CN107971711A - A kind of mirror copper band production technology for button fabric product - Google Patents
A kind of mirror copper band production technology for button fabric product Download PDFInfo
- Publication number
- CN107971711A CN107971711A CN201711477279.2A CN201711477279A CN107971711A CN 107971711 A CN107971711 A CN 107971711A CN 201711477279 A CN201711477279 A CN 201711477279A CN 107971711 A CN107971711 A CN 107971711A
- Authority
- CN
- China
- Prior art keywords
- copper
- annealing
- speed
- furnace
- volume
- 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
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
Abstract
The invention discloses a kind of mirror copper band production technology for button fabric product, belong to copper plate/strip technical field of producing, its step is:(1)Melting ingot casting;(2)Sawing;(3)Hot rolling;(4)Milling face;(5)Roughing, wherein, the specific thickness with volume after roughing is 2.5mm;(6)Once anneal;(7)Once clean;(8)In roll;(9)Double annealing;(10)Secondary cleaning;(11)Middle finish rolling;(12)Anneal three times;(13)Finish rolling;(14)Four annealing;(15)Examine and deliver.Copper strip surface quality and its performance can be effectively improved by the technical solution, so as to meet the production requirement of button fabric product, and then workshop cost is reduced, improve productive profit.
Description
Technical field
The present invention relates to a kind of copper plate/strip technical field of producing, more particularly to a kind of mirror for button fabric product
Face copper strips production technology.
Background technology
Button fabric product as taking the higher-end businesses that are segmented in auxiliary industry product, the control of the sector product Surface Quality with
Properties of product control require it is high, wherein, in surface quality management and control require be minute surface, its surface roughness requirements is 0.08
Between um -0.12 um, and its surface requirements is without significant aberration, bright print, prevent to scratch, bright line the defects of, meeting surface
While quality, its performance is also required to meet HV75-85, to sum up, since the copper strips quality for producing button fabric product directly affects
The performance of button fabric product, therefore its production requirement is stringent, performance indicator is more demanding.
But currently used for the copper strips of button fabric production, the annealing quality in its production process is poor, parameter
Set it is undesirable, and produce running it is cumbersome so that the copper strips produced cannot meet the production requirement of button fabric product, therefore mesh
It is preceding to improve copper strip surface quality and its performance there is an urgent need for original production technology is optimized, meet the production requirement of button fabric product,
Reduce workshop cost, improve productive profit.
The content of the invention
Technical problems to be solved by the inivention
The invention reside in overcome the copper strips for button fabric production in the prior art, its complex production process, the quality of production
The deficiency of the problems such as poor, there is provided a kind of mirror copper band production technology for button fabric product, technical side using the present invention
Case can effectively improve copper strip surface quality and its performance, so as to meet the production requirement of button fabric product, and then reduce workshop
Cost, improve productive profit.
Technical solution
To reach above-mentioned purpose, technical solution provided by the invention is:
A kind of mirror copper band production technology for button fabric product of the present invention, its step are as follows:
(1)Melting ingot casting;(2)Sawing;(3)Hot rolling;(4)Milling face;(5)Roughing, wherein, the specific thickness with volume after roughing is
2.5mm;(6)Once anneal;(7)Once clean;(8)In roll;(9)Double annealing;(10)Secondary cleaning;(11)Middle finish rolling;
(12)Anneal three times;(13)Finish rolling;(14)Four annealing;(15)Examine and deliver.
Further improved as of the invention, step(1)In:Ingredient standard by electrolytic copper plate and zinc ingot metal according to H65 brass
It is different according to the fusing point of two kinds of materials after weighted, first cathode copper is added in copper water stove after carrying out heating fusing, then by zinc ingot metal
Fusing is added, adds refining agent and coverture during melt copper as requested, refining agent refines slag-cleaning agent, coverture for copper alloy
For rice bran, after being examined by stirring, drag for slag ingredient, when the copper water temperature of fusing to be adjusted is 1030-1080 DEG C, then by copper water stove
The copper water of interior fusing is poured into water mold by flow tube body, uses special draw-casting machine cast to go out casting of the thickness for 260mm
Ingot, in order to ensure slab quality, it is necessary to be covered using dry borax to copper water during cast, ensures casting billet surface matter
Amount, no slag inclusion, stomata etc. are abnormal, and during draw-casting machine progress cast copper ingot, when the content of lead in copper water is less than 150ppm, cast speed
Spend for 17rpm, cooling water pressure 0.2Mpa;When the content of lead in copper water is more than 150ppm and is less than 200ppm, casting speed is
14rpm, cooling water pressure 0.25Mpa;Step(2)In:To step(1)The ingot casting that middle thickness is 260mm carries out sawing, head saw
Length control is cut to control in 20-25cm in 8-10cm, afterbody sawing length.
Further improved as of the invention, step(3)In:Will be through step(2)Ingot casting after sawing sequentially adds stepping furnace
Inside heated, ingot blank stepping spacing is 574mm, stepping rate 27648mm/min so that ingot casting temperature when ingot casting heating 5 is small
After degree reaches 870 DEG C, multi- pass rolling is carried out into two roller hot-rolling mills, hot-rolling mill specification is φ 650*650mm, mill speed
100m/min, hot-rolling mill cooling are cooled down using emulsion, and emulsion mass concentration is 0.3%, treats that ingot rolling is laggard to 17.0mm
The online water cooling of row, finally batches discharging using five roller centreless coilers;Step(4)In:By step(3)Hot outgoing gauge is
The made-up belt of 17.0mm carries out milling, Milling Speed 5m/min, made-up belt upper and lower surface milling amount using milling machine to its upper and lower surface
For each 0.8mm, milling rear surface roughness is controlled within 1.6Ra/um;Step(5)In:Will be through step(4)Behind milling face
The made-up belt of 15.4mm carries out multi-pass roughing, and volume is unloaded after being rolled down to 2.5mm, and roughing mill specification is φ 250/450*500mm, rolling
Speed is 180m/min, and roughing mill uses emulsion lubrication, and quality of the emulsion concentration is 3%.
Further improved as of the invention, step(6)In:By step(5)The band volume that thick outgoing gauge is 2.5mm uses clock
Bell type annealing furnace is annealed, and specific annealing process is:By 2.5mm band volume input bell furnace in, by 3.5 it is small when be warming up to
480 DEG C, when then insulation 5 is small, room temperature taking-up is furnace-cooled to after insulation;Step(7)In:By step(6)After once annealing
The band volume that thickness is 2.5mm uses the side of pickling → clear water flushing → polishing → hot water injection → passivation → drying → winding successively
Formula is handled, wherein, using sulfuric acid washing, h 2 so 4 concentration 12%;Polished using 240 mesh sub-thread wire brush, bristle material
For carborundum, polishing rotating speed is 600 r/min, cleaning speed 30m/min.
Further improved as of the invention, step(8)In:By step(7)Thickness is that the band of 2.5mm involves in after once cleaning
Row multi- pass rolling, is rolled down to thickness to unload volume after 0.6mm, middle milling train specification is φ 260/450*500mm, is rolled using full oil
System, mill speed 240m/min;Step(9)In:By step(8)The band volume that middle outgoing gauge is 0.6mm is moved back using bell-jar
Stove is annealed, and specific annealing process is:Will with volume put into bell furnace in after, by 3.5 it is small when be warming up to 460 DEG C, then
Keep the temperature 5 it is small when, be furnace-cooled to after insulation room temperature taking-up;Step(10)In:By step(9)Thickness is 0.6mm after double annealing
Band volume handled successively by the way of pickling → clear water flushing → polishing → hot water injection → passivation → drying → winding,
Wherein, using sulfuric acid washing, h 2 so 4 concentration 8%;Polished using 1000 mesh multiply wire brush, bristle material is aluminium oxide, is thrown
Light rotating speed is 900 r/min, cleaning speed 80m/min;Temperature is used to carry out hot water injection for 70 DEG C of water;It is blunt using liquid
Agent is passivated.
Further improved as of the invention, step(11)In:By step(10)Thickness is the band of 0.6 mm after secondary cleaning
Volume carries out multi- pass rolling, is rolled down to thickness to unload volume after 0.32mm, and middle finishing mill specification is φ 150/450*500mm, is used
Full oil rolling, mill speed 360m/min, gloss level of roll are less than 0.25um;Step(12)In:By step(11)Middle finish rolling
The band volume that thickness is 0.32mm afterwards is annealed using air cushion furnace, and specific annealing process is:Uncoiling → alkali cleaning → kink → heating
Stove → cooling furnace → pickling → passivation → drying → kink → winding, wherein, heating furnace uses electrical heating, heating-up temperature 700
DEG C, cooling furnace is cooled down using wind turbine, rotation speed of fan 1300rpm, and using sulfuric acid washing, h 2 so 4 concentration 8-10%, uses
Liquid passivator is passivated, and drying temperature is 90 DEG C, and whole annealing speed is 55m/min.
Further improved as of the invention, step(13)In:By step(12)Thickness is the band of 0.32mm after annealing three times
Volume carries out multi- pass rolling, is rolled down to thickness to unload volume after 0.2mm, finishing mill specification is φ 150/450*500mm, using full oil
Rolling, mill speed 180-270m/min, roll surface roughness 0.1-0.12um;Step(14)In:By step(13)
The band volume that smart outgoing gauge is 0.2mm is annealed using air cushion furnace, and specific annealing process is:Uncoiling → alkali cleaning → kink → add
Hot stove → cooling furnace → pickling → passivation → drying → kink → winding, wherein, heating furnace uses electrical heating, and heating-up temperature is
700 DEG C, cooling furnace is cooled down using wind turbine, and rotation speed of fan 1300rpm, using sulfuric acid washing, h 2 so 4 concentration 10%, is adopted
It is passivated with liquid passivator, drying temperature is 90 DEG C, and whole annealing speed is 65m/mi n;Step(15)In:Will be through step
Suddenly(14)Band after four annealing involves in performing check delivery.
Beneficial effect
Using technical solution provided by the invention, compared with prior art, there is following remarkable result:
(1)A kind of mirror copper band production technology for button fabric product of the present invention, in step(11)And step(13)In, copper
The rolling mill roll that band uses first refines roller surface using high precision numerical control roll grinder, then puts into milling train to copper strips
Rolled, copper strips is directly contacted by roller surface, the surface of copper strips is ground, avoided in cleaning process using brush
Roller grinding causes to grind phenomenon that is uneven and producing brush mark, and the roller surface after refining is ground copper strips, can be more preferable
Ground controls copper strip surface quality, reduces the generation of surface brush mark, and step of the present invention(11)Middle gloss level of roll is less than 0.25um,
Step(13)Middle roll surface roughness is 0.1-0.12um, and the design of the roll surface roughness can ensure what is finally obtained
Copper strips, its surface roughness is between 0.08 um -0.12 um, so as to ensure that its surface quality meets minute surface requirement.
(2)A kind of mirror copper band production technology for button fabric product of the present invention, its step(12)And step(14)
In, hardening is processed to the band volume after rolling using air cushion furnace and is eliminated, specific annealing process is:Uncoiling → alkali cleaning → kink →
Heating furnace → cooling furnace → pickling → passivation → drying → kink → winding.It should be noted that:The annealing temperature of general air cushion furnace
Degree is related with its equipment quality, and therefore, most important parameter setting is whole annealing speed in air cushion furnace annealing whole process, should
Annealing speed cannot be excessive, otherwise the copper strips through air cushion furnace annealing can be caused not to be heated to its recrystallization temperature, makes it be difficult to send out
Life so as to cannot also eliminate its processing hardening, and then is difficult to next process in recrystallization process;But the annealing temperature
Can not be too small, it otherwise can cause the copper strips coarse grains through air cushion furnace annealing, so that the roughness of copper strip surface is excessive,
Meanwhile the intensity, plasticity and toughness of copper strips can be also caused to reduce.The above analysis, in air cushion furnace annealing process, whole process annealing
Speed is suitable, and theory analysis is theory analysis eventually, although that is, we can learn said circumstances by theory analysis
Generation, but in the actual production process, we will not only have theory analysis, it is also necessary to practice behaviour is carried out on the basis of theory
Make, and then just can determine that the occurrence of whole annealing speed, although theory analysis has given certain base that we solve the problems, such as
Plinth, but due to affected by many factors in practice process so that whole operation process is not that very smoothly applicant passes through length
The production practices of phase finally determine step in the present invention(12)And step(14)Whole annealing speed be respectively 55m/min,
65m/min, the setting of the whole process annealing speed is so that the copper strips that final production obtains, its performance meets HV75-85, so that in property
Can on meet the production requirement of button fabric product.
