EP3927797A1 - Schmierstoff für die heissumformung von metallen - Google Patents
Schmierstoff für die heissumformung von metallenInfo
- Publication number
- EP3927797A1 EP3927797A1 EP20706258.9A EP20706258A EP3927797A1 EP 3927797 A1 EP3927797 A1 EP 3927797A1 EP 20706258 A EP20706258 A EP 20706258A EP 3927797 A1 EP3927797 A1 EP 3927797A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lubricant
- cellulose
- graphite
- weight
- particularly preferably
- 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.)
- Granted
Links
- 239000000314 lubricant Substances 0.000 title claims abstract description 147
- 229910052751 metal Inorganic materials 0.000 title claims abstract description 24
- 239000002184 metal Substances 0.000 title claims abstract description 24
- 150000002739 metals Chemical class 0.000 title claims abstract description 17
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 58
- 239000010439 graphite Substances 0.000 claims abstract description 57
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 57
- 239000000203 mixture Substances 0.000 claims abstract description 49
- 239000007787 solid Substances 0.000 claims abstract description 36
- 239000000454 talc Substances 0.000 claims abstract description 32
- 229910052623 talc Inorganic materials 0.000 claims abstract description 32
- 239000010445 mica Substances 0.000 claims abstract description 29
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 29
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052700 potassium Inorganic materials 0.000 claims abstract description 21
- 239000011591 potassium Substances 0.000 claims abstract description 21
- 230000001050 lubricating effect Effects 0.000 claims abstract description 14
- 239000002562 thickening agent Substances 0.000 claims abstract description 12
- 239000003139 biocide Substances 0.000 claims abstract description 7
- 239000002270 dispersing agent Substances 0.000 claims abstract description 7
- 239000000230 xanthan gum Substances 0.000 claims abstract description 7
- 235000010493 xanthan gum Nutrition 0.000 claims abstract description 7
- 239000004375 Dextrin Substances 0.000 claims abstract description 6
- 229920001353 Dextrin Polymers 0.000 claims abstract description 6
- 235000019425 dextrin Nutrition 0.000 claims abstract description 6
- -1 ethylhydroxy methyl Chemical group 0.000 claims abstract description 6
- 229920001285 xanthan gum Polymers 0.000 claims abstract description 6
- 229940082509 xanthan gum Drugs 0.000 claims abstract description 6
- 229920002678 cellulose Polymers 0.000 claims abstract description 5
- 239000001913 cellulose Substances 0.000 claims abstract description 5
- 235000010980 cellulose Nutrition 0.000 claims abstract description 5
- 229920000609 methyl cellulose Polymers 0.000 claims abstract description 4
- 239000001923 methylcellulose Substances 0.000 claims abstract description 4
- 235000010981 methylcellulose Nutrition 0.000 claims abstract description 4
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 4
- LNAZSHAWQACDHT-XIYTZBAFSA-N (2r,3r,4s,5r,6s)-4,5-dimethoxy-2-(methoxymethyl)-3-[(2s,3r,4s,5r,6r)-3,4,5-trimethoxy-6-(methoxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6r)-4,5,6-trimethoxy-2-(methoxymethyl)oxan-3-yl]oxyoxane Chemical compound CO[C@@H]1[C@@H](OC)[C@H](OC)[C@@H](COC)O[C@H]1O[C@H]1[C@H](OC)[C@@H](OC)[C@H](O[C@H]2[C@@H]([C@@H](OC)[C@H](OC)O[C@@H]2COC)OC)O[C@@H]1COC LNAZSHAWQACDHT-XIYTZBAFSA-N 0.000 claims abstract description 3
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims abstract description 3
- 239000001856 Ethyl cellulose Substances 0.000 claims abstract description 3
- ZZSNKZQZMQGXPY-UHFFFAOYSA-N Ethyl cellulose Chemical compound CCOCC1OC(OC)C(OCC)C(OCC)C1OC1C(O)C(O)C(OC)C(CO)O1 ZZSNKZQZMQGXPY-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims abstract description 3
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims abstract description 3
- 229920001479 Hydroxyethyl methyl cellulose Polymers 0.000 claims abstract description 3
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 claims abstract description 3
- 239000001768 carboxy methyl cellulose Substances 0.000 claims abstract description 3
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims abstract description 3
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims abstract description 3
- 229920001249 ethyl cellulose Polymers 0.000 claims abstract description 3
- 235000019325 ethyl cellulose Nutrition 0.000 claims abstract description 3
- 235000010944 ethyl methyl cellulose Nutrition 0.000 claims abstract description 3
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims abstract description 3
- 239000001863 hydroxypropyl cellulose Substances 0.000 claims abstract description 3
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 claims abstract description 3
- 239000001866 hydroxypropyl methyl cellulose Substances 0.000 claims abstract description 3
- 229920003088 hydroxypropyl methyl cellulose Polymers 0.000 claims abstract description 3
- 235000010979 hydroxypropyl methyl cellulose Nutrition 0.000 claims abstract description 3
- UFVKGYZPFZQRLF-UHFFFAOYSA-N hydroxypropyl methyl cellulose Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC2C(C(O)C(OC3C(C(O)C(O)C(CO)O3)O)C(CO)O2)O)C(CO)O1 UFVKGYZPFZQRLF-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229920003087 methylethyl cellulose Polymers 0.000 claims abstract description 3
- 229920002689 polyvinyl acetate Polymers 0.000 claims abstract description 3
- 239000011118 polyvinyl acetate Substances 0.000 claims abstract description 3
