DE3314457A1 - DEVICE AND METHOD FOR FRICTION WELDING AND ITEMS OBTAINED THEREOF - Google Patents

Description

PATENT LAWYERS

dr. V. SCHMIED-KOWARZIK · dr. P. WEINHOLD · dr. P. BARZ · monchin dipping. G. DANNENBERG · dr. D. GUDEL- dipl-ing. S. SCHUBERT · Frankfurt

APPROVED REPRESENTATIVES AT THE EUROPEAN PATENT OFFICE

GROSSE ESCHENHEIMER STR. 39 6OOO FRANKFURTAM MAIN 1

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TELEPHONE: <O6I1) 281134 + 287014 TELEGRAMS: WIRPATENTE TELEX: 4I3II0

April 20, 1983 S S / Ar

Cosden Technology, Inc.
West, 10th Street,
Wilmington, Delaware
United States

Device and method for friction welding and objects manufactured therefrom

331U57

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description

The invention relates to a device for rib welding according to the preamble of claim 1.

It also relates to at least one method for welding two thermoplastic Kunstsioifabschni1 te after the preamble of claim 18.

After all, it affects someone with the facility or " object manufactured according to the process. j

According to the invention, two similarly designed! Parts, especially upper and lower sections of the tank, Made of thermoplastic material, hermetically sealed to form a container using the friction welding principle will.

According to the prior art, a method for welding container sections into a single container is known, which is directed to thermoplastic containers of cylindrical shape "which are

Rotate speeds against each other in order to achieve the against-I
! lateral joining of the two sections required heat

to be generated by friction (DE-PS 1 454 958,

DE-PS 1 679 926). This procedure will

commonly referred to as friction welding.

While the well-known friction welding process is opposite chemical bonding, gluing and heat sealing by means of Lasers, electron beams, radio waves and electric Devices bring advantages, they have the disadvantage of being limited to cylindrical connections. Obviously, a friction welding of two non-

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cylindrical container sections do not succeed because they do not have any surfaces during the mutual Relative rotational movement would remain in contact.

The invention is therefore based on the object of overcoming this limitation of rotary friction welding, by providing a device and a method for friction welding containers made of thermoplastic material with non-cylindrical connecting sections will.

This object is achieved by the inventions specified in the characterizing parts of claims 1 and 18.

The principle is that there is an oscillating or swinging movement instead of a uniform rotational movement takes place between the two sections to be connected in order to generate the necessary frictional heat to form mutual joining of the two sections. The invention is non-rotationally symmetrical for a large number of Sections, but can also be used for cylindrical sections2.

The invention is explained below with reference to a drawing with 8 figures, in which show:

Figures 1-3 are side elevational views in section of three different container connections which can be made using the present invention;
Fig. 4 is a partial side view of a device for

Oscillation welding with low frequency;

Fig. 5 is a schematic view of an air-powered α Rotary welding arrangement when using the device according to FIG. 4;

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Fig. 6 is a partial side view of a device for

Oscillation welding with high frequency? 7 shows a schematic representation of the arrangement for rotation welding with air and power supply for the device according to FIG. 6, and FIG. 8 is a schematic plan view of the rotating

Feed and discharge system for the device for oscillation welding,

The present invention represents a further development (US Pat. Nos. 3,499,068 and Re 29,448) of a known device Reference is made to this figure. To facilitate understanding of the present invention, reference is made to it on only one station of a system with several such stations. With the exception of the The only further development disclosed is the remainder of the container manufacturing system according to the invention essentially the same as in the reference patents =

With regard to FIG. 4, the only station 10 of the welding system 11 is now shown in a side view. the The only station is a typical example of the others included in the rotation welding system Stations. The station includes an upper roller-mounted support structure 12 and an upper cam head 13. The lower support structure 14 is supported by roller tappets 16 in a lower cam structure 15. The upper structure 12 is fastened above the roller tappet 17 in the cam head 13.

