CN103963326B - Copper moulds the manufacture method of pipe - Google Patents
Copper moulds the manufacture method of pipe Download PDFInfo
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- CN103963326B CN103963326B CN201410182256.9A CN201410182256A CN103963326B CN 103963326 B CN103963326 B CN 103963326B CN 201410182256 A CN201410182256 A CN 201410182256A CN 103963326 B CN103963326 B CN 103963326B
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- copper
- pipe
- wall
- moulds
- manufacture method
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 142
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 142
- 239000010949 copper Substances 0.000 title claims abstract description 142
- 238000000034 method Methods 0.000 title claims abstract description 45
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 28
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 51
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 51
- 239000004593 Epoxy Substances 0.000 claims abstract description 20
- 239000004744 fabric Substances 0.000 claims abstract description 15
- 238000001746 injection moulding Methods 0.000 claims abstract description 15
- 239000011152 fibreglass Substances 0.000 claims abstract description 14
- 239000007921 spray Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 5
- 238000003466 welding Methods 0.000 claims description 53
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 26
- 229910052786 argon Inorganic materials 0.000 claims description 13
- 238000007493 shaping process Methods 0.000 claims description 11
- 239000004411 aluminium Substances 0.000 claims description 8
- 239000007767 bonding agent Substances 0.000 claims description 7
- 239000003973 paint Substances 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 5
- 229910001220 stainless steel Inorganic materials 0.000 claims description 5
- 239000010935 stainless steel Substances 0.000 claims description 5
- 241001640558 Cotoneaster horizontalis Species 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 4
- 239000007924 injection Substances 0.000 claims description 4
- 238000005476 soldering Methods 0.000 claims description 4
- 238000005507 spraying Methods 0.000 claims description 3
- 229920003002 synthetic resin Polymers 0.000 claims description 3
- 239000000057 synthetic resin Substances 0.000 claims description 3
- VMQMZMRVKUZKQL-UHFFFAOYSA-N Cu+ Chemical compound [Cu+] VMQMZMRVKUZKQL-UHFFFAOYSA-N 0.000 claims 1
- 238000009413 insulation Methods 0.000 abstract description 4
- 102000004142 Trypsin Human genes 0.000 abstract 1
- 108090000631 Trypsin Proteins 0.000 abstract 1
- 239000012588 trypsin Substances 0.000 abstract 1
- 239000003822 epoxy resin Substances 0.000 description 7
- 229920000647 polyepoxide Polymers 0.000 description 7
- 239000011248 coating agent Substances 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 230000004048 modification Effects 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000007812 deficiency Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000002421 anti-septic effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Landscapes
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
The invention discloses the manufacture method that a kind of copper moulds pipe, it comprises copper pipe, and copper pipe is coated with fiberglass gridding cloth, and fiberglass gridding cloth trypsin method has high temperature resistant epoxy, the copper pipe of high temperature resistant epoxy is had to be outside equipped with one deck aluminum pipe in spray, finally at the outer injection moulding PPR material of aluminum pipe.With this, provide that copper pipe periphery is smooth, manufacture method that complete smooth, the insulation of weld seam, bearing capacity is strong, injection moulding efficiency is high copper mould pipe.
Description
Technical field
The present invention relates to the manufacture method of metal compounded pipe, particularly relate to the manufacture method that a kind of copper moulds pipe.
Background technology
Current, along with the progress of science and technology, the application that copper moulds pipe is more and more universal.No matter be manufacture industry, or all can use copper in the middle of residential households moulds pipe.So the demand that pipe is moulded for copper in current market is increasing.
At present, the manufacture method that a large amount of enterprise manufacturing pipeline adopts is: copper strips feeding; Through stainless steel automatic tuber, copper pipe carries out to copper strips shaping; Weld with the weld seam of bonding machine to shaping copper tube; Preheating is carried out to copper pipe; To copper pipe outer wall injection moulding PPR, wherein, copper pipe is shaping synchronously carries out on same production line with copper pipe outer wall injection moulding PPR; Cutting is put in storage.
