EP0160882B1 - Einrichtung zum Auftragen einer Schutzschicht auf die Schweissoder Lötnaht von Dosenrümpfen - Google Patents

Einrichtung zum Auftragen einer Schutzschicht auf die Schweissoder Lötnaht von Dosenrümpfen Download PDF

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Publication number
EP0160882B1
EP0160882B1 EP85104898A EP85104898A EP0160882B1 EP 0160882 B1 EP0160882 B1 EP 0160882B1 EP 85104898 A EP85104898 A EP 85104898A EP 85104898 A EP85104898 A EP 85104898A EP 0160882 B1 EP0160882 B1 EP 0160882B1
Authority
EP
European Patent Office
Prior art keywords
peripheral surface
application roller
region
roller
application
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 - Lifetime
Application number
EP85104898A
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German (de)
English (en)
French (fr)
Other versions
EP0160882A2 (de
EP0160882A3 (en
Inventor
Matthias Frei
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Elpatronic AG
Original Assignee
Elpatronic AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Publication of EP0160882A2 publication Critical patent/EP0160882A2/de
Publication of EP0160882A3 publication Critical patent/EP0160882A3/de
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Publication of EP0160882B1 publication Critical patent/EP0160882B1/de
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C7/00—Apparatus specially designed for applying liquid or other fluent material to the inside of hollow work
    • B05C7/06—Apparatus specially designed for applying liquid or other fluent material to the inside of hollow work by devices moving in contact with the work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C7/00—Apparatus specially designed for applying liquid or other fluent material to the inside of hollow work
    • B05C7/005—Apparatus specially designed for applying liquid or other fluent material to the inside of hollow work by devices in contact with moving work
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S118/00—Coating apparatus
    • Y10S118/15—Roller structure

