CN102489942A - Manufacturing method for seamless titanium drum for cathode roller - Google Patents
Manufacturing method for seamless titanium drum for cathode roller Download PDFInfo
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- CN102489942A CN102489942A CN2011103827597A CN201110382759A CN102489942A CN 102489942 A CN102489942 A CN 102489942A CN 2011103827597 A CN2011103827597 A CN 2011103827597A CN 201110382759 A CN201110382759 A CN 201110382759A CN 102489942 A CN102489942 A CN 102489942A
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Abstract
The invention relates to a manufacturing method for a seamless titanium drum for a cathode roller. The manufacturing method comprises the steps of: selecting and using a titanium cast ingot block containing the following chemical constitutions in percentage by weight: Fe<0.06, O<0.06, C<0.02, N<0.02, H<0.01, each of other impurity element monomer<0.05 and other element content sum<0.2; chambering and drawing out the selected and used titanium cast ingot block to obtain a titanium drum blank before ring rolling and forming; heating the lathed spun blank, and spinning for 3-4 passes to obtain primarily-formed titanium drum for the cathode roller; and performing annealing heat treatment on the primarily-formed titanium drum for the cathode roller to finally obtain the formed titanium drum for the cathode roller. The titanium drum manufactured by the method provided by the invention through reasonable parameter control has ellipticity of not more than 3mm, diameter tolerance of not more than 2mm, wall thickness tolerance of not more than 0.5mm and microscopic structure metallographic detection grain size of 6-8 level.
Description
Technical field
The invention belongs to the titanium material processing field, specifically is a kind of manufacturing approach of large diameter thin wall seamless Ti tube.
Background technology
Cathode roll is the critical component of electrolytic copper foil equipment, is called as the heart of electrolytic copper foil.Cathode roll roll surface material will have very strong resistance to corrosion to electrolyte on the one hand, and the basis of Copper Foil growth will be provided on the other hand.Therefore require roll surface material corrosion resistance good, good conductivity and conduction are even, and microstructure is evenly tiny, and it is even only in this way could to guarantee to produce thickness, the high-quality Copper Foil of surfacing.Along with the development of manufacture of materials process technology, cathode roll roll surface material has been eliminated traditional stainless steel material at present, and what replace is the stronger pure titanium material of corrosion resistance.And the heterogeneous microstructure uniformity of titanium material is decided by the forming process of material, so the cathode roll roll surface becomes the key of making high-performance Copper Foil equipment with titanium tube manufacturing approach.Because cathode roll titanium tube diameter is generally all more than 1500mm, and wall thickness belongs to large diameter thin wall spare below 20mm.Guarantee geometric accuracy, guarantee the performance of material structure again, there are a lot of difficult points in the manufacturing of cathode roll titanium tube.
Cathode roll titanium tube is normal to adopt two kinds of basic skills manufacturings, a kind ofly is welded into type for titanium sheet material circle, and a kind of is looping mill rolling spare rotary press modelling.Because there is weld seam vertically when being welded into type in circle on the titanium tube, the abnormal belt that exists a weld metal zone to produce on the Copper Foil of producing after the cathode roll assembling influences the Copper Foil total quality, so the cathode roll of seamless Ti tube roll surface easy acceptance by users more.Compare with the titanium tube of girth sheets welding fabrication, seamless Ti tube is made complex manufacturing, parameters of technique process control is strict.The cathode roll roll surface with the subject matter that seamless Ti tube exists is at present:
A, raw material titanium ingot casting composition is required to satisfy the pure titanium of industrial one-level; There is not stricter requirement, because the pure titanium impurity content of one-level exists scope bigger, as stipulating that in GB3620-2007 oxygen element content is less than 0.18%; Iron content is less than 0.20%; Wide in range like this composition requires not only to influence the performance of final titanium tube, and because impurity content causes the variation of titanium material phase transformation point, and then have influence on becoming more meticulous of hot procedure technological parameter.
B, pure titanium large diameter thin wall spare process complicacy relate to a plurality of hot-working and spinning temperature process such as forging punching, reaming, looping mill rolling, and the process parameter variation range is narrow, and process is out of control very easily to cause whole titanium tube quality to descend, even scraps.The shear spinning wall thickness reduction forming process of titanium tube particularly, temperature parameter unreasonable very easily caused defectives such as spinning process titanium tube cracking, buckling deformation, surface peeling.
