Title:
PASTE KNEADING DEVICE
Document Type and Number:
WIPO Patent Application WO/2013/021845
Kind Code:
A1
Abstract:
The present invention prevents operating problems that occur because of gelation inside trochoid toothed gear pumps used in kneading systems for alginate impression materials. In a kneading system for alginate impression materials, a pump main body (housing) and rotors (outer rotor and inner rotor) for a trochoid toothed gear pump for base material paste are manufactured of austenite stainless steel manufactured by a molten steel manufacturing method or a powder sintering method and formed from 0.08% by mass or less C, 1.00% by mass or less Si, 2.00% by mass or less Mn, 0.045% by mass or less P, 0.030% by mass or less S, 10.00 - 14.00% by mass Ni, 16.00 - 18.00 % by mass Cr, 2.00 - 3.00% by mass Mo, and the remainder being Fe as chemical components.
Inventors:
AKAMATSU YASUO (JP)
SATO SHINJI (JP)
SATO SHINJI (JP)
Application Number:
PCT/JP2012/069304
Publication Date:
February 14, 2013
Filing Date:
July 30, 2012
Export Citation:
Assignee:
TOKUYAMA DENTAL CORP (JP)
AKAMATSU YASUO (JP)
SATO SHINJI (JP)
AKAMATSU YASUO (JP)
SATO SHINJI (JP)
International Classes:
A61C9/00; B01F25/62
Foreign References:
| JP2005160779A | 2005-06-23 | |||
| JPH056172U | 1993-01-29 | |||
| JP2008157131A | 2008-07-10 |
Attorney, Agent or Firm:
TAKEZAWA Soichi et al. (JP)
Soichi Takezawa (JP)
Soichi Takezawa (JP)
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Claims: