Metalworking and machining fluids
View Patent ↗Improved boron-based metal working and machining fluids. Boric acid and boron-based additives that, when mixed with certain carrier fluids, such as water, cellulose and/or cellulose derivatives, polyhydric alcohol, polyalkylene glycol, polyvinyl alcohol, starch, dextrin, in solid and/or solvated forms result in improved metalworking and machining of metallic work pieces. Fluids manufactured with boric acid or boron-based additives effectively reduce friction, prevent galling and severe wear problems on cutting and forming tools.
1. A method of providing lubricity in a forming or machining fluid, comprising the steps of:
providing a forming or machining fluid;
providing a boron compound;
dissolving said boric compound in a solvent selected
from the group consisting of methanol, ethanol, isobutyl alcohol, pyridine, isoamyl alcohol, n-propanol, 2-methylbutanol, glycerol, lactate esters and combinations thereof;
mixing said boron compound and solvent in the forming or machining fluid at a concentration of from about 2% to about 24% of said solvent by weight;
wherein
said boron compound is boric acid;
said boron compound is in the form of a nanometer-sized particulate and; the forming or machining fluid is selected from the group consisting of n-alcohols, polyalkylene-glycols, polyvinyl alcohol, glycerol, and combinations of any two or more thereof.
2. A method of providing lubricity in a forming or machining fluid, comprising the steps of:
providing a forming or machining fluid selected from the group consisting of polyalkyleneglycols, polyvinyl alcohol, glycerol, and combinations of any two or more thereof;
dissolving boric acid in a solvent selected from the group consisting of methanol, ethanol, isobutyl alcohol, pyridine, isoamyl alcohol, n-propanol, 2-methylbutanol, glycerol, lactate esters and combinations thereof; and
mixing the solvent and dissolved boric acid in the forming or machining fluid at a concentration of from about 2% to about 24% by weight.
3. The method of claim 2 , wherein the solvent is selected from the group consisting of methanol, ethanol, isobutyl alcohol, pyridine, isoamyl alcohol, n-propanol, 2-methylbutanol, glycerol, lactate esters and combinations thereof.
4. The method of claim 2 wherein the method further comprises spraying, roll-coating or dipping a metal substrate in the forming or machining fluid.
5. The method of claim 4 wherein the forming or machining fluid and the said boron compound and solvent are introduced simultaneously within an applicator for the purpose of metering the amount or concentration of the forming or machining fluid onto a substrate via a spray application.
6. The method of claim 2 wherein glycerol or a polyalkylene glycol is the forming or machining fluid.
7. The method of claim 2 , further comprising drying the forming or machining fluid to a dry film to provide cooling and lubrication in metal parts stamping operations.
8. The method of claim 2 further comprising drying the forming or machining fluid to a dry film wherein the dry film is capable of being removed with a cold water rinse after a metal forming operation.
9. The method of claim 2 , wherein the forming or machining fluid is a drilling mud.
10. The method of claim 2 , wherein the forming or machining fluid is selected from the group consisting of polyalkyleneglycols, polyvinyl alcohol, and a combination thereof.
11. The method of claim 2 , wherein the solvent is methanol.