Jet hole plate, liquid jet head, and method for manufacturing jet hole plate

• Main Authors: SODETAI TOMOKI, HIRATA MASAKAZU, TAKANO KENJI
• Format: Patent
• Language: Chinese; English
• Published: 12.07.2019
• Subjects: CORRECTION OF TYPOGRAPHICAL ERRORS; i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; LINING MACHINES; PERFORMING OPERATIONS; PRINTING; SELECTIVE PRINTING MECHANISMS; STAMPS; TRANSPORTING; TYPEWRITERS

Provided herein are a jet hole plate, a liquid jet head, a liquid jet recording apparatus, and a method for manufacturing a jet hole plate that can achieve a long life. A jet hole plate according to an embodiment of the present disclosure is a jet hole plate for use in a liquid jet head. The jet hole plate includes a metal substrate having provided therein a plurality of jet holes. The metal substrate has a principal surface having outlets for the jet holes. The principal surface has a surface roughness (arithmetic mean roughness Ra) that is smaller in outlet edge regions of the jet holes thanin surrounding regions around the outlet edge regions. 本发明的目的在于提供能够实现长寿命化的喷射孔板、液体喷射头、液体喷射记录装置以及喷射孔板的制造方法。本公开的一种实施方式所涉及的喷射孔板是用于液体喷射头的喷射孔板。该喷射孔板具备设有多个喷射孔的金属基板。金属基板具有设有各喷射孔的喷出口的主面。在该主面，各喷射孔的喷出口端缘区域的表面粗糙度(算术平均粗糙度Ra)比处于喷出口端缘区域的周围的周围区域的表面粗糙度(算术平均粗糙度Ra)小。