Definitions

  • the invention relates to a device for applying a protective layer to the weld or solder seam of can bodies with an application roller serving to apply a coating mass within an area covering the seam on the inside of the can body, the two lateral, for supporting the can body on the application roller serving supporting edges and a middle part located between the supporting edges and used to carry and apply the coating mass, which extends from the center of the roll to each of the two roll sides to the last kink or turning point of one representing the roll profile of the application roll and from one to the other roll side peripheral surface line extends before the point or area start on the surface line or, in the absence of such a kink or inflection point, extends to the point or area start in which the can body on the support rim assigned to the relevant roll side d comes into circulation.
  • a roller was used as the application roller in the device of the type mentioned at the beginning in CH-PS 624,591, the peripheral lateral surface of which has a concave curvature in the central part and an essentially curved portion in the edge areas forming the lateral support edges for supporting the can body on the application roller of the can body had a convex curvature (CH-PS 624.591, Claim 7 and S.3, right-hand sp., Z.31-35).
  • the middle part of the application roll extended from the center of the roll to each of the two roll sides with a constant concave curvature up to a kink point of the surface line representing the roll profile of the application roll, at which the middle part adjoins the convex edge area assigned to the relevant roll side and forming the supporting edge ( CH-PS 624,591, Fig. 5,6,8).
  • This formation of the application roll was partly due to the special design of the stripping device and the above-mentioned shape of the stripper, which can be changed for the selectability of the profile of the lacquer layer applied to the weld seam (CH-PS 624.591, p.3, r.p. , Z.19-29, and Fig.
  • lacquer beads are also undesirable because they can tear when the edges of the can bodies are flanged and such cracks can also be the starting points for a gradual detachment of the lacquer layer from the base during long-term storage.
  • Avoiding the paint beads when applying the paint layer on the weld seam with the device described in DE-PS 31 34 968 was again only possible by using a relatively thin liquid paint, in which the main part of the paint from the first, with relatively high support edges and one Middle part with a straight axially parallel peripheral surface line was applied and the two additional, not provided with supporting edges application areas promoted only relatively little paint and therefore practically no paint pressed out to the sides when pressing the paint on the base, but at least the device was able to DE-PS 31 34 968 uses a somewhat less viscous lacquer and thus also a somewhat larger layer thickness of the lacquer layer above the weld seam of approximately 5 to 8 microns can be achieved, which, however, was still not sufficient for long-term storage of aggressive contents.
  • 4,361,113 apparently have not succeeded in achieving layer thicknesses of the lacquer coating over the weld seam in the optimal order of magnitude, that is to say of about 30 to 60 microns, but that this application roller apparently only has relatively thick lacquer coating e of more than 150 micron layer thickness can be applied.
  • the invention was therefore based on the object to provide a device of the type mentioned, which is suitable to provide the weld seams of can bodies with an optimal coating in all respects, all of the requirements that arise in the further processing of the can bodies and the later use of the cans such as crack resistance during flaring, resistance to aggressive filling goods, exclusion of gas inclusions in the paint as well as between paint and base and firm adhesion of the paint to the base.
  • the application roll has at least one indentation exclusively in a central region of its central part with a region width of 15% to 50% of the width of the central part, and the peripheral surface line in this central region has at least one recess Kink point and / or at least two turning points.
  • “Breakpoints” are points at which the surface line changes its direction abruptly, the tangents at such a point on the two branches of the line being different from one another; “turning points” are points of the (curved) surface line in which the concavity passes from one side of the line to the other side (definitions according to IN Bronstein and KA Semendjajew, “Taschenbuch der Mathematik", 8th edition 1968, pages 206) and 208).
  • the main advantage of the present device is that it can be used to easily achieve optimal layer thicknesses of the lacquer coating over the weld or solder seam, which are neither too low for the stresses that occur during long-term storage of aggressive filling goods, nor too large for the tensile strength stresses that occur during flanging the can body appears and, in the case of large layer thicknesses, is above the tear strength of the paint.
  • Another significant advantage of the present device is that the formation of the application roller automatically results in a profile of the applied lacquer layer, which with the greatest layer thickness immediately above the weld or soldered seam and the continuously decreasing layer thickness after the edges of the lacquer coating is too precise meets the requirements that have to be met for an optimal coating due to the existing stresses.
  • the application roller may be formed so that the center portion of the application roller has a width of at least 72%, preferably from üb l he 80%, of the roller width.
  • the best results with regard to the formation of the lacquer coating can be achieved within these design limits.
  • the present device applies that the deepest point of the deepening expediently runs from a middle straight line running between the highest and lowest point of the peripheral surface line parallel to the roller axis, which thus represents the section of the surface line belonging to the middle part of the application roll divided into sections above and below the middle straight line that the areas between the surface line and middle straight line above and below the middle line are equal in size, a greater distance than 0.775 times, preferably 0.82 times, the distance from the highest point the peripheral generatrix from the middle straight line.
