CN107567120B - Production method of carbon fiber heating cable - Google Patents
Production method of carbon fiber heating cable Download PDFInfo
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- CN107567120B CN107567120B CN201710791439.4A CN201710791439A CN107567120B CN 107567120 B CN107567120 B CN 107567120B CN 201710791439 A CN201710791439 A CN 201710791439A CN 107567120 B CN107567120 B CN 107567120B
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- carbon fiber
- silica gel
- cable
- coated
- fiber cable
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- 229920000049 Carbon (fiber) Polymers 0.000 title claims abstract description 101
- 239000004917 carbon fiber Substances 0.000 title claims abstract description 101
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 101
- 238000010438 heat treatment Methods 0.000 title claims abstract description 35
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 79
- 239000000741 silica gel Substances 0.000 claims abstract description 79
- 229910002027 silica gel Inorganic materials 0.000 claims abstract description 79
- 238000000576 coating method Methods 0.000 claims abstract description 22
- 239000011248 coating agent Substances 0.000 claims abstract description 21
- 239000002243 precursor Substances 0.000 claims abstract description 19
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 18
- 238000010257 thawing Methods 0.000 claims abstract description 11
- 239000004595 color masterbatch Substances 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000002156 mixing Methods 0.000 claims description 12
- 230000000149 penetrating effect Effects 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 3
- 239000000498 cooling water Substances 0.000 claims description 3
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000007670 refining Methods 0.000 abstract 1
- 238000010074 rubber mixing Methods 0.000 abstract 1
- 239000011247 coating layer Substances 0.000 description 6
- 238000005253 cladding Methods 0.000 description 4
- 238000001035 drying Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Landscapes
- Ropes Or Cables (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a production method of a carbon fiber heating cable, which mainly comprises the following steps of S1, rubber mixing: sequentially adding raw rubber, a vulcanizing agent, a defrosting agent and color master batch into the double-roller open mill, and refining to obtain coated silica gel with uniform color; s2, primary coating of the carbon fiber precursor: coating the carbon fiber precursor for one time by using a silica gel extruder a at 350 ℃; s3, secondary coating of carbon fiber precursors: and (3) carrying out secondary coating on the carbon fiber precursor after the primary coating by using a silica gel extruder b at the temperature of 300 ℃, and finally preparing the carbon fiber heating cable. The invention adopts the secondary coating technology, increases the outer diameter thickness of the carbon fiber heating cable, enhances the centrality and toughness of the cable, and prolongs the service life of the cable; the proportioning method of the coated silica gel is reasonable, and the defrosting proportion is increased, so that the anti-frosting capability of the finished product of the carbon fiber heating cable is improved, and the using effect is improved.
Description
Technical Field
The invention belongs to the technical field of electric heating, and particularly relates to a production method of a carbon fiber heating cable.
Background
The carbon fiber heating technology is characterized in that a carbon fiber heating cable is connected to a metal power line (cold wire), and after the carbon fiber heating cable is electrified, far infrared rays are generated by the carbon fiber heating cable to radiate energy outwards to achieve the purpose of heating. The carbon fiber heating cable and the application thereof have the advantages of high thermal performance, convenience in installation, low maintenance cost, safety and reliability in use and the like, and the electric heat conversion efficiency is improved by 30% compared with that of metal heating, and the electric heat efficiency is about 100%.
At present, the domestic production process of the carbon fiber heating cable is to perform one-step coating molding on silica gel, and because the carbon fiber is originally flat, the defect of uneven coating often occurs in the one-step coating process, so that the service life of the produced carbon fiber heating cable is short; and the carbon fiber heating cable produced according to the one-time coating production process is applied to the northwest, northeast and other cold areas, and white frost often appears on the cable, so that the use effect of the carbon fiber heating cable is influenced.
Disclosure of Invention
In view of the above disadvantages, the present invention aims to provide a method for producing a carbon fiber heating cable, which can improve the use effect and prolong the service life.
