DE895685C - Metal cleaning bath - Google Patents
Metal cleaning bathInfo
- Publication number
- DE895685C DE895685C DEM10618A DEM0010618A DE895685C DE 895685 C DE895685 C DE 895685C DE M10618 A DEM10618 A DE M10618A DE M0010618 A DEM0010618 A DE M0010618A DE 895685 C DE895685 C DE 895685C
- Authority
- DE
- Germany
- Prior art keywords
- bath
- metal cleaning
- electrolyte
- cleaning
- soda
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F1/00—Electrolytic cleaning, degreasing, pickling or descaling
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Description
Metallreinigungsbad Die bekannten verschiedenartigen Metallreinigungsbäder arbeiten ohne elektrischen Strom, also rein chemisch.Metal cleaning bath The well-known various types of metal cleaning baths work without electricity, i.e. purely chemically.
Das neue und erfinderische Merkmal des Metallreini,gungsbades gemäß der Erfindung besteht darin, daß eine Lösung von Schuppennatron und Zyannatrium in Wasser in einer elektrogalvanischen Anlage verwendet wird und,der zu reinigende Teil die Kathode, die Behälterwand, z. B. aus Eisen, die Anode bilden.The new and inventive feature of the metal cleaning bath according to of the invention is that a solution of flaked soda and sodium cyanide in water in an electroplating system and the one to be cleaned Part of the cathode, the container wall, e.g. B. made of iron, forming the anode.
Ein besonders vorteilhaftes Bad wird dadurch erzielt, daß auf i 1 Wasser 350 g Mischung gegeben wird, die sich aus 81,428% Schuppennatron und 18,572% Zyannatrium zusammensetzt.A particularly advantageous bath is achieved by adding 350 g of mixture to i 1 of water, which is composed of 81.428% flaxed soda and 18.572% sodium cyanide.
Da beim Metallreinigen .die beiden genannten Stoffe in verschiedenem Grade verbraucht werden, so ist erfindungsgemäß eine RegenerierungsmIschung anzuwenden, die diese Verschiebung des Mischungsverhältnisses wieder ausgleicht.Since when cleaning metal, the two substances mentioned in different Degrees are consumed, a regeneration mixture is to be used according to the invention, which compensates for this shift in the mixing ratio.
Die Mischung, die diesen Erfolg hat, setzt sich zusammen aus 76,92q.°/0 Zyannatrium und 23,o76% Schuppennatron.The mixture that has this success is composed of 76.92q. ° / 0 Sodium cyanide and 23.076% flake sodium.
Das Bad wird in einfacher Weise .dadurch erzielt, daß Schuppennatron und Zyannatrium in dem richtigen Verhältnis und in der richtigen. Menge in .dem z. B. mit Leitungswasser gefüllten Reinigungsbehälter allmählich aufgelöst werden. Die beiden Stoffe können aber auch ohne Schaden., d. h. ohne daß sie sich einzeln chemisch verändern oder eine Verbindung eingehen; bereits schon lange vor der Verwendung gemischt und so angeliefert werden.The bath is achieved in a simple way, that flaxed soda and sodium cyanide in the right proportion and in the right one. Amount in .dem z. B. with tap water filled cleaning container are gradually dissolved. However, the two substances can also be used without damage. H. without them being individually chemically alter or form a bond; long before it was used mixed and delivered in this way.
Bei ihrem Auflösen im Wasser entsteht Wärme und dadurch Temperaturerhöhungen bis auf etwa 6o°'. Nach Abkühlung des Bades wird der oder die zu reinigenden Teile wie beim Galvanisierungsverfahren in das Bad eingebracht, d. h. gegen die Gefäßwand isoliert an .den elektrischen Stromkreis, aber entgegen dem Galvanisierungsverfahren, als Kathode und die Gefäßwand als Anode angeschlossen. Die zu verwendende Spannung beträgt 6 bis 8 Volt und die zu verwendende Stromstärke 5ioio bis 6ooo Amp. Für i qm zu entrostende Fläche sind etwa 3oo Amp. notwendig. Es muß darauf geachtet werden, daß die Arbeitstemperatur möglichst 35'1' nicht überschreitet.When they dissolve in water, heat is generated and, as a result, temperature increases except for about 6o ° '. After the bath has cooled down, he or she turns to cleaning parts brought into the bath as in the galvanizing process, d. H. insulated against the vessel wall at .the electrical circuit, but against the Electroplating process, connected as a cathode and the vessel wall as an anode. The voltage to use is 6 to 8 volts and the amperage to use 5ioio to 6,000 amps. For 1 square meter area to be derusted, around 300 amps are necessary. Care must be taken that the working temperature does not exceed 35'1 'if possible.
