EP3162918A1 - Procédé de production d'une tôle d'acier - Google Patents
Procédé de production d'une tôle d'acier Download PDFInfo
- Publication number
- EP3162918A1 EP3162918A1 EP14896099.0A EP14896099A EP3162918A1 EP 3162918 A1 EP3162918 A1 EP 3162918A1 EP 14896099 A EP14896099 A EP 14896099A EP 3162918 A1 EP3162918 A1 EP 3162918A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rinsing
- steel sheet
- less
- mmol
- agent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 227
- 239000010959 steel Substances 0.000 title claims abstract description 227
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 55
- 150000001768 cations Chemical class 0.000 claims abstract description 89
- 238000011282 treatment Methods 0.000 claims abstract description 83
- 238000004140 cleaning Methods 0.000 claims abstract description 80
- 238000001035 drying Methods 0.000 claims abstract description 69
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 claims abstract description 39
- 229910017053 inorganic salt Inorganic materials 0.000 claims abstract description 32
- 238000005097 cold rolling Methods 0.000 claims abstract description 8
- 239000003795 chemical substances by application Substances 0.000 claims description 209
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 147
- 125000004432 carbon atom Chemical group C* 0.000 claims description 62
- -1 alkali metal salt Chemical class 0.000 claims description 42
- 239000007921 spray Substances 0.000 claims description 37
- 125000001183 hydrocarbyl group Chemical group 0.000 claims description 27
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 26
- 150000001875 compounds Chemical class 0.000 claims description 17
- 238000005259 measurement Methods 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 11
- 150000002891 organic anions Chemical class 0.000 claims description 10
- 238000002360 preparation method Methods 0.000 claims description 8
- 150000001449 anionic compounds Chemical class 0.000 claims description 7
- 239000008367 deionised water Substances 0.000 claims description 7
- 229910021641 deionized water Inorganic materials 0.000 claims description 7
- 229910001412 inorganic anion Inorganic materials 0.000 claims description 7
- 229910052783 alkali metal Inorganic materials 0.000 claims description 4
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 4
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims description 4
- 238000004065 wastewater treatment Methods 0.000 abstract description 5
- 238000012360 testing method Methods 0.000 description 50
- 239000003599 detergent Substances 0.000 description 42
- 238000000034 method Methods 0.000 description 40
- 239000002253 acid Substances 0.000 description 20
- 230000000052 comparative effect Effects 0.000 description 19
- 238000007654 immersion Methods 0.000 description 19
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 16
- 239000008235 industrial water Substances 0.000 description 11
- 125000003342 alkenyl group Chemical group 0.000 description 10
- 125000000217 alkyl group Chemical group 0.000 description 10
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 9
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 description 8
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 8
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 8
- 239000003513 alkali Substances 0.000 description 8
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- 150000003839 salts Chemical class 0.000 description 8
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- NLGOTHQMVKZTBP-KVVVOXFISA-N acetic acid;(z)-octadec-9-en-1-amine Chemical compound CC(O)=O.CCCCCCCC\C=C/CCCCCCCCN NLGOTHQMVKZTBP-KVVVOXFISA-N 0.000 description 7
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- 239000007789 gas Substances 0.000 description 6
- 125000001117 oleyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])/C([H])=C([H])\C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 6
- 230000003405 preventing effect Effects 0.000 description 6
- 238000005507 spraying Methods 0.000 description 6
- 238000011156 evaluation Methods 0.000 description 5
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 5
- 239000002736 nonionic surfactant Substances 0.000 description 5
- 239000005871 repellent Substances 0.000 description 5
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 4
- ROSDSFDQCJNGOL-UHFFFAOYSA-N Dimethylamine Chemical compound CNC ROSDSFDQCJNGOL-UHFFFAOYSA-N 0.000 description 4
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- BAVYZALUXZFZLV-UHFFFAOYSA-N Methylamine Chemical compound NC BAVYZALUXZFZLV-UHFFFAOYSA-N 0.000 description 4
- ANRCSZILOHNONR-UHFFFAOYSA-N acetic acid;hexadecan-1-amine Chemical compound CC([O-])=O.CCCCCCCCCCCCCCCC[NH3+] ANRCSZILOHNONR-UHFFFAOYSA-N 0.000 description 4
- 150000003973 alkyl amines Chemical class 0.000 description 4
- 125000002511 behenyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 4
- 239000001110 calcium chloride Substances 0.000 description 4
- 229910001628 calcium chloride Inorganic materials 0.000 description 4
- 150000004649 carbonic acid derivatives Chemical class 0.000 description 4
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 229910001629 magnesium chloride Inorganic materials 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 239000003921 oil Substances 0.000 description 4
- 239000001103 potassium chloride Substances 0.000 description 4
- 235000011164 potassium chloride Nutrition 0.000 description 4
- 239000010731 rolling oil Substances 0.000 description 4
- 229910000029 sodium carbonate Inorganic materials 0.000 description 4
- 239000011780 sodium chloride Substances 0.000 description 4
- 239000004317 sodium nitrate Substances 0.000 description 4
- 235000010344 sodium nitrate Nutrition 0.000 description 4
- 125000002889 tridecyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 4
- QGLWBTPVKHMVHM-KTKRTIGZSA-N (z)-octadec-9-en-1-amine Chemical compound CCCCCCCC\C=C/CCCCCCCCN QGLWBTPVKHMVHM-KTKRTIGZSA-N 0.000 description 3
- LPJKDVHMUUZHRY-KVVVOXFISA-N (z)-octadec-9-en-1-amine;hydrochloride Chemical compound Cl.CCCCCCCC\C=C/CCCCCCCCN LPJKDVHMUUZHRY-KVVVOXFISA-N 0.000 description 3
- LXSONVMWFDONLV-UHFFFAOYSA-N acetic acid;docosan-1-amine Chemical compound CC(O)=O.CCCCCCCCCCCCCCCCCCCCCCN LXSONVMWFDONLV-UHFFFAOYSA-N 0.000 description 3
- HSULLSUSGAHAOJ-UHFFFAOYSA-N acetic acid;hexan-1-amine Chemical compound CC([O-])=O.CCCCCC[NH3+] HSULLSUSGAHAOJ-UHFFFAOYSA-N 0.000 description 3
- 150000001767 cationic compounds Chemical class 0.000 description 3
- 239000002738 chelating agent Substances 0.000 description 3
- 150000001805 chlorine compounds Chemical class 0.000 description 3
- TWFQJFPTTMIETC-UHFFFAOYSA-N dodecan-1-amine;hydron;chloride Chemical compound [Cl-].CCCCCCCCCCCC[NH3+] TWFQJFPTTMIETC-UHFFFAOYSA-N 0.000 description 3
- 238000005868 electrolysis reaction Methods 0.000 description 3
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 3
- RNYJXPUAFDFIQJ-UHFFFAOYSA-N hydron;octadecan-1-amine;chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCC[NH3+] RNYJXPUAFDFIQJ-UHFFFAOYSA-N 0.000 description 3
- 238000005342 ion exchange Methods 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 150000002823 nitrates Chemical class 0.000 description 3
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 3