The invention realizes the purpose, and adopts the technical scheme that: a production method of a carbon fiber heating cable comprises the following steps:
S1, mixing rubber:
firstly, after a double-roller open mill is electrified, cooling water is ensured to be introduced into a roller of the double-roller open mill, and the mixing temperature is below 40 ℃;
adding 5-10kg of raw rubber and 75-150g of vulcanizing agent into the double-roller open mill in sequence, mixing the rubber for 2-3min until the raw rubber is soft and smooth, adding 15-30g of defrosting agent and 25-50g of color master batch in sequence, and continuously mixing the rubber for 5-8 min to obtain the coated silica gel with uniform color;
S2, primary coating of the carbon fiber precursor:
③, after the silica gel extruder a is electrified, the temperature is adjusted to 350 ℃ to preheat an oven of the silica gel extruder a;
fixing the carbon fiber precursor on a rotating shaft of the silica gel extruder a, opening a machine head of the silica gel extruder a, assembling a matched die a with required size, and penetrating the carbon fiber precursor with the machine head through a die opening;
after the oven temperature of the silica gel extruder a reaches 350 ℃, a traction wire a penetrates through the oven and passes through a talcum powder device, and finally the traction wire is wound and fixed on a wire guide shaft a;
⑥, feeding the coated silica gel into a charging barrel of the silica gel extruder a from a forced feeding device, and moving the coated silica gel to the head direction of the silica gel extruder a through the rotation of a screw rod of the silica gel extruder a, so that the carbon fiber precursor is coated with the silica gel at the head of the silica gel extruder a to obtain a primary coated carbon fiber cable;
⑦, the primary coated carbon fiber cable continuously moves in the silica gel extruder a, is extruded and plasticized by a matched mould a and is finally extruded from a mould opening, and the silica gel extruder a is cooled by a cooling mechanism in the process;
adjusting the uniformity of the wire diameter of the extruded primary coated carbon fiber cable, binding the wire head of the primary coated carbon fiber cable with the pull wire a after the adjustment is finished, adjusting the speed of the primary coated carbon fiber cable by using a speed control device, and moving the primary coated carbon fiber cable along with the pull wire a to be automatically wound on a wire guide shaft a after the primary coated carbon fiber cable is adjusted to be consistent with the speed of the pull wire a;
S3, secondary coating of carbon fiber precursors:
⑨, after the silica gel extruder b is electrified, adjusting the temperature of an oven to 300 ℃ for preheating;
in the preheating process of the oven at the third (r), fixing a lead shaft a of the primary coated carbon fiber cable on a pay-off rack, opening a machine head of a silica gel extruder b, assembling a matched mould b with required size, and penetrating the primary coated carbon fiber cable with the machine head part through a mould opening;
The mass ratio of the raw rubber to the vulcanizing agent to the defrosting agent to the color master batch is 1000:15:3: 5.
Compared with the prior art, the invention has the following beneficial effects:
1. The invention adopts a secondary coating technology, and secondary coating is carried out on the basis of primary coating, so that the outer diameter thickness of the carbon fiber heating cable is increased, the centrality and the toughness of the cable are further enhanced, and the service life of the cable is prolonged;
2. The proportioning method for producing the coated silica gel is reasonable, and the defrosting proportion is increased, so that the anti-frosting capability of the finished product of the carbon fiber heating cable is improved;
3. When the carbon fiber heating cable produced by the invention is used, the radiation is uniform, the phenomenon of frosting and frosting is avoided, and the use effect is improved;
