CN105170743B - A kind of forming method of thin wall tantalum material matter spiral coil - Google Patents
A kind of forming method of thin wall tantalum material matter spiral coil Download PDFInfo
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- CN105170743B CN105170743B CN201510603324.9A CN201510603324A CN105170743B CN 105170743 B CN105170743 B CN 105170743B CN 201510603324 A CN201510603324 A CN 201510603324A CN 105170743 B CN105170743 B CN 105170743B
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Abstract
The invention discloses a kind of forming method of thin wall tantalum material matter spiral coil, comprise the following steps：First, thin-walled tantalum pipe one end is sealed, then using the filling thin-walled tantalum pipe of fine sand grain, filling seals the other end of thin-walled tantalum pipe after finishing；2nd, mould is made；3rd, mould is fixed on the workbench of positioner, be then fixedly connected with one end of thin-walled tantalum pipe with mould, opening positioner makes workbench at the uniform velocity rotate, and thin-walled tantalum pipe is molded along mould coiling；4th, treat to close positioner after the completion of coiling shaping, cut off the two ends of thin-walled tantalum pipe, thin-walled tantalum pipe is then screwed out from mould, remove the fine sand grain in thin-walled tantalum pipe, obtain thin wall tantalum material matter spiral coil.The method of the present invention is easy to operate, and efficiency high is with low cost.Coil pipe presentation quality using the method shaping of the present invention is high, and surface is smooth, and outside does not produce flattening, and inner side does not produce fold because compressing, the defect such as surface flawless, scuffing, pit.
Description
Technical field
The invention belongs to coil pipe field shaping technique, and in particular to a kind of shaping side of thin wall tantalum material matter spiral coil
Method.
Background technology
Tantalum is that a kind of plasticity is preferable, the refractory metal with the superior function such as extremely strong acid and alkali resistance and liquid metal,
In the resistless strong corrosive environment of other Rare Metals Materials, tantalum material can be competent at, its resistance to corrosion energy and glass
Compare favourably, due to the low content in this special nature and the earth's crust of tantalum, make its expensive, therefore adopted the tubing of tantalum material more
With light-wall pipe, the structure of light-wall pipe is again based on spiral coil, and application scenario not only includes hydrochloric acid, concentrated nitric acid and " chloroazotic acid " etc.
Under given conditions, corruption is not occurred for aqueous slkali, chlorine, bromine water, dilute sulfuric acid and other many medicaments by strong corrosive environment
Erosion, application field is unique and wide.
The shaping of tantalum material helix tube is a technical bottleneck in industry all the time, although having mechanism constantly to taste for many years
Examination, research, but molding effect is undesirable always, and its main cause is that tantalum thickness of pipe wall is small, during coil pipe deforms, coil pipe
Outside produces a circumferential tension, and inner side produces a compression, and tension forces light-wall pipe to produce extruding to center position,
Do not supported inside pipe, it is easy to be crushed, ellipse is presented in section.Compression makes to be squeezed on the inside of light-wall pipe, it is same because
Do not supported for pipe inside, inner side deforms, produce fold, flattened and fold causes coil pipe shaping failure.
In addition, needing the tubing of longer dimension when making coil pipe, a standard pipe length does not reach far, it is necessary to many spellings
Boxing is connect, this certainly will just form splicing welding joint on tubing, tubing is changed into spiral shell from straight tube generation plastic deformation during coil pipe
Shape is revolved, weld seam is possible to be destroyed and reduces lumber recovery.
