CN102595670A - Electric heating pipe and manufacturing method thereof - Google Patents
Electric heating pipe and manufacturing method thereof Download PDFInfo
- Publication number
- CN102595670A CN102595670A CN2012100308282A CN201210030828A CN102595670A CN 102595670 A CN102595670 A CN 102595670A CN 2012100308282 A CN2012100308282 A CN 2012100308282A CN 201210030828 A CN201210030828 A CN 201210030828A CN 102595670 A CN102595670 A CN 102595670A
- Authority
- CN
- China
- Prior art keywords
- resistance wire
- electric heating
- wire
- resistance
- heating 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.)
- Granted
Links
Images
Landscapes
- Resistance Heating (AREA)
Abstract
The invention relates to an electric heating pipe and a manufacturing method thereof. The manufacturing method comprises winding a double-coil resistance wire with preset length, and fixedly and respectively sleeving two ends of the resistance wire onto wire connecting positions of two wire leading posts to obtain a double-resistance-wire component; arranging the double-resistance-wire component into a metal pipe, filling insulating powder into the metal pipe through a powder adding machine, and vibrating the powder through a powder vibrating machine to obtain an electric heating pipe component; utilizing a contracting pipe machine to contract the electric heating pipe component according to a preset size so as to obtain a finished electric heating pipe with corresponding size. According to the electric heating pipe which is different from that having low rated voltage, high rated power and high length, a parallel double-resistance-wire structure is adopted, the diameter of the resistance wire is reduced, and resistance wire winding is achieved, further load of the resistance wire is decreased, and the service life of the electric heating pipe is prolonged. Procedures of pretensioning and powered heating pretensioning before powder filling of the resistance coil are added, and the problem that the welding position of the wire connecting positions of the wire leading posts and the resistance wire is prone to tensile fracture is solved.
Description
Technical field
The present invention relates to a kind of electric heating tube and manufacturing approach thereof.
Background technology
Each national voltage range 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 the resistance wire designing requirement and the manufacturing process of product increasingly high.At home; Though electric heating tube is produced the time in 20 years, the electric heating tube manufacturing technology is also very backward, a lot of rated voltages are little but product that rated power is big 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 weld that resistance wire ring and lead-in wire rod are reached the standard grade in dress powder process and the draw process be broken easily, causes the problem that can't make more than the electrothermal tube pipe range 1500mm; For the tubing (Φ 6.2mm, 6.5mm, 8.0mm, 8.5mm) that the household electrical heating tube is selected for use, little for rated voltage, and the big 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 that the present invention will solve provides electric heating tube and the manufacturing approach thereof that a kind of rated voltage is little and rated power is big.
For solving the problems of the technologies described above; The present invention is through a kind of manufacturing approach of electric heating tube; It comprises: the 1. mariages circle formula resistance wire of coiling one preset length, then with the two ends of this mariages circle formula 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. be located at said pair of resistance wire assembly in one metal tube, and use powder feeding machine in said metal tube, to add insulating powder (being generally insulating oxide magnesium powder), adopt the powder machine that the shakes powder that shakes then, obtain electric heating tube component; 3. use machine for shrinking that said 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 said metal tube pipe range is more than 1000mm; And this pipe range is 2.5～4.0 times of mariages circle formula resistance wire length; Then said pair of resistance wire assembly elongated 1.6～3.5 times,, prevent that the mariages circle formula 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 in the follow-up powder process of shaking to serve as that two being elongated once more of resistance wire assembly are left surplus with pretension fixing device.
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 said lead-in wire rod is the taper thread structure.
Further; Be the convenient prestretching of implementing; Avoid the mariages circle formula 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 said pair of resistance wire assembly,, then adopt pretension fixing device directly to elongate said pair of resistance wire assembly if the diameter of resistance wire is 0.30-0.42mm; If the diameter of resistance wire is 0.45～0.65mm, then add power supply at said two lead-in wire rods earlier, said mariages circle is heated and controls its temperature in 500～750 ℃ of scopes, with pretension fixing device it is elongated then.
