Aqueous lubricant for plastic working of metal material and having superior gas clogging resistance and post-moisture absorption workability
AssigneeNihon Parkerizing Co., Ltd.
InventorsMasaru Mochizuki, Manabu Kumagai, Yuta Kobayashi
Life of this patent
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Abstract
A water-based lubricant for plastic working of a metallic material is obtained by adding to a water-based medium: (A) a polymer and/or a salt thereof containing a carboxylic acid or a derivative thereof as a constituent monomer; (B) an oxoacid of tungsten, of silicon, or of phosphorus, or a condensate thereof, and/or a salt thereof; (C) a hydroxide of an alkali metal; and (D) a lubricating component (D), and the solid content weight ratio (A)/[(A)+(B)+(C)+(D)] is 0.05 to 0.4.
Claims17
A water-based lubricant for plastic working of a metallic material, wherein the water-based lubricant is obtained by adding to a water-based medium:
- (A) a polymer and/or a salt thereof containing a carboxylicacid or a derivative thereof as a constituent monomer;
- (B) an oxoacid of tungsten, an oxoacid of silicon, or an oxoacid of phosphorus, or a condensate thereof, and/or a salt thereof;
- (C) lithium hydroxide;
- and
- (D) a lubricating component, and
- wherein a solid content weight ratio (A)/[(A) (B)+(C)+(D)] is 0.05 to 0.4 and a molar ratio (B)/(C) of the component (B) and the component (C) is 0.3 to 2.7.
A method for producing a water-based lubricant for plastic working of a metallic material, the method comprising adding to a water-based medium:
- (A) a polymer and/or a salt thereof containing a carboxylic acid or a derivative thereof as a constituent monomer;
- (B) an oxoacid of tungsten, an oxoacid of silicon, or an oxoacid of phosphorus, or a condensate thereof, and/or a salt thereof;
- (C) lithium hvdroxidea hydroxide of an alkali metal:
- and (D) a lubricating component (D), wherein a solid content weight ratio (A)/[(A)+(B)+(C)+(D)] is 0.05 to 0.4, and a molar ratio (B)/(C) of the component (B) and the component (C) is 0.3 to 2.7.
Dependencies are inferred from the claim text.