(3)A kind of mirror copper band production technology for button fabric product of the present invention, in step(7)Once clean and walk
Suddenly(10)It is processed by shot blasting in secondary cleaning, is specially:Step(7)Polished in once cleaning using 240 mesh sub-thread wire brush,
Bristle material is carborundum, and polishing rotating speed is 600 r/min, cleaning speed 30m/min;Step(10)Used in secondary cleaning
1000 mesh multiply wire brush polish, and bristle material is aluminium oxide, and polishing rotating speed is 900 r/min, cleaning speed 80m/min.Need
To illustrate that:Generally all it is processed by shot blasting in the prior art using nylon bruss, and nylon yarn is too soft, it is impossible to dispose copper strips
Stain on surface etc., after applicant is in view of present in above-mentioned nylon bruss the defects of, by long-term production practices and theory
Analysis is found:In step(7)Polished in once cleaning using 240 mesh sub-thread wire brush, in step(10)Used in secondary cleaning
1000 mesh multiply wire brush polish, and can effectively remove the stain of copper strip surface, it is ensured that copper strip surface cleans, and step(10)It is secondary clear
Bristle material in washing is aluminium oxide, which is that applicant gropes to be obtained by long-term pilot production, choosing
The stain of copper strip surface can be removed with the oxidation aluminium material, also copper strip surface will not be caused to damage.
(4)A kind of mirror copper band production technology for button fabric product of the present invention, when draw-casting machine carries out cast copper ingot,
When the content of lead in copper water is less than 150ppm, casting speed 17rpm, cooling water pressure 0.2Mpa;When the content of lead in copper water
More than 150ppm and it is less than 200ppm, casting speed 14rpm, cooling water pressure 0.25Mpa.It should be noted that:Long-term
Knowhow makes applicant have determined that the content of lead is easily produced no more than 200 ppm in the ingot casting that otherwise cast goes out in copper water
Bubble, therefore lead amount contained in copper water is strict controlled in 200ppm by the present invention, but found by follow-up practice operation, i.e.,
The content of lead is set to have controlled in 200ppm, the defects of ingot casting that cast goes out still has bubble, is mingled with, applicant is again at this time
The stage without any idea is absorbed in, because applicant does not know that the lead content control set before is problematic, or other links
Cooperation goes wrong, and applicant has found by follow-up long-term production practices and theory analysis, and the content control of lead is existed
Have no problem in 200ppm, problem is that the content for being directed to lead in 200ppm needs to be divided into several regions, and several for this
A region sets casting speed value and cooling water pressure value respectively, and after this direction is determined, applicant regains confidence again, continues to throw
Body finally draws this technological achievement in experiment:When the content of lead in copper water is less than 150ppm, casting speed 17rpm is cold
But hydraulic pressure is 0.2Mpa;When the content of lead in copper water is more than 150ppm and is less than 200ppm, casting speed 14rpm, cooling water
Press as 0.25Mpa.By being applied to this technological achievement in the mirror copper band production technology of button fabric product, effectively increase
Ingot quality, lays a good foundation for the production of mirror copper band.
Embodiment
To further appreciate that present disclosure, with reference to embodiment, the present invention is described in detail.
Embodiment 1
A kind of mirror copper band production technology for button fabric product of the present embodiment, its step are as follows:
(1)Melting ingot casting;(2)Sawing;(3)Hot rolling;(4)Milling face;(5)Roughing, wherein, the specific thickness with volume after roughing is
2.5mm;(6)Once anneal;(7)Once clean;(8)In roll;(9)Double annealing;(10)Secondary cleaning;(11)Middle finish rolling;
(12)Anneal three times;(13)Finish rolling;(14)Four annealing;(15)Examine and deliver.
Step(1)In:By electrolytic copper plate and zinc ingot metal according to the ingredient standard of H65 brass it is weighted after, according to two kinds of materials
Fusing point it is different, first cathode copper is added in copper water stove after carrying out heating fusing, then zinc ingot metal is added and is melted, is pressed during melt copper
Refining agent and coverture are added in as requested, and refining agent refines slag-cleaning agent for copper alloy, and coverture is rice bran, by stirring, dragging for slag
After component is examined, when the copper water temperature of fusing to be adjusted is 1030-1080 DEG C, then the copper water melted in copper water stove is passed through into flow tube
Body is poured into water mold, uses special draw-casting machine cast to go out ingot casting of the thickness for 260mm, in order to protect during cast
For card slab quality, it is necessary to be covered using dry borax to copper water, guarantee cc billet surface quality, no slag inclusion, stomata etc. is abnormal,
And during draw-casting machine progress cast copper ingot, when the content of lead in copper water is less than 150ppm, casting speed 17rpm, cooling water pressure is
0.2Mpa;When the content of lead in copper water is more than 150ppm and is less than 200ppm, casting speed 14rpm, cooling water pressure is
0.25Mpa。
It should be noted that:Long-term knowhow make applicant have determined that in copper water the content of lead no more than 200 ppm,
Otherwise bubble is easily produced in the ingot casting that cast goes out, therefore lead amount contained in copper water is strict controlled in 200ppm by the present invention
It is interior, but find that, even if the content of lead has been controlled in 200ppm, the ingot casting that cast goes out still has by follow-up practice operation
Bubble, the defects of being mingled with, applicant is absorbed in the stage without any idea again at this time, because applicant does not know that the lead set before contains
Amount control is problematic, or the cooperation of other links goes wrong, and applicant is by follow-up long-term production practices and theoretical point
Analysis finds that control the content of lead has no problem in 200ppm, and problem is that the content for being directed to lead in 200ppm needs to draw
It is divided into several regions, and casting speed value and cooling water pressure value is set respectively for these regions, after this direction is determined,
Applicant regains confidence again, continues to throw oneself into experiment, finally draws this technological achievement:When the content of lead in copper water is less than
150ppm, casting speed 17rpm, cooling water pressure 0.2Mpa;When the content of lead in copper water is more than 150ppm and is less than
200ppm, casting speed 14rpm, cooling water pressure 0.25Mpa.By the way that this technological achievement is applied to button fabric product
In mirror copper band production technology, ingot quality is effectively increased, is laid a good foundation for the production of mirror copper band.
