DE4339291A1 - Welding metal sieve to plastic frame - Google Patents

Welding metal sieve to plastic frame

Info

Publication number
DE4339291A1
DE4339291A1 DE19934339291 DE4339291A DE4339291A1 DE 4339291 A1 DE4339291 A1 DE 4339291A1 DE 19934339291 DE19934339291 DE 19934339291 DE 4339291 A DE4339291 A DE 4339291A DE 4339291 A1 DE4339291 A1 DE 4339291A1
Authority
DE
Germany
Prior art keywords
plastic frame
mesh material
plastic
screen
welding metal
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Withdrawn
Application number
DE19934339291
Other languages
German (de)
Inventor
Helmut Gschweng
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.)
Individual
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Priority to DE19934339291 priority Critical patent/DE4339291A1/en
Publication of DE4339291A1 publication Critical patent/DE4339291A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
    • B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
    • B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
    • B07B1/48—Stretching devices for screens
    • 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
    • B29C65/44—Joining a heated non plastics element to a plastics element
    • 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
    • B29C66/53—Joining single elements to tubular articles, hollow articles or bars
    • B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
    • B29C66/5346—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J5/00—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers
    • C09J5/02—Adhesive processes in general; Adhesive processes not provided for elsewhere, e.g. relating to primers involving pretreatment of the surfaces to be joined
    • 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
    • B29C66/74—Joining plastics material to non-plastics material
    • B29C66/742—Joining plastics material to non-plastics material to metals or their alloys
    • 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
    • B29L2012/00—Frames
    • 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
    • B29L2031/737—Articles provided with holes, e.g. grids, sieves

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Laminated Bodies (AREA)

Abstract

A metallic sieve material is applied to a plastic frame by welding to allow adhesive bonding with an increased temp. difference between the pretreated plastic frame (cooled to well below room temp.) and the metallic sieve material (heated and stretched).

Description

Um grundsätzlich Kunststoffrahmen mit metallischen Sieben dauerhaft und zur Erreichung definierter Siebspannungen, innerhalb der technisch-produktionsbedingten Toleranzen, wird zur Vermittlung der Verklebbarkeit Kunststoff/Metall zuerst ein metallisches Sieb in den Kunststoffrahmen eingeschweißt und dann
wird das vorerwärmte und vorgespannte metallische Sieb mit Sekundenkleber mit dem stark abgekühlten Kunststoffrahmen verklebt.In order to fundamentally plastic frames with metallic screens permanently and to achieve defined screen tensions within the technical production-related tolerances, a metallic screen is first welded into the plastic frame and then to convey the bondability plastic / metal
the pre-heated and pre-stressed metallic sieve is glued to the strongly cooled plastic frame with super glue.

Durch die definierte Abkühlung des Kunststoffrahmens und die Erwärmung und Vorspannung des zu verklebenden Siebes wird eine dauerhafte Verklebung bei gleichzeitiger dauerhaften Siebspannung erreicht. Due to the defined cooling of the plastic frame and the heating and pre-tensioning the screen to be glued permanent gluing with permanent screen tension reached.  

1. seitherige technische Probleme1. Technical problems since then

1.1 werden metallische Siebnetze mittels Spannringen mechanisch aufgespannt ist es sehr schwer eine gute und stabile Siebspannung zu erhalten.1.1 metallic sieve nets are mechanically stretched using tension rings it is very difficult to get a good and stable fabric tension.

1.2 werden metallische Siebnetze durch thermisches Verschweißen aufgespannt, wird zwar eine gute Klebeverbindung Kunststoff/Metall erreicht, die Siebspannung ist jedoch auch bei starker Vorspannung des Siebnetzes oft unbefriedigend bis schlecht.1.2 metallic sieve nets are stretched by thermal welding, a good bond between plastic and metal is achieved, however, the fabric tension is even with strong pre-tensioning of the Screen mesh often unsatisfactory to poor.

1.3 eine gute und stabile Verklebung scheitert an der schlechten Verklebefähigkeit verschiedener Kunststoffe mit Metall.1.3 A good and stable bond fails due to the poor bondability various plastics with metal.

