CN1312140A - Manufacture of specially shaped copper tube for computer to dissipate heat - Google Patents
Manufacture of specially shaped copper tube for computer to dissipate heat Download PDFInfo
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- CN1312140A CN1312140A CN 01105882 CN01105882A CN1312140A CN 1312140 A CN1312140 A CN 1312140A CN 01105882 CN01105882 CN 01105882 CN 01105882 A CN01105882 A CN 01105882A CN 1312140 A CN1312140 A CN 1312140A
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Abstract
The production method of special copper tube for heat radiation of base plate of computer CPU module includes the following steps in turn: preparing mother tube, annealing, forming stretching of internal groove, annealing treatment of formed tube blank and stretching of finished tube product, and the uniformly-distributed straight grooves are formed on the internal wall of said finished product tube. Said invention is simple in production process, low in production cost, small in thermal resistance and good in thermal conductive effect.
Description
The present invention relates to a kind of production method of heat transmission copper pipe.Specifically, be the manufacture method of the special-shaped copper pipe of computer CPU module base plate heat transmission.
At present, being used for the copper pipe of computer CPU heat radiation, mostly is combined type, promptly at the copper mesh of copper tube inner lining to be made into superfine copper wire of minor diameter, to improve its heat transfer efficiency.Though this copper pipe also can be used for the heat radiation of computer CPU, because when making the copper mesh of liner, need to draw earlier diameter and be the thin copper wire about 0.1mm, be woven into 400 purpose silk screens, again this silk screen is cut into piece, in the copper pipe of packing into, and will fits tightly with the copper pipe inwall.Therefore, operation is many, complex process, production cost height.Again owing to be combined type, be difficult to good the contact between copper mesh and copper pipe inwall, make the thermal resistance increasing of this copper pipe, heat-conducting effect is bad.
The object of the present invention is to provide a kind of manufacture method of specially shaped copper tube for computer to dissipate heat.This method operation is few, technology is simple, production cost is low, with little, the good heat conduction effect of specially shaped copper tube for computer to dissipate heat thermal resistance of this method production.
Above-mentioned purpose of the present invention is realized by following technical solution:
The manufacture method of specially shaped copper tube for computer to dissipate heat of the present invention may further comprise the steps successively:
(1) preparation of female pipe
The content of choosing copper is 99.90～99.97% ingot casting, behind eddy-current heating, extrudes into pipe, this pipe after water seal cooling,
Carry out cogging again on the double-roller type pipe mill, being rolled into external diameter is that 30～50mm, wall thickness are the pipe of 1.8～2.5 mm; Then,
With plate drawing machine pipe is drawn into female pipe, and should mother's pipe level be wound in dish;
Wherein: in the ingot casting content of impurity such as phosphorus, bismuth, iron and lead be respectively 0.010～0.028% ,≤0.001% ,≤0.008% and≤0.003%.
(2) annealing of female pipe
It is in 460～520 ℃ the annealing furnace that female pipe of one-tenth dish is inserted temperature, and when constantly charging into protective gas in annealing furnace, constant temperature kept 40～50 minutes, and it is annealed in protective atmosphere;
(3) moulding of internal channel stretches
With continuous blanking formula spinner block tenside equipment female pipe is stretched, make its inwall form some longitudinal grooves.Its drawing process is:
On support plate, be disposed with the drawing-die seat that moves about, spinning head, high-frequency electric machines and sizing drawing-die seat, the front of sizing drawing-die seat is provided with plate drawing machine, and clamp is arranged on the plate drawing machine.The output shaft of high-frequency electric machines and spinning head Joint drive the spinning head rotation by high-frequency electric machines; Lasso is arranged on the spinning head, and this lasso is enclosed within and is drawn on female pipe, the interior circle of lasso and drawn between the cylindrical of female pipe steel ball is arranged.Drawing in female pipe corresponding to the quilt at this steel ball place has forming core head.Be separately installed with move about drawing-die and sizing drawing-die in the drawing-die of moving about seat and the sizing drawing-die seat, after mother managed lasso, high-frequency electric machines and the sizing drawing-die of passing successively in the drawing-die of moving about, the spinning head, its front end was clamped by the clamp on the plate drawing machine.Draw in female pipe corresponding to the quilt at the drawing-die place of moving about floating core head is housed, be connected by pull bar between this floating core head and forming core head.
