清洗機(jī)由超聲波發(fā)生器和超聲波換能器組成,超聲波換能器是由壓電陶瓷材料制造的夾芯式換能器,壓電陶瓷材料在交變電場(chǎng)的作用下會(huì)產(chǎn)生機(jī)械振動(dòng)。 超聲波換能器常見(jiàn)問(wèn)題:
The cleaning machine consists of an ultrasonic generator and an ultrasonic transducer. The ultrasonic transducer is a sandwich type transducer made of piezoelectric ceramic material, which generates mechanical vibration under the action of an alternating electric field. Common problems with ultrasonic transducers:
1."超聲波換能器受潮"一般用兆歐表檢查和換能器相連接的插頭,檢查換能器正負(fù)極間的絕緣電阻值就可以判斷。一般要求絕緣電阻大于30兆歐以上。如果達(dá)不到這個(gè)絕緣電阻值,很可能是換能器受潮。維修方法是把換能器整體(不包括噴塑外殼)放進(jìn)烘箱設(shè)定100℃左右,烘干三小時(shí)或者使用電吹風(fēng)去潮阻值正常為止。換能器振子打火,陶瓷材料碎裂。維修時(shí)可以用肉眼和兆歐表結(jié)合檢查。一般作為應(yīng)急處理的措施,可以把個(gè)別損壞的換能器斷開(kāi),不會(huì)影響到別的換能器正常使用。
1. "Ultrasonic transducers are damp". Generally, a megohmmeter is used to check the plug connected to the transducer, and the insulation resistance value between the positive and negative poles of the transducer can be checked to determine. Generally, it is required that the insulation resistance be greater than 30 megaohms or above. If the insulation resistance value cannot be reached, it is likely that the transducer is damp. The maintenance method is to place the entire transducer (excluding the spray coated casing) in an oven set at around 100 ℃, dry for three hours or use a hair dryer to remove moisture until the resistance value is normal. The transducer oscillator ignites, causing the ceramic material to shatter. During maintenance, a combination of visual inspection and a megohmmeter can be used for inspection. As a general emergency measure, individual damaged transducers can be disconnected without affecting the normal use of other transducers.
2."換能器脫膠"我們知道大多數(shù)廠家采用膠粘的方式固定換能器,但超聲波清洗機(jī)的長(zhǎng)期使用后由于振動(dòng)會(huì)出現(xiàn)脫膠現(xiàn)象。也有廠家采用膠結(jié)加螺釘緊固的方式,一般情況下不會(huì)出現(xiàn)脫膠,由于螺釘?shù)淖饔?,振子脫膠后不會(huì)從振動(dòng)面上落下,一般的判斷方法是用手輕搖振子的尾部,仔細(xì)觀察振動(dòng)面的膠水情況做出判斷。
We know that most manufacturers use adhesive to fix the transducer, but ultrasonic cleaning machines may experience delamination due to vibration after long-term use. Some manufacturers also use the method of bonding and fastening with screws, which generally does not cause delamination. Due to the action of the screws, the oscillator will not fall off the vibration surface after delamination. The general judgment method is to gently shake the tail of the oscillator by hand and carefully observe the glue situation on the vibration surface to make a judgment.
3.一般振子出現(xiàn)脫膠以后超聲波電源輸出的功率正常,但是由于振子與振動(dòng)面連接不好,振動(dòng)面的振動(dòng)效果不好,長(zhǎng)時(shí)間后由于能量無(wú)法釋放出去,很可能會(huì)燒壞振子。振子脫膠對(duì)于用戶來(lái)說(shuō)維修起來(lái)是比較麻煩的,一般情況只能送回生產(chǎn)廠家進(jìn)行維修處理。避免振子脫膠有效的方法是平時(shí)使用中注意不撞擊振動(dòng)面。
3. Generally, after the detachment of the oscillator, the output power of the ultrasonic power supply is normal. However, due to poor connection between the oscillator and the vibration surface, the vibration effect of the vibration surface is not good. After a long time, the energy cannot be released, and it is likely to burn out the oscillator. The detachment of the oscillator is quite troublesome for users to repair, and in general, it can only be sent back to the manufacturer for repair and treatment. The most effective way to avoid detachment of the oscillator is to be careful not to hit the vibrating surface during normal use.
