SU1062309A1 - Method for pickling steel band - Google Patents

Method for pickling steel band Download PDF

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Publication number
SU1062309A1
SU1062309A1 SU802971243A SU2971243A SU1062309A1 SU 1062309 A1 SU1062309 A1 SU 1062309A1 SU 802971243 A SU802971243 A SU 802971243A SU 2971243 A SU2971243 A SU 2971243A SU 1062309 A1 SU1062309 A1 SU 1062309A1
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SU
USSR - Soviet Union
Prior art keywords
etching
washing
tape
magnetic field
steel band
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SU802971243A
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Russian (ru)
Inventor
Юрий Федорович Будека
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Белорусский Ордена Трудового Красного Знамени Политехнический Институт
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Priority to SU802971243A priority Critical patent/SU1062309A1/en
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Publication of SU1062309A1 publication Critical patent/SU1062309A1/en

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    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23GCLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G3/00Apparatus for cleaning or pickling metallic material
    • C23G3/02Apparatus for cleaning or pickling metallic material for cleaning wires, strips, filaments continuously
    • CCHEMISTRY; METALLURGY
    • C23COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23GCLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/02Cleaning or pickling metallic material with solutions or molten salts with acid solutions
    • C23G1/08Iron or steel

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Abstract

СПОСОБ ТРАВЛЕНИЯ СТАЛЬНОЙ ЛЕНТЫ, включающий прот гивание через ванны травлени  и промывки ,отличающийс  тем, что, с целью повыиени  производительности процесса, травление и промывку провод т при наложении переменного магнитного пол  С частотой . 30-200 Гц.The method of etching a steel tape, which involves pulling through pickling and washing baths, characterized in that, in order to improve the performance of the process, etching and washing are carried out when applying an alternating magnetic field With a frequency. 30-200 Hz.

Description

Изобретение относитс  к обработке металлов и-может быть использовано при травлении стальной ленты при нанесении на нее защитно-декоративных покрытий, а также при промывке ленты после различных технологинеских операций.The invention relates to the processing of metals and can be used in the etching of a steel tape during the application of protective and decorative coatings on it, as well as during the washing of the tape after various technological operations.

Известны способы травлени  стальной ленты, заключающиес  в том, что ленту прот гивают через травильный раствор Щ Methods are known for etching a steel tape, which consists in drawing the tape through an etching solution

Наиболее близкимк предлагаемому по технической сущности и достигаемому эффекту  вл етс  способ травлени  стальной ленты, включающий прот гивание ленты через, ванну травлени  при 60-80°С и промывку путем прот гивани  ленты через ванну с водой 2 .The closest to the proposed technical essence and the achieved effect is a method of etching a steel tape, including pulling the tape through, a pickling bath at 60-80 ° C and washing by pulling the tape through a water bath 2.

Недостаток известного травлени  и промывки ленты состоит в невозможности увеличени  производительности проката. Поэтому остро стоит проблема повышени  производительности существующего производства при минимальных дополнительных капиталовложени х . Важной  вл етс  также задача снижени  температуры травильного раствора, так как затраты на подогрев больших количеств травильного раствора составл ют значительную долю всех эксплуатационных расходовA disadvantage of the known etching and washing of the tape is the impossibility of increasing the productivity of rolled products. Therefore, there is an acute problem of increasing the productivity of existing production with minimal additional investment. The task of reducing the temperature of the pickling solution is also important, since the cost of heating large quantities of the pickling solution is a significant proportion of all operating costs.

Целью изобретени   вл етс  повытцение производительности процесса.The aim of the invention is to increase the productivity of the process.

Поставленна  цель достигаетс  тем что согласно способу травлени  стал ной ленты, включающему прот гивание ленты через ванны травлени  и промывки f травление и промывку провод т при наложении переменного магнитного пол  с частотой 30-200 Гц,This goal is achieved by the fact that according to the method of etching a steel tape, which involves pulling the tape through etching and washing baths, etching and washing is carried out when a variable magnetic field is applied with a frequency of 30-200 Hz,

При осуществлении способа наблюдаетс  увеличение скорости травлени  на 20-30%, температура раствора снижаетс  до lO-SO C, улучшаетс  качество промывки и сокращаетс  ее длительность на 20-30%,In the process, an etching rate is increased by 20-30%, the temperature of the solution is reduced to lO-SOC, the quality of the washing is improved, and its duration is reduced by 20-30%,

