US 11,952,550 B1 · Lubricant for copper alloy die-casting die and preparation and use methods thereof

Abstract

A lubricant for a copper alloy die-casting die is mainly prepared by an inorganic nano-powder, an organic substrate material, and an organic resin material. In the present disclosure, the use of oil-based lubricants as a basis and the reduction of the content of oil in the lubricant yield improved oil selection and proportion, which cooperates with the corresponding higher proportion of inorganic powder material mixture and a more suitable spraying amount applied on the surface of the die to exert a good lubricating effect on products with complex and irregular shapes in the inner cavity of a die-casting die. At the same time, the production cost of the lubricant is low. Copper alloy die castings produced after a lubrication process have a high yield rate and smooth surfaces without casting defects.

Claims7

Dependent claims

A lubricant for a copper alloy die-casting die, prepared by mixing the following components in parts by weight:

20-30 parts of an inorganic nano-powder,
50-65 parts of an organic substrate material, and
6-13 parts of an organic resin material;
wherein the organic substrate material accounts for 50-65%, in parts by weight, of all substances of the lubricant;
the components of the inorganic nano-powder comprise all of the following and have the following particle sizes:
molybdenum dioxide:
70-85 nm,
silicon dioxide:
50-70 nm,
tungsten nitride:
80-110 nm,
diboron trioxide:
60-70 nm,
hexagonal boron nitride:
90-110 nm;
the lubricant is sprayed onto the surface of the die at the spraying amount of 0.0001 ml/cm2-0.6 ml/cm2.

13 more elements

Dependencies are inferred from the claim text.

Lubricant for copper alloy die-casting die and preparation and use methods thereof

Life of this patent

Lubricant for copper alloy die-casting die and preparation and use methods thereof

Life of this patent

Abstract

Claims7