CN105657873A - Double-winding resistance wire and manufacture process for making same into heating tube - Google Patents
Double-winding resistance wire and manufacture process for making same into heating tube Download PDFInfo
- Publication number
- CN105657873A CN105657873A CN201410445920.4A CN201410445920A CN105657873A CN 105657873 A CN105657873 A CN 105657873A CN 201410445920 A CN201410445920 A CN 201410445920A CN 105657873 A CN105657873 A CN 105657873A
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- resistance wire
- seamless steel
- steel pipe
- plug
- welding
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 238000004804 winding Methods 0.000 title claims abstract description 5
- 238000010438 heat treatment Methods 0.000 title abstract description 17
- 238000004519 manufacturing process Methods 0.000 title abstract description 4
- 238000005452 bending Methods 0.000 claims abstract description 26
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 56
- 229910000831 Steel Inorganic materials 0.000 claims description 46
- 239000010959 steel Substances 0.000 claims description 46
- 238000003466 welding Methods 0.000 claims description 31
- 239000000395 magnesium oxide Substances 0.000 claims description 28
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 19
- 229910052742 iron Inorganic materials 0.000 claims description 19
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 18
- 238000005516 engineering process Methods 0.000 claims description 17
- 239000000843 powder Substances 0.000 claims description 14
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 12
- 229910052749 magnesium Inorganic materials 0.000 claims description 12
- 239000011777 magnesium Substances 0.000 claims description 12
- 230000003647 oxidation Effects 0.000 claims description 12
- 238000007254 oxidation reaction Methods 0.000 claims description 12
- 229910052786 argon Inorganic materials 0.000 claims description 9
- 229910001220 stainless steel Inorganic materials 0.000 claims description 9
- 239000010935 stainless steel Substances 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 7
- 238000000227 grinding Methods 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 238000002955 isolation Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims description 3
- 238000007599 discharging Methods 0.000 claims description 3
- 238000003801 milling Methods 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 claims description 3
- 229910052683 pyrite Inorganic materials 0.000 claims description 3
- 239000011028 pyrite Substances 0.000 claims description 3
- 239000007787 solid Substances 0.000 abstract 1
- 230000007812 deficiency Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000002459 sustained effect Effects 0.000 description 1
Landscapes
- Resistance Heating (AREA)
Abstract
The invention discloses a double-winding resistance wire and a manufacture process for making the same into a heating tube. The resistance wire comprises a resistance wire body, the middle of the resistance wire body is bent to form a middle bending part, the resistance wire parts at the two ends of the middle bending part are spirally bent to form two spiral parts, and the two spiral parts cross each other to form a hollow cylinder. The spiral parts are each composed of multiple continuous coiled rings formed by spirally bending the resistance wire, and each coiled ring part of one spiral part is inserted into two corresponding coiled ring parts of the other spiral part. By adopting a double-winding structure, a manufactured heating tube is uniform in internal heating. Meanwhile, a binding post is disposed at the topmost end of a heating wire and is not affected by temperature. By using the heating tube manufacture process, the product has a more solid structure, is safer, and has a longer service life.
Description
Technical field:
The invention belongs to resistance wire equipment technical field, more specifically to a kind of double wrap silk structural resistance silk and make the processing technology adding heat pipe.
Background technology:
Existing single head adds the resistance wire adopted in heat pipe and is generally adopted two kinds of structures, a kind of is carried out bending and be coiled into spire in the two ends of the middle part connecting portion of a resistance wire, between two spires completely separable, then one steel pipe of surface cover outside, central filler insulant, in its heating process, the phenomenon that steel duct heat radiation is uneven can be caused, produce hot-spot and cause that heater strip damages.
The second is, resistance wire coiling is formed cylindrical helical portion, then, binding post below carries out transverse fold and upwardly extends the binding post of top of binding post and spire so that lower section in sustained height, the problem so brought is, add in heat pipe what it was made, it is in heating process, temperature is significantly high, the binding post of the lower section of spire is longer due to length, it is adding the middle of heat pipe, and temperature can be the highest, it is easy to fuses or produces significantly high resistance value thus causing that heating power is substantially reduced.
Simultaneously, existing heating pipe processing technology is very simple, resistance wire is simply placed in stainless steel tube by it, and in stainless steel tube, add insulation dust, adding in heat pipe of so making, it easily made resistance wire contact with stainless steel tube so that stainless steel tube heating is uneven so that resistance wire and stainless steel tube damage.