The upper cam head 13 as a whole consists of a substantially circular vertical cam plate 18 with a peripheral cam channel 19 formed therein

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The cam channel 19 runs around the circumference of the cam head 13 and serves to accommodate the roller tappet 17 in FIG relatively full engagement in it. The cam channel 19 runs vertically up and down as shown at 20 to to result in a controlled vertical movement of the support structure as it rotates around the cam head 13.

The lower cam assembly 15 also includes a peripheral cam channel 21 which extends around the generally circular The cam head 15 revolves and serves for the rotatable reception of the cam follower 16 therein. The cam channel 21 runs also vertically up and down to allow a vertical movement of the lower structure 14 with respect to the upper structure 12 to enable.

The lower structure 14 as a whole consists of a vertical spindle bearing 22 on which a lower tool 23 for receiving and firmly clamping the lower part of the container to be connected is attached. The tool 23 preferably has an upwardly open inner cavity, the shape of which generally with the shape of the the container base to be connected fits together. Furthermore, the tool 23 has conventional means, such as a Vacuum system for optionally clamping the lower part of the container.

The upper carrier head 12 is via the shaft 24 with the cam follower 17, which is rotatably mounted on the shaft 24, connected. Furthermore, an air oscillator is on the carrier head 12 25 attached, which acts via an articulated connection 26 on an oscillating membrane 27, which in turn is firmly attached to the carrier head 12. The oscillator 25 has a sliding shaft extending downward therefrom 28, with which an upper tool spindle 29 with a

j 5 attached upper tool 30 is connected. The ! The tool spindle 29 passes through an air bearing 31 built into a bearing housing 32 fixedly attached to the carrier head 12. The air bearing 31 allows vertical sliding ^: movement between the spindle 29 and the carrier structure ^; 10 to- The upper tool 30 has conventional means! like a vacuum device for firmly gripping the lower part to be connected to the lower part held in the tool 23. Tank top. An air supply source 33 supplies air to the bearing 31, a second air supply source 34 to the oscillator 25 and a third air supply source 35

■ 'the diaphragm 27. The vibrating diaphragm 27 is with the oscillator 25 connected in such a way that the amplitude of the oscillatory movement generated therein is adjustable.

In typical operation, a pair of container tops and bottoms are separated from a stack by means of a separate one The deinterleaving device (not shown) is removed and passed through various conveyor systems, so that a The lower part is fastened in the tool 23 and an upper part in the upper tool 30. The movement of the carriers 12 and around the circular cam heads 13 and 15 leads to a vertical movement between the tools 23 and 30, whereby

the container parts are brought close together. If the support structures 12 and 14 running as a unit in a circle around the cam heads 13 and 15 have a predetermined ^! Position with respect to the cam channels 19 and 21 have reached, so the tools 23 and 30 will be in their on

■ have moved to the next adjacent positions and thus Wrestle the upper and lower parts of the container in mutual contact. Simultaneously with joining of the container upper and lower parts is supplied with air to the air oscillator 25 via the pipe 34, which is a low frequency vibration the upper one held in the tool 30

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Container results within the clamped in the tool 23 lower container part, so that between the two Sufficient heat is generated to form a hermetic connection between them. the number of vibrations required to establish the connection depends on various sizes, including the type of plastic used in the containers as well the container size and the frequency and amplitude of the vibrations. These are available to the operator before setting up of the machines known, and the time and frequency of the vibrations are given so that at the moment The oscillations stop when the bond begins, so that the container parts can enter into a good bond. Of the Air oscillator stops the vibrations in the lowest position so that the container parts are fully welded are. Shortly after the vibrations have ceased and the bond has been established, the support structures 12 and 14 by their movement as a result of the engagement of the cam followers 16 and 17 in the cam channels 19 and 21 moved apart vertically around the cam heads 13 and 15 and allow removal of the welded ones Container parts. These are then transported away from the welding system by conventional means.

