CN105128359A - Processing technology for carbon-fiber heating tube - Google Patents
Processing technology for carbon-fiber heating tube Download PDFInfo
- Publication number
- CN105128359A CN105128359A CN201510384048.1A CN201510384048A CN105128359A CN 105128359 A CN105128359 A CN 105128359A CN 201510384048 A CN201510384048 A CN 201510384048A CN 105128359 A CN105128359 A CN 105128359A
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- CN
- China
- Prior art keywords
- carbon
- carbon fiber
- fibre strips
- nanometer
- fibre
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
Abstract
The invention discloses a processing technology for a carbon-fiber heating tube. The technical scheme main points comprise the following steps: braiding long-strip carbon fiber filaments by using carbon fiber; using a braiding machine to braid a carbon fiber strip by using the obtained carbon fiber filaments; using the obtained carbon fiber strip to wind a quartz tube in a staggered way; performing shaping processing on the carbon fiber strip winding the quartz tube; performing fixing processing on the carbon fiber strip subjected to shaping processing; connecting two ends of the fixed carbon fiber strip with electrodes; connecting the carbon fiber strip connected with the electrodes, a molybdenum rod and a molybdenum sheet according to a sequence, then putting into a nanometer heating quartz tube; performing packaging processing on the two ends of the nanometer heating quartz tube; welding leads to electrodes at the two ends subjected to packaging processing of the nanometer heating quartz tube; and performing vacuumizing processing on the nanometer heating quartz tube welded with leads or filling the nanometer heating quartz tube with inert gas. The carbon fiber strip in the processed carbon fiber heating tube is high in stability and long in service life.
Description
Technical field
The present invention relates to a kind of heating field, more particularly, it relates to a kind of processing technology of carbon fibre heating tube.
Background technology
Be that the electric-heating technology of heater is widely used in every field with metal material.But wire is surperficial oxidizable at high operating temperatures, because oxide layer constantly thickens, cause and effectively reduced by the area of electric current, increase the load of electric current, therefore easily blow.Carbon fiber imparts the performance of its composite excellence with its intrinsic characteristic, it has a series of excellent properties such as high specific strength, high ratio modulus, high temperature resistant, corrosion-resistant, endurance, creep resistant, conduction, heat transfer and thermal coefficient of expansion be little, thus for its application in electric heating industry provide may and inevitable.
The inside of the carbon fibre heating tube adopting conventional machining process to process is carbon fiber that is bar-shaped or pencil, the heat generating fiber that can hold in the outer tube of equal volume is less, stability is not high, service life is shorter, we provide a kind of processing technology of carbon fibre heating tube for this reason, the carbon fibre heating tube gone out through this processes can be had advantages such as stability is strong, long service life.
Summary of the invention
For the deficiency that prior art exists, main purpose of the present invention is to provide that a kind of carbon fibre heating tube stability that can make to process is high, the processing technology of longer service life.
For realizing above-mentioned main purpose, the present invention adopts following technical scheme: a kind of processing technology of carbon fibre heating tube, comprises the steps:
1) carbon fiber knit to be grown up the carbon fiber wire of strip;
2) the carbon fiber wire braider of step 1) gained is woven into carbon-fibre strips;
3) by step 2) carbon-fibre strips of gained staggered be wrapped on quartz ampoule;
4) forming processes is carried out to the carbon-fibre strips be wrapped in step 3) on quartz ampoule;
5) process is cured to the carbon-fibre strips after forming processes in step 4);
6) by the two ends connecting electrode of the carbon-fibre strips after solidification in step 5);
7) be encased in nanometer heated quarty tube by accessing in step 6) after the carbon-fibre strips after electrode, molybdenum rod and molybdenum sheet connect in order;
8) encapsulation process is carried out to the two ends of the nanometer heated quarty tube in step 7);
9) by the nanometer heated quarty tube two ends welding lead after encapsulation process in step 8);
10) process vacuumized to the nanometer heated quarty tube after welding lead in step 9) or be filled with inert gas to nanometer heated quarty tube.
As preferably, the forming processes in step 3) comprises the steps:
Step a, get forming agent;
Step b, quartz ampoule to be all soaked in forming agent together with carbon-fibre strips entirety;
After step c, immersion 1 ~ 2h, quartz ampoule and carbon-fibre strips entirety are taken out.
