CN108718471A - A kind of mineral insulation heating cable and preparation method thereof - Google Patents
A kind of mineral insulation heating cable and preparation method thereof Download PDFInfo
- Publication number
- CN108718471A CN108718471A CN201810673614.4A CN201810673614A CN108718471A CN 108718471 A CN108718471 A CN 108718471A CN 201810673614 A CN201810673614 A CN 201810673614A CN 108718471 A CN108718471 A CN 108718471A
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- China
- Prior art keywords
- heating
- core wire
- stainless steel
- connecting sleeve
- tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 91
- 238000009413 insulation Methods 0.000 title claims abstract description 36
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 21
- 239000011707 mineral Substances 0.000 title claims abstract description 21
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 239000010935 stainless steel Substances 0.000 claims abstract description 31
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 31
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000000463 material Substances 0.000 claims abstract description 26
- 239000000945 filler Substances 0.000 claims abstract description 18
- 206010037660 Pyrexia Diseases 0.000 claims abstract description 17
- 239000000395 magnesium oxide Substances 0.000 claims abstract description 17
- 239000011810 insulating material Substances 0.000 claims abstract description 14
- 239000011241 protective layer Substances 0.000 claims abstract description 14
- 238000000137 annealing Methods 0.000 claims abstract description 8
- 239000004033 plastic Substances 0.000 claims abstract description 6
- 229920003023 plastic Polymers 0.000 claims abstract description 6
- 238000001514 detection method Methods 0.000 claims abstract description 5
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 4
- 229910052751 metal Inorganic materials 0.000 claims description 26
- 239000002184 metal Substances 0.000 claims description 26
- 230000001012 protector Effects 0.000 claims description 13
- 229920002313 fluoropolymer Polymers 0.000 claims description 7
- 239000010410 layer Substances 0.000 claims description 7
- MARDFMMXBWIRTK-UHFFFAOYSA-N [F].[Ar] Chemical compound [F].[Ar] MARDFMMXBWIRTK-UHFFFAOYSA-N 0.000 claims description 6
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 238000000465 moulding Methods 0.000 claims description 3
- 229910001120 nichrome Inorganic materials 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000001125 extrusion Methods 0.000 abstract description 2
- 238000009785 tube rolling Methods 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003063 flame retardant Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/40—Heating elements having the shape of rods or tubes
- H05B3/54—Heating elements having the shape of rods or tubes flexible
- H05B3/56—Heating cables
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/10—Heater elements characterised by the composition or nature of the materials or by the arrangement of the conductor
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
- H05B2203/017—Manufacturing methods or apparatus for heaters
Abstract
The invention discloses a kind of mineral insulation heating cables and preparation method thereof, the front end that the front end of the heating tube stretches to connecting sleeve is welded to connect with it, the outside of the connecting sleeve is welded to connect with stainless steel sheath, the heating tube includes outer tube, insulation filler and fever core wire, insulation filler is equipped in the outer tube, the insulation filler center is equipped with fever core wire, the fever core wire stretches into stainless steel sheath to be connected with heating wires, the outside of the heating wires is equipped with protective layer, the protective layer is interior equipped with magnesia filler with stainless steel sheath, the preparation method of the present invention, include the following steps：Processing is dried in ready insulating materials；Core wire material is straightened；Assembling insulating materials and core wire material simultaneously toast；In addition tube rolling makes the density bigger of magnesia, safety ensure that；By assembled material vertical pulling；It is carefully drawn after annealing, is detected after stabilizing annealing；By the material extrusion molding of detection, product is done into cold end manufacture, cold end is connected；Squeeze plastic sheath, detection, output new product.
Description
Technical field
The present invention relates to production and processing fields more particularly to a kind of mineral insulation heating cable and preparation method thereof.
Background technology
The purposes of mineral insulation heating cable is very extensive, extensively using for pipeline tracing, pavement snow melting, tunnel deicing, family
With large-scale public places such as floor heating, house, commercial affairs, apartment, hotel, markets.Currently, the heating cable of domestic production uses polyester
The heating cable of film covered insulating however, the mechanical strength of such heating cable is relatively low, and does not have corrosion resistance,
It therefore can not be in the occasion for requiring anti-corrosion or buried application, in addition, common magnesia cable exists in manufacture and application aspect
It is big equipment investment, the length of complex production process, cable production is subject to certain restrictions, transport, the laying installation of circuit, heating
Poor performance and it is inconvenient to use the problems such as, in addition, since original heating cable is embedded in underground for a long time, protection is inadequate, causes
Short circuit, humidity is excessive, and insulativity decline leads to the insecurity such as electric leakage, short circuit, therefore the cable of general type cannot
Meet present various demands.
