CH375090A - Process for the aftertreatment of fittings - Google Patents
Process for the aftertreatment of fittingsInfo
- Publication number
- CH375090A CH375090A CH7562859A CH7562859A CH375090A CH 375090 A CH375090 A CH 375090A CH 7562859 A CH7562859 A CH 7562859A CH 7562859 A CH7562859 A CH 7562859A CH 375090 A CH375090 A CH 375090A
- Authority
- CH
- Switzerland
- Prior art keywords
- treatment agent
- agent
- borax
- solution
- grinding
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
- B24B31/02—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving rotary barrels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
- B24B31/12—Accessories; Protective equipment or safety devices; Installations for exhaustion of dust or for sound absorption specially adapted for machines covered by group B24B31/00
- B24B31/14—Abrading-bodies specially designed for tumbling apparatus, e.g. abrading-balls
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Description
Verfahren zur Nachbehandlung von Formstikken. Es ist bekannt, durch Stanzen, Pressen,- Ziehen oder dergleichen hergestellte Formstücke einer Nach behandlung nach dem sogenannten Nassverfahren zu unterziehen, sei es zur Vollendung ihrer Form durch Schleifen (Entgraten und Kantenverrunden), zur Vorbereitung ihrer Oberfläche für eine Galvani- sierung oder Lackierung durch Reinigen, Entrosten und Glätten, oder zur direkten Verschönerung durch Polieren.
Das Nassverfahren besteht darin, dass eine grosse Anzahl der zu behandelnden Formstücke, zu sammen mit Schleif- oder Polierkörpern (Körner, Kugeln oder dergleichen) von geeigneter Beschaffen heit und Grösse, und in Gegenwart -eines flüssigen Behandlungsmittels in einem Gefäss (Trommel oder Glocke) rotiert wird.
Der gewünschte Effekt kommt dabei durch das mechanische Schleifen und Schlagen der den Gefässinhalt bildenden Elemente und durch gleichzeitige chemische Wirkung des Behandlungsmit tels zustande.
Die Erfindung bezieht sich auf die Wahl eines technisch vorteilhaften Behandlungsmittels.
Bisher war es zum Erzielen bester Wirkung not wendig, jeweils ein dem Material der Formstücke angepasstes Behandlungsmittel zu verwenden. So waren z. B. für Eisen und seine Legierungen, für Kupfer und seine Legierungen, für Aluminium und Zink sowie für weitere Metalle jeweils verschieden- artige Behandlungsmittel notwendig. Ausserdem waren zum Schleifen, Aufhellen und Polieren von Form stücken aus gegebenem Material nacheinander drei verschiedene Behandlungsmittel anzuwenden.
Neben dem offensichtlichen Nachteil, dass also eine grosse Anzahl von verschiedenen Mitteln in Vorrat gehalten werden musste, führten Verwechslungen zwischen den äusserlich schlecht voneinander unterscheidbaren Sub stanzen wegen mangelhafter Wirkung zu Ausschuss. Es sind auch Fälle bekannt; wo die Verwendung falscher- Mittel zufolge chemischer Reaktion zwischen Behandlungsmittel und Gut zu Unfällen geführt hat.
Das gemäss der Erfindung zu verwendende Be- handlungsmittel lässt sich nun mit bestem Erfolg für alle Metalle verwenden, und überdies ist für das Schleifen (insbesondere Entgraten) und Aufhellen (Glänzen) einerseits, für das Polieren anderseits nur je eine Variante des Behandlungsmittels erforderlich. Daraus ergibt sich eine evsdente Verminderung des Sortiments und der Verwechslungsgefähr.
Erfindungsgemäss soll das beim Nassverfahren zu verwendende Behandlungsmittel Borax enthalten. Eine wässerige Lösung von 0,25 bis 25 Gramm Borax pro Liter ist als Behandlungsmittel zum Schlei fen der Formkörper geeignet und verleiht diesen gleichzeitig die gewünschte metallisch reine Ober fläche.
Meist wird es zweckmässig sein, diese Borax lösung durch Beigabe von mindestens einem der han delsüblichen - Netz- und Reinigungsmittel zu ergän zen. Wenn die Passivierungsfähigkeit eines solchen Behandlungsmittels den Anforderungen auf Eisen nicht genügen sollte, kann noch ein besonderes Pas- sivierungsmittel beigefügt werden.
Als solches ist bei spielsweise Natriumnitrit geeignet, welches bei Ver wendung, des Behandlungsmittels auch zusammen mit Formkörpern aus anderen Metallen nicht störend wirkt.
Nach Beigabe von mindestens einem der an sich bekannten Mittel zur Erhöhung der Viskosität, z. B. Carboxymethylzellulose, eignet sich die wässerige Boraxlösung zum Polieren der Formkörper. Die den Gefässinhalt bildenden Elemente wirken dann nicht mehr abtragend wie beim Entgraten und Reinigen, sondern polierend aufeinander ein. Weiter kann dem Behandlungsmittel ein Mittel zur Erhöhung der Schlüpfrigkeit, beispielsweise Leime, Eiweissstoffe, Gummiarabikum, beigegeben werden.
Da das Lösungsmittel in den beiden Prozessen Schleifen und Reinigen einerseits, Polieren anderseits - dasselbe ist, kann zwischen den beiden Prozessen einfach das erste Behandlungsmittel aus dem Gefäss abgelassen und das zweite eingefüllt werden. Es ist insbesondere keine Zwischenreinigung oder teilweise Auswechslung der Charge notwendig.
Process for the aftertreatment of moldings. It is known to subject shaped pieces produced by punching, pressing, drawing or the like to an after-treatment according to the so-called wet process, be it to complete their shape by grinding (deburring and edge rounding), to prepare their surface for electroplating or painting by cleaning, derusting and smoothing, or for direct beautification by polishing.