- 229910052628 phlogopite Inorganic materials 0.000 claims description 29
- 238000004519 manufacturing process Methods 0.000 claims description 15
- 238000000034 method Methods 0.000 claims description 15
- YGANSGVIUGARFR-UHFFFAOYSA-N dipotassium dioxosilane oxo(oxoalumanyloxy)alumane oxygen(2-) Chemical compound [O--].[K+].[K+].O=[Si]=O.O=[Al]O[Al]=O YGANSGVIUGARFR-UHFFFAOYSA-N 0.000 claims description 12
- 229910052627 muscovite Inorganic materials 0.000 claims description 12
- 238000010924 continuous production Methods 0.000 claims description 10
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims description 8
- 239000000853 adhesive Substances 0.000 claims description 8
- 230000001070 adhesive effect Effects 0.000 claims description 8
- 229910052796 boron Inorganic materials 0.000 claims description 8
- 239000005038 ethylene vinyl acetate Substances 0.000 claims description 7
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims description 7
- 239000007900 aqueous suspension Substances 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 6
- 229920002472 Starch Polymers 0.000 abstract 1
- 239000002318 adhesion promoter Substances 0.000 abstract 1
- 239000002518 antifoaming agent Substances 0.000 abstract 1
- 239000012752 auxiliary agent Substances 0.000 abstract 1
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical class O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 abstract 1
- 230000003115 biocidal effect Effects 0.000 abstract 1
- 125000002057 carboxymethyl group Chemical group [H]OC(=O)C([H])([H])[*] 0.000 abstract 1
- 239000000470 constituent Substances 0.000 abstract 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 abstract 1
- 229910021647 smectite Inorganic materials 0.000 abstract 1
- 235000019698 starch Nutrition 0.000 abstract 1
- 239000008107 starch Substances 0.000 abstract 1
- 238000009472 formulation Methods 0.000 description 18
- 238000005259 measurement Methods 0.000 description 10
- 238000005096 rolling process Methods 0.000 description 9
- 238000009736 wetting Methods 0.000 description 8
- 235000002639 sodium chloride Nutrition 0.000 description 7
- 239000000725 suspension Substances 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 239000000463 material Substances 0.000 description 6
- 238000012545 processing Methods 0.000 description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 5
- 229910052742 iron Inorganic materials 0.000 description 5
- 239000002245 particle Substances 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 5
- 239000007921 spray Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 239000000654 additive Substances 0.000 description 4
- 229910021538 borax Inorganic materials 0.000 description 4
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical class OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000010790 dilution Methods 0.000 description 4
- 239000012895 dilution Substances 0.000 description 4
- 239000011777 magnesium Substances 0.000 description 4
- 229910052749 magnesium Inorganic materials 0.000 description 4
- 229910052615 phyllosilicate Inorganic materials 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 239000004328 sodium tetraborate Substances 0.000 description 4
- 235000010339 sodium tetraborate Nutrition 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000003513 alkali Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 235000010755 mineral Nutrition 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- LRFVTYWOQMYALW-UHFFFAOYSA-N 9H-xanthine Chemical compound O=C1NC(=O)NC2=C1NC=N2 LRFVTYWOQMYALW-UHFFFAOYSA-N 0.000 description 2
- BTBUEUYNUDRHOZ-UHFFFAOYSA-N Borate Chemical compound [O-]B([O-])[O-] BTBUEUYNUDRHOZ-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 229910001589 annite Inorganic materials 0.000 description 2
- 239000004327 boric acid Substances 0.000 description 2
- 150000001639 boron compounds Chemical class 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 229910001596 celadonite Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 239000000383 hazardous chemical Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 235000021317 phosphate Nutrition 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000011780 sodium chloride Substances 0.000 description 2
- 239000008247 solid mixture Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- UUGLSEIATNSHRI-UHFFFAOYSA-N 1,3,4,6-tetrakis(hydroxymethyl)-3a,6a-dihydroimidazo[4,5-d]imidazole-2,5-dione Chemical compound OCN1C(=O)N(CO)C2C1N(CO)C(=O)N2CO UUGLSEIATNSHRI-UHFFFAOYSA-N 0.000 description 1
- UUIVKBHZENILKB-UHFFFAOYSA-N 2,2-dibromo-2-cyanoacetamide Chemical compound NC(=O)C(Br)(Br)C#N UUIVKBHZENILKB-UHFFFAOYSA-N 0.000 description 1
- BXGYYDRIMBPOMN-UHFFFAOYSA-N 2-(hydroxymethoxy)ethoxymethanol Chemical compound OCOCCOCO BXGYYDRIMBPOMN-UHFFFAOYSA-N 0.000 description 1
- 229940100484 5-chloro-2-methyl-4-isothiazolin-3-one Drugs 0.000 description 1
- 229910052582 BN Inorganic materials 0.000 description 1
- 241000894006 Bacteria Species 0.000 description 1
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 description 1
- LVDKZNITIUWNER-UHFFFAOYSA-N Bronopol Chemical compound OCC(Br)(CO)[N+]([O-])=O LVDKZNITIUWNER-UHFFFAOYSA-N 0.000 description 1
- 241000233866 Fungi Species 0.000 description 1
- 239000001828 Gelatine Substances 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229920000881 Modified starch Polymers 0.000 description 1
- 239000004368 Modified starch Substances 0.000 description 1
