CN104400352A - Method for processing semi-hard copper pipes - Google Patents
Method for processing semi-hard copper pipes Download PDFInfo
- Publication number
- CN104400352A CN104400352A CN201410660398.1A CN201410660398A CN104400352A CN 104400352 A CN104400352 A CN 104400352A CN 201410660398 A CN201410660398 A CN 201410660398A CN 104400352 A CN104400352 A CN 104400352A
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- China
- Prior art keywords
- copper pipe
- semi
- finished product
- copper pipes
- copper
- Prior art date
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 90
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 90
- 239000010949 copper Substances 0.000 title claims abstract description 90
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000012545 processing Methods 0.000 title abstract description 6
- 238000000137 annealing Methods 0.000 claims abstract description 24
- 239000011265 semifinished product Substances 0.000 claims abstract description 22
- 238000004806 packaging method and process Methods 0.000 claims abstract description 5
- 239000000047 product Substances 0.000 claims abstract description 5
- 238000001514 detection method Methods 0.000 claims abstract description 4
- 238000003801 milling Methods 0.000 claims abstract description 4
- 238000003672 processing method Methods 0.000 claims description 16
- 210000001161 mammalian embryo Anatomy 0.000 claims description 9
- 238000003754 machining Methods 0.000 claims description 7
- 239000007795 chemical reaction product Substances 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 238000005266 casting Methods 0.000 abstract 1
- 238000005096 rolling process Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 238000004886 process control Methods 0.000 description 2
- 238000005482 strain hardening Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000005555 metalworking Methods 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Extraction Processes (AREA)
Abstract
The invention discloses a method for processing semi-hard copper pipes. The method is characterized by comprising the following steps of 1, casting copper into coarse blank copper pipes; 2, milling, rolling and drawing, namely preparing the coarse blank copper pipes into fine blank copper pipes close to standard dimensions through processing equipment and molds; 3, drawing semi-finished products, namely drawing the fine blank copper pipes into semi-finished copper pipes through a plurality of procedures by using accurate processing equipment and corresponding molds; 4, annealing online, namely annealing and softening the semi-finished copper pipes through on-line annealing equipment; 5, drawing finished products, namely drawing the softened semi-finished copper pipes again into finished copper pipes of which the dimensions and the state meet requirements through the accurate processing equipment and the corresponding molds; 6, finishing, namely finishing and coiling the finished copper pipes into copper pipe rolls according to requirements of clients on roll weight, pony roll size and flaw detection; 7, packaging, namely packaging and warehousing the copper pipe rolls.
Description
Technical field
The present invention relates to a kind of method for metal working, particularly a kind of half-hard state copper pipe processing method.
Background technology
Copper pipe state is divided into hard state, half-hard state and soft state, current industry adopts the method controlling annealing temperature to produce half-hard state copper pipe, after annealing the state of copper pipe and annealing temperature, programming rate, temperature retention time, copper pipe anneal before the factor such as deformation extent closely related.Be the change curve of work hardening copper Annealing Property and temperature below, can know from figure copper pipe state one comparatively narrow temperature interval sharply change, thus need accurately to control annealing temperature.In fact in suitability for industrialized production, annealing furnace is bulky, temperature control is at ± 10 DEG C, and be subject to batch, voltage pulsation, electrical heating components and parts performance change, thermometric component locations and the impact of the many-side such as performance change, stove inner blower situation, same annealing process different stove copper pipe performance difference is larger, often there is performance off-gage phenomenon, cause product defective.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of processing method that can obtain the half-hard state copper pipe of stable performance.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of half-hard state copper pipe processing method, is characterized in that: comprise
Step one, founding, by copper founding coarse-blank copper pipe;
Step 2, milling is rolled and is drawn, and by process equipment and mould, thick embryo copper pipe is made the thin embryo copper pipe of the size that is near the mark,
Step 3, semi-finished product drawing, makes semi-finished product copper pipe by finish machining equipment and corresponding mould to the drawing that thin embryo copper pipe carries out some procedures;
Step 4, anneals online, and semi-finished product copper pipe is carried out annealing softening by online annealing device;
Step 5, end product drawing, by the semi-finished product copper pipe after softening by finish machining equipment and corresponding mould again drawing make size and the satisfactory finished product copper pipe of state.
Step 6, finishing, carries out finishing according to client to the requirement that volume is heavy, coil size and flaw detection and is wound in copper pipe volume;
Step 7, packaging; Copper pipe coil packing is put in storage.
Also needed before described step 3 according to customer status requirement, the semi-finished product copper tube size outer diameter D and wall thickness t that need online annealing are set.
Described conditions dictate comprises tensile strength Rm and percentage elongation A.
Have employed four road drawing procedure in described step 3 and make semi-finished product copper pipe.
The invention has the beneficial effects as follows:
1, than existing, this processing method produce the stable performance of half-hard state copper pipe, evenly, improve copper pipe and produce lumber recovery;
2, than existing, this processing method does not increase drawing passes, all realizes basket and produces basket, improve copper pipe production efficiency in process, whole copper pipe need not be cut in the tortuous rear feeding annealing furnace of multistage;
3, than existing, this processing method adopts online annealing way to soften copper pipe, (original production uses anneal to improve energy utilization rate, need to use bin to load copper pipe, during annealing, bin is heated, is cooled together with copper pipe, and energy utilization rate is low);
4, than existing, this processing method can according to client's instructions for use, the half-hard state copper pipe of customized varying strength scope (tensile strength);
5, than existing, the half-hard state copper pipe performance that this processing method is produced is uniform and stable, avoiding because causing client use difficulty and scrap between batches, with the state fluctuation between batch different dish, improve client's production efficiency and copper pipe utilization rate;
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is the process chart of new technology;
Fig. 2 is the process chart of old technology;
Fig. 3 is work hardening copper Annealing Property and the temperature relation figure of old technology.
Detailed description of the invention
Be described below in detail embodiments of the invention, described embodiment example is shown in the drawings, and wherein same or similar label represents same or similar element or has element that is identical or similar functions from start to finish.Be exemplary below by embodiment is described with reference to the drawings, be intended to explain the present invention, and can not limitation of the present invention be interpreted as.
This processing method is applied to the copper pipe process of manufacture of the industries such as air conditioner refrigerating, electronics, communication cable, when not increasing copper pipe production equipment, by adjustment processing process, changing process control method, obtaining the half-hard state copper pipe of stable performance.
With reference to Fig. 1, Fig. 2, the invention discloses a kind of half-hard state copper pipe processing method, comprise the following steps,
Step one, founding, by copper founding coarse-blank copper pipe;
Step 2, milling is rolled and is drawn, and by process equipment and corresponding mould, thick embryo copper pipe is made the thin embryo copper pipe of the size that is near the mark;
Step 3, semi-finished product drawing, make semi-finished product copper pipe by finish machining equipment and corresponding mould to the drawing that thin embryo copper pipe carries out four procedures, every procedure cuts down certain surplus; Before this step, semi-finished product copper tube size outer diameter D and wall thickness t that the online annealing of needs is set (this conditions dictate mainly comprises the parameter such as tensile strength Rm and percentage elongation A) need be required according to customer status, to have stayed suitable allowance in the drawing in step 5
Step 4, anneals online, and semi-finished product copper pipe is carried out annealing softening by online annealing device, thus improves semi-finished product copper pipe internal stress state, and prepares for next step drawing;
Step 5, end product drawing, by the semi-finished product copper pipe after softening by finish machining equipment and corresponding mould again drawing make size and the satisfactory finished product copper pipe of state, drawing can make the outer field crystalline phase body structure of semi-finished product copper pipe fine and close, form one deck hardening structure, thus in this step, by changing the parameter of mould and the parameter of allowance, we are in the outer field crystalline phase body structure density of the process control semi-finished product copper pipe of drawing, thus form the different hardening structure of intensity, thus effectively change the parameter such as tensile strength Rm and percentage elongation A, the method with changed the tensile strength Rm of semi-finished product copper pipe and the method for percentage elongation A by the mode of annealing in the past, the copper pipe performance parameter stable and consistent of same batch, and pre-determined characteristics parameter copper pipe accurately can be produced, thus, can according to the half-hard state copper pipe of the customized varying strength scope (tensile strength) of customer demand, meet the higher demand of client,
Step 6, finishing, carries out finishing according to client to the requirement that volume is heavy, coil size and flaw detection and is wound in copper pipe volume;
Step 7, packaging; Copper pipe coil packing is put in storage.