- HNSDLXPSAYFUHK-UHFFFAOYSA-N 1,4-bis(2-ethylhexyl) sulfosuccinate Chemical compound CCCCC(CC)COC(=O)CC(S(O)(=O)=O)C(=O)OCC(CC)CCCC HNSDLXPSAYFUHK-UHFFFAOYSA-N 0.000 description 2
- CPELXLSAUQHCOX-UHFFFAOYSA-M Bromide Chemical compound [Br-] CPELXLSAUQHCOX-UHFFFAOYSA-M 0.000 description 2
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 2
- VZCYOOQTPOCHFL-OWOJBTEDSA-N Fumaric acid Chemical compound OC(=O)\C=C\C(O)=O VZCYOOQTPOCHFL-OWOJBTEDSA-N 0.000 description 2
- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- NPYPAHLBTDXSSS-UHFFFAOYSA-N Potassium ion Chemical compound [K+] NPYPAHLBTDXSSS-UHFFFAOYSA-N 0.000 description 2
- FKNQFGJONOIPTF-UHFFFAOYSA-N Sodium cation Chemical compound [Na+] FKNQFGJONOIPTF-UHFFFAOYSA-N 0.000 description 2
- VBIIFPGSPJYLRR-UHFFFAOYSA-M Stearyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCC[N+](C)(C)C VBIIFPGSPJYLRR-UHFFFAOYSA-M 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- WNLRTRBMVRJNCN-UHFFFAOYSA-N adipic acid Chemical compound OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 2
- 150000007933 aliphatic carboxylic acids Chemical class 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 150000001412 amines Chemical class 0.000 description 2
- 239000002518 antifoaming agent Substances 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 229940006460 bromide ion Drugs 0.000 description 2
- GZUXJHMPEANEGY-UHFFFAOYSA-N bromomethane Chemical compound BrC GZUXJHMPEANEGY-UHFFFAOYSA-N 0.000 description 2
- 230000001680 brushing effect Effects 0.000 description 2
- 229910001424 calcium ion Inorganic materials 0.000 description 2
- 235000015165 citric acid Nutrition 0.000 description 2
- 239000010960 cold rolled steel Substances 0.000 description 2
- 238000011109 contamination Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 125000002704 decyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- HBRNMIYLJIXXEE-UHFFFAOYSA-N dodecylazanium;acetate Chemical compound CC(O)=O.CCCCCCCCCCCCN HBRNMIYLJIXXEE-UHFFFAOYSA-N 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- ZWGTVKDEOPDFGW-UHFFFAOYSA-N hexadecylazanium;chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[NH3+] ZWGTVKDEOPDFGW-UHFFFAOYSA-N 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 2
- 239000004310 lactic acid Substances 0.000 description 2
- 235000014655 lactic acid Nutrition 0.000 description 2
- 229910001425 magnesium ion Inorganic materials 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- UPHWVVKYDQHTCF-UHFFFAOYSA-N octadecylazanium;acetate Chemical compound CC(O)=O.CCCCCCCCCCCCCCCCCCN UPHWVVKYDQHTCF-UHFFFAOYSA-N 0.000 description 2
- NSJANQIGFSGFFN-UHFFFAOYSA-N octylazanium;acetate Chemical compound CC([O-])=O.CCCCCCCC[NH3+] NSJANQIGFSGFFN-UHFFFAOYSA-N 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 229910001414 potassium ion Inorganic materials 0.000 description 2
- 239000003755 preservative agent Substances 0.000 description 2
- 230000002335 preservative effect Effects 0.000 description 2
- 150000003242 quaternary ammonium salts Chemical class 0.000 description 2
- 239000008237 rinsing water Substances 0.000 description 2
- 239000000344 soap Substances 0.000 description 2
- 229910001415 sodium ion Inorganic materials 0.000 description 2
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 2
- 238000001179 sorption measurement Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- KDYFGRWQOYBRFD-UHFFFAOYSA-N succinic acid Chemical compound OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 2
- VZCYOOQTPOCHFL-UHFFFAOYSA-N trans-butenedioic acid Natural products OC(=O)C=CC(O)=O VZCYOOQTPOCHFL-UHFFFAOYSA-N 0.000 description 2
- DCNHQNGFLVPROM-QXMHVHEDSA-N (z)-n,n-dimethyloctadec-9-en-1-amine Chemical compound CCCCCCCC\C=C/CCCCCCCCN(C)C DCNHQNGFLVPROM-QXMHVHEDSA-N 0.000 description 1
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 description 1
- FJLUATLTXUNBOT-UHFFFAOYSA-N 1-Hexadecylamine Chemical compound CCCCCCCCCCCCCCCCN FJLUATLTXUNBOT-UHFFFAOYSA-N 0.000 description 1
- AEQDJSLRWYMAQI-UHFFFAOYSA-N 2,3,9,10-tetramethoxy-6,8,13,13a-tetrahydro-5H-isoquinolino[2,1-b]isoquinoline Chemical compound C1CN2CC(C(=C(OC)C=C3)OC)=C3CC2C2=C1C=C(OC)C(OC)=C2 AEQDJSLRWYMAQI-UHFFFAOYSA-N 0.000 description 1
- LBLYYCQCTBFVLH-UHFFFAOYSA-N 2-Methylbenzenesulfonic acid Chemical compound CC1=CC=CC=C1S(O)(=O)=O LBLYYCQCTBFVLH-UHFFFAOYSA-N 0.000 description 1
- OBMBUODDCOAJQP-UHFFFAOYSA-N 2-chloro-4-phenylquinoline Chemical compound C=12C=CC=CC2=NC(Cl)=CC=1C1=CC=CC=C1 OBMBUODDCOAJQP-UHFFFAOYSA-N 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- JMHWNJGXUIJPKG-UHFFFAOYSA-N CC(=O)O[SiH](CC=C)OC(C)=O Chemical compound CC(=O)O[SiH](CC=C)OC(C)=O JMHWNJGXUIJPKG-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 1
- ZGTMUACCHSMWAC-UHFFFAOYSA-L EDTA disodium salt (anhydrous) Chemical compound [Na+].[Na+].OC(=O)CN(CC([O-])=O)CCN(CC(O)=O)CC([O-])=O ZGTMUACCHSMWAC-UHFFFAOYSA-L 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- REYJJPSVUYRZGE-UHFFFAOYSA-N Octadecylamine Chemical compound CCCCCCCCCCCCCCCCCCN REYJJPSVUYRZGE-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 1
- PLZVEHJLHYMBBY-UHFFFAOYSA-N Tetradecylamine Chemical compound CCCCCCCCCCCCCCN PLZVEHJLHYMBBY-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 150000001242 acetic acid derivatives Chemical class 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 229910001413 alkali metal ion Inorganic materials 0.000 description 1
- 229910001420 alkaline earth metal ion Inorganic materials 0.000 description 1
- 125000005210 alkyl ammonium group Chemical group 0.000 description 1
- 125000005910 alkyl carbonate group Chemical group 0.000 description 1
- 150000005215 alkyl ethers Chemical class 0.000 description 1
- 150000001350 alkyl halides Chemical class 0.000 description 1
- 125000005211 alkyl trimethyl ammonium group Chemical group 0.000 description 1
- 230000029936 alkylation Effects 0.000 description 1
- 238000005804 alkylation reaction Methods 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000003254 anti-foaming effect Effects 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- YSJGOMATDFSEED-UHFFFAOYSA-M behentrimonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCCCCCC[N+](C)(C)C YSJGOMATDFSEED-UHFFFAOYSA-M 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- 150000001642 boronic acid derivatives Chemical class 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- WOWHHFRSBJGXCM-UHFFFAOYSA-M cetyltrimethylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCC[N+](C)(C)C WOWHHFRSBJGXCM-UHFFFAOYSA-M 0.000 description 1
- 239000013522 chelant Substances 0.000 description 1
- NEHMKBQYUWJMIP-NJFSPNSNSA-N chloro(114C)methane Chemical compound [14CH3]Cl NEHMKBQYUWJMIP-NJFSPNSNSA-N 0.000 description 1
- HRYZWHHZPQKTII-UHFFFAOYSA-N chloroethane Chemical compound CCCl HRYZWHHZPQKTII-UHFFFAOYSA-N 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 125000005131 dialkylammonium group Chemical group 0.000 description 1
- WLCFKPHMRNPAFZ-UHFFFAOYSA-M didodecyl(dimethyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCCCC[N+](C)(C)CCCCCCCCCCCC WLCFKPHMRNPAFZ-UHFFFAOYSA-M 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 150000004683 dihydrates Chemical class 0.000 description 1
- NAPSCFZYZVSQHF-UHFFFAOYSA-N dimantine Chemical compound CCCCCCCCCCCCCCCCCCN(C)C NAPSCFZYZVSQHF-UHFFFAOYSA-N 0.000 description 1
