ABOUT everlastwelds WELDING SERVICES, INC
Welding is a process where the study, the dexterity and the skill of the operator still have an essential importance. The right equipment for every type of material is necessary, but they are not enough to have a perfect welding.
SPECIALTY WORK AND FABRICATION
Thus, experience and training become important: with us,
So we can offer you a high quality service on the different types of welds and the most disparate materials, even the most difficult to handle.
MECHANICAL PIPE WORK
the staff is highly qualified and in possession of the appropriate Certifications issued by the Italian Institute of Welding of Genoa for the various welding processes.
CONFINED SPACE WELDING
ervice Welding has been present for over a decade in the provinces of Modena, Bologna, Reggio Emilia, Rovigo, Forlì, Ferrara and Ravenna.
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The collaboration with important companies in the sector allows Service Welding to offer its customers products for welding, and not only, always innovative, customized advice for all industrial sectors and highly qualified services.
Service Welding Emilia Romagna Srl avails itself of many years of experience of its qualified staff to operate in Nonantola and throughout the Emilia Romagna region for the supply of machines and accessories for welding and thermal and plasma cutting.
A team of highly qualified technicians deals with the professionalism of the revision, control, verification or testing of welders of any type.
Service Welding is able to offer its customers solutions for the rental of medium-long term equipment operating, supporting them in the phases of practical investigation.
Service Welding also deals with the design and provision of training courses to obtain the license recognized in the professional field.
The introduction of lead – free alloys has heavily influenced not only the manual welding procedures, but also the duration of the tips that has significantly reduced. The higher percentage of tin contained in the LF alloys and a higher re-melting point make them extremely aggressive in their double action of corrosion (chemical action) and abrasion (mechanical action) and cause an evident shortening of the average life of the tips. The most common drawbacks are the perforation of the outer coating and consequently of the copper core and the lack of wettability of the work area of the tip.
In lead-free alloys, the tin content exceeds by more than 30% that contained in lead-based alloys, this has led to considerable increases in wear on the tips of welders. The effect of the very strong erosion action exerted by the tin on the surface of the tips affects the iron coating, an action strongly influenced by the higher working temperatures often used. The current metallurgical technology used in the construction of the tips, allows only to increase the thickness of the galvanic treatments to protect the heart of the copper tip and avoid a premature end; however, it should be considered that there is a limit beyond which an excess of galvanic iron deposit would impair thermal conduction.
For the most commonly used LF alloys it can be said that their remelting point is greater than about 30 / ° C compared to Sn / Pb alloys, but contrary to the current idea in manual welding operations it is not necessary to set the temperatures of the welders at levels higher than those already used previously.
The ideal working temperature should be maintained around 380 ° C, adapting it from time to time to the different thermal masses in play, but always bearing in mind that it is good that the temperature used is as low as possible.
Among the main variables of a manual welding process is the correct choice of the tip. Compatibly with the size of the welding joints to work on, the tip should be as large as possible. There is an analogy that illustrates the concept well: as in a larger tap is the mouth and the greater the flow of water that comes out, so for a larger welder is the tip and the greater the flow of heat that is in able to convey on the joint. The transmission of heat will be all the more effective as it will be appropriate cleaning and maintenance that ensures good wettability at the tip.
The tips of the welder at first sight are presented as simple objects, with a single body, in reality they are composed of various parts. The heart is made of copper, has the task of bridging between the temperature source of the welder and the welding joint; it is required a high thermal conductivity and for this reason it is this chosen copper that in addition to being a good current conductor is also a good conductor of heat. The copper is galvanically coated with an iron protection, this shirt has the task of providing a high resistance to wear and allow parallel to have an excellent wettability. The thermal conductivity of the iron is lower than that of copper (about five times)
so its thickness is designed to mediate the two required characteristics: give a good degree of protection without reducing the thermal conductivity of the tip. A galvanic chrome coating follows, which has the task of delimiting the wettable area, that is the work area of the tip that consequently requires to be clean and always tin-plated, to preserve the wettability of the tip and the efficiency in transferring the heat. The wettability of the tip is guaranteed by the formation of an intermetallic phase of a few microns between the facing iron and the tin of the soldering alloy. Because of the difficulty inherent in the process that leads to the coating, the geometry of the tip influences the thickness of the coating because the finer the tip and the more problematic the galvanic deposit of iron on the copper becomes.
Made of super-rapid cobalt steel (HSS-E) , the A723 tip has a glossy surface with a bronze-colored finish, ensuring a high hardness so as to keep the cutting edge alive under extreme stress conditions. The particular geometry favors a safe centering, while the sharp peripheral corners cut the pasty material in the peripheral area of the welding. The tips are characterized by a sturdy core to ensure greater resistance and safe penetration in difficult conditions. The reduced evacuation compartments also give stability in the manual execution of holes in thin sheets and panels.
The HSS for drilling thin sheets and panels are available in different standard diameters for the common sizes of rivets, screws and bolts. The A123 range features a 120 ° head angle and a reduced helix for easy penetration and rigidity in portable drill applications. The absence of the lower rake angle further increases stability during drilling and tip output, so we will have a higher quality hole. The narrowed core in the final part guarantees excellent self-centering properties , while the steam-hardened surface improves the yield considerably and reduces the possibility of sticking the cutting edge. A double-ended version (A119) is also available.
Best Quality Work
Service Welding everlastwelds avails itself of many years of experience of its qualified staff to operate in Nonantola and throughout the everlastwelds region for the supply of machines and accessories for welding and thermal and plasma cutting
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+61 7 7010 5629
TECHNICAL COMPETENCE AND HIGH PROFESSIONALISM
The Service everlastwelds staff is highly qualified and continuously follows training courses tailored to the different professional skills.
The collaboration with important companies in the sector allows Service Welding to offer its customers products for welding ,
varieties of services
Service Welding, active in Nonantola and throughout the Emilia Romagna region , is proposed to the market as a leading company in the welding,
A distribution network of specialist welding retailers allows Welding Service to guarantee a regular presence on the territory, whose strengths are.
“Quality Welding is an aptly named company. Having worked with them since 1996 on a variety of projects, from race car suspension systems to steel storage racks, I’ve always been impressed with their attention to detail. Whether the project is a custom stainless steel exhaust system for a vintage Shelby Mustang, prototype suspension components for a new experimental design, or a double arm suspension headed to the 24 Hours of Daytona and the 12 Hours of Sebring, the quality, craftsmanship and customer satisfaction is always the same.”JOHN SMITH
“Quality Welding has done several jobs for us over a number of years. Their workmanship is excellent, as is their ability to stick to any necessary schedule. We are very pleased with their work as are all the owners of the projects. Sam Walters is a pleasure to do business with.”Richard James
“The name of the company says it all. Their workmanship and craftsmanship are impeccable. The work Sam has done for me over the years has always been top shelf. I know that if I call him with an urgent request, his response is immediate. I would recommend Quality Welding to anyone needing welding and fabrication services.”Philips