- 239000002202 Polyethylene glycol Substances 0.000 description 1
- NPYPAHLBTDXSSS-UHFFFAOYSA-N Potassium ion Chemical compound [K+] NPYPAHLBTDXSSS-UHFFFAOYSA-N 0.000 description 1
- 240000004808 Saccharomyces cerevisiae Species 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- 239000005708 Sodium hypochlorite Substances 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- DMSMPAJRVJJAGA-UHFFFAOYSA-N benzo[d]isothiazol-3-one Chemical compound C1=CC=C2C(=O)NSC2=C1 DMSMPAJRVJJAGA-UHFFFAOYSA-N 0.000 description 1
- 150000001642 boronic acid derivatives Chemical class 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- DHNRXBZYEKSXIM-UHFFFAOYSA-N chloromethylisothiazolinone Chemical compound CN1SC(Cl)=CC1=O DHNRXBZYEKSXIM-UHFFFAOYSA-N 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- DGVMNQYBHPSIJS-UHFFFAOYSA-N dimagnesium;2,2,6,6-tetraoxido-1,3,5,7-tetraoxa-2,4,6-trisilaspiro[3.3]heptane;hydrate Chemical compound O.[Mg+2].[Mg+2].O1[Si]([O-])([O-])O[Si]21O[Si]([O-])([O-])O2 DGVMNQYBHPSIJS-UHFFFAOYSA-N 0.000 description 1
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- HDERJYVLTPVNRI-UHFFFAOYSA-N ethene;ethenyl acetate Chemical group C=C.CC(=O)OC=C HDERJYVLTPVNRI-UHFFFAOYSA-N 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 229920000159 gelatin Polymers 0.000 description 1
- 235000019322 gelatine Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 239000003879 lubricant additive Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- BEGLCMHJXHIJLR-UHFFFAOYSA-N methylisothiazolinone Chemical compound CN1SC=CC1=O BEGLCMHJXHIJLR-UHFFFAOYSA-N 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000019426 modified starch Nutrition 0.000 description 1
- 229910021382 natural graphite Inorganic materials 0.000 description 1
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 1
- JPMIIZHYYWMHDT-UHFFFAOYSA-N octhilinone Chemical compound CCCCCCCCN1SC=CC1=O JPMIIZHYYWMHDT-UHFFFAOYSA-N 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 239000005365 phosphate glass Substances 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920000151 polyglycol Polymers 0.000 description 1
- 239000010695 polyglycol Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229910001414 potassium ion Inorganic materials 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000011833 salt mixture Substances 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000005368 silicate glass Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- UKLNMMHNWFDKNT-UHFFFAOYSA-M sodium chlorite Chemical compound [Na+].[O-]Cl=O UKLNMMHNWFDKNT-UHFFFAOYSA-M 0.000 description 1
- 229960002218 sodium chlorite Drugs 0.000 description 1
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 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
- 235000019832 sodium triphosphate Nutrition 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- 230000003390 teratogenic effect Effects 0.000 description 1
- 238000009785 tube rolling Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 229940075420 xanthine Drugs 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M173/00—Lubricating compositions containing more than 10% water
- C10M173/02—Lubricating compositions containing more than 10% water not containing mineral or fatty oils
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/10—Compounds containing silicon
- C10M2201/102—Silicates
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/10—Compounds containing silicon
- C10M2201/102—Silicates
- C10M2201/1026—Silicates used as thickening agents
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/10—Compounds containing silicon
- C10M2201/102—Silicates
- C10M2201/103—Clays; Mica; Zeolites
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/12—Glass
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/022—Ethene
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/02—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/06—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to an acyloxy radical of saturated carboxylic or carbonic acid
- C10M2209/062—Vinyl esters of saturated carboxylic or carbonic acids, e.g. vinyl acetate
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
- C10M2209/12—Polysaccharides, e.g. cellulose, biopolymers
- C10M2209/126—Polysaccharides, e.g. cellulose, biopolymers used as thickening agents
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/04—Detergent property or dispersant property
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/06—Oiliness; Film-strength; Anti-wear; Resistance to extreme pressure
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/16—Antiseptic; (micro) biocidal or bactericidal
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/18—Anti-foaming property
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2030/00—Specified physical or chemical properties which is improved by the additive characterising the lubricating composition, e.g. multifunctional additives
- C10N2030/40—Low content or no content compositions
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/20—Metal working
- C10N2040/241—Manufacturing joint-less pipes
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
- C10N2040/00—Specified use or application for which the lubricating composition is intended
- C10N2040/20—Metal working
- C10N2040/242—Hot working
Definitions
- the invention relates to an essentially graphite-free and boron-free mandrel bar lubricant for use in the hot forming of metals for the production of seamless tubes, in particular in so-called continuous processes or push bench processes.