  • This minimum depth of the recess is necessary, apart from exceptional cases, in order to be able to apply enough coating compound to form a protective layer with a sufficient layer thickness on the welded or soldered seam area on the inside of the can body.
  • the deepest point of the depression should therefore advantageously be at least twice as large, preferably more than four times as large, from the central straight line as the highest point of the peripheral surface line.
  • the application roll has only one recess in the central area of its central part.
  • the application roll can advantageously be designed such that the peripheral surface line in the central region of the central part of the application roll has at least one kink point, preferably located in the middle of the central region, representing an inner edge in the peripheral lateral surface of the application roll and / or two, preferably symmetrically to the center of the has middle turning points and / or two kink points located at the outer ends of the middle area and preferably also symmetrically to the center thereof, each representing an outer edge in the peripheral surface of the application roll.
  • the peripheral surface line in the central region of the central part of the application roll can have at least one kink point representing an obtuse-angled inner edge in the peripheral surface of the application roll.
  • the depression lies between two elevations located within the central region of the central part of the application roll, preferably at least approximately up to the can body.
  • the application roll can expediently be designed such that the peripheral surface line in the central region of the central part of the application roll has at least one kink point, preferably located in the middle of the central region, representing an inner edge in the peripheral lateral surface of the application roll and / or two in the region of the depression and preferably Turning points located symmetrically to the center of the central area and / or at least two in the tip area of the elevations and preferably also symmetrical to the center of the central area, each having an outer edge in the peripheral lateral surface of the application roller and / or two outside the area of the depression and preferably likewise turning points located symmetrically to the center of the central area and / or two outside the area of the depression and preferably at the outer ends of the central area and preferably also symmetrical to The center of the same, each having an inner edge in the peripheral edge in the peripheral lateral surface of the application roller and
  • the peripheral surface line at the deepest point of the depression can have an inflection point representing an obtuse-angled inner edge in the peripheral surface of the application roller.
  • the special advantage of this first variant of the basic shape is that it is possible with this variant to apply one and the same application roll with coating compound to differently sized can bodies by applying pressure rollers arranged on the outside of the can body not only to the supporting edges of the application roller but also press on the two projections provided on the same, and the space between the peripheral jacket surface in the middle part of the application roller and the inner wall of the can body remains approximately the same size when the diameter of the manufactured can bodies is changed.
  • the application roller has two depressions in the central region of its central part and one that is located between them and preferably extends at least approximately up to the can body Increase on.
  • the application roll can expediently be designed such that the peripheral surface line in the central area of the central part of the application roll has at least one kink point, preferably located in the middle of the central area, representing an outer edge in the peripheral lateral surface of the application roll and / or two in the area of the elevation and preferably turning points located symmetrically to the center of the central area and / or at least two in the area of the bottom of the depressions and preferably also located symmetrically to the center of the central area, each having an inner edge in the peripheral lateral surface of the application roller and / or two outside the area of the Elevation and preferably also symmetrical to the center of the central area and / or two outside the area of the elevation and preferably at the outer ends of the central area and preferably also symmetrical has kink points located in the middle thereof
  • the peripheral surface line can each have an inflection point representing an acute-angled inner edge in the peripheral surface of the application roller at the deepest points of the depressions.
  • the application roll can advantageously also be designed such that the peripheral surface line has an at least approximately circular convex course with a preferably larger radius of curvature, at least in the major part of its sections lying between the central region of the central part of the application roll and the outer ends of the central part than half the inside diameter of the can body.
  • the radius of curvature of the circular course should expediently lie between 1.25 times and 5 times half the inner diameter of the can body.
  • the lateral support edges used to support the body of the can on the application roll are expediently raised relative to the outer ends of the central part of the application roll and are preferably bordered by an obtuse-angled outer edge to the associated roll side and by an acute-angled outer edge to the central part of the application roll.
  • the elevated support edges have the advantage that they bring with them a relatively sharp delimitation of the outer edges of the protective sheath or essentially exclude edge smearing. They are mainly provided when the distance of the peripheral surface line from the inside of the body of the can resting on the supporting edges from the outer ends of the middle part of the application roll increases relatively weakly towards the middle region of the middle part.
  • the supporting edges are located lower than the outer ends of the central part of the application roller and preferably with an obtuse angle Adjacent the outer edge to the assigned roll side and with an obtuse-angled outer edge to the middle part of the application roll.
