CN106216423B - A kind of production technology of the highly conductive oxygen-free copper stripe of ceramic copper-clad base plate - Google Patents

A kind of production technology of the highly conductive oxygen-free copper stripe of ceramic copper-clad base plate Download PDF

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CN106216423B
CN106216423B CN201610637402.1A CN201610637402A CN106216423B CN 106216423 B CN106216423 B CN 106216423B CN 201610637402 A CN201610637402 A CN 201610637402A CN 106216423 B CN106216423 B CN 106216423B
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copper
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copper strips
strips
cold rolling
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CN106216423A (en
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裘德亮
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YANGZHOU HEJI PLASTIC CO., LTD.
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Guangzhou Wan Yue Intellectual Property Operation Co Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/02—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of sheets

Abstract

A kind of production technology the present invention relates to ceramic copper-clad base plate with highly conductive oxygen-free copper stripe, comprises the following steps：（1）High purity copper founding；（2）Continuous up-casting technology prepares copper bar；（3）Copper strip billet is produced with continuously extruded unit；（4）Cold mill complex rolls；（5）Annealing；（6）Cold rolling；（7）Aligning；（8）Cleaning and Passivation；（9）Cutting.The highly conductive oxygen-free copper stripe of ceramic copper-clad base plate produced by the invention has the advantages that copper content is high, oxygen content is low, conductivity is high, plastic deformation ability is high and surface quality is high, and the technological process is short, efficient, energy saving.