But copper strips edge can overlap layer in the forming process of copper tube, not only can increase throat thickness, and can cause after welding terminates, the out-of-flatness of circular copper pipe outer circumference surface; Meanwhile, the copper strips that copper moulds pipe employing is generally the thin copper belt that thickness is less than 1mm, and such thickness makes the difficult parameters of welding procedure to control in optimum value, and when easily causing welding, temperature is too high, and the weld seam causing copper strips to form further is breakdown; And, the good heat conductivity of thin copper tube, can transfer heat to the PPR product of copper pipe periphery rapidly, this can cause the heat losses in copper pipe, and causes the deformation failure of expanding with heat and contract with cold of PPR product; And, in high volume production process, the shaping speed of copper pipe is identical with the speed of copper pipe outer injection PPR, because the defect of copper pipe welding condition aspect adjustment, the speed that copper pipe can be caused the to weld speed more shaping than copper pipe injection moulding PPR is slower, and then the welding of generation copper pipe lags behind the shaping phenomenon of copper pipe injection moulding PPR, make the speed of injection moulding PPR not reach maximum, reduce the whole efficiency that copper moulds pipe manufacturer; In addition, mould the copper strips thinner thickness adopted in the manufacture process of pipe at copper, thus the copper that copper pipe and plastics are formed to mould pipe hardness more weak, cause copper to mould the bearing capacity of pipe weak.
Summary of the invention
The technical problem to be solved in the present invention is, overcomes existing technological deficiency, provides that a kind of copper pipe periphery is smooth, manufacture method that complete smooth, the insulation of weld seam, bearing capacity is strong, injection moulding efficiency is high copper mould pipe.
Technical solution of the present invention is:
1. copper strips charging, plug is driven to rotate and move forward vertically by the driving mechanism in frame, fixing with the front end of plug foremost of described copper strips, formed by the bisector of described copper strips width and the axis of plug, angle is 20 ° ~ 40 °, frame is fixed with the elastic device for being pushed against by the adjacent strips of copper be wrapped on plug;
2. bonding machine welded seam, the driving mechanism in frame continues to drive plug rotate and move forward, and frame is fixed with the bonding machine that weld seam aimed at by soldering tip, described weld seam pushes against by copper strips two adjacent side the contact surface formed, and described bonding machine is argon arc welding machine;
3. full circle process is carried out to the copper pipe welded;
4. the pre-heat treatment is carried out to copper pipe outer wall, make the temperature of copper pipe outer wall reach 240 ~ 260 DEG C;
5. spray epoxy paint is carried out to the copper pipe outer wall that preheating completes;
6. by the coated fiberglass gridding cloth of copper pipe outer wall through the process of spray epoxy paint;
7. by the pipeline outer wall spraying high temperature resistant epoxy through coated fiberglass gridding cloth process;
8. on the automatic tuber of stainless steel, along copper pipe axis direction, the two edges of aluminium strip are docked at the pipeline outer wall being coated with high temperature resistant epoxy, shaping aluminum pipe, described aluminum pipe diameter equals the outer diameter tube being coated with high temperature resistant epoxy;
9. carry out soldering to the weld seam of aluminum pipe, what described welding adopted is mash welder, and the weld seam of described aluminum pipe in the axial direction every 15 ~ 20mm welding once;
10. the outer wall of aluminum pipe is heated, make the temperature of aluminum pipe outer wall reach 240 ~ 260 DEG C;
at aluminum pipe outer wall spray bonding agent;
by injection machine to aluminum pipe outer wall injection moulding PPR material, make copper and mould pipe;
mould pipe by cutter to copper to cut off.
As a modification of the present invention, described step 1. in the thickness of copper strips be 0.2 ~ 0.4mm.
As a modification of the present invention, described step 1. in the bisector of copper strips width and the axis of plug formed by angle be 30 °.
As a modification of the present invention, described step 1. in elastic device by push rod, stage clip and form for stage clip and the spacing casing of push rod, the front end of described push rod is provided with projection.
