Coating for isothermal forging die protection and application

• Main Authors: DUAN SUJIE, ZOU FENG, WANG JIANFENG, FENG CHI, LUO HONGCHUN
• Format: Patent
• Language: Chinese; English
• Published: 17.01.2023
• Subjects: ADHESIVES; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; POLISHES; USE OF MATERIALS THEREFOR; WOODSTAINS

The invention provides a coating for isothermal forging die protection and application. The coating is prepared from the following components in parts by weight: 20 to 30 parts of glass powder A, 5 to 10 parts of glass powder B, 2 to 10 parts of TiO2, 0 to 15 parts of MgO, 0 to 5 parts of CaO, 0 to 20 parts of Cr2O3, 1 to 5 parts of kaolin, 0 to 5 parts of albite, 20 to 30 parts of solvent and 5 to 10 parts of binder. The coating disclosed by the invention can prevent the die from being oxidized in a high-temperature long-time heating process, and also can play an auxiliary lubricating role in isothermal forging, so that the abrasion of the die and the generation of surface cracks are reduced; after isothermal forging is completed, most of the coating can still be firmly attached to the surface of the die, the continuous protection effect can be achieved in the following isothermal forging process, the accumulated protection time can reach 60-80 hours, and therefore the service life of the die is remarkably p