Plasma Cutter Nozzle 0558006018 1.8mm For Esab PT-36 Plasma Cutting accessories

Shanghai HengSheng  Welding & Cutting Technology is a professional manufacturer plasma consumables electrode, nozzle, shield, swirl ring, inner cap, retaining cap, water tube, torch body and so on. We have tens years experience to export many countries, and our products is very competitive in the world.

Each of our products has been tested with a rigorous precision instrument, A large number of piercings tests and service life tests, And made batch trial in our customers. If all results are good, then we will producing them. In recent years, we have been sold in lots of countries and regions in Europe and Asia and gained good reputation widely with excellent quality . In order to meet customers' requirements and improve product quality, our company has already realized mechanical processing numerical control automatization production, and been committed to manufacturing products with best quality.

Our company adopts modern management mode and devotes itself to new high performance design and production of welding & cutting equipments, with continuous technique advantages innovation .All our staff are striving to realize the aim of "Create Chinese Brand ,Build First-Class Enterprise ",with the spirit of "Being honest and pragmatic ,making pioneering efforts and seeking perfection with persistency."

Company commitment: thinking what customers think, worrying what customers worry, in time delivery and high tracking service.

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Plasma cutting machine matters needing attention

The selection of cutting parameters of CNC plasma cutting machine is very important for cutting quality, cutting speed and efficiency. The correct use of CNC plasma machine for high quality fast cutting, cutting process parameters must be deeply understood and mastered.

First, cutting current: it is the most important cutting process parameters, directly determines the cutting thickness and speed, that is, cutting ability. Effects: 1, cutting current increases, an increase in the energy of the arc, cutting ability, the cutting speed is increased; 2, cutting current increases, increasing the diameter of the arc arc variable rough makes incision width; 3, cutting current ambassador to the nozzle increases the heat load, the nozzle premature damage, cutting quality of the natural decline, can't even normal cut. So the cutting current and the corresponding nozzle should be chosen according to the thickness of the material before cutting.

1, argon at high temperature and almost no reaction to any metal, argon plasma arc is very stable. The nozzle and the electrode used have high service life. But the argon plasma arc voltage is low, the enthalpy value is not high, the cutting ability is limited, and the cutting thickness will be reduced by about 25% compared with the air. In addition, the surface tension of molten metal is larger than that in the environment of nitrogen gas, which is about 30% higher than that in nitrogen gas environment. Even if the use of argon and other gas mixture will have a tendency to stick. Therefore, pure argon plasma cutting has been rarely used alone.

2, hydrogen is often as auxiliary gas and other gas mixing action, such as the famous gas H35 (the volume fraction of hydrogen is 35%, the rest of the argon) is one of the strongest gas plasma arc cutting, the main enrichment in hydrogen. Because the hydrogen can significantly improve the arc voltage, the hydrogen plasma jet has a high enthalpy value, when mixed with argon, the cutting ability of the plasma jet is greatly improved. Generally more than 70mm thickness of metal materials, commonly used argon + hydrogen as a cutting gas. If the water jet is used to further compress the argon + hydrogen plasma arc, the higher cutting efficiency can be obtained.

3, nitrogen is used as a working gas, under the conditions of higher voltage and nitrogen plasma arc has better stability and higher than the argon gas jet power, even if is cutting liquid metal viscosity materials such as stainless steel and nickel base alloy, incision of inferior hanging slag quantity are few. Nitrogen can be used alone, also can use with other gas mixture, such as automatic cutting often use air or nitrogen as the working gas, the gas has become the standard high speed cutting carbon steel gas. Sometimes nitrogen is also used as an arc gas in the plasma arc cutting.

4, oxygen can improve the speed of cutting low carbon steel materials. Use oxygen cutting, cutting mode and flame cutting is very similar, the plasma arc of high temperature and high energy of the cutting speed faster, but must with the use of high temperature oxidation resistance of electrode, and the electrode for arc anti impact protection, to prolong the electrode life.

5, an air containing volume fraction of about 78% nitrogen, so use air cutting formed by hanging slag and nitrogen gas cutting is very similar; in the air also contains a volume fraction of about 21% oxygen, because the existence of oxygen, air cutting speed of low carbon steel material is also very high; at the same time the air is the most economical working gas. However, when the air is used to cut, there are problems such as hanging slag and cutting oxidation, increasing nitrogen, and the lower life of electrode and nozzle can also affect the working efficiency and cutting cost.