The content of the invention
The technical problems to be solved by the invention are that there is provided a kind of thin wall tantalum material matter for above-mentioned the deficiencies in the prior art
The forming method of spiral coil.This method successfully solves thin-walled pipe dish using the method for filling fine sand grain inside light-wall pipe
The technical barrier of pipe deformation, keeps the thin-walled tantalum tube section after shaping caused by being pressurized during tubular change on the inside of the tension of outside
It is circular；Mould is manufactured according to the coil arrangement and size to be molded, the coiling for realizing coil pipe using the rotation of positioner is molded,
The coil size of shaping is accurate, and error is small.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of thin wall tantalum material matter spiral coil
Forming method, it is characterised in that comprise the following steps：
Step 1: thin-walled tantalum pipe one end that wall thickness is not more than 1mm is sealed, then using the filling thin-walled tantalum pipe of fine sand grain,
Filling seals the other end of thin-walled tantalum pipe after finishing；The average grain diameter of the fine sand grain is 0.25mm~0.35mm, fineness mould
Number is 1.6~2.2；
Step 2: making mould according to the shape and size for the thin wall tantalum material matter spiral coil to be molded；
Step 3: mould described in step 2 is fixed on the workbench of positioner, then it will be filled with step one
One end of fine sand grain and the sealed thin-walled tantalum pipe in two ends is fixedly connected with mould, and opening positioner makes workbench at the uniform velocity rotate,
Thin-walled tantalum pipe is molded along mould coiling；
Step 4: positioner is closed after the completion for the treatment of the shaping of coiling described in step 3, the thin-walled tantalum after excision coiling shaping
The two ends of pipe, then screw out thin-walled tantalum pipe from mould, remove the fine sand grain in thin-walled tantalum pipe, obtain thin wall tantalum material matter spiral shape
Coil pipe.
A kind of forming method of above-mentioned thin wall tantalum material matter spiral coil, it is characterised in that mould described in step 2
Including columned die ontology, the circumferencial direction car of the die ontology has and the thin wall tantalum material matter spiral disc to be molded
The helical groove that pipe is engaged, the surface roughness Ra of the helical groove is not more than 3.2 μm.
A kind of forming method of above-mentioned thin wall tantalum material matter spiral coil, it is characterised in that the thin wall tantalum material matter spiral shell
Between the axis for the two neighboring helical groove for revolving the distance between the axis of adjacent two pipe of shape coil pipe L1 and mould away from
It is equal from L2.
A kind of forming method of above-mentioned thin wall tantalum material matter spiral coil, it is characterised in that the helical groove it is vertical
Section includes symmetrically arranged two chamferings section and the arc section between two chamferings section, and for connect chamfering section and
The straightway of arc section, the radius R of the arc section is equal with the radius of thin-walled tantalum pipe.
The forming method of above-mentioned a kind of thin wall tantalum material matter spiral coil, it is characterised in that the arc section is semicircle
Arc.
A kind of forming method of above-mentioned thin wall tantalum material matter spiral coil, it is characterised in that the chamfering of the chamfering section
Radius r is 0.1~0.16 times of the radius R of arc section.
A kind of forming method of above-mentioned thin wall tantalum material matter spiral coil, it is characterised in that the depth of the helical groove
Spend radius R big 8mm~10mms of the H than arc section.
A kind of forming method of above-mentioned thin wall tantalum material matter spiral coil, it is characterised in that coiling described in step 3
The speed of shaping is not more than 5mm/s.
The present invention has advantages below compared with prior art：
1st, the present invention using filling fine sand grain inside light-wall pipe method, during successfully solving light-wall pipe coil pipe deformation
The technical barrier of pipe deformation, is held round the thin-walled tantalum tube section after shaping caused by being pressurized on the inside of the tension of outside.
2nd, the present invention manufactures mould according to the coil arrangement and size to be molded, and coil pipe is realized using the rotation of positioner
Coiling shaping, the coil size of shaping is accurate, and error is small.
3rd, method of the invention is easy to operate, and efficiency high is with low cost.Using the coil pipe outward appearance of the method shaping of the present invention
Quality is high, and surface is smooth, and outside does not produce flattening, and inner side is not because compression produces fold, surface flawless, scuffing, pit
Etc. defect.
4th, 100%RT detections are carried out to the splicing welding joint of the thin wall tantalum material matter spiral coil after present invention shaping, met
II grade of regulation of JB/T4730.2-2005；100%PT detections are carried out to face of weld, meet I grade of regulation of JB/T4730.5-2005.
With reference to the accompanying drawings and examples, technical scheme is described in further detail.
Brief description of the drawings
Fig. 1 is the assembling schematic diagram of inventive die and positioner.
Fig. 2 is the structural representation of inventive die.
The structural representation for the thin wall tantalum material matter spiral coil that Fig. 3 is molded for the present invention.
