pure aluminum is rolled, the filtering period of 1-series pure aluminum cold-pressing rolling oil is prolonged from 4-6 h/barrel to 12-20 h/barrel, the production cost is reduced and the production efficiency is improved on the premise of ensuring the cleanliness of the rolling oil. But also reduces the using amount of diatomite and argil and reduces the amount of final dangerous waste.
In practical application, the filter aid for pure aluminum foil rolling oil of the invention 1 controls the addition of the wood additive by controlling the electrical conductivity and light transmittance of the rolling oil, prevents static fire of a rolling mill, simultaneously considers the quality of oil products, the safety of the rolling mill and the production cost, and accords with field production.
Drawings
FIG. 1 is a graph of particle size classification versus bulk density for the wood based additive of example 1.
Detailed Description
The present invention will be further described with reference to specific embodiments, but the present invention is not limited to the examples in any way. The starting reagents used in the examples of the present invention are those conventionally purchased, unless otherwise specified.
The raw materials used in the present invention are shown in table 1 below.
TABLE 1
| Type (B) | Manufacturer(s) of | Number plate | Radial distance | Maximum particle size |
| Wood auxiliary agent 1 | Assimilation new material | AC75 | 22 | 10000 |
| Wood auxiliary 2 | Assimilation new material | AC100 | 16.2 | 5500 |
| Wood auxiliary 3 | Assimilation new material | AC175 | 14.7 | 3090 |
The wood auxiliary agents used in the examples and the comparative examples were obtained by filtering and screening the raw materials shown in table 1.
Examples 1 to 6
A1-series pure aluminum foil rolling oil filter aid comprises a wood auxiliary agent, wherein the granularity of the wood auxiliary agent is 1-10000 mu m, the radial distance of the wood auxiliary agent, the maximum granularity of the wood auxiliary agent, the mass percentage of the wood auxiliary agent with the granularity of 10-500 mu m in the total wood auxiliary agent, the mass percentage of the wood auxiliary agent with the granularity of 1000-10000 mu m in the total wood auxiliary agent, and the mass ratio of the wood auxiliary agent with the granularity of 10-500 mu m to the wood auxiliary agent with the granularity of 1000-10000 mu m are shown in the following table 2.
The use method of the 1-series pure aluminum foil rolling oil filter aid comprises the following steps:
s1, when the thickness of a produced incoming material is between 0.02mm from cogging to the thickness of a foil rolled aluminum material, uniformly mixing rolling oil to be filtered, a 1-series pure aluminum foil rolling oil filter aid in a table 2 and diatomite during precoating, starting filtering to form a filter layer, and finishing precoating; the addition amount of the wood-based additive is shown in the following table 2;
s2, when the thickness of the produced foil rolled aluminum material is below 0.02mm, uniformly mixing rolling oil to be filtered and diatomite during precoating, starting filtering to form a filter layer, and finishing precoating;
s3, normal filtration: according to the detection value of the conductivity of the rolling oil, the 1-series pure aluminum foil rolling oil filter aid in the table 2 is supplemented.
TABLE 2
Comparative examples 1 to 8
A1-series pure aluminum foil rolling oil filter aid comprises a wood auxiliary agent, wherein the granularity of the wood auxiliary agent is 1-10000 mu m, the radial distance of the wood auxiliary agent, the maximum granularity of the wood auxiliary agent, the mass percentage of the wood auxiliary agent with the granularity of 10-500 mu m in the total wood auxiliary agent, the mass percentage of the wood auxiliary agent with the granularity of 1000-10000 mu m in the total wood auxiliary agent, and the mass ratio of the wood auxiliary agent with the granularity of 10-500 mu m to the wood auxiliary agent with the granularity of 1000-10000 mu m are shown in the following table 3.
The use method of the 1-series pure aluminum foil rolling oil filter aid comprises the following steps:
s1, when the thickness of a produced incoming material is between 0.02mm from cogging to the thickness of a foil rolled aluminum material, uniformly mixing rolling oil to be filtered, a 1-series pure aluminum foil rolling oil filter aid in a table 2 and diatomite during precoating, starting filtering to form a filter layer, and finishing precoating; the addition amount of the wood-based additive is shown in table 3 below;
s2, when the thickness of the produced foil rolled aluminum material is below 0.02mm, uniformly mixing rolling oil to be filtered and diatomite during precoating, starting filtering to form a filter layer, and finishing precoating;
s3, normal filtration: according to the detection value of the conductivity of the rolling oil, the 1-series pure aluminum foil rolling oil filter aid in the table 3 is supplemented.
TABLE 3
TABLE 3
Result detection
The above examples and comparative examples, series 1 pure aluminum foil rolling oil filter aids, were tested by the following performance test methods:
the radial distance of the wood auxiliary agent is as follows: radius distance = (D (0.9) -D (0.1))/D (0.5), laser particle size analyzer test.
Maximum particle size of wood-based auxiliary agent: testing by an Ms3000 laser particle size analyzer.
The total mass of the wood auxiliary agent is measured by an electronic balance, and the mass calculation method of the wood auxiliary agent with specific granularity or granularity interval comprises the following steps: a curve diagram is drawn by a laser particle size analyzer with the particle size as the abscissa and the volume density as the ordinate. The mass of the wood auxiliary agent with the specific granularity is the product of the volume density fraction and the total mass, and the mass of the wood auxiliary agent in the specific granularity interval is the product of the accumulated value of all the volume densities in the granularity interval and the total mass.
The quality of the rolling oil is expressed by the light transmittance, the higher the light transmittance, the less the impurities.
The specific detection results are described in table 4 below:
TABLE 4
| Serial number | Single bucket oil filtration duration (h) | Rolling oil transmittance (%) |
| Example 1 | 20 | 97 |
| Example 2 | 14.5 | 91 |
| Example 3 | 17.8 | 93 |
| Example 4 | 16.7 | 90 |
| Example 5 | 14.4 | 91 |
| Example 6 | 15.4 | 95 |
| Comparative example 1 | 5.6 | 95 |
| Comparative example 2 | 4.8 | 92 |
| Comparative example 3 | 4.1 | 88 |
| Comparative example 4 | 5.2 | 86 |
| Comparative example 5 | 4.3 | 83 |
| Comparative example 6 | 4.5 | 84 |
| Comparative example 7 | 4.4 | 82 |
| Comparative example 8 | 5.3 | 85 |
The data show that the filtration period of the 1-series pure aluminum cold rolling oil is prolonged from 4-6 h/barrel to 12-20 h/barrel by the aid of the 1-series pure aluminum foil rolling oil filter aid, and the filtration period of the 1-series pure aluminum cold rolling oil is effectively prolonged.
It can be seen from the embodiments 1 to 6 that the wood additive has a small radius distance and a moderate maximum particle size, and the content and ratio of the small particle size and the large particle size are reasonable, and the pre-coating and adding method is optimized, so that the thickness of the constructed filter layer is moderate, the firmness is good, the pore structure comprises diversified filter pores such as small pore size and large pore size, the pressure rise speed of the filter is gentle while the filter effect is good, the filter period is longer, and the light transmittance is higher.
As can be seen from comparative example 1, the wood-based additive has a small diametral distance and a small maximum particle size value, a small overall particle size, and a short final filtration cycle.
As can be seen from comparative example 2, the mass of the wood-based additive having a particle size of 10 to 500 μm in the wood-based additive accounts for an excessively large percentage of the total mass of the wood-based additive, and the final filtration cycle is excessively short.
As can be seen from comparative example 3, no wood additive was added during the precoating, the toughness and adsorptivity of the filter layer were insufficient, the final rolling oil had low light transmittance, and the filtration cycle was short.
As can be seen from comparative example 4, the wood-based additive has too large a pitch and too short a filtration cycle.
As can be seen from comparative example 5, the maximum particle size of the wood-based additive was too large and the filtration cycle was too short.
As can be seen from comparative example 6, the mass of the wood-based additive having a particle size of 10 to 500 μm is too small as a percentage of the total mass of the wood-based additive, and the filtration cycle is too short.
As can be seen from comparative example 7, the mass ratio of the wood-based additive having a particle size of 10 to 500 μm to the wood-based additive having a particle size of 1000 to 10000 μm was too small, and the filtration cycle was too short.
As can be seen from comparative example 8, the mass ratio of the wood-based additive having a particle size of 10 to 500 μm to the wood-based additive having a particle size of 1000 to 10000 μm was too large, and the filtration cycle was too short.
The addition amount of the added wood is controlled by controlling the conductivity and the light transmittance of the rolling oil, so that the method can be applied to specific actual production.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The 1-series pure aluminum foil rolling oil filter aid is characterized by comprising a wood auxiliary agent, wherein the granularity of the wood auxiliary agent is 1-10000 mu m,
the diameter distance of the wood auxiliary agent is 10-20, the maximum granularity is 1000-7000 mu m,
the mass of the wood additives with the granularity of 10-500 mu m accounts for 56-66% of the total mass of the wood additives;
the mass of the wood auxiliary agent with the granularity of 1000-10000 mu m accounts for 33-43% of the total mass of the wood auxiliary agent;
the mass ratio of the wood auxiliary agent with the granularity of 10-500 mu m to the wood auxiliary agent with the granularity of 1000-10000 mu m is (1.3-2): 1.
2. the pure aluminum foil rolling oil filter aid of claim 1, wherein the wood-based additive has a caliper of 14 to 18.
3. The pure aluminum foil rolling oil filter aid of claim 1, wherein the wood promoter has a maximum particle size of 3000 to 4000 μm.
4. The filter aid for pure aluminum foil rolling oil according to claim 1, wherein the mass ratio of the wood-based additive having a particle size of 10 to 500 μm to the wood-based additive having a particle size of 1000 to 10000 μm is (1.4 to 1.5): 1.
5. the filter aid for pure aluminum foil rolling oil according to claim 1, wherein the mass of the wood additives with the particle size of 50-100 μm accounts for 57-66% of the total mass of the wood additives, among the wood additives with the particle size of 1000-10000 μm;
in the wood auxiliary agent with the granularity of 1000-10000 mu m, the mass of the wood auxiliary agent with the granularity of 1000-3000 mu m accounts for 40-42% of the total mass of the wood auxiliary agent.
6. A method for improving the filtration cycle of 1-series pure aluminum foil rolling oil is characterized by comprising the following steps:
s1, when the thickness of a produced incoming material is between 0.02mm from cogging to the thickness of a foil rolled aluminum material, uniformly mixing rolling oil to be filtered, the 1-series pure aluminum foil rolled oil filter aid as claimed in any one of claims 1 to 5 and diatomite during precoating, starting filtering to form a filter layer, and finishing precoating; wherein the mass ratio of the filter aid to the diatomite is (0.05-0.25): 1;
when the thickness of the produced foil rolled aluminum material is below 0.02mm, uniformly mixing rolling oil to be filtered and diatomite during precoating, starting to filter to form a filter layer, and finishing precoating;
s2, normal filtration: according to the rolling oil conductivity detection value, the 1-series pure aluminum foil rolling oil filter aid according to any one of claims 1 to 5 is added additionally.
7. The method for improving the filtration cycle of 1-series pure aluminum foil rolling oil according to claim 6, wherein the mass ratio of the filter aid to the diatomite in S1 is (0.06-0.16)): 1.
8. the method for improving the filtration cycle of 1-series pure aluminum foil rolling oil according to claim 6, wherein the filter aid is added in a mass fraction of 0.1-0.55% of the total oil in the stirring tank when the conductivity of the rolling oil is more than 1000ps/m in S3.
9. The method for improving the filtration cycle of 1-series pure aluminum foil rolling oil according to claim 6, wherein the filter aid is added in a mass fraction of 0.15-0.35% of the total oil amount in the stirring tank at the time of S3 when the conductivity of the rolling oil is 100-1000 ps/m.
10. The method for improving the filtration cycle of 1-series pure aluminum foil rolling oil according to claim 6, wherein after S3 filtration, the light transmittance of the rolling oil is 92-97%.
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