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Electro-fusion tape

A technology of electrofusion and ground electricity, applied in the direction of application, pipeline support, pipeline connection layout, etc., can solve the problems of increased welding time, high production and storage costs, and unfavorable occupational safety, and achieve the effect of reducing welding time and uniform heating

Active Publication Date: 2019-12-06
GEORG FISCHER ROHRLEITUNGSSYST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The disadvantage here is that, especially for large-sized pipes with correspondingly large pipe circumferences, the voltage required for welding increases significantly, which is disadvantageous in terms of occupational safety
Alternatively, welding time is greatly increased at low voltages, which results in additional cost to the installer
Furthermore, due to the contact points for the power supply, each tube size must have a separate connection piece matching the tube diameter, resulting in high production and storage costs
Furthermore, the construction requires special non-standard pipe clamps with suitable diameters, which in turn leads to part geometries that provide products with unnecessarily high bending resistance

Method used

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  • Electro-fusion tape
  • Electro-fusion tape
  • Electro-fusion tape

Examples

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Embodiment Construction

[0036] Figure 1-3 A section is shown of electrofusion strips 1 according to the invention, each having a differently shaped connection formation or wrap-around guide, which helps to ensure that the heating element 3 is guided at the sides and at the top and bottom at the sheathing element 2 and cannot be easily or individually detached from the sheath element 2. figure 1 A wraparound guide is shown, in the form of a T-slot guide. This enables displacement of the heating element 3 in the sheath element 2 along the strip length 5 , but prevents lateral and also relative upward and downward displacement of the two elements 2 , 3 and separate mutual separation. The possibility of relative displacement of the elements 2, 3 along the strip length 5 allows the fusion strip 1 to be placed around any size pipe diameter, since the fusion strip 1 is flexible or more bendable in application due to the relative displacement. The coextruded electrofusion tape 1 suffers a slight flexibili...

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PUM

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Abstract

The invention relates to an electro-fusion tape and method for the production thereof for welding together with plastics pipes in particular for use in a fixed-point fastening, consisting of a jacketelement preferably of an electrically insulating plastics material, at least one heating element of electrically conductive plastics material and at least two contact elements for supplying electricity to the heating element, wherein the jacket element and the heating element take the form of tapes, wherein the jacket element surrounds the heating element at least in part, wherein the contact elements are arranged in the mutually opposing marginal regions of the heating element and extend parallel to one another along the heating element.

Description

technical field [0001] The invention relates to an electrofusion strip for welding with plastic pipes, in particular for fixed point fasteners, consisting of a sheathing element, preferably of electrically insulating plastic material, at least one heating element of electrically conductive plastic material, and at least two contact elements for powering the heating element. Background technique [0002] This electrofusion band is used in the prior art, for example, to fix pipe clamps on pipes to ensure protection against axial displacement. In most cases fixed point fasteners or fixed points are used for this purpose and are generally known for laying or fastening pipe systems. Axial movement in plastic tubing can be controlled or prevented with this fixed point fastener. Fixed point fasteners subdivide the plastic tube into small sections with limited freedom of movement. In this case, the fixed point fastener must accommodate the longitudinal expansion forces of the pla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C65/34F16L47/03
CPCB29C65/342B29C65/3468B29C65/3488B29C66/1122B29C66/5221B29C66/5229B29C66/73921F16L47/03F16L3/11F16L47/00B29C65/3456B29C66/71B29C66/723B29C66/73141B29C65/3412B29C65/3416B29C66/5326B29L2023/22B29K2023/00B29C65/4815B29C65/3432B29C65/5071B29C65/5057H01R13/03B29C66/53261B29C65/3476B29C65/3492
Inventor A.布鲁内尔
Owner GEORG FISCHER ROHRLEITUNGSSYST