Fig. 4 is the Longitudinal cross section schematic of helical groove of the present invention.
Description of reference numerals：
1-workbench；2-mould；2-1-die ontology；
2-2-helical groove；2-21-chamfering section；2-22-arc section；
2-23-straightway；3-thin-walled tantalum pipe.
Embodiment
Embodiment 1
The present embodiment uses specification for the Φ 38mm × 0.8mm forming thin-walled tantalum material spiral coil of thin-walled tantalum pipe,
The distance between the axis of adjacent two pipe of thin wall tantalum material matter spiral coil of shaping L1 is 80mm, the specific method bag of shaping
Include following steps：
Step 1: thin-walled tantalum pipe one end is sealed, then using the filling thin-walled tantalum pipe of fine sand grain, persistently struck in filling process
Beat or vibration thin-walled tantalum pipe, it is ensured that the substantial densification of fine sand grain filling, filling is (anti-by the other end sealing of thin-walled tantalum pipe after finishing
Only fine sand grain leakage)；The average grain diameter of the fine sand grain is 0.25mm~0.35mm, and modulus of fineness is 1.6~2.2；
Step 2: making mould 2, such as Fig. 2 according to the shape and size for the thin wall tantalum material matter spiral coil to be molded
With shown in Fig. 3, the mould includes columned die ontology 2-1, and the circumferencial direction car of the die ontology 2-1 has and wanted
The helical groove 2-2 that the thin wall tantalum material matter spiral coil of shaping is engaged, the surface roughness Ra of the helical groove 2-2 is not
More than 3.2 μm；The distance between the two neighboring helical groove 2-2 axis of the mould 2 L2 is 80mm；As shown in figure 4,
The longitudinal section of the helical groove 2-2 includes symmetrically arranged two chamferings section 2-21 and between two chamfering section 2-21
Arc section 2-22, and half for the straightway 2-23, the arc section 2-22 that connect chamfering section 2-21 and arc section 2-22
Footpath R is 19mm；The arc section 2-22 is semi arch；The chamfer radius r of the chamfering section 2-21 is 1.9mm；The spiral is recessed
Groove 2-2 depth H is 28mm；
Step 3: as shown in figure 1, mould 2 described in step 2 is fixed on the workbench 1 of positioner, then by step
One end filled with fine sand grain and the sealed thin-walled tantalum pipe 3 in two ends in rapid one is fixedly connected with the end of mould 2, opens positioner
Workbench is at the uniform velocity rotated, thin-walled tantalum pipe 3 is molded along mould coiling, the speed of coiling shaping for 5mm/s (shaping per second
The length of thin-walled tantalum pipe is 5mm)；
Step 4: positioner is closed after the completion for the treatment of the shaping of coiling described in step 3, the thin-walled tantalum after excision coiling shaping
The two ends of pipe 3, then screw out thin-walled tantalum pipe 3 from mould 2, remove the fine sand grain in thin-walled tantalum pipe 3, obtain thin wall tantalum material matter spiral shell
Revolve shape coil pipe.
The accurate size of the thin wall tantalum material matter spiral coil of the present embodiment shaping, coil surface flat smooth, corrugationless,
The defects such as flattening, crackle, scuffing, after testing, the difference of maximum inner diameter and minimum diameter is not more than on the same section of coil pipe of shaping
The 5% of pipe internal diameter before shaping, higher than the requirement of national standard 15%.Spelling to the thin wall tantalum material matter spiral coil after shaping
Welding seam carries out 100%RT, meets II grade of regulation of JB/T4730.2-2005；100%PT detections are carried out to face of weld, met
I grade of regulation of JB/T4730.5-2005.
