EP0169413B1 - Composition de décapage - Google Patents

Composition de décapage Download PDF

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Publication number
EP0169413B1
EP0169413B1 EP85108235A EP85108235A EP0169413B1 EP 0169413 B1 EP0169413 B1 EP 0169413B1 EP 85108235 A EP85108235 A EP 85108235A EP 85108235 A EP85108235 A EP 85108235A EP 0169413 B1 EP0169413 B1 EP 0169413B1
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EP
European Patent Office
Prior art keywords
weight
pickling
sodium
antioxidant
lubrication
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.)
Expired - Lifetime
Application number
EP85108235A
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German (de)
English (en)
Other versions
EP0169413A3 (en
EP0169413A2 (fr
Inventor
Jacques Dr. Periard
Alain Dr. Cron
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lonza AG
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Lonza AG
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Publication of EP0169413A2 publication Critical patent/EP0169413A2/fr
Publication of EP0169413A3 publication Critical patent/EP0169413A3/de
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Publication of EP0169413B1 publication Critical patent/EP0169413B1/fr
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    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
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    • 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
    • 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
    • C10N2040/243—Cold working
    • 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
    • C10N2040/244—Metal working of specific metals
    • 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
    • C10N2040/244—Metal working of specific metals
    • C10N2040/245—Soft metals, e.g. aluminum
    • 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
    • C10N2040/244—Metal working of specific metals
    • C10N2040/246—Iron or steel
    • 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
    • C10N2040/244—Metal working of specific metals
    • C10N2040/247—Stainless steel

Definitions

  • the invention relates to a means for pickling, for lubrication and as an antioxidant for workpieces made of iron and steel in hot cutting without cutting.
  • the pickling can be done mechanically or with the aid of pickling baths, for example aqueous acid solutions, with salt baths made of sodium hydroxide, sodium hydride or metallic sodium. Solid mordants consisting of mixtures of sodium sulfate and phosphoric acid have also been used. Another suggestion was to remove the scale by applying molten mixtures of water glass and soda with borax or phosphates, which should break off the scale from the workpiece surface when it cools.
  • the pickling agent in the manufacture of seamless pipes on the aforementioned systems, the pickling agent must be brought into the cavity of the workpiece at the rolling temperature and distributed evenly within the work cycle and in periods down to 1 second, with the aim of achieving quick and safe pickling in order to then immediately to be able to roll out the workpiece.
  • compositions mentioned in DE 15 94 512 contain compounds of components a (borax) and b (phosphate) according to the invention, they have the task of acting exclusively as lubricants for the cold-forming of metals. Pickling, ie a chemical process, does not take place.
  • US Pat. No. 2,469,472 contains DE 15 94 512, a lubricant that contains phosphates and borates, but is only intended for the cold forming of metals.
  • DE 24 30 249 describes a high-temperature lubricant based on a phosphate-borate glass, i.e. from a melt product of phosphates and borates, a lubricant and a blowing agent. Only the use as a lubricant is described, and no melt products are used according to the invention. Neither is there any mention of a chemical conversion of the scale, ie of "pickling".
  • the US 4 088 585 is essentially similar to US 3 244 625 and describes an aqueous dispersion of a MoS2-containing lubricant for application to metal surfaces to reduce friction.
  • the US 4 402 838 describes a lubricant for forging metallic workpieces consisting of P2O5, B2O3 and an alkali oxide.
  • the object of the invention is to describe a pickling agent which can be used at temperatures of 1000 ° C to 1300 ° C and enables quick and reliable pickling.
  • the polymetaphosphates mentioned also include compounds known under the names Madrell's salt, Graham's salt and Kurrol's salt.
  • Synthetic resins based on hydrocarbons with 5 to 10 carbon atoms are understood to mean the so-called “hydrocarbon resins” and in particular the “petroleum resins” as defined in Kirk-Othmer, Encyclopedia of Chemical Technology, 3rd edition, Volume 12, pages 852-861.
  • the mordant is advantageously used in powder form, the powder having an average grain size of 50 to 1000 micrometers, or as granules with an average grain size of 0.5 to 4 mm. Depending on the starting materials, this is achieved by intensive grinding and / or mixing of the individual components.
  • the agent according to the invention is used for pickling, lubricating and as an antioxidant in the non-cutting hot forming of iron and steel.
  • the agent according to the invention is in dry powder or granulate form, for example on a sheet to be rolled sprayed on or sprayed into a pipe to be rolled, in each case in such a way that the entire surface which comes into contact with the tool, for example the rolls or the mandrel, is covered to form a uniform layer.
  • the workpieces move in the range of a treatment temperature of 1000 to 1300 ° C.
  • the shaping process is initiated; cooling in the meantime is neither provided nor necessary.
  • a mixture of 50 wt.% Na2B4O7. 10H2O and 15% by weight Na2B4O7 as pickling components, 30% by weight of a sodium stearate as a layering agent and antioxidant and 5% by weight of a highly crystalline, artificial graphite as a solid lubricant were mixed as a powder with a grain size of not more than 200 micrometers in a mixer to a homogeneous Mixture of a pickling agent worked up and applied in a plug rolling mill when processing a scale containing a lot of scale.
  • a mordant with emphasized lubricating properties was made from 70% by weight Na5P3O10 and 4% by weight graphite as a lubricating component and 26% by weight Na2B2O4.
  • 8H2O (sodium metaborate) as a active ingredient by homogeneous mixing the mixture obtained having an average grain size of 100 microns.
  • This finely divided powder was sprayed directly into a contour line before inserting the mandrel rod into the cavity of a blank, the pickling taking place at the rolling temperature and the proportions of Na5P3O10 and the graphite during the rolling ensuring the lubrication between the mandrel and the tube being formed.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Lubricants (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Anti-Oxidant Or Stabilizer Compositions (AREA)