4. The method of the invention is reasonable, and the produced product has long service life and good use effect.
Detailed Description
Example 1: a production method of a carbon fiber heating cable comprises the following steps:
S1, mixing rubber:
firstly, after a double-roller open mill is electrified, cooling water is ensured to be introduced into a roller of the double-roller open mill, and the mixing temperature is below 40 ℃;
secondly, after 5kg of crude rubber and 75g of vulcanizing agent are sequentially added into the double-roller open mill, mixing the rubber for 2-3min until the crude rubber is soft and smooth, then sequentially adding 15g of defrosting agent and 25g of color master batch, and continuously mixing the rubber for 5-8 min to obtain the coated silica gel with uniform color;
S2, primary coating of the carbon fiber precursor:
③, after the silica gel extruder a is electrified, the temperature is adjusted to 350 ℃ to preheat an oven of the silica gel extruder a;
fixing the carbon fiber precursor on a rotating shaft of the silica gel extruder a, opening a machine head of the silica gel extruder a, assembling a matched die a with required size, and penetrating the carbon fiber precursor with the machine head through a die opening;
after the oven temperature of the silica gel extruder a reaches 350 ℃, a traction wire a penetrates through the oven and passes through the talcum powder device, and finally the traction wire is wound and fixed on a wire guide shaft a;
⑥, feeding the coated silica gel into a charging barrel of the silica gel extruder a from the forced feeding device, and rotating a screw rod of the silica gel extruder a to enable the coated silica gel to move towards the head of the silica gel extruder a, so that the carbon fiber precursor is coated with the silica gel at the head of the silica gel extruder a to obtain a primary coated carbon fiber cable;
seventhly, continuously moving the primary coated carbon fiber cable in the silica gel extruder a, extruding the cable by a matched mould a, drying the cable by an oven, plasticizing the cable, and finally extruding the cable from a mould opening, wherein the silica gel extruder a is cooled by a cooling mechanism in the process;
adjusting the uniformity of the wire diameter of the extruded primary coated carbon fiber cable, binding the wire head of the primary coated carbon fiber cable and a traction wire a together after the adjustment is finished, adjusting the speed of the primary coated carbon fiber cable and the traction wire a through a speed control device, and moving the primary coated carbon fiber cable along with the traction wire a to be automatically wound on a wire guide shaft a after the primary coated carbon fiber cable and the traction wire a are adjusted to be consistent in speed;
S3, secondary coating of carbon fiber precursors:
⑨, after the silica gel extruder b is electrified, adjusting the temperature of an oven to 300 ℃ for preheating;
in the preheating process of the oven at the third (r), fixing a lead shaft a of the primary coated carbon fiber cable on a pay-off rack, opening a machine head of a silica gel extruder b, assembling a matched mould b with required size, and penetrating the primary coated carbon fiber cable with the machine head part through a mould opening;
Example 2:
Different from the example 1, 7.5kg of raw rubber, 112.5g of vulcanizing agent, 22.5g of defrosting agent and 37.5g of color master batch are added into a two-roll open mill in sequence to finally prepare the carbon fiber heating cable with the coating layer thickness of 5.5mm and the length of about 247.5 m.
Example 3:
Different from the example 1-2, 10kg of raw rubber, 150g of vulcanizing agent, 30g of defrosting agent and 50g of color master batch are sequentially added into a two-roll open mill, and finally the carbon fiber heating cable with the coating layer thickness of 5.5mm and the length of about 330m is prepared.
In examples 1-3 above, the amounts of raw rubber, vulcanizing agent, defrosting agent and color masterbatch added in the two-roll mill were determined according to the length of the carbon fiber discovery cable to be produced; the coating layer of the primary coated carbon fiber cable is heated again in the silica gel extruder b, then is extruded uniformly, and is coated for the second time, the thickness of the final coating layer is uniform, the thickness of the coating layer of the primary coated carbon fiber cable is 2.5mm, and the thickness of the coating layer after secondary coating is 5.5 mm.