Embodiment 2
The present embodiment uses specification for the Φ 45mm × 1mm forming thin-walled tantalum material spiral coil of thin-walled tantalum pipe, be into
The distance between the axis of adjacent two pipe of thin wall tantalum material matter spiral coil of type L1 is 100mm, the specific method bag of shaping
Include following steps：
Step 1: thin-walled tantalum pipe one end is sealed, then using the filling thin-walled tantalum pipe of fine sand grain, persistently struck in filling process
Beat or vibration thin-walled tantalum pipe, it is ensured that the substantial densification of fine sand grain filling, filling is (anti-by the other end sealing of thin-walled tantalum pipe after finishing
Only fine sand grain leakage)；The average grain diameter of the fine sand grain is 0.25mm~0.35mm, and modulus of fineness is 1.6~2.2；
Step 2: making mould 2, such as Fig. 2 according to the shape and size for the thin wall tantalum material matter spiral coil to be molded
With shown in Fig. 3, the mould includes columned die ontology 2-1, and the circumferencial direction car of the die ontology 2-1 has and wanted
The helical groove 2-2 that the thin wall tantalum material matter spiral coil of shaping is engaged, the surface roughness Ra of the helical groove 2-2 is not
More than 3.2 μm；The distance between the two neighboring helical groove 2-2 axis of the mould 2 L2 is 100mm；Such as Fig. 4 institutes
Show, the longitudinal section of the helical groove 2-2 include symmetrically arranged two chamferings section 2-21 and positioned at two chamferings section 2-21 it
Between arc section 2-22, and for connect chamfering section 2-21 and arc section 2-22 straightway 2-23, the arc section 2-22
Radius R be 22.5mm；The arc section 2-22 is semi arch；The chamfer radius r of the chamfering section 2-21 is 3.6mm；It is described
Helical groove 2-2 depth H is 30.5mm；
Step 3: as shown in figure 1, mould 2 described in step 2 is fixed on the workbench 1 of positioner, then by step
One end filled with fine sand grain and the sealed thin-walled tantalum pipe 3 in two ends in rapid one is fixedly connected with the end of mould 2, opens positioner
Workbench is at the uniform velocity rotated, thin-walled tantalum pipe 3 is molded along mould coiling, the speed of coiling shaping for 4mm/s (shaping per second
The length of thin-walled tantalum pipe is 4mm)；
Step 4: positioner is closed after the completion for the treatment of the shaping of coiling described in step 3, the thin-walled tantalum after excision coiling shaping
The two ends of pipe 3, then screw out thin-walled tantalum pipe 3 from mould 2, remove the fine sand grain in thin-walled tantalum pipe 3, obtain thin wall tantalum material matter spiral shell
Revolve shape coil pipe.
The accurate size of the thin wall tantalum material matter spiral coil of the present embodiment shaping, light-wall pipe surfacing is smooth, aptychus
The defects such as wrinkle, flattening, crackle, scuffing, after testing, the difference of maximum inner diameter and minimum diameter is little on the same section of coil pipe of shaping
In 5% of pipe internal diameter before shaping, higher than the requirement of national standard 15%.To the thin wall tantalum material matter spiral coil after shaping
Splicing welding joint carries out 100%RT, meets II grade of regulation of JB/T4730.2-2005；100%PT detections, symbol are carried out to face of weld
Close I grade of regulation of JB/T4730.5-2005.
Embodiment 3
The present embodiment uses specification for the Φ 57mm × 1mm forming thin-walled tantalum material spiral coil of thin-walled tantalum pipe, be into
The distance between the axis of adjacent two pipe of thin wall tantalum material matter spiral coil of type L1 is 150mm, the specific method bag of shaping
Include following steps：
Step 1: thin-walled tantalum pipe one end is sealed, then using the filling thin-walled tantalum pipe of fine sand grain, persistently struck in filling process
Beat or vibration thin-walled tantalum pipe, it is ensured that the substantial densification of fine sand grain filling, filling is (anti-by the other end sealing of thin-walled tantalum pipe after finishing
Only fine sand grain leakage)；The average grain diameter of the fine sand grain is 0.25mm~0.35mm, and modulus of fineness is 1.6~2.2；
Step 2: making mould 2, such as Fig. 2 according to the shape and size for the thin wall tantalum material matter spiral coil to be molded
With shown in Fig. 3, the mould includes columned die ontology 2-1, and the circumferencial direction car of the die ontology 2-1 has and wanted
The helical groove 2-2 that the thin wall tantalum material matter spiral coil of shaping is engaged, the surface roughness Ra of the helical groove 2-2 is not
More than 3.2 μm；The distance between the two neighboring helical groove 2-2 axis of the mould 2 L2 is 150mm；Such as Fig. 4 institutes