It should be further stated that:Flow tube body includes linkage section, changeover portion and inserts successively from top to bottom in the present invention
Enter section, wherein, linkage section is up-small and down-big truncated cone-shaped structure, and the first inlet opening and the second feed liquor are provided with the flow tube body
Hole, wherein, the axial direction of the first inlet opening along flow tube body sequentially passes through linkage section, the inside of changeover portion to inserting paragraph, but does not pass through
Wear inserting paragraph.It should be noted that:Applicant is sent out when designing the first inlet opening based on long-term production practices and theory analysis
Existing, it is to have certain associated, applicant that the brass ingot quality that final cast goes out enters in crystallizer with copper water along which direction
Continuous by later experiments is explored, and finally found that copper water cannot be directly entered in crystallizer along vertical direction, because this meeting
Cause the middle part in crystallizer and circumference copper water cooling velocity to differ larger, ultimately result in the brass inside ingot that cast goes out
Easily there are stomata, be mingled with the defects of, therefore, the first inlet opening and not through inserting paragraph in the present invention, so as to eliminate copper water stream
The fashionable impact to casting liquid cave, shortens liquid point depth, so as to reduce solidification transition region, and then ensure the middle part in crystallizer and
Circumference copper water cooling velocity is not much different, and improves the quality of brass ingot casting.
Second inlet opening is connected with the first inlet opening, which extends radially through inserting paragraph along flow tube body,
And second inlet opening is at least a pair, the central axes of the second inlet opening of each pair are respectively positioned on same straight line;It should be noted that:
Applicant has found by long-term production practices and theory analysis, if copper water enters in crystallizer in the horizontal direction, is conducive to change
The quality of kind brass ingot casting, therefore the second inlet opening extends radially through inserting paragraph design along flow tube body in the present invention, ensures the
The glacing flatness of two inlet openings, so that copper water can be flowed into crystallizer in the horizontal direction, secondly, the second feed liquor in the present invention
Hole is at least a pair, and the central axes of the second inlet opening of each pair are respectively positioned on same straight line, in order to ensures from flow tube sheet
The copper water that body is flowed into crystallizer is evenly distributed in crystallizer, further improves the quality of brass ingot casting.Specifically in this implementation
In example, a diameter of 7-9mm of the second inlet opening, and the second inlet opening is two pairs, it is straight where the central axes of two pair of second inlet opening
Angle between line is α, which is preferably sized to 35-45 degree, diameter, the second inlet opening of the second inlet opening of the above 132
132 logarithm and angle α be designed with beneficial to when reducing or eliminating casting crystalline because solidification transition region is long or unbalanced and
The internal shrinkage phenomenon of generation, so as to significantly improve the quality of brass ingot casting, meets the production requirement of brass ingot casting.
Sprue gate is provided with copper water stove, above-mentioned linkage section is connected in sprue gate, the lower part insertion knot of above-mentioned inserting paragraph
In copper liquid in brilliant device, and above-mentioned second inlet opening is immersed in the copper liquid in crystallizer.It should be noted that:During casting, stream
Inserting paragraph 13 on tube body 1, its underpart need to be inserted into the copper liquid in crystallizer, and require the second feed liquor in flow tube body 1
Hole 132 is completely submerged in the copper liquid in crystallizer, so that impact when copper water flows into casting liquid cave be reduced or eliminated, is shortened
Liquid point depth, so as to reduce solidification transition region, and then ensures that the middle part in crystallizer and circumference copper water cooling velocity are not much different,
Improve the quality of big specification brass ingot casting.Specifically in the present embodiment, the liquid level of copper water is kept with crystallizer opening's edge in crystallizer
1-2cm, and the depth of the lower part insertion copper water of inserting paragraph keeps 1-2cm, so that it is guaranteed that liquid level is steady during cast, into
And can ensure copper water benign crystallization in crystallizer, castability is lifted, at the same time, it is contemplated that to meet above-mentioned condition, this hair
It is bright middle the not perforative inserting paragraph Partial Height of first inlet opening to be designed as 13-17mm.
Pass through rationally matching somebody with somebody between the design of above flow tube body construction, and copper water stove, crystallizer, flow tube body three
The defects of closing, the internal shrinkage of brass ingot casting, stomata can be effectively eliminated, be mingled with, while can also ensure copper water in crystallizer
Benign crystallization, significantly improves the quality of brass ingot casting, further lays a good foundation for the production of mirror copper band.
Step(2)In:To step(1)The ingot casting that middle thickness is 260mm carries out sawing, and sawing length in head is controlled in 8-
10cm, afterbody sawing length are controlled in 20-25cm.It should be noted that:Head, the control range of afterbody sawing length are set both
It can guarantee that second-rate part can be removed, while can also at utmost retain the amount of ingot casting, saved production cost.
Step(3)In:Will be through step(2)Ingot casting after sawing, which is sequentially added in stepping furnace, to be heated, between ingot blank stepping
Away from for 574mm, stepping rate 27648mm/min so that after ingot casting temperature reaches 870 DEG C when ingot casting heating 5 is small, into two rollers
Hot-rolling mill carries out multi- pass rolling, and hot-rolling mill specification is φ 650*650mm, mill speed 100m/min, and hot-rolling mill, which cools down, to be used
Emulsion cools down, and emulsion mass concentration is 0.3%, online water cooling is carried out after ingot rolling to 17.0mm, finally using five rollers
Centreless coiler batches discharging.It should be noted that:In the present invention setting of ingot blank stepping spacing and stepping rate be in order to
Ensure that the hot-fluid in stepping furnace can form good convection effects so that ingot blank it is heated evenly.
Step(4)In:By step(3)The made-up belt that hot outgoing gauge is 17.0mm carries out milling using milling machine to its upper and lower surface
Cut, Milling Speed 5m/min, made-up belt upper and lower surface milling amount is each 0.8mm, and milling rear surface roughness is controlled in 1.6Ra/
Within um.It should be noted that:Applicant has found by long-term production practices and theory analysis, when made-up belt upper and lower surface milling
When amount is respectively 0.8mm, oxide skin can be completely eliminated, moreover it is possible to save production cost.
To melting ingot casting elder generation milling face, hot rolling is Normal practice in copper plate/strip production craft step again in the prior art, this hair
Bright middle applicant breaks the normal procedure, and the processing step taken is first hot rolling milling face again, can be by the oxidation after hot rolling by this way
The surface quality defects such as skin are thoroughly removed so that the surface after hot rolling is brighter and cleaner.
Step(5)In:Will be through step(4)The made-up belt of 15.4mm carries out multi-pass roughing behind milling face, is unloaded after being rolled down to 2.5mm
Volume, roughing mill specification are φ 250/450*500mm, mill speed 180m/min, and roughing mill uses emulsion lubrication, quality of the emulsion
Concentration is 3%.
Step(6)In:By step(5)The band volume that thick outgoing gauge is 2.5mm is annealed using bell-type annealing furnace, is had
Body annealing process is:By 2.5mm band volume input bell furnace in, by 3.5 it is small when be warming up to 480 DEG C, then keep the temperature 5 it is small when, protect
Room temperature taking-up is furnace-cooled to after temperature.
