Ultrasonic cleans technical development and application

Ultrasonic cleans 　 of development reviewing 　 20 centuries 60 time, since ultrasonic technology comes out, scientists discover: The ultrasonic inside certain frequency limits, action at liquid medium in, can achieve the effect that clean. Through the research of period of time and experiment, got satisfactory result not only, and discover its clean efficiency extremely tall, from this ultrasonic cleaning machine is applied gradually go in all trades and professions. Applying initial stage, as a result of the limitation of electronic industry, the volume of power source of ultrasonic rinsing equipment is huger, stability and service life are not quite good, the price is high, general industrial and mining enterprises bears hard, but its clean efficiency and effect outstandingly, the state-owned company that still makes partial actual strength abundant sees admire. As the flying development of electronic industry, the electron of new generation yuan parts of an apparatus emerges in endlessly, the electronic line with new application and new electron yuan parts of an apparatus, the stability of ultrasonic power source and service life rise further, bulk is reduced, the price is reduced gradually. 20 centuries 80 time end, power source of the 3rd acting ultrasonic comes out, already inversion power source, use newest IGBT cell. New ultrasonic power supply has volume small, reliability is high, life is long wait for a characteristic, clean efficiency to be able to rise further, and the price also fell the rate that major company can accept. Ultrasonic cleans ultrasonic of principle 　 　 to basically have mechanical effect (if transmit the particle vibration of medium,displacement, speed, acceleration, sound is pressed wait for mechanical quantity) , fuel factor (sound wave is in transmission process its part energy is absorbed to become heat energy by medium) with cavity. Among them the applied theory foundation that cavity effect is acoustical chemistry, most important also. Cavity effect grows by nucleate, small bubble, 3 paces comprise cavity cave in. In reaction system, tensional weak area exists inside the liquid, the dissolve inside the liquid has gas or aeriform 　 exists on the fluid solid interface in dust namely, as gas nucleus, below ultrasonic action, gas nucleus expands grown, be full of for the liquid steam all round or gas, because great disparity of pressure of inside and outside makes cavity cave in, burst, the sound field energy concentration is released inside cutty time and dinky space, make medium local the high-pressured environment that forms the hundreds of high temperature to thousands of K and more than hundreds atmosphere, produce a very big wallop, have the effect of intense agitate, generate a large number of small bubble at the same time. They serve as new gas nucleus again, make this loop continues, this is cavity effect. Not be all gas nucleuses in the liquid can produce cavity effect of course, when the natural frequency when adscititious ultrasonic frequency and gas nucleus is only same, cavity effect ability happens. The vapour of the temperature of medium of the intensity that also is like sound wave at the same time by other, liquid and medium controls the impact that wait. The ultrasonic frequency of effect of revulsive generation cavity with 20kHz ～ 80kHz most proper. Exorbitant frequency produces cavity effect not easily, although arise to also need much energy, and among them major energy by translate into heat energy, make medium temperature rises apparently. The application of low intensity ultrasonic won't cause any status change of medium, the application that has high strenth ultrasonic only just may have intense effect to medium, cause cavity effect. To most chemical reaction, response rate all follows the addition of sound intensity and increase. But, the effect that the action of ultrasonic intensity suffers medium temperature is great. Consider to make clear, rise as what fluid temperature spends, the influence of sound intensity drops apparently, the cavity effect that produces in 50 ℃ water is the biggest. After the frequency of daily power supply of 50Hz when ultrasonic power source the change is 28KHz, stick the ultrasonic generator that receives the bottom of clear washing trough that washs solution in Cheng Fangqing through outputting cable to carry its (transducer) , by transducer will high frequency electric energy is changed into mechanical vibration to erupt simultaneously shoot to clear lotion in, after high frequency mechanical and oscillatory transmission arrives in the liquid, afore-mentioned cavitation phenomena produce namely inside clear lotion, achieve the goal that clean. Because the frequency of