公开(公告)号：JP2012197479A

公开(公告)日：2012-10-18

申请号：JP2011062031

申请日：2011-03-22

Applicant: Air Water Inc ,  エア・ウォーター株式会社

Inventor： ISHIHARA HIROKI ,  MATSUO SHINJI

IPC: C23C8/38 ,  C23C8/02

Abstract: PROBLEM TO BE SOLVED: To provide a surface hardening device for a ferrous material, which can reduce treatment time, further, can suppress the consumption of an atmospheric gas, and can extend the maintenance period of a furnace wall as well.SOLUTION: The surface hardening device includes: an atmospheric pressure plasma decomposition apparatus 1 into which an ammonia-containing gas is introduce, and which decomposes the ammonia-containing gas with plasma to generate a nitrogen radical and/or nitrogen ion-containing gas; and a heating treatment furnace 2 in which the ferrous material 3 is made to be present in heating space 24 under atmospheric pressure, the nitrogen radical and/or nitrogen ion-containing gas is introduced, and which makes them act on the ferrous material 3 to form a nitrided hardened layer on the surface thereof. Thereby, by glow discharge of high output, an ammonia decomposition rate is improved, a thick nitrided hardened layer can be obtained in a short time, the reduction of treatment time can be achieved compared with the conventional case, further, the using amount of an ammonia gas is reduced, and the damage of a furnace wall can be remarkably reduced as well.

Abstract translation: 要解决的问题：为了提供可以减少处理时间的黑色金属材料的表面硬化装置，进一步可以抑制大气气体的消耗，并且还可以延长炉壁的维护周期。 解决方案：表面硬化装置包括：大气压等离子体分解装置1，其中引入含氨气体，并且用等离子体分解含氨气体以产生氮自由基和/或含氮离子的 加油站; 以及在大气压下使含铁材料3存在于加热空间24中的加热处理炉2，导入含氮自由基和/或含氮离子的气体，使其作用于铁系材料3〜 在其表面上形成氮化硬化层。 因此，通过高输出的辉光放电，氨分解率提高，可以在短时间内获得厚的氮化硬化层，与常规情况相比，可以实现治疗时间的缩短，此外， 氨气减少，炉壁的损坏也会显着降低。 版权所有（C）2013，JPO＆INPIT

公开(公告)号：JP2006320400A

公开(公告)日：2006-11-30

申请号：JP2005144322

申请日：2005-05-17

Applicant: AIR WATER INC

Inventor： MATSUO SHINJI ,  AIDA SHINJI ,  ITO SHIGEKI

IPC: A61M25/00 ,  A61L29/00

Abstract: PROBLEM TO BE SOLVED: To provide a method of manufacturing a catheter of which both of antithrombogenicity and smoothness are improved more than ever. SOLUTION: In the method of manufacturing a catheter, a base material whose main component is a thermoplastic elastomer is coated with a polyethyleneglycol and then plasma treatment and heat treatment are executed. In this case, it is preferable to plasma-treat a base material surface before coating the base material with the polyethyleneglycol. It is also preferable to coat the base material with the polyethyleneglycol by immersing the base material in the polyethyleneglycol solution. It is preferable that the thermoplastic elastomer used for the base material has a polyamide as a hard segment and a polyether as a soft segment. COPYRIGHT: (C)2007,JPO&INPIT