068_ORNL
... materials called “ultrasonic welding” (UW). UW is a solid-state joining process, where highfrequency ultrasonic vibrations are locally applied to workpieces by a vibrating tool “sonotrode,” held under pressure. Joining is made by frictional heat generated at the interface between the parts or surfac ...
... materials called “ultrasonic welding” (UW). UW is a solid-state joining process, where highfrequency ultrasonic vibrations are locally applied to workpieces by a vibrating tool “sonotrode,” held under pressure. Joining is made by frictional heat generated at the interface between the parts or surfac ...
Health and Safety Alert
... Recently an operative suffered severe burns to his upper body and respiratory tract whilst in close proximity to a refuelling operation at a light rail track project in Germany. Unfortunately, he passed away six weeks after the incident. A significant contributing cause of this event appears to be a ...
... Recently an operative suffered severe burns to his upper body and respiratory tract whilst in close proximity to a refuelling operation at a light rail track project in Germany. Unfortunately, he passed away six weeks after the incident. A significant contributing cause of this event appears to be a ...
Oxygen - Matheson
... Oxygen is generally liquefied so that it can be more effectively transported and stored in large volumes. However, most applications use oxygen after it is vaporized to the gaseous form. The primary uses of oxygen relate to its strong oxidizing and lifesustaining properties. Oxygen is commonly relie ...
... Oxygen is generally liquefied so that it can be more effectively transported and stored in large volumes. However, most applications use oxygen after it is vaporized to the gaseous form. The primary uses of oxygen relate to its strong oxidizing and lifesustaining properties. Oxygen is commonly relie ...
Inweld Nibral, Aluminum Bronze 46
... metal is used for MIG and TIG welding of cast and wrought nickel-aluminum-bronze parts where there is a requirement for high resistance to corrosion, erosion and cavitation in salt or brackish water. The most popular application of Inweld Nibral is for repair and maintenance of ship propellers. It i ...
... metal is used for MIG and TIG welding of cast and wrought nickel-aluminum-bronze parts where there is a requirement for high resistance to corrosion, erosion and cavitation in salt or brackish water. The most popular application of Inweld Nibral is for repair and maintenance of ship propellers. It i ...
Welding Accessories
... alloys, and helps eliminate tungsten spitting and arc rectification. NEW! Dual digital meters with alpha-numeric displays allow for quick and easy viewing and preset values for voltage, amperage and other key variables. Allows for greater accuracy and repeatability in the welding procedure. NEW! Run ...
... alloys, and helps eliminate tungsten spitting and arc rectification. NEW! Dual digital meters with alpha-numeric displays allow for quick and easy viewing and preset values for voltage, amperage and other key variables. Allows for greater accuracy and repeatability in the welding procedure. NEW! Run ...
9F Reactivity - Parrs Wood High School
... The test for oxygen is that it relights a glowing splint. An input of energy from a flame or spark is needed to start the combustion reaction by breaking some bonds in the reactants. Explosive mixtures contain an oxidising agent to provide extra oxygen for the reaction. ...
... The test for oxygen is that it relights a glowing splint. An input of energy from a flame or spark is needed to start the combustion reaction by breaking some bonds in the reactants. Explosive mixtures contain an oxidising agent to provide extra oxygen for the reaction. ...
385 brass - Interlloy
... Has good corrosion resistance to weathering, with a fair resistance to many waters. It should not be used in contact with ammonia, or ammonia compounds, as it may suffer stress corrosion cracking. Plating Provides good surface finish through either polishing, and/or electroplating. ...
... Has good corrosion resistance to weathering, with a fair resistance to many waters. It should not be used in contact with ammonia, or ammonia compounds, as it may suffer stress corrosion cracking. Plating Provides good surface finish through either polishing, and/or electroplating. ...
Oxy-fuel welding and cutting
Oxy-fuel welding (commonly called oxyacetylene welding, oxy welding, or gas welding in the U.S.) and oxy-fuel cutting are processes that use fuel gases and oxygen to weld and cut metals, respectively. French engineers Edmond Fouché and Charles Picard became the first to develop oxygen-acetylene welding in 1903. Pure oxygen, instead of air, is used to increase the flame temperature to allow localized melting of the workpiece material (e.g. steel) in a room environment. A common propane/air flame burns at about 2,250 K (1,980 °C; 3,590 °F), a propane/oxygen flame burns at about 2,526 K (2,253 °C; 4,087 °F), and an acetylene/oxygen flame burns at about 3,773 K (3,500 °C; 6,332 °F).Oxy-fuel is one of the oldest welding processes, besides forge welding. Still used in industry, in recent decades it has been less widely utilized in industrial applications as other specifically devised technologies have been adopted. It is still widely used for welding pipes and tubes, as well as repair work. It is also frequently well-suited, and favored, for fabricating some types of metal-based artwork. As well, oxy-fuel has an advantage over electric welding and cutting processes in situations where accessing electricity (e.g., via an extension cord or portable generator) would present difficulties; it is more self-contained, and, hence, often more portable.In oxy-fuel welding, a welding torch is used to weld metals. Welding metal results when two pieces are heated to a temperature that produces a shared pool of molten metal. The molten pool is generally supplied with additional metal called filler. Filler material depends upon the metals to be welded.In oxy-fuel cutting, a torch is used to heat metal to its kindling temperature. A stream of oxygen is then trained on the metal, burning it into a metal oxide that flows out of the kerf as slag.Torches that do not mix fuel with oxygen (combining, instead, atmospheric air) are not considered oxy-fuel torches and can typically be identified by a single tank (Oxy-fuel cutting requires two isolated supplies, fuel and oxygen). Most metals cannot be melted with a single-tank torch. As such, single-tank torches are typically used only for soldering and brazing, rather than welding.