WO2017212011A1 - VERFAHREN ZUR REINIGENDEN VORBEHANDLUNG VON DURCH SCHWEIßEN ZUSAMMENGEFÜGTEN EISENHALTIGEN BAUTEILEN - Google Patents
VERFAHREN ZUR REINIGENDEN VORBEHANDLUNG VON DURCH SCHWEIßEN ZUSAMMENGEFÜGTEN EISENHALTIGEN BAUTEILEN Download PDFInfo
- Publication number
- WO2017212011A1 WO2017212011A1 PCT/EP2017/064063 EP2017064063W WO2017212011A1 WO 2017212011 A1 WO2017212011 A1 WO 2017212011A1 EP 2017064063 W EP2017064063 W EP 2017064063W WO 2017212011 A1 WO2017212011 A1 WO 2017212011A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- component
- ethoxylates
- welding
- less
- stain
- Prior art date
Links
- 238000003466 welding Methods 0.000 title claims abstract description 52
- 238000000034 method Methods 0.000 title claims abstract description 50
- 238000004140 cleaning Methods 0.000 title claims abstract description 16
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 title abstract description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 36
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 36
- 150000002191 fatty alcohols Chemical class 0.000 claims abstract description 24
- 229910052742 iron Inorganic materials 0.000 claims abstract description 24
- -1 iron ions Chemical class 0.000 claims abstract description 19
- 239000000126 substance Substances 0.000 claims abstract description 18
- 238000011282 treatment Methods 0.000 claims abstract description 15
- 150000001414 amino alcohols Chemical class 0.000 claims abstract description 13
- 125000004432 carbon atom Chemical group C* 0.000 claims abstract description 12
- 238000006243 chemical reaction Methods 0.000 claims abstract description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 10
- 230000002378 acidificating effect Effects 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 18
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 12
- 239000005977 Ethylene Substances 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 10
- 239000010959 steel Substances 0.000 claims description 10
- 229910019142 PO4 Inorganic materials 0.000 claims description 9
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical group CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 8
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 6
- 238000005238 degreasing Methods 0.000 claims description 6
- GSEJCLTVZPLZKY-UHFFFAOYSA-N Triethanolamine Chemical compound OCCN(CCO)CCO GSEJCLTVZPLZKY-UHFFFAOYSA-N 0.000 claims description 5
- 235000021110 pickles Nutrition 0.000 claims description 5
- 235000021317 phosphate Nutrition 0.000 claims description 4
- 150000003013 phosphoric acid derivatives Chemical class 0.000 claims description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N ethylene glycol Natural products OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 3
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical group C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 2
- 238000000576 coating method Methods 0.000 abstract description 4
- 150000002222 fluorine compounds Chemical class 0.000 abstract description 4
- 238000005554 pickling Methods 0.000 description 25
- 229910052751 metal Inorganic materials 0.000 description 12
- 239000002184 metal Substances 0.000 description 11
- 239000002893 slag Substances 0.000 description 10
- 239000000470 constituent Substances 0.000 description 6
- 239000000945 filler Substances 0.000 description 6
- 239000002736 nonionic surfactant Substances 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 5
- 239000002253 acid Substances 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 239000010703 silicon Substances 0.000 description 5
- 239000000356 contaminant Substances 0.000 description 4
- 238000009472 formulation Methods 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- HZAXFHJVJLSVMW-UHFFFAOYSA-N 2-Aminoethan-1-ol Chemical compound NCCO HZAXFHJVJLSVMW-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 238000007739 conversion coating Methods 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000007654 immersion Methods 0.000 description 3
- BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 description 3
- 229910000359 iron(II) sulfate Inorganic materials 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 238000001878 scanning electron micrograph Methods 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 2
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 2
- 239000000872 buffer Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 2