  • the peripheral surface line in the regions of the supporting edges which serve to support the can body has a convex curvature with a preferably at least approximately half Has inside radius of the can body corresponding radius of curvature.
  • the present device can further be developed in such a way that means for cooling the welded or soldered seam area of the can bodies before the application of the coating composition and to influence the layer thickness of the protective layer which forms after the application of the coating composition under the influence of the surface tension of the coating composition in order to influence the heating of the applied coating mass by the heated welding or soldered seam area of the can body and thus to influence the surface tension of the applied coating mass, preferably in the form of means for producing a welded or soldered seam area of the can body from the outside directed cooling air flow.
  • This has the advantage that the layer thickness of the protective layer within a certain, essentially by the formation of the peripheral lateral surface of the application roll given layer thickness range can be adapted by changing the cooling to the requirements placed on the protective layer.
  • lacquer flag 3 or 4
  • the shape, size and stability of which primarily determine the properties of the lacquer layer that forms, so to speak the end of the lacquer flag that runs out on the inside of the can body and covers the weld seam area.
  • the actual paint application takes place for the most part via this paint flag, or more precisely that the main part of the total amount of paint transferred from the application roller 2 to the inside of the can body 1 is not as previously assumed, for example at the time of contact between the application roller and Inside the can body but rather only afterwards is applied to the inside of the can body using this paint flag.
  • the application process is such that the inside of the can body is wetted with lacquer at about the point of contact between the application roller and the inside of the can body and this layer of wetting, which is still thin and adheres firmly to the metal surfaces on the inside of the can body, is then coated with the lacquer carried by the application roller subtracts from the order role.
  • the front of the paint flag has - as indicated by the examples of paint flags 3 and 4 in Figures 10 and 11 - essentially the shape of a hyperbola, the asymptotes of which with a straight line parallel to the axis of the can body on the inside of the can body and a tangent to the application roll at the exit point of the
  • the center of the paint flag on the applicator roll coincide and whose eccentricity, which is a measure of the paint flag length, is determined in the stable condition of the paint flag by the surface tension and the toughness of the paint, as well as by the surface curvatures of the paint flag, especially at the apex of the hyperbola.
  • the amount of the paint applied to the inside of the can body is essentially proportional to the volume of the paint flag and the geometric location of the largest coat of paint is the branch facing the inside of the can body of the hyperbole forming the front of the painted tab, or more precisely the outlet of this hyperload on the inside of the can body .
  • the forces acting on a paint flag are now essentially the forces caused by the movement of the can body and the rotation of the application roller and transferred to the paint flag by the toughness of the paint, in the sense of an extension of the paint flag and by the surface tension of the paint and the Forces caused by curvature of the surface of the paint flag, of which the forces caused by the convex curvature of the hyperbolic front of the paint flag act in the sense of an extension of the paint flag and the forces caused by the concave curvature of the paint flag cross section act in the sense of shortening the paint flag.
  • the concave curvature of the paint flag cross-section at the apex of said hyperbola must be so large that the forces caused thereby, in the sense of shortening the paint flag, act in the sense an extension of the paint flag acting forces, i.e. the forces caused by the movement of the can body and application roller and transferred to the paint flag by the viscosity of the paint and the forces caused by the convex curvature of the hyperbolic front of the paint flag, i.e.
  • the paint flag must be at their Formation of the shape of the concave curvature of the cross-section of the lacquer flag at the apex of the hyperbole forming the front of the lacquer flag, so that a stable state occurs, Since the shape of the lacquer flag and in particular the width of the flag front, which determines the size of the concave curvature of the lacquer flag cross-section at the apex of the flag front, essentially depends on the design of the peripheral lateral surface of the application roller, the volume of a lacquer flag can only be used when using an application roller with a suitably designed peripheral lateral surface hold a certain volume range and accordingly only achieve a certain desired profile of the lacquer coating over the weld seam area even with a suitable application roller.
  • No. 4,361,113 in the case of the use of less viscous varnishes should also have been the reason why, with this application roller, uniform varnish coatings only with viscous varnish and the resultant very large layer thicknesses of the lacquer coatings resulting from this application roll, while smaller layer thicknesses lying within the optimum range for lacquer coatings above the weld seam because of the use of less viscous paints resulting in the tendency to form several parallel paint plugs and the resulting unevenness of the paint application on the inside of the can body could not be achieved.
  • the pronounced tendency towards the formation of several paint flags observed in the application roll according to FIG. 3D of US Pat. No. 4,361,113 may also be the reason for the unsuitability of this application roll for achieving uniform paint coatings over the area of the weld seam.
  • the peripheral surface line of the application roll or its distance from the roll axis should have at least two relatively close to each other and expediently approximately equal maxima in the middle part of the application roll. In a central area of the middle part of the application roll, at the outer limits of which or within these maxima, there must be at least one depression of the peripheral surface of the application roll or at least a minimum of the distance of the peripheral surface line of the application roll from the roll axis.
