August 12, 2017 18:07
Gas welding machines are the first devices of its kind.These systems have appeared in XIXveke and quickly spread to different areas of the construction industry.The operating principle of such machines is that, because the reaction occurs by which the compounds of sodium and water carbide, acetylene gas is released, at which the combustion temperature can reach 3100 degrees Celsius.Upon reaching this temperature, the metal melts and comes molecular permanent connection of metal parts.Also for this type of welding practice of using a ready acetylene in cylinders.
So, consider the more basic types of welding machines based on the combustion of acetylene.
The first is to indicate that they are stationary and portable.Stationary units used in large shops where ever required a large amount of welding.For example, tube or car-building factory.Portable acetylene generators also used in smaller installation works.Examples are the creation of a heating system or a variety of metal structures.
Welding machines provide high reliability and durability of fastening.Minus of the system: very explosive acetylene generators, so their use requires a large expenditure of energy, as well as qualified personnel.When using a gas welding neglect can happen fairly large accident.
This type of welding produces metal melting using an electric arc.To get it, you can use different settings.For example, wheeled or tracked unit, or a portable device.In this section, we are on a mobile device on a wheeled or tracked.
These welding systems are used for bonding metal to hard to reach places, such as on heating mains pipelines and more volume.Units are available with the strengthening of frames and can be used in a stationary mode, and at the exits.The design includes a generator device for gasoline or diesel fuel.Gasoline device may have a capacity of 5-15 kW.Diesel same - from 5 to 25 kW with cooling air and to water of 500 kW.
price for such a welding system starts with 300 thousand rubles.Foreign counterparts can reach a price of more than a million numbers.
Among apparatuses of this type can be identified and ADD4004 Italian MOSA.
In today's world of welding equipment were aggregates to be used which is not necessarily the presence of generators that provide high voltage and rectifiers.These devices operate from a network that provides great usability.This type of welding machines called an inverter.
Compact device for welding, working on the network, gradually replacing the large and powerful machines because of the convenience of its use.But, despite the fact that they are small-sized, their device is difficult.It is the complexity of the system allows you to keep the compact dimensions with tangible power.
In the process, an electric current of 220 volts is converted into a DC voltage, and then to AC with a frequency of 200 kHz.Also, an additional pulse is generated when the touch electrode to the work surface, which facilitates maintenance of the arc.For safety reasons in case of a short-circuit arc voltage is temporarily disabled.
When selecting inverter svarochnika for your needs you should pay attention to the mode you plan to observe.When conducting welding operations is meant for eight hours or more, you should buy a professional device.But when the planned short-term use of welding, it is quite suitable home inverter, which is enough for a voltage of 160 V.
among firms producing inverters can be identified: Fubag, Helvi, Cedar.
most modern and efficient option is welding plasma welding.It is used for welding and cutting even thick metal layer.The design of this unit can be summarized as follows:
is to provide some high-quality plasma welding machines, popular in today's market: