DE886549C - Process for the production of screw connections - Google Patents
Process for the production of screw connectionsInfo
- Publication number
- DE886549C DE886549C DEE4671A DEE0004671A DE886549C DE 886549 C DE886549 C DE 886549C DE E4671 A DEE4671 A DE E4671A DE E0004671 A DEE0004671 A DE E0004671A DE 886549 C DE886549 C DE 886549C
- Authority
- DE
- Germany
- Prior art keywords
- connection
- coating
- screw
- production
- come
- 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 7
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 239000011248 coating agent Substances 0.000 claims description 10
- 238000000576 coating method Methods 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 241000530268 Lycaena heteronea Species 0.000 claims description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 150000003839 salts Chemical class 0.000 claims description 2
- 229910052709 silver Inorganic materials 0.000 claims description 2
- 239000004332 silver Substances 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- 239000011135 tin Substances 0.000 claims description 2
- 229910052718 tin Inorganic materials 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 239000011701 zinc Substances 0.000 claims description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B33/00—Features common to bolt and nut
- F16B33/06—Surface treatment of parts furnished with screw-thread, e.g. for preventing seizure or fretting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Prevention Of Electric Corrosion (AREA)
- Sliding-Contact Bearings (AREA)
- Lubricants (AREA)
- Protection Of Pipes Against Damage, Friction, And Corrosion (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Description
(WiGBl. S. 175)(WiGBl. P. 175)
AUSGEGEBEN AM 13. AUGUST 1953ISSUED AUGUST 13, 1953
E 4671 XII j 47 aE 4671 XII j 47 a
Die Erfindung betrifft ein Verfahren zur Herstellung von solchen Schraubenverbindungen, bei denen mindestens der eine der beiden Teile der Verbindung, von welchen der eine mit Außengewinde und der andere mit Innengewinde versehen ist, aus rostfreiem Stahl besteht. Es hat sich beim Zusammenbau von solchen Schraubenverbindungen, die z. B. bei der Herstellung von Naben für Schiffsschrauben mit verstellbaren Flügeln häufig verwendet werden, gezeigt, daß der eine Teil der Verbindung Neigung hat, in den anderen Teil einzuschneiden, wenn er mit diesem verschraubt wird. Dies ist insbesondere der Fall, wenn beide Teile der Verbindung aus rostfreiem Stahl hergestellt werden, und tritt auch dann ein, wenn die beiden Verbindungsteile aus Stoffen mit unterschiedlichem Härtegrad bestehen. Auch sonst ganz unbeträchtliche Fehler an den Gewinden, wie sie in der Praxis kaum vermieden werden können, verursachen derartige Einschneidungen.The invention relates to a method for producing such screw connections which at least one of the two parts of the connection, of which the one with an external thread and the other internally threaded is made of stainless steel. It has to be reassembled of such screw connections that z. B. in the manufacture of hubs for propellers With adjustable wings often used, shown that the one part of the connection slope has to cut into the other part when it is screwed to this one. This is particular the case when both parts of the joint are made of stainless steel, and occurs even then when the two connecting parts are made of materials with different degrees of hardness. Even otherwise negligible errors in the threads, which can hardly be avoided in practice can cause such incisions.
Die Erfindung verfolgt den Zweck, diese Schwierigkeit in wirksamer Weise und ohne größere Kosten zu beheben" Das Verfahren besteht in der Hauptsache darin, daß die Schraubengewinde und evtl. auch andere Oberflächen des einen Verbindungsteils, die bei der Ausführung der Verbindung mit entsprechenden Oberflächen des anderen Verbindungsteils in Berührung kommen, mit einem dünnen Überzug aus einem Metall versehen werden, welches bessere Gleiteigenschaften als Stahl hat, wie z. B. Kupfer, Silber, Zink oder Zinn. Hierdurch wird, wie sich bei ausgeführten Versuchen herausgestellt hat, das Einschneiden bei dem Einschrauben des einen Teils in den anderen verhindert.The invention aims to solve this problem in an effective manner and without major Fixing costs "The main thing is that the screw threads and possibly also other surfaces of the one connecting part that are used when the connection is made with corresponding surfaces of the other connecting part come into contact with a be provided with a thin coating of a metal, which has better sliding properties than steel, such as B. copper, silver, zinc or tin. This is how it turned out in the tests carried out prevents cutting when screwing one part into the other.
