DE3936382A1 - Welded connection between piped and sealing sheets - in which simpler improved weld is achieved by reducing thickness of pipe flange to that of sheet seal - Google Patents
Welded connection between piped and sealing sheets - in which simpler improved weld is achieved by reducing thickness of pipe flange to that of sheet sealInfo
- Publication number
- DE3936382A1 DE3936382A1 DE19893936382 DE3936382A DE3936382A1 DE 3936382 A1 DE3936382 A1 DE 3936382A1 DE 19893936382 DE19893936382 DE 19893936382 DE 3936382 A DE3936382 A DE 3936382A DE 3936382 A1 DE3936382 A1 DE 3936382A1
- Authority
- DE
- Germany
- Prior art keywords
- edge
- welding
- pipe flange
- seal
- thickness
- 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.)
- Withdrawn
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 12
- 238000003466 welding Methods 0.000 claims abstract description 26
- 229920003023 plastic Polymers 0.000 claims abstract description 14
- 239000004033 plastic Substances 0.000 claims abstract description 14
- 238000001125 extrusion Methods 0.000 claims description 8
- 230000007704 transition Effects 0.000 claims description 7
- 239000012528 membrane Substances 0.000 claims description 5
- 230000035515 penetration Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 4
- 238000003801 milling Methods 0.000 abstract description 3
- 239000003673 groundwater Substances 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 230000008030 elimination Effects 0.000 abstract 1
- 238000003379 elimination reaction Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 description 20
- 238000004078 waterproofing Methods 0.000 description 6
- 239000011178 precast concrete Substances 0.000 description 5
- -1 polyethylene Polymers 0.000 description 3
- 238000000227 grinding Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000004243 sweat Anatomy 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000010169 landfilling Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
Classifications
-
- 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
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/40—Applying molten plastics, e.g. hot melt
- B29C65/42—Applying molten plastics, e.g. hot melt between pre-assembled parts
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
- B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
- B29C66/73—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
- B29C66/735—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the extensive physical properties of the parts to be joined
- B29C66/7352—Thickness, e.g. very thin
- B29C66/73521—Thickness, e.g. very thin of different thickness, i.e. the thickness of one of the parts to be joined being different from the thickness of the other part
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D31/00—Protective arrangements for foundations or foundation structures; Ground foundation measures for protecting the soil or the subsoil water, e.g. preventing or counteracting oil pollution
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage; Sky-lights
- E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
- E04D13/0404—Drainage on the roof surface
- E04D13/0409—Drainage outlets, e.g. gullies
- E04D13/0431—Drainage outlets, e.g. gullies with horizontal evacuation over the border of the roof
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage; Sky-lights
- E04D13/15—Trimming strips; Edge strips; Fascias; Expansion joints for roofs
- E04D13/155—Trimming strips; Edge strips; Fascias; Expansion joints for roofs retaining the roof sheathing
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D5/00—Roof covering by making use of flexible material, e.g. supplied in roll form
- E04D5/14—Fastening means therefor
- E04D5/149—Fastening means therefor fastening by welding
-
- 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
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
- B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
- B29C66/43—Joining a relatively small portion of the surface of said articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/10—Building elements, e.g. bricks, blocks, tiles, panels, posts, beams
- B29L2031/108—Roofs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Hydrology & Water Resources (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
Die Erfindung betrifft einen Schweißanschluß einer dünnwandigen Kunststoffabdichtung an eine dickwandige, ebene oder gewölbte Kunststoffplatte, insbesondere an Rohrflansche von Bauwerksanschlüssen oder Durchdringun gen.The invention relates to a welding connection thin-walled plastic seal to a thick-walled, flat or curved plastic plate, especially on Pipe flanges of building connections or penetrations gene.