- 238000002149 energy-dispersive X-ray emission spectroscopy Methods 0.000 description 2
- 230000005183 environmental health Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229910052725 zinc Inorganic materials 0.000 description 2
- 239000011701 zinc Substances 0.000 description 2
- KBPLFHHGFOOTCA-UHFFFAOYSA-N 1-Octanol Chemical compound CCCCCCCCO KBPLFHHGFOOTCA-UHFFFAOYSA-N 0.000 description 1
- HXKKHQJGJAFBHI-UHFFFAOYSA-N 1-aminopropan-2-ol Chemical compound CC(O)CN HXKKHQJGJAFBHI-UHFFFAOYSA-N 0.000 description 1
- GIAFURWZWWWBQT-UHFFFAOYSA-N 2-(2-aminoethoxy)ethanol Chemical compound NCCOCCO GIAFURWZWWWBQT-UHFFFAOYSA-N 0.000 description 1
- DGCPZSLRAYKPND-UHFFFAOYSA-N 2-(2-aminoethoxy)propan-1-ol Chemical compound OCC(C)OCCN DGCPZSLRAYKPND-UHFFFAOYSA-N 0.000 description 1
- BFSVOASYOCHEOV-UHFFFAOYSA-N 2-diethylaminoethanol Chemical compound CCN(CC)CCO BFSVOASYOCHEOV-UHFFFAOYSA-N 0.000 description 1
- MIMUSZHMZBJBPO-UHFFFAOYSA-N 6-methoxy-8-nitroquinoline Chemical compound N1=CC=CC2=CC(OC)=CC([N+]([O-])=O)=C21 MIMUSZHMZBJBPO-UHFFFAOYSA-N 0.000 description 1
- 229910001208 Crucible steel Inorganic materials 0.000 description 1
- UEEJHVSXFDXPFK-UHFFFAOYSA-N N-dimethylaminoethanol Chemical compound CN(C)CCO UEEJHVSXFDXPFK-UHFFFAOYSA-N 0.000 description 1
- SLINHMUFWFWBMU-UHFFFAOYSA-N Triisopropanolamine Chemical compound CC(O)CN(CC(C)O)CC(C)O SLINHMUFWFWBMU-UHFFFAOYSA-N 0.000 description 1
- 229960000583 acetic acid Drugs 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000012556 adjustment buffer Substances 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 230000000536 complexating effect Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 229960002887 deanol Drugs 0.000 description 1
- 239000003599 detergent Substances 0.000 description 1
- LVTYICIALWPMFW-UHFFFAOYSA-N diisopropanolamine Chemical compound CC(O)CNCC(C)O LVTYICIALWPMFW-UHFFFAOYSA-N 0.000 description 1
- 238000003618 dip coating Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000003925 fat Substances 0.000 description 1
- MSNWSDPPULHLDL-UHFFFAOYSA-K ferric hydroxide Chemical class [OH-].[OH-].[OH-].[Fe+3] MSNWSDPPULHLDL-UHFFFAOYSA-K 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 239000012362 glacial acetic acid Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 229910000398 iron phosphate Inorganic materials 0.000 description 1
- WBJZTOZJJYAKHQ-UHFFFAOYSA-K iron(3+) phosphate Chemical compound [Fe+3].[O-]P([O-])([O-])=O WBJZTOZJJYAKHQ-UHFFFAOYSA-K 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- CRVGTESFCCXCTH-UHFFFAOYSA-N methyl diethanolamine Chemical compound OCCN(C)CCO CRVGTESFCCXCTH-UHFFFAOYSA-N 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009993 protective function Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000001509 sodium citrate Substances 0.000 description 1
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 230000003381 solubilizing effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- LRXTYHSAJDENHV-UHFFFAOYSA-H zinc phosphate Chemical compound [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([O-])=O.[O-]P([O-])([O-])=O LRXTYHSAJDENHV-UHFFFAOYSA-H 0.000 description 1
- 229910000165 zinc phosphate Inorganic materials 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
- C23G1/02—Cleaning or pickling metallic material with solutions or molten salts with acid solutions
- C23G1/08—Iron or steel
- C23G1/081—Iron or steel solutions containing H2SO4
-
- 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
- C11D1/66—Non-ionic compounds
- C11D1/72—Ethers of polyoxyalkylene glycols
-
- 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
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/042—Acids
-
- 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
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/02—Inorganic compounds ; Elemental compounds
- C11D3/04—Water-soluble compounds
- C11D3/046—Salts
-
- 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
- C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
- C11D3/16—Organic compounds
- C11D3/26—Organic compounds containing nitrogen
- C11D3/30—Amines; Substituted amines ; Quaternized amines
-
- 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
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/78—Pretreatment of the material to be coated
-
- 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 for cleaning pretreatment of iron-containing components joined together by welding in the residue from the
- Coatings are produced.