ultrasonic is very tall, the cavitation effect that produces in the liquid can be achieved 28000 times / second, can saying almost is undertaking ceaselessly, the bleb amount that produces as a result of cavitation phenomenon place in the liquid is numerous and omnipresent, accordingly to workpiece it is OK to clean special and complete, even if the work with complex form is in-house, as long as can solution of bring into contact with, can get be cleaninged thoroughly, the bulk because of every bleb is very tiny, accordingly although their burst energy is very high, but to workpiece and liquid, won't produce machinery to destroy with apparent temperature rise. Rinsing equipment of ultrasonic of 　 of ultrasonic equipment 　 basically forms by the following component: Clean groove: Cheng Fang is waited for wash stainless steel of workpiece 　 　 to be made, can install heat reach charge lukewarm unit. Bottom of clear washing trough is stuck receive ultrasonic transducer. Transducer (ultrasonic generator) : Press electric energy changeover transducer of electric pottery and porcelain into 　 of mechanical energy 　 , frequency, power inspects specific type. Power source: Offer place to need power supply of inversion of 　 of electric energy 　 for transducer, import IGBT component, installation sheds protective line too. After transducer changes high frequency electric energy into mechanical energy, what can produce amplitude minimum is high frequency in shake and transmitting the solution inside clear washing trough, below the action of transducer, the interior of clear lotion will generate a large number of tiny bubble ceaselessly and instantaneous burst, the burst of every bleb can generate the bow wave of hundreds degrees high temperature and nearly 1000 atmosphere, erode workpiece clean thereby. Of clear lotion make up the clear lotion that cleaning machine of 　 　 ultrasonic uses to be liquid scour more, compositive mode is: Mixture of exterior activator, go to live in the household of one's in-laws on getting married, other auxiliary, still have other organic dissolvent is like 3 chloric ethylene. Some material becomes his dissolve at water although chroma very hour, can reduce water to be the same as airy surface tension significantly, or the interfacial tension that water is the same as other material, criterion this material calls exterior activator. The molecular structure of water-solubility surface activator has asymmetry, the characteristic of polarity. On the interface that is the same as other photograph in aqueous solution to adsorption, changed physical character of the system greatly so, especially the interfacial tension of face of each phase boundary. According to exterior activator dissolve kisses water radical round place to show the electric sex that come at water, can divide exterior activator reach bisexual surface activator for anion, cation, neutral. The certain metal ion in chela mixture and solution if the Ca2+ , Mg2+ chela that forms stability is fit, make scour has the function that fights hard water sex thereby, specific when be being cleaned to lens, can mix again of lens surface certain the materialize that contains Ca2+ , Mg2+ closes and achieve clean action. The affiliation of certain auxiliary, recrudesce arrives to use with dirty: Amortize action: Make the PH value of scour can maintain stability. To the metal fight corrode action. Can increase the emulsification ability of scour and emulsification stability. Can make solution has very good suspension ability and the capacity that stabilize suspension system, can prevent bilge to sedimentation again. The choice principle of mixture of exterior activator, sting, auxiliary: (The scour that 1) comprises is had stronger clean ability; (2) chemistry is downy, do not injure the content that be washed; (Chemistry does not happen between 3) constituent and make constituent invalidation; (4) has good rinse sex. The use temperature that makes up catharsis fluid and chroma should be decided by particular test. The action of 3 chloric ethylene is the deliquescent action that carries glue of pair of its hanging wall, candle, bitumen and achieve clean a purpose. Ultrasonic cleans optics of craft 　 　 the different process in lens treatment is due and different clean craft, look from integral flow, can divide for 4 working procedure: Catharsis, full, dehydrate, dry. The height that catharsis basically uses organic dissolvent to be like 3 chloric ethylene to wait to hanging wall glue, candle, mould inhibitor dissolves and amount to wash a purpose beforehand, use scour to be opposite next of lens surface wet, permeate, emulsification and action of decontamination of put together complex. Full, be opposite through clear water of lens surface rinse reach supersonic action, make catharsis hind breaks away from lens surface at the scour of lens surface loose. Dehydration: ?   