For solving the technical problem that rated voltage is little and rated power is big; The present invention provides a kind of electric heating tube; Its resistance wire assembly; Comprise: pair of lead wires rod, by the mariages circle formula resistance wire that two resistance wires turn to, the two ends of said mariages circle formula resistance wire fixed cover respectively 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 said 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 said 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 big and pipe range is long, the structure of the two resistance wires of employing parallel connection reduces the resistance wire diameter, realizes the resistance wire wrapping wire; Reduce the resistance wire load simultaneously, increased electrothermal tube useful life; (2) increase the operation that the resistance wire ring is adorned preceding prestretching of powder and energising heating prestretching; Solution is shaken a weld of reaching the standard grade of mariages circle formula resistance wire and lead-in wire rod is broken easily in powder and the draw process problem (because before the powder that shakes, be close together between the resistance wire ring silk; Shake and drawn back between the circle silk behind the powder; In draw process, drawn back once more), 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 clearly understood, below basis specific embodiment and combine accompanying drawing, the present invention is done 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
Below in conjunction with accompanying drawing and embodiment the present invention is elaborated:
Because the tubing that the household electrical heating tube is selected for use restriction (Φ 6.2mm, 6.5mm, 8.0mm, 8.5mm); The resistance wire of electric heating tube is if adopt the structure of the two resistance wire circuit of parallel connection; Then rated voltage is little; The electric heating tube that rated power is big can adopt more little resistance wire diameter processing, and the electric heating tube caliber is that Φ 6.2mm, wall thickness are 0.5mm, and resistance wire ring D outer diameter is controlled at Φ 1.8～2.6mm; Caliber is that Φ 6.5mm, wall thickness are 0.5mm, and resistance wire ring D outer diameter is controlled at Φ 1.8～2.8mm; Caliber is that Φ 8.0mm, wall thickness are 0.5mm, and resistance wire ring D outer diameter is controlled at Φ 1.8～4.3mm; Caliber is that Φ 8.5mm, wall thickness are 0.5mm, and resistance wire ring D outer diameter is controlled at Φ 1.8～4.8mm; Reduce the resistance wire diameter, increase the creepage distance of resistance wire ring D outer diameter 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 circle formula resistance wire 2 that is turned to by two resistance wires; The two ends of said mariages circle formula 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 said position 4 of reaching the standard grade through welding.
The resistance wire diameter d 1 of said 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 said lead-in wire rod 1.
The manufacturing approach 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 get into described monofilament spiral filament forming machine simultaneously and turn to mariages circle formula resistance wire 2; The two ends of said then mariages circle formula resistance wire 2 are set in respectively on the position 4 of reaching the standard grade of two lead-in wire rods, 1 (being also referred to as cold pin); Fix the position 4 of reaching the standard grade of said lead-in wire rod 1 with the end of mariages circle 2 through welding, constitute two resistance wire assemblies;
2. if the pipe range of the metal tube 3 of formation electric heating tube 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 circle formula resistance wire 2 length; Then said pair of resistance wire assembly elongated 1.6～3.5 times, thereby be that the elongation once more of two resistance wire assemblies left surplus during the follow-up powder that shakes was processed with pretension fixing device; 3. be set in the two resistance wire assemblies after the said elongation in the said metal pipe material and use powder feeding machine in said metal tube, to add insulating powder 5 (being magnesia powder); The powder that shakes then processing (work of powder feeding machine comprises: pair resistance wire assemblies be located in the said metal pipe material and elongate once more, 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, roll the 6.5mm to Φ to the tubing of Φ 8.0mm 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 add power supply at said two lead-in wire rods earlier, said mariages circle is heated and controls its temperature in 500～750 ℃ of scopes, with pretension fixing device it is elongated then.Resistance wire in the standard specification resistance wire between the no diameter 0.42-0.45mm.
