CN109175283A - A kind of heat pipe material pipe processing technique - Google Patents
A kind of heat pipe material pipe processing technique Download PDFInfo
- Publication number
- CN109175283A CN109175283A CN201811267879.0A CN201811267879A CN109175283A CN 109175283 A CN109175283 A CN 109175283A CN 201811267879 A CN201811267879 A CN 201811267879A CN 109175283 A CN109175283 A CN 109175283A
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- Prior art keywords
- copper
- copper pipe
- pipe
- annealing
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys
- B22D11/004—Copper alloys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/04—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds
- B22D11/045—Continuous casting of metals, i.e. casting in indefinite lengths into open-ended moulds for horizontal casting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22F—CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS AND NON-FERROUS ALLOYS
- C22F1/00—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working
- C22F1/08—Changing the physical structure of non-ferrous metals or alloys by heat treatment or by hot or cold working of copper or alloys based thereon
Abstract
The invention discloses a kind of heat pipe material pipe processing techniques, it include: prepurging drop phosphorus, horizontal casting, milling face, three planetary rollings, three stretchings, disk drawing, online annealing, forming internal threads, after-combustion, intermediate annealing, packing, empty drawing, aligning sawing+carrying out flaw detection and packaging and warehousing, the prepurging drop phosphorus, horizontal casting, forming internal threads, intermediate annealing, empty drawing, aligning sawing processing procedure are the special process for producing TU2 copper pipe and being different from TP2 air-conditioner pipe, realize that the heat pipe material pipe of batch produces in production using this set process flow, copper pipe quality is good.Increase these techniques, the production line of former TP2 copper pipe can be quickly converted to produce the production line of TU2 copper pipe, for copper pipe factory, two kinds of products can be produced simultaneously on same production line, greatly save production cost, improve production efficiency.
Description
Technical field
The present invention relates to copper pipe processing field more particularly to a kind of heat pipe material pipe processing techniques.
Background technique
Heat pipe is a kind of heat sink material with efficient heat transfer, is widely used in aerospace, in military project, and principle is using steaming
Hair refrigeration, keeps heat pipe both ends temperature difference very big, realizes that heat quickly conducts.Heat pipe generally consists of a tube shell, a liquid suction core and an end cover,
The shell of heat pipe, that is, heat pipe material copper pipe, material require to be oxygen-free copper TU2, and supply of material state is half-hard state.
Phosphorized copper TP2 is common air-conditioning copper pipe, is the main production product of most copper pipe manufacturers, such as to produce
TU2 copper pipe sets up another production line, and cost is excessive, at high cost.Therefore how fast from the production line of TP2 copper pipe when actual production
The production line that speed is converted into TU2 copper pipe is problem to be solved.
Summary of the invention
The purpose of the invention is to provide a kind of heat pipe material pipe processing technique, with can be from TP2 in actual production
The production line of copper pipe is quickly converted into the production line of TU2 copper pipe.
Technical problem solved by the invention can be realized using following technical scheme:
A kind of heat pipe material pipe processing technique, mainly for the production of internal thread heat pipe material copper pipe, production technology is successively wrapped
Include following steps: milling face, three planetary rollings, three stretchings, disk drawing, online annealing, after-combustion, packing, it is characterised in that: the milling
There are also prepurgings to drop phosphorus and horizontal casting two procedures in front, needs to increase forming internal threads process after the online annealing, described
Need to increase intermediate annealing process after after-combustion, increase after the packing process it is empty draw and aligning sawing process, then be packaged into
Library；The prepurging drop phosphorus, horizontal casting, forming internal threads, intermediate annealing, empty drawing and aligning sawing process are specific as follows:
1), phosphorus drops in prepurging: being continuously added into electrolytic copper plate in TP2 copper liquid, while stretching slab, dilutes reduction copper water with this
In P content；
2), horizontal casting: casting temperature a, is improved to 1180~1190 DEG C, improves the mobility of copper liquid；B, to graphite knot
The inlet opening of brilliant device is transformed, and the rotational flow of copper liquid, a side are realized by end-transfer to crystallizer outer wall in feed liquor hole site
Temperature and ingredient when face solidifies copper liquid is more uniform, on the other hand also refines casting blank crystal grains, makes the tissue of slab more evenly；
C, control primary cooling water pass in and out water temperature difference, by adjust primary cooling water flow make cooling water pass in and out water temperature difference control≤
15 DEG C, casting billet surface cold cut is uniform；D, the tensile speed of slab is reduced；
3), forming internal threads: selecting revolving speed for the high-speed motor of 19000~23000r/min, and drawing speed is controlled 23
~27m/min, rotation mould ratio (ratio of the two) control is between 800~900；
4), intermediate annealing: being heat-treated after after-combustion bundling using roller bottom type annealing furnace, and annealing temperature is 350 DEG C/
100min, nitrogen charging gas shielded copper pipe in furnace in annealing process；
5), empty to draw: directly by copper pipe through tube reducing closing mould stretching tube reducing, sizing reduction in the case where not being put into core print inside copper pipe
Generally 15~20%, the hardness of TU2 copper pipe rises between 95~105HV after empty draw；
6) it, aligns sawing: the TU2 copper pipe after empty draw being aligned, and scale sawing through straightening equipment, obtain the straight of fixed length
Pipe.