Before the stretching, lubricating oil on the front end inner surface that is drawn female pipe is annotated will be put into by the member that forming core head, pull bar and floating core head are formed and be drawn female pipe earlier; Then, draw on female pipe at quilt and dig a pit, hole, etc. corresponding to the floating core head back-end location; At last, will be drawn the head of female pipe to press carefully, can be stretched;
By the stretching of moving about of move about drawing-die and floating core head, the spinning of lasso, steel ball and forming core head stretches, and the stretching of the sizing of sizing drawing-die, one-tenth is coiled female pipe be drawn into the shaping pipe that inwall has straight flute;
(4) annealing in process of shaping pipe
After inwall being had the shaping pipe after-combustion of straight flute, insert temperature and be in 380～500 ℃ the annealing furnace, in the protective atmosphere that nitrogen, hydrogen mix, be incubated 45～60 minutes, carry out annealing in process;
(5) stretching of production tube
With plate drawing machine or vertical pulling machine the shaping pipe of annealed processing is proceeded to stretch,, make specially shaped copper tube for computer to dissipate heat of the present invention to dwindle its external diameter and internal channel width.
Adopt the manufacture method of specially shaped copper tube for computer to dissipate heat of the present invention, can make to form uniform straight flute on the copper pipe inwall, do not need the liner silk screen, can realize heat radiation.Not only operation is few, technology is simple, also can reduce production costs.Because it is a monoblock type, make thermal resistance descend again, the capacity of heat transmission strengthens, good heat conduction effect.
Below in conjunction with drawings and Examples the present invention is described in further detail:
Fig. 1 is a moulding stretching schematic diagram;
The stretching of moving about, spinning and sizing drawing process schematic diagram when Fig. 2 is the moulding stretching;
Fig. 3 is the schematic cross-section of tubing after moulding stretches;
Fig. 4 is the A point enlarged drawing of Fig. 3.
The manufacture method of specially shaped copper tube for computer to dissipate heat of the present invention may further comprise the steps:
1. the preparation of female pipe
Ingot casting is put into electric induction furnace, be heated to 800～850 ℃, extrude into pipe.This pipe carries out cogging with the Pilger double-roller cold pilger mill again after the water seal cooling, being rolled into external diameter is that 43mm, wall thickness are the pipe of 2.2mm.
Then, inject QD1 lubricating oil from the front end of pipe in pipe, with plate drawing machine pipe being drawn into external diameter is that 9.52mm, wall thickness are mother's pipe of 0.41mm.During stretching, ceaselessly to the outer surface spray QD2 of pipe lubricating oil.Subsequently, should mother's pipe level be wound in dish.
Wherein: the Main Ingredients and Appearance copper of ingot casting and the content of phosphorus are respectively 99.90～99.97% and 0.010～0.028%, and impurity element bismuth, iron and plumbous content is respectively＜0.001%,＜0.008% and＜0.003%.
2. the annealing of female pipe
One-tenth is coiled female pipe put into annealing furnace, insulation is 45 minutes when furnace temperature is 500 ℃.And constantly in annealing furnace, charge into protective gas.This protective gas is nitrogen, hydrogen gaseous mixture.
3. the moulding of internal channel stretches
As shown in Figure 1 and Figure 2, be that 84 o'clock continuous blanking formula spinner block tenside equipment carries out moulding to female pipe and stretches with drum diameter, make its inwall form 50 straight flute.Its method is:
On support plate 10, the drawing-die seat 1 that moves about, spinning head 3, high-frequency electric machines 5 and sizing drawing-die seat 6 are installed successively, the output shaft of high-frequency electric machines 5 and spinning head 3 Joints drive spinning head 3 rotations by high-frequency electric machines 5.One lasso 4 is installed in the spinning head 3, and this lasso is enclosed within and is drawn on female pipe.The interior circle of lasso 4 and drawn between the cylindrical of female pipe a plurality of steel balls 13 are installed.Drawing corresponding to the quilt at steel ball 13 places has a forming core head 14 in female pipe, 50 straight flute that are evenly distributed are arranged on the cylindrical of this forming core head.The degree of depth of straight flute is 0.18mm, and width is 0.38mm.Be separately installed with move about drawing-die 2 and sizing drawing-die 7 in the drawing-die of moving about seat 1 and the sizing drawing-die seat 6.Draw in female pipe corresponding to the quilt at drawing-die 2 places of moving about a floating core head 11 is installed, 14 of this floating core head and forming core heads are connected by pull bar 12.After mother managed lasso 4, high-frequency electric machines 5 and the sizing drawing-die 7 of passing successively in the drawing-die 2 of moving about, the spinning head 3, its front end was clamped by the clamp on the plate drawing machine 8.Wherein, plate drawing machine 8 is arranged on the front side of sizing drawing-die seat 6, by its rotation of driven by motor, installs one below it and is subjected to charging tray 9, and promptly the coil pipe after level is twined drops on this automatically and is subjected on the charging tray.