FIG. 5 shows, in conjunction with FIG. 4, a schematic Representation of the air-driven rotation welding with air supply pipes 33, 34 and 35 connected to them. A rotation weld 40 with an air supply outlet is intended 41 for connection to the membrane supply pipe 35, a second to the air oscillator supply pipe 34 connectable air supply opening 42 and a third, with the air bearing supply pipe 33 connectable air supply opening 4 3 are illustrated. When the support structures 12 and 14 are rotated about their cam heads 13

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or 15, the air supply openings 41-43 come with the

j different supply pipes connected, so that the

various air-operated components of the system for

be supplied with enough air at the right time »

Referring to Fig. 6, the second embodiment of the Invention discussed which ationsschweissung for high frequency oscillation of container parts is particularly useful. In this embodiment the support structure is the first Embodiment by a high-frequency carrier structure 100 replaced. This is attached to similar cam heads 13 and 15 by means of roller tappets 17 and 16. The structure

100 consists of an upper support body 101 and a lower roller body 102. On the upper tool body

101 a mounting bracket 103 is arranged on which a in a vertical plane substantially perpendicular to the

Cam plate 13 lying ultrasonic transducer 104 is attached. The electrically operated transmitter 104 is connected to a power source via an electrical line 105. At the lower end of the encoder 104 there is an articulated connection 106 which connects an upper spindle 107 to the encoder. The spindle 107 is supported, oriented for vertical sliding, in an air bearing 108 attached to the body 101. A tool 109 holding the upper container in place is attached to the lower end of the spindle 107. The holding tool 109 preferably has an interior cavity of the general shape of the upper container part to be welded. The lower structure consists of ^! a lower spindle mounted on a support block 102

110 with a tool attached to its top 111 to hold the lower container in place. The tool

111 has an inner cavity of a shape similar to the lower part of the plastic container to be welded

The tools 109 and 111 have conventional means for Clamping to container sections.

In typical operation, the two carrier assemblies, representing a single station 100, rotate about their cam plates 13 and 15 with the roller tappets 17 and 16 engaging in the cam channels 20 and 16, respectively. This rotary movement and the simultaneous cam action of the station arrangement revolving around the plates 13 and 15 lead to perpendicular movement of the upper and lower spindles to and from each other. At a time during this process, when the upper and lower tools 109 and 111 are at a distance, is through in the state of Technique conventional means a plastic container top 1 inserted into the tool 109 and a plastic container lower part inserted into the tool 111. Further movement of the Cam follower in the cam channels is used to move the upper and lower spindle towards each other until the Plastic container upper and lower sections come into fitting contact. At this point the giver is over the line 105 is supplied with electric power, causing a high frequency oscillation of the upper spindle 107 occurs, which in turn causes the upper plastic container to vibrate relative to the lower one, so that Frictional forces occur, which lead to high heat generation and subsequent welding of the upper and lower containers -Subsections to form a hermetic seam lead. The continued movement of the assembly around the cam plates spreads the upper and lower spindles then apart so that the welded container unit can be removed from the upper and lower tool by known means.

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! 5 Fig. 7 shows a schematic representation of a Rotation welding close to the central longitudinal axis of the overall structure. In Fig. 7 are the electrical supply circuits indicated at 112 and 113. The air supply pipe for the air bearing 108 is equipped with an air

.10 rotational welding 114 connected. In addition, conventional means, such as vacuum or mechanical devices, be provided in tool holders 109 and 111 to hold the plastic containers therein during the To record the vibration welding process.

8 shows a schematic plan view of a feed device 200 for the welding system. The feeding system consists of a rotatable input such as a star wheel 201, which delivers the containers to the various stations 10, and the output wheel 202, which is a star wheel for Includes removal of the welded container after completion of the welding process. The vibration welding system 11 with several stations is shown with ten individual welding stations 10 shown.

Figures 1-3 illustrate various connections that themselves using the present attachment and more rigid Have plastic container parts welded.

