TIG welding · Argon arc
Broader fusion profile in the illustrated sample.
PANSTAR CORE TECHNOLOGY
Laser Welding Technology
Automatic laser welding forms the HEXCBLOC welded plate pack. Controlled weld penetration creates the joints that keep hot and cold flow channels separate.
- Concentrated heat input
- Narrow heat-affected zone
- Controlled penetration
CONSTRUCTION
HEXCBLOC construction
- 1
Plate pack
- 2
Upper & lower headers
- 3
Removable side panels
- 4
Panel seals
- 5
Columns
- 6
Support feet
WORKING PRINCIPLE · INTERACTIVE 3D
Open the block.
Follow the flow.
Rotate the assembly, open the casing or switch to Flow principle to follow the two separate circuits.
PLATE TECHNOLOGY
Laser Welding Technology
PANSTAR · Laser Welding
Concentrated fusion profile in the illustrated sample.
Concentrated heat input
A focused laser can produce a deep, narrow weld with less heat spreading into the surrounding plate.
Narrower heat-affected zone
Localized heating helps limit distortion and thermal changes beside the weld.
Controlled penetration
Joint fit-up and welding parameters are selected to achieve the required fusion through the joint.
PENETRATION & JOINT STRENGTH
Deep fusion. Joint strength testing.
2 mm penetration in the shown sample
PANSTAR’s supplied material reports 2 mm weld penetration and specimen weld strength above the parent material. The photographs illustrate the sample and test setup; a numerical strength result is not provided.
Penetration alone does not establish strength. Production acceptance depends on material, joint geometry, welding procedure and inspection results.
Images and sample claims: PANSTAR supplied technical material. Laser welding principles · TWI
PLATE WELDING · ANIMATED PRINCIPLE
How the welded channels are formed.
Alternate plate edges are welded to form separate hot and cold channels. The animation shows the weld sequence and open flow passages.
PLATE-EDGE WELDING GEOMETRIES
Welded Plate Edge Construction
The exact joint geometry should be confirmed from the approved manufacturer drawing for the equipment being assessed.
Butt-welded formed edge
The formed lips meet at a butt weld. Joint accessibility, surface continuity and cleanability depend on the approved plate profile, weld execution and service conditions.
Alternative end-welded edge geometry
Depending on geometry, fluid properties and operating conditions, a residual recess may influence cleanability and deposit behaviour. The actual section must be verified from the relevant production drawing.
Assess the actual joint
Cleanability and deposit behaviour depend on the actual recess dimensions, fluid composition, temperature, alloy, weld quality, velocity and cleaning method. The schematics support an engineering discussion; they do not establish the construction or performance of a specific third-party unit.
The alternative end-welded schematic is illustrative. It is not a verified production section for a specific third-party product. Schematics are not to scale and do not show calculated flow fields.
Technical references: Alfa Laval · C-Weld · Alleima · Crevice corrosion
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