Step(7)In:By step(6)The band volume that thickness after once annealing is 2.5mm is successively using pickling → clear water punching
Wash → polish → mode of hot water injection → passivation → drying → winding handled, wherein, using sulfuric acid washing, sulfuric acid quality
Concentration is 12%;Polished using 240 mesh sub-thread wire brush, bristle material is carborundum, and polishing rotating speed is 600 r/min, cleaning speed
For 30m/min.
Step(8)In:By step(7)The band volume that thickness is 2.5mm after once cleaning carries out multi- pass rolling, is rolled down to thickness
Spend to unload volume after 0.6mm, middle milling train specification is φ 260/450*500mm, is rolled using full oil, mill speed 240m/min.
Step(9)In:By step(8)The band volume that middle outgoing gauge is 0.6mm is annealed using bell-type annealing furnace, is had
Body annealing process is:Will with volume put into bell furnace in after, by 3.5 it is small when be warming up to 460 DEG C, then keep the temperature 5 it is small when, insulation knot
Room temperature taking-up is furnace-cooled to after beam.
Step(10)In:By step(9)The band volume that thickness is 0.6mm after double annealing is rinsed using pickling → clear water successively
The mode of → polishing → hot water injection → passivation → drying → winding is handled, wherein, using sulfuric acid washing, sulfuric acid quality is dense
Spend for 8%;Polished using 1000 mesh multiply wire brush, bristle material is aluminium oxide, and polishing rotating speed is 900 r/min, and cleaning speed is
80m/min;Temperature is used to carry out hot water injection for 70 DEG C of water;It is passivated using liquid passivator.
Step(11)In:By step(10)The band volume that thickness is 0.6 mm after secondary cleaning carries out multi- pass rolling, rolling
Volume is unloaded after being 0.32mm to thickness, middle finishing mill specification is φ 150/450*500mm, is rolled using full oil, mill speed is
360m/min, gloss level of roll are less than 0.25um.
Step(12)In:By step(11)The band volume that middle essence outgoing gauge is 0.32mm is annealed using air cushion furnace, is had
Body annealing process is:Uncoiling → alkali cleaning → kink → heating furnace → cooling furnace → pickling → passivation → drying → kink → winding,
Wherein, heating furnace uses electrical heating, and heating-up temperature is 700 DEG C, and cooling furnace is cooled down using wind turbine, and rotation speed of fan 1300rpm, is adopted
With sulfuric acid washing, h 2 so 4 concentration 8-10%, is passivated using liquid passivator, and drying temperature is 90 DEG C, whole process annealing
Speed is 55m/min.
Step(13)In:By step(12)The band volume that thickness is 0.32mm after annealing three times carries out multi- pass rolling, rolling
Volume is unloaded after being 0.2mm to thickness, finishing mill specification is φ 150/450*500mm, is rolled using full oil, mill speed 180-
270m/min, roll surface roughness 0.1-0.12um.
Step(14)In:By step(13)The band volume that smart outgoing gauge is 0.2mm is annealed using air cushion furnace, is specifically moved back
Fiery process is:Uncoiling → alkali cleaning → kink → heating furnace → cooling furnace → pickling → passivation → drying → kink → winding, wherein,
Heating furnace uses electrical heating, and heating-up temperature is 700 DEG C, and cooling furnace is cooled down using wind turbine, rotation speed of fan 1300rpm, using sulphur
Pickling, h 2 so 4 concentration 10%, is passivated using liquid passivator, and drying temperature is 90 DEG C, and whole annealing speed is
65m/min。
Step(15)In:Will be through step(14)Band after four annealing involves in performing check delivery.
In step in the present embodiment(7)Once cleaning and step(10)It is processed by shot blasting in secondary cleaning, is specially:
Step(7)Being polished in once cleaning using 240 mesh sub-thread wire brush, bristle material is carborundum, and polishing rotating speed is 600 r/min,
Cleaning speed is 30m/min;Step(10)Being polished in secondary cleaning using 1000 mesh multiply wire brush, bristle material is aluminium oxide,
Polishing rotating speed is 900 r/min, cleaning speed 80m/min.It should be noted that:Generally all use nylon bruss in the prior art
It is processed by shot blasting, and nylon yarn is too soft, it is impossible to stain of copper strip surface etc. is disposed, applicant is in view of above-mentioned nylon bruss
After the defects of existing, found by long-term production practices and theory analysis:In step(7)240 mesh are used in once cleaning
Sub-thread wire brush polishes, in step(10)Polished in secondary cleaning using 1000 mesh multiply wire brush, can effectively remove copper strip surface
Stain, it is ensured that copper strip surface cleans, and step(10)Bristle material in secondary cleaning is aluminium oxide, which is Shen
Ask someone to grope what is obtained by long-term pilot production, select the oxidation aluminium material to remove the stain of copper strip surface, also
Copper strip surface will not be caused to damage.And step(12)Annealing and step three times(14)Four times annealing in without polishing at
Reason, reason is to polish the roughness that can influence copper strip surface, and then influences its surface quality.
In step in the present embodiment(7)Once cleaning, step(10)Secondary cleaning, step(12)Annealing and step three times
(14)Pickling is carried out using sulfuric acid in four annealing, is passivated using liquid passivator, copper strip roll surface shape is removed in pickling
Into oxide layer;Processing is passivated to copper strip roll surface, assigns copper strip roll corrosion resistance of surface.It should be noted that:The present invention
Be passivated using non-BTA passivation liquid system, the copper ion on passivating solution and copper surface react to each other copper-base current potential from negative direction to
Positive direction quickly moves, and polarization resistance increases rapidly, the copper film material of densification is quickly formd, so as to extremely efficiently to copper
Strip is passivated, which eliminates BTA passivation can produce one layer " white haze " " in vain in passivation copper strip surface
Phenomena such as point " non-uniform " flower of shedding tears ";The solubility solved at the same time because of BTA passivation in water is extremely low, when being directly added into, meeting
The bad phenomenon of the passivation effect that produces its solution chemistry uneven components as solute and produce, ensures copper strip surface cleaning
Degree.