- 229950010007 dimantine Drugs 0.000 description 1
- UAKOZKUVZRMOFN-JDVCJPALSA-M dimethyl-bis[(z)-octadec-9-enyl]azanium;chloride Chemical compound [Cl-].CCCCCCCC\C=C/CCCCCCCC[N+](C)(C)CCCCCCCC\C=C/CCCCCCCC UAKOZKUVZRMOFN-JDVCJPALSA-M 0.000 description 1
- RSHHCURRBLAGFA-UHFFFAOYSA-M dimethyl-di(tetradecyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCCCCCC[N+](C)(C)CCCCCCCCCCCCCC RSHHCURRBLAGFA-UHFFFAOYSA-M 0.000 description 1
- REZZEXDLIUJMMS-UHFFFAOYSA-M dimethyldioctadecylammonium chloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCC[N+](C)(C)CCCCCCCCCCCCCCCCCC REZZEXDLIUJMMS-UHFFFAOYSA-M 0.000 description 1
- LAWOZCWGWDVVSG-UHFFFAOYSA-N dioctylamine Chemical compound CCCCCCCCNCCCCCCCC LAWOZCWGWDVVSG-UHFFFAOYSA-N 0.000 description 1
- 238000002845 discoloration Methods 0.000 description 1
- 239000004664 distearyldimethylammonium chloride (DHTDMAC) Substances 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- OVBCZFVMOZVLPM-UHFFFAOYSA-N docosan-1-amine;hydrochloride Chemical compound [Cl-].CCCCCCCCCCCCCCCCCCCCCC[NH3+] OVBCZFVMOZVLPM-UHFFFAOYSA-N 0.000 description 1
- DDXLVDQZPFLQMZ-UHFFFAOYSA-M dodecyl(trimethyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCCCC[N+](C)(C)C DDXLVDQZPFLQMZ-UHFFFAOYSA-M 0.000 description 1
- JRBPAEWTRLWTQC-UHFFFAOYSA-N dodecylamine Chemical compound CCCCCCCCCCCCN JRBPAEWTRLWTQC-UHFFFAOYSA-N 0.000 description 1
- XJWSAJYUBXQQDR-UHFFFAOYSA-M dodecyltrimethylammonium bromide Chemical compound [Br-].CCCCCCCCCCCC[N+](C)(C)C XJWSAJYUBXQQDR-UHFFFAOYSA-M 0.000 description 1
- 239000003480 eluent Substances 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 238000004993 emission spectroscopy Methods 0.000 description 1
- 229960003750 ethyl chloride Drugs 0.000 description 1
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 239000001530 fumaric acid Substances 0.000 description 1
- 235000011087 fumaric acid Nutrition 0.000 description 1
- 238000007429 general method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 150000004687 hexahydrates Chemical class 0.000 description 1
- XKDUZXVNQOZCFC-UHFFFAOYSA-N hexan-1-amine;hydron;chloride Chemical compound Cl.CCCCCCN XKDUZXVNQOZCFC-UHFFFAOYSA-N 0.000 description 1
- 238000007602 hot air drying Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- PHFDTSRDEZEOHG-UHFFFAOYSA-N hydron;octan-1-amine;chloride Chemical compound Cl.CCCCCCCCN PHFDTSRDEZEOHG-UHFFFAOYSA-N 0.000 description 1
- BUHXFUSLEBPCEB-UHFFFAOYSA-N icosan-1-amine Chemical compound CCCCCCCCCCCCCCCCCCCCN BUHXFUSLEBPCEB-UHFFFAOYSA-N 0.000 description 1
- 150000002466 imines Chemical class 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910001411 inorganic cation Inorganic materials 0.000 description 1
- INQOMBQAUSQDDS-UHFFFAOYSA-N iodomethane Chemical compound IC INQOMBQAUSQDDS-UHFFFAOYSA-N 0.000 description 1
- 238000004255 ion exchange chromatography Methods 0.000 description 1
- 239000003014 ion exchange membrane Substances 0.000 description 1
- 239000003456 ion exchange resin Substances 0.000 description 1
- 229920003303 ion-exchange polymer Polymers 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- 229940102396 methyl bromide Drugs 0.000 description 1
- LNOPIUAQISRISI-UHFFFAOYSA-N n'-hydroxy-2-propan-2-ylsulfonylethanimidamide Chemical compound CC(C)S(=O)(=O)CC(N)=NO LNOPIUAQISRISI-UHFFFAOYSA-N 0.000 description 1
- YWFWDNVOPHGWMX-UHFFFAOYSA-N n,n-dimethyldodecan-1-amine Chemical compound CCCCCCCCCCCCN(C)C YWFWDNVOPHGWMX-UHFFFAOYSA-N 0.000 description 1
- NHLUVTZJQOJKCC-UHFFFAOYSA-N n,n-dimethylhexadecan-1-amine Chemical compound CCCCCCCCCCCCCCCCN(C)C NHLUVTZJQOJKCC-UHFFFAOYSA-N 0.000 description 1
- SFBHPFQSSDCYSL-UHFFFAOYSA-N n,n-dimethyltetradecan-1-amine Chemical compound CCCCCCCCCCCCCCN(C)C SFBHPFQSSDCYSL-UHFFFAOYSA-N 0.000 description 1
- GMTCPFCMAHMEMT-UHFFFAOYSA-N n-decyldecan-1-amine Chemical compound CCCCCCCCCCNCCCCCCCCCC GMTCPFCMAHMEMT-UHFFFAOYSA-N 0.000 description 1
- MJCJUDJQDGGKOX-UHFFFAOYSA-N n-dodecyldodecan-1-amine Chemical compound CCCCCCCCCCCCNCCCCCCCCCCCC MJCJUDJQDGGKOX-UHFFFAOYSA-N 0.000 description 1
- UBBUHNHUKKIQAW-UHFFFAOYSA-N n-octyldecan-1-amine Chemical compound CCCCCCCCCCNCCCCCCCC UBBUHNHUKKIQAW-UHFFFAOYSA-N 0.000 description 1
- AFQGAXFMOMNYDL-UHFFFAOYSA-N n-octyloctan-1-amine;hydrochloride Chemical compound Cl.CCCCCCCCNCCCCCCCC AFQGAXFMOMNYDL-UHFFFAOYSA-N 0.000 description 1
- HSUGDXPUFCVGES-UHFFFAOYSA-N n-tetradecyltetradecan-1-amine Chemical compound CCCCCCCCCCCCCCNCCCCCCCCCCCCCC HSUGDXPUFCVGES-UHFFFAOYSA-N 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 235000021317 phosphate Nutrition 0.000 description 1
- 229940085991 phosphate ion Drugs 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 1
- 235000015320 potassium carbonate Nutrition 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 238000005956 quaternization reaction Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000000176 sodium gluconate Substances 0.000 description 1
- 235000012207 sodium gluconate Nutrition 0.000 description 1
- 229940005574 sodium gluconate Drugs 0.000 description 1
- 235000019795 sodium metasilicate Nutrition 0.000 description 1
- 239000001488 sodium phosphate Substances 0.000 description 1
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000003892 spreading Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000001384 succinic acid Substances 0.000 description 1
- 239000012756 surface treatment agent Substances 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- VDWRUZRMNKZIAJ-UHFFFAOYSA-N tetradecylazanium;acetate Chemical compound CC(O)=O.CCCCCCCCCCCCCCN VDWRUZRMNKZIAJ-UHFFFAOYSA-N 0.000 description 1
- POWFTOSLLWLEBN-UHFFFAOYSA-N tetrasodium;silicate Chemical compound [Na+].[Na+].[Na+].[Na+].[O-][Si]([O-])([O-])[O-] POWFTOSLLWLEBN-UHFFFAOYSA-N 0.000 description 1
- CEYYIKYYFSTQRU-UHFFFAOYSA-M trimethyl(tetradecyl)azanium;chloride Chemical compound [Cl-].CCCCCCCCCCCCCC[N+](C)(C)C CEYYIKYYFSTQRU-UHFFFAOYSA-M 0.000 description 1
- HVLUSYMLLVVXGI-USGGBSEESA-M trimethyl-[(z)-octadec-9-enyl]azanium;chloride Chemical compound [Cl-].CCCCCCCC\C=C/CCCCCCCC[N+](C)(C)C HVLUSYMLLVVXGI-USGGBSEESA-M 0.000 description 1
- BSVBQGMMJUBVOD-UHFFFAOYSA-N trisodium borate Chemical compound [Na+].[Na+].[Na+].[O-]B([O-])[O-] BSVBQGMMJUBVOD-UHFFFAOYSA-N 0.000 description 1
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 description 1
- 229910000406 trisodium phosphate Inorganic materials 0.000 description 1
- 235000019801 trisodium phosphate Nutrition 0.000 description 1
- 238000000108 ultra-filtration Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/24—Cleaning or pickling metallic material with solutions or molten salts with neutral solutions
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
- C11D1/38—Cationic compounds
- C11D1/62—Quaternary ammonium compounds
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/0221—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips characterised by the working steps
- C21D8/0236—Cold rolling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/0421—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the working steps
- C21D8/0436—Cold rolling
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
- C21D8/04—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing
- C21D8/0478—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing involving a particular surface treatment