- the component is contacted with an aqueous sulfuric acid pickling containing aminoalcohols, ethoxylates and / or propoxylates of fatty alcohols having from 6 to 12 carbon atoms in the alcohol and iron ions, and effective without the presence of fluorides.
- the present invention comprises an acidic aqueous pickle for the cleaning pretreatment of iron-bonded components assembled by welding.
- Cleaning of metallic components is a necessary first process step in every wet-chemical industrial production stage in order to superficially remove the component from impurities from previous production stages and to adjust the surface for the subsequent finishing in such a way that reproducibly high-quality components result.
- the components are already assembled from different materials or semi-finished products and have a correspondingly complex geometry.
- the object of the cleaning in a production stage for the wet-chemical pretreatment of a metallic component therefore consists primarily in the surface of auxiliaries such as drawing fats,
- Corrosion protection oils to free machining fluids from the cutting or non-cutting shaping material processing or residues of joining processes and to set a uniform solely due to the chemical profile of properties of the metallic base substrate surface.
- a large number of water-based cleaners are generally commercially available, the effect of which is frequently based on removal of material by pickling, which is intensified by solubilizing the contaminants with the aid of surface-active substances.
- the acidic aqueous cleaners disclosed in WO2004 / 065661 are based on this principle for metallic components contaminated with forming aids which, in addition to an inorganic pH-adjusting builder, contain a mixture of nonionic surfactants based on ethoxylated aliphatic alcohols. Regardless of the multitude of available detergent formulations capable of specifically pickling metallic materials and in this way also eliminating surface contaminants, the cleaning of the surfaces of components is in the area of the welded connection of materials consisting of iron for the
- the present invention meets this need and establishes a method for cleaning pretreatment of a component that is at least partially assembled by welding, wherein at least a part of the component, which is a material made of iron or steel, joined by the welding material fit with the rest of the component in which the component containing an aqueous fluoride-free sulfuric acid pickling
- welding in the context of the present invention is the cohesive bonding of similar or dissimilar metals using heat or heat and pressure, as well as using welding consumables, which at least partially produce the cohesive connection.
- Welding consumables are usually in the form of coated metal wires or cored wires with core as well as in the form of powders used in combination with bare metal wires and have in addition to the function to support the material connection by gap bridging a protective function during welding, the therein there is a tendency to prevent scaling of the molten metal constituent of the filler metal and the materials to be joined in the welding area.
- the cladding, core or welding powder of the welding filler often consists of an inorganic, non-metallic material, which is used in the
- Welding process the weld and the solidifying melt completely encloses and protects in this way from the surrounding atmosphere.
- Welding processes according to the invention are all arc welding processes, in particular metal inert gas welding (MIG / MAG), tungsten inert gas welding (TIG) and spray arc welding, as well as laser and electron beam welding processes and combinations of these processes.
- MIG / MAG metal inert gas welding
- TOG tungsten inert gas welding
- spray arc welding as well as laser and electron beam welding processes and combinations of these processes.
- the component is joined in particular by welding which was carried out using silicon-containing welding additives.
- the silicon as a constituent of the welding filler material may be alloying constituent of the wire ("metal electrode"), chemical constituent of the respective slag-forming core or the sheath of the wire ("filler wire electrode” or “rod and wire electrodes”) as well as of welding powder.
- a cleaning pretreatment of a component which is at least partially joined together by welding, wherein by welding at least a part of the component, which is a material made of iron or steel, is integrally bonded to the rest of the component comprises according to the invention at least the contacting the region of this integral weld joint / s and of the immediately adjacent regions / s with the stain, preferably bringing the entire component into contact with the stain.