  • the two maxima closest to the outer limits of the central region of the middle part of the application roll or coinciding therewith in the direction of the outer ends of the middle part of the application roll must become parts of the peripheral lateral surface of the application roll with decreasing towards the outer ends of the middle part Connect the distance between the peripheral surface line of the application roll and the roll axis.
  • the distance of the peripheral surface line of the application roll from the The roller axis is expediently to be smaller than at the associated maximum and larger than or at least as large as at the assigned outer end of the middle part of the application roll and preferably to increase continuously from each of the two outer ends of the middle part after the assigned nearest maximum. This training promotes the desired movement of the paint in the direction of the two maxima.
  • the peripheral surface line of the application roll should expediently have smaller distances from the roll axis than at the two maxima closest to or coincide with the outer limits of the central region of the middle part of the application roll.
  • the points in the supporting edge areas with the greatest distance from the roller axis should expediently have a slightly larger and advantageously at least almost equally large distance from the roller axis as the outer ends of the central part of the application roller. This configuration can prevent paint flags from forming on the supporting edges.
  • the maxima mentioned in the middle area or at the outer limits thereof should be sufficiently pronounced to enable or promote the formation of the desired paint flags at these points , which requires a certain minimum depth or a certain minimum volume of the recess, but on the other hand the lacquer volume within the recess and therefore also the volume or depth of the recess must not be too large, so that the resulting paint plugs do not come from the inside the volume of paint flowing in from the recess is pushed apart but rather pushed together by the volume of paint flowing in from the outside, so that they merge in the desired manner into a single paint flag.
  • peripheral surface lines 5 of the application rolls in FIGS. 1 to 8 have two equally high maxima 7 and 8 in the middle part 6 of the application roll, which are at the outer limits of the central region 9 of the middle part 6 of the application roll (FIGS. 1-4 u .6-8) or within the central region 9 (FIG. 5) and between which there is a depression 10 (FIGS.
  • the support edges 14 are convexly curved with a curvature adapted to the inner wall 15 of the can body.
  • the locations of the support edges 14 with the greatest distance from the roller axis are at a distance of approximately 0.1 mm from the roller axis in the application rollers shown in FIGS. 1 to 5 and 7 than the outer ends of the middle part 6 of the application roller and at The application rollers shown in FIGS. 6 and 8 have the same distance from the roller axis as these outer ends of the middle part 6.
  • the depth of the depressions 10 or 10 'and 10 "compared to the maxima 7 and 8 is in the application rollers with relatively wide depressions in the FIGS. 1 and 4 approx. 0.2 mm, in the case of application rolls with somewhat narrower depressions in FIGS.
  • lacquer coatings could be applied over the weld seam area with a layer thickness over the weld seam of up to approximately 60 microns. Even larger layer thicknesses of up to 80 or 100 microns can be achieved with the application rollers in FIGS. 5 and 7, but there is generally no great need for layer thicknesses above 60 microns.
  • the distribution of the layer thickness in the transverse direction of the coating can still be influenced to a certain extent by more or less strong cooling of the can bodies on their way from the welding station to the painting device by means of a cooling air flow directed from outside onto the weld seam of the can bodies, since the applied paint is from the not yet cooled weld seam is heated and the surface tension of the paint decreases with increasing warming, so that strong cooling of the can bodies can achieve a high surface tension of the applied paint, which tries to smooth the paint surface and thereby to some extent to compensate for the Layer thicknesses in the immediate vicinity of the weld seam ensures.
  • FIG. 9 An example of a lacquer coating that was applied with the application roller shown in FIG. 1 is shown in cross section in FIG. 9.
  • the varnish was applied to the weld seam on the Applied on the inside of a can body made of 0.2 mm thick sheet metal.
  • the application roll used had a width of 10 mm and a peripheral surface line as in FIG.
  • a layer thickness of 14 microns at a distance of 2 mm from the center of the weld seam a layer thickness of at a distance of 1 mm from the center of the weld seam 20 microns, a layer thickness of 50 microns at a distance of 0.5 mm from the center of the weld seam, a layer thickness of 40 microns above the center of the weld, a layer thickness of 20 microns at a distance of 0.5 mm from the center of the weld and a distance of 1.5 mm from the center of the weld seam a layer thickness of 10 microns.
  • the present device for applying a protective layer to the welded or soldered seam of can bodies, apart from the application roll can be constructed in the same way as it is e.g. in CH-PS 624,591 or US-PS 4,361,113, i.e. an application roll according to the present invention can be easily inserted into such a known device and, in connection with such a known device, leads to the success achieved with the present invention.
  • an application roll according to the present invention can be easily inserted into such a known device and, in connection with such a known device, leads to the success achieved with the present invention.
  • the stripping device provided for stripping the paint should be expediently designed such that, in the application rollers according to the present invention, the paint is completely stripped from the support edges 14 (which can be achieved by a scraper lying almost on the support edges 14), so that each Possibility of forming paint flags on the support edges 14 to be excluded.

