Title:
PUMPING PIPE
Document Type and Number:
Japanese Patent JP2020133751
Kind Code:
A
Abstract:
To provide a pumping pipe in which only a site that is relatively severely worn and needed to be replaced can be replaced, thereby reducing a maintenance cost.SOLUTION: In a steel pipe 10, a notch part 13 is provided in a high wear region 12a where an inner wall is relatively worn compared to other portions, and a wear resistant member 20 is detachably attached to the notch part 13. The wear resistant member 20 has an outside steel plate 21, and hard layers 40, 40A containing hard chips or hard particles formed on the inside surface of the outside steel plate 21.SELECTED DRAWING: Figure 1
Inventors:
MORITA TAIJI
TAKENAKA KAZUYUKI
SASAKI MAKOTO
OGATA TSUTOMU
TAKENAKA KAZUYUKI
SASAKI MAKOTO
OGATA TSUTOMU
Application Number:
JP2019027775A
Publication Date:
August 31, 2020
Filing Date:
February 19, 2019
Export Citation:
Assignee:
TAISEI CORP
MARUWAGIKEN CO LTD
MARUWAGIKEN CO LTD
International Classes:
F16L9/04; B23K9/04; F16L57/00
Attorney, Agent or Firm:
Tadashige Ito
Tadahiko Ito
Tadahiko Ito