EP0971047B1 - Boriermittel - Google Patents
Boriermittel Download PDFInfo
- Publication number
- EP0971047B1 EP0971047B1 EP99111057A EP99111057A EP0971047B1 EP 0971047 B1 EP0971047 B1 EP 0971047B1 EP 99111057 A EP99111057 A EP 99111057A EP 99111057 A EP99111057 A EP 99111057A EP 0971047 B1 EP0971047 B1 EP 0971047B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- weight
- boriding
- boron
- boriding agent
- agent according
- 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
Links
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 44
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims abstract description 16
- -1 potassium fluoroborate Chemical compound 0.000 claims abstract description 15
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 15
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims abstract description 14
- 229910001634 calcium fluoride Inorganic materials 0.000 claims abstract description 13
- INAHAJYZKVIDIZ-UHFFFAOYSA-N boron carbide Chemical compound B12B3B4C32B41 INAHAJYZKVIDIZ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052580 B4C Inorganic materials 0.000 claims abstract description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 30
- 239000000126 substance Substances 0.000 claims description 24
- 239000000843 powder Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 11
- 230000003213 activating effect Effects 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 10
- 229910052742 iron Inorganic materials 0.000 claims description 9
- 239000008187 granular material Substances 0.000 claims description 7
- 239000000945 filler Substances 0.000 claims 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 claims 1
- 239000011591 potassium Substances 0.000 claims 1
- 229910052700 potassium Inorganic materials 0.000 claims 1
- 229910052796 boron Inorganic materials 0.000 abstract description 7
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 abstract description 6
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract description 5
- 239000012190 activator Substances 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 229910052751 metal Inorganic materials 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 4
- 239000003085 diluting agent Substances 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 21
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 7
- 239000011737 fluorine Substances 0.000 description 7
- 229910052731 fluorine Inorganic materials 0.000 description 7
- 229910004261 CaF 2 Inorganic materials 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 239000004606 Fillers/Extenders Substances 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 3
- 239000011230 binding agent Substances 0.000 description 3
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 3
- 239000004327 boric acid Substances 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000002585 base Substances 0.000 description 2
- 229910021538 borax Inorganic materials 0.000 description 2
- 150000003841 chloride salts Chemical class 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000009792 diffusion process Methods 0.000 description 2
- 150000002222 fluorine compounds Chemical class 0.000 description 2
- 239000003701 inert diluent Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000004328 sodium tetraborate Substances 0.000 description 2
- 235000010339 sodium tetraborate Nutrition 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003746 solid phase reaction Methods 0.000 description 2
- 238000010671 solid-state reaction Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 230000004913 activation Effects 0.000 description 1
- 230000001464 adherent effect Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005885 boration reaction Methods 0.000 description 1
- ZDVYABSQRRRIOJ-UHFFFAOYSA-N boron;iron Chemical compound [Fe]#B ZDVYABSQRRRIOJ-UHFFFAOYSA-N 0.000 description 1
- 238000005271 boronizing Methods 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 238000005255 carburizing Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 125000001153 fluoro group Chemical group F* 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000005121 nitriding Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 239000002351 wastewater Substances 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
- 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
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/60—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using solids, e.g. powders, pastes
- C23C8/62—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using solids, e.g. powders, pastes only one element being applied
- C23C8/68—Boronising
- C23C8/70—Boronising of ferrous surfaces
Definitions
- the invention relates to a Borierstoff for the production of Boride coatings on metallic materials. This serves in particular for the production of single-phase, hard and adherent Borid füren on iron materials to increase wear resistance and improve the Corrosion resistance of corresponding workpieces.
- Boring for wear protection of iron, steel and refractory metals is a well-known process.
- dense, uniform layers of the respective boride for example the borides FeB, Fe 2 B are formed on iron.
- the borides have considerably changed properties compared to the pure metals Most Boride very hard, corrosion resistant and therefore extremely wear-resistant. Due to their generation by diffusion and solid state reaction, the boride layers are firmly bonded to the base material.
- boron-treated steels are sometimes superior to steels treated by nitriding or carburizing.
- Bie boration is usually used at temperatures between 800 and 1100 ° C and in particular between 850 and 950 ° C. carried out.