Ein Anschluß dünnwandiger Abdichtungsbahnen an dickwan dige Kunststoffteile kommt z. B. bei Deponiebasisab dichtungen vor. Deponien sind bei zeitgemäßer Auslegung mit einer Basisabdichtung versehen. Zu der Basisabdich tung gehört eine aus einzelnen Abdichtungsbahnen zusam mengesetzte Kunststoffabdichtung. Die Kunststoffabdich tung verhindert, daß Sickerwasser in den Grundwasserbe reich gelangt.A connection of thin-walled waterproofing membranes to dickwan Dige plastic parts comes z. B. at landfill base seals in front. Landfills are of a contemporary design provided with a basic seal. To the base deviation tion belongs together from individual sealing sheets mixed plastic sealing. The plastic seal tion prevents leachate from entering the groundwater got rich.
Das Sickerwasser entsteht aus Oberflächenwasser. Mit immer neuen Niederschlägen bildet sich neues Sickerwas ser. Dies muß drainiert werden. Dazu sind auf einer Abdichtung Drainagesysteme verlegt. In früherer Zeit war es üblich, in Deponiekörper Schächte einzubringen, von denen mindestens einer als Pumpschacht ausgebildet war. Durch den Pumpschacht wurde das Sickerwasser nach oben befördert. Mit den Schächten wurden extrem schlechte Erfahrungen gesammelt. Die Schächte haben sich in Verlauf der Deponiesetzung verformt. Zum Teil sind die Schächte gekippt und haben die Kunststoffba sisabdichtung perforiert. An neueren Abdichtungen ist deshalb vorgesehen, daß die Sickerwässer über seitliche Rohrschächte abgezogen werden. Die Rohrschächte sind - soweit die Deponien mit stützenden Wällen umgeben sind - in den Wällen eingebaut. Wie bei den älteren im Deponiekörper angeordneten Schächten stellt sich jedoch das Problem des Anschlusses der Abdichtung. Jeder Rohrkörper, auch die Schächte sind mit Anschlußflan schen versehen. Zum Anschluß an Abdichtungsbahnen haben die Flansche eine Kragenform. Der Anschluß soll durch Schweißen erfolgen. Nur sind dicke Anschlußplatten bislang nicht unmittelbar mit dünnen Abdichtungsbahnen unter ausreichender Qualität verschweißbar. Das wird unterschiedlichen Temperaturverläufen und Verformungs verhalten im dicken Material gegenüber dem dünnen Material zugeschrieben. Um gleichwohl ausreichende Schweißfestigkeiten zu erzielen, ist es bekannt, Zwi schenteile einzusetzen. Diese Zwischenteile werden durch Zwischenflansche gebildet. Die Zwischenflansche sind zweiteilig. Sie bestehen aus zwei miteinander verschweißten Ringen. Der eine Ring wird durch Bahnen material gebildet, wie es für die Abdichtung verwendet wird. Der andere Ring wird durch mitteldicke Platten gebildet. Die miteinander verschweißten Ringe werden separat an der Baustelle angeliefert und dort an dem Anschlußflansch des Schachtes oder Rohres verschweißt. Daran schließt sich das Verschweißen der Abdichtungs bahn mit dem dünnen Materialring an. Der Schweißan schluß zwischen den dünnen Materialien erfolgt durch Heißluftschweißen. Der Schweißanschluß des mitteldicken Ringes mit dem Anschlußflansch erfolgt durch Extru sionsschweißung unter Bildung einer Kehl-Naht.The leachate arises from surface water. With new precipitation is always forming new leachate ser. This must be drained. These are on one Sealing drainage systems installed. In early days it was common to insert shafts in landfill bodies, at least one of which is designed as a pump shaft was. The leachate was replenished through the pump shaft promoted above. With the shafts became extreme bad experience. The shafts have deforms in the course of landfilling. Partly the shafts are tilted and have the plastic construction perforated sis seal. On newer seals is therefore provided that the leachate through lateral Pipe ducts are pulled off. The pipe ducts are - as far as the landfills are surrounded by supporting walls - built into the ramparts. As with the older ones in However, manholes arranged in the landfill body arise the problem of connecting the waterproofing. Everyone Pipe body, also the shafts are with connecting flange provided. Have for connection to waterproofing membranes the flanges have a collar shape. The connection should go through Welding done. Only are thick connection plates so far not directly with thin waterproofing membranes weldable with sufficient quality. It will different temperature profiles and deformation behave in the thick material compared to the thin Attributed to material. To be sufficient To achieve sweat resistance, it is known to Zwi insert shear parts. These intermediate parts will be formed by intermediate flanges. The intermediate flanges are in two parts. They consist of two together welded rings. One ring is made up of tracks material formed as used for sealing becomes. The other ring is made of medium-thick plates educated. The rings welded together are Delivered separately to the construction site and there at the Connection flange of the shaft or pipe welded. This is followed by the welding of the waterproofing with the thin material ring. The welding machine conclusion between the thin materials is made by Hot air welding. The welding connection of the medium thick Ring with the connecting flange is made by Extru sion welding to form a fillet weld.