: FIG. 1 shows a partial cross-sectional view of an upper container part 301 which is connected to a lower container part 302 is merged. This type of connection is commonly referred to as a "pressure shoe" connection. The outside diameter of the lower part 302 is larger by tenths of a millimeter than the inner diameter of the upper part 301.

! The part 301 is pushed onto the part 302 'for airtight fit, and the vibration between the two parts leads to sufficient melting of the thermoplastic material due to the frictional heat so that

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a tight hermetic connection is formed between. Figure 2 illustrates a partial side view of a fuse link in a partial section between two plastic objects, such as two container parts or a container wall and a container bottom. This type of connection can referred to as an "energy directed" connection. The side wall 401 thereby becomes a container section oscillates between upwardly extending webs 402 and 403 of a plastic bottom section 404. Of the Wall section 401 preferably fits between the upper webs 402 and 403 with a slight excess enough frictional heat to connect the floor section to be delivered with the wall 401.

3 illustrates an alternative embodiment of the clipping function of the upper tool 501 on a container part 502. The container part 502 is intended to be welded to the lower container part 503 by friction. at This embodiment engages a wedge-shaped, with eini first, on the upper cam plate 13 disposed on the cam track bracket 504 connected to the container member 502. The link 504 is wedge-shaped with a divergent orientation at the lower end, and is slidable Adjusting ring 505 is arranged around the outer circumference of the wedge-shaped Kl c'irimgl i eds. A second, on dor oLurei.

Cam plate arranged Nockon track controls the vertical Downward movement of the wedge link 505 onto the wedge link 504 to compress the container part 502 inward. The timing of the first and second The cam track on the upper cam member is such that the adjusting ring 505 is used to depress the container part 502 is lowered onto the container part 503 onto the bracket 504 just after the container part 503 is in the

barrel-shaped flange zone 502a has entered. Thereon

the adjusting ring 505 is moved downwards to push the clip ' 504 and the container 502 over the container 503. j After the clamping movement of the outer link 505 downwards j vibrations are generated in the entire upper structure,; 10 to set the container part 502 above the container part 503 in vibration and enough frictional heat for

j mutual connection of the two container sections

: to create.

. It thus became a welding system for friction welder of plastic containers disclosed that is particularly useful for connecting two thermoplastic plastic container parts with a non-circular cross-section is = In the present invention, an oscillating axial movement is used instead of the conventional rotary movement with friction welding devices. Because the swinging movement is more of a translatory than a rotating one If there is movement, containers of almost any cross-sectional configuration can be friction-welded together. Before- The present invention discloses embodiments for low frequency oscillation welding of plastic articles and apparatus for high frequency oscillation welding.

ί 30 The above detailed description explains a special embodiment of the present invention, however, the description is not intended to mean the invention in the specific shapes or forms disclosed therein

j, as these are intended to be exemplary and not restrictive are recognizable and it is for the skilled person

'Obviously, the invention is not limited thereto is. For example, while electrical sensors and air

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operated vibration apparatus for generating the vibration welding effect have been disclosed, can if necessary, other means such as hydraulic actuation and mechanical vibrations instead can be applied. Furthermore, while the container upper part vibrates in contact with the container lower part is moved, it is possible to swing the lower part or even both container parts instead. It It is thus explained that the invention is all changes and modifications based on the same principle which includes specific examples of the invention disclosed herein for illustrative purposes.

Claims (1)