As preferably, the forming agent in step a is formed according to the proportions of 10:1 by resin and curing agent.
As preferably, the solidification process in step 5) comprises the steps:
Step one, by the heating temperatures of curing oven to 2000 DEG C ± 10 DEG C;
Step 2, carbon-fibre strips put in curing oven and heat-treats;
Step 3, the carbon-fibre strips of taking out after 1 ~ 1.5 hour in curing oven.
As preferably, the two ends being wrapped in the carbon-fibre strips on quartz ampoule are also arranged with quartz column.
Hinge structure of the present invention is compared to be had: have additional quartz column at the two ends of quartz ampoule, quartz column is enclosed within carbon-fibre strips, thus quartz column just can be utilized to realize the fastening of carbon-fibre strips, avoid the phenomenon that the local temperature brought because of the slip of carbon-fibre strips is too high; Simultaneously owing to being vacuum in nanometer heated quarty tube, but also there is the cooling zone of certain length, nanometer heated quarty tube so just can be made can to bear higher temperature, the pressure head at two ends is not easy the opening that bursts, thus effectively can extend the service life of nanometer heated quarty tube, even if when explosion occurs nanometer heated quarty tube, also explosive effect can not be produced, and then the security of use can be guaranteed.
Detailed description of the invention
A processing technology for carbon fibre heating tube, comprises step below:
The first step, length according to the model of heat-generating pipe and the carbon-fibre strips of needs, the carbon fiber wire of strip that carbon fiber knit is grown up;
Second step, the carbon fiber wire braider of strip to be woven, carbon fiber wire is woven into the carbon-fibre strips of about 3mm;
3rd step, carbon-fibre strips cross winding on quartz ampoule, be covered with the surface of quartz ampoule, utilize quartz ampoule to form preliminary support to carbon-fibre strips;
The carbon-fibre strips that 4th step, centering are wrapped on quartz ampoule carries out forming processes, and this forming processes comprises step below:
Step a, resin and curing agent are made into forming agent according to the ratio of 10:1;
Step b, quartz ampoule to be all dipped in forming agent together with carbon-fibre strips entirety;
Step c, to soak after 1 ~ 2h, by quartz ampoule and carbon-fibre strips again entirety take out.
Wherein, immersion duration is 1 ~ 2h, the immersion duration of carbon-fibre strips is preferably 1.5 hours, because the immersion duration of 1.5 hours, the osmotic effect of forming agent reaches maximization substantially, that is carbon-fibre strips now can reach one and preferably soak effect, realize the preliminary sizing to carbon-fibre strips, strengthen the object of the hardness of whole carbon-fibre strips, consider that the time of immersion extends again simultaneously, molding effect for carbon-fibre strips changes little, therefore preferably soak 1.5 hours, the soak time of carbon-fibre strips can be saved so again to a certain extent, improve production efficiency.
5th step, be cured process to the carbon-fibre strips after forming processes, this solidification process comprises step below:
Step one, first by the heating temperatures of curing oven to about 2000 DEG C, be no more than 10 DEG C about temperature gap;
Step 2, carbon-fibre strips is put in curing oven heat-treat again;
Step 3, heat treatment took out carbon-fibre strips after 1 ~ 1.5 hour in curing oven.
Before carbon-fibre strips being loaded in nanometer heated quarty tube, carry out solidifying process to carbon-fibre strips, further increase the hardness of carbon-fibre strips, like this after carbon-fibre strips loads in nanometer heated quarty tube, carbon-fibre strips just has higher stability, can not run-off the straight phenomenon, avoids the contact of carbon-fibre strips and nanometer heated quartz inside pipe wall, thus the local temperature of nanometer heated quartz inside pipe wall also would not be caused too high, and then extend the service life of carbon fibre heating tube.
It should be noted that, the temperature of curing oven controls in 2000 DEG C, and the solidification effect of carbon-fibre strips is best, and the hardness of the carbon-fibre strips obtained is the highest.
