Shanghai Daoqin Plastics Co., Ltd.

摘 need: introduction device as features and production device process features, introduction light welding device principle and features, and other welding process comparison, 指出 传感 device welding methods development direction. key/critical 词: device, light, light welding, 密封焊 一, device according to standards GB7665-87, device is: can 感受规定 by amount according to 一定 规律转换 formed can use 输出信号 device parts plant/unit. device as is testing tool, requirements testing research for material or chemical 信息, its as process requirements stability, can 靠, degree high, therefore for device has below/following several requirements: （1）适应恶 poor ring can force strong/high ——传感 device generally as ring separation 广, from 极寒至酷 hot 区, many in ring lower as, can resistant 飞沙走石, 灰尘, also resistant wet, relatively high resistant salt type 腐蚀, acid property can force, has resistant gas dry can force, can in high temperature, 极寒, strong/high 烈振动, impact and in other conditions lower positive as can force, also resistant can force strong/high, ratio high. （2） price in, large amount production —— requirements device property good, 适宜自动化批 amount production, for processing equipment has relatively high requirements, troubleshooting 人工操 as belt/tape 不一致 property and 失误. （3） stability property and can property high ——传感 device is types high degree testing device, in 军事, aviation, aerospace in application has requirements, product must 经 严格 testing can application. therefore device production is types high new technology specific use and 体现. types device is has relatively high technology add value in technology content and processing process technology is high new. has separation device due to its application ring 境 状况需 metal 封装, generally using/adopting welding 密封, pressure device, force device, 霍尔传感 device, light electrical device, temperature degree device and other, this category of device internal has 敏感元 parts and formed electrical 路, inert property gas or true and outer 界隔绝, has resistant pressure, gas property requirements, has welding strong/high degree requirements and gas rate requirements, for welding quality requirements high, but also welding process in requirements deformation small, can for internal parts and micro electrical has loss bad. currently device welding has electrical retardant 焊, 钨极氩弧焊, and other 离子弧焊, electronics and light 焊. 二, light welding 1, light welding principle ——激 light is 辐射 受激发射 light large 简称, due to its has high degree, high direction property, high mono color property, high versus dry property, 自诞生以, its in industrial processing in application separation 广泛, formed is future manufacturing system processing 手段. use light welding processing is utilizing high strong/high degree light 束, light optical system poly rear, its light 焦点 功 rate density is 104~107W/cm2, processing parts 置于激 light 焦点附近进行 add hot 熔化, phenomenon can generate and generate strong/high low degree main/primary 取决于激 light function material surface time, rate density and value rate. control upper parameters can utilizing light various different welding processing. 2, light welding generally features ——激 light welding is utilizing light as is hot 源 一 types hot processing process, it and electronics and other 离子束 and generally machine processing versus comparison, tool has many advantages: （1）激 light 束 激 light light small, rate density high, can welding high melting point, high strength alloy material; （2）激 light welding is 无接触 processing, has tool loss consumption and tool and other issues. light can amount can 调, speed degree can 调, can multiple welding processing; （3）激 light welding 自动化程 degree high, can use machine control, welding speed degree fast, high, can 方便 进行任何 complex welding; （4）激 light welding hot effect/influence small, material deformation small, rear 续工序处理; （5）激 light can through welding true container inner parts and complex structure internal 位置 工 parts; （6）激 light easy toward, poly 焦, achieve direction 变换; （7）激 light welding and electronics processing versus comparison, need true equipment system, as 方便; （8）激 light welding production efficiency high, processing quality stability can 靠, 经济效益 and 社会效益 good. 3, light welding in device production in process features ——激 light use 封焊传感 device metal outer housing/shell is currently types most processing process methods, main/primary 基于激 light welding has below/following features: （1） high deep wide ratio. deep narrow, light 亮美观; （2） most small hot 输入. due to rate density high, process fast, 输入工 parts hot amount very low, welding speed degree fast, hot deformation small, hot effect/influence small; （3） high property. 