331U57 - 1 ~ Patent claims 1> Device for friction welding two objects made of thermoplastic material,
characterized by ,, ■ that a first holder (tool 30) for clamping I a first object to be welded with first clamping means and a receiving device for this first item are provided, j that the first holder is slidable on an axially Tool (upper tool spindle 29) is attached that the slidable tool on a first basic building block (Upper support structure 12) is slidably mounted that connected to the first tool (tool spindle 29) Oscillator means (25, 26, 27) are arranged so that they are the first tool opposite the first basic building block let it swing, that a second holder (lower tool storage 23) is provided for clamping a second object to be welded to the first, that the second holder is axially aligned with the first holder in the vicinity thereof and a receiving device for the second object and second clamping means for holding it and that means (17-20; 15, 16, 21) for reciprocating movement the first and second holders are provided between positions in which the objects are engaged stand or are disengaged. 2. Device according to claim 1, characterized in that the means for moving back and forth from at jodom of the basic components rotatably mounted roller plungers YY I (16, 17) and cam devices (cam channels 20, 21) formed in the basic building block (18 or 15), which accommodate the roller tappets and can set the holder in relative axial movement. 3. Device according to claim 1 or 2, characterized in that the oscillator means consists of a pneumatically operated Low frequency oscillator (air oscillator 25) exist for oscillations of about 50 to 500 Hz. 4. Device according to claim 1 or 2, characterized in that the oscillator means consists of a pneumatically operated Low frequency oscillator (air oscillator 25) exist for oscillations from about 50 to about 500 Hz and that the first and the second clamping means consist of vacuum means exist in the holders (upper tool 30, lower tool storage 23). 5. Device according to claim 1 or 2, characterized in that j that the oscillator means consists of an electrically operated oscillator (ultrasonic generator 104) for vibrations from about 50 Hz to about 50,000 Hz. j 6. Device according to claim 1 or 2, characterized in that that this oscillator means (ultrasonic transducer 104) consist of an electrically operated oscillator for oscillations of about 50 to 50,000 Hz and that the first and second vacuum device clamping means exist in these holders (upper tool 109, lower tool 111). 1. Device according to claim 1 or 2, characterized in that the oscillator means include means for varying their oscillation frequency and oscillation amplitude. 8- Friction welding system for oscillatory welding of at least two thermoplastic objects and with at least two welding stations, characterized in that a fixed lower part, an upper structure mounted on the lower part (upper support structure 12) and a lower structure mounted on the base below the upper structure (lower cam structure 15) are provided that the upper and lower structures are arranged so that they maintain their mutual circumferential alignment on that lower part,
and that at least one of the upper and lower structures (12, 15) is axially reciprocable relative to the other on the lower part, that means (17-20; 15, 16, 21) for axially reciprocating at least one of the Upper and lower superstructures opposite the other are provided that each welding station first brackets slidingly mounted on one of the upper and lower structures (upper tool 30, has lower tool storage 23), which is used for receiving and clamping a first thermo- ³ S plastic objects are formed, that oscillator means (26, 27) on the first holder for axially oscillating the holder on the Structure are provided and that the second brackets (lower tool position OJ IH4J tion 23) are arranged on the other of the upper and lower structures, which lead to the first brackets are axially aligned and for receiving and clamping a second thermoplastic to be welded to the first Plastic object are designed that each welding station (11) selective drive means (Fig. 5) for the oscillator means and these brackets at the welding stations, that the means (17-20) for axially moving back and forth are set up to hold the first holder (upper Tool 30) between a first position in which the thermoplastic plastic objects are separated, and a second position in which the thermoplastic plastic objects are nested in engagement stand, move that the oscillator means (26, 27) are arranged to oscillate only when the first and second Holders (upper tool 30, lower tool storage 23) are in the position in which the Plastic objects are in engagement, and that these oscillator means further comprise frequency and amplitude adjustment devices which adjust the oscillation allow the plastic objects to be nested into one another during their oscillation to keep. 9. Welding system according to claim 8, characterized in that the upper and lower structures (upper support structure 12, lower structure 14) are fixed on that Lower part are rotatably mounted and that the means of movement from cams (cam channel 21) on the lower part and cam followers (16) on at least one of the upper ones and lower superstructures. 