- the achievable layer thicknesses of Boride layers are in the range between 30 and 300 microns.
- Suitable activating substances are chlorides or Fluoride-donating compounds such as alkali and Alkaline earth chlorides or fluorides. Especially common as activators are fluoroborates such as in particular Potassium tetrafluoroborate.
- Typical extenders are Alumina, silica and silicon carbide. Boriering agents of this type are for example in DE-PS 17 96 216 described. A typical composition which has proven itself to date as Borierstoff contains about 5 wt.% Boron carbide, 5 wt.% Potassium tetrafluoroborate and 90% by weight silicon carbide.
- Borierstoff of the type mentioned are usually used as powder mixtures. she but also as granules (for example DE-OS 21 27 096) or be formulated as pastes (e.g., DE-OS 26 33 137). In the event of granules and pastes contain the compositions still minor amounts of binders or water.
- the boron-rich FeB phase is much more brittle than the Fe 2 B phase, which has a negative effect on the wear resistance of the borated components.
- boride layers of more than 50 ⁇ m it is also very easy to form a FeB boundary layer, which should be avoided as far as possible for the stated reason.
- the invention therefore an object of the invention to develop a Borierstoff, with the use of ferrous materials virtually exclusively single-phase, Fe 2 Benthaltende Borid harshen can be generated. Furthermore, the content of water-soluble fluorides should be lowered in this Borierstoff and associated with normal use, a reduced fluorine emission.
- the invention relates to a boriding agent as characterized above for producing boride layers on metallic workpieces, in particular for producing single-phase, Fe 2 B-containing boride layers on workpieces made of iron materials.
- the boriding agent according to the invention contains as activating substance a combination of 1 to 5% by weight of potassium tetrafluoroborate (KBF 4 ) and 10 to 40% by weight of calcium fluoride (CaF 2 ), the quantities referring to the total amount of boriding agent.
- the boriding agent according to the invention preferably comprises as activator substance a combination of 2 to 4% by weight, in particular about 2.5% by weight, of potassium tetrafluoroborate and 10 to 30% by weight, in particular about 25% by weight, of calcium fluoride.
- the boriding agent according to the invention may contain the customary boron-emitting substances, such as amorphous or crystalline ferroboron and in particular boron carbide (B 4 C). Preferably, it contains from 2 to 10% by weight of boron carbide.
- the boriding agent according to the invention contains the usual extenders in the remainder, in particular silicon carbide (SiC).
- the boriding agent according to the invention preferably contains boron-emitting substance 2 to 10 wt.% Boron carbide, as activating substance 1 to 5 wt.% Potassium tetrafluoroborate and 10 to 40% by weight of calcium fluoride and as extender in the balance of silicon carbide.
- a particularly preferred composition consists of 3 to 5 wt.% Boron carbide, 2 to 4 wt.% Potassium tetrafluoroborate, 10 to 30 wt.% Calcium fluoride and 61 to 85 Wt.% Silicon carbide.
- a typical composition consists of 4% by weight B 4 C, 2.5% by weight KBF 4 , 25% by weight CaF 2 and 68.5% by weight SiC.
- the boriding agent according to the invention typically comes in the form of a powder mixture for use.
- a powder mixture for use of such a powder mixture are only the powdered starting materials, if necessary after Milling, intimately mixed.
- the particle size of such Powder mixtures are typically in the range 10 to 250 microns.
- the inventive Borierstoff formulate in the form of granules.
- the corresponding powder mixture for example pasted with water and optionally a binder and then made a granulate in a known manner become.
- the particle size is typical in the range 0.1 to 2.5 mm.
- the boring agent as To formulate paste. This can be done by adding Water and possibly minor amounts of Auxiliaries, such as Binder, from the corresponding Powder mixture are produced.
- the boriding agent according to the invention can be used very advantageously for the production of boride layers on metallic workpieces.
- a reduced KBF 4 content is furthermore advantageous in the intended use of the composition since correspondingly lower fluorine gas emissions occur.
- a particular advantage of the boriding agent according to the invention is that it is possible to easily produce single-phase, Fe 2 B-containing boride layers on workpieces made of iron materials.