- welding enclosing area is immediately adjacent to the cohesive welded joint, if in this the average hardness according to Vickers (VH) according to EN ISO 6507-1: 2005 measured with an indentor, which leaves no impression when properly measured, which is one dimension which exceeds the smallest extent of the weld, by more than 5% of that of the same material before
- the component which is pretreated by cleaning in the method according to the invention is preferably at least partially assembled from steel sheets, steel profiles and / or cast steel parts by welding.
- welding slag residues of the welding filler material
- a sulfuric acid pickling is distinguished by the fact that its pH is below 2.0, preferably below 1.0, and at least 20 g / kg of sulfuric acid,
- the sulfuric acid pickle contains at least 60 g / kg, but for economic reasons preferably less than 120 g / kg, more preferably less than 90 g / kg of sulfuric acid calculated as
- the sulfuric acid pickle used in the process according to the invention is also fluoride-free, which is to be equated with the fact that a total of less than 50 mg / kg, preferably less than 10 mg / kg, more preferably less than 1 mg / kg of fluoride ions are contained, wherein the proportion of fluoride ions in a TISAB buffered aliquot of the stain with a fluoride-sensitive electrode at 20 ° C is to determine (TISAB: "Total Lonic Strength Adjustment Buffer"), wherein the volume-related mixing ratio of buffer to the aliquot part of Pickling is 1: 1.
- the TISAB buffer is prepared by dissolving 58 g of NaCl, 1 g of sodium citrate and 50 ml of glacial acetic acid in 500 ml of deionized water ( ⁇ ⁇ ⁇ 1 ) and adjusting the pH to 5.3 by 5N NaOH and filling with a total volume of 1000 ml again with
- amino alcohols according to component a) as an essential constituent of the pickling, in particular 1, 3-aminoalcohols and their ethylene or 1,2-propylene glycol monoethers, such as 2- (2-aminoethoxy) ethanol, 2- (2-aminoethoxy) propanol, proved effective, so that their use is preferred in the process according to the invention, with 1, 3-amino alcohols being particularly preferred.
- the 1, 3-amino alcohols are preferably selected from
- Triethanolamine and mono-, di- and triisopropanolamine are particularly preferred in this context are mono-, di or triethanolamine and mixtures thereof.
- a stain has been found to be advantageous which contains both triethanolamine and monoethanolamine.
- the proportion of aminoalcohols, particularly preferably of 1,3-aminoalcohols, and their ethylene or 1,2-propylene glycol monoethers, particularly preferably of 1,3-aminoalcohols is at least 2 g / kg, more preferably at least 4 g / kg However, for economic reasons, preferably 20 g / kg, more preferably 10 g / kg does not exceed.
- the removal of the weld slag from the components to be cleaned furthermore requires the presence of the nonionic surfactant after component b) in the pickling.
- the nonionic surfactants have a specific HLB value, which promotes good wetting of the components and detachment and dispersion of the welding slag during the pickling process.
- the HLB value (“Hydrophilic-Lipohilic Balance”) is an empirical quantity and is calculated as follows:
- HLB 20 (1-M L / M) with ML: molar mass of the nonionic surfactant's lipophilic group; M: molecular weight of the nonionic surfactant
- the ethoxylates and / or propoxylates of fatty alcohols according to component b) are selected from ethoxylates, preferably from ethoxylates of fatty alcohols containing 8 to 10 ethylene oxide units and having 8 to 12 carbon atoms in the aliphatic radical of the fatty alcohol.
- ethoxylates and / or propoxylates of fatty alcohols according to component b) are selected from ethoxylates, preferably from ethoxylates of fatty alcohols containing 8 to 10 ethylene oxide units and having 8 to 12 carbon atoms in the aliphatic radical of the fatty alcohol.
- the method according to the invention is a proportion of ethoxylates and / or propoxylates of
- the proportion of fatty alcohols according to component b) in the mordant is particularly preferably at least 2 g / kg, but for economic reasons preferably not more than 10 g / kg, particularly preferably not more than 6 g / kg.
- Water-soluble salts preferably water-soluble salts of iron (II) ions, particularly preferably iron (II) sulfate, serve as source of iron ions.