As a modification of the present invention, described step 2. in the welding current of argon arc welding machine be 20 ~ 25 amperes, weldingvoltage is 12 ~ 15 volts, the speed of welding of described argon arc welding machine is 5000 ~ 6000mm per minute, and described plug drives the speed of copper strips axial advancement to be 4000 ~ 5000mm per minute.
As a modification of the present invention, described step 6. in fiberglass gridding cloth parcel radial thickness be 1 ~ 1.2mm.
As a modification of the present invention, described step 10. in the outer wall of aluminum pipe heat, make the temperature of aluminum pipe outer wall reach 250 DEG C.
Improve as another kind of the present invention, described step
in bonding agent be synthetic resin.
Compared with prior art, the present invention has following characteristics:
1, copper strips is around Mandrel Rotating charging, can ensure that copper strips forms the planarization of copper pipe periphery in copper pipe process.
2, the front end of elastic device heads on copper strips edge, and the projection of elastic device press against copper strip surface, and prevent copper strips generation play, the weld seam that copper strips is formed closely pastes jail, can ensure that weld seam is even after welding completes, complete smooth.
3, at copper pipe outer wall spray epoxy resin coating, wherein epoxy resin coating has strong adhesion, the feature that anti-corrosive properties are strong, again because copper pipe itself is thinner, copper pipe service time can be prevented long and corrosion phenomenon occurs.
4, increase layer of glass grid cloth through antiseptic copper pipe outer wall, wherein fiberglass gridding cloth has the feature of insulation, leakproof, can prevent the loss of heat in copper pipe.
5, by setting up one deck aluminium strip to copper pipe periphery, after aluminium strip is welded into aluminum pipe, hardness and the intensity of aluminum pipe entirety are higher, and the entirety that copper pipe and aluminum pipe are formed can make up the shortcoming that copper that single copper pipe and plastics form moulds the rigidity deficiency of pipe own, improves the bearing capacity that copper moulds pipe entirety.
6, the spot welding every 15 ~ 20mm is carried out to the weld seam of aluminium strip, the bonding speed of aluminum pipe can be improved, and drive copper to mould the manufacture efficiency of pipe entirety, prevent the speed of welding of pipeline from lagging behind injection moulding speed that copper moulds pipe.
7, the welding current of argon arc welding machine is 20 ~ 25 amperes, weldingvoltage is 12 ~ 15 volts, speed of welding is 5000 ~ 6000mm per minute, such welding parameter can improve the speed of production of welding procedure, further raising subsequent copper moulds the injection moulding speed of pipe, prevent copper pipe speed of welding from lagging behind injection moulding speed that copper moulds pipe, improves copper and moulds pipe production efficiency.
Accompanying drawing explanation
Fig. 1 is the flow chart that copper of the present invention moulds the manufacture method of pipe.
Fig. 2 is the structural representation of Fig. 1 Elastic device.
Fig. 3 is the welding procedure schematic diagram that copper of the present invention moulds aluminum pipe in the manufacture method of pipe.