Das Bad gemäß der 'Erfindung eignet sich für die Reinigung von Eisen:, Kupfer, Messing, die nicht von ihm angegriffen, werden. Es ist dagegen nicht zu gebrauchen für Zink, Zinn, Aluminium und andere Leichtmetalle. Es kann verwendet werden zur Entrostung, 'E'ntchromung, Entrückelung usw., ja sogar zur Entemaillierung. Es ist so.-gar imstande, was es besonders wertvoll macht, die Ablagerungen des Koksgases zu entfernen.The bath according to the 'invention is suitable for cleaning iron :, Copper, brass, which are not attacked by it. It is not against it Use for zinc, tin, aluminum and other light metals. It can be used are used for derusting, 'e'chroming, deleveraging, etc., even de-enamelling. It is so - even capable of what makes it particularly valuable, the deposits of the coke gas to remove.
Die Vorteile der Erfindung sind folgende: Das Metallreinigungsbad arbeitet außerordentlich wirtschaftlich, da die verwandten. Stoffe verhältnismäßig billig sind und das Bad immer wieder mit geringem Aufwand vollwertig durch die erfindungsgemäße Regeneriermischung regeneriert werden kann. Es ermöglicht .auch Reinigungen, die bisher nur unter großer Mühe und mit großem Kostenaufwand mechanisch erzielt -werden können.The advantages of the invention are as follows: The metal cleaning bath works extremely economically as the relatives. Substances proportionately are cheap and the bathroom is always full-fledged with little effort by the inventive Regeneration mixture can be regenerated. It also enables cleaning that so far only achieved mechanically with great effort and at great expense can.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEM10618A DE895685C (en) | 1951-08-10 | 1951-08-11 | Metal cleaning bath |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1061213X | 1951-08-10 | ||
| DEM10618A DE895685C (en) | 1951-08-10 | 1951-08-11 | Metal cleaning bath |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE895685C true DE895685C (en) | 1953-11-05 |
Family
ID=25986579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEM10618A Expired DE895685C (en) | 1951-08-10 | 1951-08-11 | Metal cleaning bath |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE895685C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1116013B (en) * | 1955-12-09 | 1961-10-26 | Enthone | Electrolyte for the cathodic removal of foreign matter from ferrous metals |
-
1951
- 1951-08-11 DE DEM10618A patent/DE895685C/en not_active Expired
Non-Patent Citations (1)
| Title |
|---|
| None * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1116013B (en) * | 1955-12-09 | 1961-10-26 | Enthone | Electrolyte for the cathodic removal of foreign matter from ferrous metals |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE1281232B (en) | Anode for cathodic corrosion protection | |
| DE1094245B (en) | Lead dioxide electrode for use in electrochemical processes | |
| DE1421994A1 (en) | Process, device and means for cleaning metal surfaces | |
| DE895685C (en) | Metal cleaning bath | |
| DE843489C (en) | Method of electroplating with indium | |
| US2241585A (en) | Process for removing metallic coatings from metallic parts | |
| DE2728650C2 (en) | Process for pre-treating steel surfaces for subsequent coating | |
| DE347219C (en) | Process for the electrolytic cleaning of objects made of iron or iron alloys | |
| DE740431C (en) | Process for reducing or preventing acid corrosion of metals or metal alloys, especially of iron and iron alloys | |
| DE893740C (en) | Process for the production of protective coatings on metals such as magnesium and its alloys | |
| DE496593C (en) | Process for the production of galvanic coatings using a bipolar electrode | |
| DE709458C (en) | Process for the production of resistant and corrosion-preventing surface layers on iron | |
| DE654270C (en) | Process for the electrolytic production of coatings from tungsten alloys | |
| DE2365499A1 (en) | METHOD OF MANUFACTURING TINNED STEEL SHEETS | |
| DE713436C (en) | Process for removing scale and brass solder residues from iron surfaces from the application of metallic protective coatings | |
| DE615909C (en) | Bath for galvanic cobalt deposition | |
| US3689385A (en) | Method for the surface treatment of aluminum electrodes for the electrolytic production of zinc,and electrodes thus treated | |
| DE687027C (en) | Process for the anodic pretreatment of bearing shells made of composite metal | |
| AT133216B (en) | Process for pickling workpieces made of iron or metal alloys by electrolytic means. | |
| DE1621674C3 (en) | Bath and process for the simultaneous electrolytic pickling and degreasing of iron objects, preferably wires and strips, as a pretreatment for electroplating | |
| DE44094C (en) | Method of coating cast iron with tin | |
| DE1960357C3 (en) | Process for the continuous electrolytic regeneration of solutions containing copper and zinc in pickling plants | |
| DE700539C (en) | Electrical conductor made of copper or aluminum for rubber-insulated wires | |
| DE656396C (en) | Process for the production of metallic-galvanic cover layers as a basis for protective coatings | |
| DE672996C (en) | Process for nickel-plating highly electronegative metals, in particular zinc and zinc alloys |