Claims (6)

  1. Agent décapant, lubrifiant et antioxydant pour pièces à usiner en fer et en acier pour le formage à chaud à des températures comprises entre 1000 et 1300°C, contenant 20 à 65% en poids
    a) d'un ou plusieurs composés de la série des composés actifs pour un décapage
    Na₂B₄O₇.10H₂O;
    Na₂B₄O₇.5H₂O;
    Na₂B₄O₇ anhydre;
    métaborate de sodium, NaBO₂.4H₂O;
    silicate de sodium soluble avec un rapport SiO₂/Na₂O de 2,5 à 3,3, et
    5 à 75% en poids
    b) d'un ou plusieurs lubrifiants secs de la série du graphite,
    l'un des phosphates de la série du phosphate trisodique hydraté ou non hydraté;
    métaphosphates de sodium (NaPO₃)₃ et (NaPO₃)₄;
    polymétaphosphate (NaPO₃)₄.H₂O;
    polyphosphate de sodium Na₅P₃O₁₀, hydraté ou non hydraté;
    polyphosphate de sodium (Na₅P₃O₁₀)₂₋₈;
    et 5 à 75% en poids d'une ou plusieurs substances d'un ou plusieurs des groupes c), d) et e), qui consistent en 0 à 30% en poids
    c) d'un ou plusieurs additifs influençant la formation de couche dans la loupe et agissant comme antioxydant, de la série du coke, du charbon pulvérulent, de la sciure de bois, de l'amidon et de ses dérivés, des paraffines, des cires, des acides gras et/ou de leurs sels, de la colophane et de ses dérivés, des résines synthétiques à base d'hydrocarbures de 5 à 10 atomes de carbone, et de résines indène-coumarone; 0 à 30% en poids
    d) d'une ou plusieurs substances gouvernant les propriétés physiques de l'agent, de la série du chlorure de magnésium MgCl₂.6H₂O, du chlorure de sodium, du chlorure de calcium, du sulfate de sodium, de l'acétate de sodium et des argiles;
    0 à 3% en poids
    e) d'une ou plusieurs substances agissant sur la réduction des oxydes et à effet de séparation, de la série du chlorure d'ammonium NH₄Cl, de l'urée CO(NH₂)₂, du carbonate d'ammonium (NH₄)₂CO₃, des résines urée-formaldéhyde, du carbonate de sodium Na₂CO₃.
  2. Agent selon la revendication 1, contenant 20 à 50% en poids de a), 30 à 70% en poids de b) et 10 à 50% en poids d'une ou plusieurs substances d'un ou plusieurs des groupes c), d) et e), c) étant contenu en des quantités de 0 à 30% en poids, d) en des quantités de 0 à 30% en poids et e) en des quantités de 0 à 3% en poids.
  3. Agent selon les revendications 1 à 2 pour le décapage, la lubrification et comme antioxydant à des températures des pièces à usiner de 600 à 1300°C, de préférence de 1000 à 1300°C.
  4. Utilisation des agents selon les revendications 1 à 3 pour le décapage, la lubrification et comme antioxydants de pièces à usiner en fer et en acier dans le formage à chaud, de préférence pour le décapage, la lubrification et comme antioxydants de loupes en acier à la température de laminage.
  5. Utilisation des agents selon les revendications 1 à 4 pour le décapage, la lubrification et comme antioxydants de pièces à usiner en fer et en acier dans le formage à chaud, de préférence pour le décapage, la lubrification et comme antioxydants de loupes en acier à la température de laminage dans des laminoirs à mandrin (plug mills).
  6. Utilisation des agents selon les revendications 1 à 5 pour le décapage, la lubrification et comme antioxydants à des températures des pièces à usiner de 600 à 1300°C, de préférence de 1000 à 1300°C.
EP85108235A 1984-07-23 1985-07-03 Composition de décapage Expired - Lifetime EP0169413B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3570/84 1984-07-23
CH3570/84A CH670106A5 (fr) 1984-07-23 1984-07-23