Description

A kind of production technology of the highly conductive oxygen-free copper stripe of ceramic copper-clad base plate
Technical field
The present invention relates to technical field of nonferrous metal processing, more particularly, to a kind of ceramic copper-clad base plate with highly conductive anaerobic The production technology of copper strips.
Background technology
Power electronic devices and power module are widely used in Aeronautics and Astronautics, high-speed railway, electric automobile, wind-powered electricity generation, the sun The fields such as energy, intelligent grid, high-end equipment, robot, high-power IGBT device extensive market；Ceramic copper-clad plate both has ceramics High-termal conductivity, high electrical insulating properties, high mechanical properties, the characteristic such as low bulk, and the high conductivity with anaerobic copper metal and excellent Different welding performance, is the indispensable key foundation material of IGBT power module encapsulation.Ceramic copper-clad plate is will be highly conductive A kind of composite cermet substrate that oxygen-free copper is bonded directly to ceramic surface at high temperature and is formed, it had both had the height of ceramics The characteristics such as thermal conductivity, high electrical insulating properties, high mechanical properties, low bulk, and with the high conductivity of anaerobic copper metal and excellent Welding performance, and various figures can be etched as PCB circuit board, it is field of power electronics power module package connection chip With the critical material of heat radiation substrate.
Aluminium oxide and aluminium nitride ceramic copper-clad substrate substrate are the core key parts in device encapsulation.Domestic aluminium oxide, Aluminum nitride ceramic substrate has started to domesticize, but high-performance ceramic copper-clad base plate all relies on import with highly conductive oxygen-free copper stripe, As the bottleneck for restricting domestic production IGBT device.Traditional handicraft prepares preparation of the ceramic copper-clad base plate with highly conductive oxygen-free copper stripe Technique is：Vacuum drying oven melting-ingot casting-heating-hot rolling-milling face-multi-pass cold rolling-multi-pass annealing-cleaning-is cold Roll-clean-cut.The copper strips of the technique productions, cannot meet needs in copper content, oxygen content, conductivity etc..
The content of the invention
For the prior art there are problem, the object of the present invention is to provide a kind of ceramic copper-clad base plate with highly conductive anaerobic The production technology of copper strips, the ceramic copper-clad base plate of invention production is with highly conductive oxygen-free copper stripe purity is high, oxygen content is low, conductivity High, surface quality height, while technological process is short, efficient, energy saving.
To reach above-mentioned purpose, the present invention is achieved by the following technical solutions：
A kind of ceramic copper-clad base plate production technology of highly conductive oxygen-free copper stripe, comprises the following steps：
（1）High purity copper founding：Using No. 1 standard cathode copper as raw material, using vacuum electron beam melting, solidification, impurity is removed Element.
（2）Continuous up-casting copper bar：With step（1）The high purity copper of middle preparation is raw material, by high purity copper in smelting apparatus into Row fusing, using charcoal or graphite flakes covering copper liquid surface, using drawing copper bar on traction link seat.
（3）It is continuously extruded：With step（2）The copper bar of middle preparation is raw material, and copper strip billet is produced using continuously extruded unit；
（4）Cold rolling：Copper strips blank is rolled using cold mill complex；
（5）Annealing：Annealed using bright annealing equipment to copper strips after cold rolling；
（6）Cold rolling：The copper strips after annealing is rolled using reversible hydraulic cold mill complex；
（7）Aligning：Copper strips template is controlled using aligning unit；
（8）Cleaning and Passivation：Copper strips after cold rolling is subjected to Cleaning and Passivation, degreasing, degreasing storage are carried out to copper strips using lye Liquid case uses oily water separation technique, using 10% sulfuric acid solution to copper strips carry out pickling, using 600 mesh the rough polishing of pin brush and 5000 mesh 3M brushes carry out smart throwing, with the phenylpropyl triazole aqueous solution Passivation Treatment that concentration is 0.2% at 75 DEG C after polishing；
（9）Cutting：Copper strips is cut using cutting apparatus.
The step（1）In high purity copper ingot casting into being grouped into：Copper content be more than 99.999%, oxygen content≤ 0.0005%, conductivity >=102.5%IACS；Electron gun working vacuum degree during described vacuum electron beam melting is less than 3 × 10- 3Pa, working chamber's vacuum are less than 3 × 10-2Pa, accelerating potential 30KV.Cooling water flow is to be more than 380l/h, hauling speed 2mm/min。
The step（2）Middle smelting apparatus includes crystallizer, smelting furnace and holding furnace, the leaving water temperature of crystallizer be less than 28 DEG C, the temperature of the smelting furnace is 1135 DEG C, and the temperature of holding furnace is 1130 DEG C；The smelting furnace is using the wooden carbon dried Covering, the granularity of the charcoal is 30mm-38mm, cladding thickness 150mm-180mm；The holding furnace is covered using graphite phosphorus sheet Lid, cladding thickness 30mm-35mm.