- lubricants are required that ensure optimal sliding of the metal between the processing tools at high processing temperatures.
- temperatures of 1,100 to 1,300 ° C can occur. If hard or difficult to deform metals are processed, the processing tools can wear out quickly. High coefficients of friction between tool and workpiece also lead to increased energy consumption during machining.
- the shaping of seamless tubes takes place in the main process step by rolling a prefabricated hollow block at around 1200 ° C to 1300 ° C over a mandrel bar.
- the mandrel bar is removed from the rolled pipe blank and cooled in a cooling bath or by spray cooling with water and prepared for the next rolling process.
- This preparation of the mandrel rod after cooling also includes lubrication in which the lubricant is sprayed onto the mandrel rod.
- This lubrication is essential for optimal sliding of the hollow block on the mandrel bar during the rolling process and is also decisive for the later quality and dimensional accuracy of the pipe, in particular for the condition of the inner surface of the pipe.
- the mandrel bar lubricants used must have good lubricating properties and at the same time withstand the high processing temperatures.
- the good lubricating properties not only include the fact that the lubricants are suitable for reducing the coefficient of friction between the mandrel bar, but also that they have good wetting properties and that they form a lubricant film that is as continuous as possible with a sufficient layer thickness on the mandrel bar.
- the lubricants contain additives that additionally reduce the formation of scale on the surface of the metal being worked, such as boron compounds, e.g. Boric acid salts which, due to their solubility in water, can get into the wastewater from the rolling process, which, however, leads to considerable disposal problems because of their teratogenic effect.
- additives that additionally reduce the formation of scale on the surface of the metal being worked, such as boron compounds, e.g. Boric acid salts which, due to their solubility in water, can get into the wastewater from the rolling process, which, however, leads to considerable disposal problems because of their teratogenic effect.
- Known lubricants can be divided into graphite-containing and graphite-free lubricants.
- Graphite-free lubricants are also referred to as “white” lubricants because they are not colored by the strong inherent color of graphite.
- Graphite is a suitable lubricant additive, especially for high-temperature applications, such as the hot forming of metals, because graphite is particularly heat-resistant and, both in combination with mineral oils and inorganic salts, has particularly good lubricating properties.
- a disadvantage of graphite-containing lubricants is that the high carbon content can lead to carburization of the metal surface of the workpiece. This can result in defective end products with poor processing or material properties. The result is high workpiece scrap.
- the use of graphite in the work environment counteracts health concerns, which make particularly complex protective measures necessary for the people working in the work environment.
- a group of lubricants which can be graphite or graphite-free, contain salts or salt mixtures that melt on the hot surface of the workpiece and, through the melt, form a lubricating separating layer between the workpiece and the tool.
- salts or salt mixtures that melt on the hot surface of the workpiece and, through the melt, form a lubricating separating layer between the workpiece and the tool.
- only certain salts are suitable for this, and some of them have such high melting temperatures that the lubricants are only fully usable when they have reached operating temperature. This is particularly disadvantageous when the processing machines are started up when the tools or workpieces are still cold.
- borax is used as a low-melting salt.
- lubricants containing borax can also cause the tool and workpiece to stick together, with the result that the tool is damaged or the machines come to a standstill. Furthermore, borax-containing lubricants adversely affect the metal surface of the tool or workpiece.
- Other known lubricants use raw table salt, which, however, can lead to material being removed from the workpiece and material being deposited elsewhere and thus to scoring. In addition, table salt leads to increased metal corrosion on the systems, which results in high maintenance costs.
- Water-soluble lubricants based on alkali phosphates and alkali borates which are also used in a mixture with various metal oxides such as zinc oxide or iron oxide, attack the surface of the metal to be processed.
- Another group of high-temperature lubricants contains alkali phosphate glasses or silicate glasses with various additives such as boron or aluminum. These lubricants have good lubricating properties, but are poorly soluble in water, which makes their removal from the machined workpiece considerably more difficult and requires a great deal of technical effort.
