The legal requirements for regular testing of all electrical equipment in work environments and public places have made testing a major growth area for electricians over recent years. Many staff members without electrical training, such as maintenance staff and caretakers, are also being nominated by their employers to carry out electrical safety testing.
Shocks from electrical [...]
New York City and the surrounding cities are of course among the oldest cities in the United States. Accordingly, they have some of the oldest electrical grids in the USA as well.
One result of power grids being of early origins is the widespread use of 208 volt electricity instead of 480 volt electricity. As one [...]
In the United Kingdom, most companies have their electrical appliances regularly checked for safety. However, it is almost universally abbreviated to “PAT testing” it is not a legal requirement at the moment, although this may change in the future, most people agree it is better to be safe than sorry.
It is possible to test all [...]
Premier businesses are experts in selling equipment financing and leasing into their process, and have dramatically increased their closing percentage over other competitors.
From small businesses selling machines to companies like Dell, CDW, Toshiba, and Xerox, each has a leasing program embedded in their sales process. These companies are highly successful at bundling equipment and service [...]
The earliest forms of powder coating have been around since the early 1950s and were born from America’s insatiable appetite for motor vehicles. The continued streamlining of the sub-contract supplier network led to manufacturers seeking the “holy grail” of a one coat finishing system. This, coupled with early signs from environmental pressure groups, led to [...]
All steels contain some nitrogen which is effective in improving the mechanical and corrosion properties of steels if it remains in solid solution or precipitates as very fine and coherent nitrides. When nitrogen is added to austenitic steels it can simultaneously improve fatigue life, strength, work hardening rate, wear and localized corrosion resistance.
High nitrogen martensitic [...]
The increasing demand in recent years for high-quality steel products has led to the continuous improvement of steelmaking practices. There is a special interest in the control of non-metallic inclusions due to their harmful effect on the subsequent stages and their great influence on the properties of the final product. Through the control of the [...]
Non-metallic inclusions, which are undesirable components of all steels, play an important role with respect to their effect on the steel properties. Controlling inclusions in steel is closely connected with the concept of “clean steel”. The improvement in steel properties by control of non-metallic inclusions plays an important part in defending the applications of steel [...]
Steel cleanliness is an important factor of steel quality and the demand for cleaner steels increases every year. The so-called clean steel generally is the steel in which the content of impurity elements, such as phosphorus, sulphur, total oxygen, nitrogen, hydrogen (including carbon sometimes) and inclusions are very low. The improvement of steel cleanliness has [...]
Steel is made by the Bessemer, Siemens Open Hearth, basic oxygen furnace, electric arc, electric high-frequency and crucible processes.
Crucible and high-frequency methods
The Huntsman crucible process has been superseded by the high frequency induction furnace in which the heat is generated in the metal itself by eddy currents induced by a magnetic field set up by [...]
