This invention provides a high-temperature wear-resistant, oil-free lubricating
metal-
ceramic composite mold core material for producing antibiotic vials, made from the following raw materials in the indicated
mass fractions:
molybdenum 3%–6%,
titanium 0%–2%,
tungsten carbide 6%–10%,
titanium carbide 20%–25%,
hexagonal boron nitride 1%–5%,
nickel-coated
graphite 2%–4%, with the balance being
nickel. The method for preparing the
metal-
ceramic composite mold core material is as follows:
hexagonal boron nitride powder is dispersed in
anhydrous ethanol and ultrasonically treated; then, powdered
molybdenum,
titanium,
tungsten carbide,
titanium carbide,
nickel-coated
graphite, and nickel are mixed; after wet mixing, a composite
slurry is obtained; the composite
slurry is dried and then placed into a
graphite mold lined with graphite paper for
hot pressing and
sintering; after cooling, the high-temperature wear-resistant, oil-free lubricating
metal-
ceramic composite mold core material for producing antibiotic vials is obtained. The process of this invention is simple and controllable, and the prepared mold core material exhibits excellent self-lubricating and wear-resistant properties at high temperatures, making it suitable for use in the
pharmaceutical industry for producing mold cores for controlled antibiotic vials.