- mandrel bar lubricants with a high graphite content are still predominantly used due to the high demands on lubricating properties and temperature resistance.
- Graphite-free or low-graphite (“white”) mandrel bar lubricants are rarely used despite the disadvantages described above and others.
- Lubricants suitable for this are expensive and require large amounts to be used, which has a negative effect on the production costs and thus on the costs of the product.
- CN-A-104 694 240 discloses a graphite-free lubricant composition which contains 10-90% by weight of mineral clay, 0-5% by weight of stearate, 0.1-5% by weight of a thickener, preferably sodium polyacrylate, 5-30% by weight of water-soluble borate and / or boric acid and other additives such as surface-active substances and polymers.
- CN-A-102 732 367 discloses a graphite-free lubricant composition which contains 15-20% by weight of glass powder, 2.5-8% by weight of a white solid lubricant, 0.5-3.5% by weight of a thickener, and other additives such as surfactants and resins.
- the white solid lubricant comprises one or more compounds from the group consisting of mica, talc and boron nitride. Gelatine or cellulose are used as thickeners.
- the known lubricants for the hot forming of metals therefore have a number of disadvantages due to and depending on their respective composition, such as health and environmental hazards and the associated protective measures required, high consumption due to the high amounts required, high costs of the components of the compositions, unfavorable coefficients of friction, adverse effects on the manufacturing process and / or the properties of the manufactured product, such as sticking or welding Tool and workpiece, carburization or other damage to the workpiece surface, unfavorable wetting properties and / or unfavorable layer thicknesses.
- the object of the present invention was therefore to provide a mandrel bar lubricant which overcomes the disadvantages of the prior art and which is particularly suitable as a mandrel bar lubricant for the hot forming of metals in the production of seamless tubes in continuous processes or push bench processes and compared to those in these processes so far
- the graphite-based lubricants used contain no or at most a small amount of graphite, has good coefficients of friction and good wetting properties and, compared to known lubricants, requires lower quantities and / or can be produced more cost-effectively than known lubricants for the same application
- a lubricant for the hot forming of metals in particular for lubricating the mandrel bar and / or the hollow block in the production of seamless tubes, the lubricant containing at least the following components, based on the solid content:
- a solid lubricant consisting of a mixture of talc and a potassium mica, preferably phlogopite, muscovite or a mixture of both, particularly preferably phlogopite, the ratio of talc to potassium mica in the solid lubricant 2, 0 to 5.0,
- an adhesive selected from a polyvinyl acetate, sodium water glass and dextrin or a mixture of the aforementioned, preferably ethylene-vinyl acetate copolymer (EVA),
- EVA ethylene-vinyl acetate copolymer
- a thickener selected from hydroxycellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, carboxymethyl cellulose, methyl cellulose, ethyl cellulose, methylethyl cellulose, hydroxyethylmethyl cellulose, hydroxypropylmethyl cellulose, ethylhydroxymethyl cellulose, carboxymethylhydroxycellulose, modified starch and xanthine, organic dextrin, Gum, preferably xanthan gum, 0 to 10% by weight of further auxiliaries, preferably selected from defoamers, dispersants and biocides and not more than 10% by weight of graphite, preferably not more than 5% by weight of graphite, particularly preferably no graphite.
- An essential advantage of the lubricant according to the invention is that it has very good coefficients of friction and wetting properties, especially in the production of seamless tubes in continuous processes or impact bench processes, which, with the same or lower layer thicknesses or quantities used, are comparable or comparable to those of graphite-containing lubricants currently used in these processes are even superior to these.
- the lubricant according to the invention can therefore replace the graphite-containing lubricants previously used in continuous processes or shock bench processes and at the same time save costs, disposal expenditure and expenditure on occupational safety measures.
- the lubricant according to the invention preferably contains no more than 5% by weight of boron-containing compounds, particularly preferably no boron-containing compounds such as boric acid, borax, boric acid salts or borate-containing minerals, which are often used in known lubricants for the hot forming of metals.
- the lubricant according to the invention can therefore overcome the disadvantages of graphite-based and boron-containing lubricants.
- the lubricant is sprayed onto the cooled mandrel bar as an aqueous suspension in preparation for the subsequent rolling step, but the mandrel bar still has a temperature of around 100 ° C.
- An essential aspect for a good lubricating performance of the lubricant is the complete, continuous wetting of the mandrel rod and in particular the layer thickness of the lubricant on the wetted mandrel rod.
- the lubricant according to the invention is characterized by good adhesion to the mandrel bar and good and uniform wetting of the surface of the mandrel bar.
- the layer thickness or amount of lubricant required for good lubrication in these processes is the same or even less than with graphite-containing lubricants currently used in these processes.