- the surface of the workpieces is covered with the boriding agent and then treated at temperatures between 800 and 1100 ° C until a boride layer of the desired thickness has formed ,
- packing the parts in a known manner in closed iron boxes in a powder mixture or granules of boriding agent according to the invention, so that the surfaces of the parts are completely covered.
- the surface of the parts can also be painted with a boriding agent paste. This is advantageous when a partially borated surface is desired.
- the boriding is preferably carried out at temperatures between 850 and 950 ° C over a period of 20 minutes to 2 hours.
- single-phase Fe 2 B layers of a thickness of 30 to 150 ⁇ m can be obtained.
- a 42CrMo4 component was borated at 920 ° C for 30 minutes in a prior art boriding agent of the following composition: 4% by weight B 4 C 5% by weight KBF 4 91% by weight SiC.
- the component was moderately easy to remove from the boriding agent, the Borierstoff difficult to grind between the fingers to powder.
- the boride layer had a layer thickness of 45-50 ⁇ m, with FeB tips up to 16 ⁇ m deep. Fluorine gas emissions of about 4 g / kg boric acid were measured.
- a component of 42CrMo4 was borated at 920 ° C. for 30 minutes in a boriding agent according to the invention having the following composition: 4% by weight B 4 C 5% by weight KBF 4 10% by weight CaF 2 81% by weight SiC.
- the component was moderately easy to remove from the boriding agent, the boriding agent moderately easy to grind between the fingers to powder.
- the boride layer had a thickness of about 50 microns and was completely FeB-free.
- the layer structure was significantly more uniform than in the layer from Example 1. Fluoro gas emissions of about 4 g / kg boric acid were measured.
- a component of 42CrMo4 was borated at 920 ° C. for 30 minutes in a boriding agent according to the invention having the following composition: 4% by weight B 4 C 2% by weight KBF 4 30% by weight CaF 2 64% by weight SiC.
- the component was easily removed from the boriding agent Remove the boric acid slightly between your fingers Grate powder.
- the boride layer had a thickness of 50-55 ⁇ m, was completely FeB-free and had a very good uniform, compact construction.
- the fluorine emissions amounted to only 2 g / kg Borierstoff.
- a 42CrMo4 component was borated at 920 ° C. for 30 minutes in a boring agent having the following composition: 4% by weight B 4 C 2% by weight KBF 4 94% by weight SiC.
- the component was moderately easy to remove from the boriding agent, the Borierstoff quite easily grind between the fingers to powder.
- the boride layer had a thickness of 40-50 ⁇ m.
- a component of 42CroMo4 was borated for 30 minutes at 920 ° C. in a mixture of the following composition: 10% by weight B 4 C 30% by weight CaF 2 60% by weight SiC.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Powder Metallurgy (AREA)
- Coating By Spraying Or Casting (AREA)
- Ceramic Products (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
- Laminated Bodies (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
- Chemically Coating (AREA)
- Fireproofing Substances (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19830654A DE19830654C2 (de) | 1998-07-09 | 1998-07-09 | Boriermittel, seine Verwendung und Verfahren zur Erzeugung einphasiger, Fe¶2¶B-haltiger Boridschichten |
| DE19830654 | 1998-07-09 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0971047A1 EP0971047A1 (de) | 2000-01-12 |
