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Powder-actuated tools are often used because of their speed of operation, compared to other processes such as drilling and then installing a threaded fastener. They can more easily be used in narrow or awkward locations, such as installing steel suspension clips into an overhead concrete ceiling.
They act transferring the forces via mechanical interlock. This fastening technology is used in steel-to-steel connection, for instance to connect cold-formed profiles. A screw is inserted into the base material via a gas actuated gas gun. The driving energy is usually provided by firing a combustible propellant in powder form. [14]
In 1952 Hilti launched its first construction-related product, a manual tool to drive threaded studs into steel. In 1953 the company introduced its first powder-actuated high-velocity fastener that allowed setting nails into concrete, called Perfix. [10]
Siddons was sent to the United States on a research tour in 1949, where he was introduced to the newly created Ramset gun – "a powder-actuated tool gun that greatly sped up the process of fastening slabs of concrete or steel". [2]
Fasteners that rely on some mechanical principle (i.e. not adhesives) and are semi-permanent (i.e. unlike clamps). Subcategories This category has the following 2 subcategories, out of 2 total.
Fasteners commonly used with piping are a stud bolt [25] with nuts (usually fully threaded, with two heavy, hexagonal nuts); a machine bolt and nut; or a powder-actuated tool (PAT) fastener (usually a nail or threaded stud, driven into concrete or masonry).
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