Do you really know the laser tube of CO2 laser marking machine?
For CO2 laser marking machine, the quality and performance of laser tube directly affect the efficiency of CO2 laser marking machine, which is also one of the most important parts of CO2 laser marking machine.
The general CO2 laser marking machine is usually made of hard glass, and generally adopts layer sleeve type structure. The inner layer is the discharge tube, the second layer is the water cooling casing, and the outer layer is the storage pipe. The diameter of the discharge tube of CO2 laser is thicker than that of He-Ne laser tube. Generally speaking, the size of the discharge tube has no effect on the output power, mainly considering the diffraction effect caused by the size of the spot, which should be determined according to the length of the tube. The length of the pipe is thicker and the tube is shorter and thinner. The length of the discharge tube is directly proportional to the output power. Within a certain length of length, the output power per meter discharge tube length increases with the total length. The purpose of adding cold water jacket is to cool the working gas and stabilize the output power.
1. Hard glass: This part consists of discharge tube, water-cooled sleeve, gas storage sleeve and return pipe made of GG17 material. Sealed off CO2 laser is usually made of three layers of bushing. The inner part is the discharge tube, the middle part is the water purifying sleeve, the outer part is the gas storage sleeve, and the return pipe is used to connect the discharge tube and the gas storage pipe.
2. Resonant cavity: this component consists of a full mirror and an output reflector. The reflectivity of the mirror is over 98% near 10.6um. The output mirror of the resonator is usually made of the infrared material Ge, which can transmit 10.6um radiation.
3. Electrode: CO2 laser generally uses a cold cathode, the shape of cylindrical, the selection of cathode material has a great impact on the life of the laser, the basic requirements of the cathode material is: low sputtering rate, low gas absorption.
The discharge pipe is connected with the gas storage pipe at both ends, that is, a small hole at one end of the gas storage pipe is connected with the discharge pipe, and a spiral return pipe is connected with the discharge pipe at the other end, so that the gas circulates in the discharge pipe and the gas in the gas storage pipe is exchanged at any time. It is widely used in acrylic, plastic products and other non-metallic marking, engraving; and developed to the ability of low carbon steel plating marking. CO2 lasers are also used in automated systems for flexible circuit boards and diaphragm polyimide and polyester sheets of electronic instruments.
The general CO2 laser marking machine is usually made of hard glass, and generally adopts layer sleeve type structure. The inner layer is the discharge tube, the second layer is the water cooling casing, and the outer layer is the storage pipe. The diameter of the discharge tube of CO2 laser is thicker than that of He-Ne laser tube. Generally speaking, the size of the discharge tube has no effect on the output power, mainly considering the diffraction effect caused by the size of the spot, which should be determined according to the length of the tube. The length of the pipe is thicker and the tube is shorter and thinner. The length of the discharge tube is directly proportional to the output power. Within a certain length of length, the output power per meter discharge tube length increases with the total length. The purpose of adding cold water jacket is to cool the working gas and stabilize the output power.
2. Resonant cavity: this component consists of a full mirror and an output reflector. The reflectivity of the mirror is over 98% near 10.6um. The output mirror of the resonator is usually made of the infrared material Ge, which can transmit 10.6um radiation.
3. Electrode: CO2 laser generally uses a cold cathode, the shape of cylindrical, the selection of cathode material has a great impact on the life of the laser, the basic requirements of the cathode material is: low sputtering rate, low gas absorption.
The discharge pipe is connected with the gas storage pipe at both ends, that is, a small hole at one end of the gas storage pipe is connected with the discharge pipe, and a spiral return pipe is connected with the discharge pipe at the other end, so that the gas circulates in the discharge pipe and the gas in the gas storage pipe is exchanged at any time. It is widely used in acrylic, plastic products and other non-metallic marking, engraving; and developed to the ability of low carbon steel plating marking. CO2 lasers are also used in automated systems for flexible circuit boards and diaphragm polyimide and polyester sheets of electronic instruments.
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