Shown in figure: 1, copper strips, 2, plug, 3, bonding machine, 4, full circle, 5, preheating, 6, epoxy resin coating, 7, fiberglass gridding cloth, 8, high temperature resistant epoxy, 9, aluminium strip, 10, welding, 11, heating, 12, bonding agent, 13, weld seam, 14, elastic device, 15, injection moulding, 16, cut off, 17, push rod, 18, stage clip, 19, casing, 20, projection.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
1. copper strips 1 charging, plug 2 is driven to rotate and move forward vertically by the driving mechanism in frame, fixing with the front end of plug 2 foremost of described copper strips 1, formed by the bisector of described copper strips 1 width and plug 2 axis, angle is 20 ° ~ 40 °, frame is fixed with the elastic device 14 for being pushed against by the adjacent strips of copper be wrapped on plug 21;
2. bonding machine 3 welded seam 13, driving mechanism in frame continues to drive plug 2 rotate and move forward, frame is fixed with the bonding machine 3 that weld seam 13 aimed at by soldering tip, described weld seam 13 pushes against by copper strips 1 liang of adjacent side the contact surface formed, and described bonding machine 3 is argon arc welding machines;
3. carry out full circle 4 to the copper pipe welded to process;
4. carry out preheating 5 to copper pipe outer wall to process, make the temperature of copper pipe outer wall reach 240 ~ 260 DEG C;
5. spray epoxy paint 6 is carried out to the copper pipe outer wall that preheating completes;
6. the coated fiberglass gridding cloth 7 of copper pipe outer wall will processed through spray epoxy paint 6;
7. the pipeline outer wall spraying high temperature resistant epoxy 8 will processed through coated fiberglass gridding cloth 7;
8. on the automatic tuber of stainless steel, along copper pipe axis direction, the two edges of aluminium strip 9 are docked at the pipeline outer wall being coated with high temperature resistant epoxy 8, shaping aluminum pipe, described aluminum pipe diameter equals the outer diameter tube being coated with high temperature resistant epoxy 8;
9. carry out welding 10 to the weld seam of aluminum pipe to process, what described welding 10 adopted is mash welder, and the weld seam of described aluminum pipe in the axial direction every 15 ~ 20mm welding once;
10. carry out heating 11 to the outer wall of aluminum pipe to process, make the temperature of aluminum pipe outer wall reach 240 ~ 260 DEG C;
at aluminum pipe outer wall spray bonding agent 12;
by injection machine to aluminum pipe outer wall injection moulding 15PPR material, make copper and mould pipe;
by cutter, pipe is moulded to copper and cut off 16.
Described step 1. in the thickness of copper strips 1 be 0.2 ~ 0.4mm, in actual production of the present invention, the thickness of copper strips 1 is 0.2mm.
Described step 1. in angle formed by the bisector of copper strips 1 width and the axis of plug 2 be 30 °.
Described step 1. in elastic device 14 by push rod 17, stage clip 18 and form for stage clip 18 and the spacing casing 19 of push rod 17, the front end of described push rod 17 is provided with projection 20.
Described step 2. in the welding current of argon arc welding machine be 20 ~ 25 amperes, weldingvoltage is 12 ~ 15 volts, the speed of welding of described argon arc welding machine is 5000 ~ 6000mm per minute, and described plug 2 drives the speed of copper strips 1 axial advancement to be 4000 ~ 5000mm per minute.
Described step 6. in fiberglass gridding cloth 7 wrap up radial thickness be 1 ~ 1.2mm, wherein fiberglass gridding cloth 7 has the feature of insulation, leakproof, can prevent the liquid heat losses in copper pipe.
Described step 10. in the outer wall of aluminum pipe carry out heating 11 and process, make the temperature of aluminum pipe outer wall reach 250 DEG C.
Described step
in bonding agent 12 be synthetic resin.
In implementation process of the present invention, maximum difficult point is the control of welding procedure, and the state modulator wherein welded is particularly important.In the present invention, the technological parameter of bonding machine: speed of welding is 5000mm per minute, welding current is 20 amperes, and weldingvoltage is 12 volts of optimum efficiencies being test of many times and drawing.When the speed butt welded seam of 5000mm per minute carries out rotating welding, formed by the bisector of copper strips 1 width and the axis of plug 2, angle is 30 °, so just can extrapolate plug 2 drives the speed of copper strips 1 axial advancement to be 4000mm per minute, and this drives the speed of copper strips 1 axial advancement to be that the speed of 2000mm per minute increases relative to original plug 2.The arc burning of argon arc welding is stablized, and heat is concentrated, and arc column temperature is high, and welding production efficiency is high, and heat affected area is narrow, and the stress of weldment, distortion, crackle tendency are little.Wherein, argon arc welding uses argon gas as protection gas, and isolated air, prevents welding zone to be oxidized.Wherein, epoxy resin coating 6 has strong adhesion, the feature that anti-corrosive properties are strong, again because copper pipe itself is thinner, copper pipe service time can be prevented long and corrosion phenomenon occurs.
