The plastic laser of small fluid chip and flow path of road of fluid of complicated energy of life solders

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As the ceaseless progress of workmanship level, more and more newest technologies are gone to by application plastic solder domain, plastic laser beam welding receives a technology is among them one of. Pass old technology to improve, plastic laser beam welding receives craft to be being used by more and more industries, for example, industry of analysis of electron of car, consumption, new energy resources, gas, medical apparatus and instruments is waited a moment. The article basically introduces plastic laser beam welding to receive craft to be in medical apparatus and instruments, especially the use on appliance of medical treatment fluid. The standard of living of craft setting modern rises ceaselessly, the demand that ensures to medical treatment is higher and higher also. Company of each big medical apparatus and instruments is bigger and bigger also to the investment of research and development of medical apparatus and instruments, the manufacturing technology of medical apparatus and instruments rises ceaselessly, enormous capital support makes a lot of newest craft application arrive in the production of medical apparatus and instruments. Plastic laser beam welding receives technology is to go up century a 90 time are arisen kind plastic solder new technology, this craft is one kind does not have contact solder method, solder any vibration, noise and dust won't produce in the process, the nicety that is a kind of exceeding cleanness solders method, suit medical treatment very much the nicety of plastic products solders. The process is received in plastic laser beam welding in, the laser of specific wave band is shot from inside laser head, the superstratum of the penetrable workpiece that wait for solder is plastic, be absorbed by the surface with work plastic lower levels, lower level is plastic after the surface is fused, quantity of heat conducts next surfaces with plastic superstratum, the place also begins to fuse, below the action of clamping apparatus pressure, melted place is soldered together, refrigeration hind forms hard welding line. Appliance of medical treatment fluid solders component of instrument of sample gas analysis (left) / chip of small fluid of chip of small fluid of component of aeriform analysis instrument is react sample preparation, biochemistry and detect as a result etc measure is compositive to together very small plastic base on chip, such detecting uses reagent amount will be OK turning microlitre into class is even offer rises or the skin upgrades. Measure besides use reagent small, small fluid chip still has response rate fast, can abandon wait for an advantage. Small fluid chip is home in last few years energetically the project of research and development, small fluid chip is the diagnostic platform of a miniature actually, can undertake the disease is diagnosed quickly, save material resources of much labor power. In the meantime, diagnostic platform of small fluid chip is carried convenient, the disease that suits underdeveloped or remote region is diagnosed quickly. Small fluid chip is used very handy, but the job that chip of manufacturing small fluid is a not simple truly. Small fluid chip reachs Bo by cover piece composition. Cover is plastic film or ply those who be a few millimeter is plastic piece; Bo piece go up to adopt sculpture technology or note model craft to form a lot of complex narrow flow path, the width of flow path comes in 100 micron commonly 1 millimeter left and right sides. Should undertake to these narrow flow path sealed, normally craft basically has ultrasonic, hot pressing and glue to stick receive technology, these a few craft have fatal flaw. Ultrasonic craft can produce older excessive stuff and dust, destroy reach contaminative flow path; Area of hot influence of hot pressing craft is too large, contain changeful form and excessive material, destroy flow path structure, and efficiency of production of hot pressing craft is very low; Glue is stuck receive can make glue enters flow path, pollute flow path, at the same time production needs to increase bit of glue and sizy solidify craft, raise cost. To solve above problem, the most reliable craft is plastic laser beam welding receives technology. The welder of film of attack by surprise that with Yu Wei the laser beam welding of fluid chip receives technology basically is company of Swiss Lai red art. Film of attack by surprise solders craft is used linear stimulate beam of light, use film of an attack by surprise to cover flow path part at the same time, stimulate beam of light to had swept chip, need soldering place to be gotten on by solder, and because flow path has laser of keep out of film of attack by surprise to won't suffer any effects. Model of attack by surprise solders solder precision (solder line brim comes flow path) can achieve 0.

1mm left and right sides, this one precision can satisfy great majority clinical the requirement of use small fluid chip. District of complicated energy of life or fluid road are plastic the component solders besides what be used at small fluid chip, plastic laser beam welding receives craft to still can be used solder medical treatment equipment or the plastic part that in analysing an instrument, gas contains district of complicated energy of life or fluid means. These components form fluctuation through noting model two workpiece, workpiece surface is densely covered and complex appearance gas or liquid flow path, general 2-3mm controls the width of flow path. Through soldering sealed hind, flow path asks 100% sealed, the pressure that can achieve 1-5 Bar bears ability. In the meantime, the requirement after soldering cannot produce excessive material, flow path is not polluted. These requirements are mixed of small fluid chip solder the requirement is similar. But this does not mean plastic laser beam welding to receive what can complete these work easily to solder. In preamble we are mentioned, plastic laser beam welding is received must use clamping apparatus to will wait for soldering fluctuation workpiece clamp, the purpose of use clamping apparatus is the solder side that makes need soldering fluctuation work can close together joint is together. And the workpiece that accumulates to bedding face, because note model hard to avoid is out of shape or the surface is rough whole, use clamping apparatus very hard to make sure solder side is tight joint. To solve this one problem, the ball of company of Swiss Lai red (GLOBO Welding) or platen is plastic laser beam welding receives technology (Roller Welding) offerred very good solution. The laser camera lens of these two craft is special camera lens, camera lens front has vitreous ball or roll, when soldering, vitreous ball or platen are in on workpiece surface scroll. Vitreous ball or platen removed focusing laser to reach at the same time offer solder the action of pressure, what offer as a result of vitreous ball or platen is local pressure, assure to soldering so the solder side of instantly fluctuation workpiece can be tight joint, can achieve consequently solder very well the effect. Welder of Lai red ball art (GLOBO Welding) those who sum up plastic laser beam welding to receive technology is a lot of more phyletic, it also is not confined to above paragraphs in the application of industry of medical apparatus and instruments enumerated applying. Make horizontal progress as Chinese medical apparatus and instruments, the plastic laser beam welding that serves as one of accurate workmanship receives craft to be sure to get better progress and promotion. CNC Milling