Summary of the invention:
It is an object of the invention to overcome the deficiencies in the prior art, a kind of double wrap silk structural resistance silk is provided and makes the processing technology adding heat pipe, it adopts the structure of double wrap silk, making what it made to add inside heat pipe homogeneous heating, meanwhile, binding post is positioned at the top of heater strip and is not influenced by temperature, and adopt its manufactured goods structure of this heating pipe processing technology more firm, safer, meanwhile, long service life.
This invention address that the scheme of described technical problem is:
A kind of double wrap silk structural resistance silk, it includes resistance wire body, and the middle part bending of resistance wire body forms middle bending part, and the resistance wire at the two ends of middle bending part carries out helical form bending and forms two spires, and two spires intersect formation hollow cylinder.
Described spire is carried out helical form bending by resistance wire and forms multiple continuous print coiling circle and form, and each coiling circle portion sleeve of one of them spire coils between circle portion corresponding two of another spire.
A kind of processing technology adopting the making of this resistance wire to add heat pipe, it comprises the following steps:
(1), in magnesia tube, this resistance wire it is wound around;
(2), the afterbody of two solid-iron poles is carried out flattening process and forms flattening portion;
(3), the two ends of resistance wire are welded on two solid-iron poles afterbody flattening portion on form center calandria;
(4), by the calandria sleeve magnesia tube outside of center, wherein in the central through hole of the multiple baffle plate in inside of the sleeve of the magnesia tube of center calandria holding magnesia tube outside, the middle bending part of resistance wire stretches out the central through hole of the baffle plate of the bottom of external oxidation magnesium pipe;
(5), by external oxidation magnesium pipe sleeve in seamless steel pipe, by fixing for rubber stopper joint pin sleeve the top being fixed on seamless steel pipe, the fixing joint pin of rubber stopper is stretched out on the top of two solid-iron poles;
(6), seamless steel pipe is inverted, isolation material powder is added in seamless steel pipe;
(7), by the tail end sleeve of seamless steel pipe welding plug (8);
(8), plug being carried out grinding, the diameter making plug is identical with the external diameter of seamless steel pipe, then carries out draw high temperature humidity discharging, installs securing member finally according to needs, and carries out detection packaging.
When seamless steel pipe is inverted by described 6th step, dropper is adopted to be hung by the middle bending part of resistance wire.
In described 6th step, it is undertaken adding powder by powder feeding machine.
Described seamless steel pipe is 321 stainless-steel seamless pipes.
Flattening portion in described 3rd step first carries out groove milling and forms elongated slot, and the end of resistance wire is welded on the sidewall of elongated slot by the end sleeve of resistance wire in elongated slot and by argon arc welding.
Described elongated slot adopts pyrite sealing weld again.
In described 7th step when the tail end welding plug of seamless steel pipe, first adopt argon arc welding melting welding one to enclose, adopt lathe process that the outer wall of plug carries out grinding after having welded and make the outer diameter of plug identical with the external diameter of seamless steel pipe.
Argon arc welding melting welding one circle adopted during the tail end welding plug of described seamless steel pipe is divided into two steps, first will weld more than half between plug with seamless steel pipe, then waits after basic cooling the remaining part of welding again, and built-up welding one is enclosed again.
The prominent effect of the present invention is:
Compared with prior art, it adopts the structure of double wrap silk, make what it made to add inside heat pipe homogeneous heating, simultaneously, binding post is positioned at the top of heater strip and is not influenced by temperature, and adopts its manufactured goods structure of this heating pipe processing technology more firm, safer, meanwhile, long service life.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the course of processing figure of the solid-iron pole of the present invention;
Fig. 3 is the procedure chart of the processing technique of the present invention.
Detailed description of the invention:
As shown in Figure 1, a kind of double wrap silk structural resistance silk, it includes resistance wire body 10, and the middle part bending of resistance wire body 10 forms middle bending part 1, the resistance wire at the two ends of middle bending part 1 carries out helical form bending and forms two spires 2, and two spires 2 intersect formation hollow cylinder.
Described spire 2 is carried out helical form bending by resistance wire and forms multiple continuous print coiling circle and form, and each coiling circle portion sleeve of one of them spire 2 coils between circle portion corresponding two of another spire 2.
Adopting the resistance wire of this structure, it is by the effect of middle part bending part 1 so that can never contact between two spires 2, and both intersect to form hollow cylinder mutually so that be uniformly heated.