Described step 1. in, the push rod 17 of elastic device 14 near plug 2, the edge pushing up firm copper strips 1 foremost of push rod 17, boss 20 press against copper strips 1, the copper strips excesssive gap preventing from plug 2 from causing in rotary course producing during copper strips 1 rotary feeding, and affect the welding procedure of subsequent weld 13.
Described step 5. in, epoxy resin coating 6 has strong adhesion, resistance to chemical attack, good heat stability.Wherein, because the epoxy resin be cured contains stable phenyl ring, so it is by force that the present invention mainly utilizes that epoxy resin coating generally has good corrosion resistance.Wherein, corrosion resistance comprises the characteristics such as acidproof, alkaline-resisting and organic solvent-resistant.
Described step 7. in, high temperature resistant epoxy 8 Long-Time Service can be resistance to 200 ~ 300 DEG C, consider that follow-up aluminum pipe also will be heated to 250 DEG C, so, increase one deck high temperature resistant epoxy 8 and go for various metals and nonmetallic materials itself or glued joint each other or permanent sealing.
Described step 8. in, on the automatic tuber of stainless steel that aluminium strip is produced in Chenzhou City Li Sen Machinery Co., Ltd. of Hunan Province, shaping solder design gets up linearly shape.That is, the weld of aluminum pipe couples together in straight line, and mash welder carries out the welding every 15 ~ 20mm to linear weld seam, and what adopt in the present invention is every 15mm welding once, greatly can improve welding efficiency, and then improve the shaping speed that copper moulds pipe entirety.
Described step 9. in, as shown in Figure 3, the weld seam of aluminum pipe carries out welding 10 and processes, what described welding 10 adopted is mash welder, the weld seam of described aluminum pipe in the axial direction every 15mm welding once, main object is exactly prevent aluminum pipe from flicking because of the elastic force of self, avoids affecting follow-up PPR Shooting Technique.Further, moulding at copper the object increasing one deck aluminum pipe in the middle of pipe is: the intensity of moulding pipe entirety in order to strengthen copper, makes copper mould pipe and can bear certain pressure or load.
The foregoing is only preferred embodiment of the present invention, not for limiting the scope of the invention.All within the claims in the present invention, any amendment done, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. copper moulds a manufacture method for pipe, it is characterized in that: it comprises the following steps:
1. copper strips (1) charging, plug (2) is driven to rotate and move forward vertically by the driving mechanism in frame, fixing with the front end of plug (2) foremost of described copper strips (1), formed by the bisector of described copper strips (1) width and the axis of plug (2), angle is 20 ° ~ 40 °, frame is fixed with the elastic device (14) for being pushed against by the adjacent strips of copper (1) be wrapped on plug (2);
2. bonding machine (3) welded seam (13), driving mechanism in frame continues to drive plug (2) rotate and move forward, frame is fixed with the bonding machine (3) that weld seam (13) aimed at by soldering tip, described weld seam (13) pushes against by copper strips (1) two adjacent side the contact surface formed, and described bonding machine (3) is argon arc welding machine;
3. full circle (4) process is carried out to the copper pipe welded;
4. preheating (5) process is carried out to copper pipe outer wall, make the temperature of copper pipe outer wall reach 240 ~ 260 DEG C;
5. the copper pipe outer wall completed preheating carries out spray epoxy paint (6);
The coated fiberglass gridding cloth of copper pipe outer wall (7) that 6. will process through spray epoxy paint (6);
Pipeline outer wall spraying high temperature resistant epoxy (8) that 7. will process through coated fiberglass gridding cloth (7);
8. on the automatic tuber of stainless steel, along copper pipe axis direction, the two edges of aluminium strip (9) are docked at the pipeline outer wall being coated with high temperature resistant epoxy (8), shaping aluminum pipe, described aluminum pipe diameter equals the outer diameter tube being coated with high temperature resistant epoxy (8);
9. weld (10) process to the weld seam of aluminum pipe, what described welding (10) adopted is mash welder, and the weld seam of described aluminum pipe in the axial direction every 15 ~ 20mm welding once;
10. (11) process is heated to the outer wall of aluminum pipe, make the temperature of aluminum pipe outer wall reach 240 ~ 260 DEG C;
in aluminum pipe outer wall spray bonding agent (12);
by injection machine to aluminum pipe outer wall injection moulding (15) PPR material, make copper and mould pipe;
mould pipe by cutter to copper to cut off (16).
