DE866296C - Process for the treatment of metal surfaces - Google Patents
Process for the treatment of metal surfacesInfo
- Publication number
- DE866296C DE866296C DEN4000A DEN0004000A DE866296C DE 866296 C DE866296 C DE 866296C DE N4000 A DEN4000 A DE N4000A DE N0004000 A DEN0004000 A DE N0004000A DE 866296 C DE866296 C DE 866296C
- Authority
- DE
- Germany
- Prior art keywords
- treatment
- metal surfaces
- diffusion
- addition
- procedure
- 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
Links
- 238000000034 method Methods 0.000 title claims description 9
- 239000002184 metal Substances 0.000 title claims description 6
- 229910052751 metal Inorganic materials 0.000 title claims description 6
- 230000008569 process Effects 0.000 title description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 12
- 238000009792 diffusion process Methods 0.000 claims description 11
- 239000007789 gas Substances 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 229910052736 halogen Inorganic materials 0.000 claims description 5
- 150000002367 halogens Chemical class 0.000 claims description 5
- 238000006243 chemical reaction Methods 0.000 claims description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 239000007795 chemical reaction product Substances 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 150000002737 metalloid compounds Chemical class 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 claims 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 4
- 239000010953 base metal Substances 0.000 description 3
- -1 iron and steel Chemical class 0.000 description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 2
- 229910052796 boron Inorganic materials 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 229910052752 metalloid Inorganic materials 0.000 description 2
- 150000002738 metalloids Chemical class 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 1
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
- 101000825071 Homo sapiens Sclerostin domain-containing protein 1 Proteins 0.000 description 1
- 241000530268 Lycaena heteronea Species 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 102100022432 Sclerostin domain-containing protein 1 Human genes 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910052787 antimony Inorganic materials 0.000 description 1
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 150000001722 carbon compounds Chemical class 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000460 chlorine Substances 0.000 description 1
- 229910052801 chlorine Inorganic materials 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 150000002366 halogen compounds Chemical class 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- 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
- C23C8/06—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 gases
-
- 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
- C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
- C23C10/02—Pretreatment of the material to be coated
-
- 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
- C23C8/02—Pretreatment of the material to be coated
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Treating Waste Gases (AREA)
Description
Verfahren zur Behandlung von Metalloberflächen Die Erfindung betrifft in Verfahren zur Oberflächenbehandlung von. Metallen einschließlich Eisen und Stahl, durch das Metalloide, wie Kohlenstoff, Bor, Stickstoff u. dgl., aus der Gasphase in die Oberfläche diffundiert werden.METHOD OF TREATMENT OF METAL SURFACES The invention relates to in processes for the surface treatment of. Metals including iron and steel, through the metalloid, such as carbon, boron, nitrogen and the like, from the gas phase diffused into the surface.
Es wurde festgestellt, d'aß diese Stoffe nicht nur schneller und gleichmäßiger in das Grundmetall diffundieren, sondern auch in innigerer Verbindung mit dem Kern .der Werkstücke stehen, wenn man den flüchtigen Verbindungen d!er Metaliloide Halogene zusetzt. Durch dliesen Halogenzusatz wird die Geschwindigkeit der chemischen Platzwechselreaktion gesteigert.It was found that these substances were not only faster and more even diffuse into the base metal, but also in more intimate connection with the core .of the workpieces stand when you consider the volatile compounds of the metaliloids halogens clogs. This addition of halogen increases the speed of the chemical relocation reaction increased.
Läßt man beispielsweise kohltenstoffhaltige Gase, wie Tetrachlorkohlenstoff, bei entsprechender Temperatur auf eine Eisienoberfläch!e einwirken, so erfolgteine Diffusion des Kohlenstoffes in das Eisen. Die dabei vor sich gehende Platzwechselreaktion verläuft langsam, und infolgedessen bleibt die Diffusionsgeschwindigkeit äußerst klein.For example, if gases containing carbon, such as carbon tetrachloride, act on an iron surface at the appropriate temperature, this takes place Diffusion of the carbon into the iron. The change of place reaction that takes place is slow and, as a result, the rate of diffusion remains extremely high small.