Durch das neue Verfahren sollen durch geeignete Verfahrens-Schritte und -Vorrichtungen oben aufgeführte Schwierigkeiten behoben werden.The new process is intended to be carried out through suitable process steps and devices resolved above difficulties.

2. Lösung der Schwierigkeiten durch neues Siebbespann-Verfahren2. Solving the difficulties with a new screen covering process

2.1.1 Siebnetzmaterial wird mit dem Kunststoffrahmen verschweißt, am Rahmen überstehendes Siebnetzmaterial wird entfernt. Mit dem Rahmen verschweißtes Siebnetzmaterial wird durch Schleifen und mit geeignetem Lösungsmittel gereinigt, - damit die spätere Verklebung nicht gestört wird -.2.1.1 Mesh material is welded to the plastic frame on the frame Any excess mesh material is removed. Screen mesh material welded to the frame is made by grinding and cleaned with a suitable solvent - so that the later gluing is not disturbed -.

2.1.2 Kunststoffrahmen wird stark abgekühlt und damit ein Zusammenschrumpfen erreicht, - je nach Ausdehnungs-Koeffizient und Temperaturdifferenz in steuerbarem Umfang -.2.1.2 The plastic frame is cooled down considerably and shrinks reached - depending on the expansion coefficient and temperature difference to a taxable extent -.

2.2 Siebnetzmaterial wird vorgespannt, erwärmt und entsprechend der eintretenden Ausdehnung nachgespannt.2.2 Mesh material is pre-tensioned, heated and in accordance with the incoming Expansion stretched.

2.3 mit Schnellkleber wird das erwämte und vorgespannte Siebnetzmaterial mit dem nach 2.1 vorbehandelten und abgekühlten Kunststoffrahmen verklebt. Nach erfolgter stabilen Verklebung wird überstehendes Siebnetzmaterial entfernt.2.3 with quick glue the heated and pre-tensioned mesh material glued to the pre-treated and cooled plastic frame according to 2.1. After the stable bonding has been carried out, the screen mesh material protrudes away.

Die stabile Schnellverklebung ergibt bei Temperaturangleichung des sich ausdehnenden Kunststoff-Rahmens, - durch zunehmende Erwärmung - und des sich zusammenziehenden metallischen Siebnetzes, - durch Abkühlung -, entsprechend den Ausdehnungskoeffizienten aus den gegebenen Temperaturdifferenzen die angestrebte Siebnetz-Spannung. The stable quick glue results when the temperature is adjusted expanding plastic frame, - by increasing warming - and the contracting metallic sieve net, - by cooling -, according to the expansion coefficient from the given Temperature differences the desired sieve net tension.  

3. Lösung der Schwierigkeiten durch dem Siebbespann-Verfahren angepaßte Siebbespann-Vorrichtungen3. Solution of the difficulties adapted by the screen covering method Screen covering devices

3.1 Erhitzungstisch mit Andrück-Vorrichtung
Siebnetzmaterial auf Erhitzungstisch auf Anschmelztemperatur des Kunststoffs erhitzen, Kunststoffrahmen andrücken, verschweißen. Abkühlen lassen, überstehendes Siebmaterial entfernen. Trennfolie zwischen Erhitzungstisch-Siebmaterial besteht aus Kunststoffmaterial mit erheblich höherer Anschmelztemperatur als das Kunststoff-Rahmenmaterial (eventuell Teflon).3.1 Heating table with pressure device
Heat the sieve net material on the heating table to the melting temperature of the plastic, press on the plastic frame, weld. Allow to cool, remove excess sieve material. The separating film between the heating table screen material consists of plastic material with a significantly higher melting temperature than the plastic frame material (possibly Teflon).

3.2 Tiefkühlvorrichtung
Kunststoffrahmen - nach 2.1.1 - stark unterkühlen, - auf definierte Minus-Temperaturen -.3.2 freezer
Plastic frame - according to 2.1.1 - very cold, - to defined minus temperatures -.

3.3 Verklebetisch mit Spannvorrichtung
Siebnetzmaterial auf Verklebetisch auf definierte Temperatur erwärmen - dabei erheblich unter Anschmelztemperatur des Kunststoff-Rahmenmaterials bleiben! Siebnetzmaterial nachspannen.3.3 Gluing table with clamping device
Heat the screen mesh material on the gluing table to a defined temperature - stay well below the melting temperature of the plastic frame material! Retension the mesh material.