Invention content
Goal of the invention：Original heating cable corrosion resistance to be solved by this invention is poor, and heating properties are poor, manufacture input
Greatly, safety is low, big using limitation, and heating cable is embedded in underground for a long time, and protection is inadequate, causes short circuit, and humidity is excessive,
Insulativity declines the technical problem for leading to electric leakage, short circuit.A kind of mineral insulation heating cable of present invention offer and preparation method thereof.
Technical solution：A kind of mineral insulation heating cable, including：Heating tube, connecting sleeve, stainless steel sheath, it is described to add
The front end that the front end of heat pipe stretches to connecting sleeve is welded to connect with it, and outside and the stainless steel sheath of the connecting sleeve weld
Connection, the heating tube include outer tube, insulation filler and fever core wire, and insulation filler, institute are equipped in the outer tube
It states insulation filler center and is equipped with fever core wire, the fever core wire stretches into stainless steel sheath to be connected with heating wires, institute
The outside for stating heating wires is equipped with protective layer, and the protective layer is interior equipped with magnesia filler with stainless steel sheath.
Wherein, the heating tube is mutually welded with connecting sleeve by interior pad, the connecting sleeve and stainless steel sheath
It is mutually welded by outside weld contact.
Wherein, it is connected with metal protection protector on the outside of the heating tube, connecting sleeve and stainless steel sheath.
Wherein, the outside of the metal protection protector is equipped with fluoroplastics housing.
Wherein, the fever core wire is nichrome material, and the insulation filler is magnesium oxide material.
The present invention also provides a kind of preparation methods of mineral insulation heating cable, include the following steps：
（1）Prepare alloy core wire, insulating materials, metal pipe material；
（2）Processing is dried to insulating materials；
（3）It is more straight to core wire, metal pipe material；
（4）Core wire, insulating materials and metal pipe material are assembled, insulating materials is filled between core wire and metal pipe material, into
Row baking, compacting form heating tube；
（5）Rolling tube is added, magnesia density is increased；
（6）Heating tube vertical pulling, processing annealing, thin to draw, stabilizing annealing；
（7）Heating tube detects, finished product molding；
（8）The front end that the front end of heating tube is stretched to manufactured connecting sleeve carries out the weldering welding of argon fluorine, will be in heating tube
Heating core wire is drawn, and upper two heating wires are ironed in heating core wire, protective layer is wrapped on the outside of heating wires, will be machined
Good stainless steel sleeve pipe passes through heating wires to carry out the weldering of argon fluorine with it to the front side of connecting sleeve and welds, in protective layer and stainless steel
Magnesium oxide material is filled between casing, and carries out rolling tube, compacting；
（9）Metal protection protector is wrapped on the outside of the heating tube, connecting sleeve and stainless steel sleeve pipe being welded；
（10）It in metal protection protector outer layer, wraps fluoroplastics and squeezes, connect cold end, plastics are compacted to form second layer protection
Set；
（11）Finished product whole detection, output.
A kind of advantageous effect of the preparation method of mineral insulation heating cable of the present invention is：
（1）Simple in structure, crush resistance strength is high, high temperature resistant and can bear in corrosive environment, and service life is long；
（2）Material using magnesia substance as megohmite insulant, to make heating cable have fire prevention, it is fire-retardant, heat safe
Performance, and toxic gas is not will produce, the feature of environmental protection is good；
（3）Outer tube is made of metal material with fever core wire, is fundamentally solved problem of aging, is greatly extended electricity
The service life of cable；
（4）Oversheath highest bearing temperature is up to 350 DEG C, so that cable body has excellent mechanical strength and corrosion resistant property
Can, thermal efficiency height is good, there is vast market prospect；
（5）The second layer plastic sheath of addition is effectively increased corrosion resistance, handles the most basic natural sucting wet problem of metal,
Keep it more durable；
（6）It is uneven or resistance to efficiently solve such as plastic electric heating band, the fever of carbon fiber heating wire floor heating product in the market
The problem of high-temperature behavior difference, also solves the insulativity of mineral insulated cable in the market, and corrosion resistance is inadequate, is embedded in ground for a long time
Beneath, moisture absorption short circuit, electric leakage punctures flimsy problem, increases service life, reach as high as 50 years.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of mineral insulation heating cable of the present invention.