The electric heating tube of making if desired, 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 for use, 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 for use if adopt the two resistance wires of parallel connection; The wrapping wire function is processed into mariages circle formula resistance wire; Resistance wire ring outside diameter control can guarantee the electric property of electrothermal tube at Φ 2.8mm like this, and the resistance wire ring shakes, and energising is heated to 700 ℃ before the powder; Hot prestretching avoids the mariages circle formula resistance wire and a weld of reaching the standard grade of lead-in wire rod in shake powder and draw manufacturing, to break to 1600mm.
Obviously, the foregoing description only be for clearly the present invention is described and is done for example, and be not to be qualification to execution mode of the present invention.For the those of ordinary skill in affiliated field, on the basis of above-mentioned explanation, can also make other multi-form variation or change.Here need not also can't give exhaustive to all execution modes.And these belong to conspicuous variation or the change that spirit of the present invention extended out and still are among protection scope of the present invention.
Claims (7)
1. the manufacturing approach of an electric heating tube comprises:
1. the mariages circle formula resistance wire (2) of coiling one preset length, then with the two ends of this mariages circle formula 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. be located at said pair of resistance wire assembly in one metal tube (3), and use powder feeding machine in said metal tube, to add insulating powder (5), adopt the powder machine that the shakes powder that shakes then, obtain electric heating tube component;
3. use machine for shrinking that said electric heating tube component is carried out the draw by pre-set dimension, obtain the electric heating tube of corresponding size.
2. the manufacturing approach of the electric heating tube of the two resistance wires of parallel connection according to claim 1; It is characterized in that: execution in step 2. before; If said metal tube pipe range is more than 1000mm; And this pipe range is 2.5～4.0 times of mariages circle formula resistance wire (2) length, then with pretension fixing device said pair of resistance wire assembly is elongated 1.6～3.5 times.
3. the manufacturing approach of the electric heating tube of the two resistance wires of parallel connection according to claim 1 is characterized in that: the position (4) of reaching the standard grade of said lead-in wire rod (1) is the taper thread structure.
4. the manufacturing approach of the electric heating tube of the two resistance wires of parallel connection according to claim 2; It is characterized in that: when elongating said pair of resistance wire assembly; If the diameter of resistance wire (2) is 0.30-0.42mm, then directly elongate said pair of resistance wire assembly with pretension fixing device; If the diameter of resistance wire (2) is 0.45～0.65mm, then add power supply at said two lead-in wire rods (1) earlier, said mariages circle (2) is heated and controls its temperature in 500～750 ℃ of scopes, with pretension fixing device it is elongated then.
5. electric heating tube; It is characterized in that; Its resistance wire assembly comprises: pair of lead wires rod (1), by the mariages circle formula resistance wire (2) that two resistance wires turn to, the two ends of said mariages circle formula resistance wire (2) fixed cover respectively are located on the position (4) of reaching the standard grade of described pair of lead wires rod (1).
6. electric heating tube according to claim 5 is characterized in that: the resistance wire diameter of said formation mariages circle (2) is 0.30-0.65mm.
