Patent ID: 11872614
Assignee: BAOSHAN IRON & STEEL CO., LTD.
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 2:
3. The emulsion flow optimization method for suppressing vibration of a cold continuous rolling mill according to claim 2, wherein the step S8 comprises the following steps:
(S8.1) calculating an outlet temperature T1 of a first rolling stand of the plurality of rolling stands, wherein, T
    1
   
   =
   
    
     T
     1
     r
    
    +
    
     
      
       1
       -
       
        (
        
         
          ε
          1
         
         /
         4
        
        )
       
      
      
       1
       -
       
        (
        
         
          ε
          1
         
         /
         2
        
        )
       
      
     
     ·
     
      
       
        K
        1
       
       ⁢
       ln
       ⁢
       
        (
        
         1
         
          1
          -
          
           ε
           1
          
         
        
        )
       
      
      
       ρ
       ⁢
       S
       ⁢
       J
      
     
    
   
  
  ;
 

(S8.2) enabling i=1;
(S8.3) calculating a temperature Ti,1 of a first section of strip behind an outlet of the ith rolling stand, i.e. Ti,1=Ti;
(S8.4) enabling j=2;
(S8.5) calculating a temperature Ti,j of a jth section of strip by a relationship between a temperature of the jth section and a temperature of a j−1th section shown by the following equation :, T
    
     i
     ,
     j
    
   
   =
   
    
     
      -
      
       
        2
        ⁢
        
         k
         0
        
        ⁢
        
         w
         i
         0.264
        
        ⁢
        
         exp
         ⁡
         (
         
          9.45
          -
          
           0.1918
            
           C
          
         
         )
        
        ×
        1.163
         
        l
       
       
        
         v
         
          1
          ⁢
          i
         
        
        ⁢
        
         h
         
          1
          ⁢
          i
         
        
        ⁢
        ρ
        ⁢
        Sm
       
      
     
     ⁢
     
      
       T
       
        i
        ,
        
         j
         -
         1
        
       
       0.213
      
      (
      
       
        T
        
         i
         ,
         
          j
          -
          1
         
        
       
       -
       
        T
        c
       
      
      )
     
    
    +
    
     T
     
      i
      ,
      
       j
       -
       1
      
     
    
   
  
  ,
 

wherein k0 is an influence coefficient of nozzle shape and spraying angle;
(S8.6) determining whether an in-equation j<m is established, if yes, enabling j=j+1, and then turning to step S8.5; otherwise, turning to step S8.7;
(S8.7) obtaining a temperature Ti,m of a mth section by iterative calculation;
(S8.8) calculating an inlet temperature Ti+1r of an i+1th rolling stand: Ti+1r=Ti,m;
(58.9) calculating an outlet temperature Ti+1 of the i+1th rolling stand, wherein, T
    
     i
     +
     1
    
   
   =
   
    
     T
     
      i
      +
      1
     
     r
    
    +
    
     
      
       1
       -
       
        (
        
         
          ε
          
           i
           +
           1
          
         
         /
         4
        
        )
       
      
      
       1
       -
       
        (
        
         
          ε
          
           i
           +
           1
          
         
         /
         2
        
        )
       
      
     
     ·
     
      
       
        K
        
         i
         +
         1
        
       
       ⁢
       ln
       ⁢
       
        (
        
         1
         
          1
          -
          
           ε
           
            i
            +
            1
           
          
         
        
        )
       
      
      
       ρ
       ⁢
       SJ
      
     
    
   
  
  ;
 

(S8.10) determining whether the in-equation i<n is established, if yes, enabling i=i+1, and then turning to step S8.3; otherwise, turning to step S8.11; and
(S8.11) obtaining an outlet temperature Ti of each rolling stand.