Summary of the invention
Complicated for overcoming the pure titanium large diameter thin wall spare process that exists in the prior art, the changes in process parameters narrow range is prone to the deficiency that causes whole titanium tube quality to descend, the present invention proposes a kind of cathode roll and uses the seamless Ti tube manufacturing approach.
Detailed process of the present invention is following:
The preparation of step 1, looping mill rolling blank
Titanium ingot casting piece heats in gas furnace, and titanium ingot casting piece is warming up to 550 ℃ of insulations 4 hours; With the programming rate of 80 ℃/h, titanium ingot casting piece is heated to 1020 ℃, be incubated 3 hours; Centre punch diameter at titanium ingot casting piece is the through hole of 250mm; Titanium ingot casting piece after the punching is naturally cooled to room temperature; Polishing is removed the surfaces externally and internally crackle, is scratched defective; The titanium ingot casting piece of handling through polishing places gas furnace to be heated to 550 ℃, and is incubated 4 hours, and the programming rate with 80 ℃/h is heated to 930 ℃ then, and is incubated 2 hours; Through the saddle support reaming aperture of the centre bore of titanium ingot casting piece is expanded to 800mm; Titanium ingot casting piece after reaming shove charge again is heated to 930 ℃, is incubated pulling after 1 hour; Titanium ingot casting piece after reaming and the pulling is naturally cooled to room temperature, obtain the preceding blank of looping mill rolling moulding of titanium tube; Titanium tube blank to obtaining carries out surface finish;
The spinning blank of step 2, looping mill rolling processing titanium tube
Brush one deck waterglass on titanium tube blank surface; Blank before the titanium tube looping mill rolling is placed electric furnace, and be heated to 550 ℃ of insulations 3 hours; Heating rate with 80 ℃/h will be heated to 820 ℃ of titanium tube blanks, be incubated 3 hours; A fiery secondary ring is rolled to dimensional requirement on Ring Rolling Machine; In electric furnace, titanium tube blank is carried out annealing in process behind the looping mill rolling, the temperature of annealing in process is 600 ℃; Be incubated 3 hours and come out of the stove, naturally cool to room temperature; Obtain the spinning blank of titanium tube;
Step 3, the processing of spinning blank
Remove the oxygen-rich layer of the spinning blank surface formation of titanium tube through machining;
Step 4, rotary press modelling cathode roll titanium tube
The process of rotary press modelling comprises 3～4 passage spinning; The spinning blank that will pass through Vehicle Processing places electric furnace to be heated to 600 ℃, is incubated after 1 hour, and hot charging is on the spinning machine core; To the heating of spinning blank outer surface, after the temperature of spinning blank reaches 500 ℃, begin the spinning blank is carried out the first passage rotary pressing processing; After accomplishing the first passage spinning, spinning wheel withdraws from and is returned to initial spinning position, begins the second road spinning; After accomplishing the second passage spinning, spinning wheel withdraws from and is returned to initial spinning position; Repeat the spinning process of the second passage spinning, until the rotary press modelling of accomplishing cathode roll titanium tube; Withdraw from spinning wheel, stop flame heat, drive titanium barrier part down, obtain the cathode roll titanium tube of pre-profiling from spinning machine; In spinning process, keep spinning titanium tube temperature at 400-550 ℃; Every time attenuate amount is 7～10mm;
The annealing heat treatment of step 5, the intact titanium tube of spinning
Cathode roll titanium tube to pre-profiling is heated to 600 ℃, is incubated 2 hours, cools to the furnace below 300 ℃ and comes out of the stove; End and bare terminal end are revolved in rising of the cathode roll titanium tube of excision pre-profiling; Finally obtain the cathode roll titanium tube after the moulding.
The chemical composition (percentage by weight) of the titanium ingot casting piece that the present invention selects for use is: Fe＜0.06, and O＜0.06, C＜0.02, N＜0.02, H＜0.01, other impurity element is single＜and 0.05, other constituent content summation＜0.2.Through reasonable parameter control, the ovality≤3mm of the titanium tube that obtains, diameter tolerance≤3mm, wall thickness tolerance≤0.5mm, the microstructure metallographic detects 6～8 grades of grain sizes.
