蒸發(fā)器出現(xiàn)漏孔的修補(bǔ)方式:
The repair mode of the leak in the evaporator:
1、針對蒸發(fā)器銅管式蒸發(fā)器,泄漏通常都出現(xiàn)在焊接的地方,找到漏孔以后,應(yīng)及時(shí)補(bǔ)漏。
1, for evaporator copper tube evaporator, leakage usually occurs in the place of welding. After finding the leakage hole, we should make up for leakage in time.
2、針對展示柜蒸發(fā)器不用拆卸就可以補(bǔ)漏的蒸發(fā)器,補(bǔ)焊前,要先剪開展示柜蒸發(fā)器壓縮機(jī)上的封口,并對展示柜蒸發(fā)器稍微加熱,使展示柜蒸發(fā)器內(nèi)制冷劑產(chǎn)生的蒸汽從封口處排出。補(bǔ)焊時(shí),要用銀槍焊,而且通常都是用小號焊槍及焊嘴,同時(shí)火焰不能太強(qiáng),并盡可能地縮短補(bǔ)焊時(shí)間,且動作迅速準(zhǔn)確補(bǔ)漏,防止加熱時(shí)間過長導(dǎo)致展示柜蒸發(fā)器大面積變形。
2, for the evaporator that can be leaks without dismantling the evaporator of the display cabinet, before the repair welding, the seal on the compressor of the evaporator of the display cabinet should be cut first, and the evaporator of the display cabinet is slightly heated so that the steam produced by the refrigerant in the evaporator of the display cabinet is discharged from the seal. When repairing welding, it is necessary to use silver gun welding, and usually use small welding gun and welding nozzle. At the same time, the flame can not be too strong, and as far as possible to shorten the repair welding time, and the action quickly and accurately leakage, prevent the heating time too long to cause large area distortion of the display cabinet evaporator.
3、針對鋁板式的蒸發(fā)器出現(xiàn)的漏孔,補(bǔ)焊時(shí),要先將蒸發(fā)器漏孔的四周清理干凈,再按照以下方法修補(bǔ):
3, in view of the leakage of the aluminum plate evaporator, we must first clean up the leakage of the evaporator before welding, and repair according to the following methods:
①將鋁與錫熔化鑄成2毫米粗的鋁錫焊條,再用三百瓦的電烙鐵將鋁焊錫條熔化,同時(shí)在漏孔處,加熱與摩擦同時(shí)進(jìn)行。
(1) aluminum and tin were melted into 2 mm thick aluminum tin electrode, and then three hundred watts of electric soldering iron was used to melt the aluminum solder bar. At the same time, the heat and friction were carried out at the same time in the hole.
②清除廢棄的電路板銅層,再將剩下的環(huán)氧樹脂板磨成粉末,并過篩后與松香粉混合制成焊劑。在漏孔的四周放少許焊劑,再在有漏孔的地方摩擦電烙鐵與焊條,就可以焊牢漏孔。
Second, remove the copper layer of the discarded circuit board, then the remaining epoxy resin plate is ground into powder, and after screening, the flux is mixed with the rosin powder. A little flux is placed around the leak, and then the electric iron and the electrode are rubbed in the place where there is a leak.
③將自凝粉與自凝水按10:6調(diào)和,等幾分鐘后,將少許調(diào)和液抹在漏孔的地方即可。
(3) reconcile the self coagulating powder with the self condensing water according to 10:6. After a few minutes, put a little mixture of liquid into the hole.
④先取百分之一稀磷酸溶液將漏孔四周處理干凈,片刻之后涂層三氯化鐵,1分鐘以后,用一百瓦電烙鐵進(jìn)行補(bǔ)焊,焊補(bǔ)好后將殘留的助焊劑處理干凈。
(4) the one percent dilute phosphoric acid solution was taken to treat the leak around the hole, and then the iron trichloride was coated after a few minutes. After 1 minutes, the welding was made up with one hundred watts of electric soldering iron, and the residual flux was treated clean after the welding was repaired.