DE1778148A1 - Process for the production of lightweight construction rods with internal reinforcements - Google Patents
Process for the production of lightweight construction rods with internal reinforcementsInfo
- Publication number
- DE1778148A1 DE1778148A1 DE19681778148 DE1778148A DE1778148A1 DE 1778148 A1 DE1778148 A1 DE 1778148A1 DE 19681778148 DE19681778148 DE 19681778148 DE 1778148 A DE1778148 A DE 1778148A DE 1778148 A1 DE1778148 A1 DE 1778148A1
- Authority
- DE
- Germany
- Prior art keywords
- production
- lightweight construction
- internal
- rods
- construction rods
- 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.)
- Pending
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/06—Fibrous reinforcements only
- B29C70/10—Fibrous reinforcements only characterised by the structure of fibrous reinforcements, e.g. hollow fibres
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C3/29—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces built-up from parts of different material, i.e. composite structures
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Laminated Bodies (AREA)
Description
Verfahren zur Herstellung von Leichtbaustäben mit inneren Versteifungen.Process for the production of lightweight construction rods with internal reinforcements.
Es'ist bekannt,stabförmige Bauelemente z.B0Rohre oder Profile unter Verwendung von glasfaserverstärktem Kunststoff,derart herzustellen,dass Stränge von kunststoffgetränkten Glasfasern auf einen Kern von geeignetem Material z.B.Schaumstoff aufgewickelt werden oder kunstharzgetränkte Gewebestreifen allein oder mit anderen Formen von Kunstharzgetränkten Faserstoffen auf solche Kerne aufgebracht und hier ausgehärtet werdendes ist auch bekannt Hohlkörper aus faserverstärktem Kunststoff auszuschäumen um z.B. grössere Festigkeit gegen das Zusammendrücken zu erreichen.It is known to use rod-shaped components such as pipes or profiles under Use of glass fiber reinforced plastic, such as to manufacture strands of plastic-soaked glass fibers on a core of suitable material, e.g. foam be wound up or synthetic resin-soaked fabric strips alone or with others Forms of synthetic resin soaked fiber applied to such cores and here Hollow bodies made of fiber-reinforced plastic are also known to be cured Foam in order, for example, to achieve greater strength against compression.
In vielen Fällen ist es jedoch erwünscht an genau bestimmte Stellen des Hohlkörpers hochfeste Versteifungen einzubringen, wobei die Zwischenräume zwischen den Versteifungen von untergeordneter Bedeutung sind¢Diese Versteifungen können in Form von z.B.senkrecht oder schräg zur Achse stehenden Wänden,Spiralsträngen,Spiralbändern und Falt- oder Wellbändern o.ä.bestehen.Die Herstellung solcher Leichtbaustäbe in wirtschaftlicher Weise zu ermöglichen ist Gegenstnad der Erfindung.In many cases, however, it is desirable to go to specific places of the hollow body to introduce high-strength stiffeners, with the spaces between The stiffeners are of minor importance ¢ These stiffeners can in the form of, for example, walls that are perpendicular or inclined to the axis, spiral strands, spiral bands and folding or corrugated tapes or similar. The production of such lightweight rods in Making it possible in an economical manner is the subject matter of the invention.
Bei Rohren oder Profilen beliebigen Querschnitts die z. BOsenkrecht zur Achse stehende Versteifungswände haben sollen,werden nach der Erfindung,dem Stabinnenquerschnitt entsprechende oder im Querschnitt kleihere Stäbe aus z.B.Leichtschaum oder einem anderen geeigneten 3ff Stoff hergestellt deren Länge dem Abstand von einer Querwand zur nächsten entspricht. Aus diesen Stäben und den jeweils zwischen die Stabenden eingebrachten Querwänden wird ein beliebig langer,oder ein, sich durch fortlaufendes Ansetzen von Stäben und Querwänden kontinuierlich verlängernder Stab,hergestel2t Hierbei können die Kopfflächen der Stäbe mit den Querwänden verleimt oder nur durch äusseren Druch zusammengehalten werden. Dieser,aus Stababschnitten und dazwischen befindlichen Querwänden bestehende Kern wird mit z. B. kunstharzgetränkten Glasfasern oder Geweben z.B.durch Ziehen umgeben,derart,dass die so sich ergebende Aussenwand fest mit den Kanten der Querwände verbunden ist.For pipes or profiles of any cross-section, the z. BO perpendicular should have stiffening walls standing to the axis, according to the invention, the Rod internal cross-section corresponding or smaller rods made of e.g. light foam or another suitable 3ff fabric whose length is the distance of one transverse wall corresponds to the next. From these rods and each between the transverse walls introduced into the bar ends are of any length, or one that extends through continuous attachment of bars and transverse walls continuously lengthening bar, manufactured Here, the top surfaces of the bars can be glued to the transverse walls or only through outer pressure are held together. This one, made of rod sections and in between located transverse walls existing core is with z. B. synthetic resin impregnated glass fibers or tissues, e.g. surrounded by pulling, in such a way that the resulting outer wall is firmly connected to the edges of the transverse walls.
