CN104451105A - Annealing method of copper coil pipe - Google Patents
Annealing method of copper coil pipe Download PDFInfo
- Publication number
- CN104451105A CN104451105A CN201410773845.4A CN201410773845A CN104451105A CN 104451105 A CN104451105 A CN 104451105A CN 201410773845 A CN201410773845 A CN 201410773845A CN 104451105 A CN104451105 A CN 104451105A
- Authority
- CN
- China
- Prior art keywords
- annealing
- coil pipe
- copper coil
- pan tube
- bronze pan
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
The invention discloses an annealing method of a copper coil pipe and belongs to the field of a heat treatment process of metal materials. The annealing method comprises the following steps of carrying out ultrasonic cleaning on the copper coil pipe; injecting nitrogen into the cleaned copper coil pipe and sealing; putting the cleaned copper coil pipe inside an annealing furnace, pumping air in the annealing furnace to form a negative pressure and then filling protective gas carbon dioxide to form a positive pressure; heating under pressure, and carrying out heat preservation and pressure preservation; placing the copper coil pipe in a cooling tank and spraying a cooling water containing a copper antioxidant for rapid cooling; placing the copper coil pipe in the annealing furnace, vacuumizing and then heating again and carrying out heat preservation and pressure preservation; taking the copper coil pipe out and naturally cooling and reducing the pressure to room temperature and normal pressure. According to the annealing method, carbon dioxide as an inert gas is used for protecting the copper coil pipe during the annealing process, which is beneficial to the fact that the appearance of the surface of the copper coil pipe subjected to annealing treatment is more bright and beautiful.
Description
Technical field
The present invention relates to a kind of metal tube method for annealing, specifically a kind of bronze pan tube method for annealing, belong to the thermal treatment process field of metallic substance.
Background technology
Annealing is a kind of metal heating processing technology, refers to and metal is slowly heated to certain temperature, keeps enough time, then cools with Reasonable Speed.Object reduces hardness, improves machinability; Eliminate unrelieved stress, stable dimensions, reduce distortion and be inclined to crackle; Crystal grain thinning, adjustment tissue, eliminates tissue defects.
The bronze pan tube surface that in prior art, bronze pan tube annealing method obtains is intensely dark and comparatively dirty, and antioxidant property, mechanical property are relatively poor, have impact on the normal use of bronze pan tube.
Summary of the invention
Technical problem to be solved by this invention is to overcome prior art defect, provides one can effectively improve bronze pan tube outward appearance, improves the bronze pan tube method for annealing of its antioxidant property, mechanical property.
In order to solve the problems of the technologies described above, bronze pan tube method for annealing provided by the present invention, comprises the following steps:
1), bronze pan tube is carried out ultrasonic cleaning;
2), in the bronze pan tube after cleaning inject the nitrogen of 0.25-0.4MPa, two seals;
3), by bronze pan tube put into annealing furnace, pump air in annealing furnace and be filled with protective gas carbonic acid gas again after forming negative pressure, form malleation;
4), under stress heat, after making annealing in-furnace temperature reach 300 DEG C-400 DEG C in 15-25min, and heat-insulation pressure keeping 2h-3h;
5), stop heating and release, bronze pan tube is inserted the water coolant of spray containing copper antioxidant in cooling tank and be quickly cooled to 20 DEG C-35 DEG C;
6), insert annealing furnace and vacuumize and again heat, after making annealing in-furnace temperature reach 220 DEG C-260 DEG C in 10-15min, close heating and keep pressurize 1.5-3h;
7), take out bronze pan tube, Temperature fall is depressurized to room temperature normal pressure.
In the present invention, in described step 4), water coolant is distilled water; The concentration of copper antioxidant is 6%-8%.
Bronze pan tube method for annealing carbonic acid gas of the present invention is protected bronze pan tube in anneal as rare gas element, thus surface is comparatively bright attractive in appearance to be after an annealing treatment conducive to making bronze pan tube; Meanwhile, annealing process of the present invention is simple, and the bronze pan tube resistance of oxidation after annealing is strong, and mechanical property is good, long service life.