In above-mentioned steps, process equipment, finish machining equipment and corresponding mould are all equipment and molds of conventional design, thus at this in detail its structure are not described in detail.
Above to a kind of half-hard state copper pipe processing method that the embodiment of the present invention provides, be described in detail, apply specific case herein to set forth principle of the present invention and embodiment, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.
Claims (4)
1. a half-hard state copper pipe processing method, is characterized in that: comprise
Step one, founding, by copper founding coarse-blank copper pipe;
Step 2, milling is rolled and is drawn, and by process equipment and mould, thick embryo copper pipe is made the thin embryo copper pipe of the size that is near the mark,
Step 3, semi-finished product drawing, makes semi-finished product copper pipe by finish machining equipment and corresponding mould to the drawing that thin embryo copper pipe carries out some procedures;
Step 4, anneals online, and semi-finished product copper pipe is carried out annealing softening by online annealing device;
Step 5, end product drawing, by the semi-finished product copper pipe after softening by finish machining equipment and corresponding mould again drawing make size and the satisfactory finished product copper pipe of state;
Step 6, finishing, carries out finishing according to client to the requirement that volume is heavy, coil size and flaw detection and is wound in copper pipe volume;
Step 7, packaging; Copper pipe coil packing is put in storage.
2. a kind of half-hard state copper pipe processing method according to claim 1, is characterized in that: also needed according to customer status requirement before described step 3, arranges the semi-finished product copper tube size outer diameter D and wall thickness t that need online annealing.
3. a kind of half-hard state copper pipe processing method according to claim 2, is characterized in that: described conditions dictate comprises tensile strength Rm and percentage elongation A.
4. a kind of half-hard state copper pipe processing method according to claim 2, is characterized in that: have employed four road drawing procedure in described step 3 and make semi-finished product copper pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410660398.1A CN104400352B (en) | 2014-11-18 | 2014-11-18 | Method for processing semi-hard copper pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410660398.1A CN104400352B (en) | 2014-11-18 | 2014-11-18 | Method for processing semi-hard copper pipes |
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| CN104400352A true CN104400352A (en) | 2015-03-11 |
| CN104400352B CN104400352B (en) | 2017-01-11 |
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|---|---|---|---|
| CN201410660398.1A Active CN104400352B (en) | 2014-11-18 | 2014-11-18 | Method for processing semi-hard copper pipes |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110499413A (en) * | 2019-07-09 | 2019-11-26 | 浙江海亮股份有限公司 | A kind of method of pipe fitting annealing regulation performance |
| CN114141439A (en) * | 2021-11-30 | 2022-03-04 | 天津经纬辉开光电股份有限公司 | Processing and manufacturing method of diamond-lattice double-side dispensing heat-resistant paper aluminum-clad flat wire for wind power transformer |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109986306A (en) * | 2019-04-10 | 2019-07-09 | 广东海亮铜业有限公司 | It is a kind of to dissipate rosette copper pipe and its production technology greatly |
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| WO1995028239A1 (en) * | 1994-04-14 | 1995-10-26 | Sumitomo Metal Industries, Ltd. | Bright-annealed highly smooth inner surface stainless steel pipe and method of manufacturing the same |
| CN1785586A (en) * | 2005-12-12 | 2006-06-14 | 浦益龙 | Production method of B7 heat transfer copper alloy seamless pipe |