4."振動(dòng)面穿孔"一般超聲波換能器滿負(fù)荷使用數(shù)年以后可能會(huì)出現(xiàn)振動(dòng)面穿孔的情況,這是由于振動(dòng)面的不銹鋼板長(zhǎng)時(shí)間高頻振動(dòng)疲勞所致,振動(dòng)面穿孔說(shuō)明換能器的使用壽命已經(jīng)到了,維修上一般只能更換。
4. "Perforation of vibration surface" Generally, ultrasonic transducers may experience perforation of vibration surface after several years of full load use, which is caused by long-term high-frequency vibration fatigue of the stainless steel plate on the vibration surface. Perforation of vibration surface indicates that the service life of the transducer has reached its end, and maintenance usually only requires replacement.
超聲波清洗機(jī)發(fā)生器常見(jiàn)問(wèn)題有:
Common problems with ultrasonic cleaning machine generators include:
1.超聲波清洗機(jī)打開(kāi)電源開(kāi)關(guān),指示燈不亮。這種情況維修時(shí)必須檢查電源開(kāi)關(guān)是否完好,漏電開(kāi)關(guān)是否合上。如果開(kāi)關(guān)完好再檢查保險(xiǎn)絲是否過(guò)載熔斷,基本上可以。
1. Turn on the power switch of the ultrasonic cleaning machine, but the indicator light does not light up. When repairing this situation, it is necessary to check whether the power switch is intact and whether the leakage switch is closed. If the switch is intact, checking if the fuse is overloaded and blown can basically solve the problem.
2.打開(kāi)電源開(kāi)關(guān)后,指示燈亮,但沒(méi)有超聲波輸出。這種情況比較復(fù)雜,維修時(shí)檢查換能器與超聲波功率板的連接插頭是否有松脫,然后檢查保險(xiǎn)絲是否熔斷。如果一切正常有可能是超聲功率發(fā)生器內(nèi)部故障,用萬(wàn)用表打電源線明線,火線是否都通。在排除了發(fā)生器故障后再檢查超聲波換能器是否燒壞,是否需要更換。
After turning on the power switch, the indicator light is on, but there is no ultrasonic output. This situation is quite complicated. When repairing, first check if the connection plug between the transducer and the ultrasonic power board is loose, and then check if the fuse is blown. If everything is normal, it is possible that there is an internal fault in the ultrasonic power generator. Use a multimeter to connect the power cord to the open wire and check if all live wires are connected. After troubleshooting the generator, check if the ultrasonic transducer is burnt out and if it needs to be replaced.
3.超聲波清洗機(jī)直流保險(xiǎn)絲熔斷??赡苁钦鳂蚨鸦蚬β使軣龤В部赡苁菗Q能器老化,電流不穩(wěn),這些都可能造成電源發(fā)生器故障。維修時(shí)要多加注意。
3. The DC fuse of the ultrasonic cleaning machine is blown. It may be due to the burnout of rectifier bridge stack or power tube, or it may be due to the aging of transducer and unstable current, all of which can cause power generator failure. Pay more attention during maintenance.
4.超聲波清洗機(jī)打開(kāi)電源開(kāi)關(guān)后,機(jī)器有超聲波輸出,但清洗效果不如以前理想。這種情況大多是使用不當(dāng)造成,比如,清洗槽內(nèi)清洗液液位不當(dāng),過(guò)高或者過(guò)低;超聲波頻率協(xié)調(diào)沒(méi)有調(diào)好;清洗槽內(nèi)液體溫度過(guò)高或過(guò)低;清洗液選用不當(dāng)或者用量不夠。當(dāng)然,也不排除換能器脫膠后使大部分超聲波能量無(wú)法傳遞到清洗液中,這種情況應(yīng)當(dāng)及時(shí)送回廠家維修,以免燒壞振子。
After turning on the power switch of the ultrasonic cleaning machine, the machine has ultrasonic output, but the cleaning effect is not as ideal as before. This situation is mostly caused by improper use, for example, the level of cleaning solution in the cleaning tank is inappropriate, too high or too low; The ultrasound frequency coordination is not properly adjusted; The liquid temperature in the cleaning tank is too high or too low; Improper selection or insufficient use of cleaning solution. Of course, it cannot be ruled out that after the transducer is detached, most of the ultrasonic energy cannot be transmitted to the cleaning solution. In this case, it should be promptly sent back to the manufacturer for repair to avoid burning out the oscillator.
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