Small-diameter and high-power flexible heating cable and preparation method thereof
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A heating cable, high-power technology, applied in the direction of heating element material, heating element shape, etc., can solve the problems of unsatisfactory working effect, inconvenient use and installation, large size and other problems, achieve good processability, improve work efficiency, Effect of High Current Carrying Capability
Inactive Publication Date: 2011-08-24
CHONGQING MATERIALS RES INST
View PDF3 Cites 1 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
At present, for some high-power heating cables used in a small space environment, the armored structure type is basically used. However, due to its relatively large size and low power, it is not easy to use and install, and the working effect is not good. Ideally, there is no better solution
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0027] see figure 1 , a small-diameter high-power flexible heating cable, characterized in that: the innermost layer of the small-diameter high-power flexible heating cable is a heating alloy wire core wire 3; the outer heating alloy wire core wire 3 is wrapped with at least Two layers of insulating fiber layers 2 are coated with a high-temperature-resistant bonding and sealing coating layer 1 on the outside of the insulating fiber layers 2 .
[0028] The wrapping directions of the two adjacent insulating fiber layers 2 are opposite. see figure 1 Middle wrapping direction A.
[0029] The diameter of the heating alloy wire core wire 3 is 0.5 mm; the heating alloy wire core wire 3 is 0Cr27Al7Mo2 alloy with a resistivity of 1.53 μΩ.m.
[0030] The layer of insulating fiber layer 2 is made of monofilament diameter of 5 μm, SiO 2 It is wrapped with high-purity fine quartz fibers with a content ≥99.95%.
[0031] The high-temperature-resistant bonding and sealing coating layer 1...
Embodiment 2
[0039] Others are the same as in Example 1, the diameter of the heating alloy wire core wire 3 is 0.5 mm; the alloy is a 6J22 alloy with a resistivity of 1.33 μΩ.m;
[0040] The layer of insulating fiber layer 2 is made of monofilament diameter of 6 μm, SiO 2 It is wrapped with high-purity micro-fine quartz fibers with a content ≥99.95%;
[0041] The winding speed voltage in the step b is 60V;
[0042] The spraying pressure in the step c is 0.5 MPa.
Embodiment 3
[0044] Others are the same as in Example 1, the diameter of the heating alloy wire core wire 3 is 0.5 mm; the alloy is a 1Cr20Al3 alloy with a resistivity of 1.23 μΩ.m;
[0045] The layer of insulating fiber layer 2 is made of monofilament diameter of 5 μm, SiO 2 It is wrapped with high-purity micro-fine quartz fibers with a content ≥99.95%;
[0046] The winding speed voltage in the step b is 80V;
[0047] The spraying pressure in the step c is 0.3 MPa.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
PUM
Property
Measurement
Unit
electrical resistivity
aaaaa
aaaaa
diameter
aaaaa
aaaaa
diameter
aaaaa
aaaaa
Login to view more
Abstract
The invention discloses a small-diameter and high-power flexible heating cable, and a preparation method thereof. The small-diameter and high-power flexible heating cable is provided with a heating alloy wire core line in an innermost layer; the external part of the heating alloy wire core line is lapped with an insulating fiber layer; and the outer surface of the insulating fiber layer is coated with a high temperature resistance splicing and sealing coating layer. The preparation method comprises the following steps: a) electrothermal alloy is subjected to fine wire drawing processing and is machined into the heating alloy wire core line with the diameter of 0.4-0.7 mm, and the heating alloy wire core line is subjected to high temperature annealing and softening in the hydrogen protective atmosphere; b) the heating alloy wire core line is lapped with the multi-layer insulating layer, and is made into a small high-power special heating cable with the diameter smaller than Phi 1.0 mm; c) the high temperature resistance splicing and sealing coating is sprayed onto the surface of the insulating fiber layer of the heating cable; and d) the heating cable is aired at the room temperature and is placed in an oven, and after 1-hour heat preservation at 200 DEG C and solidification process, the small-diameter and high-power flexible heating cable can be obtained. In the invention, the small high-power special heating cable with the diameter smaller than Phi 1.0 mm can be manufactured; and the design requirement of generating high power instantly in a narrow space can be met, and the ice removal and prevention efficiencies and effects of relative components can be improved.
Description
technical field [0001] The invention relates to a heating cable, in particular to a small-diameter, high-power flexible heating cable and a preparation method thereof. Background technique [0002] Heating cables are mainly of two types: limited current type and constant current type in terms of performance, and can be divided into armored and unarmoured structures in terms of structure. According to different use positions, working environments and technical requirements, these two types can be used respectively. Types of heating cables. At present, for some high-power heating cables used in a small space environment, the armored structure type is basically used. However, due to its relatively large size and low power, it is not easy to use and install, and the working effect is not good. Ideally, there is no better solution yet. Contents of the invention [0003] The object of the present invention is to address the deficiencies of the prior art, and provide a small-di...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more