Color Laser Marking Machine

Shenzhen MG Technology Co.,Ltd is one of the leading China color laser marking machine manufacturers and suppliers,Website:http://www.mglasermachine.com, equipped with professional factory we are always able to produce low price color laser marking machine, laser etching machine for metal, fibre laser engraving machine with reliable quality.Laser marking technology has been from the beginning of high speed development to stable development stage, in stainless steel marking field appeared new technology: laser print color on stainless.Principle of Color laser engraving (3 ways): 1.Create a colored oxide;2.With chemical, electro-chemical or under the action of laser, create a thin, transparent colorless oxide film, with interference effect of oxide film, color will be showed on stainless surface;3.A mixed state which simultaneous has colored oxide and oxide fiilm.MOPA laser stainless steel color marking:The advantage of MOPA laser: its pulse width and frequency can be adjusted independently, one of them will not affect the other laser parameters, which is not available in the Q-switch structure laser. MOPA structure of this characteristic, make the stainless steel color marking with an infinite possibility. In the actual operation, the pulse width, frequency, power, speed, filling method, filling spacing, delay parameters, etc., will affect the color effect. The impact of these parameters, will make the diversification of color changing characteristics , is a mutual connection, mutual influence.Pulse width and frequency, is the characteristic of MOPA laser, mutual independence also can be adjusted; these two parameters is also the most important parameters in the stainless steel color engraving, they can mix, can make up a colorful world.Speaking of laser power, we must know well, it is able to influence the output of laser single pulse of the most intuitive control variables. After testing, when laser color engraving on stainless, we found that the frequency is “contest” with pulse width, frequency affects abundantly on color changing. If put the frequency and power together, under certain conditions will occur following such rules: in densely populated spacing, moderate pulse width and high frequency (to fill space <0.005mm; pulse width 45ns-100ns; frequency is greater than or equal to 300kHZ) and power by increasing, manifested in the stainless steel color showing a variation of the rules are: yellow, red, blue, green, until the green gradually become darker. As shown in the following figure (@60ns, 0.001mm bow filling, F=163mm mirror    As can be seen from the picture, with the change of the frequency and power, color change presents a certain regularity. This rule also applies when changing the filling distance.As shown in the following figure (@60ns, 0.005mm bow filling, F=163mm mirrorAt this point, the change in the density of dense packing space, medium pulse width and high frequency is the premise, the change of the filling is small, the color change is caused by frequency and power mainly. In other words, the difference in color, which is mainly influenced by the single pulse energy of the laser itself and its effect on the spot overlap of the steel sheet, the reaction to the color mode of the stainless steel, is showing a regular variation as seen in the picture.ModelMG-F10CMG-F20CLaser Output Power10W20WLaser Wavelength1064nm1064nmBeam Quality M2＜1.4＜1.8Laser Modulated Q Frequency20kHz~500kHz20kHz~500kHzWorking Area110mm×110mm110mm×110mmMarking Depth≤1mm≤2mmMachine Power500W600WMin Line width0.01mm0.01mmRepeat Precision±0.0001mm±0.0001mmElectrical SupplyAC 90-250V/50Hz 5AAC 90-250V/50Hz 10AMarking Speed≤10000/s≤10000/sCooling SystemAir CoolingAir CoolingOptional Parts: Rotary, 2D XY table;Warranty: 1 year for whole machine, 2 years for fiber laser source;Fiber laser source lifetime: 100,000Hours!!!Free-maintenance operation for a long time with using air-cooling method.Color Laser marking samples: