NO149895B - OIL-IN-WATER EMULSION FOR COLD ROLLING OF LIGHT METALS - Google Patents
OIL-IN-WATER EMULSION FOR COLD ROLLING OF LIGHT METALS Download PDFInfo
- Publication number
- NO149895B NO149895B NO813076A NO813076A NO149895B NO 149895 B NO149895 B NO 149895B NO 813076 A NO813076 A NO 813076A NO 813076 A NO813076 A NO 813076A NO 149895 B NO149895 B NO 149895B
- Authority
- NO
- Norway
- Prior art keywords
- parts
- weight
- emulsion
- oil
- water
- Prior art date
Links
- 229910052751 metal Inorganic materials 0.000 title claims description 7
- 239000002184 metal Substances 0.000 title claims description 7
- 239000007764 o/w emulsion Substances 0.000 title claims description 7
- 150000002739 metals Chemical class 0.000 title description 4
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 21
- 239000000839 emulsion Substances 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 230000015572 biosynthetic process Effects 0.000 claims description 9
- FBPFZTCFMRRESA-FSIIMWSLSA-N D-Glucitol Natural products OC[C@H](O)[C@H](O)[C@@H](O)[C@H](O)CO FBPFZTCFMRRESA-FSIIMWSLSA-N 0.000 claims description 8
- TVXBFESIOXBWNM-UHFFFAOYSA-N Xylitol Natural products OCCC(O)C(O)C(O)CCO TVXBFESIOXBWNM-UHFFFAOYSA-N 0.000 claims description 8
- 239000003112 inhibitor Substances 0.000 claims description 8
- HEBKCHPVOIAQTA-UHFFFAOYSA-N meso ribitol Natural products OCC(O)C(O)C(O)CO HEBKCHPVOIAQTA-UHFFFAOYSA-N 0.000 claims description 8
- 239000000600 sorbitol Substances 0.000 claims description 8
- 239000000811 xylitol Substances 0.000 claims description 8
- HEBKCHPVOIAQTA-SCDXWVJYSA-N xylitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)CO HEBKCHPVOIAQTA-SCDXWVJYSA-N 0.000 claims description 8
- 229960002675 xylitol Drugs 0.000 claims description 8
- 235000010447 xylitol Nutrition 0.000 claims description 8
- FBPFZTCFMRRESA-JGWLITMVSA-N D-glucitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)[C@H](O)CO FBPFZTCFMRRESA-JGWLITMVSA-N 0.000 claims description 7
- 238000005097 cold rolling Methods 0.000 claims description 7
- 229910052782 aluminium Inorganic materials 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- VKYKSIONXSXAKP-UHFFFAOYSA-N hexamethylenetetramine Chemical compound C1N(C2)CN3CN1CN2C3 VKYKSIONXSXAKP-UHFFFAOYSA-N 0.000 claims description 6
- -1 alkyl monocarboxylic acid esters Chemical class 0.000 claims description 4
- 239000008367 deionised water Substances 0.000 claims description 4
- 229910021641 deionized water Inorganic materials 0.000 claims description 4
- JNYAEWCLZODPBN-JGWLITMVSA-N (2r,3r,4s)-2-[(1r)-1,2-dihydroxyethyl]oxolane-3,4-diol Polymers OC[C@@H](O)[C@H]1OC[C@H](O)[C@H]1O JNYAEWCLZODPBN-JGWLITMVSA-N 0.000 claims description 3
- JNYAEWCLZODPBN-UHFFFAOYSA-N 2-(1,2-dihydroxyethyl)oxolane-3,4-diol Polymers OCC(O)C1OCC(O)C1O JNYAEWCLZODPBN-UHFFFAOYSA-N 0.000 claims description 3
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 229920002367 Polyisobutene Polymers 0.000 claims description 3
- 230000000844 anti-bacterial effect Effects 0.000 claims description 3
- 239000003899 bactericide agent Substances 0.000 claims description 3
- 239000003995 emulsifying agent Substances 0.000 claims description 3
- 230000000855 fungicidal effect Effects 0.000 claims description 3
- 239000000417 fungicide Substances 0.000 claims description 3
- 235000010299 hexamethylene tetramine Nutrition 0.000 claims description 3
- 239000004312 hexamethylene tetramine Substances 0.000 claims description 3
- 239000001257 hydrogen Substances 0.000 claims description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 3
- 229960004011 methenamine Drugs 0.000 claims description 3
- JNYAEWCLZODPBN-CTQIIAAMSA-N sorbitan Polymers OCC(O)C1OCC(O)[C@@H]1O JNYAEWCLZODPBN-CTQIIAAMSA-N 0.000 claims description 3
- 239000003381 stabilizer Substances 0.000 claims description 3
- 239000004927 clay Substances 0.000 claims 1
- 238000005096 rolling process Methods 0.000 description 5
- 238000000137 annealing Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Landscapes
- Lubricants (AREA)
Description
Foreliggende oppfinnelse vedrører en olje-i-vann-emulsjon The present invention relates to an oil-in-water emulsion
for koldvalsing av lettmetaller, spesielt aluminium og alu-miniumlegering, med f.eks. polyisobutylen som hydrodynamisk filmdanner, alkylmonokarboksylsyre-estere som reaksjonssjiktdannere, polyetoksylerte sorbitanoleater som emulgeringsmiddel, umettede langkjedede alkyl-monokarboksylsyrer som inhibitor mot hydrogensprøhet og rustdannelse, heksametylen-tetramin som stabilisator, fungicid og baktericid såvel som deionisert vann, og det særegne ved emulsjonen i henhold til oppfinnelsen er at emulsjonen ytterligere som inhibitor mot vannflekkdannelse inneholder xylitol og sorbitol i mengder slik at 1000 vektdeler emulsjon inneholder 1-30 vektdeler av hver av komponentene xylitol og sorbitol, og eventuelt også glycerol i en mengde slik at 1000 vektdeler emulsjon inneholder 20-90 vektdeler glycerol. for cold rolling of light metals, especially aluminum and aluminum alloy, with e.g. polyisobutylene as a hydrodynamic film former, alkyl monocarboxylic acid esters as reaction layer formers, polyethoxylated sorbitan oilates as an emulsifier, unsaturated long-chain alkyl monocarboxylic acids as an inhibitor against hydrogen embrittlement and rust formation, hexamethylene tetramine as a stabilizer, fungicide and bactericide as well as deionized water, and the peculiarity of the emulsion according to the invention is that the emulsion further, as an inhibitor against water spot formation, contains xylitol and sorbitol in amounts such that 1,000 parts by weight emulsion contains 1-30 parts by weight of each of the components xylitol and sorbitol, and possibly also glycerol in an amount such that 1,000 parts by weight emulsion contains 20-90 parts by weight glycerol.
Sammenlignet med valsesmøre-midler på oljebasis muliggjør olje-i-vann-emulsjoner på grunn av den større fordampnings-varrae av vannet en mye bedre kjøling og dermed en større dimensjonsreduksjon og/eller forhøyet valsehastighet. Ved siden av disse rent økonomiske faktorer, som i stor grad ° imøtekommer rasjonaliseringsbestrebelser,må det videre tas hensyn til at vandige valsemidler stiller sterkt reduserte avluftproblemer og er mindre avhengige av jordoljeprodukter. Derfor er det i lettmetallindustrien, spesielt i aluminium-industrien, foretatt mange forsøk med å anvende olje-i-vann-emuls joner ved koldvalsing av bånd. Compared to oil-based roller lubricants, oil-in-water emulsions, due to the greater evaporation varrae of the water, enable much better cooling and thus a greater dimensional reduction and/or increased roller speed. Alongside these purely economic factors, which to a great extent ° accommodate rationalization efforts, it must also be taken into account that aqueous rolling media pose greatly reduced exhaust air problems and are less dependent on petroleum products. Therefore, in the light metal industry, especially in the aluminum industry, many attempts have been made to use oil-in-water emulsions when cold rolling strips.
Fra DE 26 32 142 er det kjent en olje-i-vann-emulsjon for koldvalsing av lettmetaller, som inneholder alkyl-mono-karboksylsyreestere som reaksjonssjiktdannere, poly-isobutylen som hydrodynamisk filmdanner, polyetoksylerte sorbitanoleater som emulgeringsmiddel, umettede, langkjedede alkyl-mono-karboksylsyre som inhibitor mot hydrogensprøhet, og rustdannelse, heksametylentetramin som stabilisator, fungicid og baktericid og resten deionisert vann. . En vesentlig ulempe ved den til teknikkens stand hørende olje-i-vann-emulsjon lider derav at den med valseprosessen frembragte friske metalloverflate i løpet av få sekunder reagerer med vann. Dette overflatemessige korrosjonsan-grep som følge av vannfasen fører til forstyrrende flekker på båndoverflaten. Den ved dannelsen av disse såkalte vannflekker reduserte overflatekvalitet av et bånd henholds-vis en folie er utilstrekkelig for mange anvendelsesformål og det er derfor ved anvendelse av kjente olje-i-vann-emuls joner ubetinget nødvendig at emulsjonen umiddelbart etter utgangen av båndet fra valseverket i størst mulig utstrekning fullstendig fjernes fra den valsede båndoverflate f.eks. ved avblåsing med trykkluft. From DE 26 32 142 an oil-in-water emulsion for cold rolling of light metals is known, which contains alkyl-mono-carboxylic acid esters as reaction layer formers, poly-isobutylene as hydrodynamic film former, polyethoxylated sorbitan oilates as emulsifier, unsaturated, long-chain alkyl-mono- carboxylic acid as an inhibitor against hydrogen embrittlement and rust formation, hexamethylenetetramine as a stabilizer, fungicide and bactericide and the rest deionized water. . A significant disadvantage of the state-of-the-art oil-in-water emulsion is that the fresh metal surface produced by the rolling process reacts with water within a few seconds. This surface corrosion attack as a result of the water phase leads to disturbing spots on the strip surface. The reduced surface quality of a strip or a foil due to the formation of these so-called water spots is insufficient for many purposes and it is therefore absolutely necessary when using known oil-in-water emulsions that the emulsion immediately after the strip leaves the rolling mill in the largest possible extent is completely removed from the rolled strip surface, e.g. by blowing off with compressed air.
Det er et formål for den foreliggende oppfinnelse å frem-skaffe en olje-i-vann-emulsjon av den nevnte type for koldvalsing av lettmetaller, spesielt aluminium og aluminiumlegeringer, hvor dannelsen av vannflekker på den valsede friske båndoverflate kan reduseres. It is an object of the present invention to provide an oil-in-water emulsion of the aforementioned type for cold rolling of light metals, especially aluminum and aluminum alloys, where the formation of water stains on the rolled fresh strip surface can be reduced.
Ved den samtidige tilsetning av xylitol <p>g sorbitol til en olje-i-vann-emulsjon hindres dannelsen av vannflekker i stor utstrekning. En fjernelse av emulsjonen fra den friske overflate av de valsede bånd er således ikke lenger nød-vendig. Inhibitoren er allerede fullt virksom når 1000 vektdeler emulsjon inneholder 1-30 vektdeler av hver av komponentene xylitol og sorbitol. The simultaneous addition of xylitol <p>g sorbitol to an oil-in-water emulsion prevents the formation of water spots to a large extent. A removal of the emulsion from the fresh surface of the rolled strips is thus no longer necessary. The inhibitor is already fully effective when 1000 parts by weight emulsion contains 1-30 parts by weight of each of the components xylitol and sorbitol.
Det har videre vist seg at virkningen av den med xylitol og sorbitol sammensatte inhibitor ytterligere kan økes ved tilsetning av glycerol i mengde slik at 1000 vektdeler emulsjon inneholder 20-90 vektdeler glycerol. It has also been shown that the effect of the inhibitor composed of xylitol and sorbitol can be further increased by adding glycerol in an amount such that 1000 parts by weight emulsion contains 20-90 parts by weight glycerol.
Tilsetningen av xylitol og sorbitol og eventuelt glycerol påvirker ikke valseprosessen og fører ved en etterfølgende glødning av de valsede bånd heller ikke til rester på båndoverflaten. The addition of xylitol and sorbitol and possibly glycerol does not affect the rolling process and, in the case of subsequent annealing of the rolled strips, does not lead to residues on the strip surface either.
Fordelene ved tilsetningene av inhibitorer i henhold til oppfinnelsen mot vannflekkdannelse fremgår av forsøkene med de i de etterfølgende anførte koldvalseemulsjoner. The advantages of the addition of inhibitors according to the invention against water spot formation are evident from the experiments with the cold rolling emulsions listed below.
Eksempel 1 Example 1
Eksempel 2 Example 2
Eksempel 3 Example 3
De organiske komponenter innføres ved romtemperatur under enkel omrøring og tilsettes deionisert vann. De to ad-skilte faser blir deretter forarbeidet i en emulgerings-maskin til en emulsjon. The organic components are introduced at room temperature with simple stirring and deionized water is added. The two separate phases are then processed in an emulsification machine into an emulsion.
Med de i det foregående nevnte emulsjoner, ble det på en enkel-kvarto-valsestol gjennomfør koldvalseforsøk med aluminium med renhet Al 99,2. Tykkelsesreduksjonene ut-gjorde delvis opptil 92%. På de valsede aluminiumbånd kunne vannflekkdannelse ikke i noe tilfelle iaktas. Likeldes førte ingen av emulsjonene ved den etterfølgende glødning av de valsede bånd til rester på båndoverflaten. With the previously mentioned emulsions, cold rolling tests with aluminum with purity Al 99.2 were carried out on a single-quarto rolling stand. The thickness reductions were partly up to 92%. On the rolled aluminum strips, water spot formation could not be observed in any case. Likewise, none of the emulsions led to residues on the strip surface during the subsequent annealing of the rolled strips.
Claims (1)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH686380 | 1980-09-12 |
Publications (3)
Publication Number | Publication Date |
---|---|
NO813076L NO813076L (en) | 1982-03-15 |
NO149895B true NO149895B (en) | 1984-04-02 |
NO149895C NO149895C (en) | 1984-07-11 |
Family
ID=4316213
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO813076A NO149895C (en) | 1980-09-12 | 1981-09-10 | OIL-IN-WATER EMULSION FOR COLD ROLLING OF LIGHT METALS |
Country Status (3)
Country | Link |
---|---|
NO (1) | NO149895C (en) |
NZ (1) | NZ198120A (en) |
PL (1) | PL127926B1 (en) |
-
1981
- 1981-08-21 NZ NZ19812081A patent/NZ198120A/en unknown
- 1981-09-09 PL PL23296381A patent/PL127926B1/en unknown
- 1981-09-10 NO NO813076A patent/NO149895C/en unknown
Also Published As
Publication number | Publication date |
---|---|
NO149895C (en) | 1984-07-11 |
NZ198120A (en) | 1983-11-18 |
PL127926B1 (en) | 1983-12-31 |
PL232963A1 (en) | 1982-05-24 |
NO813076L (en) | 1982-03-15 |
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