In People's Republic of China's machinery industry standard tubular metal electric heating element (JB/T2379-1993), in 3rd product classification, 3.1.1 single ended leads only has c, d way, i.e. existing production method, the present invention supplements the deficiency of standard, adds heat pipe liquid heating surface loading at 4.1.1.2 the highest less than 11w/cm2, and this resistance wire changes the mode that tradition single-end leading-out wire electrical heating elements makes, so the present invention is by it have been experienced that 18.5w/cm can be brought up to by surface loading2, in same surface loading situation, substantially increase the service life adding heat pipe. Under same life situations, our volume can be accomplished less, more saves the cost of raw material. Or it is higher to go for pressure, in the liquid environment that temperature is higher.
What the resistance wire adopting this pair of winding structure was made adds heat pipe, it is by magnesia tube 3, external oxidation magnesium pipe 5, solid-iron pole 4, seamless steel pipe 6, the fixing joint pin 7 of rubber stopper and plug 8 form, resistance wire body 10 is wrapped in magnesia tube 3, the two ends of resistance wire body 10 are welded with solid-iron pole 4, solid-iron pole 4 sleeve is in the main magnesia tube 20 that the top of magnesia tube 3 is fixed with, solid-iron pole 4 stretches out the top of main magnesia tube 20, in baffle plate 51 in magnesia tube 3 sleeve magnesia tube 5 outside, the outer wall holding of magnesia tube 3 is fixed on the sidewall of the central through hole of baffle plate 51, the top of seamless steel pipe 6 is fixed with the fixing joint pin 7 of rubber stopper, the fixing joint pin 7 of rubber stopper is stretched out on the top of two solid-iron poles 4, the tail end of seamless steel pipe 6 is welded with plug 8, seamless steel pipe 6 is filled with isolation material powder, this isolation material powder is routine techniques in the industry, no longer describe in detail.
Magnesia tube 3, external oxidation magnesium pipe 5 is adopted to carry out duplicate protection, it is ensured that resistance wire body 10 will not contact with the inwall of seamless steel pipe 6, simultaneously, it is ensured that it is heated heat radiation uniformly, improves the service life adding heat pipe.
And, baffle plate 51 therein improves the intensity of external oxidation magnesium pipe 5, and make between magnesia tube 3 and external oxidation magnesium pipe 5 fixing more firm.
Seeing that Fig. 2 is to shown in 3, a kind of adopt this double wrap silk structural resistance silk to make the processing technology adding heat pipe, it comprises the following steps:
(1), in magnesia tube 3, it is wound around this resistance wire;
(2), the afterbody of two solid-iron poles 4 is carried out flattening process and forms flattening portion 41; Adopt flattening portion 41, to facilitate fixing and welding.
(3), the two ends of resistance wire are welded on two solid-iron poles 4 afterbody flattening portion 41 on form center calandria; Meanwhile, fixing main magnesia tube 20 on the top of magnesia tube 3, solid-iron pole 4 sleeve is in main magnesia tube 20; Adopt main magnesia tube 20, it is ensured that solid-iron pole 4 is fixing more firm.
(4), by center calandria sleeve magnesia tube 5 outside, wherein in the central through hole of the multiple baffle plate 51 in inside of the sleeve of the magnesia tube 3 of center calandria holding magnesia tube 5 outside, the middle bending part 1 of resistance wire stretches out the central through hole of the baffle plate 51 of the bottom of external oxidation magnesium pipe 5; Adopt baffle plate 51 structure to be possible not only to improve magnesia tube 3 and be fixed on the firmness in external oxidation magnesium pipe 5, simultaneously, can ensure that the spacing between magnesia tube 3 and external oxidation magnesium pipe 5 is certain, make between after fill insulant powder, its heat is more uniform, improves its service life further.
(5), by external oxidation magnesium pipe 5 sleeve in seamless steel pipe 6, by fixing for rubber stopper joint pin 7 sleeve the top being fixed on seamless steel pipe 6, the fixing joint pin 7 of rubber stopper is stretched out on the top of two solid-iron poles 4; Wherein in order to ensure the sealing of the fixing joint pin 7 of solid-iron pole 4 and rubber stopper, it is possible to fixed seal ring in solid-iron pole 4, sealing ring is fixed on the fixing joint pin 7 of rubber stopper so that its sealing effectiveness is better.
(6), seamless steel pipe 6 is inverted, isolation material powder is added in seamless steel pipe 6;
(7), by the tail end sleeve of seamless steel pipe 6 welding plug 8;
(8), plug 8 being carried out grinding, the diameter making plug 8 is identical with the external diameter of seamless steel pipe 6, then carries out draw high temperature humidity discharging, installs securing member finally according to needs, and carries out detection packaging. Wherein, installing securing member is install additional as required, as being fixed on the outer wall of stainless-steel seamless pipe 6 by clip.
