CN102858040A - Electric heating pipe manufacturing method - Google Patents
Electric heating pipe manufacturing method Download PDFInfo
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- CN102858040A CN102858040A CN2012103390556A CN201210339055A CN102858040A CN 102858040 A CN102858040 A CN 102858040A CN 2012103390556 A CN2012103390556 A CN 2012103390556A CN 201210339055 A CN201210339055 A CN 201210339055A CN 102858040 A CN102858040 A CN 102858040A
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Abstract
The invention relates to an electric heating pipe and a manufacturing method thereof. The manufacturing method includes winding a double-wire-ring resistance wire in a preset length, fixedly sleeving two ends of the resistance wire on upper wire stations of two wire rods, and obtaining a double-resistance-wire component; arranging the double-resistance-wire component in a metal pipe, adding insulation powder into the metal pipe via a powder adding machine, vibrating powder by a power vibrating machine, and obtaining an electric heating pipe component; and contracting the electric heating pipe component by a pipe contracting machine according to the preset size, and obtaining the finished electric heating pipe in corresponding size. For long electric heating pipes low in rated voltage and high in rated power, the parallel-connection double-resistance-wire structure is adopted, the diameter of the resistance wires is reduced, and winding of the resistance wires is realized. Meanwhile, load of the resistance wires is reduced, and the service life of the electric heating pipe is prolonged. In addition, procedures of pretensioning and ohmic-heating pretensioning before powder filling of the resistance wires are added, and the problem that the welded joints of the upper wire stations of the resistance wires and the wire rods are easy to break by tensioning during powder vibrating and pipe contracting is solved.
Description
The application divides an application, the application number of original application: 201210030828.2, and the applying date: 2012-2-13, invention and created name " a kind of electric heating tube and manufacture method thereof ".
Technical field
The present invention relates to a kind of manufacture method of electric heating tube.
Background technology
The voltage range of every country different (100V-440V), the power bracket of electric heating tube different (100W-5000W), environment for use is different, and the caliber of electric heating tube is not equal, and this just requires resistance wire designing requirement and the manufacturing process of product more and more higher.At home, although electric heating tube is produced the time in 20 years, but the electric heating tube manufacturing technology is also very backward, a lot of rated voltages are little but product that rated power is large because of the restriction of production technology, make single resistance wire diameter too high than ambassador's resistance wire intensity, cause the spiral filament forming machine can't wrapping wire, the reach the standard grade weld of position of resistance wire ring and lead-in wire rod be broken easily in dress powder process and the draw process, causes the problem that can't make more than the electrothermal tube pipe range 1500mm; For the selected tubing of domestic electric heating pipe (Φ 6.2mm, 6.5mm, 8.0mm, 8.5mm), little for rated voltage, and the large product of rated power, satisfy the resistance requirement, if adopt single resistance wire structure, the resistance wire diameter is increased, cause the resistance wire bending strength excessive, the coiling distance of resistance wire ring external diameter and electric heating tube inwall is too short, has a strong impact on the electric property of electrothermal tube.
Summary of the invention
The technical problem to be solved in the present invention provides the manufacture method of the little and electric heating tube that rated power is large of a kind of rated voltage.
For solving the problems of the technologies described above, the present invention is by a kind of manufacture method of electric heating tube, it comprises: the 1. mariages ring type resistance wire of coiling one preset length, then with the two ends of this mariages ring type resistance wire respectively fixed cover be located on the position of reaching the standard grade of two lead-in wire rods, obtain two resistance wire assemblies; 2. described pair of resistance wire assembly is located in the metal tube, and used powder feeding machine in described metal tube, to add insulating powder (being generally insulating oxide magnesium powder), then adopt the powder machine that the shakes powder that shakes, obtain electric heating tube component; 3. use machine for shrinking that described electric heating tube component is carried out the draw by pre-set dimension, obtain the electric heating tube of corresponding size.