Before the stretching, drawn QD-998 lubricating oil on the inner surface notes of female pipe earlier.To put into by the member that forming core head 14, pull bar 12 and floating core head 11 are formed again and be drawn female pipe.Then, draw on female pipe at quilt and to dig a pit, hole, etc., and the head that is drawn female pipe is pressed thin, can stretch corresponding to floating core head 11 rear end.During stretching, ceaselessly draw the outer surface spray QD-998 lubricating oil of female pipe to quilt.
By the stretching of moving about of move about drawing-die 2 and floating core head 11, the spinning of lasso 4, steel ball 13 and forming core head 14, and the stretching of the sizing of sizing drawing-die 7 are drawn into the moulding pipe that inwall has straight flute with female pipe.As shown in Figure 3, Figure 4, the tube outer diameter of moving about after stretching is 8.36mm, and wall thickness is 0.41mm; Outer diameter D=the 8.05mm of tubing behind the spinning, gash depth H-0.16mm, groove width B=0.38mm, groove base thickness T=0.30mm, ditch apex angle=36 °; After sizing stretched, the external diameter of tubing was 6.8mm.
4. the annealing in process of moulding pipe
After inwall being had the moulding pipe after-combustion of straight flute, put into annealing furnace, be incubated 45 minutes down at 460 ℃.During annealing, constantly be blown into nitrogen, hydrogen mixed gas, be full of nitrogen protection in the stove to internal surface of pipe.
5. on plate drawing machine or vertical pulling machine, it is 5mm that the shaping pipe of annealed processing is proceeded to be stretched to external diameter.Without forming core head 14, promptly carry out sky and draw in this step.Thereby, make specially shaped copper tube for computer to dissipate heat of the present invention.
Forming core head 14 in the foregoing description is carved with the straight flute core print of 50 grooves for outer surface.
Claims (3)
1. the manufacture method of specially shaped copper tube for computer to dissipate heat is characterized in that may further comprise the steps successively:
(1) preparation of female pipe
The content of choosing copper is 99.90～99.97% ingot casting, behind eddy-current heating, extrudes into pipe, this pipe after water seal cooling,
Carry out cogging again on the double-roller type pipe mill, being rolled into external diameter is that 30～50mm, wall thickness are the pipe of 1.8～2.5mm; Then,
With plate drawing machine pipe is drawn into female pipe, and should mother's pipe level be wound in dish;
Wherein: phosphorus in the ingot casting, bismuth, iron and plumbous content is respectively 0.010～0.028% ,≤0.001% ,≤0.008% and≤0.003%.
(2) annealing of female pipe
It is in 460～520 ℃ the annealing furnace that female pipe of one-tenth dish is inserted temperature, and when constantly charging into protective gas in annealing furnace, constant temperature kept 40～50 minutes, and it is annealed in protective atmosphere;
(3) moulding of internal channel stretches
With continuous blanking formula spinner block tenside equipment female pipe is stretched, make its inwall form some longitudinal grooves; Its drawing process is:
On support plate (10), be disposed with the drawing-die seat (1) that moves about, spinning head (3), high-frequency electric machines (5) and sizing drawing-die seat (6), the front of sizing drawing-die seat (6) is provided with plate drawing machine (8), and plate drawing machine has clamp on (8); The output shaft of high-frequency electric machines (5) and spinning head (3) Joint drive spinning head (3) rotation by high-frequency electric machines (5); Lasso (4) is arranged on the spinning head (3), and this lasso is enclosed within and is drawn on female pipe, the interior circle of lasso (4) and drawn between the cylindrical of female pipe steel ball (13) is arranged; Drawing corresponding to the quilt at this steel ball place has forming core head (14) in female pipe; Be separately installed with drawing-die of moving about (2) and sizing drawing-die (7) in the drawing-die of moving about seat (1) and the sizing drawing-die seat (6), after mother managed lasso (4), high-frequency electric machines (5) and the sizing drawing-die (7) of passing successively in the drawing-die of moving about (2), the spinning head (3), its front end was clamped by the clamp on the plate drawing machine (8); The quilt of locating corresponding to the drawing-die of moving about (2) draws floating core head (11) is housed in female pipe, is connected by pull bar (12) between this floating core head and forming core head (14);
Before the stretching, lubricating oil on the front end inner surface that is drawn female pipe is annotated will be put into by the member that straight flute core print (14), pull bar (12) and floating core head (11) are formed and be drawn female pipe earlier; Then, draw on female pipe at quilt and dig a pit, hole, etc. corresponding to floating core head (11) back-end location; At last, will be drawn the head of female pipe to press carefully, can be stretched;
By the stretching of moving about of drawing-die of moving about (2) and floating core head (11), the spinning of lasso (4), steel ball (13) and forming core head (14) stretches, and the stretching of the sizing of sizing drawing-die (7), one-tenth is coiled female pipe be drawn into the shaping pipe that inwall has straight flute;
(4) annealing in process of shaping pipe
After inwall being had the shaping pipe after-combustion of straight flute, insert temperature and be in 380～500 ℃ the annealing furnace, be incubated 45～60 minutes, carry out annealing in process;
(5) stretching of production tube
With plate drawing machine or vertical pulling machine the shaping pipe of annealed processing is carried out sky and draw,, make specially shaped copper tube for computer to dissipate heat of the present invention to dwindle its external diameter and internal channel width.
2. manufacture method according to claim 1 is characterized in that said forming core head (14) is the cylindrical core print that outer surface is carved with 40～65 straight flute.
3. manufacture method according to claim 1 is characterized in that said protective gas is nitrogen, hydrogen gaseous mixture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB01105882XA CN1141193C (en) | 2001-04-06 | 2001-04-06 | Manufacture of specially shaped copper tube for computer to dissipate heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB01105882XA CN1141193C (en) | 2001-04-06 | 2001-04-06 | Manufacture of specially shaped copper tube for computer to dissipate heat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1312140A true CN1312140A (en) | 2001-09-12 |
| CN1141193C CN1141193C (en) | 2004-03-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB01105882XA Expired - Lifetime CN1141193C (en) | 2001-04-06 | 2001-04-06 | Manufacture of specially shaped copper tube for computer to dissipate heat |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101817025A (en) * | 2010-04-12 | 2010-09-01 | 浙江佳鑫铜业有限公司 | Method for preparing internal groove heat-conducting copper pipe |
| CN102410770A (en) * | 2010-09-25 | 2012-04-11 | 浙江宏天铜业有限公司 | Internal thread type high-tooth fin copper pipe and production technology thereof |
| CN102500674A (en) * | 2011-10-28 | 2012-06-20 | 昆山德泰新材料科技有限公司 | Method for manufacturing special-shaped copper pipes for heat dissipation of baseboards of computer CPU (central processing unit) modules |
| CN102513472A (en) * | 2012-01-09 | 2012-06-27 | 肇庆市骏驰科技有限公司 | Rotary reducing machining device for engine oil delivery pipe |
| CN102716936A (en) * | 2012-05-03 | 2012-10-10 | 张起成 | Method for producing internal screw thread aluminum pipe for heat exchanging |
| CN103097047A (en) * | 2011-01-14 | 2013-05-08 | 古河电气工业株式会社 | Internally grooved pipe, manufacturing method therefor, and manufacturing device therefor |
| CN103861887A (en) * | 2014-03-20 | 2014-06-18 | 北京科技大学 | Preparation method of high-performance copper/titanium bimetal capillary tube |
| CN104028579A (en) * | 2014-06-11 | 2014-09-10 | 昆山德泰新材料科技有限公司 | Method for producing high-cleanliness metal pipe for solar gravity assisted heat pipe |