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
- C23G1/14—Cleaning or pickling metallic material with solutions or molten salts with alkaline solutions
- C23G1/19—Iron or steel
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F1/00—Electrolytic cleaning, degreasing, pickling or descaling
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
- C11D2111/10—Objects to be cleaned
- C11D2111/14—Hard surfaces
- C11D2111/16—Metals
Definitions
- the present invention relates to a method of manufacturing a steel sheet.
- Various types of treatment steps are performed to manufacture a cold rolled steel sheet or a cold rolled coil.
- Examples thereof include an acid cleaning step of removing an oxide layer and an alkali cleaning step of removing rolling oil or rust-preventive oil.
- an acid cleaning liquid or an alkali cleaning liquid is rinsed with warm water and dried with hot air.
- rust is generated if the drying is insufficient
- a dewatering process of removing water attached to the steel sheet is important, and various dewatering methods have been carried out. In these methods, for example, water is mechanically wrung out by using a rubber roll called a wringer roll, or an air wiper is installed before hot air drying to blow away water attached to the steel sheet as much as possible.
- the temperature of the rinsing water for rinsing the cleaning liquid is generally 70°C or higher in order to enhance the drying properties.
- a high energy cost is required to increase the temperature to a prescribed temperature because a large amount of water is used in this rinsing treatment.
- JP-A-06-238102 discloses a dewatering agent containing, as an active ingredient, a salt consisting of an amine and/or an imine and an aliphatic carboxylic acid as an aqueous solution type dewatering agent capable of preventing the generation of rust even when being applied to metal as a dewatering method of making the surface of the steel sheet water-repellent in order to suppress the use of rinsing water.
- JP-A-09-255940 discloses a dewatering agent containing a specific nitrogen-containing compound as a dewatering agent having excellent safety with no environmental contamination, having excellent dewatering properties, capable of suppressing the generation of water stains, having discoloration preventing and rust preventing effects on a metal part, and whose component evaporates by drying, which makes the dewatering agent be difficult to remain on the surface of the part.
- JP-A-09-57005 discloses a dewatering agent containing a compound having a specific amino group or a specific quaternary ammonium group as a surface treatment agent having excellent safety with no environmental contamination, that hydrophobizes the surface of various types of parts to be treated when the agent is used in the cleaning step to reduce the amount of water attached to the parts in final pure water substitution, that prevents the generation of water stains to reduce the drying time, having a rust preventing effect on the metal part, and capable of preventing wet spreading of a conductive adhesive used on the parts after the treatment into unnecessary places.
- JP-A-2006-265726 discloses a rinsing agent composition for a steel sheet containing a specific cationic compound and a specific nonionic compound as a rinsing agent composition for a steel sheet that makes, even in a small amount, the surface of a steel sheet water-repellent to give good dewatering properties even at a low temperature of 40°C or lower, that is capable of reducing energy cost, that is capable of reducing the drying load, that has a good rust-preventive effect even when water remains, and that has excellent antifoaming properties.
- the method of manufacturing a steel sheet of the present invention is a method of manufacturing a steel sheet, including a cleaning step (1) of cleaning a steel sheet after cold rolling, a rinsing step (2) of rinsing the steel sheet after being subjected to the cleaning step (1), and a drying step (3) of drying the steel sheet after being subjected to the rinsing step (2) ; wherein the rinsing step (2) includes one or more rinsing treatments, a rinsing agent ⁇ used in a final rinsing treatment contains at least one type of component (a) selected from compounds represented by the following formula (1): (wherein R 1 represents a hydrocarbon group having 6 or more and 22 or less carbon atoms, R 2 represents a hydrogen atom or a hydrocarbon group having 1 or more and 22 or less carbon atoms, R 3 and R 4 are the same or different and each represent a hydrogen atom or a hydrocarbon group having 1 or more and 3 or less carbon atoms, and X - represents an inorgan
- JP-A-06-238102 , JP-A-09-255940 , JP-A-09-57005 , and JP-A-2006-265726 describe a dewatering agent and a rinsing agent for a steel sheet containing a specific amine compound and further a specific nonionic surfactant. However, those agents should be used at a somewhat high concentration in order to make the steel sheet water-repellent.
- An object of the present invention is to provide a method of manufacturing a steel sheet, with which a steel sheet is made water-repellent by using an amine compound and a nonionic surfactant at a low concentration compared to a conventional rinsing agent to realize a small load in wastewater treatment and a reduced energy cost for drying the steel sheet or the like after cleaning.
- the present inventors found that a sufficient water-repelling effect may be exhibited even if the concentration of the rinsing agent is low depending on the types of water such as industrial water used in a manufacturing plant for a steel sheet. They focused on the cation concentration of an inorganic salt in the rinsing agent. As a result, they found that the cation concentration is adjusted to a specific range to reduce the use amounts of the amine compound and the nonionic surfactant, and to reduce the energy cost for drying the steel sheet or the like after cleaning, and completed the present invention.
- the method of manufacturing a steel sheet of the present invention is a method of manufacturing a steel sheet, including a cleaning step (1) of cleaning a steel sheet after cold rolling, a rinsing step (2) of rinsing the steel sheet after being subjected to the cleaning step (1), and a drying step (3) of drying the steel sheet after being subjected to the rinsing step (2) ; wherein the rinsing step (2) includes one or more rinsing treatments, a rinsing agent ⁇ used in a final rinsing treatment contains at least one type of component (a) selected from compounds represented by the following formula (1): (wherein R 1 represents a hydrocarbon group having 6 or more and 22 or less carbon atoms, R 2 represents a hydrogen atom or a hydrocarbon group having 1 or more and 22 or less carbon atoms, R 3 and R 4 are the same or different and each represent a hydrogen atom or a hydrocarbon group having 1 or more and 3 or less carbon atoms, and X - represents an inorgan
- the present invention can provide a method of manufacturing a steel sheet having a smaller load in wastewater treatment than that in a case where a conventional rinsing agent is used and is capable of reducing the energy cost for drying a steel sheet or the like after cleaning.
