Method for making terminal or coupling sleeve

专利摘要:
A sleeve, terminal body, plug body, or the like receives tubular or ring-shaped, normally solid but thermoplastic filler elements, being traversed by a cable or conductor, particularly a portion from which insulation has been stripped. A plunger-like element receives also the cable or conductor and is inserted in one end of the sleeve, or body, the other end being closed by another plunger or body structure. Upon heating, the filler element melts and the plunger or plungers are forced further in to cause melted filler material to fill all voids; the deformed material resolidifies and seals and bonds all parts together.
公开号:SU1306489A3
申请号:SU813352398
申请日:1981-11-04
公开日:1987-04-23
发明作者:Айлентропп Хайнц
申请人:Хев-Кабель,Хайнц Айлентропп Кг (Фирма)；
IPC主号:

专利说明:

one
The invention relates to electrical engineering, in particular to methods of forming couplings, and can be used to connect conductors with high-temperature insulation made of polymeric materials, thermoelements in a sheath, cables with mineral insulation in a metal sheath, tubular heating elements. The purpose of the invention is to increase the reliability when using cables from an extrudable fluoropolymer melt.
FIG. Figure 1 shows the initial manufacturing phase of the cable joint; in fig. 2 - coupling; in fig. 3 - guiding element; FIG. 4 is a view A of FIG. 3; in fig. 5 - end coupling; in fig. 6 - conductor entry; in fig. 7-8 - options for couplings.
In order to implement the method of forming the coupling, the conductors 1 and 2 are cleaned from the corresponding insulation 3 and 4 of polytetrafluoroethylene. Before connecting the ends of the conductors, for example, by means of the clamping sleeve 5 through the flanges 6 and the ends of the conductors are passed, the same applies to the outer sleeve (housing) 8 and to the inner shaped element 9, which is used as the casting mass. The flanges 6 and 7, as well as the outer sleeve 8, are made of a material corresponding to the insulation material of the conductors (also polytetrafluoroethylene), and the shaped element 9 is made from a copolymer, for example, based on tetrafluoroethylene (perfluoro) alkyl fluorine ether.
The coupling 8 and the shaped element used as a casting mass are set to the required position of the flanges 6 and 7 enter the coupling 8. By means of the heating cuff or heating furnace, the coupling 8 is heated to a temperature that the coupling still retains its form ( in polytetrafluoroethylene (D 350-380 C), .a shaped element 9, made of copolymerization, already becomes a fluid state. When the flanges 6 and 7 are shifted in the directions shown by the arrows, a dense filling of the connection point formed from the shaped element 9 will be ensured.









nothing All empty cavities are filled: the molten copolymer provides a reliable connection of the individual parts with each other and with the insulation of the 3 and 4 ends of the conductors. The final view of the rupture-resistant and non-moisture connection of the coupling is shown in FIG. 2. The shaped element 9 represents the priming and gluing mass 10.
The advantage of such a compound is obvious. Only industrially manufactured parts are required, even the casting mass is in a solid state, their storage is simple. According to the available conductors, the coupling accessories are selected according to the size, installation is simple and reliable, it can be carried out by unqualified personnel of installers. If the temperature readings are not selected accurately enough, the introduction of flanges 6 and 7 into the sleeve 8 is difficult for the uniform element 9 not yet brought into the molten state. The introduction of flanges 6 and 7 with a given pressure to the stops 11 and the output of the molten material through
The test holes 12 in the sleeve housing 8 are automatic controls for filling cavities and gaps. This also applies to the gaps 13 between the flanges and the insulation. Emphasis on
flange facilitates installation. Flanges of arbitrary shape can be used for pressurized installations. The flanges function as a piston, which, after the end of the process, remains in the product and provides a connection to the casting mass with the necessary compaction.
Additional guide elements 14 (Figs. 3 and 4) are located inside the sleeve and are intended to separate the heating conductors and shields, which are separated in different directions, placed in the grooves 15 or 16 and fixed when the melting element 9 and subsequent solidification.
FIG. 5 shows the termination of the thermoelectric sensor of an electrical conductor.
According to FIG. 2, the state of the sealed coupling is ready for use.
after heat treatment, i.e. condition suitable for use. The conductors 17 of the cable 18, as is the case in thermoelectric sensors, converge in the connector 19. The hermetic attachment of the core 17 and the connection with the shell 20 is hermetic and safe for breaking, due to the copolymer formed from the shaped element, for example, based on tetrafluoroethyl - torus) alkyl-perfluorovinyl ether. This material, with appropriate heat treatment, enters into a reliable connection with the inner surfaces of the sheath 20 based on polytetrafluoroethylene, in addition to this, in the introduced state of the flange 21 provides a reliable tight connection between the sheath 20 and the flange 21 and between the flange 21 and the outer surface of the cable 18. The end of the connection is monitored through the control hole 22.
Unloading the conductor 23 from tension with the exclusion of moisture penetration while simultaneously applying elevated temperature and pressure is ensured by inserting the flange 24 into the inlet 25 of the rifled element 26. The material 27 melted during temperature treatment of the shaped element fills all cavities with the introduction of the flange 24 and, with high mechanical strength, provides a connection between the conductor insulation, the flange and the threaded element.
The principle of rigid connection of parts from materials melting at high temperatures through low-melting components according to the invention can be applied in various versions, for example, besides thermoelectric sensors or thermocouples with a sheath, on cables with mineral insulation in a metallic sheath or on tubular heating elements, as well as connectors, boxes, sleeves, sleeves, etc. elements.
The core 29 in a single or stranded gatekeeper with connecting conductor 28 is connected to the pin 30 of the plug by soldering, the plug housing 31 serves when inserting a flange
32 and heat treated as an external form for the molten mass 3 from a material with low thermal stability.
The core 29 of the connecting conductor 28 is electrically connected with the opposite contact 34 of the pin 30 of the plug (Fig. 8.). The housing 31 of the coupling, made, for example, of polytetrafluoroethylene, includes a flange 32 of the same material. A mechanically secure connection between the insulation made of polytetrafluoroethylene and connecting conductor 28 and the flange 32 or between the latter and the housing 31 of the coupling is provided by a shaped element which, during heat treatment, provides a melting material 33 with somewhat lower thermal stability than polytetrafluoroethylene.
Thus, the proposed method creates a reliable connection in all cases of its use.

权利要求:
Claims (1)
[1]
Invention Formula
A method of forming an end or connecting sleeve, in which a bare part or contact terminal of a cable is enclosed with an insulating material body to form a cavity between the body and the cable, and then fill it with an insulating material and create pressure inside the cavity. when using cables from an extrudable melt fluoropolymer, the casing is made of a fluoropolymer not extrudable by extrusion, similar to the fluoropolymer insulation cable, as the insulating material for filling the cavity, use a fluoropolymer with a melting point lower than the melting temperature of the material of the body, the body is filled with at least one tube and the pressure is created through the end parts of the body with the help of flanges made of a material similar to the material of the body by heating to melting point.
10 2 8
/
FIG. g
1C
15
FIG. five
Fa.Ch
FIG. five
25
24Fig .6
L
Fig: 7
Editor N. Rogulich Tehred L. Serdyukova
Co Po
1471/59 Circulation 699
VNIIPI USSR State Committee
for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5
Production and printing company, Uzhgorod, st. Project, 4
Fig.8
Proofreader A. Zimokosov Subscription

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IT8124845D0|1981-11-04|

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法律状态:

优先权:

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申请号 | 申请日 | 专利标题

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DE3041657A|DE3041657C2|1980-11-05|1980-11-05|

---