The two ends connecting electrode of the 6th step, carbon-fibre strips after hardening;
7th step, get a nanometer heated quarty tube, be encased in nanometer heated quarty tube after quartz ampoule and carbon-fibre strips, molybdenum rod and the molybdenum sheet be wound on quartz ampoule are connected in order, wherein one end of molybdenum rod and electrode connect, the other end and molybdenum sheet connect, molybdenum sheet then links together with insulation porcelain, formation cooling zone, region between molybdenum sheet and electrode, and ensure that the cooling zone at nanometer heated quarty tube two ends all has certain length.
In this step, consider that the carbon-fibre strips be wrapped on quartz ampoule can be slided along the length direction of quartz ampoule, cause the local of the carbon-fibre strips on quartz ampoule compact, cause the carbon-fibre strips heating of compact place too much and temperature is too high, therefore also have additional quartz column at the two ends of quartz ampoule, quartz column is enclosed within carbon-fibre strips, thus quartz column just can be utilized to realize the fastening of carbon-fibre strips, avoids the phenomenon that the local temperature brought because of the slip of carbon-fibre strips is too high.
Simultaneously also can also set up quartzy sleeve column in the junction of carbon-fibre strips and molybdenum rod, enable quartzy sleeve column carbon-fibre strips and molybdenum rod being fixed together tightly, avoid the disengaging of molybdenum rod and carbon-fibre strips in heating process, have influence on heating effect.
Guarantee that the cooling zone at nanometer heated quarty tube two ends has certain length, because the cooling of carbon-fibre strips in heating process can be conducive to like this, extend the service life of carbon-fibre strips further.
8th step, carry out respectively adding hot extrusion at the two ends of nanometer heated quarty tube, nanometer heated quarty tube after thermoplastic is under the clamping of mould, make its two ends each formation pressure head respectively, realize the sealing of nanometer heated quarty tube inside, complete the encapsulation of nanometer heated quarty tube, will ensure that these two molybdenum sheets are corresponding respectively simultaneously and be fixed in these two pressure heads.
9th step, at nanometer heated quarty tube two ends respectively fixed insulation porcelain, molybdenum sheet is fixed in insulation porcelain, wire and molybdenum sheet is welded together, and such wire just can by molybdenum sheet realization and the molybdenum rod of nanometer heated quarty tube inside, the connection of electrode.
Tenth step, on the cooling zone of nanometer heated quarty tube, offer a steam vent, vacuumize from steam vent subtend nanometer heated quarty tube, after having vacuumized, steam vent is sealed.
Steam vent is offered in cooling zone, weak spot would not be formed like this at the middle part of nanometer heated quarty tube, effectively prevent nanometer heated quarty tube breaking in heating process, simultaneously owing to being vacuum in nanometer heated quarty tube, but also there is the cooling zone of certain length, nanometer heated quarty tube so just can be made can to bear higher temperature, the pressure head at two ends is not easy the opening that bursts, thus effectively can extend the service life of nanometer heated quarty tube, even if when there is explosion in nanometer heated quarty tube, also explosive effect can not be produced, and then the security of use can be guaranteed.
Inert gas can certainly be filled with from steam vent in nanometer heated quarty tube, so also can reach same effect, this time not repeat.
The above is only the preferred embodiment of the present invention, protection scope of the present invention be not only confined to above-described embodiment, and all technical schemes belonged under thinking of the present invention all belong to protection scope of the present invention.It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principles of the present invention, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. a processing technology for carbon fibre heating tube, comprises the steps:
1) carbon fiber knit to be grown up the carbon fiber wire of strip;
2) the carbon fiber wire braider of step 1) gained is woven into carbon-fibre strips;
3) by step 2) carbon-fibre strips of gained staggered be wrapped on quartz ampoule;
4) forming processes is carried out to the carbon-fibre strips be wrapped in step 3) on quartz ampoule;
5) process is cured to the carbon-fibre strips after forming processes in step 4);
6) by the two ends connecting electrode of the carbon-fibre strips after solidification in step 5);
7) be encased in nanometer heated quarty tube by accessing in step 6) after the carbon-fibre strips after electrode, molybdenum rod and molybdenum sheet connect in order;
8) encapsulation process is carried out to the two ends of the nanometer heated quarty tube in step 7);
9) by the nanometer heated quarty tube two ends welding lead after encapsulation process in step 8);
10) process vacuumized to the nanometer heated quarty tube after welding lead in step 9) or be filled with inert gas to nanometer heated quarty tube.