- the load in wastewater treatment and the energy cost for drying the steel sheet or the like after cleaning can be reduced.
- the reasons why these effects are exhibited are not clear; however, they can be considered as follows.
- the electric charge of the component (a) changes when the cation concentration of an inorganic salt in the rinsing agent is set to a specific range, making the component (a) be easily adsorbed to the surface of the steel sheet. It is considered that the adsorption of the component (a) onto the surface of the steel sheet gives water repellency to suppress the attachment of water onto the surface of the steel sheet. It is also considered that an excessive amount of sulfate ions causes the component (a) and the sulfate ion to form a complex to hinder the adsorption of the component (a) onto the surface of the steel sheet.
- stains from rolling oil or the like attached to a steel sheet are cleaned with a detergent according to conditions of a conventional method.
- the steel sheet may be made of any type of metal; however, iron is preferably used from a viewpoint of promoting drying to prevent rust.
- the detergent include alkaline detergents described in JP-A-10-280179 and JP-A-10-324900 .
- an aqueous solution containing an alkaline agent is used as the alkaline detergent.
- any alkaline agent can be used as long as the alkaline agent is water soluble.
- the alkaline agent include alkali metal hydroxides such as sodium hydroxide and potassium hydroxide; silicates such as sodium orthosilicate, sodium metasilicate, and sodium sesquisilicate; phosphates such as trisodium phosphate; carbonates such as disodium carbonate, sodium bicarbonate, and dipotassium carbonate; and borates such as sodium borate. Two types or more of water-soluble alkaline agents may be combined.
- the content of the alkaline agent in the alkaline detergent is preferably 0.1% by mass or more, and more preferably 1% by mass or more; and is preferably 10% by mass or less, and more preferably 3% by mass or less.
- examples of chemicals that can be added in the alkaline detergent include nonionic surfactants such as polyoxyalkylene alkyl ether; chelating agents that react with stains of iron soap or the like to chelate iron ions or the like into fatty acid soap, and make stains be easily dissolved to improve cleaning properties; and, from a viewpoint of securing the stability in storage and the stability of the effects after storage, aliphatic carboxylic acids and salts thereof.
- Any additives can be added in the alkaline detergent.
- generally used additives such as an organic builder for improving the cleaning properties can be compounded in the alkaline detergent in consideration of the cost increase or the like.
- the ratio of the components other than the alkaline agent to the alkaline detergent is appropriately determined, and the ratio is preferably 1 part by mass or less, and more preferably 0.5 part by mass or less to 1 part by mass of the alkaline agent.
- the ratio of non-volatile contents including the alkaline agent and components other than the alkaline agent to the alkaline detergent is preferably 1% by mass or more and 10% by mass or less.
- Examples of the cleaning step (1) include immersion cleaning, spray cleaning, brush cleaning, and electrolytic cleaning.
- the electrolytic cleaning is a cleaning method of making a steel sheet positively charged (or negatively charged) in the cleaning liquid to feed a DC current, and is a step of removing, by a physical force, oil stains and solid stains such as iron powder attached to the steel sheet using gas bubbles of oxygen (or hydrogen) generated from the steel sheet due to the current.
- the cleaning step (1) may be acid cleaning of removing the oxide film formed on the surface of the steel sheet with an acid detergent.
- the steel sheet after being subjected to the cleaning step (1) is rinsed with water or a rinsing agent to remove the detergent and the remaining rolling oil.
- the rinsing agent used in a final treatment of the rinsing step (2) (referred to as a rinsing agent ⁇ below) contains the component (a) and has a cation concentration and a sulfate ion concentration each in a specific range.
- the component (a) is at least one type of organic cationic compound selected from the compounds represented by the formula (1).
- the component (a) is preferably an alkylamine acid salt and an alkylammonium salt, and more preferably an alkylamine acid salt.
- R 1 represents a hydrocarbon group having 6 or more carbon atoms.
- the number of carbon atoms is preferably 8 or more, more preferably 12 or more, and further preferably 16 or more; and is 22 or less, and preferably 18 or less from a viewpoint of sufficiently hydrophobizing the surface of the steel sheet.
- R 1 is preferably a straight chain or branched chain alkyl group or alkenyl group, and more preferably a straight chain alkyl group or alkenyl group.
- R 1 examples include a hexyl group, an octyl group, a 2-ethylhexyl group, a decyl group, a lauryl (dodecyl) group, a tridecyl group, a myristyl (tetradecyl) group, a palmityl (hexadecyl) group, a stearyl (octadecyl) group, a behenyl group, and an oleyl group.
- R 1 is preferably a hexyl group, an octyl group, a lauryl (dodecyl) group, a tridecyl group, a myristyl (tetradecyl) group, a palmityl (hexadecyl) group, a stearyl (octadecyl) group, a behenyl group, or an oleyl group; more preferably a tridecyl group, a lauryl (dodecyl) group, a myristyl (tetradecyl) group, a palmityl (hexadecyl) group, a stearyl (octadecyl) group, a behenyl group, or an oleyl group; further preferably a lauryl (dodecyl) group, a myristyl (tetradecyl) group, a palmityl (hexadec
- R 2 represents a hydrogen atom or a hydrocarbon group having 1 or more carbon atoms.
- the number of carbon atoms is preferably 6 or more, more preferably 8 or more, further preferably 12 or more, and even more preferably 16 or more; and is 22 or less, and preferably 18 or less from a viewpoint of sufficiently hydrophobizing the surface of the steel sheet.
- R 2 is preferably a straight chain or branched chain alkyl group or alkenyl group, and more preferably a straight chain alkyl group or alkenyl group.
- R 2 examples include a hydrogen atom, a methyl group, an ethyl group, an isopropyl group, a hexyl group, an octyl group, a 2-ethylhexyl group, a decyl group, a lauryl (dodecyl) group, a tridecyl group, a myristyl (tetradecyl) group, a palmityl (hexadecyl) group, a stearyl (octadecyl) group, a behenyl group, and an oleyl group. From a viewpoint of sufficiently hydrophobizing the surface of the steel sheet, R 2 is preferably a hydrogen atom.
- R 3 and R 4 are the same or different; and each represent a hydrogen atom or a hydrocarbon group having 1 or more and 3 or less carbon atoms such as a methyl group, an ethyl group, and an isopropyl group. From a viewpoint of sufficiently hydrophobizing the surface of the steel sheet, R 3 and R 4 are preferably hydrogen atoms.
- X - include halide ions such as a chloride ion and a bromide ion; organic anions resulting from removal of a proton from an organic acid such as acetic acid, lactic acid, or citric acid; an alkyl carbonate ion (CH 3 CO 3 - ) ; and an alkyl phosphate ion.
- X - is preferably a halide ion such as a chloride ion or a bromide ion, or an organic anion such as CH 3 CO 3 - , and is more preferably an organic anion.
- a sulfate ion can also be used. However, in this case, the concentration of the sulfate ion in the rinsing agent ⁇ should be 0.75 mmol/kg or less.
- Examples of the component (a) include acid neutralized products of dioctylamine, didecylamine, dilaurylamine, dimyristylamine, decyloctylamine, lauryloctylamine, laurylamine, lauryl dimethyl amine, myristylamine, myristyl dimethyl amine, palmitylamine, palmityl dimethyl amine, stearylamine, stearyl dimethyl amine, oleylamine, and oleyl dimethyl amine; and quaternary ammonium salts.