spring  of Jing of rice huller of  of Shan Mu Deng writes  of bridle of refine of  of castrate of spay of  of  of  of Lin Xin of  of castrate of spay of  of  of Zheng of cracking gram  setting out castrate of spay to thank  of  Xiang bead to retreat  Piao Zhuo melt Peng! " a bit Zheng solder a bit  of boundless and indistinct of courtyard of benzyl of ト of  of  of toot of Lang of experienced instrument of  of castrate of spay of collect of adze bad  a bit the dehydrating agent that vapour of desiccative of dizzy?(1) of lap of actinium  wingceltis is surface of liquid of liquid;(2) desiccative and lens in lens surface condensation is formed in all one part of boil content;(3) in all. After passing these courses, make lens surface clean, dry. All be organic dissolvent as a result of use dehydrating agent and desiccative, have to environment and operation personnel more or less influence, to avoid these effects, contemporary ultrasonic cleaned a technology to already undertook reforming to dry technology, use pure water full, and elliptically dehydration, the lens surface after full is pure water state, heat up airing dry by what filter again, it is effectively dry lens already, can avoid organic dissolvent to reach the staff member's influence to the environment again. The ultrasonic of applied 　 　 that ultrasonic cleans is cleaned by increasingly wide application at all trades and professions, for example: ? Culture of science and education of; of optical industry of; of industry of electron of Electromechanical of 　 of 　 of 　 of; of industry of bearing of instrument of; of industry of medical treatment of; of industry of finishing of? of  enemy favour; Horological headgear; Industry of oily chemical industry of stone 　 　 ; Industry of spin printing and dyeing. Below exemple lift as follows: Eletroplate pre-treatment 　 　 eletroplates craft, spend a requirement to workpiece surface cleanness taller, and ultrasonic cleans a technology is the good technology that can obtain this requirement. Use ultrasonic to clean a technology, can replace solvent to clean smeary; Can replace report to remove oily; What can replace steel of carbon of purify of corrode of strong acid dip and low-alloy steel surface is ferruginous reach oxidation skin. In recent years a lot of eletroplate the manufacturer uses ultrasonic of clean of the beauty that do not have stannum to clean technical equipment, replace eletroplate the soda acid with original line handles work score a success, make eletroplate a quality and crop have so relatively bigger rise, improved manufacturing environment. Surface of cold rolling armor plate has oil commonly, corrupt or a few ferruginous, it is easier to should be washed clean, but after be being cleaned via common method, workpiece surface still remains very fine small surplus is grey, influence follow-up machines quality, the method purify that must use strong acid to immerse again sometimes this float is grey. And use ultrasonic to clean and clean fluid appropriately, can achieve workpiece appearance convenient and quickly complete cleanness, make workpiece surface has taller active, can discharge working procedure of activation of dip of the acid before eletroplating even sometimes. Traditional method is use hydrochloric acid or vitriolic immerse clean. If use ultrasonic to handle a technology integratedly, be in OK and quickly inside a few minutes in the meantime the oil of purify workpiece surface, rust, hydrogen clear problem that because strong acid is cleaned,avoided to accompany generation. Ultrasonic of 　 of pharmacy industry 　 cleans a technology to get through the application of numerous pharmacy business be used extensively, be opposite especially bottle of Xi Lin bottle, fluid of profess to convinced, bring bottle, large infusion bottle clean and a place of strategic importance, natural to butyl glue glue fills in clean a respect, had received nod approval. To bottle kind clean, it is to use ultrasonic to clean a technology to replace original wool to brush machine, it turns through breaking up affusion, supersonic clean, inside and outside is rinsed, air is blown dry, retroflexion wait for flow and come true. No matter why is 　 of filter core 　 planted the filter of utility, after use period of time, can cause as a result of foreign matter the gender is reduced and discard as useless fully, value of common filter core is inferior OK still, but to chemical fibber industry, import filter core only, the price is close 10 thousand yuan, those who abandon is honest regrettablly. If use cleaning machine of ultrasonic filter core, use get together can model ultrasonic cleaning machine, it