Whois & Analysis for ykweldingmachine.com

tungsten arc welding.

Gas tungsten arc welding (GTAW), also known as tungsten inert gas (TIG) welding, is an arc welding process that uses a non-consumable tungsten electrode to produce the weld.

The weld area and electrode are protected from oxidation or other atmospheric contamination by an inert shielding gas (argon or helium).

A filler metal is normally used, though some welds, known as autogenous welds, or fusion welds do not require it.

When helium is used, this is known as heliarc welding.

A constant-current welding power supply produces electrical energy, which is conducted across the arc through a column of highly ionized gas and metal vapors known as a plasma.

GTAW is most commonly used to weld thin sections of stainless steel and non-ferrous metals such as aluminum, magnesium, and copper alloys.

The process grants the operator greater control over the weld than competing processes such as shielded metal arc welding and gas metal arc welding, allowing for stronger, higher quality welds.

However, GTAW is comparatively more complex and difficult to master, and furthermore, it is significantly slower than most other welding techniques.

A related process, plasma arc welding, uses a slightly different welding torch to create a more focused welding arc and as a result is often automated.

An inverter on a free-standing solar plant.

Overview of solar-plant inverters.

A power inverter, inverter or invertor is a power electronic device or circuitry that changes direct current (DC) to alternating current (AC).

The resulting AC frequency obtained depends on the particular device employed.

Inverters do the opposite of rectifiers which were originally large electromechanical devices converting AC to DC.

A welding power supply is a device that provides or modulates an electric current to perform arc welding.

There are multiple arc welding processes in common use ranging from relatively simple Shielded Metal Arc Welding (SMAW) to more complicated welding processes using inert shielding gas like Gas metal arc welding (GMAW) or Gas tungsten arc welding (GTAW).

Welding power supplies primarily serve as devices that allow a welder to exercise control over whether current is alternating current (AC) or direct current (DC), as well as the amperage and voltage.

Power supplies for welding processes that use shielding gas also offer connections for gas and methods to control gas flow.

The operator can set these factors to within the parameters as needed by the metal type, thickness, and technique to be used.

The majority of welding power supplies do not generate power, instead functioning as controllable transformers that allow the operator to adjust electrical properties as needed.

However, in some welding applications, notably SMAW, used in areas isolated from power grids, welding power supplies are used that combine the functions of electrical generation and current modulation into a single mobile unit mounted on a vehicle or towed trailer.

China, officially the People's Republic of China (PRC), is a country in East Asia.

It is the world's most populous country, with a population of more than 1.4 billion people.

China spans five geographical time zones and borders 14 countries, the second most of any country in the world after Russia.

Covering an area of approximately, it is the world's third or fourth largest country.

The country consists of 23 provinces, five autonomous regions, four municipalities, and two Special Administrative Regions (Hong Kong and Macau).

The national capital is Beijing, and the most populous city and financial center is Shanghai.

The ampere (symbol: A), often shortened to amp, is the SI base unit of electric current.

One ampere is equal to electrons worth of charge moving past a point in a second.

It is named after French mathematician and physicist André-Marie Ampère (1775–1836), considered the father of electromagnetism along with Danish physicist Hans Christian Ørsted.