| EP0971047B1 true EP0971047B1 (de) | 2003-01-08 |
Family
ID=7873432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP99111057A Expired - Lifetime EP0971047B1 (de) | 1998-07-09 | 1999-06-15 | Boriermittel |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US6245162B1 (cs) |
| EP (1) | EP0971047B1 (cs) |
| JP (1) | JP4209043B2 (cs) |
| AT (1) | ATE230809T1 (cs) |
| CA (1) | CA2277006A1 (cs) |
| CZ (1) | CZ295205B6 (cs) |
| DE (2) | DE19830654C2 (cs) |
| ES (1) | ES2189316T3 (cs) |
| TR (1) | TR199901596A3 (cs) |
| ZA (1) | ZA994445B (cs) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2026037717A1 (de) * | 2024-08-16 | 2026-02-19 | Thyssenkrupp Steel Europe Ag | Verfahren zum herstellen eines mit einem korrosionsschutzüberzug auf zn-basis versehenen stahlflachprodukts und stahlflachprodukt |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10163107C1 (de) * | 2001-12-24 | 2003-07-10 | Univ Hannover | Magnesium-Werkstück und Verfahren zur Ausbildung einer korrosionsschützenden Deckschicht eines Magnesium-Werkstücks |
| JP2005526905A (ja) * | 2002-03-01 | 2005-09-08 | スティヒティング フォール デ テヒニーセ ウェーテンスハッペン | 鉄ベース基材上にダイヤモンド被膜を形成する方法およびｃｖｄダイヤモンド被膜を施すためのかかる鉄ベース基材の使用。 |
| EP1587676A4 (en) * | 2002-11-15 | 2010-07-21 | Univ Utah Res Found | TITANIUM BORIDE INTEGRAL COATINGS ON TITANIUM SURFACES AND CORRESPONDING METHODS |
| CN1293227C (zh) * | 2004-10-29 | 2007-01-03 | 武汉理工大学 | 金属表面渗硼层的快速制备方法 |
| US7459105B2 (en) * | 2005-05-10 | 2008-12-02 | University Of Utah Research Foundation | Nanostructured titanium monoboride monolithic material and associated methods |
| CA2623650A1 (en) * | 2005-09-22 | 2007-04-05 | Skaffco Engineering & Manufacturing, Inc. | Plasma boriding method |
| MX2008013386A (es) * | 2006-04-20 | 2009-01-26 | Skaff Corp Of America Inc | Partes mecanicas que tienen resistencia incrementada contra el desgaste. |
| US8012274B2 (en) * | 2007-03-22 | 2011-09-06 | Skaff Corporation Of America, Inc. | Mechanical parts having increased wear-resistance |
| US20100176339A1 (en) * | 2009-01-12 | 2010-07-15 | Chandran K S Ravi | Jewelry having titanium boride compounds and methods of making the same |
| US9068260B2 (en) | 2012-03-14 | 2015-06-30 | Andritz Iggesund Tools Inc. | Knife for wood processing and methods for plating and surface treating a knife for wood processing |
| CN103938150B (zh) * | 2014-04-01 | 2016-02-17 | 山东建筑大学 | 一种低温固体渗硼活化剂 |
| US20170320171A1 (en) * | 2016-05-06 | 2017-11-09 | Siemens Energy, Inc. | Palliative superalloy welding process |
| US11192792B2 (en) | 2017-03-14 | 2021-12-07 | Bwt Llc | Boronizing powder compositions for improved boride layer quality in oil country tubular goods and other metal articles |
| US10870912B2 (en) | 2017-03-14 | 2020-12-22 | Bwt Llc | Method for using boronizing reaction gases as a protective atmosphere during boronizing, and reaction gas neutralizing treatment |
| DE102019202477A1 (de) * | 2019-02-25 | 2020-08-27 | Robert Bosch Gmbh | Reibbremskörper für eine Reibbremse eines Kraftfahrzeugs, Verfahren zum Herstellen eines Reibbremskörpers |
| CN114703447A (zh) * | 2022-04-01 | 2022-07-05 | 江苏科技大学 | 一种具有单相Fe2B组织的渗硼剂及其制备方法与应用 |
| CN115571891B (zh) * | 2022-09-28 | 2023-12-05 | 中国科学院南京土壤研究所 | 一种S掺杂Fe2B复合材料的制备方法及应用 |
| US12584529B2 (en) * | 2023-06-28 | 2026-03-24 | GM Global Technology Operations LLC | Boronized brake disc rotor |