Preferably, it aligns in sawing step, defectoscope is also installed on straightening equipment, realizes online defects detection, to choose
Except the copper pipe for having surface defect.
The present invention by the production line of original TP2 copper pipe by increase " prepurging drop phosphorus ", " horizontal casting ", " internal screw thread at
The processing procedures such as type ", " intermediate annealing ", " sky draw ", " aligning sawing ", that is, can be quickly converted to produce the production line of TU2 copper pipe, for
For copper pipe factory, two kinds of products can be produced simultaneously on same production line, greatly save production cost, improve production effect
Rate.And the heat pipe material copper pipe of high-quality can also be obtained.
Detailed description of the invention
Fig. 1 is the production technological process of TU2 copper pipe.
Fig. 2 is the core print figure of TU2 riffled tube.
Fig. 3 is the shaping schematic view of riffled tube.
Specific embodiment
The present invention is described in further detail below with reference to embodiment, embodiments of the present invention are not limited thereto.
The type of TU2 copper pipe divides riffled tube and smooth tube, and after disk draws journey, internal screw thread main pipe is fast through online annealing
Produced on interior screw thread board after speed heat processing, then in after-combustion processing procedure bundling after-combustion, smooth copper then after disk drawing directly into
Row after-combustion production.
It is as shown in Figure 1 the production technological process of TU2 copper pipe of the present invention, for riffled tube, production technology
Include: prepurging drop phosphorus, horizontal casting, milling face, three planetary rollings, three stretchings, disk drawing, online annealing, forming internal threads, answer
Around, intermediate annealing, packing, it is empty draw, aligning sawing+carrying out flaw detection and packaging and warehousing.
For smooth copper, production technology then includes: prepurging drop phosphorus, horizontal casting, milling face, three planetary rollings, three
Stretching, disk drawing, after-combustion, intermediate annealing, packing, empty drawing, aligning sawing+carrying out flaw detection and packaging and warehousing.It is fewer than riffled tube
Online annealing and forming internal threads this two procedures.
The present embodiment is by taking riffled tube as an example.Compared with general TP2 copper tube production process, " prepurging drop in above-mentioned technique
Phosphorus ", " horizontal casting ", " forming internal threads ", " intermediate annealing " is empty draws ", " aligning sawing " these processing steps are different, have
Body is as follows:
1, phosphorus drops in prepurging: being continuously added into electrolytic copper plate in TP2 copper liquid, while stretching slab, dilutes reduction copper water with this
In P content.Under normal circumstances, when P content qualification, the content of other impurity elements is also all qualified.Prepurging drop phosphorus is production
The preparation of TU2 copper pipe, it is therefore an objective to which the technique for producing TP2 copper pipe (P content 0.015~0.040%) is converted into production TU2
The technique of copper pipe.
2, horizontal casting: casting temperature a, is improved to 1180~1190 DEG C, improves the mobility of copper liquid；B, to graphite crystallization
The inlet opening of device is transformed, and the rotational flow of copper liquid is realized by end-transfer to crystallizer outer wall in feed liquor hole site, on the one hand
Temperature and ingredient when solidifying copper liquid is more uniform, on the other hand also refines casting blank crystal grains, makes the tissue of slab more evenly；c,
It controls primary cooling water and passes in and out water temperature difference, the flow by adjusting primary cooling water makes cooling water pass in and out water temperature difference control≤15
DEG C, casting billet surface cold cut is uniform；D, the tensile speed of slab is reduced.