Diese Technik ist sehr aufwendig. Der Erfindung liegt die Aufgabe zugrunde, den Schweißanschluß zu vereinfa chen. Nach der Erfindung wird das dadurch erreicht, daß der dickplattige Anschlußflansch einen vorzugsweise durch Spanabheben dickenreduzierten Rand besitzt, so daß die Randdicke um höchstens 25% vom Dickenmaß der anzuschließenden Kunststoffabdichtung abweicht.This technique is very complex. The invention lies based on the task of simplifying the welding connection chen. According to the invention this is achieved in that the thick-plate connecting flange preferably one has reduced thickness by cutting, so that the edge thickness by at most 25% of the thickness of the plastic seal to be connected deviates.
Vorzugsweise ist der Anschlußflansch-Rand gefräst. Der gefräste Rand besitzt vorzugsweise eine einheitliche Dicke, damit unterschiedliche Anschlußpositionen nicht zu unterschiedlichen Dickenverhältnissen führen. Als Randbreite sind mindestens 120 mm vorgesehen. Ferner ist vom Rand zur übrigen Platte ein konischer oder gewölbt verlaufender Übergang von Vorteil. Der Übergang verhindert Kerbwirkungen. Als Schweißnahtverbindung zwischen dem reduzierten Anschlußflansch-Rand und der Abdichtung ist vorzugsweise eine Extrusionsschweißnaht vorgesehen. Zu der Extrusionsschweißnaht gehört eine Schweißnahtvorbereitung. Der Rand der Abdichtungsbahn wird an der äußersten Kante abgeschrägt, z. B. unter 45 Grad. Das geschieht an der Baustelle durch Schleifen. Nach der Erfindung werden zugleich die Schweißflächen angeschliffen, um Oxidationshäute zu beseitigen, die sich bei längerer Lagerung von Kunststoffmaterial bil den und der Schweißverbindung hinderlich sind.The connecting flange edge is preferably milled. The milled edge preferably has a uniform Thickness, so different connection positions are not lead to different thickness ratios. As The edge width is at least 120 mm. Further is a conical or from the edge to the rest of the plate arched transition is an advantage. The transition prevents notch effects. As a weld connection between the reduced flange edge and the Sealing is preferably an extrusion weld intended. The extrusion weld includes one Weld preparation. The edge of the waterproofing membrane is beveled on the outermost edge, e.g. B. under 45 Degree. This is done at the construction site by grinding. According to the invention, the welding surfaces are at the same time sanded to remove oxidation skins that with longer storage of plastic material bil which and the welded connection are a hindrance.
Beim anschließenden Extrusionsschweißen wird eine min destens 20 mm breite Schweißnaht gelegt und das plasti fizierte Gut zugleich gegen beide Schweißnahtteile gedrückt. Bei einer Neigung des Schweißgerätes in Schweißrichtung bewirkt der Materialaustritt des Extru sionsschweißgerätes dann den Vorschub des Gerätes, ohne daß dem viel geholfen werden muß.In the subsequent extrusion welding, a min at least 20 mm wide weld seam and the plasti Good against both parts of the weld seam at the same time pressed. If the welding machine is inclined in The extru material leaks in the direction of welding Sionsschweißgerätes then the feed of the device without that much needs to be helped.