The specific embodiment
Embodiment one
Present embodiment is a kind of manufacturing approach of external diameter Ф 1500mm cathode roll titanium tube.
It is 600mm that present embodiment is selected diameter for use, highly make cathode roll for the car light titanium ingot casting piece of 800mm uses seamless Ti tube.Used titanium ingot casting piece chemical composition (percentage by weight) is: Fe 0.02, and O 0.05, and C 0.01, and N 0.005, and H 0.001, and other impurity element is single＜and 0.05, other constituent content summation＜0.2.
The practical implementation process is following:
The preparation of step 1, looping mill rolling blank
Titanium ingot casting piece heats in gas furnace, and titanium ingot casting piece is warming up to 550 ℃ of insulations 4 hours.With the programming rate of 80 ℃/h, titanium ingot casting piece is heated to 1020 ℃, be incubated 3 hours.Through hydraulic press the height of titanium ingot casting piece is depressed into 500mm.The centre punch diameter of the titanium ingot casting piece after flattening is the through hole of 250mm.The titanium ingot casting piece that has dashed behind the hole naturally cools to room temperature.
Cooled titanium ingot casting piece surface is checked, and polishing is removed the surfaces externally and internally crackle, is scratched defective.
The titanium ingot casting piece of handling through polishing places gas furnace to be heated to 550 ℃, and is incubated 4 hours, and the programming rate with 80 ℃/h is heated to 930 ℃ then, and is incubated 2 hours.Through the saddle support reaming aperture of the centre bore of titanium ingot casting piece is expanded to 800mm, expanded behind the hole titanium ingot casting piece again shove charge be heated to 930 ℃, be incubated 1 hour, the saddle support pulling is to being 720mm highly.Titanium ingot casting piece after reaming and the pulling is naturally cooled to room temperature, obtain the preceding blank material of looping mill rolling moulding of titanium tube, it is of a size of external diameter Ф 1020mm * internal diameter Ф 800mm * high 720mm.
The inner surface of the said circular material blank of Vehicle Processing, outer surface and end face are removed the oxide skin on circular material blank surface, the place that local Vehicle Processing is not in place, and polishing is removed, and burnishing part is excessively slick and sly, and depth-to-width ratio is less than 1/10th.Obtain the preceding blank of cathode roll titanium tube looping mill rolling.
The spinning blank of step 2, looping mill rolling processing titanium tube
Brush one deck waterglass on titanium tube blank surface.Blank before the titanium tube looping mill rolling is placed electric furnace, and be heated to 550 ℃ of insulations 3 hours; Heating rate with 80 ℃/h will be heated to 820 ℃ of titanium tube blanks, be incubated 3 hours.A fiery secondary ring is rolled to dimensional requirement on Ring Rolling Machine.In electric furnace, titanium tube blank is carried out annealing in process behind the looping mill rolling, the temperature of annealing in process is 600 ℃; Be incubated 3 hours and come out of the stove, naturally cool to room temperature.Obtain the spinning blank of titanium tube, its appearance and size is external diameter Ф 1580mm * internal diameter Ф 1460mm * high 720mm.
Step 3, the processing of spinning blank
Adopt common machine adding method that the spinning blank is machined,, be of a size of external diameter Ф 1560mm * internal diameter Ф 1480mm * high 700mm after the Vehicle Processing to remove the oxygen-rich layer that the surface forms in the hot procedure fully
Step 4, rotary press modelling cathode roll titanium tube
The process of rotary press modelling comprises 3 passage spinning.
The spinning blank that will pass through Vehicle Processing places electric furnace to be heated to 600 ℃, is incubated after 1 hour, and hot charging is on the spinning machine core.Adopt acetylene torch to being contained in the spinning blank outer surface heating on the spinning machine core, after the temperature of spinning blank reaches 500 ℃, begin the spinning blank is carried out the first passage rotary pressing processing the thick attenuate 10mm of the first passage spinning titanium barrel.After accomplishing the first passage spinning, spinning wheel withdraws from and is returned to initial spinning position, begins the second road spinning.The second gage variation during a pass attenuate still is 10mm.After accomplishing the second passage spinning, spinning wheel withdraws from and is returned to initial spinning position, begins the 3rd road spinning.Three passage spinning withdraw from spinning wheel after accomplishing, and stop flame heat, drive titanium barrier part down from spinning machine, obtain the cathode roll titanium tube of pre-profiling.In the spinning process, the feed ratio of spinning machine is 1, and rotating speed is 80 rev/mins; Keep spinning titanium tube temperature at 400-550 ℃.