The step（2）In bar speed of drawing be 20mm/min, it is Ф 30mm to draw shank diameter；The continuous up-casting of the preparation The copper content of copper bar is more than 99.999%, oxygen content≤0.0005%, conductivity >=102.5%IACS.
The step（3）Middle continuous extruder rotating speed is 2.5r/min；The copper strip billet width of preparation is 330mm, and thickness is 20mm, the horizontal tolerance of copper strip billet are less than 0.007mm, and the horizontal tolerance of copper strip billet is less than 0.007mm.
The step（4）Middle cold rolling pass is assigned as 20mm-15mm-10mm-6mm-4mm-2.5mm-1.5mm-1mm；Roll Pressing pressure≤5000KN, mill speed≤80m/min, rolls forward pull 32-35KN, backward pull 51-55KN.
The step（5）In annealing temperature be 210 DEG C, annealing time 6h；Bright annealing equipment uses hydrogen and nitrogen Mixed gas accounts for 15% as protective gas, wherein hydrogen；Programming rate is 60 DEG C/h, when cooling time 15 is small；After annealing, The tensile strength of copper strips is less than 210MPa, and elongation percentage is more than 55%, and the grain size of copper strips is 0.005-0.01mm.
The step（6）Middle cold rolling is two passes, and cold rolling pass is assigned as 1mm-0.75mm-0.6mm；Draught pressure ≤1000KN；The gloss level of roll wherein used is less than 0.1 μm；The tensile strength of copper strips is 350- after the cold rolling 360MPa, hardness HV are 106-116, and conductivity is more than 101.5%IACS, and copper strip surface roughness is less than 0.35 μm.
The step（7）Middle forward pull control is in 0.5-0.8KN, backward pull control copper strips after 0.2-0.3KN, aligning Template is less than 5I, and thickness deviation is less than ± 0.001mm.
The step（9）Middle gap blade is 0.06mm, and the drafts of cutter shaft is 0.30mm；The side camber of every meter of copper strips Degree is less than 1mm, and the transverse curvature degree of every meter of copper strips is less than 1mm, and the torsion resistance of every meter of copper strips is less than 5 °.
A kind of ceramic copper-clad base plate of the present invention is had the advantages that with the production technology of highly conductive oxygen-free copper stripe：
1st, using vacuum electron beam melting technique, impurity is removed, the wherein copper content of high purity copper ingot casting is more than 99.999%； High purity copper is used as raw material, using technology continuous casting copper bar is above drawn, ensures the high property of copper material using the online degasification of copper liquid, deoxidation equipment Can, wherein copper content is more than 99.999%, oxygen content≤0.0005%, conductivity >=102.5%IACS.
2nd, it is combined using continual extruding technology with cold rolling technology, there is provided the copper strips of excellent performance, wherein tensile strength For 350-360MPa, hardness HV:106-116, conductivity are more than 101.5%IACS, and copper strip surface roughness is less than 0.35 μm.
3rd, flow of the present invention is short, efficient, energy saving.The present invention saves ingot casting heating, hot rolling, cutting edge compared with traditional handicraft Etc. process, beneficial effect is to save energy consumption more than 30%, and lumber recovery reaches more than 75%.
Embodiment
With reference to specific embodiment, the present invention is further illustrated, but protection scope of the present invention is not limited to This.
Embodiment 1
A kind of 1 ceramic copper-clad base plate of the present embodiment is with the production procedure of highly conductive oxygen-free copper stripe：High purity copper founding-on Draw continuous casting copper bar-continuously extruded-cold rolling-annealing-cold rolling-aligning-Cleaning and Passivation-cutting.
It is concretely comprised the following steps：
（1）High purity copper founding：Using No. 1 standard cathode copper as raw material, using vacuum electron beam melting, solidification, impurity is removed Element.High purity copper ingot casting into being grouped into：Copper content is more than 99.999%, oxygen content≤0.0005%, conductivity >=102.5% IACS；Electron gun working vacuum degree during described vacuum electron beam melting is less than 3 × 10-3Pa, working chamber's vacuum be less than 3 × 10-2Pa, accelerating potential 30KV.Cooling water flow is more than 380l/h, hauling speed 2mm/min.
（2）Continuous up-casting
With with step（1）The high purity copper of middle preparation is raw material, high purity copper is melted in smelting apparatus, using charcoal Or graphite flakes covering copper liquid surface, using drawing copper bar on traction link seat.
Smelting apparatus includes crystallizer, smelting furnace and holding furnace, and the leaving water temperature of crystallizer is the melting less than 28 DEG C The temperature of stove is 1135 DEG C, and the temperature of holding furnace is 1130 DEG C；The smelting furnace is using the wooden carbon covering of drying, the charcoal Granularity be 30mm-38mm, cladding thickness 150mm-180mm；The holding furnace is covered using graphite phosphorus sheet, and cladding thickness is 30mm-35mm。
Compartment is equipped between melting furnace and holding furnace, is connected between the melting furnace, compartment and holding furnace by flowing ditch, institute State stream ditch and be higher by furnace bottom 300mm, online depassing unit is installed in the compartment, is filled with by online depassing unit into copper liquid 99.996% CO gas, and by controlled rotation graphite shaft and rotor, the CO gas of metering is pressed into copper In liquid and micro-bubble is dispersed as, it is uniformly dispersed in copper liquid, source outlet pressure 1.5MPa, flow 2.5Nm3/ h, The rotor speed control is in 100-120r/min.