In der Zeichnung ist in Fig. 1 und 2 ein Schweißan schluß nach herkömmlicher Art , in Fig. 3 ein erfin dungsgemäßer Schweißanschluß dargestellt.In the drawing, in Fig. 1 and 2, a welding circuit according to the conventional type, in Fig. 3, a welding connection according to the invention is shown.
Die Fig. 1 und 2 zeigen den Übergang von einer Deponiebasisabdichtung ohne Drainage in ein Kanalrohr 6. An diesem Übergang ist ein Betonfertigteil 1 vorge sehen. Das Betonfertigteil 1 ist in eine Tonschicht eingebettet, die zusammen mit einer Folien-Abdichtung die Deponiebasisabdichtung bildet. In das Betonfertig teil ist ein Kunststoffrohr 4 eingebettet, das mit einem Steg 5 im Betonfertigteil gehalten ist und den Anschluß an das Kanalrohr 6 bildet. Nach Fig. 1 und 2 haben die beiden Rohre 4 und 6 Wandstärken von 24 mm. Figs. 1 and 2 show the transition from a landfill base sealing without drainage channel in a tube 6. At this transition a precast concrete 1 is seen easily. The precast concrete part 1 is embedded in a clay layer, which together with a foil seal forms the landfill base seal. In the precast concrete part, a plastic pipe 4 is embedded, which is held with a web 5 in the precast concrete part and forms the connection to the sewer pipe 6 . According to Fig. 1 and 2, the two pipes 4 and 6 have a wall thickness of 24 mm.
Das Rohr 4 mündet in einen angeformten Flansch 3. Der Flansch 3 hat die gleiche Wandstärke von 24 mm. Das Material ist Polyethylen.The tube 4 opens into a molded flange 3 . The flange 3 has the same wall thickness of 24 mm. The material is polyethylene.
Das Folienmaterial hat nach Fig. 1 und 2 2,5 mm Dicke. Zur Schweißverbindung des Folienmaterials dient ein Zwischenstück aus einem Polyethylenring 7 mit 50 mm Breite und 10 mm Dicke und ein ringförmiger Material streifen 8 aus dem gleichen Folienmaterial wie das für die Abdichtung der Deponiebasis vorgesehene Folienmate rial. Der ringförmige Materialstreifen 8 ist mit dem Polyethylenring 7 durch Schweißung verbunden. Das Zwischenteil wird an dem in das Betonfertigteil 1 angeformten Flansch 3 durch eine Kehl-Naht 9 im Wege der Schweißung befestigt.The sheet material has in Fig. 1 and 2 2.5 mm thickness. For the weld connection of the film material, an intermediate piece made of a polyethylene ring 7 with a width of 50 mm and a thickness of 10 mm and an annular material strip 8 made of the same film material as the film material provided for sealing the landfill base serve as material. The annular material strip 8 is connected to the polyethylene ring 7 by welding. The intermediate part is fastened to the flange 3 formed in the precast concrete part 1 by means of a fillet weld 9 by way of welding.
Anschließend kann der Materialstreifen 8 problemlos mit dem Folienmaterial 10 der Deponiebasisabdichtung ver schweißt werden.Then the material strip 8 can be easily welded to the film material 10 of the landfill base seal.
Nach Fig. 3 ist das Anschlußrohr statt mit dem Flansch 3 mit einem Flansch 20 versehen. Der Flansch 20 besitzt am Rand eine reduzierte Dicke 21, die durch Abfräsen entstanden ist. Die Dickenreduzierung wird durch Fräsen herbeigeführt. Der Übergang 22 verläuft im Ausführungs beispiel konisch und geht in einem Radius in den Teil 21 über.According to FIG. 3, the connecting tube is provided instead of the flange 3 with a flange 20. The flange 20 has a reduced thickness 21 at the edge, which is created by milling. The thickness is reduced by milling. The transition 22 is conical in the embodiment and merges into part 21 in a radius.
