C - Chemistry – Metallurgy – 21 – D
Patent
C - Chemistry, Metallurgy
21
D
148/54
C21D 1/667 (2006.01) C21D 9/08 (2006.01)
Patent
CA 1169338
Abstract of the Disclosure Quenched steel pipe is first held at a tempering temperature for a given period of time, then cooled relatively rapidly. While carrying the pipe in the direction of its length, cooling water is sprayed from outside onto its external surface at an average water flux of not lower than 0.05 m3/min.m2 and not higher than 2 m3/min.m2. This cooling is started when the pipe temperature is between 400 °C and 700 °C and ended between room temperature and 350 °C. Also, the cooling is effected at a mean cooling rate of not lower than 5,°C/sec. and not higher than 40 °C/sec.
368583
Kajiki Etuji
Maruyama Kazushi
Morise Heiji
Murata Kyohei
Nagayoshi Haruyuki
Fetherstonhaugh & Co.
Nippon Steel Corporation
LandOfFree
Method of cooling steel pipes does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method of cooling steel pipes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of cooling steel pipes will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1244837