- the layer thickness or the amount of lubricant used refers to the amount of solid lubricant on a specific surface of the tool, ie the mandrel bar, measured in grams of solid lubricant per square meter [g / m 2 ].
- a suitable layer thickness of the lubricant according to the invention is of the order of magnitude about 30 to 150 g / m 2 surface area of the mandrel bar, preferably 50 to 120 g / m 2 , particularly preferably 70 to 100 g / m 2 , depending on the composition of the lubricant.
- the wetting of the surface of the mandrel bar and the layer thickness can be adjusted by the amount of lubricant suspension sprayed onto the surface of the mandrel bar or the duration of the spray, as well as by the viscosity and adhesion of the suspension. It has been shown that the same or better lubricating effect can be achieved with the lubricant according to the invention compared to commercially available graphite-containing lubricants for the same purpose with the same or even smaller layer thickness or amount used. This means that considerable costs can be saved in the production of seamless tubes compared to the currently used graphite-containing lubricants.
- An essential feature of the lubricant according to the invention is the proportion of solid lubricant, which is a mixture of talc and potassium mica and the ratio of talc to potassium mica being at least 2.0 and not exceeding 5.0.
- the ratio of talc to potassium mica in the solid lubricant is 2.5 to 4.5, preferably 3.0 to 4.0, particularly preferably 3.3 to 3.8,
- Talc which according to the invention is one of the main components of the solid lubricant in the lubricant according to the invention, is the pulverized form of the mineral talc, a sheet silicate (phyllosilicate), more precisely magnesium silicate hydrate. Depending on the modification, it crystallizes as talc-1A in the triclinic or as talc-2M in the monoclinic crystal system.
- Potassium mica which according to the invention form the further main component of the solid lubricant in the lubricant according to the invention, but is contained in a smaller amount than talc, is also sheet silicates (phyllosilicates), which, however, have a potassium ion.
- Potassium mica suitable according to the invention include mica
- muscovite-celadonite series dioctahedral
- KA AISi30io (OH) 2
- aluminoseladonite K AI (Mg, Fe 2+ ) [SUOIO (OH) 2] ferro-aluminoseladonite,
- K AI Mg, Fe 2+ ) [Si 4 Oio (OH) 2 ], celadonite, K Fe 3+ (Mg, Fe 2+ ) [Si 4 Oi 0 (OH) 2 ], ferroseladonite,
- Tainiolite group Tainiolite, K Li Mg2 [S1 4 O 10 F 2 ],
- the potassium mica in the solid lubricant of the lubricant according to the invention therefore contains at least 60% by weight phlogopite, preferably at least 80% by weight phlogopite, particularly preferably at least 90% by weight phlogopite. Very particular preference is given to using only phlogopite as the potassium mica.
- the lubricant according to the invention is sprayed onto the mandrel rod, possibly also the hollow block, as a suspension of the solids in water during the hot forming of metals, in particular to lubricate the mandrel bar and / or the hollow block in the production of seamless tubes.
- the lubricant according to the invention also contains 10 to 30% by weight of an adhesive and 2 to 10% by weight of a thickener.
- Ethylene-vinyl acetate copolymer (EVA) has proven to be an adhesive and xanthan gum has proven particularly advantageous as a thickener.
- EVA Ethylene-vinyl acetate copolymer
- xanthan gum has proven particularly advantageous as a thickener.
- other suitable adhesives and thickeners as mentioned herein can also be used.
- the person skilled in the art will be able to easily determine the quantities of adhesive and thickener suitable for the overall composition of the lubricant in order to ensure good processability and usability of the lubricant suspension in the available one for the respective application Spray system, wetting, adhesion and layer thickness formation on the tool surface.
- the lubricant according to the invention also contains 0 to 10% by weight of further auxiliaries which can be used with advantage in lubricants of the type mentioned here and depending on the application.
- auxiliaries preferably include defoamers, dispersants and biocides.
- Defoamers are intended to prevent or at least reduce disadvantageous foam formation when the lubricant suspension is sprayed onto the tool, for example the mandrel bar.
- Suitable defoamers include polyglycols, amorphous and / or hydrophobic silica, polysiloxanes, dimethylpolysiloxanes, organically modified polysiloxanes and naphthalene condensates.
- Dispersants can be used with advantage in order to improve the distribution of the solids of the lubricant in the aqueous suspension and to prevent or slow down the sedimentation of the solids in the suspension.
- Suitable dispersants include C16-C18 alcohols, ethoxylate salts, sodium and potassium tripolyphosphates, polyethylene glycol and sodium silicate.
- Biocides can be used with advantage to prevent or at least reduce the multiplication of microorganisms, such as bacteria, fungi and / or yeasts, in the lubricant, in particular when the lubricant is stored for a long time.
