CN109261739A - A kind of short route production wide cut is greater than 630mm transformer copper strip technique - Google Patents
A kind of short route production wide cut is greater than 630mm transformer copper strip technique Download PDFInfo
- Publication number
- CN109261739A CN109261739A CN201810967664.3A CN201810967664A CN109261739A CN 109261739 A CN109261739 A CN 109261739A CN 201810967664 A CN201810967664 A CN 201810967664A CN 109261739 A CN109261739 A CN 109261739A
- Authority
- CN
- China
- Prior art keywords
- annealing
- furnace
- finished product
- casting
- belt
- 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
-
- 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
- B21C37/02—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/46—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting
- B21B1/463—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling metal immediately subsequent to continuous casting in a continuous process, i.e. the cast not being cut before rolling
-
- 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
- B22D11/14—Plants for continuous casting
- B22D11/145—Plants for continuous casting for upward casting
Abstract
A kind of short route production wide cut is greater than 630mm transformer copper strip technique, and ingredient → continuous up-casting → breaking down → annealing → finished product rolling → annealing, cleaning → finished product is sheared → is packed and stored；Ingredient: it using 1 grade of electrolytic copper and red copper or old material, is matched by ingredient needed for production transformer copper strip, puts into smelting furnace after weighing respectively；Continuous up-casting: the valve between smelting furnace and holding furnace on connecting pipe is opened after melting, copper liquid is flowed into holding furnace through connecting pipe, the T2 conduction band base of 12 × 650~1050mm is produced using upward-casting process, made-up belt is batched；Both the production procedure of transformer copper strip had been shortened, while having reduced production cost, has improved transformer copper strip machining yield；The short route processing of transformer copper strip is realized, machining yield is improved instead of traditional production procedure using continuous up-casting made-up belt.
Description
Technical field
The invention belongs to non-ferrous metal metallurgy and manufacture field, especially a kind of short route production wide cut is greater than 630mm
Transformer copper strip technique.
Background technique
Copper is widely used in electric power, electrical apparatus industry, transformer copper because of its good conductive, thermally conductive and ductility
Band is one of its typical use, and the above transformer copper strip method of traditional production 630mm wide is that semicontinuous ingot casting passes through hot rolling, milling
The processes such as face, cold rolling, annealing, finishing, shearing are completed.
The above transformer copper strip processing technology of 630mm wide is mature and stable, the short route of technique, it is cost effective be that it is chased after
How the target asked to a greater extent shortens process flow, reduce production by optimizing to founding, processing technology
Cost, at the same guarantee the high conductivity of material and good mechanical performance be transformer copper strip processing main direction of studying.
In view of the foregoing, it now develops a kind of short route production wide cut and is greater than 630mm transformer copper strip technique.
Summary of the invention
Purpose of the invention is to overcome the shortcomings in the prior art, provides a kind of short route production wide cut and is greater than
630mm transformer copper strip technique, had both shortened the production procedure of transformer copper strip, while reducing production cost, improved change
Depressor copper strips machining yield.Using continuous up-casting made-up belt, instead of traditional " semi-continuous casting-heating-hot rolling-milling
Face " process realizes the short route processing of transformer copper strip.Made-up belt mills face without Double Milling, and directly progress cold rolling avoids milling
8~10% yield loss during face, improves machining yield.
The present invention to achieve the goals above, adopts the following technical scheme that a kind of short route production wide cut becomes greater than 630mm
Depressor copper strips technique, ingredient → continuous up-casting → breaking down → annealing → finished product rolling → annealing, cleaning → finished product shearing → packaging
Storage；
Ingredient: the first step using 1 grade of electrolytic copper and red copper or old material, is matched by ingredient needed for production transformer copper strip
Than putting into smelting furnace after weighing respectively；
Second step, continuous up-casting: melting furnace temperature is controlled at 1080~1110 DEG C, and smelting furnace and holding furnace are opened after melting
Between valve on connecting pipe, flow into copper liquid in holding furnace through connecting pipe, 1150~1170 DEG C of the temperature in holding furnace,
Using copper liquid temperature in thermocouple control holding furnace, the T2 conduction band base of 12 × 650~1050mm is produced using upward-casting process,
5~7 tons of weight, made-up belt is batched, the made-up belt dimensional discrepancy requirement produced are as follows: thickness 12mm, thickness tolerance≤
0.20mm, 600~1050mm of width, width tolerance ± 2.0mm；
Third step, breaking down: made-up belt mills face without Double Milling, is directly rolled on four-roller reversing cogging mill, rolls
Thickness is determined according to finished product thickness, it is ensured that finished product rolls general working rate and is not less than 50%.
