Title:
樹脂チューブの曲げ加工方法
Document Type and Number:
Japanese Patent JP6809836
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a method for bending a resin tube with high accuracy that can bend the resin tube in a short time and prevent it from returning to the original shape after the bending.SOLUTION: The present invention provides a method for bending a resin tube. Inside a resin tube 1, encapsulated is a saturated vapor 12 of a second temperature equal to or higher than a crystallization temperature of a resin material and equal to or lower than a melting point of it, and it is heated to a temperature equal to or higher than a glass transition temperature of the resin material, and the outside of the resin tube 1 is also heated to a first furnace temperature equal to or higher than the glass transition temperature of the resin material and equal to or lower than the melting point of it, to conduct a molding process S3, thus holding it at a temperature equal to or higher than the crystallization temperature for a fixed time.SELECTED DRAWING: Figure 8
Inventors:
Hirokazu Abe
Application Number:
JP2016153202A
Publication Date:
January 06, 2021
Filing Date:
August 03, 2016
Export Citation:
Assignee:
Kurashiki Kako Co., Ltd.
International Classes:
B29C53/08
Domestic Patent References:
| JP2007223043A | ||||
| JP2001009903A | ||||
| JP2003531038A |
Foreign References:
| US20130167964 |
Attorney, Agent or Firm:
Maeda patent office