- iron powder of a sulfuric acid pickling containing the components a) and b) can be added and in this way an amount of iron ions are released. If necessary, the pH value of the sulfuric acid pickling has to be readjusted in the latter case due to the acid consumption.
- the component undergoes no pre-passivation of the metal surfaces during the pickling process in the process according to the invention and the surfaces of the cleaned and virtually blank metallic surfaces of the component are subsequently subjected to a wet-chemical conversion treatment.
- a wet-chemical conversion treatment less than 1 g / kg, preferably less than 0.1 g / kg, particularly preferably less than 0.01 g / kg, of dissolved phosphates is calculated in the stain as PO4.
- the stain preferably less than 0.01 g / kg in total, especially preferably less than 0.001 g / kg of water-soluble compounds of the elements Zr and / or Ti based on the respective element.
- the stain in the process of the invention precedes alkaline degreasing of the component, more preferably immediately preceded by an intermediate rinse step, wherein the alkaline degreasing is at a pH of at least 10.
- a rinsing step according to the invention is always the removal of water-soluble residues, not firmly adhering chemical compounds and loose solid particles from the component to be cleaned, which are removed from a previous wet-chemical treatment step, for example, the alkaline degreasing, with the adhering to the component wet film, by means of a water-based liquid medium ,
- the water-based liquid medium contains no chemical components that cause a significant surface coverage of the components made of metallic materials with subgroup elements, semi-metal elements or polymeric organic compounds.
- the cleaning pretreatment of the component serves in particular the preparation of the same for a wet-chemical
- a drying step according to the invention is any method step in which by the
- Provision and use of technical means a drying of the aqueous, on the surface the liquid film adhered by welding is intended, in particular by supplying thermal energy or impressing an air flow.
- Wet-chemical conversion treatment according to the invention is understood as meaning the contacting of at least the iron or steel surfaces of the component with an aqueous one
- composition that is a passivating and essentially inorganic
- Conversion coating produced on the surfaces of the treated iron or steel materials is any inorganic coating on the iron or steel surfaces of the component which does not represent an oxide or hydroxide coating whose cationogenic main constituent is iron ions.
- a conversion coating may therefore be an iron phosphate layer.
- the wet-chemical conversion treatment is preferred by means of acidic aqueous compositions whose pH is above 1 but below 5, and which preferably represents a layer-forming phosphating.
- phosphating represents a phosphating which effects a coating layer calculated as PO4 of at least 0.5 g / m 2 .
- Such phosphations are the
- Drying step preferably without intervening drying step, a
- Dip coating of the component preferably an electrocoating.
- the present invention comprises an acidic aqueous pickling, which is particularly suitable for use in the method according to the invention for the cleansing pretreatment of components which have welded connections of material made of iron and / or steel produced by welding.
- Such mordants according to the invention have a pH below 2.0 and contain i) 40 to 120 g / kg, preferably 60 to 90 g / kg of sulfuric acid calculated as SO4;
- component vii) in the stain according to the invention additionally 0.5 to 5 g / kg, preferably 1 to 3 g / kg of ethoxylates and / or propoxylates of fatty alcohols having 6 to 12 carbon atoms in the alcohol with less than 6 Contain ethylene and / or propylene oxide units.
- an acidic aqueous pickling according to the invention contains less than 1% by weight, preferably less than 0.1% by weight, of components which are not components i) to vi).
- Bonderite® C-AD 1400 (0.3 wt%) at 65 ° C for 10 minutes
- Test section immediately before but with intermediate rinsing step with deionized water ( ⁇ ⁇ 1 ⁇ 1 ) was activated with Bonderite® M-AC 950 at 25 ° C for 1 minute.
