Title:
3D PRINTING METHOD FOR CRYSTALLINE POLYMER, AND 3D PRINTER
Document Type and Number:
WIPO Patent Application WO/2019/109205
Kind Code:
A1
Abstract:
A 3D printing method for a crystalline polymer comprises: heating a printing head to melt a first crystalline polymer in the printing head; driving the printing head to perform single-layer printing to obtain a molten printed pattern layer; cooling the molten printed pattern layer to make the molten printed pattern layer form a solid-state printed pattern layer comprising an amorphous region; repeating the operations on the top of the cooled printed pattern layer until a printed workpiece consisting of multiple printed pattern layers stacked up and down, a printed pattern layer unit being formed by at least one printed pattern layer; and performing heat treatment on each printed pattern layer unit in the printing process. In the 3D printing method for a crystalline polymer, a printed workpiece having good toughness and good size stability is obtained by means of a method in which printing is performed while heat treatment is performed. Also provided is a 3D printer.
Inventors:
DONG XIANMING (CN)
HAN CHENGCHAO (CN)
QIN SHAOWU (CN)
HAN CHENGCHAO (CN)
QIN SHAOWU (CN)
Application Number:
PCT/CN2017/114425
Publication Date:
June 13, 2019
Filing Date:
December 04, 2017
Export Citation:
Assignee:
INTAMSYS TECH CO LTD (CN)
International Classes:
B29C64/118; B29C64/20
Domestic Patent References:
| WO2017108477A1 | 2017-06-29 |
Foreign References:
| CN107139455A | 2017-09-08 | |||
| CN107160676A | 2017-09-15 | |||
| CN103707507A | 2014-04-09 | |||
| CN105690778A | 2016-06-22 |
Attorney, Agent or Firm:
ZHONGDING INTELLECTUAL PROPERTY AGENCY (CN)
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