Title:
METHOD FOR PREPARING TIRE CURING BLADDER
Document Type and Number:
WIPO Patent Application WO/2021/093101
Kind Code:
A1
Abstract:
The present invention relates to the technical field of preparation of tire curing bladders, and disclosed is a method for preparing a tire curing bladder. Components of the tire curing bladder are butyl rubber, carbon black, white carbon black, aluminum oxide, chloroprene rubber, stearic acid, paraffin, and a curing resin. Plastication and segmented mixing are performed in an internal mixer, then rubber filtering, open milling, tableting, and injection curing are performed to prepare the tire curing bladder, and the speed ratio between rotors in the internal mixer is periodically and alternately changed. Compared with the prior art, the present invention has the beneficial effects that the method for preparing the tire curing bladder is optimally designed, the rotational speed between the first rotor and the second rotor is alternately changed to generate a speed difference, the rubber material mixing effect is improved, the excessive temperature difference is avoided, and the rubber material temperature uniformity is promoted; raw rubber plastication is performed, the raw rubber plasticity is improved, a reinforcing filler is added in a segmented mode, a rubber filtering operation is performed, and the rubber material uniformity is improved; injection curing molding is performed, and finally, the goal of improving the production efficiency and quality of the tire curing bladder is implemented.
Inventors:
ZHAO HUIYAN (CN)
ZHAO HAILIN (CN)
FAN PING (CN)
ZHANG XUEYONG (CN)
LIU TAO (CN)
ZHAO HAILIN (CN)
FAN PING (CN)
ZHANG XUEYONG (CN)
LIU TAO (CN)
Application Number:
PCT/CN2019/127819
Publication Date:
May 20, 2021
Filing Date:
December 24, 2019
Export Citation:
Assignee:
YONGYI RUBBER CO LTD (CN)
International Classes:
C08L23/22; B29D23/24; C08K3/04; C08K3/22; C08K5/09; C08K7/26; C08K13/04; C08L11/00
Foreign References:
| CN105968593A | 2016-09-28 | |||
| CN108162226A | 2018-06-15 | |||
| JP2016113584A | 2016-06-23 |
Attorney, Agent or Firm:
BTA INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
Download PDF:
Previous Patent: PHOTOCHROMIC DEVICE AND PHOTOSENSITIVE LIQUID CRYSTAL DISPLAY
Next Patent: PERMANENT MAGNET FIXING STRUCTURE
Next Patent: PERMANENT MAGNET FIXING STRUCTURE