KR940013637A

KR940013637A - Enamel steel plate with excellent fish scale resistance and manufacturing method

Info

Publication number: KR940013637A
Application number: KR1019920026029A
Authority: KR
Inventors: 이규정; 김선원; 이정진
Original assignee: 정명식; 포항종합제철 주식회사
Priority date: 1992-12-29
Filing date: 1992-12-29
Publication date: 1994-07-15
Also published as: KR950003535B1

Abstract

본 발명은 법랑제품의 제조공정중 노점온도 20℃의 가혹한 조건의 소성로 분위기에서도 피쉬스케일이 전혀 발생하지 않게 한 것으로서, 중량%로 탄소 0.008% 이하, 질소 0.006% 이상, 티타늄 0.08%-0.15% 범위로 첨가하되, 기타 철 및/또는 불가피하게 함유되는 원소로 조성되고 탄소+질소의 함량을 0.01% 이상으로 조절하고, 최대 질소함량을 14/48 Ti%+14/12 C%+14/32 S%로 조절하여 통상의 방법으로 연속 주조한 강을 열연 마무리압연온도를 Ar₃이상으로 하고 권취온도를 650℃ 이상으로 열간압연하고, 냉간압하율 75% 이상으로 냉간압연하여 재결정온도 이상에서 연속 소둔한 내피쉬스케일성이 우수한 법랑용 강판 및 제조방법이다.In the present invention, the fish scale does not occur at all in the kiln atmosphere under the harsh conditions of the dew point temperature of 20 ° C. during the manufacturing process of the enamel product, and is 0.008% or less of carbon, 0.006% or more of nitrogen, and 0.08% -0.15% of titanium. Is added to other iron and / or inevitably contained elements and adjusts the carbon + nitrogen content to at least 0.01%, and the maximum nitrogen content is 14/48 Ti% + 14/12 C% + 14/32 S The steel is continuously cast in the usual way by adjusting to%, hot rolling finish temperature of Ar ₃ or more, hot rolling of 650 ° C or more, cold rolling of more than 75% of cold rolling rate and continuous annealing above recrystallization temperature. It is an enamel steel sheet and a manufacturing method excellent in fish scale resistance.

Description

Enamel steel plate with excellent fish scale resistance and manufacturing method

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 티타늄 첨가량에 따른 법랑특성을 나타내는 그래프,1 is a graph showing the enamel characteristics according to the amount of titanium added,

제2도는 탄소+질소 함량에 따른 법랑특성을 나타내는 그래프,2 is a graph showing the enamel characteristics according to the carbon + nitrogen content,

제3도는 냉간압하율에 따른 법랑특정을 나타내는 그래프.3 is a graph showing the specific enamel according to the cold reduction rate.

Claims

By weight% carbon: 0.008% or less, nitrogen: 0.006% or more, the maximum nitrogen content is 14/48 Ti% + 14/12 C% + 14/32 S%, carbon + nitrogen: 0.01% or more, other iron And / or an enamel steel sheet having excellent fish scale resistance, which is composed of an element which is inevitably contained.

It is added in the range of carbon by 0.008% or less, nitrogen by 0.006% or more, titanium by 0.08% -0 by 15%, and is composed of other iron and / or inevitably contained elements and contains carbon + nitrogen by 0.01% or more. And the maximum nitrogen content to 14/48 Ti% + 14/12 C% + 14/32 S%, and hot-rolled finish rolling temperature of Ar ₃ or higher and the winding temperature A method for producing an enameled steel sheet having excellent fish scale resistance, which is hot-rolled at 650 ° C. or higher, cold-rolled at a cold reduction rate of 75% or more, and continuously annealed at a recrystallization temperature or higher.

※ Note: The disclosure is based on the initial application.