Fig. 2 is a kind of structure diagram of mineral insulation heating cable of the present invention and preparation method thereof.
In figure：1, heating tube, 11, outer tube, 12, insulation filler, 13, fever core wire, 2, connecting sleeve, 3, stainless steel
Sheath, 4, heating wires, 5, protective layer, 6, magnesia filler, 7, interior pad, 8, outside weld contact, 9, metal protection protector,
10, fluoroplastics housing.
Specific implementation mode
It is further elaborated below in conjunction with attached drawing and by specific embodiment to the present invention, it should be pointed out that：For this technique
For the common process personnel in field, without departing from the principle of the present invention, to repairing for various equivalent forms of the invention
Change and falls within the application range as defined in the appended claims.
As shown in Figs. 1-2, a kind of mineral insulation heating cable and preparation method thereof, including：Heating tube 1, connecting sleeve 2,
Stainless steel sheath 3, the front end that the front end of the heating tube 1 stretches to connecting sleeve 2 are welded to connect with it, the connecting sleeve 2
Outside be welded to connect with stainless steel sheath 3, the heating tube 1 include outer tube 11, insulation filler 12 and fever core wire 13,
Insulation filler 12 is equipped in the outer tube 11,12 center of the insulation filler is equipped with fever core wire 13, the heat generating core
Line 13 stretches into stainless steel sheath 3 to be connected with heating wires 4, and the outside of the heating wires 4 is equipped with protective layer 5, the guarantor
Sheath 5 is interior equipped with magnesia filler 6 with stainless steel sheath 3.
Wherein, the heating tube 1 is welded with connecting sleeve 2 by 7 phase of interior pad, the connecting sleeve 2 and stainless steel
Sheath 3 is welded by 8 phase of outside weld contact.
Further, the outside of the heating tube 1, connecting sleeve 2 and stainless steel sheath 3 is connected with metal protection protector 9.
Further, the outside of the metal protection protector 9 is equipped with fluoroplastics housing 10.
Further, the fever core wire 13 is nichrome material, and the insulation filler 12 is magnesium oxide material.
A kind of preparation method of mineral insulation heating cable of the present embodiment, includes the following steps：
（1）Prepare alloy core wire, insulating materials, metal pipe material；
（2）Processing is dried to insulating materials；
（3）It is more straight to core wire, metal pipe material；
（4）Core wire, insulating materials and metal pipe material are assembled, insulating materials is filled between core wire and metal pipe material, into
Row baking, compacting form heating tube；
（5）Rolling tube is added, magnesia density is increased；
（6）Heating tube vertical pulling, processing annealing, thin to draw, stabilizing annealing；
（7）Heating tube detects, finished product molding；
（8）The front end that the front end of heating tube is stretched to manufactured connecting sleeve carries out the weldering welding of argon fluorine, will be in heating tube
Heating core wire is drawn, and upper two heating wires are ironed in heating core wire, protective layer is wrapped on the outside of heating wires, will be machined
Good stainless steel sleeve pipe passes through heating wires to carry out the weldering of argon fluorine with it to the front side of connecting sleeve and welds, in protective layer and stainless steel
Magnesium oxide material is filled between casing, and carries out rolling tube, compacting；
（9）Metal protection protector is wrapped on the outside of the heating tube, connecting sleeve and stainless steel sleeve pipe being welded；
（10）It in metal protection protector outer layer, wraps fluoroplastics and squeezes, connect cold end, plastics are compacted to form second layer protection
Set；
（11）Finished product whole detection, output.
A kind of mineral insulation heating cable provided by the invention and preparation method thereof, the heating construction of cable is simple, anti-extrusion
Intensity is high, high temperature resistant and can bear in corrosive environment, and service life is long；Oversheath highest bearing temperature up to 350 DEG C,
Preparation process is simple, and technique input cost is low.Thermal efficiency height is good, there is vast market prospect.
Claims (6)
1. a kind of mineral insulation heating cable, which is characterized in that including：Heating tube, connecting sleeve, stainless steel sheath, it is described to add
The front end that the front end of heat pipe stretches to connecting sleeve is welded to connect with it, and outside and the stainless steel sheath of the connecting sleeve weld
Connection, the heating tube include outer tube, insulation filler and fever core wire, and insulation filler, institute are equipped in the outer tube
It states insulation filler center and is equipped with fever core wire, the fever core wire stretches into stainless steel sheath to be connected with heating wires, institute
The outside for stating heating wires is equipped with protective layer, and the protective layer is interior equipped with magnesia filler with stainless steel sheath.
