Welding technology - Import export

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The new non-copper-clad filler rods have excellent wire feed properties, also with very long hose packages and high wire advance speeds. The excellent current transition in the contact nozzle is achieved with these clean wire electrodes by wetting the surface by means of a special additive (takes over the function of the very-thin copper layer). This additionally provides for sufficient corrosion protection, also in case of storage over longer periods. The performance capability of this surface finish becomes clear particularly

A new generation of bright welding wires With the development of WDI PLATINARC, we have succeeded in combining the good properties of copper-plated and non-copper-plated welding wires. The Platinarc welding consumables are characterised by therefore by: Low contact tip wear Best wire feeding properties Minimal silicate precipitation in the weld sea Low splash formation Low copper content in welding fumes Stable electric arc

WDI's welding wire production at the Hamm/Westf. and Rothenburg/Saale /Wettin.Löbejün) sites can look back on a history of almost 50 years. Unalloyed and low-alloyed inert gas and submerged arc wire electrodes have been manufactured at WDI's main plant in Hamm/Westphalia since 1975 and at WDI in Rothenburg in central Germany since 1993. Production at both sites was gradually expanded and today, with a production capacity of up to 60,000 tonnes p.a., is one of the largest production facilities for welding wires in Europe. There is hardly a steel processing company in Germany or Europe that is not familiar with the wire electrodes from Hamm and Rothenburg. Whether for manual welding in steel construction with 15-18 kg spools or for semi-automated and fully automated welding with drums of up to 750 kg wire weight, WDI has the right drum in its range for every application.

The future is lightweight – with Flexweld®. Flexweld®, the unique joining process, offers countless benefits, with one of the biggest advantages being the considerable weight ­reduction in the age of lightweight construction. Moreover, no additional machinery is required to incorporate it into an existing car body assembly line. significant weight saving, which provides long-term reduction in CO2 emissions joins lightweight materials to high-strength metals can be incorporated into existing assembly lines since it is possible to use the same production and welding equipment no additional qualification for workers needed complete system including full feeder and processing technology mixed production possible by adapting the spot weld gun software

They are the pipe made by stainless steel 304,mainly use for the connector.

TECHNOLOGICAL INNOVATION OPENING UP NEW MARKETS The new automated Lipp welding process will again shake up tank construction market just as the well established Lipp double fold system did decades ago. It is a perfect combination of the long experience in metal forming and state of the art welding technology. KEY BENEFITS OF THE LIPP WELDING TECHNOLOGY Automated welding proces, on site Visual weld monitoring and technical documentation Reinforcement ribs for enhanced structural stability and reduced material costs High quality and repeatability Fast installation Choice of different material grades and types CERTIFICATES SPECIFICATIONS OF THE LIPP WELDING TECHNOLOGY BLACK STEEL SPECIFICATIONS OF THE LIPP WELDING TECHNOLOGY STAINLESS STEEL Beside black steel, various grades of stainless steel and duplex steel can be auto welded. In addition to the new potential markets and applications, the Lipp automated welding technology will increase the competitiveness

Our tasks also include joint process optimization with our customers in order to enable more efficient production and thus a reduction in set-up and downtimes. Our spooling systems are a good example of this type of cooperation and continuous further development. We connect the strips using state-of-the-art welding technology and rewind them oscillating on a variety of spools Strip widths from 1.5 mm up to 60 mm Extension of the strip length to more than 200,000 meters in one strip depending on the material Individual laying widths from 100 to 400 mm Special decoiling racks with decoiling widths of 800 mm and maximum decoiling weights of 2,500 kg

Our tasks also include joint process optimization with our customers in order to enable more efficient production and thus a reduction in set-up and downtimes. Our spooling systems are a good example of this type of cooperation and continuous further development. We connect the strips using state-of-the-art welding technology and rewind them oscillating on a variety of spools Strip widths from 1.5 mm up to 60 mm Extension of the strip length to more than 200,000 meters in one strip depending on the material Individual laying widths from 100 to 400 mm Special decoiling racks with decoiling widths of 800 mm and maximum decoiling weights of 2,500 kg

