(linear elastic, elasto-plastic and viscous-plastic)
with the approach of modern assessment concepts of
design guidelines and norms for brittle fracture;
¨ fatigue (at the environmental temperature, at high or low temperatures, or with the cyclic variation of temperature);
¨ inspection works on industrial products that operate in the hydro-energetic industry;
welding behavior of metallic and nonmetallic materials;
of the electric arc welding procedures for products made of
various base materials (metallic and nonmetallic);
welding and thermal spraying of structures and parts;
brazing, including zinc components;
the beneficiary in welding,
hardfacing, soldering, and
software in the field of welding
operates the following testing, examination, and analyses:
or brazed joints
analyses to determine the structural features of ferrous and
nonferrous materials through destructive methods
analysis of welded joints of ferrous and nonferrous materials through
analysis on metallic materials and welded joints through nondestructive
methods – metallographic replicas
examination, and analyses of thermoplastic materials
of textile materials
testing of textile materials straps.
testing of laminated, wrought, and cast products and of welded joints:
LIEA has a mobile laboratory equipped with devices for modern nondestructive penetrating radiation
testing. The mobile laboratory, authorized by CNCAN, allows the progress of examination activities with
radiation at the venues required
by the beneficiary.
TESTING OF THERMOPLASTIC MATERIALS
Ultrasound testing of welded joints for high-denisty polyethylene pipes (PEHD), in accordance with procedure PS-LIEA-02-07, approved by ISCIR INSPECT (no. 19884-3L / 06.07.2004).
The nondestructive testing can be achieved both in the laboratory or production rooms and on site, by the mobile control laboratory of the Institute.
Testing for internal pressure at a consistent temperature of pipes and welded joints of pipes made of thermoplastic materials.
The testing can be achieved in a thermostat bath (max. 96°C) or in an oven (max. 120°C). During the testing the pressure and temperature are controlled by two microcontrollers, and the whole process is controlled by a computer.
The testing procedure is based on the SR ISO 1167:1993 and SR EN 921+AC:1997 standards.
Dr.eng. Doru Romulus Pascu
Telephone: 0256 / 491829 int. 130 Fax: 0256 / 492797 E-mail: email@example.com
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