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Composite fiber electric heating twisted yarn and its preparation method

A composite fiber and electric heating technology, applied in the direction of heating element material, heating element shape, etc., can solve the problems of sparks or arcs, heating wires can only be heated, and no physical affinity, etc., and achieve the effect of reducing hardness

Active Publication Date: 2017-05-10
宋金昌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the carbon fiber heating wire is difficult to connect with the metal wire
Because, there is neither chemical affinity nor physical affinity between carbon and metal, only mechanical connection
The passage of current through such a junction can cause burning of the carbon, resulting in damage to the junction and sparking or arcing
[0004] In addition, no matter what kind of heating wire is currently available, there is a problem that it can only be heated and it is easy to cause the user to get angry, and it is impossible to achieve the purpose of heating and health care at the same time

Method used

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  • Composite fiber electric heating twisted yarn and its preparation method
  • Composite fiber electric heating twisted yarn and its preparation method
  • Composite fiber electric heating twisted yarn and its preparation method

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specific Embodiment approach

[0035] The specific embodiment: the present invention will be further described below in conjunction with accompanying drawing:

[0036] Such as figure 1 As shown, the present invention provides a composite fiber electrothermal twisted yarn, which is composed of superfine multi-strand composite fiber with a diameter of 7-15um after spinning and twisting. The surface of the superfine composite fiber is not insulated, and it is used for heating at low voltage (below 36V). It can be directly embroidered, corded, quilted, weaved, and cabled. It can also be used as a hand needle and sewing thread, and can work for a long time At 50-120°C.

[0037] The multi-strand composite fiber is 30-15000 strands, and the specific number of strands is selected according to the specific required heating degree.

[0038] Such as figure 2 As shown, the nano-metal film 2 is coated on the periphery of the composite fiber 1. When the thickness of the nano-metal film is 2 to 3 microns, the effect i...

Embodiment 1

[0050] (1) Take C: 1.5 parts; Si: 1 part; Mn: 4 parts; Ni: 10 parts; Cr: 17 parts; Mo: 6 parts; W: 2 parts; P: 1 part, pine Skin powder: 3 parts, make compound ingredients, stir well and then use steelmaking method to refine;

[0051] (2) The refined product is wire-drawn, and then the wire-drawn product is successively sheathed and composited, and then electron beam welding is performed to form a primary composite fiber with a diameter of 16um;

[0052] (3) Extruding after electron beam welding, drawing after extrusion, heat treatment, and drawing again, so that the diameter of the primary composite fiber is 13um;

[0053] (4), carry out secondary compounding to the product in (3) step, then carry out electron beam welding, extruding and drawing successively, make the diameter of primary composite fiber be 10um;

[0054] (5) Carry out heat treatment to the product in the "(4)" step, draw after the heat treatment, and form ultrafine fiber bundles with a diameter of 9um after ...

Embodiment 2

[0057] (1) Take C: 2.5 parts; Si: 2.5 parts; Mn: 3 parts; Ni: 13 parts; Cr: 15 parts; Mo: 3 parts; W: 3 parts; The compound ingredients are mixed evenly and refined by steelmaking method;

[0058] (2) The refined product is subjected to wire drawing treatment, and then the drawn product is sequentially sheathed and composited, and then electron beam welding is performed to form a primary composite fiber with a diameter of 40um;

[0059] (3) Extruding after electron beam welding, drawing after extrusion, heat treatment, and drawing again, so that the diameter of the primary composite fiber is 30um;

[0060] (4), carry out secondary compounding to the product in (3) step, then carry out electron beam welding, extrusion and drawing successively, make the diameter of primary composite fiber be 25um;

[0061] (5) Carry out heat treatment to the product in the "(4)" step, draw after the heat treatment, and form ultrafine fiber bundles with a diameter of 20um after chemical separati...

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Abstract

The invention relates to a composite fiber electric heating twisted wire and a preparation method thereof. The composite fiber electric heating twisted wire is characterized in that a plurality of strands of superfine composite fibers are spun and twisted to from the electric heating twisted wire, the diameter of the superfine composite fibers ranging from 9 to 15um. Products made of the composite fiber electric heating twisted wire are soft, light, portable and flexible, and are safe to human bodies. The wire is called heating fibers and is specially used for heating. The fibers are soft and flexible and can replace a metal heating wire to realize a heat release function; the diameter of the composite fiber electric heating twisted wire is small; and the resistance of the composite fiber electric heating twisted wire is small, and the resistance per meter of the wire is smaller than 1 ohm.

Description

technical field [0001] The invention belongs to the field of electric heating, and in particular relates to a composite fiber electric heating twisted yarn and a preparation method thereof. Background technique [0002] The current forms of electric heating are mainly divided into metal electric heating and carbon fiber heating, but these two forms have the following disadvantages: The biggest disadvantage of metal electric heating products is low mechanical strength. If the metal core wire breaks, the light one will cause the product to be scrapped; the serious one will generate an arc, causing the heater to catch fire and get an electric shock. [0003] Carbon fiber heating products are relatively soft and elastic, and will not break when mechanically deformed. But carbon fiber heating wires are difficult to connect with metal wires. Because there is neither chemical affinity nor physical affinity between carbon and metal, only mechanical connection. The passage of elec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05B3/56H05B3/10
Inventor 宋金昌
Owner 宋金昌
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