JPS6436781A - Washing method for pickling tank - Google Patents

Washing method for pickling tank

Info

Publication number
JPS6436781A
JPS6436781A JP19359587A JP19359587A JPS6436781A JP S6436781 A JPS6436781 A JP S6436781A JP 19359587 A JP19359587 A JP 19359587A JP 19359587 A JP19359587 A JP 19359587A JP S6436781 A JPS6436781 A JP S6436781A
Authority
JP
Japan
Prior art keywords
pickling
steel stock
pickling tank
tank
liquid
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.)
Granted
Application number
JP19359587A
Other languages
Japanese (ja)
Other versions
JPH0456113B2 (en
Inventor
Teruo Matsushita
Ryoichi Shimomura
Yasuhiko Nakamura
Mitsuyuki Yamamoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Steel Corp
Original Assignee
Nippon Steel Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP19359587A priority Critical patent/JPS6436781A/en
Publication of JPS6436781A publication Critical patent/JPS6436781A/en
Publication of JPH0456113B2 publication Critical patent/JPH0456113B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Abstract

PURPOSE:To efficiently wash a pickling tank in a shot time by discharging pickling liquid used in a front process from the pickling tank and thereafter washing the pickling tank with the heated dilute liquid of the pickling liquid for using in a rear process in the case of pickling different kind of steel stocks in the same pickling tank. CONSTITUTION:In a common steel stock and a stainless steel stock wherein oxidized scales are formed on the surfaces by hot-rolling them, the former is pickled with a hydrochloric acid aq. soln. and the latter is pickled with a sulfuric acid aq. soln. and thereby scales on the surfaces are dissolved by pickling and removed. In the case of separately pickling the common steel stock and the stainless steel stock in the same pickling tank, when firstly pickling the common steel stock and next pickling the stainless steel stock, hydrochloric acid liquid of pickling liquid is discharged after pickling of the common steel stock is finished and thereafter sludge in the pickling tank is roughly washed with water and removed. Then water is introduced into the pickling tank and sulfuric acid is added into the water so that its concn. is regulated to 1g/l and this soln. is heated at about 70 deg.C and the pickling tank is washed and residual hydrochloric acid is completely removed and washed and thereafter pickling of the stainless steel stock is performed. The pickling tank can be efficiently washed by this simple method.
JP19359587A 1987-08-01 1987-08-01 Washing method for pickling tank Granted JPS6436781A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19359587A JPS6436781A (en) 1987-08-01 1987-08-01 Washing method for pickling tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19359587A JPS6436781A (en) 1987-08-01 1987-08-01 Washing method for pickling tank

Publications (2)

Publication Number Publication Date
JPS6436781A true JPS6436781A (en) 1989-02-07
JPH0456113B2 JPH0456113B2 (en) 1992-09-07

Family

ID=16310570

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19359587A Granted JPS6436781A (en) 1987-08-01 1987-08-01 Washing method for pickling tank

Country Status (1)

Country Link
JP (1) JPS6436781A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112779547A (en) * 2021-02-01 2021-05-11 武文青 Circulating type pickling device for hot-rolled nickel-based alloy stainless steel medium plate

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5018983U (en) * 1973-06-14 1975-03-03
JPS5576092U (en) * 1978-11-21 1980-05-26
JPS5983784A (en) * 1982-11-01 1984-05-15 Kawasaki Steel Corp Multi-purpose continuous acid-pickling apparatus

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5018983U (en) * 1973-06-14 1975-03-03
JPS5576092U (en) * 1978-11-21 1980-05-26
JPS5983784A (en) * 1982-11-01 1984-05-15 Kawasaki Steel Corp Multi-purpose continuous acid-pickling apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112779547A (en) * 2021-02-01 2021-05-11 武文青 Circulating type pickling device for hot-rolled nickel-based alloy stainless steel medium plate
CN112779547B (en) * 2021-02-01 2022-08-26 武文青 Circulating type pickling device for hot-rolled nickel-based alloy stainless steel medium plate

Also Published As

Publication number Publication date
JPH0456113B2 (en) 1992-09-07

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