Show, the longitudinal section of the helical groove 2-2 include symmetrically arranged two chamferings section 2-21 and positioned at two chamferings section 2-21 it
Between arc section 2-22, and for connect chamfering section 2-21 and arc section 2-22 straightway 2-23, the arc section 2-22
Radius be 28.5mm；The arc section 2-22 is semi arch；The chamfer radius r of the chamfering section 2-21 is 3.7mm；The spiral shell
The depth H for revolving groove 2-2 is 38.5mm；
Step 3: as shown in figure 1, mould 2 described in step 2 is fixed on the workbench 1 of positioner, then by step
One end filled with fine sand grain and the sealed thin-walled tantalum pipe 3 in two ends in rapid one is fixedly connected with the end of mould 2, opens positioner
Workbench is at the uniform velocity rotated, thin-walled tantalum pipe 3 is molded along mould coiling, the speed of coiling shaping for 3mm/s (shaping per second
The length of thin-walled tantalum pipe is 3mm)；
Step 4: positioner is closed after the completion for the treatment of the shaping of coiling described in step 3, the thin-walled tantalum after excision coiling shaping
The two ends of pipe 3, then screw out thin-walled tantalum pipe 3 from mould 2, remove the fine sand grain in thin-walled tantalum pipe 3, obtain thin wall tantalum material matter spiral shell
Revolve shape coil pipe.
The accurate size of the thin wall tantalum material matter spiral coil of the present embodiment shaping, light-wall pipe surfacing is smooth, aptychus
The defects such as wrinkle, flattening, crackle, scuffing, after testing, the difference of maximum inner diameter and minimum diameter is little on the same section of coil pipe of shaping
In 5% of pipe internal diameter before shaping, higher than the requirement of national standard 15%.To the thin wall tantalum material matter spiral coil after shaping
Splicing welding joint carries out 100%RT, meets II grade of regulation of JB/T4730.2-2005；100%PT detections, symbol are carried out to face of weld
Close I grade of regulation of JB/T4730.5-2005.
It is described above, only it is presently preferred embodiments of the present invention, any limitation is not done to the present invention, it is every according to invention skill
Any simple modification, change and equivalent structure change that art is substantially made to above example, still fall within the technology of the present invention
In the protection domain of scheme.
Claims (4)
1. a kind of forming method of thin wall tantalum material matter spiral coil, it is characterised in that comprise the following steps：
Step 1: thin-walled tantalum pipe one end that wall thickness is not more than 1mm is sealed, then using the filling thin-walled tantalum pipe of fine sand grain, filling
The other end of thin-walled tantalum pipe is sealed after finishing；The average grain diameter of the fine sand grain is 0.25mm~0.35mm, and modulus of fineness is
1.6~2.2；
Step 2: making mould (2) according to the shape and size for the thin wall tantalum material matter spiral coil to be molded；The mould
Including columned die ontology (2-1), the circumferencial direction car of the die ontology (2-1) has and the thin wall tantalum material to be molded
The helical groove (2-2) that matter spiral coil is engaged, the surface roughness Ra of the helical groove (2-2) is not more than 3.2 μm；
The distance between the axis of adjacent two pipe of the thin wall tantalum material matter spiral coil L1 and mould (2) two neighboring spiral are recessed
The distance between the axis of groove (2-2) L2 is equal；The longitudinal section of the helical groove (2-2) includes symmetrically arranged two and fallen
Angle section (2-21) and the arc section (2-22) between two chamferings section (2-21), and for connect chamfering section (2-21) and
The straightway (2-23) of arc section (2-22), the radius R of the arc section (2-22) is equal with the radius of thin-walled tantalum pipe (3)；Institute
State radius R big 8mm~10mm of the depth H than arc section (2-22) of helical groove (2-2)；
Step 3: mould described in step 2 (2) is fixed on the workbench of positioner (1), then it will be filled in step one
The one end for having fine sand grain and the sealed thin-walled tantalum pipe (3) in two ends is fixedly connected with mould (2), and opening positioner makes workbench even
Speed rotation, thin-walled tantalum pipe is molded along mould coiling；
Step 4: positioner is closed after the completion for the treatment of the shaping of coiling described in step 3, the thin-walled tantalum pipe (3) after excision coiling shaping
Two ends, then from mould (2) screw out thin-walled tantalum pipe (3), remove thin-walled tantalum pipe (3) it is inner fine sand grain, obtain thin wall tantalum material
Matter spiral coil.