Publications (3)

Publication Number Publication Date
EP0169413A2 EP0169413A2 (fr) 1986-01-29
EP0169413A3 EP0169413A3 (en) 1988-05-04
EP0169413B1 true EP0169413B1 (fr) 1991-04-17

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ID=4258842

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EP85108235A Expired - Lifetime EP0169413B1 (fr) 1984-07-23 1985-07-03 Composition de décapage

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Country Link
US (1) US4710307A (fr)
EP (1) EP0169413B1 (fr)
JP (1) JPH0784667B2 (fr)
BR (1) BR8503499A (fr)
CA (1) CA1239139A (fr)
CH (1) CH670106A5 (fr)
CS (1) CS540085A2 (fr)
DD (1) DD235676A5 (fr)
DE (1) DE3582525D1 (fr)
ES (1) ES8605592A1 (fr)
PL (1) PL145879B1 (fr)
ZA (1) ZA855467B (fr)

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CH674164A5 (fr) * 1987-09-29 1990-05-15 Lonza Ag
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JPH0813980B2 (ja) * 1988-06-14 1996-02-14 協同油脂株式会社 鋼の熱間圧延潤滑剤組成物
US5012662A (en) * 1989-02-07 1991-05-07 Henkel Corporation Water soluble salt precoats for wire drawing
JPH02229893A (ja) * 1989-02-07 1990-09-12 Nippon Parkerizing Co Ltd 線材被覆用組成物
JPH0350298A (ja) * 1989-06-16 1991-03-04 Castrol Ind Inc キャリアー―フリー鍛造用潤滑剤およびその使用方法
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JP3738660B2 (ja) * 2000-04-27 2006-01-25 住友金属工業株式会社 マルテンサイト系ステンレス継目無鋼管およびその製造方法
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ITPO20120002A1 (it) * 2012-02-09 2012-05-10 Emanuele Muto Formulato per il trattamento di degassificazione cinetica atomica di elementi nobili e preziosi
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CN103146944B (zh) * 2013-03-19 2015-04-15 新昌县国威铝制品辅助材料有限公司 一种铝或铝合金熔液清渣剂
CN105506654A (zh) * 2015-12-31 2016-04-20 安徽红桥金属制造有限公司 一种弹簧钢的除锈处理工艺
CN106435608A (zh) * 2016-08-17 2017-02-22 安徽红桥金属制造有限公司 一种高弹性弹簧钢表面的除锈处理工艺
DE102020107159A1 (de) 2020-03-16 2021-09-16 Chemische Fabrik Budenheim Kg Zusammensetzung für das Schmieren und/oder Entzundern bei der Heißverarbeitung von Metallen
KR20220151198A (ko) * 2020-03-16 2022-11-14 케미쉐 파브릭 부덴하임 카게 금속의 열간 가공 동안 윤활 및/또는 스케일 제거를 위한 조성물
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Also Published As

Publication number Publication date
ES8605592A1 (es) 1986-03-16
BR8503499A (pt) 1986-04-15
CA1239139A (fr) 1988-07-12
US4710307A (en) 1987-12-01
JPH0784667B2 (ja) 1995-09-13
EP0169413A3 (en) 1988-05-04
DE3582525D1 (de) 1991-05-23
ZA855467B (en) 1986-03-26
PL254622A1 (en) 1986-08-12
ES545446A0 (es) 1986-03-16
CS540085A2 (en) 1991-08-13
CH670106A5 (fr) 1989-05-12
DD235676A5 (de) 1986-05-14
JPS6137989A (ja) 1986-02-22
PL145879B1 (en) 1988-11-30
EP0169413A2 (fr) 1986-01-29

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