焊缝生 formed process in, 熔池不断搅拌, gas easy 出, 导致生 formed gas 孔熔透焊缝. rear high cooling speed degree also easy make 焊缝组织 micro fine 化, strong/high degree, tough property and comprehensive property can high; （4） strong/high solid 焊缝. high temperature hot and for non metal 组份 充 separation absorption generate pure function, reduce content, 改变夹杂 dimensions and its in in distribution, welding process in electrical or filling filament, 熔化区受污染 small, make strong/high degree, tough property less versus 当于甚至 ultra- 母体 metal; （5）精确 control. is poly light very small, can high degree 定位, light easy and control, need more 换焊炬, 喷咀, significantly decrease/reduce machine time, production efficiency high, light property, also can in high speed lower and heavy new 启始. use light 束移动 technology can complex parts; （6） non 接触, large gas ring welding process. is can amount light, parts material 理接触, therefore has force add parts. magnetic and gas for light effect/influence; （7） due to hot low, processing degree high, can decrease/reduce again processing use, another, light welding 运转费 use relatively low, from can reduce parts cost; （8）容 easy achieve 自动化, for light strong/high degree and fine can has control. 三, light welding and has welding methods comparison currently device welding using/adopting methods has: electrical retardant 焊, 氩弧焊, electrical 束焊, and other 离子焊 and other. 1, electrical retardant 焊: it use welding thin metal parts, in electrical 极间夹紧 by parts through large electrical 流熔化 electrical 极接触 surface, through parts electrical retardant hot welding. parts easy deformation, electrical retardant through 接头两边焊 combined, light from mono 边进行, electrical retardant use electrical 极需经常维护以清 remove oxidation material and from parts viscous metal, light welding thin metal 搭接接头时并不接触工 parts, again 者, light also can 进入常规焊 difficult and 区域, welding speed degree fast. 2, 氩弧焊: use non consumption electrical and gas 体, commonly used welding thin parts, welding speed degree relatively slow, hot ratio light large very more, easy generate deformation. 3, and other 离子弧焊: and similar, its 焊炬会 generate pressure shrink electrical 弧, improve/increase temperature and can amount density, it ratio 氩弧焊 speed degree fast, deep large, 但逊于激 light 焊. 4, electronics 束焊: it 靠一束 accelerated high can density electronics 流撞击工 parts, in parts surface very small inner generate large hot, formed “ small 孔”效应, from 而实施 deep welding. electronics main/primary disadvantages is need high true ring anti electronics dispersion 射, equipment complex, parts dimensions and 形状受 to true 空室 限 made, for parts assembly quality requirements 严格, non true electronics 束焊也 can 实施, due to electronics dispersion poly good effect/influence 效果. electronics also has magnetic and X射线 issues, due to electronics belt/tape electrical, magnetic 场偏转 effect/influence, requirements electronics 束焊工 parts front magnetic 处理. X射线 in high pressure lower especially strong/high, for as 人员实施保护. light 焊则不需 true and for parts front magnetic 处理, it can in large gas in 进行, has anti X射线 issues, therefore can in production inner machine as, can welding magnetic property material. 四, light welding in device production application outlook/prospects light welding technology is types high new technology, due to its has features, especially combined in device 密封焊 in use, currently outer many production device injection molding parts processing utilizing light welding process production device, inner using/adopting process injection molding parts processing more, main/primary is production use device product injection molding parts processing and separation machine in using/adopting types process, using/adopting outer light welding machine relatively more. currently inner light welding machine in property can upper already and outer product versus 差不远, full can 胜任国 inner production device process requirements, price is outer type product 1/3-1/5. is improve/increase inner device overall water and development 民族激 light industry, 我国 传感 device production injection molding parts processing 家应尽 fast using/adopting Domestic light welding machine production processing device, increase product competition force, 开拓国际 market. 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