Time in described 6th step by seamless steel pipe 6 inversion, dropper 9 is adopted to be hung by the middle bending part 1 of resistance wire. Adopt dropper 9, it is ensured that seamless steel pipe 6 is vertical and ground so that adds powder and uniformly and is not easy from seamless steel pipe 6 and flows out.
In described 6th step, it is undertaken adding powder by powder feeding machine.
Described seamless steel pipe 6 is 321 stainless-steel seamless pipes.
Flattening portion 41 in described 3rd step first carries out groove milling and forms elongated slot 42, and the end of resistance wire is welded on the sidewall of elongated slot 42 by the end sleeve of resistance wire in elongated slot 42 and by argon arc welding.
Described elongated slot 42 adopts pyrite sealing weld again.
In described 7th step when the tail end welding plug 8 of seamless steel pipe 6, first adopt argon arc welding melting welding one to enclose, adopt lathe process that the outer wall of plug 8 carries out grinding after having welded and make the outer diameter of plug 8 identical with the external diameter of seamless steel pipe 6.
Argon arc welding melting welding one circle adopted during the tail end welding plug 8 of described seamless steel pipe 6 is divided into two steps, first will weld more than half (being generally 3/4) between plug 8 with seamless steel pipe 6, then after waiting basic cooling, part is left in welding again, and built-up welding one is enclosed again. Adopt this kind of mode, better improve the sealing effectiveness between its plug 8 and seamless steel pipe 6, significantly prevent the possibility of Lou powder, and also improve its service life.
Embodiment of above is merely to illustrate the present invention; and it is not limitation of the present invention; those of ordinary skill about technical field; without departing from the spirit and scope of the present invention; can also make a variety of changes and modification; therefore all equivalent technical schemes fall within scope of the invention, and the scope of patent protection of the present invention should be defined by the claims.
Claims (10)
1. a double wrap silk structural resistance silk, it is characterized in that: it includes resistance wire body (10), the middle part bending of resistance wire body (10) forms middle bending part (1), the resistance wire at the two ends of middle bending part (1) carries out helical form bending and forms two spires (2), and two spires (2) intersect formation hollow cylinder.
2. a kind of double wrap silk structural resistance silk according to claim 1, it is characterized in that: described spire (2) is carried out helical form bending by resistance wire and forms multiple continuous print coiling circle and form, and each coiling circle portion sleeve of one of them spire (2) coils between circle portion corresponding two of another spire (2).
3. the resistance wire that a kind adopts described in claim 1 to 2 makes the processing technology adding heat pipe, it is characterised in that: it comprises the following steps:
(1), at magnesia tube (3) this resistance wire of upper winding;
(2), the afterbody of two solid-iron poles (4) is carried out flattening process and forms flattening portion (41);
(3), the two ends of resistance wire are welded on upper formation center, flattening portion (41) calandria of the afterbody of two solid-iron poles (4);
(4), by center calandria sleeve magnesia tube outside (5), wherein in the central through hole of the multiple baffle plate in the inside (51) of the sleeve of the magnesia tube (3) of center calandria holding magnesia tube outside (5), the middle bending part (1) of resistance wire stretches out the central through hole of the baffle plate (51) of the bottom of external oxidation magnesium pipe (5);
(5), by external oxidation magnesium pipe (5) sleeve in seamless steel pipe (6), by fixing for rubber stopper joint pin (7) sleeve the top being fixed on seamless steel pipe (6), the fixing joint pin (7) of rubber stopper is stretched out on the top of two solid-iron poles (4);
(6), seamless steel pipe (6) is inverted, isolation material powder is added in seamless steel pipe (6);
(7), by the tail end sleeve of seamless steel pipe (6) welding plug (8);
(8), plug (8) being carried out grinding, the diameter making plug (8) is identical with the external diameter of seamless steel pipe (6), then carries out draw high temperature humidity discharging, installs securing member finally according to needs, and carries out detection packaging.
4. add the processing technology of heat pipe according to claim 3, it is characterised in that: when seamless steel pipe (6) is inverted by described 6th step, adopt dropper (9) to be hung by the middle bending part (1) of resistance wire.
5. the processing technology adding heat pipe according to claim 3, it is characterised in that: in described 6th step, it is undertaken adding powder by powder feeding machine.
6. the processing technology adding heat pipe according to claim 3, it is characterised in that: described seamless steel pipe (6) is 321 stainless-steel seamless pipes.
