CN1667137A - Well type bright annealing furnace and inside purging process thereof - Google Patents
Well type bright annealing furnace and inside purging process thereof Download PDFInfo
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- CN1667137A CN1667137A CN 200510033956 CN200510033956A CN1667137A CN 1667137 A CN1667137 A CN 1667137A CN 200510033956 CN200510033956 CN 200510033956 CN 200510033956 A CN200510033956 A CN 200510033956A CN 1667137 A CN1667137 A CN 1667137A
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- nitrogen
- flue
- annealing furnace
- well type
- vacuumize
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Abstract
This invention discloses a well type bright anneal furnace and its inside sweeping technique. Charging line and multiple package consisted by at least three concealed hinges is set on its furnace. Nitrogen with pressure 0.05~5MPa is added to copper tube when the copper tube is heated to 200~4000C, and vacuumize to furnace at the same time and nitrogen is filled, and then it is kept heating. Nitrogen is added through charging line to protect inner surface and blow away fume and dust in copper tube, so the goal of cleaning inner surface is reached, and the inner surface quality of copper tube is improved. its structure and manufacturing technique is simple, easy to operate.
Description
Technical field
The present invention relates to a kind of well type bright annealing furnace and inside purging process thereof.
Background technology
In the prior art, copper pipe draws through dish, is wound in bronze pan tube, and bright again vacuum annealing obtains the finished product copper pipe of certain tensile strength and unit elongation, cleaning light, goes into finished bin after the packing.Its annealing process flow process is: 1. bronze pan tube endoporus inflated with nitrogen; 2. shove charge; 3. vacuumize in the stove, mend nitrogen; 4. heating; 5. vacuumize, mend nitrogen; 6. insulation; 7. vacuumize, mend nitrogen; 8. cooling; 9. vacuumize, mend nitrogen; 10. the packing of coming out of the stove.On the annealing furnace that matches with this technical process, be connected with one mutually with flue and vacuumize interface, in flue, vacuumize and additional nitrogen by this interface.Through the bronze pan tube appearance light that the vacuum protection annealing process is handled, not oxidized and do not turn black and be guaranteed, but copper pipe Nei Biaochang turns black, residue weight exceeds standard in the oxidized and hole, influences the copper pipe quality.
Summary of the invention
The objective of the invention is to overcome above-mentioned defective, a kind of well type bright annealing furnace and inside purging process thereof are provided.
In order to achieve the above object, annealing furnace of the present invention comprises flue, is arranged on bin in the flue, is arranged on the interface that vacuumizes on bell on the flue and the bell; Also be provided with the qi of chong channel ascending adversely pipeline assembly on the flue.
Qi of chong channel ascending adversely pipeline assembly of the present invention comprises qi of chong channel ascending adversely pipeline and many set of joints of being made up of three joints at least; First joint is arranged on the qi of chong channel ascending adversely pipeline; Second joint is connected with first joint by flexible pipe; The 3rd joint is rapid-acting coupling, is connected with second joint.
Inside purging process of the present invention, its flow process comprises: bronze pan tube endoporus inflated with nitrogen; Shove charge; Vacuumize in the stove, mend nitrogen; Heating; Vacuumize, mend nitrogen; Insulation; Vacuumize, mend nitrogen; Cooling; Vacuumize, mend nitrogen; The packing of coming out of the stove; When bronze pan tube was heated to 200-400 ℃, charged pressure was the nitrogen of 0.05-5Mpa in copper pipe, and vacuumized in flue simultaneously, mended nitrogen, continued heating then.
Owing to adopted such scheme; the present invention is on the basis of former technology; be blown into the nitrogen of 0.05-5Mpa pressure to the copper pipe endoporus by the qi of chong channel ascending adversely pipeline assembly; to show and to blow away the flue dust in the copper pipe in protecting; reach the purpose of table in the cleaning; the copper pipe inner surface quality is improved, and its annealing furnace structure and production technique are simple, easy handling.
Description of drawings
Fig. 1 is the structure iron of annealing furnace of the present invention;
Fig. 2 is an A place enlarged view among Fig. 1;
Fig. 3 is a process flow sheet of the present invention.
Specific embodiment
Describe the specific embodiment of the present invention in detail below in conjunction with accompanying drawing.
As shown in fig. 1, annealing furnace of the present invention has flue 2, is provided with bin 1 in the flue 2, can discharge many rows' bronze pan tube 8 on the bin 1.Flue 2 tops are provided with bell 3, vacuumize interface 4 on the bell 3, vacuumize and pour nitrogen by this interface to flue in the course of processing.Except that this interface, also be provided with the qi of chong channel ascending adversely pipeline assembly on the flue 2, comprise qi of chong channel ascending adversely pipeline 5 and many set of joints.As shown in Figure 2, every set of joints has at least three joints to form, and first joint 6 is arranged on the qi of chong channel ascending adversely pipeline 5; Second joint 10 is connected with first joint 6 by flexible pipe 12; The 3rd joint 9 is rapid-acting coupling, and an end is fixedlyed connected with second joint 10, and the other end can be connected with bronze pan tube 8, and the internal diameter of this end can be regulated, and the internal diameter according to bronze pan tube during use is regulated in advance.Flexible pipe 12 then can be according to the different positions of bronze pan tube 8 ports, it is super around, convenient connection to carry out pulling-down.
As shown in Figure 3, technical process of the present invention is: 1. at first to bronze pan tube endoporus inflated with nitrogen; 2. shove charge: bronze pan tube is hung onto on the bin, and the port of each rosette copper pipe is connected with rapid-acting coupling, and bin is filled back integral body and hung in the flue, is communicated with the qi of chong channel ascending adversely pipeline, the lid bell; 3. vacuumize in stove by vacuumizing interface, and in flue, mend nitrogen according to a conventional method; 4. flue is heated; 5. when temperature reached 200-400 ℃, charged pressure was the nitrogen of 0.05-5Mpa in copper pipe, and vacuumized in flue simultaneously, mended nitrogen, continued heating then.In this step, the preferred value of the temperature of inflated with nitrogen is 250-350 ℃ in copper pipe, as 260 ℃, 280 ℃, 300 ℃, 320 ℃, 340 ℃, 360 ℃ etc., and the preferable range of nitrogen gas pressure is 0.05-1Mpa, as 0.1Mpa, 0.2Mpa, 0.3Mpa, 0.5Mpa, 0.6Mpa etc.; 6. once more flue is vacuumized, mend nitrogen; 7. when the temperature of copper pipe reaches preset value, keep constant temperature; 8. flue is vacuumized, mend nitrogen; 9. flue is stopped heating, make it to cool off gradually; 9. for the last time flue is vacuumized, mend nitrogen; 10. come out of the stove: open bell, bin is hung out outside the stove, unload the qi of chong channel ascending adversely pipe joint, the packing warehouse-in.
Claims (5)
1. well type bright annealing furnace comprises flue, is arranged on bin in the flue, is arranged on the interface that vacuumizes on bell on the flue and the bell; It is characterized in that: also be provided with the qi of chong channel ascending adversely pipeline assembly on the described flue.
2. a kind of well type bright annealing furnace according to claim 1 is characterized in that: described qi of chong channel ascending adversely pipeline assembly comprises qi of chong channel ascending adversely pipeline and many set of joints.
3. a kind of well type bright annealing furnace according to claim 2 is characterized in that: described every set of joints comprises at least three joints; Described first joint is arranged on the qi of chong channel ascending adversely pipeline; Described second joint is connected with first joint by flexible pipe; Described the 3rd joint is rapid-acting coupling, is connected with second joint.
4. the inside purging process of a well type bright annealing furnace, its flow process comprises bronze pan tube endoporus inflated with nitrogen; Shove charge; Vacuumize in the stove, mend nitrogen; Heating; Vacuumize, mend nitrogen; Insulation; Vacuumize, mend nitrogen; Cooling; Vacuumize, mend nitrogen; The packing of coming out of the stove; It is characterized in that: when bronze pan tube was heated to 200-400 ℃, charged pressure was the nitrogen of 0.05-5Mpa in copper pipe, and vacuumized in flue simultaneously, mended nitrogen, continued heating then.
5. the inside purging process of a kind of well type bright annealing furnace according to claim 4, it is characterized in that: the described preferable range that pours nitrogen in copper pipe is 0.1-1Mpa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510033956 CN1667137A (en) | 2005-04-05 | 2005-04-05 | Well type bright annealing furnace and inside purging process thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510033956 CN1667137A (en) | 2005-04-05 | 2005-04-05 | Well type bright annealing furnace and inside purging process thereof |
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| CN1667137A true CN1667137A (en) | 2005-09-14 |
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| CN 200510033956 Pending CN1667137A (en) | 2005-04-05 | 2005-04-05 | Well type bright annealing furnace and inside purging process thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102234713A (en) * | 2011-06-11 | 2011-11-09 | 湘潭高耐合金制造有限公司 | Three-section three-stage-controlled enclosed inner-circulated gas-protected copper wire vacuum quick-cooling annealing furnace |
| CN108642418A (en) * | 2018-04-04 | 2018-10-12 | 山东亨圆铜业有限公司 | Purging automatic detection and control system and method in the annealing of well annealing furnace copper pipe |
| CN109536680A (en) * | 2018-12-27 | 2019-03-29 | 江西耐乐铜业有限公司 | A kind of copper pipe annealing system |
| CN109943701A (en) * | 2019-05-06 | 2019-06-28 | 山东理工大学 | Belching well formula Brass Pipe Annealing Stove Control nitrogen waste heat efficient utilization device |
| CN113231486A (en) * | 2021-02-19 | 2021-08-10 | 青岛宏泰铜业有限公司 | Manufacturing process of high-precision welding-free special copper coil |
-
2005
- 2005-04-05 CN CN 200510033956 patent/CN1667137A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102234713A (en) * | 2011-06-11 | 2011-11-09 | 湘潭高耐合金制造有限公司 | Three-section three-stage-controlled enclosed inner-circulated gas-protected copper wire vacuum quick-cooling annealing furnace |
| CN108642418A (en) * | 2018-04-04 | 2018-10-12 | 山东亨圆铜业有限公司 | Purging automatic detection and control system and method in the annealing of well annealing furnace copper pipe |
| CN109536680A (en) * | 2018-12-27 | 2019-03-29 | 江西耐乐铜业有限公司 | A kind of copper pipe annealing system |
| CN109943701A (en) * | 2019-05-06 | 2019-06-28 | 山东理工大学 | Belching well formula Brass Pipe Annealing Stove Control nitrogen waste heat efficient utilization device |
| CN113231486A (en) * | 2021-02-19 | 2021-08-10 | 青岛宏泰铜业有限公司 | Manufacturing process of high-precision welding-free special copper coil |
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