Claims (2)
1. A production method of a carbon fiber heating cable is characterized by comprising the following steps: the method comprises the following steps:
S1, mixing rubber:
firstly, after a double-roller open mill is electrified, cooling water is ensured to be introduced into a roller of the double-roller open mill, and the mixing temperature is below 40 ℃;
adding 5-10kg of raw rubber and 75-150g of vulcanizing agent into the double-roller open mill in sequence, mixing the rubber for 2-3min until the raw rubber is soft and smooth, adding 15-30g of defrosting agent and 25-50g of color master batch in sequence, and continuously mixing the rubber for 5-8 min to obtain the coated silica gel with uniform color;
S2, primary coating of the carbon fiber precursor:
③, after the silica gel extruder a is electrified, the temperature is adjusted to 350 ℃ to preheat an oven of the silica gel extruder a;
fixing the carbon fiber precursor on a rotating shaft of the silica gel extruder a, opening a machine head of the silica gel extruder a, assembling a matched die a with required size, and penetrating the carbon fiber precursor with the machine head through a die opening;
after the oven temperature of the silica gel extruder a reaches 350 ℃, a traction wire a penetrates through the oven and passes through a talcum powder device, and finally the traction wire is wound and fixed on a wire guide shaft a;
⑥, feeding the coated silica gel into a charging barrel of the silica gel extruder a from a forced feeding device, and moving the coated silica gel to the head direction of the silica gel extruder a through the rotation of a screw rod of the silica gel extruder a, so that the carbon fiber precursor is coated with the silica gel at the head of the silica gel extruder a to obtain a primary coated carbon fiber cable;
⑦, the primary coated carbon fiber cable continuously moves in the silica gel extruder a, is extruded and plasticized by a matched mould a and is finally extruded from a mould opening, and the silica gel extruder a is cooled by a cooling mechanism in the process;
adjusting the uniformity of the wire diameter of the extruded primary coated carbon fiber cable, binding the wire head of the primary coated carbon fiber cable with the pull wire a after the adjustment is finished, adjusting the speed of the primary coated carbon fiber cable by using a speed control device, and moving the primary coated carbon fiber cable along with the pull wire a to be automatically wound on a wire guide shaft a after the primary coated carbon fiber cable is adjusted to be consistent with the speed of the pull wire a;
S3, secondary coating of carbon fiber precursors:
⑨, after the silica gel extruder b is electrified, adjusting the temperature of an oven to 300 ℃ for preheating;
in the preheating process of the oven at the third (r), fixing a lead shaft a of the primary coated carbon fiber cable on a pay-off rack, opening a machine head of a silica gel extruder b, assembling a matched mould with required size, and penetrating the primary coated carbon fiber cable with the machine head part through a mould opening;
2. The production method of a carbon fiber heating cable according to claim 1, characterized in that: the mass ratio of the raw rubber, the vulcanizing agent, the defrosting agent and the color master batch is set to be 1000:15:3: 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710791439.4A CN107567120B (en) | 2017-09-05 | 2017-09-05 | Production method of carbon fiber heating cable |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710791439.4A CN107567120B (en) | 2017-09-05 | 2017-09-05 | Production method of carbon fiber heating cable |
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| Publication Number | Publication Date |
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| CN107567120A CN107567120A (en) | 2018-01-09 |
| CN107567120B true CN107567120B (en) | 2020-07-10 |
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| CN112399655A (en) * | 2020-10-12 | 2021-02-23 | 宁波艾克本草纤维有限公司 | Carbon fiber composite electric heating wire |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102237159A (en) * | 2010-04-29 | 2011-11-09 | 神宇通信科技股份公司 | Extrusion process of radio frequency (RF) micro air cooled insulator of coaxial cable |
| CN102285082A (en) * | 2010-12-02 | 2011-12-21 | 晋江恒顺环保节能科技有限公司 | Carbon fiber heater manufacturing equipment and method |
| CN104497576A (en) * | 2014-12-26 | 2015-04-08 | 新乡市方元橡塑密封系统有限公司 | Silicone rubber antifreezing foam tube and preparation method thereof |
| CN105120542A (en) * | 2015-07-29 | 2015-12-02 | 山东英昊电子技术有限公司 | Carbon fiber wire and method of processing and connecting the carbon fiber wire and metal line joint |
| CN106231707A (en) * | 2016-08-17 | 2016-12-14 | 张德来 | Armouring line with heating function and preparation method thereof |
-
2017
- 2017-09-05 CN CN201710791439.4A patent/CN107567120B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102237159A (en) * | 2010-04-29 | 2011-11-09 | 神宇通信科技股份公司 | Extrusion process of radio frequency (RF) micro air cooled insulator of coaxial cable |
| CN102285082A (en) * | 2010-12-02 | 2011-12-21 | 晋江恒顺环保节能科技有限公司 | Carbon fiber heater manufacturing equipment and method |
| CN104497576A (en) * | 2014-12-26 | 2015-04-08 | 新乡市方元橡塑密封系统有限公司 | Silicone rubber antifreezing foam tube and preparation method thereof |
| CN105120542A (en) * | 2015-07-29 | 2015-12-02 | 山东英昊电子技术有限公司 | Carbon fiber wire and method of processing and connecting the carbon fiber wire and metal line joint |
| CN106231707A (en) * | 2016-08-17 | 2016-12-14 | 张德来 | Armouring line with heating function and preparation method thereof |
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| CN107567120A (en) | 2018-01-09 |
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