In step in the present embodiment(11)And step(13)In, the rolling mill roll that copper strips uses first uses high precision numerical control
Roll grinder refines roller surface, then puts into milling train and copper strips is rolled, and copper strips is directly contacted by roller surface,
The surface of copper strips is ground, avoids to grind using brush roll in cleaning process and causes to grind uneven and generation brush mark show
As, and the roller surface after refining is ground copper strips, can better control over copper strip surface quality, reduces the production of surface brush mark
It is raw, and step(11)Middle gloss level of roll is less than 0.25um, step(13)Middle roll surface roughness is 0.1-0.12um, this is rolled
The design of roll surface roughness can ensure the copper strips finally obtained, its surface roughness between 0.08 um -0.12 um it
Between, so as to ensure that its surface quality meets minute surface requirement.
In step in the present embodiment(3)Hot rolling and step(5)The rolling mill roll of each process uses various concentrations in roughing
Emulsion is cooled down or lubricated, this process is effectively guaranteed the surface quality of copper strip roll, while improves the work of milling train
Efficiency, and step(8)In roll, step(11)Middle finish rolling and step(13)The rolling mill roll of each process is rolled using full oil in finish rolling
System, since full oil rolling has good lubricity, cooling and annealing spatter property, so that copper strip surface is brighter
It is bright and clean.
It is well known that in cold working since processing temperature is low, metal produces different degrees of processing in process
Hardening, so as to cause, the resistance of deformation of metal increases and plasticity reduces.Processing hardening is due to metal in plastic deformation, crystal grain
Slide, the entanglement of dislocation occur, elongate crystal grain, broken and fibrosis, metal inside generate residual stress etc., when adding
After work hardening exceedes to a certain degree metal will because it is undue hard it is crisp be unsuitable for continuing cold working.Need to carry out by process annealing soft
Change or recrystallize, its is recovered plasticity, resistance of deformation is reduced, to carry out follow-up cold working.Therefore processing hardening is eliminated, is
It is vital to continue to treat product treatment.Annealing is a kind of metal heating processing technology, refers to metal being heated slowly to
Its recrystallization temperature, is kept enough time, is then cooled down with Reasonable Speed, and then can eliminate processing hardening.In the present embodiment
Step(12)And step(14)In, hardening is processed to the band volume after rolling using air cushion furnace and is eliminated, specific annealing process is:
Uncoiling → alkali cleaning → kink → heating furnace → cooling furnace → pickling → passivation → drying → kink → winding.It should be noted that:
The annealing temperature of general air cushion furnace is related with its equipment quality, and therefore, most important parameter is set in air cushion furnace annealing whole process
It is whole annealing speed to put, which cannot be excessive, otherwise the copper strips through air cushion furnace annealing can be caused not to be heated to it again
Crystallization temperature, makes it be difficult to happen in recrystallization process, so as to cannot also eliminate its processing hardening, and then is difficult to next
Procedure;But the annealing temperature can not be too small, the copper strips coarse grains through air cushion furnace annealing otherwise can be caused, so that copper
The roughness of belt surface is excessive, meanwhile, can also cause the intensity, plasticity and toughness of copper strips reduces.The above analysis, air cushion furnace
In annealing process, whole annealing speed is suitable, and theory analysis is theory analysis eventually, although that is, we can pass through reason
The generation of said circumstances is learnt by analysis, but in the actual production process, we will not only have theory analysis, it is also necessary in theory
On the basis of carry out practice operation, and then the occurrence of whole annealing speed is just can determine that, although theory analysis has given me
Certain basis for solving the problems, such as, but due to affected by many factors in practice process so that whole operation process is not
Very smoothly, applicant finally determines step in the present invention by long-term production practices(12)And step(14)Whole annealing speed
Degree is respectively 55m/min, 65m/min, and the setting of the whole process annealing speed is so that the copper strips that final production obtains, its performance meet
HV75-85, so as to meet the production requirement of button fabric product in performance.
Secondly as belt tension during mill milling so that copper strips is higher per interlayer compactness, that is, causes interlayer gapless,
So when carrying out next procedure annealing by bell furnace, easily there is bonding phenomenon, be unfavorable for the progress of annealing process, that is, be difficult to
Eliminate the residual stress in copper strips.And the present invention anneals by using air cushion furnace so that zone face will not be sent out in annealing process
Raw bonding phenomenon, further improves annealing quality, and uses air cushion furnace annealing, may be such that crystal grain is more uniform, performance is more steady
It is fixed, so as to meet the production requirement of button fabric product.
A kind of mirror copper band production technology for button fabric product of the present invention, each step are all linked with one another, progressive
And the reasonable setting of each process parameter, just so that the copper strips of production, its surface roughness is between 0.08 um -0.12
Um, its Vickers hardness is 75-85, so that meet the production requirement of button fabric product, meanwhile, reduce workshop cost, improve production
Profit.
Claims (7)
1. a kind of mirror copper band production technology for button fabric product, it is characterised in that its step is as follows:(1)Melting ingot casting;
(2)Sawing;(3)Hot rolling;(4)Milling face;(5)Roughing, wherein, the specific thickness with volume after roughing is 2.5mm;(6)Once anneal;
(7)Once clean;(8)In roll;(9)Double annealing;(10)Secondary cleaning;(11)Middle finish rolling;(12)Anneal three times;(13)Essence
Roll;(14)Four annealing;(15)Examine and deliver.
A kind of 2. mirror copper band production technology for button fabric product according to claim 1, it is characterised in that step
(1)In:By electrolytic copper plate and zinc ingot metal according to the ingredient standard of H65 brass it is weighted after, it is different according to the fusing point of two kinds of materials, first
Cathode copper is added in copper water stove after carrying out heating fusing, then zinc ingot metal is added and is melted, addition is smart as requested during melt copper
Agent and coverture are refined, refining agent refines slag-cleaning agent for copper alloy, and coverture is rice bran, after stirring, dragging for slag ingredient inspection, treats
When the copper water temperature of adjustment fusing is 1030-1080 DEG C, then the copper water melted in copper water stove is poured into water cooling by flow tube body
In crystallizer, special draw-casting machine cast is used to go out ingot casting of the thickness for 260mm, in order to ensure slab quality during cast,
Need to cover copper water using dry borax, ensure that cc billet surface quality, no slag inclusion, stomata etc. is abnormal, and draw-casting machine carries out
During cast copper ingot, when the content of lead in copper water is less than 150ppm, casting speed 17rpm, cooling water pressure 0.2Mpa;Work as copper water
The content of middle lead is more than 150ppm and is less than 200ppm, casting speed 14rpm, cooling water pressure 0.25Mpa;Step(2)In:
To step(1)The ingot casting that middle thickness is 260mm carries out sawing, and sawing length in head is controlled in 8-10cm, afterbody sawing length control
System is in 20-25cm.