The bar speed of drawing of continuous up-casting is 20mm/min, and it is Ф 30mm to draw shank diameter.The component composition of continuous up-casting copper bar For：Copper content is more than 99.9992%, oxygen content 0.0002%, conductivity 102.7%IACS.
（3）It is continuously extruded
With step（2）The copper bar of middle preparation is raw material, and copper strip billet is produced using continuously extruded unit；Continuous extruder rotating speed For 2.5r/min；The copper strip billet width of preparation is 330mm, thickness 20mm, and the horizontal tolerance of copper strip billet is less than 0.007mm, copper The horizontal tolerance of made-up belt is less than 0.007mm.
（4）Cold rolling
Two passes are carried out to copper strips blank using cold mill complex, cold rolling pass is assigned as 20mm-15mm-10mm- 6mm-4mm-2.5mm-1.5mm-1mm；Draught pressure≤5000KN, mill speed≤80m/min, rolls forward pull 32-35KN, Backward pull 51-55KN.
（5）Annealing
Annealed using bright annealing equipment to copper strips after cold rolling；Annealing temperature is 210 DEG C, annealing time 6h；It is bright Annealing device accounts for 15% using hydrogen and nitrogen mixed gas as protective gas, wherein hydrogen；Programming rate is 60 DEG C/h, When cooling time 15 is small；After annealing, the tensile strength of copper strips is less than 210MPa, and elongation percentage is more than 55%, and the grain size of copper strips is 0.005-0.01mm。
（6）Cold rolling
The copper strips after annealing is rolled using reversible hydraulic cold mill complex, cold rolling is two passes, cold rolling pass It is assigned as 1mm-0.75mm-0.6mm；Draught pressure 800KN；The gloss level of roll wherein used is less than 0.05 μm；Described is cold The tensile strength for rolling rear copper strips is 360MPa, and hardness HV is 110, conductivity 102%IACS, 0.20 μm of copper strip surface roughness.
（7）Aligning：Copper strips template is controlled using aligning unit, forward pull control exists in 0.6KN, backward pull control 0.22KN, the template 3I of copper strips, thickness deviation are less than ± 0.001mm after aligning.
（8）Cleaning and Passivation
Copper strips after cold rolling is subjected to Cleaning and Passivation, degreasing is carried out to copper strips using lye, degreasing liquid reserve tank uses grease Isolation technics, using 10% sulfuric acid solution to copper strips carry out pickling, using the rough polishing of pin brush and 5000 mesh 3M of 600 mesh brush into Row essence is thrown, with the phenylpropyl triazole aqueous solution Passivation Treatment that concentration is 0.2% at 75 DEG C after polishing.
（8）Cutting
Copper strips is cut using cutting apparatus.Gap blade is 0.06mm, and the drafts of cutter shaft is 0.30mm；Every meter The side camber degree of copper strips is less than 1mm, and the transverse curvature degree of every meter of copper strips is less than 1mm, and the torsion resistance of every meter of copper strips is less than 5 °.
Embodiment 2
2 ceramic copper-clad base plate of the present embodiment is with the production procedure of highly conductive oxygen-free copper stripe：Continuous up-casting-continuous crowded Pressure-cold rolling-annealing-cold rolling-Cleaning and Passivation-cutting again.The step of lacking high-purity copper weld pool, other steps and embodiment 1 It is identical.
Embodiment 3
3 ceramic copper-clad base plate of the present embodiment is with the production procedure of highly conductive oxygen-free copper stripe：High-purity copper weld pool-above draw company Casting-cold rolling-annealing-cold rolling-Cleaning and Passivation-cutting again, lacks continuously extruded step, other steps and 1 phase of embodiment Together.
Comparative example 1
Ceramic copper-clad base plate is prepared with highly conductive oxygen-free copper stripe using traditional handicraft：
Vacuum drying oven melting-ingot casting-heating-hot rolling-milling face-multi-pass cold rolling-multi-pass annealing-cleaning-is cold Roll-clean-cut.
Performance test and analysis
It is tested for the property and analyzes by technology well known in the art, analysis structure is as follows：
Copper strips made from the present embodiment 1, wherein copper content 99.9992%, oxygen content 0.0002%, the tensile strength of copper strips For 360MPa, hardness HV is 110, and conductivity 102%IACS, 0.20 μm of copper strip surface roughness, meets ceramic copper-clad base plate use The needs of highly conductive oxygen-free copper stripe.
The conductivity of copper material made from embodiment 2-3 is less than 101%IACS, and copper content is less than 99.97%.
Copper strips oxygen content made from comparative example 1 is more than 0.005%, and copper content is less than 99.97%, and energy consumption is very big.
In conclusion the technological process of production of the present invention is short, efficient, energy saving, and obtained copper strips has excellent performance.
Above-described embodiment is only used for illustrating the inventive concept of the present invention, rather than the restriction to rights protection of the present invention, All changes for carrying out unsubstantiality to the present invention using this design, should all fall into protection scope of the present invention.