So ergibt sich ein Bauelement das leicht und von hoher Festigkeit ist.The result is a component that is light and of high strength is.
Sinngemäße kann auch mit anderen Versteifungen verfahren werden.The same can be done with other stiffeners.
Sollen z.B. spiralig verlaufende Stränge als Versteifung dienen, so wird man sie auf einen entsprechenden Kern aufwickeln,derert, dass sie auf dem Kern aufliegen oder sich z. B. durch Anwendung von Druck oder Zugspannung soweit in ihn einbetten,dass das Profil unverändert bleibt. Sollen z.B.Spiralflächen oder gefaltete oder gewellte Bahnen als Versteifung dienen, so kann man die Zwischenräume atisschäumen,z03.unter Benutzung einer Form die dem In@@nquerschnitt des zu versteifenden Hohlkörpers entspricht. Anstelle von Leichtschaum können glatte oder gefaltete Streifen aus z.B.Papier oder einem anderen geeigneten Stoff verwendet werden auf die die Versteifungen aufgeklebt oder in die sie eingefaltet werden. Oder auch Formkörper aus diesen Stoffen die Abstand und Lage der Versteifungen fixieren und mit diesen zusammen das Stabinnere ganz oder tei@-weise ausfüllen.Auch Profile und Rohre mit z.B.eingesetzten Versteifungen können als Träger dienen und z.B.miteingezogen werden.If, for example, spirally running strands are to serve as stiffening, so they will be wound on a corresponding core, so that they are on the core rest or z. B. by applying pressure or tension as far in him embed so that the profile remains unchanged. Should e.g. spiral surfaces or folded or corrugated webs serve as stiffening, so the spaces can be foamed, z03.below Use of a shape that corresponds to the cross-section of the hollow body to be stiffened. Instead of lightweight foam, you can use smooth or folded strips of e.g. paper or Another suitable material can be used to which the stiffeners are glued or into which they are folded. Or moldings made from these substances Fix the distance and position of the stiffeners and, together with them, the inside of the rod Fill in completely or partially, including profiles and tubes with, for example, inserted stiffeners can serve as carriers and e.g. be drawn in.
In der Zeichning zeigt Fig 1 einen Träger aus dreieckigen Schaumstoffabsohnitten a mit dazwischen befindlichen Versteifungsplatten b.Fig 2 zeigt als Träger ein gefaltete@,offenes Profil c in das die Versteifungsplatten d eingesetzt sind. Fig 9 zeigt als Träger ein gefaltetes,an einer Seite teilweise offenes Profil e mit eingesetzten Versteifungswänden foFig 4 zeigt als Träger einen Rundstab aus Schaumstoff g mit einem darin eingebetteten, schraubenförmig gekrümten Band aus Versteifungsmaterial h. Fig 5 und 6 zeigen Leichtbaustäbe mit schleifenförmig gefaltetem Band aus Yersteifungsstoff.In the drawing, Fig. 1 shows a carrier made of triangular foam parts a with stiffening plates in between b.Fig 2 shows a folded @, open as a carrier Profile c in which the stiffening plates d are inserted. 9 shows as a carrier a folded profile, partially open on one side, with inserted stiffening walls foFig 4 shows a round rod made of foam g with an embedded helically curved band of stiffening material h. Fig. 5 and 6 show lightweight construction rods with a ribbon made of stiffening fabric folded in a loop.
Die Scheitel der Falten laufen quer zur Stabachse.The vertices of the folds run transversely to the rod axis.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19681778148 DE1778148A1 (en) | 1968-04-02 | 1968-04-02 | Process for the production of lightweight construction rods with internal reinforcements |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19681778148 DE1778148A1 (en) | 1968-04-02 | 1968-04-02 | Process for the production of lightweight construction rods with internal reinforcements |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1778148A1 true DE1778148A1 (en) | 1971-10-14 |
Family
ID=5703302
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19681778148 Pending DE1778148A1 (en) | 1968-04-02 | 1968-04-02 | Process for the production of lightweight construction rods with internal reinforcements |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE1778148A1 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1196534B (en) * | 1962-01-24 | 1965-07-08 | Waldemar Mamleew | Dismountable double hull rowboat |
EP0034453A1 (en) * | 1980-02-09 | 1981-08-26 | The British Petroleum Company p.l.c. | Process and apparatus for the manufacture of cellular composites |
-
1968
- 1968-04-02 DE DE19681778148 patent/DE1778148A1/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1196534B (en) * | 1962-01-24 | 1965-07-08 | Waldemar Mamleew | Dismountable double hull rowboat |
EP0034453A1 (en) * | 1980-02-09 | 1981-08-26 | The British Petroleum Company p.l.c. | Process and apparatus for the manufacture of cellular composites |
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