A kind of 3. mirror copper band production technology for button fabric product according to claim 2, it is characterised in that step
(3)In:Will be through step(2)Ingot casting after sawing, which is sequentially added in stepping furnace, to be heated, and ingot blank stepping spacing is 574mm, step
It is 27648mm/min into speed so that after ingot casting temperature reaches 870 DEG C when ingot casting heating 5 is small, carried out into two roller hot-rolling mills more
Passes, hot-rolling mill specification are φ 650*650mm, and mill speed 100m/min, hot-rolling mill cooling is cooled down using emulsion, newborn
It is 0.3% to change liquid mass concentration, and online water cooling is carried out after ingot rolling to 17.0mm, is finally rolled up using five roller centreless coilers
Charge and discharge;Step(4)In:By step(3)The made-up belt that hot outgoing gauge is 17.0mm carries out milling using milling machine to its upper and lower surface
Cut, Milling Speed 5m/min, made-up belt upper and lower surface milling amount is each 0.8mm, and milling rear surface roughness is controlled in 1.6Ra/
Within um;Step(5)In:Will be through step(4)The made-up belt of 15.4mm carries out multi-pass roughing behind milling face, is unloaded after being rolled down to 2.5mm
Volume, roughing mill specification are φ 250/450*500mm, mill speed 180m/min, and roughing mill uses emulsion lubrication, quality of the emulsion
Concentration is 3%.
A kind of 4. mirror copper band production technology for button fabric product according to claim 3, it is characterised in that step
(6)In:By step(5)The band volume that thick outgoing gauge is 2.5mm is annealed using bell-type annealing furnace, specific annealing process
For:By 2.5mm band volume input bell furnace in, by 3.5 it is small when be warming up to 480 DEG C, then keep the temperature 5 it is small when, stove after insulation
It is cooled to room temperature taking-up;Step(7)In:By step(6)The band volume that thickness after once annealing is 2.5mm is successively using pickling → clear
The mode of water flushing → polishing → hot water injection → passivation → drying → winding is handled, wherein, using sulfuric acid washing, sulfuric acid
Mass concentration is 12%;Polished using 240 mesh sub-thread wire brush, bristle material is carborundum, and polishing rotating speed is 600 r/min, cleaning
Speed is 30m/min.
A kind of 5. mirror copper band production technology for button fabric product according to claim 4, it is characterised in that step
(8)In:By step(7)The band volume that thickness is 2.5mm after once cleaning carries out multi- pass rolling, is rolled down to thickness as after 0.6mm
Volume is unloaded, middle milling train specification is φ 260/450*500mm, is rolled using full oil, mill speed 240m/min;Step(9)In:Will
Step(8)The band volume that middle outgoing gauge is 0.6mm is annealed using bell-type annealing furnace, and specific annealing process is:Will be with volume
Put into bell furnace in after, by 3.5 it is small when be warming up to 460 DEG C, then keep the temperature 5 it is small when, be furnace-cooled to after insulation room temperature taking-up;
Step(10)In:By step(9)After double annealing thickness be 0.6mm band volume successively using pickling → clear water flushing → polishing →
The mode of hot water injection → passivation → drying → winding is handled, wherein, using sulfuric acid washing, h 2 so 4 concentration 8%;
Polished using 1000 mesh multiply wire brush, bristle material is aluminium oxide, and polishing rotating speed is 900 r/min, cleaning speed 80m/
min;Temperature is used to carry out hot water injection for 70 DEG C of water;It is passivated using liquid passivator.
A kind of 6. mirror copper band production technology for button fabric product according to claim 5, it is characterised in that step
(11)In:By step(10)The band volume that thickness is 0.6 mm after secondary cleaning carries out multi- pass rolling, and being rolled down to thickness is
Volume is unloaded after 0.32mm, middle finishing mill specification is φ 150/450*500mm, is rolled using full oil, mill speed 360m/min, rolls
Roller roughness is less than 0.25um;Step(12)In:By step(11)The band volume that middle essence outgoing gauge is 0.32mm uses air cushion furnace
Anneal, specific annealing process is:Uncoiling → alkali cleaning → kink → heating furnace → cooling furnace → pickling → passivation → drying →
Kink → winding, wherein, heating furnace uses electrical heating, and heating-up temperature is 700 DEG C, and cooling furnace is cooled down using wind turbine, rotation speed of fan
For 1300rpm, using sulfuric acid washing, h 2 so 4 concentration 8-10% is passivated using liquid passivator, and drying temperature is
90 DEG C, whole annealing speed is 55m/min.
A kind of 7. mirror copper band production technology for button fabric product according to claim 6, it is characterised in that step
(13)In:By step(12)The band volume that thickness is 0.32mm after annealing three times carries out multi- pass rolling, and it is 0.2mm to be rolled down to thickness
After unload volume, finishing mill specification is φ 150/450*500mm, using it is full oil roll, mill speed 180-270m/min, roll table
Surface roughness is 0.1-0.12um;Step(14)In:By step(13)Smart outgoing gauge be 0.2mm band volume using air cushion furnace into
Row annealing, specific annealing process are:Uncoiling → alkali cleaning → kink → heating furnace → cooling furnace → pickling → passivation → drying → work
Set → winding, wherein, heating furnace uses electrical heating, and heating-up temperature is 700 DEG C, and cooling furnace is cooled down using wind turbine, and rotation speed of fan is
1300rpm, using sulfuric acid washing, h 2 so 4 concentration 10%, is passivated using liquid passivator, and drying temperature is 90 DEG C,
Whole annealing speed is 65m/mi n;Step(15)In:Will be through step(14)Band after four annealing involves in performing check delivery.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201711477279.2A CN107971711A (en) | 2017-12-29 | 2017-12-29 | A kind of mirror copper band production technology for button fabric product |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201711477279.2A CN107971711A (en) | 2017-12-29 | 2017-12-29 | A kind of mirror copper band production technology for button fabric product |
Publications (1)
Publication Number | Publication Date |
---|---|
CN107971711A true CN107971711A (en) | 2018-05-01 |
Family
ID=62005288
