FSWTechnologies
What is friction stir welding (FSW), and where is it used?
The FSW process, GOST ISO 25239 requirements for joint design, procedure qualification, quality control and industrial applications.
Sespel KNOWLEDGE BASE
Engineering insights into technology and equipment
Clear technical explanations of industrial equipment: construction, operating principles, selection criteria and practical use.
14articles
8topics
Tank containersTank containers
Tank containers: construction, types and applications
What a tank container consists of, and why designs for liquids, gases and cryogenic cargoes differ.
T11 / T14 / T50 / T75Tank containers
T11, T14, T50 and T75 tank containers: what is the difference?
Why T11, T14, T50 and T75 designations serve different transport tasks and are not interchangeable.
Cryogenic T75Cryogenic equipment
How a T75 cryogenic tank container is built
Inner vessel, outer shell, insulation and the factors determining cryogenic transport system efficiency.
Industrial silosStorage equipment
Industrial silos: construction, types and capacity selection
The components of a silo, differences between designs, and the data determining useful capacity and reliable discharge.
Silo materialsStorage equipment
Aluminium or stainless steel silo: which should you choose?
Comparing materials by weight, corrosion resistance, hygiene requirements, maintenance and life-cycle cost.
Axle assembliesAxles and suspension
Semi-trailer axle assembly: construction and operation
Axle assembly components, the loads they carry, and why the axle, brakes and suspension work as one system.
Air suspensionAxles and suspension
How semi-trailer air suspension works
Air springs, ride height regulation, dampers and trailing arms, with the main signs of faults.
Shut-off valvesValves and fittings
Industrial shut-off valves: types and applications
Differences between shut-off, check, safety and breather valves, and the engineering criteria used to select them.
Aluminium bridgesBridges and infrastructure
Aluminium bridges and overpasses: advantages, design and service life
Where aluminium structures offer advantages, accounting for weight, corrosion, joints, fatigue and maintenance.
FSW equipmentMachine tools
Friction stir welding (FSW) equipment for tank structures
Industrial FSW systems for tank structures: machine configuration, rotary tables, welding unit, ultrasonic inspection, fixtures and CNC control.
LNG and cryogenicsCryogenic equipment
Liquefied natural gas (LNG): storage, transport and applications
The LNG chain from liquefaction to end user, differences from CNG, and key requirements for cryogenic tanks, transport and fuel systems.
CNC rotary tablesMachine tools
CNC rotary tables: construction, specifications and applications
Why large machines need rotary tables, how faceplates, encoders, locking and master–slave drives work, and which parameters determine selection.
Profile silosStorage equipment
Aluminium profile silos: construction, advantages and capacity selection
Extruded aluminium profile silo construction, differences from sheet-metal shells and capacity selection parameters.