7. the processing technology adding heat pipe according to claim 3, it is characterized in that: the flattening portion (41) in described 3rd step first carries out groove milling and forms elongated slot (42), and the end of resistance wire is welded on the sidewall of elongated slot (42) by the end sleeve of resistance wire in elongated slot (42) and by argon arc welding.
8. the processing technology adding heat pipe according to claim 7, it is characterised in that: described elongated slot adopts pyrite sealing weld in (42) again.
9. the processing technology adding heat pipe according to claim 3, it is characterized in that: in described 7th step when tail end welding plug (8) of seamless steel pipe (6), first adopt argon arc welding melting welding one to enclose, adopt lathe process that the outer wall of plug (8) carries out grinding after having welded and make the outer diameter of plug (8) identical with the external diameter of seamless steel pipe (6).
10. the processing technology adding heat pipe according to claim 9, it is characterized in that: argon arc welding melting welding one circle adopted during tail end welding plug (8) of described seamless steel pipe (6) is divided into two steps, first will weld more than half between plug (8) with seamless steel pipe (6), then after waiting basic cooling, part is left in welding again, and built-up welding one is enclosed again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410445920.4A CN105657873B (en) | 2014-08-27 | 2014-08-27 | A kind of manufacture craft of double wrap silk structural resistance silk production heating tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410445920.4A CN105657873B (en) | 2014-08-27 | 2014-08-27 | A kind of manufacture craft of double wrap silk structural resistance silk production heating tube |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105657873A true CN105657873A (en) | 2016-06-08 |
| CN105657873B CN105657873B (en) | 2019-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410445920.4A Active CN105657873B (en) | 2014-08-27 | 2014-08-27 | A kind of manufacture craft of double wrap silk structural resistance silk production heating tube |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| 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 |
| CN106488594A (en) * | 2016-11-03 | 2017-03-08 | 江阴市国豪电热电器制造有限公司 | A kind of conducting-heat elements improvement type electric heating tube |
| CN106872515A (en) * | 2017-03-06 | 2017-06-20 | 中国工程物理研究院材料研究所 | Tritium level measurement apparatus and its control temperature unit |
| CN107517505A (en) * | 2017-09-30 | 2017-12-26 | 江苏众众热能科技有限公司 | A kind of electric heater for soil remediation |
| 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 |
| CN109640421A (en) * | 2019-01-23 | 2019-04-16 | 浙江泰索科技有限公司 | The single-ended electric heating tube of high temperature |
| CN110582131A (en) * | 2019-09-20 | 2019-12-17 | 江苏欧展科技有限公司 | Electric heating element for preparing solar thin-film battery |
| CN114749873A (en) * | 2022-05-17 | 2022-07-15 | 温州海得利电气有限公司 | Method for manufacturing semiconductor chip electrothermal test core rod |
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| CN200947679Y (en) * | 2006-09-05 | 2007-09-12 | 中国核动力研究设计院 | Explosion-proof electric heater with double-spiral structure |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| 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 |
| 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 |
| CN106488594A (en) * | 2016-11-03 | 2017-03-08 | 江阴市国豪电热电器制造有限公司 | A kind of conducting-heat elements improvement type electric heating tube |
| CN106872515A (en) * | 2017-03-06 | 2017-06-20 | 中国工程物理研究院材料研究所 | Tritium level measurement apparatus and its control temperature unit |
| CN107517505A (en) * | 2017-09-30 | 2017-12-26 | 江苏众众热能科技有限公司 | A kind of electric heater for soil remediation |
| 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 |
| CN109640421A (en) * | 2019-01-23 | 2019-04-16 | 浙江泰索科技有限公司 | The single-ended electric heating tube of high temperature |
| CN110582131A (en) * | 2019-09-20 | 2019-12-17 | 江苏欧展科技有限公司 | Electric heating element for preparing solar thin-film battery |
| CN114749873A (en) * | 2022-05-17 | 2022-07-15 | 温州海得利电气有限公司 | Method for manufacturing semiconductor chip electrothermal test core rod |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105657873B (en) | 2019-04-23 |
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Effective date of registration: 20190416 Address after: 212211 Group 1, Xiangyang Village, Xinba Town, Yangzhong City, Zhenjiang City, Jiangsu Province Patentee after: Yangzhong Xianglong Electrical Appliance Co., Ltd. Address before: 212200 Xiangyang Village 65, Xinba Town, Yangzhong City, Jiangsu Province Patentee before: Chen Liang |