Embodiment
Below in conjunction with specific embodiment, the present invention is described in further detail.
embodiment 1
Annealing process comprises the following steps:
1), bronze pan tube is carried out ultrasonic cleaning;
2), in the bronze pan tube after cleaning inject the nitrogen of 0.3MPa, two seals;
3), by bronze pan tube put into annealing furnace, pump air in annealing furnace and be filled with protective gas carbonic acid gas again after forming negative pressure, form malleation;
4), under stress heat, after making annealing in-furnace temperature reach 350 DEG C in 20min, and heat-insulation pressure keeping 2.5h;
5), stop heating and release, bronze pan tube to be inserted in cooling tank spray containing concentration be the distilled water of the copper antioxidant of 6% as water coolant, be quickly cooled to 28 DEG C;
6), insert annealing furnace and vacuumize and again heat, after making annealing in-furnace temperature reach 240 DEG C in 11min, close heating and keep pressurize 1.5h;
7), take out bronze pan tube, Temperature fall is depressurized to room temperature normal pressure.
embodiment 2
Annealing process comprises the following steps:
1), bronze pan tube is carried out ultrasonic cleaning;
2), in the bronze pan tube after cleaning inject the nitrogen of 0.4MPa, two seals;
3), by bronze pan tube put into annealing furnace, pump air in annealing furnace and be filled with protective gas carbonic acid gas again after forming negative pressure, form malleation;
4), under stress heat, after making annealing in-furnace temperature reach 400 DEG C in 15min, and heat-insulation pressure keeping 2h;
5), stop heating and release, bronze pan tube to be inserted in cooling tank spray containing concentration be the distilled water of the copper antioxidant of 7% as water coolant, be quickly cooled to 20 DEG C;
6), insert annealing furnace and vacuumize and again heat, after making annealing in-furnace temperature reach 220 DEG C in 10min, close heating and keep pressurize 2h;
7), take out bronze pan tube, Temperature fall is depressurized to room temperature normal pressure.
embodiment 3
Annealing process comprises the following steps:
1), bronze pan tube is carried out ultrasonic cleaning;
2), in the bronze pan tube after cleaning inject the nitrogen of 0.25MPa, two seals;
3), by bronze pan tube put into annealing furnace, pump air in annealing furnace and be filled with protective gas carbonic acid gas again after forming negative pressure, form malleation;
4), under stress heat, after making annealing in-furnace temperature reach 300 DEG C in 25min, and heat-insulation pressure keeping 3h;
5), stop heating and release, bronze pan tube to be inserted in cooling tank spray containing concentration be the distilled water of the copper antioxidant of 6% as water coolant, be quickly cooled to 35 DEG C;
6), insert annealing furnace and vacuumize and again heat, after making annealing in-furnace temperature reach 250 DEG C in 12min, close heating and keep pressurize 3h;
7), take out bronze pan tube, Temperature fall is depressurized to room temperature normal pressure.
embodiment 4
Annealing process comprises the following steps:
1), bronze pan tube is carried out ultrasonic cleaning;
2), in the bronze pan tube after cleaning inject the nitrogen of 0.36MPa, two seals;
3), by bronze pan tube put into annealing furnace, pump air in annealing furnace and be filled with protective gas carbonic acid gas again after forming negative pressure, form malleation;
4), under stress heat, after making annealing in-furnace temperature reach 330 DEG C in 17min, and heat-insulation pressure keeping 3h;
5), stop heating and release, bronze pan tube to be inserted in cooling tank spray containing concentration be the distilled water of the copper antioxidant of 7% as water coolant, be quickly cooled to 31 DEG C;
6), insert annealing furnace and vacuumize and again heat, after making annealing in-furnace temperature reach 260 DEG C in 14min, close heating and keep pressurize 2.5h;
7), take out bronze pan tube, Temperature fall is depressurized to room temperature normal pressure.
The above is only the preferred embodiment of the present invention, it should be pointed out that for those skilled in the art, can also make some improvement under the premise without departing from the principles of the invention, and these improvement also should be considered as protection scope of the present invention.
Claims (2)
1. a bronze pan tube method for annealing, is characterized in that comprising the following steps:
1), bronze pan tube is carried out ultrasonic cleaning;
2), in the bronze pan tube after cleaning inject the nitrogen of 0.25-0.4MPa, two seals;
3), by bronze pan tube put into annealing furnace, pump air in annealing furnace and be filled with protective gas carbonic acid gas again after forming negative pressure, form malleation;
4), under stress heat, after making annealing in-furnace temperature reach 300 DEG C-400 DEG C in 15-25min, and heat-insulation pressure keeping 2h-3h;
5), stop heating and release, bronze pan tube is inserted the water coolant of spray containing copper antioxidant in cooling tank and be quickly cooled to 20 DEG C-35 DEG C;
6), insert annealing furnace and vacuumize and again heat, after making annealing in-furnace temperature reach 220 DEG C-260 DEG C in 10-15min, close heating and keep pressurize 1.5-3h;
7), take out bronze pan tube, Temperature fall is depressurized to room temperature normal pressure.