The annealing heat treatment of the cathode roll titanium tube of step 5, pre-profiling
Cathode roll titanium tube to the pre-profiling that obtains in electric furnace carries out annealing in process.Place electric furnace to be heated to 600 ℃ in the cathode roll titanium tube of pre-profiling, be incubated 2 hours, cool to the furnace below 300 ℃ and come out of the stove.
End and bare terminal end are revolved in rising of the cathode roll titanium tube of excision pre-profiling.Finally obtain the cathode roll titanium tube after the moulding.
The physical dimension and the metallographic structure of the cathode roll titanium tube that the detection present embodiment obtains.Titanium tube middle straight line segment is partly carried out physical dimension detect, and carry out metal detection from the cut-out sampling.Actual measurement titanium tube straightway portion size precision is following: titanium tube length degree 1420mm, external diameter Ф 1501-1503mm, ovality 2mm, wall thickness 15.5-15.9mm.The microstructure metallographic detects 7～8 grades of grain sizes.
Embodiment two
Present embodiment is a kind of manufacturing approach of external diameter Ф 2000mm cathode roll titanium tube.
It is 800mm that present embodiment is selected diameter for use, highly make cathode roll for the car light titanium ingot casting piece of 660mm uses seamless Ti tube.Used titanium ingot casting piece chemical composition (percentage by weight) is: Fe 0.05, and O 0.04, and C 0.01, and N 0.001, and H 0.001, and other impurity element is single＜and 0.05, other constituent content summation＜0.2.
The practical implementation process is following:
The preparation of step 1, looping mill rolling blank
Titanium ingot casting piece heats in gas furnace, and titanium ingot casting piece is warming up to 550 ℃ of insulations 4 hours.With the programming rate of 80 ℃/h, titanium ingot casting piece is heated to 1020 ℃, be incubated 3 hours.Through hydraulic press the height of titanium ingot casting piece is depressed into 500mm.The centre punch diameter of the titanium ingot casting piece after flattening is the through hole of 250mm.The titanium ingot casting piece that has dashed behind the hole naturally cools to room temperature.
Cooled titanium ingot casting piece surface is checked polishing is removed the surfaces externally and internally crackle, scratched defective.
The titanium ingot casting piece of handling through polishing places gas furnace to be heated to 550 ℃, and is incubated 4 hours, and the programming rate with 80 ℃/h is heated to 930 ℃ then, and is incubated 2 hours.Through the saddle support reaming aperture of the centre bore of titanium ingot casting piece is expanded to 800mm, expanded behind the hole titanium ingot casting piece again shove charge be heated to 930 ℃, be incubated 1 hour, the saddle support pulling is to being 720mm highly.Titanium ingot casting piece after reaming and the pulling is naturally cooled to room temperature, obtain the preceding blank material of titanium tube looping mill rolling moulding, it is of a size of external diameter Ф 1100mm * internal diameter Ф 800mm * high 720mm.
The inner surface of the said circular material blank of Vehicle Processing, outer surface and end face are removed the oxide skin on circular material blank surface, the place that local Vehicle Processing is not in place, and polishing is removed, and burnishing part is excessively slick and sly, and depth-to-width ratio is less than 1/10th.Obtain the preceding blank of cathode roll titanium tube looping mill rolling.
The spinning blank of step 2, looping mill rolling processing titanium tube
Brush one deck waterglass on titanium tube blank surface.Blank before the titanium tube looping mill rolling is placed electric furnace, and be heated to 550 ℃ of insulations 3 hours; Heating rate with 80 ℃/h will be heated to 820 ℃ of titanium tube blanks, be incubated 3 hours.A fiery secondary ring is rolled to dimensional requirement on Ring Rolling Machine.In electric furnace, titanium tube blank is carried out annealing in process behind the looping mill rolling, the temperature of annealing in process is 600 ℃; Be incubated 3 hours and come out of the stove, naturally cool to room temperature.Obtain the spinning blank of titanium tube, its appearance and size is external diameter Ф 2070mm * internal diameter Ф 1946mm * high 720mm.