- Suitable biocides include 1,2-benzisothiazol-3 (2H) -one, 5-chloro-2-methyl-4-isothiazolin-3-one, 2-methyl-2H-isothiazol-3-one, 2-octyl- 2H-isothiazol-3-one, ethylenedioxydimethanol, tetrahydro-1, 3,4,6-tetrakis (hydroxymethyl) imidazo [4,5- d] imidazol-2,5 (1H, 3H) -dione, 2-bromo- 2-nitropropane-1,3-diol, 2,2-dibromo-2-carbamoylacetonitrile, sodium hypochlorite and sodium chlorite.
- a particular advantage of the lubricant according to the invention is that it can replace graphite-based lubricants currently used in continuous processes and push bench processes for the production of seamless pipes and thus can overcome the disadvantages of using graphite. Nevertheless, graphite is an excellent lubricant and, due to its heat resistance, is particularly suitable for the hot forming of metals. The graphite-based lubricants previously used for these applications therefore regularly contain high proportions of graphite.
- the lubricant according to the invention is intended to overcome the disadvantages of graphite-containing lubricants and replace them, in embodiments of the lubricant according to the invention it can be advantageous to add a certain proportion of graphite in order to adjust and further improve the properties of the lubricant.
- the proportion of graphite in the lubricant must not be more than 10% by weight of graphite, preferably not more than 5 % By weight graphite.
- such a proportion of graphite in the lubricant according to the invention is significantly lower than the high proportion of graphite in previously used graphite-containing lubricants and is therefore not associated with the disadvantages of graphite to the known extent.
- the lubricant according to the invention particularly preferably does not contain any graphite.
- the invention further comprises the use of the lubricant composition according to the invention for lubricating the mandrel rod and / or the hollow block in the production of seamless tubes by hot forming of metals, preferably in the continuous process or push bench process.
- the lubricant is expediently sprayed as an aqueous suspension onto the mandrel bar, which has a temperature of approx. 100 ° C, before it is introduced into the hollow block.
- the lubricant according to the invention is sprayed onto the mandrel bar in a layer thickness (A set amount) of 30 to 150 g / m 2 surface area.
- the layer thickness (amount used) is preferably 50 to 120 g / m 2 of sprayed surface, particularly preferably 70 to 100 g / m 2 of sprayed surface.
- Viscosity measurements were made with a R / S Plus rotational rheometer from Brookfield (AME-TEK GmbH - BU Brookfield, Lorch, Germany) with a coaxial cylinder (40 mm spindle) in accordance with DIN 53019 and according to the manufacturer's instructions and using the Rheo3000 software at a sample temperature from 20 ° C +/- 0.4 ° C.
- the tribometer consists of an inductively heated, rotating disc made of Thermudur2342 EFS steel with a diameter of 280 mm and a table that can be moved hydraulically in the direction of the rotating disc, on which a test body made of S355MC steel is mounted.
- the rotating disk was heated to 100 ° C ( ⁇ 10 ° C) and sprayed with the lubricant in the desired layer thickness. The distance between the spray nozzle and the window surface was 10 mm.
- the lubricant was applied in a layer thickness of 80 g / m 2 and allowed to act for about 5 seconds before the measurement.
- the disk was rotated at 10 rpm. rotates.
- the test specimen was heated to 1230 ° C ( ⁇ 20 ° C), pressed against the rotating disk by means of the hydraulically movable table with a contact force (FN) of 32,000 N ( ⁇ 2,000 N) and the radial force acting on the disk perpendicular to the contact force (FR) measured over a period of several seconds.
- the layer thickness of a lubricant applied to the disk of the tribometer under the spraying conditions was checked by applying a magnetic tape film to the surface of the disk before the lubricant was sprayed on and the lubricant was then sprayed on.
- the magnetic tape film was removed, weighed with the lubricant applied to it and the layer thickness was determined from the difference to the weight of the film not exposed to the lubricant.
- the graphite-based mandrel bar lubricant PHOSPHATHERM ® 120 GLW 30 (hereinafter referred to as "PH120") from Chemische Fabrik Budenheim KG, which is available as a 30% suspension, was used as a comparative lubricant.
- Muscovite 1 chemical composition: S1O 2 : 44%, Al 2 O 3 : 31%, K 2 O: 9% Fe203: 3%; mean particle size (D50): 45 pm
- Muscovite 2 chemical composition: S1O 2 : 51.5%, AI 2 O 3 : 27.0%, K 2 O: 10.0%, Fe203:
- Adhesive vinyl acetate-ethylene copolymer (EVA)
- Figure 1 shows the coefficients of friction of the compositions examined.
- the formulations B and E with a ratio of talc to phlogopite below 3.3 and above 3.8 showed similar results as formulation F with phlogopite alone.
- Formulation A showed similar results as formulation G with talc alone.
- Formulation H in which mica muscovite (muscovite 1) was used instead of phlogopite, showed significantly worse results than formulation F with phlogopite alone.
- Different amounts of solid lubricant from talc plus phlogopite were significantly below the comparison formulation PH120 with the graphite-based product according to the prior art.
