CNC plasma cutting machine analysis of various aspects

CNC plasma cutting machine analysis of various aspects of
CNC plasma cutting cutting machine process has cut fast, slotted small features, but many users tend to enterprises in the actual operation of a variety of problems occur

, Resulting in actual cutting speed is limited, slotted too large, cut surface is not the whole phenomenon, excluding CNC plasma cutting machine itself mechanical failures and other factors, the user enterprises in the operation

Is not set correctly for CNC plasma cutting machine related parameters will also affect the actual cutting results, the following will be the Blue Technology Co., Ltd. Wuhan actual shadow Experience

Rang CNC plasma cutting hydraulic pipe crimping machine effect of various factors, and users exchange about business:

A no-load voltage and the arc column voltage

Plasma cutting power, must have a sufficiently high no-load voltage, in order to easy the plasma arc ignition and stable combustion. No-load voltage is typically 120-600V, while

Arc column voltage is typically no-load voltage of the half. Arc column voltage increase, can significantly increase the power of the plasma arc, which can improve the cutting speed and cutting of greater thickness

Sheet metal. Arc column voltage tends to increase by adjusting the gas flow and shrinkage does not reach the inner electrode, but the arc column voltage can not exceed 65% of the no-load voltage, otherwise it would be, etc.

Plasma arc instability.

(2) Cutting current

The same can be improved to increase cutting current plasma arc power, but it is limited by the maximum allowable current, otherwise it would be thicker plasma arc column, kerf width increases

, Electrode life decline.

3 gas flow

Increased gas flow both to improve the arc column voltage, but also enhance the arc column compression leaving the role of the plasma arc energy is more concentrated, jet stronger, thus improving

Cutting speed and quality. However, excessive gas flow, but will make the arc column shorter heat loss increases, so that the cutting diminished capacity until the cutting process can not be normal

.

4 pipette shrinkage

Within the so-called shrinkage refers to the tip end of the electrode distance, a suitable distance so that the arc within the torch tip to get good compression, access to energy concentration, high temperature

The effective plasma arc cutting. Distance is too large or too small, will make the electrode severe burning, cutting tip burn and cutting ability. Within shrinkage generally take 8-11mm.

5 cutting nozzle height

Cutting nozzle tip height is the end to be cut from the workpiece surface. The distance is generally 4 ~ 10mm. It is the same with the electrode within the shrinkage, the distance to the right in order to give full

Waving plasma arc cutting efficiency, otherwise it would cutting efficiency and cutting quality or the torch burn.

6. Cutting speed

All of the above factors directly affect the compression effect of the plasma arc, that is, the temperature affect the plasma arc and the energy density, and high-temperature plasma arc, high energy resolution

Set the cutting speed, so the above factors were associated with the cutting speed. Ensure the cutting quality of the premise, should be possible to improve the cutting speed. This is not only mention

High productivity, and can reduce the amount of deformation of parts cut kerf area and heat affected zones. If the cutting speed is inappropriate, the opposite effect, but will also increase the sticky residue,