- an acid neutralized product is used as the component (a)
- at least one of R 2 , R 3 , and R 4 represents a hydrogen atom.
- Examples of the preferred acid for obtaining the acid neutralized product include hydrochloric acid, nitric acid, phosphoric acid, acetic acid, formic acid, maleic acid, fumaric acid, citric acid, tartaric acid, adipic acid, sulfamic acid, toluenesulfonic acid, lactic acid, pyrrolidone-2-carboxylic acid, and succinic acid.
- the acid is preferably hydrochloric acid and acetic acid, and more preferably acetic acid.
- Examples of preferred quaternization agent for obtaining a quaternary ammonium salt include general alkylation agents such as alkyl halides including methyl chloride, ethyl chloride, methyl bromide, and methyl iodide.
- Examples of the component (a) include an acid neutralized product of a monoalkylamine having 6 or more and 22 or less carbon atoms, an acid neutralized product of a monoalkyl methyl amine having 6 or more and 22 or less carbon atoms, an acid neutralized product of a monoalkyl dimethyl amine having 6 or more and 22 or less carbon atoms, an acid neutralized product of a dialkyl methyl amine having 1 or more and 22 or less carbon atoms, an acid neutralized product of a dialkyl dimethyl amine having 1 or more and 22 or less carbon atoms, a alkyltrimethyl ammonium having 6 or more and 22 or less carbon atoms, and dialkyl ammonium having 1 or more and 22 or less carbon atoms.
- dioctylamine hydrochloride dioctyl dimethyl ammonium chloride, dilauryl dimethyl ammonium chloride, dimyristyl dimethyl ammonium chloride, distearyl dimethyl ammonium chloride, dioleyl dimethyl ammonium chloride, lauryl trimethyl ammonium bromide, stearyl trimethyl ammonium chloride, oleyl trimethyl ammonium chloride, lauryl trimethyl ammonium chloride, laurylamine hydrochloride, stearylamine hydrochloride, oleylamine hydrochloride, laurylamine acetate, myristylamine acetate, myristyl trimethyl ammonium chloride, palmitylamine acetate, palmityl trimethyl ammonium chloride, stearylamine hydrochloride, stearyl trimethyl ammonium chloride, oleylamine acetate, hexylamine acetate, behenylamine acetate
- the component (a) is preferably hexylamine acetate, octylamine acetate, laurylamine acetate, hexadecylamine acetate, oleylamine acetate, stearylamine acetate, behenylamine acetate, hexylamine hydrochloride, octylamine hydrochloride, laurylamine hydrochloride, hexadecylamine hydrochloride, oleylamine hydrochloride, stearylamine hydrochloride, or behenylamine hydrochloride; and is more preferably hexadecylamine acetate, oleylamine acetate, hexadecylamine hydrochloride, or oleylamine hydrochloride.
- the concentration of the component (a) in the rinsing agent ⁇ is preferably 5 mg/kg or more, more preferably 10 mg/kg or more, and further preferably 20 mg/kg or more. From a viewpoint of preventing the excessive component (a) from being attached to the steel sheet and hindering the subsequent annealing process and plating process, the concentration is 150 mg/kg or less, preferably 148 mg/kg or less, more preferably 145 mg/kg or less, further preferably 120 mg/kg or less, and even more preferably 110 mg/kg or less.
- the cation concentration P c (mmol/kg) of the inorganic salt in the rinsing agent ⁇ is 2.0 mmol/kg or more and 18.0 mmol/kg or less.
- the cation concentration P c of water is adjusted when preparing the rinsing agent ⁇ to adjust the cation concentration P c of the inorganic salt.
- the method of manufacturing a steel sheet of the present embodiment may have a cation concentration P c measurement step of measuring the cation concentration P c of the inorganic salt in water for preparing the rinsing agent ⁇ and a rinsing agent ⁇ preparation step of preparing the rinsing agent ⁇ used in the rinsing step (2) so that the cation concentration P c of the inorganic salt is within the above-described range based on a value measured in the cation concentration P c measurement step.
- the cation concentration P c can be measured by a general method.
- the cation concentration P c can be measured by a method described in the examples.
- An example of the method of preparing the rinsing agent ⁇ used in the rinsing step (2) so that the cation concentration P c of the inorganic salt is within the above-described range based on a value measured in the cation concentration P c measurement step is a method of adjusting the cation concentration P c of water for preparing the rinsing agent ⁇ and preparing the rinsing agent ⁇ using the adjusted water.
- An example of the method of adjusting the cation concentration P c of water when preparing the rinsing agent ⁇ is, when the cation concentration P c of industrial water used in a manufacturing plant for a steel sheet is low, a method of adding the inorganic salt into the industrial water to increase the cation concentration P c , or, when the cation concentration P c of the industrial water is high, a method of mixing water having a low cation concentration P c , such as deionized water, into the industrial water to lower the cation concentration P c .
- the rinsing agent may be prepared using the industrial water having a low cation concentration P c , and the inorganic salt may be added into the rinsing agent to adjust the cation concentration P c .
- Examples of the method of obtaining the deionized water include a method of treating water with an ion exchange resin or an ion exchange membrane, a method of treating water by ultrafiltration, and a method of treating water by distillation.
- Examples of the inorganic salt include one or more types of compounds selected from an alkali metal salt, an alkaline earth metal salt, and an aluminum salt. Specific examples include chlorides such as sodium chloride, potassium chloride, calcium chloride, magnesium chloride, and aluminum chloride; nitrates such as sodium nitrate; and carbonates such as sodium carbonate.
- the cation that achieves the cation concentration P c is an inorganic cation, and examples include alkali metal ions such as a sodium ion and a potassium ion, alkaline earth metal ions such as a calcium ion and a magnesium ion, and an aluminum ion.
- the rinsing agent ⁇ exhibits water-repellency.
- the cation concentration P c of the inorganic salt is 2.0 mmol/kg or more, preferably 4.0 mmol/kg or more, more preferably 5.0 mmol/kg or more, and further preferably 6.0 mmol/kg or more; and is 18.0 mmol/kg or less, preferably 17.0 mmol/kg or less, and more preferably 10.0 mmol/kg or less.
- the sulfate ion concentration in the rinsing agent ⁇ exceeds 0.75 mmol/kg, the water-repellency deteriorates. It is considered that this is because the component (a) and the sulfate ion form a complex if there is too large an amount of sulfate ions, which hinders the attachment of the component (a) onto the surface of the steel sheet.
- the sulfate ion concentration in the rinsing agent ⁇ is 0.75 mmol/kg or less, preferably 0.70 mmol/kg or less, more preferably 0.40 mmol/kg or less, further preferably 0.20 mmol/kg or less, and even more preferably, the rinsing agent ⁇ contains no sulfate ion.
- the sulfate ion concentration is high, water having a low sulfate ion concentration such as ion exchange water can be mixed to lower the sulfate ion concentration.
- the method of manufacturing a steel sheet of the present embodiment preferably includes a step of measuring the sulfate ion concentration in water for preparing the rinsing agent ⁇ and a step of preparing the rinsing agent ⁇ used in the rinsing step (2) so that the sulfate ion concentration is within the above-described range based on a value measured in the sulfate ion concentration measurement step.
- the rinsing agent ⁇ is an aqueous composition containing the component (a), and water is used as an aqueous medium.
- the preferable water include deionized water, ion exchange water, tap water, and industrial water. From a viewpoint of adjusting the cation concentration P c and the sulfate ion concentration, water having a cation concentration P c and a sulfate ion concentration within the above-described ranges is preferable.
- the rinsing agent ⁇ may contain a defoaming agent, a chelating agent, a preservative, and the like as long as the effect of the present invention is exhibited.