Mit Schnellkleber (Sekunden-Kleber) wird das erwärmte und nachgespannte Siebnetz mit dem vorbehandelten und unterkühlten Kunststoffrahmen stabil verklebt. Trennfolie zwischen Verklebetisch und Siebnetzmaterial besteht aus nicht mit Sekundenkleber verklebbarem Kunststoff. Rollen-Siebnetzmaterial mit Kleber-Verklebetisch-Trennfolie dazwischen ist reguläre Lieferware.With quick glue (super glue) the heated and retensioned mesh with the pre-treated and supercooled plastic frame stably glued. Separating film between the gluing table and mesh material consists of plastic that cannot be glued with superglue. Roll screen mesh material with adhesive-adhesive table separating film in between is a regular delivery item.

Claims (2)

1. Verfahrensschutz
  • a. für den Verfahrensablauf durch Aufbringen von metallischem Siebnetzmaterial auf den Kunststoffrahmen durch Verschweißen um eine Verklebung zu ermöglichen
  • b. für den Verklebevorgang bei höherem Temperaturunterschied zwischen vorbehandeltem Kunststoffrahmen - stark unterkühlt - und aufzuspannenden metallischen Siebnetzmaterial - erwärmt und vorgespannt -.
1. Process protection
  • a. for the process sequence by applying metallic mesh material to the plastic frame by welding to enable gluing
  • b. for the gluing process at a higher temperature difference between pretreated plastic frame - strongly supercooled - and metal mesh material to be stretched - heated and pretensioned -.
2. Schutz für den verfahrensbedingten Gerätebedarf.2. Protection for procedural equipment needs.
DE19934339291 1993-11-18 1993-11-18 Welding metal sieve to plastic frame Withdrawn DE4339291A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19934339291 DE4339291A1 (en) 1993-11-18 1993-11-18 Welding metal sieve to plastic frame

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19934339291 DE4339291A1 (en) 1993-11-18 1993-11-18 Welding metal sieve to plastic frame

Publications (1)

Publication Number Publication Date
DE4339291A1 true DE4339291A1 (en) 1995-05-24

Family

ID=6502835

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19934339291 Withdrawn DE4339291A1 (en) 1993-11-18 1993-11-18 Welding metal sieve to plastic frame

Country Status (1)

Country Link
DE (1) DE4339291A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2853561A1 (en) * 2003-04-14 2004-10-15 Gantois Ets Filter element tensioning procedure consists of deforming supporting frame to reduce its diameter and expanding it after fixing filter element
DE102012219787A1 (en) 2011-11-25 2013-05-29 Schaeffler Technologies AG & Co. KG Friction clutch e.g. dual clutch, has friction linings twisted between counter pressure plate and pressing plate, and energy storage formed by annular torque transfer spring, which connects pressing plate and housing with each other
DE102013103417A1 (en) * 2013-04-05 2014-10-23 Innovations- und Informationszentrum Schneiden und Fügen e.V. Method and device for producing a joint connection between a metal part and a plastic part
DE102015010624B3 (en) * 2015-08-14 2017-01-05 Audi Ag Wasserablauftülle for a body of a motor vehicle

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2853561A1 (en) * 2003-04-14 2004-10-15 Gantois Ets Filter element tensioning procedure consists of deforming supporting frame to reduce its diameter and expanding it after fixing filter element
DE102012219787A1 (en) 2011-11-25 2013-05-29 Schaeffler Technologies AG & Co. KG Friction clutch e.g. dual clutch, has friction linings twisted between counter pressure plate and pressing plate, and energy storage formed by annular torque transfer spring, which connects pressing plate and housing with each other
DE102013103417A1 (en) * 2013-04-05 2014-10-23 Innovations- und Informationszentrum Schneiden und Fügen e.V. Method and device for producing a joint connection between a metal part and a plastic part
DE102015010624B3 (en) * 2015-08-14 2017-01-05 Audi Ag Wasserablauftülle for a body of a motor vehicle

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Legal Events

Date Code Title Description
8139 Disposal/non-payment of the annual fee
8170 Reinstatement of the former position
8139 Disposal/non-payment of the annual fee