Further, for reducing the diameter of resistance wire, improve the plasticity of resistance wire, the resistance wire diameter of employing is 0.30-0.65mm.
Execution in step 2. before, if described metal tube pipe range is more than 1000mm, and this pipe range is 2.5～4.0 times of mariages ring type resistance wire length, then with pretension fixing device described pair of resistance wire assembly elongated 1.6～3.5 times, in the follow-up powder process of shaking, to leave surplus as two again being elongated of resistance wire assembly, prevent that mariages ring type resistance wire and the weld of the position of reaching the standard grade of lead-in wire rod from being broken in the powder process of shaking.
Further, in order to improve the fastness of the excellent sheathed mariages circle in position of reaching the standard grade of lead-in wire, the position of reaching the standard grade of described lead-in wire rod is the taper thread structure.
Further, be the convenient prestretching of implementing, avoid mariages ring type resistance wire and the weld of the position of reaching the standard grade of lead-in wire rod in shake powder and draw process, to be broken, when elongating described pair of resistance wire assembly, if the diameter of resistance wire is 0.30-0.42mm, then adopt pretension fixing device directly to elongate described pair of resistance wire assembly; If the diameter of resistance wire is 0.45～0.65mm, then first add power source at described two lead-in wire rods, described mariages circle is heated and controls its temperature in 500～750 ℃ of scopes, then with pretension fixing device it is elongated.
For solving the technical problem that rated voltage is little and rated power is large, the invention provides a kind of electric heating tube, its resistance wire assembly, comprise: pair of lead wires rod, by the mariages ring type resistance wire that two resistance wires turn to, the two ends of described mariages ring type resistance wire respectively fixed cover are located on the position of reaching the standard grade of described pair of lead wires rod.
Further, reduce the diameter of resistance wire, improve the plasticity of resistance wire, the resistance wire diameter of described formation mariages circle is 0.30-0.65mm.
Further, in order to improve the fastness of the excellent sheathed mariages circle in position of reaching the standard grade of lead-in wire, the position of reaching the standard grade of described lead-in wire rod is the taper thread structure.
The technique effect that the present invention has: (1) is little for rated voltage, and the electric heating tube that rated power is large and pipe range is long, the structure of employing two resistance wires in parallel reduces the resistance wire diameter, realizes the resistance wire wrapping wire; Reduce simultaneously the resistance wire load, increased electrothermal tube useful life; (2) increase the operation that the resistance wire ring fills the front prestretching of powder and energising heating prestretching, solution is shaken a weld of reaching the standard grade of mariages ring type resistance wire and lead-in wire rod is broken easily in powder and the draw process problem (because be close together between the resistance wire ring silk before the powder that shakes, shake and pulled open between the circle silk behind the powder, in draw process, again pulled open), and can better guarantee the uniformity that resistance wire is arranged; (3) reduce the resistance wire diameter, increase the creepage distance of resistance wire ring external diameter and inside pipe wall, guarantee the electric property of electrothermal tube.
Description of drawings
For content of the present invention is more likely to be clearly understood, below the specific embodiment and by reference to the accompanying drawings of basis, the present invention is further detailed explanation, wherein
Fig. 1 is the structural representation of the two resistance wire assemblies of parallel connection of the present invention;
Fig. 2 is the structural representation of the electric heating tube of the two resistance wires of parallel connection of the present invention.