2. bronze pan tube method for annealing according to claim 1, is characterized in that comprising the following steps: in described step 4), water coolant is distilled water; The concentration of described copper antioxidant is 6%-8%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410773845.4A CN104451105A (en) | 2014-12-16 | 2014-12-16 | Annealing method of copper coil pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410773845.4A CN104451105A (en) | 2014-12-16 | 2014-12-16 | Annealing method of copper coil pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104451105A true CN104451105A (en) | 2015-03-25 |
Family
ID=52897847
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410773845.4A Pending CN104451105A (en) | 2014-12-16 | 2014-12-16 | Annealing method of copper coil pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104451105A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109355477A (en) * | 2018-10-26 | 2019-02-19 | 浙江星康铜业有限公司 | A kind of annealing device and method for annealing |
| 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 |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01287257A (en) * | 1988-05-13 | 1989-11-17 | Furukawa Electric Co Ltd:The | Method of filling substitution gas into copper or copper alloy pipe |
| CN102787232A (en) * | 2012-09-11 | 2012-11-21 | 太仓市林源电线电缆有限公司 | Annealing system for multi-strand superfine copper wires and annealing method of annealing system for multi-strand superfine copper wires |
| CN103805926A (en) * | 2012-11-15 | 2014-05-21 | 浙江正导光电股份有限公司 | Annealing treatment method of copper stranded wire |
-
2014
- 2014-12-16 CN CN201410773845.4A patent/CN104451105A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01287257A (en) * | 1988-05-13 | 1989-11-17 | Furukawa Electric Co Ltd:The | Method of filling substitution gas into copper or copper alloy pipe |
| CN102787232A (en) * | 2012-09-11 | 2012-11-21 | 太仓市林源电线电缆有限公司 | Annealing system for multi-strand superfine copper wires and annealing method of annealing system for multi-strand superfine copper wires |
| CN103805926A (en) * | 2012-11-15 | 2014-05-21 | 浙江正导光电股份有限公司 | Annealing treatment method of copper stranded wire |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109355477A (en) * | 2018-10-26 | 2019-02-19 | 浙江星康铜业有限公司 | A kind of annealing device and method for annealing |
| 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 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2387288C1 (en) | Pear and quince compote conservation method | |
| RU2387345C1 (en) | Pear and quince compote conservation method | |
| RU2387348C1 (en) | Pear and quince compote conservation method | |
| CN105525087B (en) | Method for improving quality of bottom layer of oriented silicon steel | |
| CN101654767A (en) | Vacuum protection atmosphere annealing process of industrial pure titanium roll | |
| CN107326157A (en) | A kind of vacuum heat surface modification technology | |
| CN102994708A (en) | Cover-type furnace annealing process | |
| CN104451105A (en) | Annealing method of copper coil pipe | |
| CN105779928A (en) | Nitriding heat treatment process for 38CrMoAlA | |
| RU2015122209A (en) | METHOD FOR PRODUCING PACKAGING ALUMINUM STEEL AND APPLICATION OF ALUMINUM STEEL SHEET | |
| CN108342670B (en) | Heat treatment method of ZTA15 titanium alloy | |
| CN103555923A (en) | Precision bearing cold and heat treatment technological method | |
| CN102703652A (en) | Heat treatment process of hot-work-die steel for aluminum die-casting mould | |
| CN104263885A (en) | Heat treatment process for improving low-temperature toughness of castings | |
| RU2449609C2 (en) | Tangerine compote preservation method | |
| CN102634745A (en) | Heat processing technology of aluminum alloy castings | |
| CN104745984A (en) | Heat treatment process for hypereutectic aluminum silicon alloy | |
| CN104624643A (en) | Cold rolling technology for titanium plates | |
| RU2449616C2 (en) | Gooseberry compote preservation method | |
| CN110760654A (en) | Quenching process method of martensitic stainless steel | |
| CN104178603A (en) | Vacuum furnace quenching process | |
| CN102367505A (en) | Method for increasing surface brightness of cover furnace annealing strip | |
| CN105755240A (en) | 5CrNiMo tempering process | |
| RU2449617C2 (en) | Grape compote preservation method | |
| RU2009137728A (en) | METHOD FOR CANNING COMPUTER FROM CHERRY |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150325 |