Manufacture of mouthpiece for ceramic honeycomb extrusion

Abstract

Abstract PURPOSE:To accelerate the flow rate of a starting material gap passing through a mouthpiece member for extrusion and increase the speed of deposition of an erosion-resistant material on the surfaces of mold grooves by allowing the reactive gas producing the wear-resistant material to flow from the mold grooves into ceramic body supply holes. CONSTITUTION:A mouthpiece member 4 having mold grooves 3 and a plurality of ceramic body supply holes 2 communicating respectively with the mold grooves 3 is formed, and a wear-resistant material 21 i applied by a chemical vapor deposition method at least on the surfaces of the mold grooves 3 of the mouthpiece member 4. In this instance, a reactive gas producing the wear- resistant material 21 is allowed to flow from the mold grooves 3 into the ceramic body supply holes 2. By this method, portions heavily worn can be coated with the wear-resistant material 21 during a short period of time, and the deformation of the mouthpiece member 4 can be minimized.

Inventors

• 👤 Kazuo Suzuki
• 👤 和夫 鈴木
• 👤 Kenji Arai
• 👤 健治 荒井
• 👤 Masayuki Matsuzaki
• 👤 松崎　正幸

Bibliographic Details