Embodiment
The present invention is described in detail below in conjunction with drawings and Examples:
Because the tubing restriction (Φ 6.2mm, 6.5mm, 8.0mm, 8.5mm) that the domestic electric heating pipe is selected, if the resistance wire of electric heating tube adopts the structure of two resistance wire circuit in parallel, then rated voltage is little, the electric heating tube that rated power is large can adopt less resistance wire diameter processing, the electric heating tube caliber is that Φ 6.2mm, wall thickness are 0.5mm, and resistance wire ring outer diameter D is controlled at Φ 1.8～2.6mm; Caliber is that Φ 6.5mm, wall thickness are 0.5mm, and resistance wire ring outer diameter D is controlled at Φ 1.8～2.8mm; Caliber is that Φ 8.0mm, wall thickness are 0.5mm, and resistance wire ring outer diameter D is controlled at Φ 1.8～4.3mm; Caliber is that Φ 8.5mm, wall thickness are 0.5mm, and resistance wire ring outer diameter D is controlled at Φ 1.8～4.8mm; Reduce the resistance wire diameter, increase the creepage distance of resistance wire ring outer diameter D and inside pipe wall, guarantee the electric property of electrothermal tube.
See Fig. 1, the electric heating tube of present embodiment, the resistance wire assembly that it adopts comprises: pair of lead wires rod 1, the mariages ring type resistance wire 2 that is turned to by two resistance wires, the two ends of described mariages ring type resistance wire 2 are set in respectively on the position 4 of reaching the standard grade of two lead-in wire rods 1, and fixing with mariages circle 2 the described position 4 of reaching the standard grade by welding.
The resistance wire diameter d 1 of described formation mariages circle 2 is 0.30-0.65mm.
The taper thread structure can be adopted in the position 4 of reaching the standard grade of described lead-in wire rod 1.
The manufacture method of above-mentioned electric heating tube, it comprises:
1. coaxial another wire feed rolls of setting up of one side of the wire feed rolls on the monofilament spiral filament forming machine, make two resistance wires can enter simultaneously described monofilament spiral filament forming machine and turn to mariages ring type resistance wire 2, then the two ends of described mariages ring type resistance wire 2 be set in respectively two the lead-in wire excellent 1(be also referred to as cold pin) reach the standard grade the position 4 on, by welding the position 4 of reaching the standard grade of described lead-in wire rod 1 is fixed with the end of mariages circle 2, consisted of two resistance wire assemblies;
If 2. the pipe range of the metal tube 3 of formation electric heating tube is below 1000mm, then need not to elongate; If the pipe range of the metal tube 3 of formation electric heating tube is more than 1000mm, and this pipe range is 2.5～4.0 times of mariages ring type resistance wire 2 length, then with pretension fixing device described pair of resistance wire assembly elongated 1.6～3.5 times, thereby be that the again elongation of two resistance wire assemblies left surplus during the follow-up powder that shakes was processed; 3. being set in the two resistance wire assemblies after the described elongation in the described metal pipe material and using powder feeding machine to add insulating powder 5(in the described metal tube is magnesia powder), then the powder that shakes processing (work of powder feeding machine comprises: be located at pair resistance wire assemblies in the described metal pipe material and again elongate, powder shakes), obtain electric heating tube component; 4. use machine for shrinking that this electric heating tube component is carried out draw processing, the last extremely directly standard size length of elongating of electric heating tube component, for example: in machine for shrinking the tubing of Φ 8.0mm is rolled the 6.5mm to Φ through roller, pipe range increases simultaneously.
When two resistance wire assemblies are elongated, if the diameter of resistance wire then directly elongates resistance wire in the 0.30-0.42mm scope; If the diameter of resistance wire is 0.45～0.65mm, then first add power source at described two lead-in wire rods, described mariages circle is heated and controls its temperature in 500～750 ℃ of scopes, then with pretension fixing device it is elongated.In the standard specification resistance wire without the resistance wire between the diameter 0.42-0.45mm.