Family Cites Families (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1796212B1 (de) * | 1968-09-21 | 1972-05-31 | Inst Haerterei Technik | Verfahren zum borieren von titan und seinen legierungen |
| US3634145A (en) * | 1968-12-09 | 1972-01-11 | Triangle Ind Inc | Case-hardened metals |
| DE2126379C3 (de) * | 1971-05-27 | 1979-09-06 | Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt | Verfahren zum Borieren von Metallen, insbesondere von Stahl |
| DE2127096C3 (de) * | 1971-06-01 | 1980-11-06 | Deutsche Gold- Und Silber-Scheideanstalt Vormals Roessler, 6000 Frankfurt | Verfahren zum Borieren von Metallen, insbesondere von Stahl und Eisen |
| DE2146472C3 (de) * | 1971-09-16 | 1979-01-11 | Elektroschmelzwerk Kempten Gmbh, 8000 Muenchen | Pulverförmiges Borierungsmittel |
| DE2208734C3 (de) * | 1972-02-24 | 1980-07-31 | Elektroschmelzwerk Kempten Gmbh, 8000 Muenchen | Pulverförmiges Borierungsmittel |
| BE789036A (fr) * | 1971-09-24 | 1973-03-20 | Kempten Elektroschmelz Gmbh | Agent de boruration |
| US3936327A (en) * | 1972-09-07 | 1976-02-03 | Elektroschmelzwerk Kempten Gmbh | Boriding composition |
| GB1436945A (en) * | 1973-01-08 | 1976-05-26 | Borax Cons Ltd | Boriding compositions |
| PL90793B1 (cs) * | 1974-06-19 | 1977-01-31 | ||
| DE2633137C2 (de) * | 1976-07-23 | 1983-12-01 | Degussa Ag, 6000 Frankfurt | Borierungsmittel zum Borieren von Massenteilen aus Eisen und Nichteisenmetallen |
| SU834241A1 (ru) * | 1979-11-13 | 1981-05-30 | Белорусский Ордена Трудового Красногознамени Политехнический Институт | Смесь дл борировани стальных изделий |
| DE3431044A1 (de) * | 1984-08-23 | 1986-03-06 | Elektroschmelzwerk Kempten GmbH, 8000 München | Verfahren zum borieren von metall und metall-legierungen mittels fester boriermittel |
| CN1003944B (zh) * | 1986-11-05 | 1989-04-19 | 山东省新材料研究所 | 渗硼用胶膜 |
-
1998
- 1998-07-09 DE DE19830654A patent/DE19830654C2/de not_active Expired - Lifetime
-
1999
- 1999-06-15 ES ES99111057T patent/ES2189316T3/es not_active Expired - Lifetime
- 1999-06-15 AT AT99111057T patent/ATE230809T1/de active
- 1999-06-15 EP EP99111057A patent/EP0971047B1/de not_active Expired - Lifetime
- 1999-06-15 DE DE59903955T patent/DE59903955D1/de not_active Expired - Lifetime
- 1999-07-08 CA CA002277006A patent/CA2277006A1/en not_active Abandoned
- 1999-07-08 TR TR1999/01596A patent/TR199901596A3/tr unknown
- 1999-07-08 CZ CZ19992439A patent/CZ295205B6/cs unknown
- 1999-07-08 US US09/349,722 patent/US6245162B1/en not_active Expired - Lifetime
- 1999-07-08 ZA ZA9904445A patent/ZA994445B/xx unknown
- 1999-07-09 JP JP19635399A patent/JP4209043B2/ja not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2026037717A1 (de) * | 2024-08-16 | 2026-02-19 | Thyssenkrupp Steel Europe Ag | Verfahren zum herstellen eines mit einem korrosionsschutzüberzug auf zn-basis versehenen stahlflachprodukts und stahlflachprodukt |
Also Published As
| Publication number | Publication date |
|---|---|
| DE19830654A1 (de) | 2000-01-13 |
| CZ243999A3 (cs) | 2000-03-15 |
| DE59903955D1 (de) | 2003-02-13 |
| ZA994445B (en) | 2000-01-13 |
| TR199901596A2 (xx) | 2000-02-21 |
| JP2000038651A (ja) | 2000-02-08 |
| ATE230809T1 (de) | 2003-01-15 |
| US6245162B1 (en) | 2001-06-12 |
| EP0971047A1 (de) | 2000-01-12 |
| TR199901596A3 (tr) | 2000-02-21 |
| ES2189316T3 (es) | 2003-07-01 |
| CZ295205B6 (cs) | 2005-06-15 |
| JP4209043B2 (ja) | 2009-01-14 |
| CA2277006A1 (en) | 2000-01-09 |
| DE19830654C2 (de) | 2002-06-27 |
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