Kev tshuaj xyuas ntawm cov hom dav dav thiab cov kev xav tau ntawm cov hluav taws xob soldering hlau
Classification ntawm hluav taws xob soldering hlau
Feem ntau siv hluav taws xob soldering hlau tau muab faib ua ob hom: hom cua sov sab hauv thiab sab nraud cua sov hom. Lub taub hau ntawm lub taub hau ntawm cov cua sov sab hauv yog sab nraum cov cua sov hlau. Qhov no soldering hlau heats sai sai thiab yog lub teeb nyob rau hauv qhov hnyav. Lub taub hau ntawm cov cua sov sab nraud hluav taws xob soldering hlau yog ntxig rau hauv cov cua sov hlau. Txawm hais tias nws heats qeeb, nws tseem ruaj khov. Txij li cov hluav taws xob soldering hlau siv los ntawm txhua tus neeg ua haujlwm saib xyuas yog qhov sib txawv, nws yog qhov tsis muaj kev saib xyuas zoo tsis tuaj yeem lav.
Qhov kub ntawm cov hlau soldering
Lub melting point ntawm tin yog 231.8 degrees Celsius, thiab qhov kub ntawm lub taub hau ntawm soldering hlau feem ntau yog siab tshaj 250 degree -350 degree. Thaum cov hlau soldering tau muab tso rau ntawm qhov sib koom ua ke, vim qhov kub ntawm qhov vuam qis, nws yuav siv sij hawm ib ntus kom sov. Thaum lub sij hawm no, feem ntau ntawm cov flux yuav volatilize los yog txawm volatile tiav, ua rau tsis zoo wetting vim tsis muaj flux thaum lub sij hawm ntub dej. Nyob rau tib lub sijhawm, vim qhov sib txawv ntawm qhov kub thiab txias ntawm qhov sib txawv ntawm cov vuam thiab cov vuam, cov txheej txheem sib txuas tsis yooj yim rau kev tsim, thiab nws yog ib qho nyuaj kom tsis txhob muaj cov khoom cuav. Ntxiv mus, tom qab kev tiv thaiv cov nyhuv ntawm cov flux ploj lawm, lub solder yog yooj yim oxidized, thiab qhov zoo tsis tuaj yeem lav.
Ua haujlwm fais fab mov ntawm hluav taws xob soldering hlau
Cov hluav taws xob soldering hlau siv 220 V AC fais fab mov kom sov. Cov hlua hluav taws xob thiab lub plhaub yuav tsum tau insulated, thiab qhov kev tiv thaiv ntawm lub hwj chim qaum thiab lub plhaub yuav tsum siab tshaj 2 0 0 M ohms. Feem ntau siv soldering hlau yog 25W, 30W, 35W, 40W, 45W, thiab 50W. Lub zog hluav taws xob muaj zog dua hlau muaj qhov hluav taws xob qis dua.
Kev soj ntsuam ntawm cov teeb meem yooj yim hauv kev siv hluav taws xob soldering hlau
(1) Tom qab hluav taws xob soldering hlau yog energized, qhov kub yog siab li 250 degrees Celsius. Thaum tsis siv, nws yuav tsum tau muab tso rau ntawm cov hlau soldering. Thaum tsis siv lub sijhawm ntev, lub zog yuav tsum raug txiav tawm kom tsis txhob muaj qhov kub thiab txias ntawm "hlawv" lub taub hau hlau (oxidized). Nws yog ib qho tsim nyog los tiv thaiv cov hluav taws xob soldering hlau los ntawm scalding lwm yam khoom, tshwj xeeb tshaj yog cov hlua fais fab. Yog tias cov txheej txheej rwb thaiv tsev raug hlawv los ntawm cov hlau soldering, nws yuav yooj yim ua rau muaj kev nyab xeeb.
(2) Lub hwj chim ntsaws ntawm cov hluav taws xob soldering hlau muaj ob tug ncej, peb ncej, tshwj xeeb lub hom phiaj, thiab lwm yam, thiab lub workbench yog sib xws.
(3) Tom qab siv lub tshuab hluav taws xob rau lub sijhawm, yuav muaj tin nplai ntawm qhov kawg ntawm cov hlau soldering. Yuav kom ua tau zoo soldering, nws yog tsim nyog los tshem tawm cov tin nplai sab laug los ntawm lub ntsis ntawm lub soldering hlau.
(4) Thaum soldering integrated circuits, hluav taws xob soldering hlau yuav tsum muaj kev ntseeg siab hauv av, los yog siv cov hluav taws kub seem rau soldering tom qab lub hwj chim raug txiav. Los yog siv lub qhov (socket) tshwj xeeb rau kev sib xyaw ua ke, thiab ntsaws cov kev sib txuas ua ke tom qab soldering lub qhov (socket).
(5) Tsis txhob hlawv hluav taws xob soldering hlau khoob. Txiav tawm lub zog thaum tsis siv. Txhawm rau kom tsis txhob kub hnyiab ntawm qhov kawg ntawm cov hlau soldering thiab hlawv cov cua sov xaim vim nrawm oxidation. Kev tua hluav taws yuav ua rau nws lub neej ua haujlwm luv luv.
