Verfahren zur Herstellung von Warmgeschmiedetem Material

Details

Veröffentlichungs-Nr.

EP4786070

Anmeldetag

14. November 2024

Veröffentlichung

11. September 2025

Rechtsraum

EP

Abstract

When hot forging is performed on a hot-forging material having a surface to which a heat-resistant insulating material has been bonded, occurrence of defects on the surface of the resultant hot-forged product, the defects caused due to the bonding of the heat-resistant insulating material, is suppressed. A hot-forged product manufacturing method includes: a heating step that heats an unheated material to be hot-forged to a hot forging temperature in a heating furnace, to obtain a heated material; a heat-resistant insulating material bonding step that bonds a heat-resistant insulating material made of inorganic fibers to at least part of a surface of the heated material extracted from the heating furnace, to obtain a hot-forging material; and a hot forging step that compresses the hot-forging material partially or entirely by using a die, an anvil, or a tool, to form the hot-forging material into a predetermined shape, wherein after a liquid glass lubricant that is free of styrene acrylic resin or that contains styrene acrylic resin of less than 5 mass% is applied to the surface of the inorganic-fiber heat-resistant insulating material, the surface to be bonded to the heated material, and is dried, the inorganic-fiber heat-resistant insulating material is bonded to the heated material.

Anmelder

Firma

Proterial, Ltd.

Land

🇯🇵 Japan