LIPP welded tanks are erected using the LIPP Welding Technology, a unique method of construction enabled by a custom automated rig designed and manufactured by LIPP. This procedure can claim a number of advantages over other traditional welding methods. Firstly, the unique steel profile increases stability and so reduces material costs at the same time. Secondly, the automated endless tape process continually welds layers below in a rotational cycle and reduces the number of on site workers. LIPP Welding Technology enables welding both black steel and stainless steel of different grades, allowing numerous applications. LIPP aims to increase construction efficiency through the implementation of unique techniques and technology, ultimately benefiting customers via a cost effective system. The key facets for the construction of a LIPP storage system are automation, continuously variable tank dimensions, reduced space requirements for onsite construction and increased worker safety.

The core of the technology is the automated welding process, where the tank is simultaneously welded on the inside and the outside. Similar to the Lipp double fold technology the material will be pre formed by Lipp special forming machines and reinforcement ribs are applied for additional stability. By doing so, the wall thickness can be reduced which will have an economic effect on the overall material costs, without compromising structural stability. The process also enables the installation of roofs and other accessories at ground level, which reduces the risk of working at heights. The main application for the new Lipp welding technology is the drinking water sector. However, there is lots of market potential in the food and beverage industry, chemicals and pharmaceuticals as well as other industries. The black steel welding technology enables the installation of bulk silos with huge diameters and volumes, which is a significant improvement compared to today.

Special features of the Lipp welding technology are the automated on site construction of above the ground cylindrical tanks made of various grades of duplex steel, stainless steel and black steel. Moreover, the technology also incorporates the post treatment of the weld and a visualized welding monitoring and the technical documentation of the process. Due to the flexible and mobile concept of the equipment, the installation can either be done on greenfield construction sites but also inside buildings or in places with limited access and working space.

FOR STORING BIOMASS TO BE USED FOR ENERGY PRODUCTION OR ANIMAL FEED The LIPP System is based on a world wide unique and genuinely simple principle of tank production. Steel coils, machines and accessories are transported to the construction site, the production of the tank takes place on site – fast, efficiently and flexibly in height and diameter. In an automated, two stage process, a profile is formed from the steel strip which is joined in a second step – at the same time, the container rotates spirally. The tight and stability supporting connection of the steel band can be effected by the LIPP Double Seam as well as the LIPP Welding Technology. Compact and space saving High functional safety Reduced retention time in the digester Reduced energy losses during storage Low maintenance and durable Automatic feeding Storage losses as a result of oxidation are avoided

SOLUTION TO EFFECTIVELY STORE EXCESSIVE HEAT FROM BIOGAS PLANTS – FROM 2,000 TO 6,000 M³ The LIPP® Thermal Storage Tank is a customized solution to effectively store excessive heat from biogas plants, biomass heating plants, solar plants or other heat sources. The carbon steel tanks are fabricated on site with the patented automated LIPP® Welding Technology. The horizontal MAW welding process enables the infinitely variable production of tanks up to 6,000 m³ volume with horizontal welding only. The large volume, above ground storage tanks are fitted with all necessary safety and operation equipment. Additional, individual components according to client’s specification can be considered. The roof and wall insulation is individually adapted to local conditions. The LIPP® Thermal Storage Tanks operate at atmospheric pressure, at a temperature of up to 95° C and are suitable for use with heating water. No additional nitrogen system necessary.

The LIPP® Large Thermal Storage Tank is a customized solution to effectively store excessive heat from biogas plants, biomass heating plants, solar plants or other heat sources. The carbon steel tanks are fabricated on site with the patented automated LIPP® Welding Technology. The horizontal welding process enables the infinitely variable production of tanks up to 6,000 m³ volume with horizontal welding only. The largevolume, above ground storage tanks are fitted with all necessary safety and operation equipment. Additional, individual components according to client’s specification can be considered. The roof and wall insulation is individually adapted to local conditions. The LIPP® Thermal Storage Tanks operate at atmospheric pressure, at a temperature of up to 95° C and are suitable for use with heating water. Speciality No additional nitrogen system necessary.

