KOR
ENGBusiness Area
Pre-heating
As part of welding processes, weld and welding base metal of the weld metal to be deposited is heated above a certain temperature to which the operation says. Preheat the fundamental purpose of conducting the heat affected zone of the weld and (Heat Affected Zone) is to prevent the cracks.
Tank, Structure, Pipe PWHT etc.
Stress relief anneal : The main purpose to remove residual stresses after heat treatment
ASME, BOILER AND PRESSURE VESSEL CODE : STRESS RELIEF ANNEALING
PWHT The relief of welded residual stress, increase of resistance toward stress corrosion
Lagging on the outer surface of the TANK to insulate the inside into the Firing work High efficiency High Velocity Gas Burner (Infrared flame detecto), Fuel Gas(L.P. Gas carburetor), Using a temperature recorder
GAS Firing
Spherical Tanks for Operation TANK PROJECT
PWHT shall be performed after completion of welding for shell plate, supporting structure(columns, bracing, etc.) and attachments welded to pressure parts directly, and NDE shall be completed prior to PWHT. The cover plate of manhole shall be taken off during PWHT. Internal and external accessories such as stairway platform, piping and instruments shall be installed after PWHT.
Spherical Tank PWHT Major Experience
SK New FCC Spherical Tank P.W.H.T in SK Energy, AOL Aromatic Project in HHI ID 18.7M Ball Tank 6 Sets in SAMSUNG, Spherical Tank Firing for P.W.H.T in KH PETROTEC
Applied spherical tank
- Sphere inside diameter
- Shell thickness
- Empty weight of tank
- Number of Support
Column
- Number of Nozzle
- Type of Tank
- Applicable Standard
and Code
Applied heat treatment program
- Heating Rate
- Holding Temperature
- Holding Time
- Cooling Time
BALL TANK GAS Firing 순서
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Gas burner TEST for PWHT
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Gas burner & Blower Setting
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Setting for Equipment
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Setting for Heat-insulating & Equipment
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Installation of Equpment
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Preparation work & Heat-insulating
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OUT SIDE Insulating Work Cover
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Internal Gas-Firing
Temporarily Furnace PWHT
From the know-how about furnace for fifteen years Furnace we design, manufacture, install environment-friendly, high efficiency large& small size annealing furnace fitted site condition and specification on the work.
Through the high technology, we invest T&D(Technical Development) by leader of Furnace Heat Treatment and work on the repair and supply tools and materials.
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Fabrication & Installation for Temporarily Furnace
Product (structure) to improve the quality of work before the heat treatment of welded joints is the way the local heat (electric) heat treatment in the furnace using the 1Piece is required.
In our large-scale production and heat treatment furnace automation equipment in the driving experience and accumulated technology and heat treatment to reduce the deviation of the temperature inside the automatic temperature control system equipment and have the ability to operate and it is required by Owner Spec 'enough to meet the heat treatment is performed.
We strive to create new and creative values to actively reflect customer opinions and impress customers.
Through excellent technology development and an efficient work system, we are not afraid of change, and we are innovatively improving the system through new thinking and practice.
Contact Us
Phone: 052-249-3510
Fax: 052-249-3515
Email: byseo@totalkor.co.kr
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