- the cation concentration P c of the inorganic salt and the sulfate ion concentration in the rinsing agent ⁇ are adjusted to be within the above-described range even when the rinsing agent ⁇ contains the defoaming agent, the chelating agent, the preservative, and the like.
- the pH of the rinsing agent ⁇ is preferably 3 or more, more preferably 5 or more, and more preferably 6 or more; and is preferably 10 or less, and more preferably 9 or less.
- the rinsing agent ⁇ is preferably used at 60°C or lower, more preferably 50°C or lower, further preferably 40°C or lower, and even more preferably 30°C or lower.
- the lower limit is not particularly limited; however, it is normally 5°C or higher.
- the rinsing step (2) can include one or more rinsing treatments.
- the rinsing agent ⁇ is made to contact the steel sheet after being subjected to the cleaning step (1).
- a rinsing agent other than the rinsing agent ⁇ or water can be used to perform the rinsing treatments in the rinsing step (2); however, it is necessary to use the rinsing agent ⁇ in the final rinsing treatment of the rinsing step (2).
- rinsing agent treatment using the rinsing agent ⁇ performed in the final rinsing treatment of the rinsing step (2) include a brush rinsing treatment of spraying the rinsing agent ⁇ onto the steel sheet while brushing the steel sheet to rinse the steel sheet, a spray rinsing treatment of spraying the rinsing agent ⁇ onto the steel sheet without brushing the steel sheet to rinse the steel sheet, and an immersion rinsing treatment of immersing the steel sheet in the rinsing agent ⁇ to rinse the steel sheet.
- the immersion rinsing treatment and/or the spray rinsing treatment is preferable; and from a viewpoint of making the rinsing agent ⁇ directly and efficiently acting on the steel sheet, the spray rinsing treatment is more preferable.
- the rinsing agent ⁇ is sprayed onto the steel sheet, the rinsing agent ⁇ distilled from the surface of the steel sheet after the spray treatment is introduced into an immersion tank, and the rinsing agent ⁇ is used in the immersion rinsing treatment.
- the steel sheet and a brush roll are sprayed with the rinsing agent ⁇ while the steel sheet is conveyed between the brush rolls or between the brush roll and a conveying roll, so that the steel sheet is brought into contact with the rinsing agent ⁇ .
- the rotational speed of the brush roll is preferably 100 rotations/min or more, and more preferably 500 rotations/min or more; and is preferably 1,200 rotations/min or less, and more preferably 1,000 rotations/min or less.
- the spray rinsing treatment the steel sheet is directly sprayed with the rinsing agent ⁇ so that the steel sheet is brought into contact with the rinsing agent ⁇ .
- the spray pressure is preferably 0.05 MPa or more, and more preferably 0.1 MPa or more; and is preferably 1.5 MPa or less, and more preferably 1 MPa or less.
- the spray amount is preferably 1 m 3 /hour or more, more preferably 5 m 3 /hour or more, and further preferably 7 m 3 /hour or more; and is preferably 100 m 3 /hour or less, more preferably 70 m 3 /hour or less, and further preferably 60 m 3 /hour or less.
- the spray time contact time in the spray rinsing treatment
- the immersion time of the steel sheet in the rinsing agent ⁇ is preferably 1 second or more and 5 seconds or less.
- the spray pressure is preferably 0.05 MPa or more and 1.5 MPa or less, and the spray time is preferably 0.1 second or more and 5 seconds or less.
- a method of performing the brush rinsing treatment with water or a rinsing agent other than the rinsing agent ⁇ and the immersion rinsing treatment with the rinsing agent ⁇ a method of performing the immersion rinsing treatment with water or a rinsing agent other than the rinsing agent ⁇ and the spray rinsing treatment with the rinsing agent ⁇ are preferable.
- the steel sheet is more preferably rinsed with water and then with the rinsing agent ⁇ .
- a method of performing the brush rinsing treatment with water and the immersion rinsing treatment with the rinsing agent ⁇ and a method of performing the immersion rinsing treatment with water and the spray rinsing treatment with the rinsing agent ⁇ are more preferable.
- the temperature of water that is used is preferably 5°C or higher, and more preferably 10°C or higher; and is preferably 60°C or lower, more preferably 50°C or lower, further preferably 40°C or lower, and even more preferably 30°C or lower.
- the steel sheet may be immersed in water or a rinsing agent, or the steel sheet may be rinsed with shower or the like.
- the immersion time is preferably 1 second or more and 5 seconds or less.
- the spray pressure is preferably 0.05 MPa or more and 1.5 MPa or less, and the spray time is preferably 0.1 second or more and 5 seconds or less.
- the steel sheet and a brush roll are sprayed with water or a rinsing agent while the steel sheet is conveyed between the brush rolls or between the brush roll and a conveying roll, so that the steel sheet is brought into contact with water or a rinsing agent.
- the rotational speed of the brush roll is preferably 100 rotations/min or more, and more preferably 500 rotations/min or more; and is preferably 1, 200 rotations/min or less, and more preferably 1,000 rotations/min or less.
- the steel sheet is directly sprayed with water or a rinsing agent, so that the steel sheet is brought into contact with water or a rinsing agent.
- the spray pressure is preferably 0.05 MPa or more, and more preferably 0.1 MPa or more; and is preferably 1.5 MPa or less, and more preferably 1 MPa or less.
- the spray amount is preferably 1 m 3 /hour or more, more preferably 5 m 3 /hour or more, and further preferably 7 m 3 /hour or more; and is preferably 100 m 3 /hour or less, more preferably 70 m 3 /hour or less, and further preferably 60 m 3 /hour or less.
- the spray time contact time in the spray rinsing treatment
- the immersion time of the steel sheet in water or a rinsing agent is preferably 0.5 second or more, and more preferably 1 second or more; and is preferably 10 seconds or less, and more preferably 5 seconds or less.
- the cleaning step (1) and the rinsing step (2) are normally provided as a continuous line for conveying a steel sheet.
- the conveying speed of the steel sheet is normally 30 m/min or more, and preferably 50 m/min or more; and is 1,000 m/min or less, and preferably 800 m/min or less.
- the treatment time for each of the cleaning step (1) and the rinsing step (2) is set in consideration of the speed of the conveying line.
- a treatment of holding a surface of the steel sheet after being subjected to a rinsing agent treatment using the rinsing agent ⁇ to be substantially perpendicular to the ground is preferably performed between the rinsing agent treatment using the rinsing agent ⁇ and the drying step (3).
- water on the surface of the steel sheet, to which water-repellency is given by the rinsing agent ⁇ drops by gravity to reduce the amount of water remaining on the surface of the steel sheet.
- the time of holding a surface of the steel sheet to be substantially perpendicular to the ground is preferably 1 second or more, and more preferably 3 seconds or more; and from a viewpoint of conveying the steel sheet, the time is preferably 30 seconds or less, and more preferably 20 seconds or less.
- the surface of the steel sheet being substantially perpendicular to the ground means that the surface of the steel sheet is held at a certain degree of angle to the ground so that the water droplets on the steel sheet drop by gravity.
- the angle of the surface of the steel sheet to the ground is preferably 90 ⁇ 10°, and more preferably 90 ⁇ 5°.
- a treatment of spraying a gas such as air onto the surface of the steel sheet to blow away the moisture on the steel sheet is preferably performed between the rinsing agent treatment using the rinsing agent ⁇ and the drying step (3).
- the steel sheet after being subjected to the rinsing step (2) and attached with the rinsing agent ⁇ is dried.
- the steel sheet attached with the rinsing agent ⁇ is dried according to conditions of a conventional method.
- An example of the drying means in the drying step is a method of placing the steel sheet in an oven at 80°C or higher and 150°C or lower and preferably 120°C or lower.
