Development of portable auto peel strength tester for 3PE coating

FENG Shaoguang; YAN Dechun; LI Rui; LI Dongyang; ZHANG Wei; ZHAO Guoxing; HOU Yu

doi:10.6047/j.issn.1000-8241.2017.02.012

Oil & Gas Storage and Transportation > 2017 > 36(2): 199-203. > DOI: 10.6047/j.issn.1000-8241.2017.02.012

FENG Shaoguang, YAN Dechun, LI Rui, LI Dongyang, ZHANG Wei, ZHAO Guoxing, HOU Yu. Development of portable auto peel strength tester for 3PE coating[J]. Oil & Gas Storage and Transportation, 2017, 36(2): 199-203. DOI: 10.6047/j.issn.1000-8241.2017.02.012

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Development of portable auto peel strength tester for 3PE coating

1.
PetroChina Pipeline R & D Center/National Engineering Laboratory for Pipeline Safety
2.
Maintenance and Repair Center of Mandalay Management Division, CNPC South-East Asia Pipeline Company Limited (SEAP)
3.
PetroChina Pipeline Company

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Received Date: December 22, 2015
Revised Date: December 22, 2016
Available Online: August 20, 2023
Published Date: April 24, 2016

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Abstract

Abstract

Peel strength is a key performance index for 3PE coatings. However, on-site testing of the peel strength is susceptible to impacts of surrounding conditions and testing techniques. Currently, spring scales or dynamometers are used extensively to measure the peel strength of 3PE coatings manually. These techniques are characterized by incapability in accurate control over peeling velocities and angles, missing of testing curves, limited testing areas and poor safety performances. With consideration to principles related to structural design with isosceles triangle, holder can be maintained around the central axis of the isosceles triangle to maintain the angle between the peeling and the pipe surface at 90°. In addition, by using the worm gear and speed reduction motor, the peeling speeds can be controlled accurately. With infrared devices deployed to monitor changes in temperatures in real time, temperatures around the peeling operations can be recorded continuously. In this way, the entire peeling process can be performed automatically with testing curves recorded to output on site. The new system can significantly enhance accuracy, repeatability and safety of on-site peeling operations, eliminating problems related to low accuracy and poor safety performances of manual operations. On-site performances of the proposed system are satisfactory.
- 3PE coating,
- peel strength,
- portable,
- auto peel strength tester,
- field,
- safety

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References (20)

References

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