Step 3, the processing of spinning blank
Adopt common machine adding method that the spinning blank is machined,, be of a size of external diameter Ф 2060mm * internal diameter Ф 1966mm * high 700mm after the Vehicle Processing to remove the oxygen-rich layer that the surface forms in the hot procedure fully
Step 4, rotary press modelling cathode roll titanium tube
The process of rotary press modelling comprises 4 passage spinning.
The spinning blank that will pass through Vehicle Processing places electric furnace to be heated to 600 ℃, is incubated after 1 hour, and hot charging is on the spinning machine core.Adopt acetylene torch to being contained in the spinning blank outer surface heating on the spinning machine core, after the temperature of spinning blank reaches 500 ℃, begin the spinning blank is carried out the first passage rotary pressing processing the thick attenuate 8mm of the first passage spinning titanium barrel.After accomplishing the first passage spinning, spinning wheel withdraws from and is returned to initial spinning position, begins the second road spinning.The second gage variation during a pass attenuate still is 8mm.After accomplishing the second passage spinning, spinning wheel withdraws from and is returned to initial spinning position, carries out third and fourth passage spinning.Four-pass spinning withdraws from spinning wheel after accomplishing, and stops flame heat, drives titanium barrier part down from spinning machine, obtains the cathode roll titanium tube of pre-profiling.In the spinning process, the feed ratio of spinning machine is 1.5, and rotating speed is 60 rev/mins; Keep spinning titanium tube temperature at 400-550 ℃.
The annealing heat treatment of step 5, the intact titanium tube of spinning
Cathode roll titanium tube to the pre-profiling that obtains in electric furnace carries out annealing in process.Place electric furnace to be heated to 600 ℃ in the cathode roll titanium tube of pre-profiling, be incubated 2 hours, cool to the furnace below 300 ℃ and come out of the stove.
End and bare terminal end are revolved in rising of the cathode roll titanium tube of excision pre-profiling.Finally obtain the cathode roll titanium tube after the moulding.
The physical dimension and the metallographic structure of the cathode roll titanium tube that the detection present embodiment obtains.Titanium tube middle straight line segment is partly carried out physical dimension detect, and carry out metal detection from the cut-out sampling.Actual measurement titanium tube straightway portion size precision is following: titanium tube length degree 1440mm, external diameter Ф 1998-2000mm, ovality 2mm, wall thickness 14.8-15.1mm.The microstructure metallographic detects 7～8 grades of grain sizes.
Embodiment three
Present embodiment is a kind of manufacturing approach of Ф 2700mm cathode roll titanium tube.
It is 800mm that present embodiment is selected diameter for use, highly make cathode roll for the car light titanium ingot casting piece of 900mm uses seamless Ti tube.Used titanium ingot casting piece chemical composition (percentage by weight) is: Fe 0.05, and O 0.06, and C 0.01, and N 0.004, and H 0.001, and other impurity element is single＜and 0.05, other constituent content summation＜0.2.
The practical implementation process is following:
The preparation of step 1, looping mill rolling blank
Titanium ingot casting piece heats in gas furnace, and titanium ingot casting piece is warming up to 550 ℃ of insulations 4 hours.With the programming rate of 80 ℃/h, titanium ingot casting piece is heated to 1020 ℃, be incubated 3 hours.Through hydraulic press the height of titanium ingot casting piece is depressed into 600mm.The centre punch diameter of the titanium ingot casting piece after flattening is the through hole of 250mm.The titanium ingot casting piece that has dashed behind the hole naturally cools to room temperature.
Cooled titanium ingot casting piece surface is checked polishing is removed the surfaces externally and internally crackle, scratched defective.
The titanium ingot casting piece of handling through polishing places gas furnace to be heated to 550 ℃, and is incubated 4 hours, and the programming rate with 80 ℃/h is heated to 930 ℃ then, and is incubated 2 hours.Through the saddle support reaming aperture of the centre bore of titanium ingot casting piece is expanded to 800mm, expanded behind the hole titanium ingot casting piece again shove charge be heated to 930 ℃, be incubated 1 hour, the saddle support pulling is to being 720mm highly.Titanium ingot casting piece after reaming and the pulling is naturally cooled to room temperature, obtain the preceding blank material of titanium tube looping mill rolling moulding, it is of a size of external diameter Ф 1160mm * internal diameter Ф 800mm * high 720mm.