| CN104070656A (en) * | 2014-05-21 | 2014-10-01 | 宁波名德建材有限公司 | Manufacture method of hot-melt type red copper composite tube |
| CN104097038A (en) * | 2013-04-03 | 2014-10-15 | 昭和电工株式会社 | Method for manufacturing heat pipe type heat exchanging device |
| CN108555046A (en) * | 2018-05-16 | 2018-09-21 | 宁波金田铜管有限公司 | The ultra dense degree internal thread straight trough copper pipe of one kind and its process mould |
| CN109226328A (en) * | 2018-11-23 | 2019-01-18 | 绍兴上虞正达管业有限公司 | A kind of red copper hose processing technology |
| CN110899350A (en) * | 2019-12-24 | 2020-03-24 | 新乡市金龙精密铜管制造有限公司 | Production process for online production of hydrophilic copper straight pipe |
| CN111774433A (en) * | 2020-07-07 | 2020-10-16 | 济南东方结晶器有限公司 | Mold water-opening groove process for crystallizer copper pipe |
| CN112474806A (en) * | 2020-12-21 | 2021-03-12 | 宁波金田铜管有限公司 | Preparation method of internal thread special-shaped copper pipe |
| CN112696956A (en) * | 2021-01-11 | 2021-04-23 | 广东龙丰精密铜管有限公司 | Groove heat pipe and production method thereof |
| CN112696951A (en) * | 2021-01-11 | 2021-04-23 | 广东龙丰精密铜管有限公司 | Copper pipe with small-outer-diameter grooves and production method thereof |
-
2001
- 2001-04-06 CN CNB01105882XA patent/CN1141193C/en not_active Expired - Lifetime
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101817025A (en) * | 2010-04-12 | 2010-09-01 | 浙江佳鑫铜业有限公司 | Method for preparing internal groove heat-conducting copper pipe |
| CN102410770A (en) * | 2010-09-25 | 2012-04-11 | 浙江宏天铜业有限公司 | Internal thread type high-tooth fin copper pipe and production technology thereof |
| CN103097047A (en) * | 2011-01-14 | 2013-05-08 | 古河电气工业株式会社 | Internally grooved pipe, manufacturing method therefor, and manufacturing device therefor |
| CN102500674A (en) * | 2011-10-28 | 2012-06-20 | 昆山德泰新材料科技有限公司 | Method for manufacturing special-shaped copper pipes for heat dissipation of baseboards of computer CPU (central processing unit) modules |
| CN102513472A (en) * | 2012-01-09 | 2012-06-27 | 肇庆市骏驰科技有限公司 | Rotary reducing machining device for engine oil delivery pipe |
| CN102716936A (en) * | 2012-05-03 | 2012-10-10 | 张起成 | Method for producing internal screw thread aluminum pipe for heat exchanging |
| CN104097038A (en) * | 2013-04-03 | 2014-10-15 | 昭和电工株式会社 | Method for manufacturing heat pipe type heat exchanging device |
| CN103861887A (en) * | 2014-03-20 | 2014-06-18 | 北京科技大学 | Preparation method of high-performance copper/titanium bimetal capillary tube |
| CN104070656A (en) * | 2014-05-21 | 2014-10-01 | 宁波名德建材有限公司 | Manufacture method of hot-melt type red copper composite tube |
| CN104028579A (en) * | 2014-06-11 | 2014-09-10 | 昆山德泰新材料科技有限公司 | Method for producing high-cleanliness metal pipe for solar gravity assisted heat pipe |
| CN108555046A (en) * | 2018-05-16 | 2018-09-21 | 宁波金田铜管有限公司 | The ultra dense degree internal thread straight trough copper pipe of one kind and its process mould |
| CN109226328A (en) * | 2018-11-23 | 2019-01-18 | 绍兴上虞正达管业有限公司 | A kind of red copper hose processing technology |
| CN110899350A (en) * | 2019-12-24 | 2020-03-24 | 新乡市金龙精密铜管制造有限公司 | Production process for online production of hydrophilic copper straight pipe |
| CN110899350B (en) * | 2019-12-24 | 2021-09-14 | 新乡市金龙精密铜管制造有限公司 | Production process for online production of hydrophilic copper straight pipe |
| CN111774433A (en) * | 2020-07-07 | 2020-10-16 | 济南东方结晶器有限公司 | Mold water-opening groove process for crystallizer copper pipe |
| CN112474806A (en) * | 2020-12-21 | 2021-03-12 | 宁波金田铜管有限公司 | Preparation method of internal thread special-shaped copper pipe |
| CN112474806B (en) * | 2020-12-21 | 2022-09-13 | 宁波金田铜管有限公司 | Preparation method of internal thread special-shaped copper pipe |
| CN112696956A (en) * | 2021-01-11 | 2021-04-23 | 广东龙丰精密铜管有限公司 | Groove heat pipe and production method thereof |
| CN112696951A (en) * | 2021-01-11 | 2021-04-23 | 广东龙丰精密铜管有限公司 | Copper pipe with small-outer-diameter grooves and production method thereof |
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| Publication number | Publication date |
|---|---|
| CN1141193C (en) | 2004-03-10 |
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