2. a kind of forming method of thin wall tantalum material matter spiral coil according to claim 1, it is characterised in that the circle
Segmental arc (2-22) is semi arch.
3. a kind of forming method of thin wall tantalum material matter spiral coil according to claim 1, it is characterised in that it is described fall
The chamfer radius r of angle section (2-21) is 0.1~0.16 times of the radius R of arc section (2-22).
4. a kind of forming method of thin wall tantalum material matter spiral coil according to claim 1, it is characterised in that step 3
Described in coiling shaping speed be not more than 5mm/s.
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| CN201510603324.9A CN105170743B (en) | 2015-09-21 | 2015-09-21 | A kind of forming method of thin wall tantalum material matter spiral coil |
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| CN201510603324.9A CN105170743B (en) | 2015-09-21 | 2015-09-21 | A kind of forming method of thin wall tantalum material matter spiral coil |
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| CN105170743B true CN105170743B (en) | 2017-09-12 |
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| CN108906940A (en) * | 2018-06-28 | 2018-11-30 | 湖州织里宝丰铝业有限公司 | Aluminium alloy ring pipe finishing circular arc molding device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201008909Y (en) * | 2007-02-12 | 2008-01-23 | 合肥美菱太阳能科技有限责任公司 | Automatic brass pipe winding round machine |
| CN101722221A (en) * | 2009-11-06 | 2010-06-09 | 王吉光 | Processing process of screw pipe bending machine |
| CN201855878U (en) * | 2010-10-20 | 2011-06-08 | 天津天海石化设备制造有限公司 | Inner tube mould for processing non-connector heat exchange spiral tube |
| CN202762794U (en) * | 2012-09-12 | 2013-03-06 | 上海东方泵业(集团)有限公司 | Spiral pipe cold rolling device |
| CN202984379U (en) * | 2012-12-11 | 2013-06-12 | 大连金州重型机器有限公司 | Novel spiral pipe device |
| DE102012101523A1 (en) * | 2012-02-24 | 2013-08-29 | TEKTON BENDING GmbH & Co. KG | Molded body for manufacturing spiral tubes utilized for heat exchangers, has mold jaws movable into inner position from outer periphery of base mold body to remove tubes from molded body, and control unit controls rotation of molded body |
| CN203804001U (en) * | 2014-05-07 | 2014-09-03 | 边财浪 | Manual bending device for spiral copper pipes |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20120042392A (en) * | 2010-10-25 | 2012-05-03 | 원종암 | Manufacturing methods for spiral type heat-exchanger |
-
2015
- 2015-09-21 CN CN201510603324.9A patent/CN105170743B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201008909Y (en) * | 2007-02-12 | 2008-01-23 | 合肥美菱太阳能科技有限责任公司 | Automatic brass pipe winding round machine |
| CN101722221A (en) * | 2009-11-06 | 2010-06-09 | 王吉光 | Processing process of screw pipe bending machine |
| CN201855878U (en) * | 2010-10-20 | 2011-06-08 | 天津天海石化设备制造有限公司 | Inner tube mould for processing non-connector heat exchange spiral tube |
| DE102012101523A1 (en) * | 2012-02-24 | 2013-08-29 | TEKTON BENDING GmbH & Co. KG | Molded body for manufacturing spiral tubes utilized for heat exchangers, has mold jaws movable into inner position from outer periphery of base mold body to remove tubes from molded body, and control unit controls rotation of molded body |
| CN202762794U (en) * | 2012-09-12 | 2013-03-06 | 上海东方泵业(集团)有限公司 | Spiral pipe cold rolling device |
| CN202984379U (en) * | 2012-12-11 | 2013-06-12 | 大连金州重型机器有限公司 | Novel spiral pipe device |
| CN203804001U (en) * | 2014-05-07 | 2014-09-03 | 边财浪 | Manual bending device for spiral copper pipes |
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| CN105170743A (en) | 2015-12-23 |
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