- Another example thereof is a method of spraying a gas such as air whose temperature is adjusted to be in this range onto the surface of the steel sheet.
- the drying time is preferably 60 seconds or less, more preferably 40 seconds or less, and further preferably 20 seconds or less.
- an example of the drying means is a method of heating the steel sheet for 3 seconds to 10 seconds at a temperature of 80°C or higher and 150°C or lower and preferably 120°C or lower to dry the steel sheet.
- the steel sheet obtained after cleaning can be used in various uses such as a steel sheet for automobiles, a steel sheet for drinks such as a can, and a steel sheet for home electric appliances.
- the amount of oil stains and the like attached onto the surface of the steel sheet after cleaning differs depending on the use of the steel sheet; however, the amount is preferably 10% or less, more preferably 5% or less, and even more preferably 3% or less after cleaning relative to the mass of carbon attached to the steel sheet before cleaning being 100%.
- the present description also discloses the following manufacturing method, composition, and uses related to the above-described embodiment.
- Test water was prepared and used in the experiment as a model of water containing ions, such as industrial water used in a manufacturing plant of a steel sheet.
- ions such as industrial water used in a manufacturing plant of a steel sheet.
- One or more types of inorganic salts selected from sodium chloride, calcium chloride (dihydrate), magnesium chloride (hexahydrate), potassium chloride, sodium nitrate, aluminum chloride, sodium carbonate, and sodium sulfate were added in ion exchange water, and the mixture was stirred to completely dissolve the components to prepare test water types W-1 to W-19.
- the analytical values of the cation concentration and the sulfate ion concentration for each test water type are shown in Table 1.
- the cation concentration and the sulfate ion concentration were measured by the following methods.
- the concentration was measured using an atomic absorption method.
- Measurement conditions "Spectra AA” manufactured by Varian Inc., wavelength: Na 589.0 nm, K 766.5 nm, frame acetylene (1.7 L/min) - air (15 L/min), burner height 7.5 mm, integration time 3 seconds (X 3 times average)
- the concentration was measured using ICP emission spectrometry.
- Measurement conditions "Optima 5300DV” manufactured by PerkinElmer, Inc., wavelength: Ca 317.933 nm, Mg 285.213 nm, integration time automatic (1 second to 5 seconds X 3 times average), high frequency output 1.3 kW, plasma gas 15 L/min, auxiliary gas 0.2 L/min, sheath gas 0.7 mL/min
- the concentration was measured using ion chromatography.
- Measurement conditions "DX320” manufactured by Dionex Corporation, column “Ion Pac AS11-HC” and “Ion Pac AG11-HC” (guard column) manufactured by Dionex Corporation, eluent KOH, analysis by gradient elution, flow rate 1.5 mL/min, detector electric conductivity, detector temperature 35°C, sample injection amount 25 ⁇ L
- the test water type W-3 (1 kg) was heated to 80°C, and 5.3 mg of an acid (acetic acid) and 23.7 mg of an alkylamine (oleylamine) (29.0 mg as oleylamine acetate) were added in this order as the component (a) and dissolved in the heated test water type W-3 to prepare a rinsing agent A.
- Each of the rinsing agents B, C, and a was prepared in the same manner as for the rinsing agent A except that the amount of the component (a) added was changed to be the concentration shown in Table 2.
- the rinsing agents A to C and a whose temperatures were adjusted to 25°C, were used in the steps shown in Table 3.
- a cold-rolled steel sheet (stain: iron powder and rolling oil) having a thickness of 0.7 mm cut into a piece of 70 mm in length and 100 mm in width was immersed in the detergent A in an alkali cleaning tank (immersion time 2 seconds), and pulled out of the alkali cleaning tank.
- the steel sheet after being subjected to the alkali cleaning step was immersed in the detergent A in an electrolytic cleaning tank, subjected to electrolytic cleaning (electrolysis time: switching interval between the negative and positive electrodes was 0.4 second for each of positive electrolysis and reverse electrolysis, current density: 14 A/dm 2 ), and pulled out of the electrolytic cleaning tank.
- the steel sheet after being subjected to the electrolytic cleaning step was subjected to brush cleaning using a brush roll cleaning testing machine (manufactured by Showa Industries Inc. , nylon brush, brush rotation speed: 500 rotations/min, brush rolling draft: 1 mm, steel sheet conveying speed: 60 m/min) while being sprayed with the test water type W-1 at a spray pressure of 0.2 MPa and a spray amount of 10 mL/sec using a nozzle (spray nozzle "1/4MVE11578" manufactured by H. IKEUCHI & Co. , Ltd.).
- a brush roll cleaning testing machine manufactured by Showa Industries Inc. , nylon brush, brush rotation speed: 500 rotations/min, brush rolling draft: 1 mm, steel sheet conveying speed: 60 m/min
- the steel sheet after the brush cleaning step was immersed in the test water type W-1 (immersion time: 2 seconds), and pulled out of a water-rinsing immersion tank.
- the steel sheet was sprayed with the rinsing agent shown in Table 3 at a spray pressure of 0.2 MPa and a spray amount of 33 mL/sec for 3 seconds using a nozzle (spray nozzle "1/4MJ100NBW" manufactured by H. IKEUCHI & Co., Ltd.).
- the surface of the steel sheet treated with the rinsing agent was held perpendicular to the ground for 5 seconds.
- the steel sheet having been subjected to the rinsing step was placed in a dryer (Forced Air Flow Oven "WFO-401W” manufactured by TOKYO RIKAKIKAI CO., LTD.) at 80°C to be dried.
- the time required for the surface of the steel sheet to be dried was visually measured. The results are shown in Table 3.
- Table 3 a case in which the surface was not dried in 1 minute is recorded as 1 minute or more, and a case in which water was not observed at the stage of completion of the rinsing step is recorded as *.
- Example A The same treatment as in Example A was performed except that the rinsing agent shown in Table 3 was used instead of the test water type W-1 in the immersion rinsing step and the test water type W-1 was used in the spray rinsing step.
- Example A The same treatment as in Example A was performed except that the rinsing agent shown in Table 3 was used instead of the test water type W-1 in the brush cleaning step and the test water type W-1 was used in the spray rinsing step.
- Example A The same treatment as in Example A was performed except that the rinsing agent shown in Table 3 was used instead of the detergent A in the electrolytic cleaning step and the test water type W-1 was used in the spray rinsing step.
- Example A The same treatment as in Example A was performed except that the rinsing agent shown in Table 3 was used instead of the detergent A in the alkali cleaning step and the test water type W-1 was used in the spray rinsing step.
- the steel sheet having been subjected to the rinsing step was placed in a dryer at 80°C, and the time required until the dryness of the surface of the steel sheet had been visually observed was used as a drying time. The shorter the drying time is, the better the drying properties are.
- the evaluation results are shown in Table 3.
- An index showing the water wettability in terms of area (WB: water break) was used to evaluate the water wettability of the surface of the steel sheet after being subjected to the rinsing step.
- a picture of the steel sheet before the drying step was taken, and a transparent film to which graph paper (minimum scale 1 mm) was copied was applied to the area of the part wetted with water to calculate the WB.
- the rinsing agent was prepared in the same manner as in Example A expect that the acid salt was compounded so that the concentration and the composition described in Table 6 were achieved to evaluate the drying properties by using the water break after the rinsing step. The evaluation results are shown in Table 6.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2014/067147 WO2015198467A1 (fr) | 2014-06-27 | 2014-06-27 | Procédé de production d'une tôle d'acier |
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| JP3600363B2 (ja) * | 1996-03-25 | 2004-12-15 | 花王株式会社 | 表面処理剤及び表面処理方法 |
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| WO2015198467A1 (fr) | 2015-12-30 |
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| CN106460200A (zh) | 2017-02-22 |
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