Aqueous solution lubricant for aluminum cold rolling

Abstract

Compositions related to a water-based lubricant fluid for aluminum cold rolling which is free from measurable particles or oil droplets which can be applied in field production. A single-phase lubricant fluid may include water-soluble polymers, lubricating additives, anti-rust additives, anti-oxidant additives, pH-adjust additives, or combinations thereof.

We claim: 
     
         1 . A lubricant fluid for aluminum cold rolling comprising a single-phase water-based solution, wherein the solution comprises a water soluble polymer. 
     
     
         2 . The lubricant fluid of  claim 1 , wherein the polymer comprises at least one hydrophilic group. 
     
     
         3 . The lubricant fluid of  claim 2 , wherein at least one hydrophilic group comprises ethylene oxide. 
     
     
         4 . The lubricant fluid of  claim 1 , wherein the polymer evaporates at or below 240° C. 
     
     
         5 . The lubricant fluid of  claim 1 , comprising about 10 wt % to about 99 wt % water soluble polymer. 
     
     
         6 . The lubricant fluid of  claim 1 , wherein the solution further comprises at least one lubricant additive. 
     
     
         7 . The lubricant fluid of  claim 6 , wherein at least one lubricant additive is water soluble. 
     
     
         8 . The lubricant fluid of  claim 6 , wherein at least one lubricant additive comprises organic acids or organic phosphoric ester having a carbon chain of C 6 -C 18 . 
     
     
         9 . The lubricant fluid of  claim 6 , comprising about 0.1 wt % to about 10.0 wt % lubricant additive. 
     
     
         10 . The lubricant fluid of  claim 1 , wherein the solution further comprises at least one functional additive. 
     
     
         11 . The lubricant fluid of  claim 1 , wherein at least one functional additive comprises anti-rust additives, anti-oxidant additives, pH-adjusting additives, or combinations thereof. 
     
     
         12 . The lubricant fluid of  claim 11 , wherein the anti-rust additive comprises inorganic or organic phosphorus compounds or derivatives of triazole. 
     
     
         13 . The lubricant fluid of  claim 11 , wherein the pH-adjusting additive comprises ammonia, alkane amines or alkanol amines. 
     
     
         14 . The lubricant fluid of  claim 11 , wherein the lubricant fluid includes the pH-adjusting additive in an amount such that the lubricant fluid has a pH value of about 4.0 to about 9.0 at 25° C. 
     
     
         15 . The lubricant fluid of  claim 11 , comprising about 0.05 wt % to about 5.0 wt % functional additive. 
     
     
         16 . A method of cold-rolling aluminum, comprising application the lubricant fluid of  claim 1  to an aluminum strip.