RU2003101569A - METHOD FOR RESTORING ROLLING ROLLS - Google Patents

METHOD FOR RESTORING ROLLING ROLLS

Info

Publication number
RU2003101569A
RU2003101569A RU2003101569/02A RU2003101569A RU2003101569A RU 2003101569 A RU2003101569 A RU 2003101569A RU 2003101569/02 A RU2003101569/02 A RU 2003101569/02A RU 2003101569 A RU2003101569 A RU 2003101569A RU 2003101569 A RU2003101569 A RU 2003101569A
Authority
RU
Russia
Prior art keywords
surfacing
rolling rolls
restoring
subsequent cooling
neck
Prior art date
Application number
RU2003101569/02A
Other languages
Russian (ru)
Other versions
RU2237563C1 (en
Inventor
Юрий Алексеевич Бодяев
Игорь Всеволодович Боровков
Анатолий Павлович Козлов
Александр Григорьевич Санталов
Александр Иванович Трайно
Олег Вячеславович Тяпаев
Original Assignee
Открытое акционерное общество "Магнитогорский металлургический комбинат"
Filing date
Publication date
Application filed by Открытое акционерное общество "Магнитогорский металлургический комбинат" filed Critical Открытое акционерное общество "Магнитогорский металлургический комбинат"
Priority to RU2003101569A priority Critical patent/RU2237563C1/en
Priority claimed from RU2003101569A external-priority patent/RU2237563C1/en
Publication of RU2003101569A publication Critical patent/RU2003101569A/en
Application granted granted Critical
Publication of RU2237563C1 publication Critical patent/RU2237563C1/en

Links

Claims (1)

Способ восстановления прокатных валков с поврежденными шейками, включающий механический съем поврежденного слоя, электродуговую наплавку по месту съема с подачей электрода в зону сварки и последующее охлаждение наплавленной шейки, отличающийся тем, что наплавку производят со скоростью 40-50 м/ч при плотности электрического тока 35-45 А/мм2, причем в процессе наплавки температуру шейки поддерживают не выше 400°С, а последующее охлаждение ведут до температуры окружающей среды со средней скоростью 5-20°С/ч.A method of restoring rolls with damaged necks, including mechanical removal of the damaged layer, electric arc surfacing at the location of removal with the electrode being fed into the welding zone and subsequent cooling of the weld neck, characterized in that the surfacing is performed at a speed of 40-50 m / h at an electric current density of 35 -45 A / mm 2 , and in the process of surfacing the neck temperature is maintained no higher than 400 ° C, and subsequent cooling is carried out to ambient temperature with an average speed of 5-20 ° C / h.
RU2003101569A 2003-01-20 2003-01-20 Process for restoring rolling rolls RU2237563C1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RU2003101569A RU2237563C1 (en) 2003-01-20 2003-01-20 Process for restoring rolling rolls

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RU2003101569A RU2237563C1 (en) 2003-01-20 2003-01-20 Process for restoring rolling rolls

Publications (2)

Publication Number Publication Date
RU2003101569A true RU2003101569A (en) 2004-07-27
RU2237563C1 RU2237563C1 (en) 2004-10-10

Family

ID=33537517

Family Applications (1)

Application Number Title Priority Date Filing Date
RU2003101569A RU2237563C1 (en) 2003-01-20 2003-01-20 Process for restoring rolling rolls

Country Status (1)

Country Link
RU (1) RU2237563C1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2550069C1 (en) * 2013-11-05 2015-05-10 Публичное акционерное общество "Северсталь" (ПАО "Северсталь") Reconditioning of cast iron forming rolls (versions)
CN111975297B (en) * 2020-08-14 2023-02-03 中国人民解放军陆军装甲兵学院 Preparation and rolling post-treatment strengthening process for high-energy micro-arc deposition layer on copper alloy surface

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