The wet process consists in that a large number of the shaped pieces to be treated, together with grinding or polishing media (grains, balls or the like) of a suitable nature and size, and in the presence of a liquid treatment agent in a vessel (drum or bell) is rotated.
The desired effect comes about through the mechanical grinding and beating of the elements forming the contents of the vessel and through the simultaneous chemical action of the treatment agent.
The invention relates to the choice of a technically advantageous treatment agent.
So far, to achieve the best effect it was not necessary to use a treatment agent adapted to the material of the fittings. So were z. B. for iron and its alloys, for copper and its alloys, for aluminum and zinc as well as for other metals, different treatment agents are necessary. In addition, three different treatment agents had to be used in succession for grinding, lightening and polishing moldings made of a given material.
In addition to the obvious disadvantage that a large number of different agents had to be kept in stock, mix-ups between the substances, which were difficult to distinguish from one another on the outside, led to rejects due to their ineffective effect. Cases are also known; where the use of wrong means has led to accidents due to chemical reaction between the treatment agent and the goods.
The treatment agent to be used according to the invention can now be used with the greatest success for all metals, and moreover, only one variant of the treatment agent is required for grinding (especially deburring) and brightening (shining) on the one hand, and for polishing on the other. This results in an eventual reduction in the range and the risk of confusion.
According to the invention, the treatment agent to be used in the wet process should contain borax. An aqueous solution of 0.25 to 25 grams of borax per liter is suitable as a treatment agent for grinding the moldings and at the same time gives them the desired metallically pure surface.
In most cases it will be useful to supplement this borax solution by adding at least one of the commercially available wetting and cleaning agents. If the passivating ability of such a treatment agent does not meet the requirements for iron, a special passivating agent can be added.
Sodium nitrite, for example, is suitable as such, which does not have a disruptive effect when the treatment agent is used, even together with molded bodies made of other metals.
After adding at least one of the known agents for increasing the viscosity, eg. B. carboxymethyl cellulose, the aqueous borax solution is suitable for polishing the moldings. The elements that make up the contents of the vessel then no longer have an abrasive effect, as in deburring and cleaning, but have a polishing effect on one another. Furthermore, an agent for increasing the slipperiness, for example glue, protein, gum arabic, can be added to the treatment agent.
Since the solvent is the same in the two processes grinding and cleaning on the one hand, and polishing on the other hand, the first treatment agent can simply be drained from the vessel and the second filled in between the two processes. In particular, no intermediate cleaning or partial replacement of the batch is necessary.
Claims (1)
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL294118D NL294118A (en) | 1959-07-09 | ||
CH7562859A CH375090A (en) | 1959-07-09 | 1959-07-09 | Process for the aftertreatment of fittings |
DEO7146A DE1190763B (en) | 1959-07-09 | 1959-12-15 | Process for the wet aftertreatment of metal fittings |
FR40550A FR1261595A (en) | 1959-07-09 | 1960-06-27 | Finishing process for shaped parts |
DK258060A DK102892C (en) | 1959-07-09 | 1960-07-01 | Method of finishing shaped metal parts. |
BE592774A BE592774A (en) | 1959-07-09 | 1960-07-08 | Process for the finishing treatment of shaped parts. |
GB23913/60A GB877704A (en) | 1959-07-09 | 1960-07-08 | Method for the secondary treatment of formed parts |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH7562859A CH375090A (en) | 1959-07-09 | 1959-07-09 | Process for the aftertreatment of fittings |
Publications (1)
Publication Number | Publication Date |
---|---|
CH375090A true CH375090A (en) | 1964-02-15 |
Family
ID=4534307
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH7562859A CH375090A (en) | 1959-07-09 | 1959-07-09 | Process for the aftertreatment of fittings |
Country Status (7)
Country | Link |
---|---|
BE (1) | BE592774A (en) |
CH (1) | CH375090A (en) |
DE (1) | DE1190763B (en) |
DK (1) | DK102892C (en) |
FR (1) | FR1261595A (en) |
GB (1) | GB877704A (en) |
NL (1) | NL294118A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BR8305575A (en) * | 1983-06-10 | 1985-02-20 | Huntington Alloys | PROCESS TO REMOVE GLASS LUBRICANT FROM AN EXTRUDED; PROCESS TO EXTRUDE LUBRICATED BILLS WITH GLASS |
FR2589884A1 (en) * | 1985-11-08 | 1987-05-15 | Bricard | Process for the surface treatment of articles made of iron or ferrous alloy |
DE10205645B4 (en) | 2002-02-12 | 2010-07-22 | Neef Gmbh & Co.Kg | Process for the aftertreatment of deformed stainless steel moldings |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE284558C (en) * | 1900-01-01 |
-
0
- NL NL294118D patent/NL294118A/xx unknown
-
1959
- 1959-07-09 CH CH7562859A patent/CH375090A/en unknown
- 1959-12-15 DE DEO7146A patent/DE1190763B/en active Pending
-
1960
- 1960-06-27 FR FR40550A patent/FR1261595A/en not_active Expired
- 1960-07-01 DK DK258060A patent/DK102892C/en active
- 1960-07-08 BE BE592774A patent/BE592774A/en unknown
- 1960-07-08 GB GB23913/60A patent/GB877704A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
BE592774A (en) | 1960-10-31 |
GB877704A (en) | 1961-09-20 |
DE1190763B (en) | 1965-04-08 |
DK102892C (en) | 1965-10-18 |
FR1261595A (en) | 1961-05-19 |
NL294118A (en) |
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