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  • Coating Apparatus (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
EP85104898A 1984-05-07 1985-04-22 Einrichtung zum Auftragen einer Schutzschicht auf die Schweissoder Lötnaht von Dosenrümpfen Expired - Lifetime EP0160882B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH223784 1984-05-07
CH2237/84 1984-05-07

Publications (3)

Publication Number Publication Date
EP0160882A2 EP0160882A2 (de) 1985-11-13
EP0160882A3 EP0160882A3 (en) 1987-01-07
EP0160882B1 true EP0160882B1 (de) 1990-05-30

Family

ID=4229064

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85104898A Expired - Lifetime EP0160882B1 (de) 1984-05-07 1985-04-22 Einrichtung zum Auftragen einer Schutzschicht auf die Schweissoder Lötnaht von Dosenrümpfen

Country Status (9)

Country Link
US (1) US4674435A (enrdf_load_stackoverflow)
EP (1) EP0160882B1 (enrdf_load_stackoverflow)
JP (1) JPH0732889B2 (enrdf_load_stackoverflow)
AU (1) AU575641B2 (enrdf_load_stackoverflow)
DE (2) DE3513655A1 (enrdf_load_stackoverflow)
FR (1) FR2563753B1 (enrdf_load_stackoverflow)
GB (1) GB2159439B (enrdf_load_stackoverflow)
SE (1) SE8502215L (enrdf_load_stackoverflow)
ZA (1) ZA853435B (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0162011A3 (de) * 1984-05-08 1987-01-14 Siegfried Frei Auftragsrolle

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1445107A (en) * 1921-11-25 1923-02-13 Robert D Scott Roller
CH624591A5 (enrdf_load_stackoverflow) * 1977-05-23 1981-08-14 Paul Opprecht
DE3134968C2 (de) * 1980-10-07 1983-05-19 Paul 8962 Bergdietikon Aargau Opprecht Vorrichtung zum innenseitigen Auftragen einer Schutzschicht auf die Schweiß- bzw. Lötnaht von Dosenrümpfen
US4361113A (en) * 1981-08-24 1982-11-30 Daiwa Can Company, Limited Apparatus for painting the inner surface of the side seam of a can body
DE3150713A1 (de) * 1981-12-22 1983-06-30 Fried. Krupp Gmbh, 4300 Essen Vorrichtung mit einer auftragsrolle zum innennahtlackieren eines an beiden enden offenen dosenrumpfes mit einer verbindungsnaht

Also Published As

Publication number Publication date
ZA853435B (en) 1985-12-24
DE3513655C2 (enrdf_load_stackoverflow) 1987-11-26
AU4202885A (en) 1985-11-14
EP0160882A2 (de) 1985-11-13
GB2159439B (en) 1988-05-25
EP0160882A3 (en) 1987-01-07
GB8511505D0 (en) 1985-06-12
DE3513655A1 (de) 1985-11-07
SE8502215D0 (sv) 1985-05-06
US4674435A (en) 1987-06-23
SE8502215L (sv) 1985-11-08
DE3577978D1 (de) 1990-07-05
AU575641B2 (en) 1988-08-04
GB2159439A (en) 1985-12-04
FR2563753A1 (fr) 1985-11-08
JPS60244364A (ja) 1985-12-04
JPH0732889B2 (ja) 1995-04-12
FR2563753B1 (fr) 1988-07-15

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