2. processing technology according to claim 1, is characterized in that: the forming processes in step 3) comprises the steps:
Step a, get forming agent;
Step b, quartz ampoule to be all soaked in forming agent together with carbon-fibre strips entirety;
After step c, immersion 1 ~ 2h, quartz ampoule and carbon-fibre strips entirety are taken out.
3. processing technology according to claim 2, is characterized in that: the forming agent in step a is formed according to the proportions of 10:1 by resin and curing agent.
4. processing technology according to claim 1, is characterized in that: the solidification process in step 5) comprises the steps:
Step one, by the heating temperatures of curing oven to 2000 DEG C ± 10 DEG C;
Step 2, carbon-fibre strips put in curing oven and heat-treats;
Step 3, the carbon-fibre strips of taking out after 1 ~ 1.5 hour in curing oven.
5. processing technology according to claim 1, is characterized in that: the two ends being wrapped in the carbon-fibre strips on quartz ampoule are also arranged with quartz column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510384048.1A CN105128359A (en) | 2015-07-03 | 2015-07-03 | Processing technology for carbon-fiber heating tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510384048.1A CN105128359A (en) | 2015-07-03 | 2015-07-03 | Processing technology for carbon-fiber heating tube |
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| CN105128359A true CN105128359A (en) | 2015-12-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510384048.1A Pending CN105128359A (en) | 2015-07-03 | 2015-07-03 | Processing technology for carbon-fiber heating tube |
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| CN (1) | CN105128359A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110167211A (en) * | 2019-03-29 | 2019-08-23 | 江苏华锦新材料科技有限公司 | A kind of processing technology of carbon fibre heating tube |
| WO2020011017A1 (en) * | 2018-07-11 | 2020-01-16 | 江苏先丰纳米材料科技有限公司 | High-efficiency energy-saving heating tube and preparation method therefor |
| CN112165740A (en) * | 2020-10-09 | 2021-01-01 | 河源市信大石英电器有限公司 | Long-life and high-thermal-efficiency carbon fiber heating pipe and preparation process thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06129778A (en) * | 1992-10-15 | 1994-05-13 | Toray Ind Inc | Heating furnace |
| CN1809224A (en) * | 2006-01-19 | 2006-07-26 | 山东大学 | Preparation method of core-less carbon fiber spiral coil electrical heating element |
| CN101102625A (en) * | 2006-07-07 | 2008-01-09 | 李波 | Production method of carbon fiber heating body for infrared heating tube |
| CN101659553A (en) * | 2009-09-15 | 2010-03-03 | 程显军 | Preparation method of spiral carbon fiber heating body |
| CN102457996A (en) * | 2010-10-22 | 2012-05-16 | 乐金电子(天津)电器有限公司 | Barbecue tube and microwave oven using same |
-
2015
- 2015-07-03 CN CN201510384048.1A patent/CN105128359A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06129778A (en) * | 1992-10-15 | 1994-05-13 | Toray Ind Inc | Heating furnace |
| CN1809224A (en) * | 2006-01-19 | 2006-07-26 | 山东大学 | Preparation method of core-less carbon fiber spiral coil electrical heating element |
| CN101102625A (en) * | 2006-07-07 | 2008-01-09 | 李波 | Production method of carbon fiber heating body for infrared heating tube |
| CN101659553A (en) * | 2009-09-15 | 2010-03-03 | 程显军 | Preparation method of spiral carbon fiber heating body |
| CN102457996A (en) * | 2010-10-22 | 2012-05-16 | 乐金电子(天津)电器有限公司 | Barbecue tube and microwave oven using same |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020011017A1 (en) * | 2018-07-11 | 2020-01-16 | 江苏先丰纳米材料科技有限公司 | High-efficiency energy-saving heating tube and preparation method therefor |
| CN110167211A (en) * | 2019-03-29 | 2019-08-23 | 江苏华锦新材料科技有限公司 | A kind of processing technology of carbon fibre heating tube |
| CN112165740A (en) * | 2020-10-09 | 2021-01-01 | 河源市信大石英电器有限公司 | Long-life and high-thermal-efficiency carbon fiber heating pipe and preparation process thereof |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151209 |