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201711477279.2A Pending CN107971711A (en) | 2017-12-29 | 2017-12-29 | A kind of mirror copper band production technology for button fabric product |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN107971711A (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110117728A (en) * | 2019-05-29 | 2019-08-13 | 安徽楚江科技新材料股份有限公司 | A kind of melting scalping process of copper ingot |
CN110722012A (en) * | 2019-09-16 | 2020-01-24 | 铜陵有色金属集团股份有限公司 | Method for effectively preventing interlayer contusion of metal strips in metal strip processing |
CN111618094A (en) * | 2020-04-24 | 2020-09-04 | 太原晋西春雷铜业有限公司 | Process method for solving problem of rough silver-plated surface of copper alloy belt for automobile lamp |
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 |
CN113083897A (en) * | 2021-04-07 | 2021-07-09 | 太原晋西春雷铜业有限公司 | Preparation method of high-uniformity surface of copper or copper alloy strip |
CN113798782A (en) * | 2020-06-16 | 2021-12-17 | 安徽金池新材料有限公司 | Process production technology of copper strip with low roughness and high quality surface |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102069353A (en) * | 2010-12-25 | 2011-05-25 | 安徽鑫科新材料股份有限公司 | Production process for packfong strips |
CN102069354A (en) * | 2010-12-25 | 2011-05-25 | 安徽鑫科新材料股份有限公司 | Production process of tin-copper alloy strip |
CN102658452A (en) * | 2011-11-17 | 2012-09-12 | 中铝洛阳铜业有限公司 | Processing method of copper strip used for copper steel composites |
CN102699024A (en) * | 2012-06-12 | 2012-10-03 | 安徽众源新材料股份有限公司 | Production process of semi-hard soft copper belts |
CN105420647A (en) * | 2015-12-08 | 2016-03-23 | 安徽楚江科技新材料股份有限公司 | Copper belt production technology for new energy automobile connector |
CN105499300A (en) * | 2015-12-18 | 2016-04-20 | 安徽楚江科技新材料股份有限公司 | Production technology of copper strip for lock |
CN105537311A (en) * | 2015-12-08 | 2016-05-04 | 安徽楚江科技新材料股份有限公司 | Production technology of copper strip for automobile contact |
CN107475560A (en) * | 2017-08-12 | 2017-12-15 | 徐高杰 | A kind of golden yellow copper-base simulant gold alloy and preparation method thereof |
-
2017
- 2017-12-29 CN CN201711477279.2A patent/CN107971711A/en active Pending
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102069353A (en) * | 2010-12-25 | 2011-05-25 | 安徽鑫科新材料股份有限公司 | Production process for packfong strips |
CN102069354A (en) * | 2010-12-25 | 2011-05-25 | 安徽鑫科新材料股份有限公司 | Production process of tin-copper alloy strip |
CN102658452A (en) * | 2011-11-17 | 2012-09-12 | 中铝洛阳铜业有限公司 | Processing method of copper strip used for copper steel composites |
CN102699024A (en) * | 2012-06-12 | 2012-10-03 | 安徽众源新材料股份有限公司 | Production process of semi-hard soft copper belts |
CN105420647A (en) * | 2015-12-08 | 2016-03-23 | 安徽楚江科技新材料股份有限公司 | Copper belt production technology for new energy automobile connector |
CN105537311A (en) * | 2015-12-08 | 2016-05-04 | 安徽楚江科技新材料股份有限公司 | Production technology of copper strip for automobile contact |
CN105499300A (en) * | 2015-12-18 | 2016-04-20 | 安徽楚江科技新材料股份有限公司 | Production technology of copper strip for lock |
CN107475560A (en) * | 2017-08-12 | 2017-12-15 | 徐高杰 | A kind of golden yellow copper-base simulant gold alloy and preparation method thereof |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110117728A (en) * | 2019-05-29 | 2019-08-13 | 安徽楚江科技新材料股份有限公司 | A kind of melting scalping process of copper ingot |
CN110722012A (en) * | 2019-09-16 | 2020-01-24 | 铜陵有色金属集团股份有限公司 | Method for effectively preventing interlayer contusion of metal strips in metal strip processing |
CN111618094A (en) * | 2020-04-24 | 2020-09-04 | 太原晋西春雷铜业有限公司 | Process method for solving problem of rough silver-plated surface of copper alloy belt for automobile lamp |
CN113798782A (en) * | 2020-06-16 | 2021-12-17 | 安徽金池新材料有限公司 | Process production technology of copper strip with low roughness and high quality surface |
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 |
CN113083897A (en) * | 2021-04-07 | 2021-07-09 | 太原晋西春雷铜业有限公司 | Preparation method of high-uniformity surface of copper or copper alloy strip |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN107971711A (en) | A kind of mirror copper band production technology for button fabric product | |
CN108155281A (en) | A kind of small dimension LED copper strips production technologies | |
CN108057999A (en) | A kind of double strong copper strips production technologies for automotive connector | |
CN105420647B (en) | A kind of copper strips production technology for new-energy automobile connector | |
CN105537311B (en) | A kind of copper strips production technology for automobile contact | |
CN109127762B (en) | Production process of tin brass strip | |
CN109022898A (en) | A kind of production technology of automotive connector one-ton brass band | |
CN109226323A (en) | A kind of cold rolling heat treatment process of tab copper strips | |
CN105798061A (en) | Cold rolling method of ultrathin precise medium-width tinplate substrate of 0.05-0.1 mm with mirror surface light | |
CN111471904B (en) | Processing technology of ultra-wide 6061 aluminum alloy plate for military test detection platform | |
CN108747231A (en) | A kind of production technology of lug copper strips | |
CN105499300A (en) | Production technology of copper strip for lock | |
CN110052900A (en) | A kind of method for grinding improving the new roller initial stage roll surface roughness of breaking-down roll | |
CN109234654A (en) | A kind of processing technology improving tab copper strips buckling performance | |
CN105088257B (en) | A kind of method for reducing blaster fuse frame material surface roughness | |
CN114472523B (en) | Preparation method of high-brightness aluminum plastic film aluminum foil and aluminum plastic film aluminum foil | |
CN106736307A (en) | A kind of high accuracy complexity copper-nickel alloy ternary alloy three-partalloy production technology | |
CN102553920B (en) | Production method of aluminum tape for base of printing plate | |
CN105543518B (en) | A kind of production method of 5182 aluminium alloy draw ring material base material | |
CN107252821B (en) | A kind of hot-rolled structural steel production method that can avoid generating the black steel defect of pickling | |
CN105420544B (en) | A kind of one-ton brass band and preparation method thereof | |
CN102329981B (en) | High-tensile property brass band for lamp holder and production process thereof | |
CN114733910A (en) | Manufacturing method of austenitic stainless steel suitable for surface sand blasting processing | |
KR20140001557A (en) | Method for manufacturing alloy plated steel sheet having excellent surface appearance | |
CN102527719B (en) | Production method of aluminum foil for computer direct composing and printing |
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: 20180501 |