Claims (2)

1. a kind of ceramic copper-clad base plate production technology of highly conductive oxygen-free copper stripe, it is characterised in that comprise the following steps：
（1）High purity copper founding：Using No. 1 standard cathode copper as raw material, using vacuum electron beam melting, solidification, impurity element is removed； The high purity copper ingot casting of preparation into being grouped into：Copper content is more than 99 .999%, oxygen content≤0.0005%, and conductivity >= 102.5%IACS；Electron gun working vacuum degree during described vacuum electron beam melting is less than 3 × 10-3Pa, working chamber's vacuum Less than 3 × 10-2Pa, accelerating potential 30KV；Cooling water flow is more than 380l/h, hauling speed 2mm/min；
（2）Continuous up-casting copper bar:With step（1）The high purity copper ingot casting of middle preparation is raw material, by high purity copper ingot casting in smelting apparatus In melted, using charcoal or graphite flakes covering copper liquid surface, using drawing copper bar on traction link seat；The smelting apparatus Including crystallizer, smelting furnace and holding furnace, the leaving water temperature of crystallizer is less than 28 DEG C, and the temperature of smelting furnace is 1135 DEG C, is protected The temperature of warm stove is 1130 DEG C；Smelting furnace is using the charcoal covering of drying, and the granularity of charcoal is 30mm-38mm, and cladding thickness is 150mm-180mm, holding furnace are covered using graphite flakes, cladding thickness 30mm-35mm；On draw copper bar casting speed and be 20mm/min, it is Ф 30mm above to draw copper shank diameter；The copper content of the continuous up-casting copper bar of preparation be more than 99.999%, oxygen content≤ 0.0005%, conductivity >=102.5%IACS；
（3）It is continuously extruded：With step（2）The copper bar of middle preparation is raw material, and copper strip billet is produced using continuously extruded unit；Described Continuous extruder rotating speed is 2.5r/min, and the copper strip billet width of preparation is 330mm, thickness 20mm, the horizontal tolerance of copper strip billet Less than 0.007mm；
（4）Cold rolling：Copper strips blank is rolled using cold mill complex；Cold rolling pass is assigned as 20mm-15mm-10mm-6mm- 4mm-2.5mm-1.5mm-1mm, draught pressure≤5000KN, mill speed≤80m/min, rolls forward pull 32-35KN, post-tensioning Power 51-55KN；
（5）Annealing：Annealed using bright annealing equipment to copper strips after cold rolling；Annealing temperature is 210 DEG C, annealing time 6h； Bright annealing equipment accounts for 15% using hydrogen and nitrogen mixed gas as protective gas, wherein hydrogen；Programming rate for 60 DEG C/ Hour, when cooling time 15 is small；After annealing, the tensile strength of copper strips is less than 210MPa, and elongation percentage is more than 55%, the crystal grain of copper strips Spend for 0.005-0.01mm；
（6）Cold rolling：The copper strips after annealing is rolled using reversible hydraulic cold mill complex；Cold rolling is two passes, cold rolling Passage is assigned as 1mm-0.75mm-0.6mm；Draught pressure≤1000KN；The gloss level of roll wherein used is less than 0.1 μm；It is cold The tensile strength for rolling rear copper strips is 350-360MPa, and hardness HV is 106-116, and conductivity is more than 101.5%IACS, copper strip surface Roughness is less than 0.35 μm；
（7）Aligning：Copper strips template is controlled using aligning unit；Forward pull control is aligned in 0.5-0.8KN, backward pull control System template of copper strips after 0.2-0.3KN, aligning is less than 5I, and thickness deviation is less than ± 0.001mm；
（8）Cleaning and Passivation：Copper strips after cold rolling is subjected to Cleaning and Passivation, degreasing, degreasing liquid reserve tank are carried out to copper strips using lye Using oily water separation technique, pickling is carried out to copper strips using 10% sulfuric acid solution, using the pin brush rough polishing of 600 mesh and 5000 Mesh 3M brushes carry out smart throwing, with the phenylpropyl triazole aqueous solution Passivation Treatment that concentration is 0.2% at 75 DEG C after polishing；
（9）Cutting：Copper strips is cut using cutting apparatus；Slitting blade gap is 0.06mm, and the drafts of cutter shaft is 0.30mm, the side camber degree of every meter of copper strips are less than 1mm, and the transverse curvature degree of every meter of copper strips is less than 1mm, the distortion of every meter of copper strips Degree is less than 5 °；
The copper strips that a kind of ceramic copper-clad base plate is prepared with the production technology of highly conductive oxygen-free copper stripe：Copper content is more than 99 .999%, oxygen content≤0.0005%, tensile strength 350-360MPa, hardness HV are 106-116, and conductivity is more than 101.5% IACS, copper strip surface roughness are less than 0.35 μm, and the side camber degree of every meter of copper strips is less than 1mm, the transverse curvature of every meter of copper strips Degree is less than 1mm, and the torsion resistance of every meter of copper strips is less than 5 °.
CN201610637402.1A 2016-08-05 2016-08-05 A kind of production technology of the highly conductive oxygen-free copper stripe of ceramic copper-clad base plate Active CN106216423B (en)