331U57 , 5 10. Welding system according to claim 9, ': II thereby g e k e η η draws, ; that both the upper and the lower structure (upper die 30, lower die support 23) are axially and rotatably movable on the lower part and both io engaged with the cam (cam channels 20 ,, 21) cam follower (16, 17) = 11. Welding system according to claim 8, 9 or 10, characterized in that ... 15 that the oscillator means consist of a pneumatic Oscillator (air oscillator 25) exist. 12. Welding system according to claim 8, 9 or 10, characterized in that 20 that the oscillator means consists of an air oscillator (25) for preselectable oscillations of a frequency. exist between about 50 and about 500 Hz. , 13. Welding system according to claim 8, 9 or 10, j 25 characterized by ■ that the. . Oscillator means consist of a "j air oscillator (25) for oscillations of a preselectable ι frequency between about 120 and about 240 Hz. -
30 14. Welding system after claim 8, 9 or 10, t, be s frequency between for selectable Hz and through this G e k e η η drawing η e after to be. approximately 50 that the oscil G claim 8, 9 or th oscillator from an electrically actuated e k e η η drawing 10, (Ultrasonic transducer 104) η e t, Vibrations one 35 about 50,000 Hz 15 = welding system through this IHHU / that the oscillator means are electrically operated Oscillator (ultrasonic generator 104) for preselectable oscillations with a frequency between approximately 20,000 and consist of about 50,000 Hz. 16. Welding system according to claim 8, 9 or 10, characterized in that that the oscillator means consists of a pneumatic oscillator (air oscillator 25) for preselectable oscillations a frequency between about 120 and about 240 Hz exist that the first and second brackets (Upper tool 30, lower tool storage 23) Vacuum devices for clamping the parts to be welded Have thermoplastic plastic objects and that the welding system also has means for Feeding the thermoplastic plastic objects to the welding stations as well as for removing the welded plastic objects. 17. Welding system according to claim 8, 9 or 10, characterized in that the oscillator means (104) consists of an electrical Oscillator for preselectable oscillations with a frequency between about 20,000 and about 40,000 Hz exist that the first and second brackets (upper tool 10 ', lower tool 111) vacuum devices for clamping the thermoplastic plastic objects to be welded have and that the welding system also has means for feeding the plastic objects zi the welding stations as well as for removing the welded plastic objects. 18. Process for welding at least two thermoplastic Plastic sections of similar shape 33H457 ; with relatively close fitting complementary joint parts, characterized, that one has these tightly fitting parts in telescopic Pushes the intervention together, dies.e parts axially against each other at such a high speed! 10 swing speed and for such a long period j can have enough heat to melt the contactless ■ approximately flat is generated therebetween, • these portions in the desired end position brings ^f is allowed to cool and the heated surfaces, whereby these portions are silent about .15. 19. The method according to claim 18,
characterized in that the thermoplastic plastic sections are dimensioned so that they fit into one another with an oversize. 20. The method according to claim 18 or 19, characterized in that the thermoplastic plastic sections from organic thermoplastic resins having close melting points. 21. The method according to claim 18 or 19, characterized in that: that the thermoplastic plastic sections consist of identical organic resins. 22. Method of forming a container from at least two thermoplastic plastic sections, each of which has a non-circular cross-sectional shape, which fits closely with the other section, vJ I 44 J / characterized in that these container sections are in separate holders clamps, which align the sections mutually axially pushed into one another, swing at least one of these brackets at such a high speed and for such a long period of time leaves, while these sections remain in a nested arrangement, that enough heat for Melting of the contact surfaces between them creates these nested sections while they are still are partially melted, brings into a preselected, desired mutual end position and lets these heated surfaces cool down to the point where they solidify. 23. The method according to claim 22, characterized in that at least one of these sections consists of a organic polymer made from styrene resins, polystyrenes, polypropylene, polycarbonate, polyethylene, polyethylene high density and polyethylene terephthalate group. 24. The method according to claim 22 or 23, characterized in that so that these thermoplastic sections consist of thermoplastics with melting points that are no more than about 17 ⁹ C apart. 25. The method according to claim 22 or 23, characterized in that the oscillation process occurs at a frequency of about 120 to about 240 Hz. 331U57 U - 000 or 23, the 22nd η ζ calibrates - 9 20th rch geken at a frequency of 5 26. The method according to claim Oscillation process Hz