. Приме р. Стальную ленту трав т в растворах, серной или сол ной кислот (или их смеси). В раствоpax НлЗОд/ и НС1 одинакового состава (100. г/л кислоты при трав тленту без магнитного пол  и по предлагаемому способу, а также в посто нном магнитном поле. Длительность травлени  без магнитного пол  и по известному способу (с .посто нным магнитным .полем 500э) составл ет 8 мин, а длительность промывки - 4 мин, т.е. наложение посто нного магнитного пол  не измен ет скорости травлени  и промывки . По предлагаемому способу при скорость травлени  по крайней мере в 1.,.9 раза выше, чем по известному способу. Травлению подвергают сталъную ленту при движении ее в травильном растворе при 40 и . В растворах одинакового состава трав т по известному и предлагаемому способам. Промывают ленту в воде при 20°С. Длительность травлени  по известному способу при 70°G составл ет 8 мин, а длительность промывки - 4 мин. Длительность травлени , и промывки стальной ленты при различных режимах приведены в таблице.. Primer p. Steel tape is etched in solutions of sulfuric or hydrochloric acid (or mixtures thereof). In solutions NLZOD / and HC1 of the same composition (100. g / l acid with herbal tape without a magnetic field and according to the proposed method, as well as in a constant magnetic field. Duration of etching without a magnetic field and by a known method (with a permanent magnetic field. the field 500e) is 8 minutes and the duration of the washing is 4 minutes, i.e. the imposition of a constant magnetic field does not change the etching and washing rates.The method proposed has an etching rate of at least 1., 9 times higher, than by a known method. Etched steel strips when it moves in an etching solution at 40 and in solutions of the same composition, they are etched according to the known and proposed methods. The tape is washed in water at 20 ° C. The duration of etching is known at 8 ° G for 8 minutes and washing time is 4 minutes Duration of etching, and washing the steel tape in various modes are shown in the table.

Как видно, предлагаемый способ позвол ет снизить температуру травлени  на 10-30®С., следовательно, позвол ет экономить большое количество тепла, так как дл  подогрева 1 м тра.вильного раствора на ка шые 10°С требуетс  8400 ккал (D,3 Ккал), что при расходе 100 травильного раствора составл ет 0,84 Гкал/сут дл  одного цеха.As can be seen, the proposed method allows to reduce the etching temperature by 10-30 ° C., therefore, it saves a large amount of heat, since 8400 kcal (D, 3) is required to preheat 1 m of a terrible solution for each 10 ° C. Kcal) at a flow rate of 100 pickling solution is 0.84 Gcal / day for one workshop.

При этом количество солей, оставшихс  после промывки на ленте на-10-20% меньше, чем При промывке по известному способу.At the same time, the amount of salts remaining after washing on the tape is 10-20% less than when washing according to a known method.

Таким образом, изобретение позвол ет увелид1ить скорость травлени  стальной ленты на 20-30%, увеличить скорость пpolvlывки ленты на 20-30%, сокращает расход тепла на 0,842 ,52 Гкал на 100 мтравильного раствора и улучшает качество промывки ленты.Thus, the invention makes it possible to increase the etching rate of steel tape by 20-30%, increase the speed of stripping the tape by 20-30%, reduce heat consumption by 0.842.52 Gcal per 100 m etch solution and improve the quality of washing of the tape.

Claims (1)

СПОСОБ ТРАВЛЕНИЯ СТАЛЬНОЙ ЛЕНТЫ, включающий протягивание ленты через ванны травления и промывки, отличающийся тем, что, с целью повыиения производитель ности процесса, травление и промывку проводят при наложении переменного магнитного поля е частотой. 30-200 Гц.METHOD FOR ETCHING A STEEL TAPE, including pulling a tape through etching and washing baths, characterized in that, in order to increase the productivity of the process, etching and washing are carried out when an alternating magnetic field with frequency e is applied. 30-200 Hz.
SU802971243A 1980-08-04 1980-08-04 Method for pickling steel band SU1062309A1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0775761A1 (en) * 1995-11-27 1997-05-28 CENTRE DE RECHERCHES METALLURGIQUES-CENTRUM VOOR RESEARCH IN DE METALLURGIE Assoc. sans but lucratif-Ver. zonder winstoogmerk Process for pickling heated strips
WO2011005147A2 (en) * 2009-06-19 2011-01-13 Lyubomirskiy Andrey Vilenovich Method for etching the surface of an elongated metal article
WO2015028527A1 (en) * 2013-08-29 2015-03-05 Cmi Uvk Gmbh Method of treating a pickling solution for a pickling process

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
1. Гуренко В.Д., Файнштейн В.М. Травление полос и листов в сол ной кислоте. М., Металлурги , 1971, с. 108-109.. 2. Ямпольский A.M. Травление металлов. М., Металлурги , 1980, с. 8-12, 77. *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0775761A1 (en) * 1995-11-27 1997-05-28 CENTRE DE RECHERCHES METALLURGIQUES-CENTRUM VOOR RESEARCH IN DE METALLURGIE Assoc. sans but lucratif-Ver. zonder winstoogmerk Process for pickling heated strips
WO2011005147A2 (en) * 2009-06-19 2011-01-13 Lyubomirskiy Andrey Vilenovich Method for etching the surface of an elongated metal article
WO2011005147A3 (en) * 2009-06-19 2011-03-31 Lyubomirskiy Andrey Vilenovich Method for etching the surface of an elongated metal article
WO2015028527A1 (en) * 2013-08-29 2015-03-05 Cmi Uvk Gmbh Method of treating a pickling solution for a pickling process

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