7. electric heating tube according to claim 5 is characterized in that: the position (4) of reaching the standard grade of said lead-in wire rod (1) is the taper thread structure.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210338441.3A CN102858039B (en) | 2012-02-13 | 2012-02-13 | A kind of electric heating tube |
| CN201210339560.0A CN102869135B (en) | 2012-02-13 | 2012-02-13 | The manufacture method of electric heating tube |
| 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 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210030828.2A CN102595670B (en) | 2012-02-13 | 2012-02-13 | Electric heating pipe and manufacturing method thereof |
Related Child Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210339560.0A Division CN102869135B (en) | 2012-02-13 | 2012-02-13 | The manufacture method of electric heating tube |
| CN201210338441.3A Division CN102858039B (en) | 2012-02-13 | 2012-02-13 | A kind of electric heating tube |
| CN201210339055.6A Division CN102858040B (en) | 2012-02-13 | 2012-02-13 | A kind of manufacture method of electric heating tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102595670A true CN102595670A (en) | 2012-07-18 |
| CN102595670B CN102595670B (en) | 2015-06-17 |
Family
ID=46483736
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 |
| CN201210338441.3A Expired - Fee Related CN102858039B (en) | 2012-02-13 | 2012-02-13 | A kind of electric heating tube |
| CN201210339560.0A Expired - Fee Related CN102869135B (en) | 2012-02-13 | 2012-02-13 | The manufacture method 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 After (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210338441.3A Expired - Fee Related CN102858039B (en) | 2012-02-13 | 2012-02-13 | A kind of electric heating tube |
| CN201210339560.0A Expired - Fee Related CN102869135B (en) | 2012-02-13 | 2012-02-13 | The manufacture method 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 |
Country Status (1)
| Country | Link |
|---|---|
| CN (4) | CN102595670B (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105982362A (en) * | 2015-03-19 | 2016-10-05 | 方特慕控股第私人有限公司 | Electronic smoking device |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| CN109379791A (en) * | 2018-10-29 | 2019-02-22 | 安徽苏立科技股份有限公司 | A kind of electric heating pipe processing technique |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102595670B (en) * | 2012-02-13 | 2015-06-17 | 江苏顺发电热材料有限公司 | Electric heating pipe and manufacturing method thereof |
| 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 |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1146936A (en) * | 1996-07-17 | 1997-04-09 | 杨吉 | Hot wire drawing technique |
| CN2419781Y (en) * | 2000-04-06 | 2001-02-14 | 河合电器(杭州)有限公司 | Electric water heating pipe |
| CN2529483Y (en) * | 2002-01-16 | 2003-01-01 | 宁波市塞纳电热电器有限公司 | Two-wire heating wire for electric tube |
| CN2640184Y (en) * | 2003-08-04 | 2004-09-08 | 杭州河合电器股份有限公司 | Concentric double-spiral multi-power electric heating pipe |
| DE69731042T2 (en) * | 1996-08-20 | 2005-02-17 | Mold-Masters Ltd., Georgetown | Method for producing an elongated heating element |
| CN1787699A (en) * | 2005-12-02 | 2006-06-14 | 萧鲲 | Vacuum high temp. electric heating pipe and product tech. thereof |
| CN101150895A (en) * | 2006-09-19 | 2008-03-26 | 陈国忠 | Making method for uniform electric heating tube |
| CN201248151Y (en) * | 2008-08-22 | 2009-05-27 | 九阳股份有限公司 | Composite electric heating tube |
| CN101577990A (en) * | 2009-06-16 | 2009-11-11 | 镇江东方电热有限公司(中外合资) | Non-inductance electric heating resistance device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102595670B (en) * | 2012-02-13 | 2015-06-17 | 江苏顺发电热材料有限公司 | Electric heating pipe and manufacturing method thereof |
-
2012
- 2012-02-13 CN CN201210030828.2A patent/CN102595670B/en not_active Expired - Fee Related
- 2012-02-13 CN CN201210338441.3A patent/CN102858039B/en not_active Expired - Fee Related
- 2012-02-13 CN CN201210339560.0A patent/CN102869135B/en not_active Expired - Fee Related
