Background technology
Carbon fiber heating has higher electric conversion efficiency, and energy-saving effect is remarkable, and its far infrared radiation produced, and has to improve microcirculation in human body, enhance metabolism, benefit the features such as healthy, just progressively transfers a new generation's heating heating material to.
At present, the application of carbon fiber heating product widely.The electric heating product of carbon fibre material mainly contains following two kinds:
One is continuous carbon fibre long filament heating products, and it has higher heating-up temperature, and has good pliability.But, because its heating region receives the distribution influence of carbon fiber filament, there is the phenomenon that heating products surface temperature distribution is uneven, the comfort of continuous carbon fibre long filament heating products reduced.For heating cushion prepared by continuous fiber silk, very easily there is heating-up temperature skewness and cause seat leathering along the variable color of carbon fiber arranged direction, distortion.
Another kind is Powdered heating products, and carbon fiber powder is processed into face, and it has uniformity of temperature profile, the feature of thermal radiation gentleness, can be combined, be combined with workmanship with indoor floor, metope, carpet, reaches heating and insulation object.But its heating temp is not high, and pliability is lower, be not suitable for preparing the heating products having high-flexibility.
Therefore, how to make carbon fiber heating mat homogeneous heating and there is comparatively high-flexibility, having become those skilled in the art's problem demanding prompt solution.
Summary of the invention
In view of this, the invention provides a kind of carbon fiber heating mat processing method, so that process homogeneous heating and the carbon fiber heating mat had compared with high-flexibility.
For achieving the above object, the invention provides following technical scheme:
A kind of carbon fiber heating mat processing method, comprises step:
Shear carbon fiber wire, form carbon fiber wire section;
Described carbon fiber wire section is processed into carbon fibre web tire;
Described carbon fibre web tire is processed into carbon fiber generates heat pad.
Preferably, in above-mentioned carbon fiber heating mat processing method, described step also comprises step after described carbon fiber wire section is processed into carbon fibre web tire: spray flexible setting agent.
Preferably, in above-mentioned carbon fiber heating mat processing method, the described step flexible setting agent sprayed in flexible setting agent is the mixed solution of polyvinyl alcohol, water soluble phenol resin and pure water; Wherein, polyvinyl alcohol ratio is 5%-15%, and water soluble phenol resin accounting example is 5-15%; The coating quality of described flexible setting agent is the 5%-10% of the quality of described carbon fibre web tire.
Preferably, in above-mentioned carbon fiber heating mat processing method, described step also comprises step after described carbon fiber wire section is processed into carbon fibre web tire: hot pressing carbon fibre web tire.
Preferably, in above-mentioned carbon fiber heating mat processing method, in described step hot pressing carbon fibre web tire, hot pressing temperature is 60 DEG C-100 DEG C, and pressure is 2tf-10tf.
Preferably, in above-mentioned carbon fiber heating mat processing method, described step also comprises step after described carbon fiber wire section is processed into carbon fibre web tire: shear described carbon fibre web tire.
Preferably, in above-mentioned carbon fiber heating mat processing method, described step shears carbon fiber wire, forms carbon fiber wire section and is specially:
The carbon fiber wire of 12K is sheared, forms the carbon fiber wire section that length is 30mm-50mm.
Preferably, in above-mentioned carbon fiber heating mat processing method, described carbon fiber wire section is processed into carbon fibre web tire and is specially by described step:
Described carbon fiber wire section is blowed and sprayed through shredding, air-flow, combing, the carbon fibre web tire made after fleece lamination and acupuncture operation.
Preferably, in above-mentioned carbon fiber heating mat processing method, the density of described carbon fibre web tire is 20g/cm
2-80g/cm
2.
Preferably, in above-mentioned carbon fiber heating mat processing method, described carbon fibre web tire is processed into carbon fiber generates heat pad and is specially by described step: at the two ends of described carbon fibre web tire difference fixed electrode, and at the upper surface of described carbon fibre web tire and the equal stationary positioned temperature-sensing element of lower surface and fire retardant, and sew up fire retardant and form carbon fiber generates heat pad.
As can be seen from above-mentioned technical scheme, carbon fiber heating mat processing method provided by the invention, by the carbon fiber wire section of cutting into, and is processed into carbon fibre web tire by carbon fiber section.Due to carbon fiber wire, the carbon fiber wire section after shearing still has the flexibility characteristics of long carbon fiber silk concurrently; Further, carbon fiber wire section is processed into carbon fibre web tire, its carbon fiber is evenly distributed, and then the heating temp of the carbon fiber generates heat pad after processing is evenly distributed.Apply the carbon fiber heating mat of carbon fiber heating mat processing method provided by the invention processing, there is good pliability, and heating temp is evenly distributed.
Embodiment
The invention discloses a kind of carbon fiber heating mat processing method, so that process homogeneous heating and the carbon fiber heating mat had compared with high-flexibility.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Please refer to Fig. 1, the schematic flow sheet of a kind of carbon fiber heating mat processing method that Fig. 1 provides for the embodiment of the present invention.