High quality, productive longitudinal seam welding calls for the utilisation of advanced, superior technology. This enables us to us to protect and expand our market position despite increasingly fierce competition. Our ELENA® longitudinal seam welders provide unsurpassed technology for welding of longitudinal metallic seams.

TEPROSA GmbH has specialized for many years in the manufacture of sophisticated, precisely fitting laminated cores of exceptionally high quality. In the field of electrical steel sheet, we manufacture individual laminations and sheets for stators and rotors, as well as entire sheet packages stator- or rotor packages) from various steel grades. We process grain oriented electrical steel for generators, transformers and other electrical machinery. Our most common method for packaging the individual laminations is baked enamel technology. Alternatives are welding or bolting of laminations. As a long-standing supplier to various OEMs, the quality of our work is particularly important to us. Therefore, we work according to uniform processes and thus ensure consistent quality and complete traceability of each individual production step.

WDI Spannstahl and its subsidiary nedri Spanstaal B.V in Venlo, Netherlands, are among the most important manufacturers of prestressing steel in Europe.The company has a recognised high level of expertise in the field of prestressing steel production. Since its foundation in 1925, NEDRI Spanstaal BV has gained a respected position and excellent reputation in the field of prestressing steel technology in Europe and far beyond.This expertise is a guarantee of top quality and sustainability when using our products for infrastructure projects, for onshore and offshore structures as well as in precast concrete construction. Our dedicated and experienced employees are the foundation for the perfection of our products. NEDRI Spanstaal BV is certified by Lloyd's Register Quality Assurance in accordance with ISO 9001 - 2008 and is a member of ESIS: European Stress Information Service.

Whether for manual welding in steel construction with 15-18 kg spools or for semi-automated and fully automated welding with drums of up to 750 kg wire weight, WDI has the right drum in its range for every application. Container types for unalloyed and medium-alloyed shielding gas welding wires

Whether for manual welding in steel construction with 15-18 kg spools or for semi-automated and fully automated welding with drums of up to 750 kg wire weight, WDI has the right drum in its range for every application. Container types for unalloyed and medium-alloyed shielding gas welding wires

Whether for manual welding in steel construction with 15-18 kg spools or for semi-automated and fully automated welding with drums of up to 750 kg wire weight, WDI has the right drum in its range for every application. Container types for unalloyed and medium-alloyed shielding gas welding wires

Whether for manual welding in steel construction with 15-18 kg spools or for semi-automated and fully automated welding with drums of up to 750 kg wire weight, WDI has the right drum in its range for every application. Container types for unalloyed and medium-alloyed shielding gas welding wires

Whether for manual welding in steel construction with 15-18 kg spools or for semi-automated and fully automated welding with drums of up to 750 kg wire weight, WDI has the right drum in its range for every application. Container types for unalloyed and medium-alloyed shielding gas welding wires

Whether for manual welding in steel construction with 15-18 kg spools or for semi-automated and fully automated welding with drums of up to 750 kg wire weight, WDI has the right drum in its range for every application. Container types for unalloyed and medium-alloyed shielding gas welding wires

Whether for manual welding in steel construction with 15-18 kg spools or for semi-automated and fully automated welding with drums of up to 750 kg wire weight, WDI has the right drum in its range for every application. Container types for unalloyed and medium-alloyed shielding gas welding wires

Whether for manual welding in steel construction with 15-18 kg spools or for semi-automated and fully automated welding with drums of up to 750 kg wire weight, WDI has the right drum in its range for every application. Container types for unalloyed and medium-alloyed shielding gas welding wires

Whether for manual welding in steel construction with 15-18 kg spools or for semi-automated and fully automated welding with drums of up to 750 kg wire weight, WDI has the right drum in its range for every application. Container types for unalloyed and medium-alloyed shielding gas welding wires

Whether for manual welding in steel construction with 15-18 kg spools or for semi-automated and fully automated welding with drums of up to 750 kg wire weight, WDI has the right drum in its range for every application. Container types for unalloyed and medium-alloyed shielding gas welding wires

Whether for manual welding in steel construction with 15-18 kg spools or for semi-automated and fully automated welding with drums of up to 750 kg wire weight, WDI has the right drum in its range for every application. Container types for unalloyed and medium-alloyed shielding gas welding wires