Setzt man jedoch erfindungsgemäß dem Tetrachlorkohlenatöff eine gewisse Menge Chlorgas zu, so wird eine weitgehende Geschwindigkeitssteigerung des Diffusionsvorganges erreicht. Entsprechend dem chemischen Massenwirkungsgesetz ist hierbei die Dosierung des Chlorzusatzes von ausschlaggebender Bedeutung.If, however, according to the invention, a certain amount of carbon tetrachloride is used If the amount of chlorine gas is added, the speed of the diffusion process will be increased to a large extent achieved. The dosage is in accordance with the chemical law of mass action the addition of chlorine is of decisive importance.
Der an Hand des Beispiels der Diffusion einer flüchtigen Kohlen:stoffverbindung in Eisen a15 Grundmetall beschriebene Vorgang ist allgemeiner Anwendung fähig. Es können. in der beschriebenen Weise außer Kohlenstoff auch andere Metal'loide, wie Stickstoff, Phosphor, Schwefel, Bor, Arsen, Antimon u. dgl., außer in Eisen auch in andere Metalle, wie z. B. Kupfer, Zinn usw., eindiffundiert werden, wenn"dabei von Verbindungen ausgegangen wird, die bei Diffusionstemperatur eine Gasphase bilden, und durch entsprechenden Zusatz von Halogenen dafür Sorge getragen wird, daß die mit dem Grund metall sich bildende- Halogenverbindung durch dauernde Beeinflussung ödes chemischen Gleichgewichts die Reaktion immer im für die Diffusion dies Metalleids in: :das Grundrnetäll günstigen Sinne verlaufen läßt.Using the example of the diffusion of a volatile carbon compound The process described in iron a15 base metal is capable of general application. It can. in the manner described, in addition to carbon, other metalloids, how Nitrogen, phosphorus, sulfur, boron, arsenic, antimony and the like, except in iron too into other metals, such as B. copper, tin, etc., are diffused when "doing compounds are assumed which form a gas phase at diffusion temperature, and through the appropriate addition of halogens, care is taken that the with the base metal forming halogen compound through permanent influence chemical equilibrium, the reaction always takes place for the diffusion of this metal oxide in:: allows the basic principle to run in a favorable sense.
Eine durch Oxydation: undansch°ließende Reduktion oder eine auf andere Weise aktivierte Oberfläche isst dabei von wesentlicher Bedeutung. Insbesondere wird bei Anwendung einer aktivierten Oberfläche die Geschwindigkeit der Diffusion erhöht und idie Gleichmäßigkeit der Diffusionsschicht verbessert.A reduction resulting from oxidation, or one to others Wise activated surface eats thereby essential. In particular If an activated surface is applied, the rate of diffusion is determined increases and i improves the uniformity of the diffusion layer.
In technischer IHrinsicht bietet das Verfahren den Vortel"daß die Behandlung der Werkstücke infolge Erhöhung der Diffusionsgeschwindigkeit im Durchlaufverfahren erfolgen kann. Dabei können die Gase im Kreislauf und auch unter ständiger Regenerierung bei Abscheidung der Reaktionsproidukte geführt werden. Hierbei können die Gase je nach Zweckmäßigkeit im Gleich- oder Gegenstrom oder teils im Gleich-und teils im Gegenstrom zu idem zu behandelnden Gut durch dien Behandlungsraum strömen.From a technical point of view, the method offers the advantage "that the Treatment of the workpieces as a result of increasing the diffusion speed in a continuous process can be done. The gases can circulate and also with constant regeneration be performed when the reaction products are deposited. Here the gases can depending according to expediency in cocurrent or countercurrent or partly in parallel and partly in Flow countercurrent to the item to be treated through the treatment room.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEN4000A DE866296C (en) | 1951-06-08 | 1951-06-08 | Process for the treatment of metal surfaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEN4000A DE866296C (en) | 1951-06-08 | 1951-06-08 | Process for the treatment of metal surfaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE866296C true DE866296C (en) | 1953-02-09 |
Family
ID=7338196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEN4000A Expired DE866296C (en) | 1951-06-08 | 1951-06-08 | Process for the treatment of metal surfaces |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE866296C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19539305A1 (en) * | 1995-10-23 | 1997-04-24 | Dechema | Titanium@-aluminium@ alloy parts with improved high temperature corrosion resistance |
-
1951
- 1951-06-08 DE DEN4000A patent/DE866296C/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19539305A1 (en) * | 1995-10-23 | 1997-04-24 | Dechema | Titanium@-aluminium@ alloy parts with improved high temperature corrosion resistance |
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