The quality of copper tube quality will affect the lumber recovery of later period finished product processing and the quality of copper pipe, and produce TU2 copper
The copper liquid of pipe and replaces other impurity without P, therefore TU2 slab is also easy to produce during stretching compared with the poor fluidity of TP2 copper liquid
Crack defect, gas residue and field trash take the above control measure i.e. and the quality of TU2 slab can be improved.
3, forming internal threads: being molded on screw thread board for TU2 riffled tube carries out, and major parameter is turning for high-speed motor
Speed and drawing copper tubes speed.The rotation speed of production TU2 riffled tube high-speed motor is generally 19000~23000r/min, draws
It pulls out speed and is generally 23~27m/min, rotation mould ratio (ratio of the two) control is between 800~900, TU2 under this technological parameter
The tooth form quality of riffled tube is relatively good.
The key parameter of TU2 riffled tube molding production is the mold and drawing and forming screwed pipe that screwed pipe produces and uses
Parameter.Screw thread core print and the parameters such as floating core head size, spinning ring size, steel ball number and size, main pipe specification are counted
It calculates, formulates reasonable technological parameter.Heat pipe has special addendum angle and spiral shell as a kind of material with efficient heat transfer characteristic
Swing angle requirement, tooth form are vertical bar type straight-tooth, i.e. 0~2 ° of low pitch angle, 5~15 ° of addendum angle.Because of the tooth form of TU2 riffled tube
Feature increases its molding resistance, and core print easily collapses tooth, therefore it is required that the intensity of screw thread core print is higher.
4, intermediate annealing: the annealing process of TU2 copper pipe is 350 DEG C/100min (lower than the annealing temperature of TP2 copper pipe), is moved back
Nitrogen charging gas shielded copper pipe in furnace during fire.TU2 copper pipe is heat-treated after after-combustion bundling using roller bottom type annealing furnace, purpose
It is to eliminate residual stress and processing hardening.The hardness range of TU2 copper pipe is slightly above TP2 between 55~65HV after intermediate annealing
Hardness after copper pipe annealing.
5, empty to draw: sky, which is drawn in the case that journey is not put into core print inside copper pipe, directly subtracts copper pipe through tube reducing closing mould stretching
Diameter, it is therefore an objective to which the plastic processing that the copper pipe after annealing is carried out to a time again improves the hardness of copper pipe, this is production TU2 copper pipe
Distinctive process flow.Sky draws sizing reduction to be generally 15~20%, after empty draw the hardness of TU2 copper pipe can rise to 95~
Between 105HV, this hardness range meets the technical requirements of client, and copper pipe stable mechanical property is good after empty drawing, will not
There is big performance inconsistency.
6, align sawing: aligning sawing is to align the TU2 copper pipe after empty draw through straightening equipment, and scale sawing obtains
The straight tube of fixed length.Defectoscope is also installed on straightening equipment, realizes online defects detection, to choose the copper pipe for removing and having surface defect.
TU2 copper tube production process is a set of perfect process, wherein " prepurging drop phosphorus ", " horizontal casting ", " internal screw thread at
Type ", " intermediate annealing " is empty draws ", the processing procedures such as " aligning sawing " be the special process for producing TU2 copper pipe and being different from TP2 air-conditioner pipe, tool
There is itself unique technological parameter requirement, realizes that the heat pipe material pipe of batch produces in production using this set process flow, copper
Pipe quality is good.
The above is only present pre-ferred embodiments, is not intended to limit the scope of the present invention, therefore
Any subtle modifications, equivalent variations and modifications to the above embodiments according to the technical essence of the invention, still fall within
Protection scope of the present invention.