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CN108907202A (en) * 2018-07-13 2018-11-30 扬州禾基塑业有限公司 A kind of copper strips manufacturing process
CN110899355A (en) * 2019-11-29 2020-03-24 金川集团股份有限公司 Production method of ultra-long high-conductivity copper tube

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63293147A (en) * 1987-05-26 1988-11-30 Nippon Steel Corp Production of iron-copper-chromium alloy strip for high-strength lead frame
CN101502872A (en) * 2009-03-11 2009-08-12 上海康成铜材有限公司 Shortened method for producing oxygen-free copper belt
CN102825093A (en) * 2012-09-07 2012-12-19 白银有色集团股份有限公司 Production technology for hollow abnormal-shape electric anaerobic copper plate
CN103088230A (en) * 2013-02-28 2013-05-08 徐高磊 High-copper alloy strip for heat sink of automobile
CN103252378A (en) * 2012-02-17 2013-08-21 江西广信铜业有限公司 Method of producing high-precision oxygen-free silver copper strips by continuous extrusion and cold rolling

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63293147A (en) * 1987-05-26 1988-11-30 Nippon Steel Corp Production of iron-copper-chromium alloy strip for high-strength lead frame
CN101502872A (en) * 2009-03-11 2009-08-12 上海康成铜材有限公司 Shortened method for producing oxygen-free copper belt
CN103252378A (en) * 2012-02-17 2013-08-21 江西广信铜业有限公司 Method of producing high-precision oxygen-free silver copper strips by continuous extrusion and cold rolling
CN102825093A (en) * 2012-09-07 2012-12-19 白银有色集团股份有限公司 Production technology for hollow abnormal-shape electric anaerobic copper plate
CN103088230A (en) * 2013-02-28 2013-05-08 徐高磊 High-copper alloy strip for heat sink of automobile

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