If need the electric heating tube of manufacturing, its voltage 110V, power 1800W, electric heating tube caliber are that Φ 6.5mm, wall thickness are that 0.5mm, efficient heat generation pipe range are 2000mm.If adopt monofilament will select Φ 0.90mm resistance wire, spiral filament forming machine can't be processed into the resistance wire ring, and the creepage distance of resistance wire ring external diameter and inside pipe wall do not reach requirement, and the electric property of electrothermal tube can't guarantee; Just can select Φ 0.55mm resistance wire if adopt two resistance wire in parallel, the wrapping wire function is processed into mariages ring type resistance wire, resistance wire ring external diameter is controlled at Φ 2.8mm like this, can guarantee the electric property of electrothermal tube, the resistance wire ring shakes, and energising is heated to 700 ℃ before the powder, heat is moved 1600mm in advance to, avoids mariages ring type resistance wire and a weld of reaching the standard grade of lead-in wire rod to break in shake powder and draw manufacturing.
Obviously, above-described embodiment only is for example of the present invention clearly is described, and is not to be restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give all execution modes exhaustive.And these belong to apparent variation or the change that spirit of the present invention extended out and still are among protection scope of the present invention.
Claims (1)
1. the manufacture method of an electric heating tube comprises:
1. the mariages ring type resistance wire (2) of coiling one preset length, then with the two ends of this mariages ring type resistance wire (2) respectively fixed cover be located on the position (4) of reaching the standard grade of two lead-in wire rods (1), obtain two resistance wire assemblies;
2. described pair of resistance wire assembly is located in the metal tube (3), and used powder feeding machine in described metal tube, to add insulating powder (5), then adopt the powder machine that the shakes powder that shakes, obtain electric heating tube component;
3. use machine for shrinking that described electric heating tube component is carried out the draw by pre-set dimension, obtain the electric heating tube of corresponding size;
Execution in step 2. before, if described metal tube pipe range more than 1000mm, and this pipe range is 2.5～4.0 times of mariages ring type resistance wire (2) length, then with pretension fixing device described pair of resistance wire assembly elongated 1.6～3.5 times;
The position (4) of reaching the standard grade of described lead-in wire rod (1) is the taper thread structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210339055.6A CN102858040B (en) | 2012-02-13 | 2012-02-13 | A kind of manufacture method of electric heating tube |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210030828.2A CN102595670B (en) | 2012-02-13 | 2012-02-13 | Electric heating pipe and manufacturing method thereof |
| CN201210339055.6A CN102858040B (en) | 2012-02-13 | 2012-02-13 | A kind of manufacture method of electric heating tube |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210030828.2A Division CN102595670B (en) | 2012-02-13 | 2012-02-13 | Electric heating pipe and manufacturing method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102858040A true CN102858040A (en) | 2013-01-02 |
| CN102858040B CN102858040B (en) | 2016-01-13 |
Family
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Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210030828.2A Expired - Fee Related CN102595670B (en) | 2012-02-13 | 2012-02-13 | Electric heating pipe and manufacturing method thereof |
| CN201210339560.0A Expired - Fee Related CN102869135B (en) | 2012-02-13 | 2012-02-13 | The manufacture method of electric heating tube |
| CN201210338441.3A Expired - Fee Related CN102858039B (en) | 2012-02-13 | 2012-02-13 | A kind of electric heating tube |
| CN201210339055.6A Expired - Fee Related CN102858040B (en) | 2012-02-13 | 2012-02-13 | A kind of manufacture method of electric heating tube |
