Method for continuous measuring molten steel temperature and temp. measuring tube

Application Number: 00120354
Application Date: 2000.07.12
Publication Number: 1333455
Publication Date: 2002.01.30
Priority Information:
International: G01J5/54
Applicant(s) Name: Dongbei Univ.
Inventor(s) Name: Xie Zhi;Chen Rujun;Meng Hongji
Patent Agency Code: 11038
Patent Agent: li deshan
Abstract The present invention discloses a method for continuously measuring temp. of motten steel, including the following steps: providing a temperature-measuring tube, it is a composite tube formed from internal tube and external tube, their one end is opened respectively, another end is closed; inserting the closed end of said temperature-measuring tube into molten steel, the ratio of inserted length and internal diameter of said temperature-measuring tube is equal to or greater than 15, and the ratio of the inserted length and external diameter of the temperature-measuring tube is greater than 3; connecting another end of the described temp.-measuring tube with a temp.-measuring instrument; analyzing heat-radiation radiated from end portion of internal tube of temp.-measuring tube inserted into molten steel so as to can calculate temp. of molten steel. Said invention also discloses the invented temp.-measuring tube.