The inner surface of the said circular material blank of Vehicle Processing, outer surface and end face are removed the oxide skin on circular material blank surface, the place that local Vehicle Processing is not in place, and polishing is removed, and burnishing part is excessively slick and sly, and depth-to-width ratio is less than 1/10th.Obtain the preceding blank of cathode roll titanium tube looping mill rolling.
The spinning blank of step 2, looping mill rolling processing titanium tube
Brush one deck waterglass on titanium tube blank surface.Blank before the titanium tube looping mill rolling is placed electric furnace, and be heated to 550 ℃ of insulations 3 hours; Heating rate with 80 ℃/h will be heated to 820 ℃ of titanium tube blanks, be incubated 3 hours.A fiery secondary ring is rolled to dimensional requirement on Ring Rolling Machine.In electric furnace, titanium tube blank is carried out annealing in process behind the looping mill rolling, the temperature of annealing in process is 600 ℃; Be incubated 3 hours and come out of the stove, naturally cool to room temperature.Obtain the spinning blank of titanium tube, its appearance and size is external diameter Ф 2795mm * internal diameter Ф 2660mm * high 720mm.
Step 3, the processing of spinning blank
Adopt common machine adding method that the spinning blank is machined,, be of a size of external diameter Ф 2769mm * internal diameter Ф 2680mm * high 700mm after the Vehicle Processing to remove the oxygen-rich layer that the surface forms in the hot procedure fully.
Step 4, rotary press modelling cathode roll titanium tube
The process of rotary press modelling comprises 4 passage spinning.
The spinning blank that will pass through Vehicle Processing places electric furnace to be heated to 600 ℃, is incubated after 1 hour, and hot charging is on the spinning machine core.Adopt acetylene torch to being contained in the spinning blank outer surface heating on the spinning machine core, after the temperature of spinning blank reaches 500 ℃, begin the spinning blank is carried out the first passage rotary pressing processing the thick attenuate 7mm of the first passage spinning titanium barrel.After accomplishing the first passage spinning, spinning wheel withdraws from and is returned to initial spinning position, begins the second road spinning.The second gage variation during a pass attenuate still is 7mm.After accomplishing the second passage spinning, spinning wheel withdraws from and is returned to initial spinning position, carries out third and fourth passage spinning.Four-pass spinning withdraws from spinning wheel after accomplishing, and stops flame heat, drives titanium barrier part down from spinning machine, obtains the cathode roll titanium tube of pre-profiling.In the spinning process, the feed ratio of spinning machine is 2, and rotating speed is 50 rev/mins; Keep spinning titanium tube temperature at 400-550 ℃.
The annealing heat treatment of step 5, the intact titanium tube of spinning
Cathode roll titanium tube to the pre-profiling that obtains in electric furnace carries out annealing in process.Place electric furnace to be heated to 600 ℃ in the cathode roll titanium tube of pre-profiling, be incubated 2 hours, cool to the furnace below 300 ℃ and come out of the stove.
End and bare terminal end are revolved in rising of the cathode roll titanium tube of excision pre-profiling.Finally obtain the cathode roll titanium tube after the moulding.
The physical dimension and the metallographic structure of the cathode roll titanium tube that the detection present embodiment obtains.Titanium tube middle straight line segment is partly carried out physical dimension detect, and carry out metal detection from the cut-out sampling.Actual measurement titanium tube straightway portion size precision is following: titanium tube length degree 1440mm, external diameter Ф 2712-2715mm, ovality 3mm, wall thickness 15.3-15.6mm.The microstructure metallographic detects 6～8 grades of grain sizes.