can concentrate the energy of 1KW above on the radiation face of 200 × 20mm2, supersonic strength is great, can will jam quickly content purify. . Apply to core of filter of film of pottery and porcelain of core of filter of core of core of PP continous filter, activated carbon filter, hollow fiber. Metallic 　 　 is well-known, after metallic great ability becomes silk via extruding, of tinsel exterior often have film of a carbonization and oil, be cleaned with acid or other cleans a method, let contamination purify very hard (rectify dish of silk especially) , one kind ultrasonic washs filar machine is according to producing need actually design walks along silk continuously, efficient rinsing equipment, thick wash a part by clear lotion store pump of groove, transducer, loop, filter and composition of system of pipeline of form a complete set, tinsel classics ultrasonic is thick after washing essence of life, repass is blown dry, finish thereby whole clean a process. Equipment of a complete set of is compositive control, concise, convenient, effect is good, use extensively at silk of tantalum silk, tungsten filament, molybdenum, niobium silk, copper silk (insulating varnish Tu Fuqian) wait for other tinsel. Daily life cleans 　 　 in daily production, glasses, headgear can undertake cleaning with ultrasonic, rate is rapid, without injury, large guesthouse, restaurant cleans tableware with it, it is good to clean the effect not only, still have the effect that exterminates virus. The advantage 　 　 that ultrasonic cleans cleans 　 of effect good 　 to clean means, apply what clean at industry to clean means commonly for handiwork, organic dissolvent is cleaned, vapour gas phase is cleaned, high-pressured water efflux is cleaned and ultrasonic is cleaned. Ultrasonic is cleaned by international fair think current efficiency is highest, the effect cleans means best, its cleaned efficiency to achieve 98% above, clean clean degree also reached top level, and traditional handiwork cleans what clean with organic dissolvent to clean efficiency to be 60%-70% merely, even if atmosphere cleans what clean with high-pressured water efflux to clean efficiency also under 90% . No matter how workpiece form is complex, put its clear lotion inside, as long as be can place of liquid of bring into contact with, of ultrasonic clean action to be able to be achieved. Especially the workpiece that complex to appearance and structure, handiwork and other clean means to cannot undertake effectively cleaning, have clean the effect significantly. The bleb of the generation inside the liquid when cleaning is very even, of workpiece clean the effect very even also consistent. Ultrasonic is cleaned can achieve different result according to different dissolvent, be like 　 : Remove oil, change except rust or phosphor. Cooperate those who clean an agent to use, the depart that quickens contaminant and deliquescent, can prevent effectively to clean fluid to workpiece corrode. Clean 　 of cost low 　 to be in all cleaning in means, clean cost cardinal principle to be able to divide for: Facility cost and spend cost. Service life of ultrasonic rinsing equipment is 10 years about, purchase cost prep above except equipment handiwork is cleaned and outside scrub of organic and alkalescent dissolvent, be cleaned under gas phase and high-pressured water efflux is cleaned, to spending cost, it is 600 × with significant measure 400 × 350mm, power is 1KW, the price is for 10 thousand yuan ultrasonic cleaning machine about exemple, work one hour, bad news report 1 degree, charge is about 0.

5 yuan, basic metal cleans an agent 1 kilogram, the price is 20 yuan about, can use 20-50 repeatedly hour (the basis pollutes degree and decide) , be equivalent to 0.

4-1 yuan / hour, and general work cleans time to be 3-15 only minute can, and clean can be opposite a certain quantity of the workpiece that reachs volume is cleaned at the same time, because of this to spending cost character, use ultrasonic to clean, clean the effect not only best, and clean cost to be equivalent to be less than 0.

04 yuan / , still do not calculate economic labor cost, far under other and of all kinds clean a method. Avoid labor to injure 　 　 to pass onerous physical labor in dirty environment before, need has the complex and mechanical part that cleans by hand for long, after using ultrasonic cleaning machine, improved work environment not only, put an end to handiwork to clean the harm that arises to workpiece, reduced labor intensity, and on the base that increasing clear to wash precision considerably, clean time to shorten for 1/4 original. Ultrasonic is cleaned still can reduce pollution effectively, reduce poisonous dissolvent to the mankind damage. (Hu Xingjun Yang Yan) CNC Milling