- FIG. 2 shows the coefficients of friction of the compositions examined.
- the ratio of talc to phlogopite in the range from 3.3 to 3.8 which has proven to be particularly advantageous with regard to the achievable coefficient of friction, approximately 13% talc plus phlogopite (formulations S and T) had comparably good coefficients of friction as with 19 , 5% talc plus phlogopite (recipes C and D).
- formulations R and U the coefficients of friction were higher, but still significantly below the comparison formulation PH 120 with the prior art product based on graphite.
- FIG. 3 shows the coefficient of friction of the compositions examined.
- alternative mica muscovite 1 and muscovite 2 were compared with phlogopite in formulation C and with the same amount of pure graphite instead of talc plus mica in formulation I. While the best friction values were achieved with the same amount of phlogopite (formulation C), the mica muscovite 1 and muscovite 2 (formulations L and M) also showed good friction values, which were only slightly above the use of the same total amount of pure graphite instead of talc plus mica (Recipe I) were.
- FIG. 4 shows the coefficients of friction of PH 120 and composition C with different layer thicknesses.
- the comparison of different layer thicknesses of recipe C with the comparative lubricant PH 120 shows again that recipe C according to the invention is even with the smallest
- the amount used with a layer thickness of only 30 g / m 2 still provides better, but at least comparable coefficients of friction compared to the comparative lubricant PH 120 when used twice to more than three times the amount used.
- the composition “C” used in the preceding comparisons contains 25% (% by weight) solids and 75% water.
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Abstract
Description
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DE102019104540.1A DE102019104540B4 (de) | 2019-02-22 | 2019-02-22 | Schmierstoff und dessen Verwendung für die Heißumformung von Metallen |
PCT/EP2020/054621 WO2020169800A1 (de) | 2019-02-22 | 2020-02-21 | Schmierstoff für die heissumformung von metallen |
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WO2014195166A1 (en) | 2013-06-07 | 2014-12-11 | Hydro Aluminium Rolled Products Gmbh | Coating of a metal sheet or strip |
CN104059740A (zh) | 2014-06-28 | 2014-09-24 | 张家港市华程异型钢管有限公司 | 异型钢管冷拔生产用润滑剂 |
CN104694240B (zh) | 2015-02-13 | 2018-02-13 | 衡阳市金化科技有限公司 | 水基粘土润滑剂 |
JP6757556B2 (ja) | 2015-04-27 | 2020-09-23 | 日本パーカライジング株式会社 | 固体潤滑剤、金属材料用潤滑皮膜剤、表面処理金属材料、及び金属材料の潤滑皮膜形成方法 |
JP6920784B2 (ja) | 2015-05-29 | 2021-08-18 | 日本パーカライジング株式会社 | 含水潤滑膜剤、表面処理金属材料、及び、金属材料の含水潤滑膜形成方法 |
CN106334713A (zh) | 2016-09-26 | 2017-01-18 | 天津钢管集团股份有限公司 | 钛合金无缝管的热轧润滑工艺方法 |
CN107523386A (zh) | 2017-07-11 | 2017-12-29 | 青岛远大石墨有限公司 | 一种用于冷锻、冷挤压的润滑剂及制备方法及使用方法 |
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2019
- 2019-02-22 DE DE102019104540.1A patent/DE102019104540B4/de not_active Expired - Fee Related
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2020
- 2020-02-21 JP JP2021540272A patent/JP2022521134A/ja active Pending
- 2020-02-21 EP EP20706258.9A patent/EP3927797B1/de active Active
- 2020-02-21 CA CA3119484A patent/CA3119484C/en active Active
- 2020-02-21 CN CN202080015980.6A patent/CN113474442B/zh active Active
- 2020-02-21 US US17/310,710 patent/US11485929B2/en active Active
- 2020-02-21 WO PCT/EP2020/054621 patent/WO2020169800A1/de unknown
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- 2020-02-21 KR KR1020217020708A patent/KR20210127136A/ko unknown
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CA3119484A1 (en) | 2020-08-27 |
DE102019104540B4 (de) | 2021-08-19 |
BR112021009900A2 (pt) | 2021-09-08 |
US11485929B2 (en) | 2022-11-01 |
ZA202104194B (en) | 2022-10-26 |
KR20210127136A (ko) | 2021-10-21 |
CA3119484C (en) | 2023-09-19 |
SA521430126B1 (ar) | 2023-11-30 |
WO2020169800A1 (de) | 2020-08-27 |
CN113474442A (zh) | 2021-10-01 |
EA202192274A1 (ru) | 2022-01-14 |
EP3927797B1 (de) | 2022-12-28 |
CN113474442B (zh) | 2022-11-29 |
JP2022521134A (ja) | 2022-04-06 |
US20220162517A1 (en) | 2022-05-26 |
DE102019104540A1 (de) | 2020-08-27 |
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