Analüüs üldine tüübid ja tehnilised nõuded elektrilised jootmine triikrauad
Klassifikatsioon elektriline jootmine triikraud
K temperatuur jootmine triikraud
The melting point of tin is 231.8 degrees Celsius, and the temperature of the tip of the soldering iron is generally above 250 degree -350 degree . When the soldering iron is placed on the solder joint, due to the low temperature of the weldment, it will take a while to heat up. During this period, most of the flux is likely to volatilize or even Completely volatile, resulting in poor wetting due to lack of flux during wetting. At the same time, due to the large temperature difference between the solder and the weldment, the bonding layer is not easy to form, and it is difficult to avoid false soldering. Moreover, after the protective effect of the flux is lost, the solder is easily oxidized, and the quality cannot be guaranteed.
Töötamine võimsus toide elektriline jootmine triikraud
The elektriline jootmine triik kasutab 220 V AC toide toide toide to soojus. Toit juhe ja kest peaks olema isoleeritud, ja takistus vahel toide juhe ja kest peaks olema suurem kui 2 0 0} M oomid. Tavaliselt kasutatud jootmine triikrauad on 25W, 30W, 35W, 40W, 45W, ja 50W. A rohkem võimas elektriline jootmine raud on a madalam küte traat takistus.
Analüüs of basic problems in the use of electric jootmine triikraud
(1) Pärast elektriline jootmine raud on pingestatud, the temperatuur on as kõrge as 250 kraadi Celsius. Millal mitte in kasutamine, see peaks olema panema peale jootmine triikraud alus. Millal mitte sisse kasutamine a pikk aeg, võimsus peaks olema lõikamine välja to ennetamine kõrge temperatuur alates "põlemine" jootmine jootmine raud ots (oksüdeeritud). see on vajalik et ennetamine elektriline jootmine raud põletus muud komponendid, eriti toide juhe. Kui isolatsioon kiht on põleb poolt jootmine raud, see saab lihtsalt viib ohutus õnnetused.
(2) toide pistik of the elektriline jootmine raud on kaks poolust, kolm poolus, eriotstarbeline, jne, ja töölaud on ühilduv.
(3) After the electric soldering iron is used for a period of time, there will be tin scale on the tip of the soldering iron. For effective soldering, it is necessary to remove the tin scale left by the tip of the soldering iron.
(4) When soldering integrated circuits, the electric soldering iron must be reliably grounded, or use residual heat for soldering after the power is cut off. Or use a special socket for integrated circuits, and plug the integrated circuit after soldering the socket.
(5) Do not burn the electric soldering iron empty. Cut off the power when not in use. In order to avoid burning the tip of the soldering iron and burning the heating wire due to accelerated oxidation. Empty firing will shorten its service life.