Annealing: 4th step the made-up belt after rolling is put into bell furnace and carries out intermediate annealing, it is therefore an objective to eliminate continuous up-casting
The structural heterogenity that made-up belt generates during cogging, 360~440 DEG C of annealing temperature, soaking time 5~8 hours, in annealing
25% nitrogen atmosphere is added to be protected using 75% high hydrogen；
5th step, finished product rolling: the mill product on four-roller reversing finishing mill；
Annealing, cleaning: 6th step realizes the continuous annealing of band, pickling, blunt in Junker air cushion furnace formula continuous annealing furnace
Change, drying；550~630 DEG C of annealing temperature, 10~80m/min of speed；Surface is carried out to band using 10~20% dilute sulfuric acid
Pickling processes；Surface passivating treatment is carried out to band using 2~3 ‰ passivating solution；
7th step, finished product shearing: according to finished width, volume it is important ask, disk slitting shears column on cut, control side
Portion's burr height；
8th step, is packed and stored: finished product is packed and stored after the assay was approved.
The beneficial effects of the present invention are: the present invention had both shortened the production procedure of transformer copper strip, while reducing production
Cost improves transformer copper strip machining yield.Using continuous up-casting made-up belt, instead of traditional, " semi-continuous casting-adds
Heat-hot rolling-milling face " process realizes the short route processing of transformer copper strip.Made-up belt mills face without Double Milling, directly carries out
Cold rolling avoids 8~10% yield loss during milling face, improves machining yield.
Present invention reduces processing costs, are mainly manifested in: (1) shortening of process flow；(2) continuous up-casting furnace body compared with
Small, fire consumption is lower in production process；(3) without milling face, the metal scraps of generation 8~10% is avoided, new old material price differential is saved.
Detailed description of the invention
The present invention will be further explained below with reference to the attached drawings:
Fig. 1 is the processing process figure of short route production transformer copper strip.
Specific embodiment
Below with reference to embodiment, invention is further described in detail with specific embodiment:
Embodiment one
For transformer copper strips product, main technical requirements are as follows:
The trade mark: T2 is led
Specification: 0.8 × 650mm
State: soft state (M)
Performance requirement: tensile strength Rm >=195MPa, HV >=45；At 20 DEG C, conductivity >=98%IACS；
Processing technology is as follows:
The first step, ingredient: leading old material using 1 grade of electrolytic copper and red copper or T2, by Cu+Ag >=99.90%, other impurity summations
≤ 0.010% is matched, respectively weighing investment smelting furnace；
Second step, continuous up-casting: melting furnace temperature is controlled at 1080~1110 DEG C, and smelting furnace and holding furnace are opened after melting
Between valve on connecting pipe, flow into copper liquid in holding furnace through connecting pipe, 1150~1170 DEG C of the temperature in holding furnace,
Using copper liquid temperature in thermocouple control holding furnace, the T2 conduction band base of 12 × 750mm, weight 5 are produced using upward-casting process
Ton, made-up belt is batched, the made-up belt dimensional discrepancy requirement produced are as follows: thickness 12mm, thickness tolerance≤0.20mm, width
750mm, width tolerance ± 2.0mm；
Third step, breaking down: made-up belt mills face without Double Milling, is directly rolled on four-roller reversing cogging mill, finish to gauge
Thickness 2.0mm；
Annealing: 4th step the made-up belt after rolling is put into bell furnace and carries out intermediate annealing, it is therefore an objective to eliminate continuous up-casting
The structural heterogenity that made-up belt generates during cogging, 360~440 DEG C of annealing temperature, soaking time 5~8 hours, in annealing
25% nitrogen atmosphere is added to be protected using 75% high hydrogen；
Finished product rolling: 5th step rolls 0.8mm finished product on four-roller reversing finishing mill；
Annealing, cleaning: 6th step realizes the continuous annealing of band, pickling, blunt in Junker air cushion furnace formula continuous annealing furnace
Change, drying；550~630 DEG C of annealing temperature, speed 25m/min；Surface acid-washing is carried out to band using 10~20% dilute sulfuric acid
Processing；Surface passivating treatment is carried out to band using 2~3 ‰ passivating solution；
7th step, finished product shearing: according to finished width, volume it is important ask, disk slitting shears column on cut, after cutting
Finished width be 650mm, control edge burr height；
8th step, is packed and stored: finished product is packed and stored after the assay was approved.
