Plastic laser beam welding receives a method to reach its to apply mediumly in medical apparatus and instruments

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Apply extensively in domain of medical apparatus and instruments in plastic material today, new-style plastic production and treatment craft emerge in endlessly, laser beam welding is received serve as a kind among them, get the wide attention of the industry. The article introduces the principle that plastic laser beam welding accepts, craft and the application in industry of medical apparatus and instruments. Plastic solder the principle is in thermoplastic solder plasticly in the process, two wait for solder plastic spare parts is placed together with clamp clamping apparatus, a among them plastic can make laser penetrable, and another plastic an energy that can draw laser. Those who stimulate beam of light to pass superstratum is pervious to light material arrives solder planar, be absorbed by lower level material next. Laser energy is absorbed to make temperature of lower level material elevatory, fused superstratum and lower are plastic, caky finally into firm welding line. Solder principle graph is plastic the good point that laser beam welding receives depends on, it is contact of a kind of blame solder method, the energy of laser is action only at very small weld zone region, the thermal stress that reduced workpiece greatly reachs the vibration destruction to workpiece. The method that plastic laser beam welding accepts basically has: Outline solders, synchronism solders, accurate synchronism solders, radiative shape solders reach Globol to solder etc. Outline solders just as its name implies, outline solders even if make laser moves along the solder wiring of workpiece, the plastic layer that solders need fuses and felt is together; Some moment, also can secure the position of laser, move or rotate workpiece will achieve solder purpose. Synchronism solders synchronism solders above all according to the laser head with custom-built and corresponding figure of weld zone region, ask appearance of weld zone region is symmetrical commonly, for instance circle. Synchronism solders stimulate beam of light to originate many diode stimulate beam of light, they at the same time action solders at fusing weld zone region is achieved on the contour line of weld zone region the effect. The blemish that synchronism solders must want undertake according to the appearance of weld zone region of workpiece in the camera lens at it custom-built. Model of attack by surprise solders model of attack by surprise solders need makes a pattern plate that can be reflexed or absorbs laser. Pattern plate uses tack welding to receive area, laser fuses through pattern plate weld zone region is achieved solder the effect. The advantage that model of attack by surprise solders depends on its flexibility, pattern plate can undertake changing according to the appearance of weld zone region, in the meantime, this kind solders the method also applies to tall nicety to solder, its precision can reach micron level. Globo solders Swiss Lai red (Leister) the welder of company patent art. Globo solders undertake soldering along the contour line of the product. Stimulate type of air cushion of by of beam of light, the vitreous ball that can roll without attrition random nods the focusing of shape form to receive an interface at solder, this glass ball undertakes focusing not just and clamping apparatus of appropriative also and mechanical clamp. Be in when pushball apparently when scroll, offerred for joint face continuously pressure. This ensured heat in laser material while have pressure clamp. This glass ball replaced rigid clamping apparatus, enlarged laser beam welding to receive at the same time in successive and three-dimensional the applied limits in soldering. Plastic the application that solders to go up in medical apparatus and instruments is in domain of medical apparatus and instruments, plastic laser solders to basically apply at all sorts of equipment of electron of injection system, medical treatment, man-made transplanting and the product that create an opening is waited a moment. An interesting application is to use laser beam welding to receive Phonak cerumen to defend implement, whole cerumen defends implement size has a few millimeter only, on the gasket that we need to receive a diaphragmatic solder volume of an about 3 millimeter. Diaphragmatic it is transparent to laser radiate, and washerbed down the livestock is used thermoplastic material is made, can absorb laser radiation. Want those who realize so little work to solder, we used the model of attack by surprise that applies to tall nicety to solder to solder method. Plastic laser beam welding receives craft to still be in a few other high end have wide application on medical treatment product, for instance, man-made fistula nurses product and pinpoint protection cap are waited a moment. Nurse in man-made fistula in the product, what we use is Globo welder art. And in pinpoint protection cap in soldering, what we use is synchronous welder art. Plastic laser beam welding receives biology chip and small flow path to there also is wide application in instrument of analysis of biology medical treatment. Instrument of analysis of biology medical treatment asks normally asepsis, cannot have any chemical material ginseng is miscellaneous etc. And traditional adoption is sizy adhesion means may take chemical matter analytic instrument, affect precision thereby. Friction welding is received wait for other way dust of generation of the meeting in machining a process or extravasation, this also can produce pollution to the instrument. And laser solders to be not contact to solder as a kind method, particularly applicable the production of this kind of product. Plastic laser beam welding receives the heat in machining a process incidence is small, because this also applies to those who heat up sensitive data to solder, of the biology chip that for instance the surface has protein coat solder. The example with best instrument of analysis of biology medical treatment is liquid analysis chip, this kind of chip contains system of small flow path, with will collect reach analytic wet goods. Normally flow path has a few centimeters long only, the likelihood has a few micron to arrive hundreds of micron are wide, its aspect ratio is less than 1. Pressure of flow path susceptive has a few handkerchief normally. These small flow path normally by very thin plastic piece form, its ply may differ to 20 micron from a few millimeter. Want to undertake soldering to so accurate product, model of attack by surprise solders is best method. After using model of attack by surprise to solder, should use the diode laser that compares inferior quality to be able to be finished only solder, save a large number of investment thereby. Additional, use model of attack by surprise to solder to also can improve manufacturing efficiency considerably. Plastic laser beam welding receives craft to go up in medical apparatus and instruments use far more than a few kinds of afore-mentioned application, plastic laser beam welding receives craft to be being used by manufacturer of more and more medical apparatus and instruments, its applied foreground will be very bright. CNC Milling CNC Machining