Claims (1)
1. a cathode roll is used the seamless Ti tube manufacturing approach, it is characterized in that detailed process is following:
The preparation of step 1, looping mill rolling blank
Titanium ingot casting piece heats in gas furnace, and titanium ingot casting piece is warming up to 550 ℃ of insulations 4 hours; With the programming rate of 80 ℃/h, titanium ingot casting piece is heated to 1020 ℃, be incubated 3 hours; Centre punch diameter at titanium ingot casting piece is the through hole of 250mm; Titanium ingot casting piece after the punching is naturally cooled to room temperature; Polishing is removed the surfaces externally and internally crackle, is scratched defective; The titanium ingot casting piece of handling through polishing places gas furnace to be heated to 550 ℃, and is incubated 4 hours, and the programming rate with 80 ℃/h is heated to 930 ℃ then, and is incubated 2 hours; Through the saddle support reaming aperture of the centre bore of titanium ingot casting piece is expanded to 800mm; Titanium ingot casting piece after reaming shove charge again is heated to 930 ℃, is incubated pulling after 1 hour; Titanium ingot casting piece after reaming and the pulling is naturally cooled to room temperature, obtain the preceding blank of looping mill rolling moulding of titanium tube; Titanium tube blank to obtaining carries out surface finish;
The spinning blank of step 2, looping mill rolling processing titanium tube
Brush one deck waterglass on titanium tube blank surface; Blank before the titanium tube looping mill rolling is placed electric furnace, and be heated to 550 ℃ of insulations 3 hours; Heating rate with 80 ℃/h will be heated to 820 ℃ of titanium tube blanks, be incubated 3 hours; A fiery secondary ring is rolled to dimensional requirement on Ring Rolling Machine; In electric furnace, titanium tube blank is carried out annealing in process behind the looping mill rolling, the temperature of annealing in process is 600 ℃; Be incubated 3 hours and come out of the stove, naturally cool to room temperature; Obtain the spinning blank of titanium tube;
Step 3, the processing of spinning blank
Remove the oxygen-rich layer of the spinning blank surface formation of titanium tube through machining;
Step 4, rotary press modelling cathode roll titanium tube
The process of rotary press modelling comprises 3～4 passage spinning; The spinning blank that will pass through Vehicle Processing places electric furnace to be heated to 600 ℃, is incubated after 1 hour, and hot charging is on the spinning machine core; To the heating of spinning blank outer surface, after the temperature of spinning blank reaches 500 ℃, begin the spinning blank is carried out the first passage rotary pressing processing; After accomplishing the first passage spinning, spinning wheel withdraws from and is returned to initial spinning position, begins the second road spinning; After accomplishing the second passage spinning, spinning wheel withdraws from and is returned to initial spinning position; Repeat the spinning process of the second passage spinning, until the rotary press modelling of accomplishing cathode roll titanium tube; Withdraw from spinning wheel, stop flame heat, drive titanium barrier part down, obtain the cathode roll titanium tube of pre-profiling from spinning machine; In spinning process, keep spinning titanium tube temperature at 400-550 ℃; Every time attenuate amount is 7～10mm;
The annealing heat treatment of step 5, the intact titanium tube of spinning
Cathode roll titanium tube to pre-profiling is heated to 600 ℃, is incubated 2 hours, cools to the furnace below 300 ℃ and comes out of the stove; End and bare terminal end are revolved in rising of the cathode roll titanium tube of excision pre-profiling; Finally obtain the cathode roll titanium tube after the moulding.
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| CN114227282A (en) * | 2022-01-10 | 2022-03-25 | 西安泰金工业电化学技术有限公司 | Titanium cylinder processing production line and manufacturing flow thereof |
| CN114473370A (en) * | 2021-12-15 | 2022-05-13 | 西安航天动力机械有限公司 | Preparation method of stainless steel thin-wall cylinder |
| CN114932383A (en) * | 2022-06-28 | 2022-08-23 | 西安泰金工业电化学技术有限公司 | Manufacturing method of seamless cathode roller titanium cylinder for electrolytic copper foil |
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| CN110976603A (en) * | 2019-12-30 | 2020-04-10 | 西安航天动力机械有限公司 | Preparation method of fine-grain titanium cylinder for cathode roller |
| CN113981349A (en) * | 2021-10-27 | 2022-01-28 | 西安泰金工业电化学技术有限公司 | Annealing process of high-grain-size spinning cathode roller titanium cylinder |
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| CN114473370B (en) * | 2021-12-15 | 2023-06-09 | 西安航天动力机械有限公司 | Preparation method of stainless steel thin-wall cylinder |
| CN114227282A (en) * | 2022-01-10 | 2022-03-25 | 西安泰金工业电化学技术有限公司 | Titanium cylinder processing production line and manufacturing flow thereof |
| CN114932383A (en) * | 2022-06-28 | 2022-08-23 | 西安泰金工业电化学技术有限公司 | Manufacturing method of seamless cathode roller titanium cylinder for electrolytic copper foil |
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