Embodiment two
For transformer copper strips product, main technical requirements are as follows:
The trade mark: T2 is led
Specification: 1.0 × 1000mm
State: soft state (M)
Performance requirement: tensile strength Rm >=195MPa, HV >=45；At 20 DEG C, conductivity >=98%IACS.
Processing technology is as follows:
The first step, ingredient: leading old material using 1 grade of electrolytic copper and red copper or T2, by Cu+Ag >=99.90%, other impurity summations
≤ 0.010% is matched, respectively weighing investment smelting furnace；
Second step, continuous up-casting: melting furnace temperature is controlled at 1080~1110 DEG C, and smelting furnace and holding furnace are opened after melting
Between valve on connecting pipe, flow into copper liquid in holding furnace through connecting pipe, 1150~1170 DEG C of the temperature in holding furnace,
Using copper liquid temperature in thermocouple control holding furnace, the T2 conduction band base of 12 × 1050mm, weight 6 are produced using upward-casting process
Ton, made-up belt is batched, the made-up belt dimensional discrepancy requirement produced are as follows: thickness 12mm, thickness tolerance≤0.20mm, width
1050mm, width tolerance ± 2.0mm；
Third step, breaking down: made-up belt mills face without Double Milling, is directly rolled on four-roller reversing cogging mill, finish to gauge
Thickness 2.0mm；
Annealing: 4th step the made-up belt after rolling is put into bell furnace and carries out intermediate annealing, it is therefore an objective to eliminate continuous up-casting
The structural heterogenity that made-up belt generates during cogging, 360~440 DEG C of annealing temperature, soaking time 5~8 hours, in annealing
25% nitrogen atmosphere is added to be protected using 75% high hydrogen；
Finished product rolling: 5th step rolls 0.8mm finished product on four-roller reversing finishing mill；
Annealing, cleaning: 6th step realizes the continuous annealing of band, pickling, blunt in Junker air cushion furnace formula continuous annealing furnace
Change, drying；550~630 DEG C of annealing temperature, speed 15m/min；Surface acid-washing is carried out to band using 10~20% dilute sulfuric acid
Processing；Surface passivating treatment is carried out to band using 2~3 ‰ passivating solution；
7th step, finished product shearing: according to finished width, volume it is important ask, 1050 models disk slitting shears column on carry out
Cutting, the finished width after cutting are 1000mm, control edge burr height；
8th step, is packed and stored: finished product is packed and stored after the assay was approved.