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
Description
Claims
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018562355A JP6945562B2 (ja) | 2016-06-10 | 2017-06-09 | 溶接により接合した鉄製部品の洗浄前処理の方法 |
CA3026786A CA3026786A1 (en) | 2016-06-10 | 2017-06-09 | Method of cleaning pretreatment of ferrous components that have been joined by welding |
PL17731096T PL3469115T3 (pl) | 2016-06-10 | 2017-06-09 | Sposób oczyszczającej obróbki wstępnej zmontowanych przez spawanie elementów konstrukcyjnych zawierających żelazo |
EP17731096.8A EP3469115B1 (de) | 2016-06-10 | 2017-06-09 | Verfahren zur reinigenden vorbehandlung von durch schweissen zusammengefügten eisenhaltigen bauteilen |
CN201780033246.0A CN109196142B (zh) | 2016-06-10 | 2017-06-09 | 通过焊接接合的含铁部件的清洁预处理方法 |
KR1020197000696A KR102317571B1 (ko) | 2016-06-10 | 2017-06-09 | 용접에 의해 접합된 철함유 구성요소의 세정 전처리를 위한 방법 |
US16/195,192 US11408080B2 (en) | 2016-06-10 | 2018-11-19 | Method of cleaning pretreatment of ferrous components that have been joined by welding |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016210289.3 | 2016-06-10 | ||
DE102016210289.3A DE102016210289A1 (de) | 2016-06-10 | 2016-06-10 | Verfahren zur reinigenden Vorbehandlung von durch Schweißen zusammengefügten eisenhaltigen Bauteilen |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US16/195,192 Continuation US11408080B2 (en) | 2016-06-10 | 2018-11-19 | Method of cleaning pretreatment of ferrous components that have been joined by welding |
Publications (1)
Publication Number | Publication Date |
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WO2017212011A1 true WO2017212011A1 (de) | 2017-12-14 |
Family
ID=59078039
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2017/064063 WO2017212011A1 (de) | 2016-06-10 | 2017-06-09 | VERFAHREN ZUR REINIGENDEN VORBEHANDLUNG VON DURCH SCHWEIßEN ZUSAMMENGEFÜGTEN EISENHALTIGEN BAUTEILEN |
Country Status (9)
Country | Link |
---|---|
US (1) | US11408080B2 (de) |
EP (1) | EP3469115B1 (de) |
JP (1) | JP6945562B2 (de) |
KR (1) | KR102317571B1 (de) |
CN (1) | CN109196142B (de) |
CA (1) | CA3026786A1 (de) |
DE (1) | DE102016210289A1 (de) |
PL (1) | PL3469115T3 (de) |
WO (1) | WO2017212011A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN111037227B (zh) * | 2019-12-21 | 2021-07-13 | 青岛永达铆焊有限公司 | 一种转向架焊接支撑底座的生产工艺 |
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DE2034627A1 (de) * | 1970-07-13 | 1972-02-03 | Metallgesellschaft Ag | Verfahren zur Oberfiachenbehand lung von Eisen und Stahl |
DE4237021C1 (de) * | 1992-11-02 | 1994-02-10 | Poligrat Gmbh | Mittel zum Beizen der Oberfläche von Chromnickelstählen und Chromstählen sowie Verwendung des Mittels |
WO2004065661A2 (en) | 2003-01-23 | 2004-08-05 | Henkel Kommanditgesellschaft Auf Aktien | Cleaning composition and method for formed metal articles |
US20110056516A1 (en) * | 2007-02-28 | 2011-03-10 | Adair Richard E | Process for surface treatment of metals |
Family Cites Families (14)
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JPS56156781A (en) | 1980-05-02 | 1981-12-03 | Ishihara Yakuhin Kk | Descaling agent for metal |
JPS6026680A (ja) | 1983-07-22 | 1985-02-09 | Kao Corp | 金属洗浄剤組成物 |
JPS627882A (ja) | 1985-07-03 | 1987-01-14 | Nissan Motor Co Ltd | 金属部材の脱脂方法 |