2. a kind of mineral insulation heating cable according to claim 1, which is characterized in that the heating tube is logical with connecting sleeve
It crosses interior pad mutually to weld, the connecting sleeve is mutually welded with stainless steel sheath by outside weld contact.
3. a kind of mineral insulation heating cable according to claim 1, which is characterized in that the heating tube, connecting sleeve and
Metal protection protector is connected on the outside of stainless steel sheath.
4. according to claim 1,3 any a kind of mineral insulation heating cables, which is characterized in that the metal protection protector
Outside is equipped with fluoroplastics housing.
5. a kind of mineral insulation heating cable according to claim 1, which is characterized in that the fever core wire is nichrome
Material, the insulation filler are magnesium oxide material.
6. according to a kind of any preparation methods of mineral insulation heating cable of claim 1-5, which is characterized in that including with
Lower step：
（1）Prepare alloy core wire, insulating materials, metal pipe material；
（2）Processing is dried to insulating materials；
（3）It is more straight to core wire, metal pipe material；
（4）Core wire, insulating materials and metal pipe material are assembled, insulating materials is filled between core wire and metal pipe material, into
Row baking, compacting form heating tube；
（5）Rolling tube is added, magnesia density is increased；
（6）Heating tube vertical pulling, processing annealing, thin to draw, stabilizing annealing；
（7）Heating tube detects, finished product molding；
（8）The front end that the front end of heating tube is stretched to manufactured connecting sleeve carries out the weldering welding of argon fluorine, will be in heating tube
Heating core wire is drawn, and upper two heating wires are ironed in heating core wire, protective layer is wrapped on the outside of heating wires, will be machined
Good stainless steel sleeve pipe passes through heating wires to carry out the weldering of argon fluorine with it to the front side of connecting sleeve and welds, in protective layer and stainless steel
Magnesium oxide material is filled between casing, and carries out rolling tube, compacting；
（9）Metal protection protector is wrapped on the outside of the heating tube, connecting sleeve and stainless steel sleeve pipe being welded；
（10）It in metal protection protector outer layer, wraps fluoroplastics and squeezes, connect cold end, plastics are compacted to form second layer protection
Set；
（11）Finished product whole detection, output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810673614.4A CN108718471A (en) | 2018-06-27 | 2018-06-27 | A kind of mineral insulation heating cable and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810673614.4A CN108718471A (en) | 2018-06-27 | 2018-06-27 | A kind of mineral insulation heating cable and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108718471A true CN108718471A (en) | 2018-10-30 |
Family
ID=63912311
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810673614.4A Pending CN108718471A (en) | 2018-06-27 | 2018-06-27 | A kind of mineral insulation heating cable and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108718471A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85109703A (en) * | 1985-12-09 | 1987-06-24 | 国际壳牌研究有限公司 | Long underground interval heating means of distance of high temperature and device |
| CN104540253A (en) * | 2014-12-18 | 2015-04-22 | 博太科防爆设备（上海）有限公司 | Dual-core fireproof mineral insulated heating cable circuit structure and manufacturing method thereof |
| CN205648036U (en) * | 2016-05-23 | 2016-10-12 | 山东华宁电伴热科技有限公司 | Take sheath mineral insulation heating cable |
| CN107041023A (en) * | 2017-06-05 | 2017-08-11 | 湖南中德电热科技有限公司 | A kind of heating cable joint |
| CN208675569U (en) * | 2018-06-27 | 2019-03-29 | 杨贵星 | A kind of mineral insulation heating cable |
-
2018
- 2018-06-27 CN CN201810673614.4A patent/CN108718471A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN85109703A (en) * | 1985-12-09 | 1987-06-24 | 国际壳牌研究有限公司 | Long underground interval heating means of distance of high temperature and device |
| CN104540253A (en) * | 2014-12-18 | 2015-04-22 | 博太科防爆设备（上海）有限公司 | Dual-core fireproof mineral insulated heating cable circuit structure and manufacturing method thereof |
| CN205648036U (en) * | 2016-05-23 | 2016-10-12 | 山东华宁电伴热科技有限公司 | Take sheath mineral insulation heating cable |
| CN107041023A (en) * | 2017-06-05 | 2017-08-11 | 湖南中德电热科技有限公司 | A kind of heating cable joint |
| CN208675569U (en) * | 2018-06-27 | 2019-03-29 | 杨贵星 | A kind of mineral insulation heating cable |
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