EP1186847A2 - Verfahren zur Beseitigung von Beschichtungs- und/oder Erosionsschäden - Google Patents
Verfahren zur Beseitigung von Beschichtungs- und/oder Erosionsschäden Download PDFInfo
- Publication number
- EP1186847A2 EP1186847A2 EP01116287A EP01116287A EP1186847A2 EP 1186847 A2 EP1186847 A2 EP 1186847A2 EP 01116287 A EP01116287 A EP 01116287A EP 01116287 A EP01116287 A EP 01116287A EP 1186847 A2 EP1186847 A2 EP 1186847A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- coating material
- barrel
- coating
- sio
- damage
- 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.)
- Granted
Links
- 238000000576 coating method Methods 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000003628 erosive effect Effects 0.000 title claims abstract description 10
- 239000011248 coating agent Substances 0.000 claims abstract description 45
- 239000000463 material Substances 0.000 claims abstract description 42
- 239000000843 powder Substances 0.000 claims abstract description 4
- 229910052845 zircon Inorganic materials 0.000 claims abstract description 4
- 238000004140 cleaning Methods 0.000 claims abstract 2
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 7
- 230000002950 deficient Effects 0.000 claims description 5
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 3
- 229910004283 SiO 4 Inorganic materials 0.000 claims description 3
- 238000005474 detonation Methods 0.000 claims description 3
- 230000008569 process Effects 0.000 abstract description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 2
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 229910052839 forsterite Inorganic materials 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 235000012239 silicon dioxide Nutrition 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 8
- 239000007789 gas Substances 0.000 description 8
- 230000008439 repair process Effects 0.000 description 4
- 239000002318 adhesion promoter Substances 0.000 description 2
- 239000000919 ceramic Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229910001182 Mo alloy Inorganic materials 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 229910001295 No alloy Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- PXHVJJICTQNCMI-UHFFFAOYSA-N nickel Substances [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 239000003380 propellant Substances 0.000 description 1
- 238000005488 sandblasting Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F41—WEAPONS
- F41A—FUNCTIONAL FEATURES OR DETAILS COMMON TO BOTH SMALLARMS AND ORDNANCE, e.g. CANNONS; MOUNTINGS FOR SMALLARMS OR ORDNANCE
- F41A21/00—Barrels; Gun tubes; Muzzle attachments; Barrel mounting means
- F41A21/22—Barrels which have undergone surface treatment, e.g. phosphating
Definitions
- the invention relates to a method for removing on the inner surface a coating and / or erosion damage to a gun barrel.
- Gun barrels made of steel of large caliber barrel guns in particular show at Shooting performance-enhanced types of ammunition due to their being created when fired high gas temperatures and flow velocities strong erosions wear the respective weapon barrel before it has reached the end of its fatigue life.
- the invention has for its object to provide a method with which Be Gun tubes showing layering and erosion damage on simple and inexpensive Can be repaired in this way without any significant reduction of the supporting pipe cross-section is connected.
- the invention is essentially based on the idea that the defective tube areas be filled out by an appropriate coating material, so that a closed pipe surface is created.
- the coating process and the coating material are coordinated so that the inner surface of the pipe can be repaired locally without the mechanical, metallographic and metallurgical material properties (autofrettage residual stresses, material composition, Change structure) of the material of the gun barrel.
- After applying of the coating material can then the inner surface of the gun barrel mechanically reworked to the surface by means of turning, grinding or honing smooth the repaired areas.
- the coating material can be supplied as powder, tape or wire and by means of Flame, detonation, arc or plasma discharge melted and towards the coating pipe surface can be accelerated, where it solidifies into a solid layer.
- the one to be coated is /
- the surface of the gun barrel to be repaired has not melted.
- the plasma discharge or the arc is not transferred to the component. It only serves to melt the filler metal. No alloy formation takes place. she should even be avoided.
- the coating material should be selected that it has a high adhesive strength on the pipe material, not due to the propellant gases is removed and due to the pipe expansion and the abrasive load is not mechanically destroyed by the projectile.
- Materials such as SiO 2 or ZrSiO4, Mg 2 SiO 4 or SiO 2 50 / Zr Si O 4 40 / Al 2 O 3 10 have proven particularly suitable as coating materials. Such materials are characterized by very high thermal shock resistance and low thermal expansion. In addition, cracks that occur in the repair site are healed by briefly melting the areas near the surface during the shot. However, other ceramic or metallic coating materials such as Fe 64 / Ni 36 and their mixtures such as WC 90 / Co 10 can also be used.