JPH04269387A (ja) | 1991-02-25 | 1992-09-25 | Toyoda Mach Works Ltd | ベーンポンプ |
IT1312556B1 (it) * | 1999-05-03 | 2002-04-22 | Henkel Kgaa | Processo di decapaggio di acciaio inossidabile in assenza di acidonitrico ed in presenza di ioni cloruro |
JP4334709B2 (ja) * | 1999-12-01 | 2009-09-30 | 日本ペイント株式会社 | 熱交換器の化成皮膜用酸性洗浄剤、熱交換器の酸洗方法、熱交換器の処理方法および熱交換器 |
JP4234872B2 (ja) | 2000-02-01 | 2009-03-04 | 新日本製鐵株式会社 | 樹脂密着性と樹脂積層後の耐食性に優れた樹脂被覆容器用表面処理鋼板の製造方法 |
DE60237375D1 (de) * | 2001-08-10 | 2010-09-30 | Hayashibara Biochem Lab | Assoziationsverbindung von trehalose oder maltit mit einer metallionenverbindung |
DE10227362A1 (de) * | 2002-06-19 | 2004-01-08 | Basf Ag | Komplexbildner für die Behandlung von Metall- und Kunstoffoberflächen |
EP1670972A1 (de) * | 2003-09-30 | 2006-06-21 | BASF Aktiengesellschaft | Verfahren zum beizen metallischer oberflächen unter verwendung von alkoxylierten alkinolen |
RU2405863C2 (ru) | 2004-09-25 | 2010-12-10 | Шеметалл Гмбх | Способ удаления лазерной окалины |
DE102007000501A1 (de) * | 2007-10-15 | 2009-04-16 | Chemetall Gmbh | Reinigerzusammensetzung für metallische Oberflächen |
GB2499000A (en) * | 2012-02-02 | 2013-08-07 | Henkel Ag & Co Kgaa | Aqueous acidic pickling solution with hydroxylamine accelerators |
CN102653868B (zh) * | 2012-03-14 | 2016-01-13 | 王福平 | 环保型不锈钢酸洗钝化液 |
-
2016
- 2016-06-10 DE DE102016210289.3A patent/DE102016210289A1/de not_active Withdrawn
-
2017
- 2017-06-09 KR KR1020197000696A patent/KR102317571B1/ko active IP Right Grant
- 2017-06-09 CN CN201780033246.0A patent/CN109196142B/zh active Active
- 2017-06-09 CA CA3026786A patent/CA3026786A1/en not_active Abandoned
- 2017-06-09 PL PL17731096T patent/PL3469115T3/pl unknown
- 2017-06-09 JP JP2018562355A patent/JP6945562B2/ja active Active
- 2017-06-09 EP EP17731096.8A patent/EP3469115B1/de active Active
- 2017-06-09 WO PCT/EP2017/064063 patent/WO2017212011A1/de unknown
-
2018
- 2018-11-19 US US16/195,192 patent/US11408080B2/en active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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DE2034627A1 (de) * | 1970-07-13 | 1972-02-03 | Metallgesellschaft Ag | Verfahren zur Oberfiachenbehand lung von Eisen und Stahl |
DE4237021C1 (de) * | 1992-11-02 | 1994-02-10 | Poligrat Gmbh | Mittel zum Beizen der Oberfläche von Chromnickelstählen und Chromstählen sowie Verwendung des Mittels |
WO2004065661A2 (en) | 2003-01-23 | 2004-08-05 | Henkel Kommanditgesellschaft Auf Aktien | Cleaning composition and method for formed metal articles |
US20110056516A1 (en) * | 2007-02-28 | 2011-03-10 | Adair Richard E | Process for surface treatment of metals |
Also Published As
Publication number | Publication date |
---|---|
CN109196142B (zh) | 2022-09-20 |
JP2019517624A (ja) | 2019-06-24 |
CN109196142A (zh) | 2019-01-11 |
PL3469115T3 (pl) | 2020-11-02 |
CA3026786A1 (en) | 2017-12-14 |
DE102016210289A1 (de) | 2017-12-14 |
EP3469115B1 (de) | 2020-04-22 |
KR102317571B1 (ko) | 2021-10-25 |
JP6945562B2 (ja) | 2021-10-06 |
US11408080B2 (en) | 2022-08-09 |
EP3469115A1 (de) | 2019-04-17 |
KR20190017921A (ko) | 2019-02-20 |
US20190085469A1 (en) | 2019-03-21 |
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