Von den genannten, verhältnismäßig weichen Überzugsmetallen hat sich besonders Kupfer als sehr geeignet erwiesen. DerErfinder hat festgestellt, daß der Überzug bei Verwendung dieses Metalls sehr dünn gemacht werden kann und nur eine Stärke von etwa ο,οΐ mm zu haben braucht, um vor dem (Einschneiden wirksam auch in solchen Fällen zu schützen, wo die Gewinde fehlerhaft sind, was sonst unfehlbar Einschneiden verursacht. DieOf the mentioned, relatively soft coating metals, copper in particular has proven to be proved very suitable. The inventor has found that the coating using this metal can be made very thin and only needs to have a thickness of about ο, οΐ mm in front of (to protect cutting effectively even in cases where the thread is faulty, what otherwise causing infallible cutting. the
Stärke des Überzugs soll auf jeden Fall geringer als o, i- mm sein, weil sonst zu befürchten ist, daß er abblättert. Der Metallöberzug wird zweckmäßig auf elektrolytischem Wege hergestellt; er wird nicht nur auf die Gewindefläche selbst aufgebracht, sondern auch auf solchen Oberflächen der Schraubenverbindungsteile, wie z. B. den Oberflächen von Muttern, Schraubenköpfen und anderen Anschlägen, welche bei der Ausführung der Schraubenverbindung miteinander in Berührung kommen und gegeneinander schneiden könnten. The thickness of the coating should in any case be less than 0.1 mm, because otherwise it is to be feared that it flakes off. The metal coating is expediently produced electrolytically; he will not applied only to the thread surface itself, but also to such surfaces of the screw connection parts, such as B. the surfaces of nuts, screw heads and other stops that occur during the execution of the screw connection could come into contact with each other and cut against each other.
Um galvanische Korrosion zwischen den Metallen zu verhindern, wenn die Schraubenverbindung der Einwirkung von Salzwasser oder anderen korrodierenden Flüssigkeiten ausgesetzt wird, kann man zweckmäßig die Verbindungen mit geeigneten Dichtungen versehen, die verhindern, daß die genannten Flüssigkeiten mit den mit dem Metallüberzug versehenen Oberflächen in Berührung kommen.To prevent galvanic corrosion between the metals when the screw connection of the Exposure to salt water or other corrosive liquids can cause one expediently provided the connections with suitable seals to prevent the aforementioned Liquids come into contact with the surfaces provided with the metal coating.
DieErfmdung umfaßt schließlich auch Schraubenverbindungen, die nach dem oben beschriebenen Verfahren hergestellt worden sind.Finally, the invention also includes screw connections, which have been produced by the method described above.
Claims (5)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE301090X | 1950-12-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE886549C true DE886549C (en) | 1953-08-13 |
Family
ID=20307423
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEE4671A Expired DE886549C (en) | 1950-12-27 | 1951-11-22 | Process for the production of screw connections |
Country Status (4)
| Country | Link |
|---|---|
| CH (1) | CH301090A (en) |
| DE (1) | DE886549C (en) |
| FR (1) | FR1045327A (en) |
| GB (1) | GB703513A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202017103484U1 (en) * | 2017-06-09 | 2018-09-13 | Gea Mechanical Equipment Gmbh | Screw connection to a centrifuge |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0012441A1 (en) * | 1978-12-14 | 1980-06-25 | Eberhard Jaeger GmbH & Co. KG | Self-tapping drill-screw |
| US4468309A (en) * | 1983-04-22 | 1984-08-28 | White Engineering Corporation | Method for resisting galling |
| FR2842574B1 (en) * | 2002-07-22 | 2008-02-29 | Bollhoff Otalu Sa | NOYE NUT TO BE SELF-REINFORCED BY A REPORTED NET |
| DE102010008447A1 (en) * | 2010-02-18 | 2011-09-08 | Hydac Accessories Gmbh | Verbindungsvorichtung and use of a metallic material |
-
1951
- 1951-11-08 CH CH301090D patent/CH301090A/en unknown
- 1951-11-20 FR FR1045327D patent/FR1045327A/en not_active Expired
- 1951-11-22 DE DEE4671A patent/DE886549C/en not_active Expired
- 1951-12-17 GB GB29504/51A patent/GB703513A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202017103484U1 (en) * | 2017-06-09 | 2018-09-13 | Gea Mechanical Equipment Gmbh | Screw connection to a centrifuge |
Also Published As
| Publication number | Publication date |
|---|---|
| FR1045327A (en) | 1953-11-25 |
| CH301090A (en) | 1954-08-31 |
| GB703513A (en) | 1954-02-03 |
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