As shown in Figure 1, the carbon fiber heating mat processing method that the embodiment of the present invention provides, comprises step:
S1: shear carbon fiber wire, forms carbon fiber wire section;
By long carbon fiber wire by shearing, form short carbon fiber wire section.
S2: carbon fiber wire section is processed into carbon fibre web tire;
Carbon fiber wire section after shearing is processed into carbon fibre web tire.
S3: carbon fibre web tire is processed into carbon fiber generates heat pad.
Carbon fiber heating mat processing method provided by the invention, by the carbon fiber wire section of cutting into, and is processed into carbon fibre web tire by carbon fiber section.Due to carbon fiber wire, the carbon fiber wire section after shearing still has the flexibility characteristics of long carbon fiber silk concurrently; Further, carbon fiber wire section is processed into carbon fibre web tire, its carbon fiber is evenly distributed, and then the heating temp of the carbon fiber generates heat pad after processing is evenly distributed.The carbon fiber heating mat of the carbon fiber heating mat processing method processing that the application embodiment of the present invention provides, have the pliability that long carbon fiber silk heating resistance pad possesses, and heating temp is evenly distributed.
The carbon fiber heating mat that the short carbon fiber silk being cut into 30mm for the long carbon fiber silk of 12K is processed into:
After tested, the resistivity of heating resistance pad is 0.015 ± 0.005 Ω cm, and resistance value is 4.5 ± 0.5 Ω, surface temperature 38 DEG C-42 DEG C, surface temperature difference ± 1 DEG C, and arrive design temperature and be less than 60S, electric conversion efficiency is greater than 95%.And 360 ° of bendings can be reached.
Preferably, also comprise step after step S2 and spray flexible setting agent;
Flexible setting agent is sprayed, the carbon fiber wire section in fixed carbon fleece tire, to improve the pliability of carbon fibre web tire and the stability maintenance of carbon fiber wire section to carbon fibre web tire.
In the present embodiment, step sprays the mixed solution that the flexible setting agent in flexible setting agent is polyvinyl alcohol, water soluble phenol resin and pure water; Wherein, polyvinyl alcohol ratio is 5%-15%, and water soluble phenol resin accounting example is 5-15%; The coating quality of flexible setting agent is the 5%-10% of the quality of carbon fibre web tire.
Preferably, step hot pressing carbon fibre web tire is also comprised after step S2;
By hot-pressing technique, hot pressing is carried out to carbon fibre web tire, improve the stability maintenance of carbon fiber wire section further, and, reduce the thickness of carbon fibre web tire, and then reduce the thickness of carbon fiber generates heat pad.
In step hot pressing carbon fibre web tire, hot pressing temperature is 60 DEG C-100 DEG C, and pressure is 2tf-10tf, to reach hot pressing effect.
Preferably, also step is comprised after step S2: shear carbon fibre web tire.
By shearing carbon fibre web tire, reach applicable size, the temperature requirement reached to coordinate needs and appearance requirement.
Step S1: shear carbon fiber wire, forms carbon fiber wire section and is specially:
The carbon fiber wire of 12K is sheared, forms the carbon fiber wire section that length is 30mm-50mm.Also the carbon fiber wires such as 1K or 8K can be selected to cut into the carbon fiber wire section of other length, and process carbon fibre web tire by carbon fiber wire section.
Carbon fiber wire section is processed into carbon fibre web tire and is specially by step: carbon fiber wire section is blowed and sprayed through shredding, air-flow, combing, the carbon fibre web tire made after fleece lamination and acupuncture operation.
The density of carbon fibre web tire decides its gas permeability and electrical heating efficiency, and preferably, the density of carbon fibre web tire is 20g/cm
2-80g/cm
2.
Carbon fibre web tire is processed into carbon fiber generates heat pad and is specially by step: at the two ends of carbon fibre web tire difference fixed electrode, and at the upper surface of carbon fibre web tire and the equal stationary positioned temperature-sensing element of lower surface and fire retardant, and sew up fire retardant and form carbon fiber generates heat pad;
By double faced adhesive tape or other stickiness attachments at the two ends of carbon fibre web tire equal fixed copper electrode, and all increase location temperature-sensing element and fire retardant at the upper surface of carbon fibre web tire and lower surface, carbon fibre web tire, electrode, location temperature-sensing element and fire retardant are fixed by sewing up fire retardant, then compacting forms carbon fiber generates heat pad.
Preferably, carbon fibre web tire is in the process the carbon fibre web tire after hot pressing.
Fire retardant is divided into upper surface fire retardant and lower surface fire retardant, by both unidirectional closely knit stitchings, sew as continuous warp-weft two-way is sewed, and sewing thread width is between 3mm-8mm.
Also can connect by other means, as adhesion or snap-fastener connection etc.
The thickness of carbon fiber generates heat pad is 1mm-3mm.Due to its thinner thickness, be convenient to be processed as carpet, mat applying or cushion etc. further.
In this specification, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.