- 2012-02-13 CN CN201210339055.6A patent/CN102858040B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1146936A (en) * | 1996-07-17 | 1997-04-09 | 杨吉 | Hot wire drawing technique |
| DE69731042T2 (en) * | 1996-08-20 | 2005-02-17 | Mold-Masters Ltd., Georgetown | Method for producing an elongated heating element |
| CN2419781Y (en) * | 2000-04-06 | 2001-02-14 | 河合电器(杭州)有限公司 | Electric water heating pipe |
| CN2529483Y (en) * | 2002-01-16 | 2003-01-01 | 宁波市塞纳电热电器有限公司 | Two-wire heating wire for electric tube |
| CN2640184Y (en) * | 2003-08-04 | 2004-09-08 | 杭州河合电器股份有限公司 | Concentric double-spiral multi-power electric heating pipe |
| CN1787699A (en) * | 2005-12-02 | 2006-06-14 | 萧鲲 | Vacuum high temp. electric heating pipe and product tech. thereof |
| CN101150895A (en) * | 2006-09-19 | 2008-03-26 | 陈国忠 | Making method for uniform electric heating tube |
| CN201248151Y (en) * | 2008-08-22 | 2009-05-27 | 九阳股份有限公司 | Composite electric heating tube |
| CN101577990A (en) * | 2009-06-16 | 2009-11-11 | 镇江东方电热有限公司(中外合资) | Non-inductance electric heating resistance device |
Non-Patent Citations (1)
| Title |
|---|
| 张希先: "快速丝材加热炉的研制", 《工业加热》, no. 5, 31 October 1991 (1991-10-31), pages 11 - 13 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105982362A (en) * | 2015-03-19 | 2016-10-05 | 方特慕控股第私人有限公司 | Electronic smoking device |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| 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 |
| CN109379791A (en) * | 2018-10-29 | 2019-02-22 | 安徽苏立科技股份有限公司 | A kind of electric heating pipe processing technique |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102858039A (en) | 2013-01-02 |
| CN102858040B (en) | 2016-01-13 |
| CN102858039B (en) | 2016-01-13 |
| CN102595670B (en) | 2015-06-17 |
| CN102869135B (en) | 2016-01-06 |
| CN102869135A (en) | 2013-01-09 |
| CN102858040A (en) | 2013-01-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102595670A (en) | Electric heating pipe and manufacturing method thereof | |
| CN102962361B (en) | Detachable electromagnetic induction heater for diameter-expanded bend-pushed large-diameter elbow | |
| US20200000572A1 (en) | Manufacturing of artificial muscle actuators | |
| CN107768210B (en) | Large power long service life cathode heater sub-assembly preparation method | |
| CN202773103U (en) | Electrical heating tube with lower rated voltage and higher rated power | |
| CN202773104U (en) | Electrical heating tube | |
| JP5576342B2 (en) | Glass rod manufacturing apparatus and manufacturing method | |
| CN105321598A (en) | Assembled conductor and manufacturing method for assembled conductor | |
| CN201052651Y (en) | Material cylinder device for plastics extrusion machine | |
| CN203843767U (en) | PPR pipe fitting thread retreating device | |
| CN201358281Y (en) | Wire drawing and annealing integrative machine | |
| CN101870064A (en) | Stainless steel wire drawing and annealing integration machine | |
| CN104853463A (en) | Automatic high-speed continuous production method for metal electrothermal tubes | |
| CN104916426A (en) | Heating system and heating method for dual-head hollow coil winding device | |
| CN202759611U (en) | Heating rod structure of atmosphere protective mesh-belt furnace | |
| CN204539499U (en) | The tubular heater of built-in thermel protection device | |
| JP2015080281A (en) | Assembled conductor and motor | |
| CN205487575U (en) | Heating device suitable for aluminium core crosslinked power cable shell extruder | |
| RU107439U1 (en) | INDUCTOR FOR PERIODIC HEATING OF CYLINDRICAL TITANIUM PREPARATIONS OF DIFFERENT LENGTH | |
| CN206564701U (en) | A kind of electric heating tube provided with combined wire lead rod | |
| CN105592583B (en) | Bolt electrically heated rod | |
| CN101252066B (en) | Left, right, left three-section type spiral winding method and structure of energy-saving filament | |
| CN101252067B (en) | Right, right, left three-section type spiral winding method and structure of energy-saving filament | |
| CN209910387U (en) | Sintering furnace body | |
| CN104831045A (en) | Steel pipe heating device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20190213 |