| CN101078452A (en) * | 2007-06-19 | 2007-11-28 | 高新张铜股份有限公司 | Technique for processing semihard phosphorus deoxidized copper pipes |
| CN101209524A (en) * | 2007-12-21 | 2008-07-02 | 金龙精密铜管集团股份有限公司 | Method of preparing copper or copper alloy tube |
| CN102240697A (en) * | 2011-05-21 | 2011-11-16 | 广东龙丰精密铜管有限公司 | Production method and production line of copper coil pipe |
| CN104043943A (en) * | 2013-03-11 | 2014-09-17 | 高玉树 | Manufacturing process of cupronickel pipe |
-
2014
- 2014-11-18 CN CN201410660398.1A patent/CN104400352B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1995028239A1 (en) * | 1994-04-14 | 1995-10-26 | Sumitomo Metal Industries, Ltd. | Bright-annealed highly smooth inner surface stainless steel pipe and method of manufacturing the same |
| CN1785586A (en) * | 2005-12-12 | 2006-06-14 | 浦益龙 | Production method of B7 heat transfer copper alloy seamless pipe |
| CN101078452A (en) * | 2007-06-19 | 2007-11-28 | 高新张铜股份有限公司 | Technique for processing semihard phosphorus deoxidized copper pipes |
| CN101209524A (en) * | 2007-12-21 | 2008-07-02 | 金龙精密铜管集团股份有限公司 | Method of preparing copper or copper alloy tube |
| CN102240697A (en) * | 2011-05-21 | 2011-11-16 | 广东龙丰精密铜管有限公司 | Production method and production line of copper coil pipe |
| CN104043943A (en) * | 2013-03-11 | 2014-09-17 | 高玉树 | Manufacturing process of cupronickel pipe |
Non-Patent Citations (1)
| Title |
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| 荣文清: "试论BFe30-1-1白铜冷凝管的铸锭裂纹形成机理", 《东方电气评论》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110499413A (en) * | 2019-07-09 | 2019-11-26 | 浙江海亮股份有限公司 | A kind of method of pipe fitting annealing regulation performance |
| CN114141439A (en) * | 2021-11-30 | 2022-03-04 | 天津经纬辉开光电股份有限公司 | Processing and manufacturing method of diamond-lattice double-side dispensing heat-resistant paper aluminum-clad flat wire for wind power transformer |
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| CN104400352B (en) | 2017-01-11 |
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| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Method for processing semi-hard copper pipes Effective date of registration: 20171215 Granted publication date: 20170111 Pledgee: Zhengzhou Branch of China Minsheng Bank Co.,Ltd. Pledgor: WUXI GOLDEN DRAGON KAWAMURA PRECISION TUBE Co.,Ltd.|CHONGQING LONGYU PRECISE COPPER TUBE Co.,Ltd.|HENAN LONGHUI COPPER INDUSTRY Co.,Ltd.|Xinxiang Jinxiang Precision Pipe Fittings Co.,Ltd.|XINXIANG LONGTENG REFRIGERATION HIGH-TECH CO.,LTD.|JIANGSU CANGHUAN COPPER PRODUCTS CO.,LTD.|GOLDEN DRAGON PRECISE COPPER TUBE Group Inc.|GUANGDONG LONGFENG PRECISION COPPER PIPE CO.,LTD. Registration number: 2017990001045 |
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| CP02 | Change in the address of a patent holder |
Address after: 519090 No. 236 Shangdu Street, Hongqi Town, Jinwan District, Zhuhai City, Guangdong Province Patentee after: GUANGDONG LONGFENG PRECISION COPPER PIPE CO.,LTD. Address before: 519000 East Shuanglin Road, Zhuhai Avenue, Jinwan District, Zhuhai City, Guangdong Province Patentee before: GUANGDONG LONGFENG PRECISION COPPER PIPE CO.,LTD. |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20190814 Granted publication date: 20170111 Pledgee: Zhengzhou Branch of China Minsheng Bank Co.,Ltd. Pledgor: GUANGDONG LONGFENG PRECISION COPPER PIPE CO.,LTD. Registration number: 2017990001045 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Method for processing semi-hard copper pipes Effective date of registration: 20190904 Granted publication date: 20170111 Pledgee: Zhengzhou Branch of China Minsheng Bank Co.,Ltd. Pledgor: GUANGDONG LONGFENG PRECISION COPPER PIPE CO.,LTD. Registration number: Y2019990000126 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220801 Granted publication date: 20170111 Pledgee: Zhengzhou Branch of China Minsheng Bank Co.,Ltd. Pledgor: GUANGDONG LONGFENG PRECISION COPPER PIPE CO.,LTD. Registration number: Y2019990000126 |