1 is carried out = dad 000 to about 40 that approximately characterized in that the oscillation process occurs at a frequency of about 50 Hz to about 50,000 Hz. 28. The method according to claim 22, characterized in that the thermoplastic plastic sections confess to at least one amorphous organic resin 29. The method according to claim 22, characterized , that these thermoplastic plastic sections made of at least one crystalline organic resin are made. 30. Welded thermoplastic plastic object, characterized in that it is produced by a process with the stages ; Turned 30, that one part of this object (e.g. 301) in j a first section with one formed thereon Welding zone made of thermoplastic material provides another part of this object (e.g. 302) in a second section of thermoplastic material with a melting point close to that of the material of the first section that the second section has a weld zone shaped so that this fits tightly into the welding zone of the first section in a nested engagement, these parts are joined together in a nested engagement at these welding zones,
allows these parts to vibrate axially at such a high speed and for such a long period of time that sufficient heat is generated in these welding zones to at least partially melt this thermoplastic material therein,
bringing these parts into nested engagement into the desired predetermined position while this thermoplastic material is at least partially melted, and allows these parts to cool in this desired nested engagement until they solidify, whereby these parts are welded. 31. The object of claim 30,
characterized in that each of the thermoplastic materials is made of an organic resin and that the vibration process is performed at a frequency of about 50 Hz to about 50,000 Hz. 32. The object of claim 30, characterized in that each of the thermoplastic materials is made of an organic resin and that the resins each have melting points not more than about 17 ° C apart. 33. The article of claim 30, 31 or 32, characterized in that the welding zones ¹ DNSS a non-circular cross- 331U57 - ii - have sectional arrangement. 34. Object according to claim 30, 31 or 32, characterized in that that during the initial interlocking engagement, the welding zones fit into one another excessively. 35. The article of claim 30, 31 or 32, characterized in that the _p weld zones have a non-circular cross-sectional configuration and are initially inserted into one another with excess. 36. The object of claim 30,
characterized in that the thermoplastic materials each consist of an organic resin, the melting points of which are not more than about 17 ⁰ C apart, that the welding zones have a non-circular cross-sectional arrangement and initially fit into one another excessively and that the oscillation process at a frequency of about 120 Hz takes place up to about 240 Hz. 37. The object of claim 30, j characterized in that the thermoplastic materials each consist of a j organic resin are made whose melting points are not • are more than about 17 ° C apart that the welding j zonal have a non-circular cross-sectional arrangement and initially with excess fit and that the oscillation process at a frequency of about 20,000 Hz to about 40,000 Hz. 38. The article of claim 30, 36 or 37, dadu r. chg e ke π η ν, ν i η ο i ", YY I that the object is a container. 39. A container having a non-circular cross-sectional configuration and at least partially made from a thermoplastic organic resin, characterized in that it is produced by a process with the stages is, with which one a first part of this article in a first non-circular section with a weld zone of organic thermoplastic resin on it forms another part of this object in a second forms a non-circular section with a welding zone made of organic thermoplastic resin, that the organic resins have melting points that are no more than about 17 ° C apart, that the welding zones are designed in such a way that they fit into one another with an oversize in nested engagement, at least one of these sections can oscillate axially with respect to the other section while this is nested Intervention is retained while this oscillation occurs at a frequency of about 50 Hz to about 50 000 Hz takes place during such a period, that at least a part of the welding zones melts, and by bringing these parts into a predetermined position of engagement and thereafter this molten material lets cool, whereby these parts are welded. 40. The container of claim 39, characterized in that the organic resins from the styrenes, polystyrenes, 331U57 - 13 - , 5 polyethylene and polyethylene terephthalate comprising j group are selected. j 41. A container according to claim 39 or 40, I characterized by io that the oscillation process at a frequency of j is performed about 120 to about 240 Hz = 42. Container according to claim 39 or 40 , ; characterized, 15 that the oscillation process occurs at a frequency of about 20,000 to about 40,000 Hz is carried out »