- an adhesion promoter when applying the coating material the workpiece surface to be coated is applied.
- a promoter molybdenum or nickel alloys come into consideration.
- the weapon barrel is preheated to 200 to 300 ° C. as a whole or in the areas to be coated, since residual compressive stresses then arise in the respective repair site during solidification and subsequent cooling. These are due to the low thermal expansion coefficients of the ceramic layer materials (e.g. SiO 2 0.54 x 10 -6 K -1 ).
- the preheated pipe expands more than the layer material. That is, that it contracts more when it cools down, shrinks and creates residual compressive stresses in the layer material.
- the repair work on the same gun barrel can be repeated several times be repeated.
- 1 denotes a section of a weapon barrel, the inner surface is coated with a hard chrome layer 2.
- the chrome layer 2 chipped and the gun barrel 1 damaged by erosion, so that a depression 4 has arisen.
- the weapon barrel 1 is first, e.g. using sandblasting, cleaned in the area to be repaired 3. Then a coating head 5 introduced into the interior of the gun barrel 1.
- the coating head 5 is for this purpose via a moving device 6 with a for reasons of clarity Manipulator device, not shown, for translatory and rotary movement connected.
- the coating head 5 can be, for example, a gas, plasma or Welding torch, but also a detonation cannon. With the coating head 5 are both a line 7 for supplying energy and a pipeline 8 connected to supply a protective gas. In addition, the powder, wire or tape Coating material via a corresponding feed device 9 to the coating head 5 fed.
- the coating head 5 is positioned over the recess 4 and the coating material, for example consisting of a material made of SiO 2 or ZrSiO4, Mg 2 SiO 4 or SiO 2 50 / Zr Si O 4 40 / Al 2 O 3 10, is melted and accelerated to the pipe surface to be coated.
- the molten coating material 10 strikes the workpiece surface to be repaired and forms a solidified closed layer 11 there. There is no melting of the tube material, so that no structural transformation zone is formed in the tube material and the mechanical, metallurgical and metallographic properties of the weapon barrel 1 are not influenced.
- the process is carried out under a protective gas atmosphere or in a vacuum, a reaction of the molten coating material 10 with the ambient atmosphere to prevent.
- the coating head 5 moves with the help the manipulator device, not shown, the next defective pipe area and also fills the corresponding recess with the coating material on.
- the coating head After completing the coating of all defective pipe areas, the coating head will be 5 removed from the gun barrel 1 and filled with the coating material 11 Areas are machined (e.g. turning) reworked.
- the invention is of course not based on the embodiment described above limited. This can accelerate the particles of the coating material be supported by the supply of gas.
- the coating head another connection for a corresponding gas line.
- an adhesion promoter can also be added to the coating head, which then melted and together with the coating material onto the one to be coated Surface of the barrel.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Coating By Spraying Or Casting (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
Description
- 1
- Waffenrohr, Abschnitt
- 2
- Hartchromschicht, Chromschicht
- 3
- Bereich, Rohrbereich
- 4
- Vertiefung
- 5
- Beschichtungskopf, Vorrichtung
- 6
- Verfahreinrichtung
- 7
- Leitung
- 8
- Rohrleitung
- 9
- Zuführeinrichtung
- 10
- Beschichtungswerkstoff
- 11
- Beschichtungswerkstoff, Schicht
Claims (5)
- Verfahren zur Beseitigung von an der inneren Oberfläche eines Waffenrohres (1) befindlichen Beschichtungs- und/oder Erosionsschäden, dadurch gekennzeichnet, daß nach der Reinigung der inneren Oberfläche des Waffenrohres (1) die schadhaften Rohrbereiche (3) durch einen geeigneten Beschichtungswerkstoff (11) ausgefüllt werden und daß anschließend die innere Oberfläche des Waffenrohres (1) mittels Drehen, Schleifen oder Honen mechanisch nachbearbeitet wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Beschichtungswerkstoff in einer entsprechenden Vorrichtung (5) durch eine Flamme, eine Detonation, einen Lichtbogen oder eine Plasmaentladung aufgeschmolzen und auf die zu beschichtende Werkstückoberfläche beschleunigt wird.
- Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß das Beschichtungsmaterial der Vorrichtung in pulver-, band- oder drahtförmiger Form zugeführt wird.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß als Beschichtungswerkstoff ein Werkstoff wie SiO 2 oder ZrSiO4, Mg 2 SiO 4 oder SiO 2 50 / Zr Si O 4 40 / Al 2 O 3 10 verwendet wird.
- Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß mehrere Schichten gleicher oder unterschiedlicher Schichtwerkstoffe nacheinander auf die schadhaften Rohrbereiche (3) aufgebracht werden.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10041114 | 2000-08-22 | ||
| DE2000141114 DE10041114A1 (de) | 2000-08-22 | 2000-08-22 | Verfahren zur Beseitigung von Beschichtungs-und/oder Erosionsschäden |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1186847A2 true EP1186847A2 (de) | 2002-03-13 |
| EP1186847A3 EP1186847A3 (de) | 2003-11-19 |
| EP1186847B1 EP1186847B1 (de) | 2006-03-29 |
Family
ID=7653341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20010116287 Expired - Lifetime EP1186847B1 (de) | 2000-08-22 | 2001-07-05 | Verfahren zur Beseitigung von Beschichtungs- und/oder Erosionsschäden |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1186847B1 (de) |
| DE (2) | DE10041114A1 (de) |
| ES (1) | ES2258997T3 (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106435457A (zh) * | 2016-10-08 | 2017-02-22 | 无锡鸿海龙船机有限公司 | 一种抗擦伤液压联轴器内套的增摩方法 |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10328450A1 (de) | 2003-06-25 | 2005-01-20 | Rheinmetall W & M Gmbh | Verfahren zur Beseitigung von Beschichtungs- und/oder Erosionsschäden |
| RU2499968C1 (ru) * | 2012-07-13 | 2013-11-27 | Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Самарский государственный технический университет" | Способ упрочнения стволов огнестрельного оружия |
| DE102016119984A1 (de) * | 2016-10-20 | 2018-04-26 | Röder Maschinenbau GmbH | Verfahren und Einsatz zur Wiederaufbereitung von Verschleißteilen von Strahlschneidern sowie Bauteil zur Aufnahme eines Einsatzes |
| RU2706995C1 (ru) * | 2019-06-24 | 2019-11-21 | Общество с ограниченной ответственностью "Уральский инженерный центр" (ООО "УИЦ") | Способ очистки, восстановления и упрочнения внутренней цилиндрической поверхности нарезного ствола оружия и устройство для его осуществления |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19919687A1 (de) | 1999-04-30 | 2000-11-02 | Rheinmetall W & M Gmbh | Verfahren zur Innenbeschichtung eines Waffenrohres |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1521743C3 (de) * | 1965-04-09 | 1976-01-08 | Harry Fairlawn N.J. Friedman (V.St.A.) | Mittel und Verfahren zum Blaufärben von Schußwaffenläufen |
| DE1281771B (de) * | 1968-04-18 | 1968-10-31 | Berghaus Elektrophysik Anst | Verfahren und Vorrichtung zum Ionitrierhaerten von Rohren aus Eisen und Stahl mittels elektrischer Glimmentladung |
| GB2070741B (en) * | 1980-02-06 | 1984-02-15 | Secr Defence | Reducing gun erosion by transfer and diffusion coating |
| IL120140A (en) * | 1997-02-04 | 2001-01-11 | Israel Atomic Energy Comm | Thermal spray coating element and method and apparatus for using same |
-
2000
- 2000-08-22 DE DE2000141114 patent/DE10041114A1/de not_active Withdrawn
-
2001
- 2001-07-05 DE DE50109351T patent/DE50109351D1/de not_active Expired - Lifetime
- 2001-07-05 EP EP20010116287 patent/EP1186847B1/de not_active Expired - Lifetime
- 2001-07-05 ES ES01116287T patent/ES2258997T3/es not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19919687A1 (de) | 1999-04-30 | 2000-11-02 | Rheinmetall W & M Gmbh | Verfahren zur Innenbeschichtung eines Waffenrohres |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106435457A (zh) * | 2016-10-08 | 2017-02-22 | 无锡鸿海龙船机有限公司 | 一种抗擦伤液压联轴器内套的增摩方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1186847A3 (de) | 2003-11-19 |
| DE10041114A1 (de) | 2002-03-07 |
| EP1186847B1 (de) | 2006-03-29 |
| DE50109351D1 (de) | 2006-05-18 |
| ES2258997T3 (es) | 2006-09-16 |
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