Der abgefräste Rand 21 hat eine Dicke von 3 mm, so daß eine Folienabdichtung 23 der Deponiebasis mit gleicher Dicke sicher an dem Rand 21 verschweißt werden kann. Im Ausführungsbeispiel hat der Rand 21 eine Breite von 200 mm. Der Übergang 22 beträgt 40 mm.The milled edge 21 has a thickness of 3 mm, so that a film seal 23 of the landfill base with the same thickness can be securely welded to the edge 21 . In the exemplary embodiment, the edge 21 has a width of 200 mm. The transition 22 is 40 mm.
Die Verschweißung erfolgt mit einer Extrusionsnaht 24. Der Verschweißung geht eine Abschrägung der Kante der Abdichtung 23 und ein Anschleifen der Schweißflächen an dem Rand 21 und der Abdichtung 23 voraus. Die Abschrä gung und das Anschleifen erfolgt in einem Schleifvor gang mit einer mit Schleifpapier bespannten Schleif scheibe.The welding takes place with an extrusion seam 24 . The welding is preceded by a beveling of the edge of the seal 23 and a grinding of the welding surfaces on the edge 21 and the seal 23 . The beveling and sanding is carried out in one sanding process with a sanding disc covered with sandpaper.
Zur Extrusionsschweißung wird ein handelsübliches Ex trusionsschweißgerät verwendet. Das Extrusionsschweiß gerät besitzt einen Extruder, dem das Schweißmaterial in Form einer Schnur zugeführt wird. Der Extruder ist zugleich mit einem Heißluftgerät versehen. Das Heiß luftgerät hat die Aufgabe, das Schweißmaterial zu erwärmen und die Schweißflächen vorzuheizen.A commercially available Ex is used for extrusion welding Fusion welding machine used. The extrusion sweat device has an extruder, which the welding material is fed in the form of a cord. The extruder is at the same time provided with a hot air device. The hot The air device has the task of closing the welding material warm up and preheat the welding surfaces.
Im Extruder wird das Material plastifiziert und vorne aus einer Düse herausgedrückt.The material is plasticized in the extruder and at the front pushed out of a nozzle.
Claims (6)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19893936382 DE3936382A1 (en) | 1989-06-09 | 1989-11-02 | Welded connection between piped and sealing sheets - in which simpler improved weld is achieved by reducing thickness of pipe flange to that of sheet seal |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE8907063U DE8907063U1 (en) | 1989-06-09 | 1989-06-09 | |
| DE19893936382 DE3936382A1 (en) | 1989-06-09 | 1989-11-02 | Welded connection between piped and sealing sheets - in which simpler improved weld is achieved by reducing thickness of pipe flange to that of sheet seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE3936382A1 true DE3936382A1 (en) | 1990-12-13 |
Family
ID=25886652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19893936382 Withdrawn DE3936382A1 (en) | 1989-06-09 | 1989-11-02 | Welded connection between piped and sealing sheets - in which simpler improved weld is achieved by reducing thickness of pipe flange to that of sheet seal |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE3936382A1 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3445186A1 (en) * | 1983-12-13 | 1985-06-20 | Eternit Ag, 1000 Berlin | Water gulley |
-
1989
- 1989-11-02 DE DE19893936382 patent/DE3936382A1/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3445186A1 (en) * | 1983-12-13 | 1985-06-20 | Eternit Ag, 1000 Berlin | Water gulley |
Non-Patent Citations (1)
| Title |
|---|
| JP 63-29574 A. In: Patents Abstracts of Japan, Sect. M, Vol. 13 (1989), Nr. 514 (M 894) * |
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