Family Applications Before (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210030828.2A Expired - Fee Related CN102595670B (en) | 2012-02-13 | 2012-02-13 | Electric heating pipe and manufacturing method thereof |
| CN201210339560.0A Expired - Fee Related CN102869135B (en) | 2012-02-13 | 2012-02-13 | The manufacture method of electric heating tube |
| CN201210338441.3A Expired - Fee Related CN102858039B (en) | 2012-02-13 | 2012-02-13 | A kind of electric heating tube |
Country Status (1)
| Country | Link |
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| CN (4) | CN102595670B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102858039A (en) * | 2012-02-13 | 2013-01-02 | 江苏顺发电热材料有限公司 | Electric heating tube |
| CN106658790A (en) * | 2016-09-14 | 2017-05-10 | 扬中市华荣电器设备有限公司 | Method for manufacturing vacuum moisture-removing electric heating pipe assembly |
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| EP3069620B2 (en) * | 2015-03-19 | 2021-02-24 | Fontem Holdings 1 B.V. | Electronic smoking device |
| CN106376114A (en) * | 2016-09-14 | 2017-02-01 | 扬中市华荣电器设备有限公司 | Manufacturing method for pre-heated electric heating pipe assembly |
| CN106413151A (en) * | 2016-09-14 | 2017-02-15 | 扬中市华荣电器设备有限公司 | Method for manufacturing pre-heating fin electric heating tube assembly |
| CN106376113A (en) * | 2016-09-14 | 2017-02-01 | 扬中市华荣电器设备有限公司 | Manufacturing method for sand-blasted fin electric heating pipe assembly |
| CN106413153A (en) * | 2016-09-14 | 2017-02-15 | 扬中市华荣电器设备有限公司 | Preparation method for surface enameled preheating electric heating tube assembly |
| CN106332331A (en) * | 2016-09-14 | 2017-01-11 | 扬中市华荣电器设备有限公司 | Electric heating pipe assembly production method |
| CN106335005A (en) * | 2016-09-14 | 2017-01-18 | 扬中市华荣电器设备有限公司 | Manufacturing method of sand blasting fin electric heating pipe assembly |
| CN106385719A (en) * | 2016-09-14 | 2017-02-08 | 扬中市华荣电器设备有限公司 | Method for manufacturing vacuum moisture-removing fin electric heating pipe component |
| CN106376112A (en) * | 2016-09-14 | 2017-02-01 | 扬中市华荣电器设备有限公司 | Manufacturing method for sand-blasted electric heating pipe assembly |
| CN106385720A (en) * | 2016-09-14 | 2017-02-08 | 扬中市华荣电器设备有限公司 | Method for manufacturing fin electric heating pipe assembly |
| CN107367225B (en) * | 2017-07-17 | 2024-07-02 | 深圳市昌龙盛机电技术有限公司 | Displacement sensor and manufacturing process thereof |
| CN108453331A (en) * | 2018-03-15 | 2018-08-28 | 江苏顺发电热材料有限公司 | Heating element intelligent laser production system |
| CN109379791B (en) * | 2018-10-29 | 2022-06-17 | 安徽苏立科技股份有限公司 | Electric heating tube machining process |
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| CN1146936A (en) * | 1996-07-17 | 1997-04-09 | 杨吉 | Hot wire drawing technique |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN201248151Y (en) * | 2008-08-22 | 2009-05-27 | 九阳股份有限公司 | Composite electric heating tube |
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2012
- 2012-02-13 CN CN201210030828.2A patent/CN102595670B/en not_active Expired - Fee Related
- 2012-02-13 CN CN201210339560.0A patent/CN102869135B/en not_active Expired - Fee Related
- 2012-02-13 CN CN201210338441.3A patent/CN102858039B/en not_active Expired - Fee Related
- 2012-02-13 CN CN201210339055.6A patent/CN102858040B/en not_active Expired - Fee Related
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102858039A (en) * | 2012-02-13 | 2013-01-02 | 江苏顺发电热材料有限公司 | Electric heating tube |
| CN102858039B (en) * | 2012-02-13 | 2016-01-13 | 江苏顺发电热材料有限公司 | A kind of electric heating tube |
| CN106658790A (en) * | 2016-09-14 | 2017-05-10 | 扬中市华荣电器设备有限公司 | Method for manufacturing vacuum moisture-removing electric heating pipe assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102869135B (en) | 2016-01-06 |
| CN102869135A (en) | 2013-01-09 |
| CN102595670A (en) | 2012-07-18 |
| CN102858040B (en) | 2016-01-13 |
| CN102858039A (en) | 2013-01-02 |
| CN102858039B (en) | 2016-01-13 |
| CN102595670B (en) | 2015-06-17 |
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