Claims (2)
1. a kind of short route production wide cut is greater than 630mm transformer copper strip technique, it is characterised in that: ingredient → continuous up-casting → just
Roll → anneal → finished product rolling → annealing, cleaning → finished product is sheared → is packed and stored；
The first step, ingredient: using 1 grade of electrolytic copper and red copper or old material, being matched by ingredient needed for production transformer copper strip, point
Also known as smelting furnace is put into after weight；
Second step, continuous up-casting: melting furnace temperature is controlled at 1080~1110 DEG C, is opened between smelting furnace and holding furnace after melting
Valve on connecting pipe flows into copper liquid in holding furnace through connecting pipe, and 1150~1170 DEG C of the temperature in holding furnace uses
Thermocouple controls copper liquid temperature in holding furnace, and the T2 conduction band base of 12 × 650~1050mm, weight are produced using upward-casting process
5~7 tons, made-up belt is batched, the made-up belt dimensional discrepancy requirement produced are as follows: thickness 12mm, thickness tolerance≤0.20mm are wide
Spend 600~1050mm, width tolerance ± 2.0mm；
Third step, breaking down: made-up belt mills face without Double Milling, is directly rolled on four-roller reversing cogging mill, rolling thickness
It is determined according to finished product thickness, it is ensured that finished product rolls general working rate and is not less than 50%.
2. a kind of short route production wide cut according to claim 1 is greater than 630mm transformer copper strip technique, feature exists
In: annealing: the 4th step the made-up belt after rolling is put into bell furnace and carries out intermediate annealing, it is therefore an objective to eliminate continuous up-casting made-up belt
The structural heterogenity generated during cogging, soaking time 5~8 hours, uses in annealing by 360~440 DEG C of annealing temperature
75% high hydrogen adds 25% nitrogen atmosphere to be protected；
5th step, finished product rolling: the mill product on four-roller reversing finishing mill；
Annealing, cleaning: 6th step realizes continuous annealing, pickling, passivation, the baking of band in Junker air cushion furnace formula continuous annealing furnace
It is dry；550~630 DEG C of annealing temperature, 10~80m/min of speed；Surface acid-washing is carried out to band using 10~20% dilute sulfuric acid
Processing；Surface passivating treatment is carried out to band using 2~3 ‰ passivating solution；
7th step, finished product shearing: according to finished width, volume it is important ask, disk slitting shears column on cut, control edge hair
Thorn height；
8th step, is packed and stored: finished product is packed and stored after the assay was approved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810967664.3A CN109261739A (en) | 2018-08-23 | 2018-08-23 | A kind of short route production wide cut is greater than 630mm transformer copper strip technique |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810967664.3A CN109261739A (en) | 2018-08-23 | 2018-08-23 | A kind of short route production wide cut is greater than 630mm transformer copper strip technique |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109261739A true CN109261739A (en) | 2019-01-25 |
Family
ID=65154166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810967664.3A Pending CN109261739A (en) | 2018-08-23 | 2018-08-23 | A kind of short route production wide cut is greater than 630mm transformer copper strip technique |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109261739A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110938787A (en) * | 2019-12-24 | 2020-03-31 | 中铝华中铜业有限公司 | Air cushion type continuous annealing process |
| CN113088653A (en) * | 2021-04-02 | 2021-07-09 | 安徽楚江科技新材料股份有限公司 | Production process of large-size automobile parts |
| CN113426830A (en) * | 2021-06-16 | 2021-09-24 | 浙江花园铜业有限公司 | High-precision controllable-plate-type ultra-wide copper strip for transformer and preparation process thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101502872A (en) * | 2009-03-11 | 2009-08-12 | 上海康成铜材有限公司 | Shortened method for producing oxygen-free copper belt |
| CN103008383A (en) * | 2012-12-17 | 2013-04-03 | 徐高磊 | Production technology for bimetal coating copper strip |