2. copper according to claim 1 moulds the manufacture method of pipe, it is characterized in that: described step 1. in the thickness of copper strips (1) be 0.2 ~ 0.4mm.
3. copper according to claim 1 moulds the manufacture method of pipe, it is characterized in that: described step 1. in angle formed by the bisector of copper strips (1) width and the axis of plug (2) be 30 °.
4. copper according to claim 1 moulds the manufacture method of pipe, it is characterized in that: described step 1. in elastic device (14) by push rod (17), stage clip (18) and form for stage clip (18) and the spacing casing (19) of push rod (17), the front end of described push rod (17) is provided with projection (20).
5. copper according to claim 1 moulds the manufacture method of pipe, it is characterized in that: described step 2. in the welding current of argon arc welding machine be 20 ~ 25 amperes, weldingvoltage is 12 ~ 15 volts, the speed of welding of described argon arc welding machine is 5000 ~ 6000mm per minute, and described plug (2) drives the speed of copper strips (1) axial advancement to be 4000 ~ 5000mm per minute.
6. copper according to claim 1 moulds the manufacture method of pipe, it is characterized in that: described step 6. in the radial thickness that wraps up of fiberglass gridding cloth (7) be 1 ~ 1.2mm.
7. copper according to claim 1 moulds the manufacture method of pipe, it is characterized in that: the described step 10. outer wall of middle aluminum pipe carries out heating (11) process, makes the temperature of aluminum pipe outer wall reach 250 DEG C.
8. copper according to claim 1 moulds the manufacture method of pipe, it is characterized in that: described step
in bonding agent (12) be synthetic resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410182256.9A CN103963326B (en) | 2014-04-30 | 2014-04-30 | Copper moulds the manufacture method of pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410182256.9A CN103963326B (en) | 2014-04-30 | 2014-04-30 | Copper moulds the manufacture method of pipe |
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| Publication Number | Publication Date |
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| CN103963326A CN103963326A (en) | 2014-08-06 |
| CN103963326B true CN103963326B (en) | 2016-04-20 |
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| CN201410182256.9A Active CN103963326B (en) | 2014-04-30 | 2014-04-30 | Copper moulds the manufacture method of pipe |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109513973A (en) * | 2018-12-10 | 2019-03-26 | 镇江康元电器有限公司 | The aluminum pipe grooving processes of novel and high-efficiency |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2407210Y (en) * | 1999-12-02 | 2000-11-22 | 王世宽 | Copper plastic composite pipe |
| CN101337440A (en) * | 2007-07-03 | 2009-01-07 | 天津甘泉集团有限公司 | Method for producing copper mesh reinforcement glass fiber reinforced plastics compound tube |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060093769A1 (en) * | 2004-10-29 | 2006-05-04 | Ghislain Biebuyck | Multilayer tube assembly and methods for forming and using the same |
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2014
- 2014-04-30 CN CN201410182256.9A patent/CN103963326B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2407210Y (en) * | 1999-12-02 | 2000-11-22 | 王世宽 | Copper plastic composite pipe |
| CN101337440A (en) * | 2007-07-03 | 2009-01-07 | 天津甘泉集团有限公司 | Method for producing copper mesh reinforcement glass fiber reinforced plastics compound tube |
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| CN103963326A (en) | 2014-08-06 |
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Denomination of invention: The manufacturing method of copper-plastic pipes Effective date of registration: 20231130 Granted publication date: 20160420 Pledgee: Ningbo Yinzhou Rural Commercial Bank Co.,Ltd. Hengxi Sub branch Pledgor: NINGBO YONGXIANG COPPER PIPELINE Co.,Ltd. Registration number: Y2023330002847 |
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