Claims (2)
1. a kind of heat pipe material pipe processing technique, mainly for the production of internal thread heat pipe material copper pipe, production technology successively includes
Following steps: milling face, three planetary rollings, three stretchings, disk drawing, online annealing, after-combustion, packing, it is characterised in that: the milling face
Preceding there are also prepurgings to drop phosphorus and horizontal casting two procedures, needs to increase forming internal threads process after the online annealing, described multiple
It needs to increase intermediate annealing process after, increases empty drawing and aligning sawing process after the packing process, then be packed in storage；
The prepurging drop phosphorus, horizontal casting, forming internal threads, intermediate annealing, empty drawing and aligning sawing process are specific as follows:
1), phosphorus drops in prepurging: being continuously added into electrolytic copper plate in TP2 copper liquid, while stretching slab, being diluted with this reduces in copper water
P content；
2), horizontal casting: casting temperature a, is improved to 1180~1190 DEG C, improves the mobility of copper liquid；B, to graphite crystallizer
Inlet opening be transformed, feed liquor hole site is realized the rotational flow of copper liquid, is on the one hand made by end-transfer to crystallizer outer wall
Temperature and ingredient when copper liquid solidifies is more uniform, on the other hand also refines casting blank crystal grains, makes the tissue of slab more evenly；C, it controls
Primary cooling water processed passes in and out water temperature difference, and the flow by adjusting primary cooling water makes cooling water pass in and out water temperature difference control≤15
DEG C, casting billet surface cold cut is uniform；D, the tensile speed of slab is reduced；
3), forming internal threads: selecting revolving speed for the high-speed motor of 19000~23000r/min, drawing speed control 23~
27m/min, rotation mould ratio (ratio of the two) control is between 800~900；
4), intermediate annealing: being heat-treated after after-combustion bundling using roller bottom type annealing furnace, and annealing temperature is 350 DEG C/
100min, nitrogen charging gas shielded copper pipe in furnace in annealing process；
5), empty to draw: directly by copper pipe through tube reducing closing mould stretching tube reducing in the case where not being put into core print inside copper pipe, sizing reduction is general
It is 15~20%, the hardness of TU2 copper pipe rises between 95~105HV after empty draw；
6) it, aligns sawing: the TU2 copper pipe after empty draw being aligned, and scale sawing through straightening equipment, obtain the straight tube of fixed length.
2. a kind of heat pipe material pipe processing technique according to claim 1, it is characterised in that: the aligning sawing step
In, it is also equipped with defectoscope on straightening equipment, realizes online defects detection, to choose the copper pipe for removing and having surface defect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811267879.0A CN109175283B (en) | 2018-10-29 | 2018-10-29 | Heat pipe material pipe processing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811267879.0A CN109175283B (en) | 2018-10-29 | 2018-10-29 | Heat pipe material pipe processing technology |
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| Publication Number | Publication Date |
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| CN109175283A true CN109175283A (en) | 2019-01-11 |
| CN109175283B CN109175283B (en) | 2020-05-01 |
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ID=64944148
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| CN201811267879.0A Active CN109175283B (en) | 2018-10-29 | 2018-10-29 | Heat pipe material pipe processing technology |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109813172A (en) * | 2019-03-18 | 2019-05-28 | 青岛登辉机械配件有限公司 | Inner screw thread copper pipe and its processing technology |
| CN110814069A (en) * | 2019-11-18 | 2020-02-21 | 龙口市龙蓬精密铜管有限公司 | Production method of semi-hard copper straight pipe and drawing die thereof |
| CN113578998A (en) * | 2021-07-21 | 2021-11-02 | 江西铜业集团有限公司 | Ultrathin-wall oxygen-free copper pipe and preparation method thereof |
| CN113634998A (en) * | 2021-08-26 | 2021-11-12 | 泰州驰骏智能设备有限公司 | Novel finned tube processing method without workpiece autorotation |
| CN115091153A (en) * | 2022-07-05 | 2022-09-23 | 珠海市斗门区宇博电子科技有限公司 | Manufacturing process of radiator |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109813172A (en) * | 2019-03-18 | 2019-05-28 | 青岛登辉机械配件有限公司 | Inner screw thread copper pipe and its processing technology |
| CN110814069A (en) * | 2019-11-18 | 2020-02-21 | 龙口市龙蓬精密铜管有限公司 | Production method of semi-hard copper straight pipe and drawing die thereof |
| CN113578998A (en) * | 2021-07-21 | 2021-11-02 | 江西铜业集团有限公司 | Ultrathin-wall oxygen-free copper pipe and preparation method thereof |
| CN113578998B (en) * | 2021-07-21 | 2024-02-02 | 江西铜业集团有限公司 | Ultrathin-wall oxygen-free copper pipe and preparation method thereof |
| CN113634998A (en) * | 2021-08-26 | 2021-11-12 | 泰州驰骏智能设备有限公司 | Novel finned tube processing method without workpiece autorotation |
| CN113634998B (en) * | 2021-08-26 | 2023-02-07 | 泰州驰骏智能设备有限公司 | Finned tube processing method without workpiece autorotation |
| CN115091153A (en) * | 2022-07-05 | 2022-09-23 | 珠海市斗门区宇博电子科技有限公司 | Manufacturing process of radiator |
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| CN109175283B (en) | 2020-05-01 |
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