| CN103088230A (en) * | 2013-02-28 | 2013-05-08 | 徐高磊 | High-copper alloy strip for heat sink of automobile |
| CN106140862A (en) * | 2016-07-11 | 2016-11-23 | 绍兴市力博电气有限公司 | A kind of production technology of electron tube copper strips |
| CN106180248A (en) * | 2016-08-05 | 2016-12-07 | 徐高磊 | A kind of electrician is by the production technology of phosphor-copper band |
-
2018
- 2018-08-23 CN CN201810967664.3A patent/CN109261739A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101502872A (en) * | 2009-03-11 | 2009-08-12 | 上海康成铜材有限公司 | Shortened method for producing oxygen-free copper belt |
| CN103008383A (en) * | 2012-12-17 | 2013-04-03 | 徐高磊 | Production technology for bimetal coating copper strip |
| CN103088230A (en) * | 2013-02-28 | 2013-05-08 | 徐高磊 | High-copper alloy strip for heat sink of automobile |
| CN106140862A (en) * | 2016-07-11 | 2016-11-23 | 绍兴市力博电气有限公司 | A kind of production technology of electron tube copper strips |
| CN106180248A (en) * | 2016-08-05 | 2016-12-07 | 徐高磊 | A kind of electrician is by the production technology of phosphor-copper band |
Non-Patent Citations (3)
| Title |
|---|
| 兰利亚等: "《铜及铜合金精密带材生产技术》", 30 June 2009, 冶金工业出版社 * |
| 徐惠华: "《有色金属进展》", 30 November 2007, 中南大学出版社 * |
| 马俊杰等: "用上引法生产宽幅、高纯无氧铜带新技术", 《特种铸造及有色合金》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110938787A (en) * | 2019-12-24 | 2020-03-31 | 中铝华中铜业有限公司 | Air cushion type continuous annealing process |
| CN113088653A (en) * | 2021-04-02 | 2021-07-09 | 安徽楚江科技新材料股份有限公司 | Production process of large-size automobile parts |
| CN113426830A (en) * | 2021-06-16 | 2021-09-24 | 浙江花园铜业有限公司 | High-precision controllable-plate-type ultra-wide copper strip for transformer and preparation process thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106601324B (en) | A kind of high bond strength Copper-Aluminum compound conductive material and preparation method thereof | |
| CN103495618B (en) | The rolling casting bonding process units of composite metal plate and method | |
| CN108220692B (en) | Preparation method of high-strength aluminum alloy plate for thinning and drawing | |
| CN103060542B (en) | Manufacturing method for low expansion alloy wide and thick plate | |
| CN111519116B (en) | Preparation method of large-length solderless copper-chromium-zirconium contact line | |
| CN109261739A (en) | A kind of short route production wide cut is greater than 630mm transformer copper strip technique | |
| CN109261740A (en) | A kind of short route production copper door band technique | |
| CN103088230A (en) | High-copper alloy strip for heat sink of automobile | |
| CN102274936B (en) | Method for manufacturing non-oriented silicon steel plate based on twin-roll thin strip continuous casting technology | |
| CN106636729A (en) | Polybasic copper alloy plate and strip for power battery connector and preparation method thereof | |
| CN102352452A (en) | Processing process method of corrosion-resistant copper-zinc-aluminum alloy material | |
| CN107723638A (en) | A kind of preparation method of deep-draw titanium plate | |
| CN107177793A (en) | A kind of special thick structural steel and iron of the low-alloy of 610mm of thickness 400 and its manufacture method | |
| CN104313467B (en) | A kind of smelting process of non-oriented electrical steel | |
| CN102021295B (en) | Cold-rolling steel belt for flux-cored wire and manufacture method thereof | |
| CN1318633C (en) | Method for processing specific shape-changing magnesium and magnesium alloy plate strip | |
| CN107716885A (en) | A kind of copper alloy with high strength and high conductivity band short-flow production method | |
| CN105256225B (en) | Elevator cold-rolled steel sheet and preparation method thereof | |
| CN107282686A (en) | A kind of production technology of short route half-hard state copper belt | |
| CN209334441U (en) | Medium thin slab continuous casting and rolling unit | |
| CN110714147A (en) | 6082 aluminum alloy plate for aviation and production process thereof | |
| CN111621666B (en) | Rolling method of Cu-Cr series alloy plate strip | |
| CN104028557B (en) | Copper or copper alloy strip and manufacturing method and producing device thereof | |
| CN104073681A (en) | Production method for brass strip | |
| CN112090960A (en) | Method for producing 400-500 MPa high-strength anti-seismic deformed steel bar by non-heating low-temperature slitting rolling |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190125 |