Qhov ntsuas kub tsis tu ncua hluav taws xob soldering hlau tsim nrog qhov ntsuas cua txias
Soldering hlau yog cov cuab yeej siv dav hauv kev lag luam xws li cov khoom siv hluav taws xob tsim khoom thiab kev pabcuam. nrog
Nrog rau kev txhim kho thev naus laus zis, kev siv tshuab vuam tsis siv neeg ntawm cov khoom siv hluav taws xob kuj tseem txhim kho tsis tu ncua, tab sis kev siv hluav taws xob soldering hlau.
Cov thev naus laus zis xws li phau ntawv soldering thiab desoldering ntawm cov khoom tseem ceeb. ironing tam sim no
Hlau feem ntau paub txog kev ua haujlwm xws li kev tswj qhov kub thiab txias thiab tiv thaiv kom tsis txhob yaig, thiab nws lub neej kev pab cuam kuj nce ntxiv. muaj
Tom qab siv txhua hnub ntawm cov hluav taws xob soldering hlau, nws qhov seem kub tseem yog qhov siab, thiab nws yuav yog
Hlawv tib neeg, thiab txawm ua rau muaj xwm txheej txaus ntshai xws li hluav taws. Ntau tus neeg siv hluav taws xob hlau tau siv los siv
Kuj tseem muaj kev pheej hmoo ntawm kev kub nyhiab yog tias txhais tes nyob ze rau ntawm qhov kawg ntawm cov hlau soldering kom paub qhov kub ntawm qhov seem ntawm cov hlau soldering. rau
Txhawm rau tso cai rau cov neeg siv nkag siab nkag siab txog lub xeev txias ntawm cov hluav taws xob soldering hlau tom qab siv, nws raug zam kom hnov cov hluav taws xob tam sim no los ntawm tes.
Cov phom sij uas yuav tshwm sim los ntawm qhov seem ntawm qhov kub thiab txias ntawm cov hlau soldering thiab hluav taws kub nyhiab uas yuav tshwm sim, tus qauv tsim muaj qhov ntsuas cua txias.
muaj peev xwm soldering hlau.
Kev soj ntsuam ntawm lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm tus thawj hluav taws xob tiv tauj hlau
Cov hauv qab no yog lub hauv paus ntsiab lus ntawm kev ua haujlwm thiab daim duab kos duab ntawm qhov kub thiab txias ntawm hluav taws xob soldering hlau (saib daim duab 1). hluav taws xob
Tom qab AC220V tau nqis los ntawm R1, ib nrab-yoj tau kho los ntawm D1, lim los ntawm C1 thiab ruaj khov los ntawm D2, nws yog siv los ua kev ua haujlwm sib koom ua ke.
Lub 3582 sib piv cov khoom siv hluav taws xob hluav taws xob ntawm lub cuab yeej IC thiab qhov ntsuas kub ntawm qhov ntsuas hluav taws xob.
Lub thermocouple yog siv los ua qhov ntsuas kub los ntsuas qhov ntxeev ntawm cov hlau soldering, thiab qhov kub ntawm qhov sib txawv raws li qhov kub thiab txias.
electromotive zog. Thaum lub sij hawm ua hauj lwm, lub electromotive quab yuam yog ntxiv rau tus pin ③ ntawm IC-A los ntawm resistor R3, raws li
Nws yog qhov hluav taws xob input davhlau ya nyob twg rau kev tshawb nrhiav thermocouple; thiab ② tus pin yog qhov ntsuas kub qhov hluav taws xob. Ntawm ②, ③ ko taw
Tom qab qhov hluav taws xob ntawm ob qho kawg yog muab piv, nws yog tso tawm los ntawm tus pin ①. Ntawm lawv, cov lus tawm tswv yim resistor R5 ua rau lub teeb liab tawm tswv yim
Thaum fluctuating nyob rau hauv ib tug me me ntau yam, nws tso zis teeb liab raug kaw thiab tsis hloov. Thaum lub thermocouple pom tias qhov kub thiab txias, ③
Tus pin theem qis dua ② tus pin theem, kom cov zis ① tus pin qis. Qhov no ua rau IC-B amplifier
Tus ⑥ tus pin yog tus txheeb ze qis rau qhov tsis ncaj ncees ⑤ tus pin, kom cov zis ⑦ tus pin siab. Txij li thaum IC-B ⑤
Tus pin voltage yog tau los ntawm kev faib qhov voltage ntawm AC220V txog R6 thiab R7. Yog li ntawd, qhov zaus thiab theem yog tag nrho nrog
AC220V yog tib yam. Tom qab muab piv rau qib ⑤ tus pin nrog qib ⑥ tus pin, AC voltage yog tso tawm ntawm ⑦ tus pin. Yuav tsum
Lub AC voltage yog txuas nrog antiparallel nrog D3 thiab D4 txog C2 (ua raws li qhov ua rau hluav taws xob ntawm bidirectional diode).
Lub Circuit Court tswj lub bidirectional thyristor, thiab tswj lub sij hawm conduction ntawm tam sim no siv rau lub cua sov hlau ntawm lub soldering hlau, thiaj li mus paub.
Tam sim no lub hom phiaj ntawm kev tswj qhov kub thiab txias.
Kev txhim kho tsim hluav taws xob hlau tswj Circuit Court
Cov saum toj no-hais thawj qhov kub thiab txias hluav taws xob soldering hlau yog txhim kho, thiab cov nyhuv thermoelectric ntawm cov thermocouple hauv Circuit Court yog siv.
Txhawm rau kom paub qhov ntsuas kub ntawm qhov seem. Thaum disconnecting lub cua sov tswj lub ntsiab Circuit Court ntawm hluav taws xob soldering hlau, muab lub thermocouple
Lub teeb liab hluav taws xob yog coj mus rau qhov sib piv qhov hluav taws xob muaj li ntawm kev sib xyaw op amp. Thaum cov hlau soldering txias
Thaum kawg, lub thermocouple tso zis voltage ua rau cov kev ua hauj lwm amplifier tso zis theem siab, thiab qhov taw qhia LED yog lit.
Nws txhais tau hais tias cov hlau soldering yog txias; thiab thaum txias ntawm cov hlau soldering xaus, cov zis voltage ntawm lub thermocouple yog me me,
Cov khoom siv hluav taws xob ntawm lub tshuab ua haujlwm sib xyaw ua ke tso tawm ib theem qis, thiab LED teeb tawm mus, qhia tias qhov txias ntawm cov hlau soldering dhau lawm.
Los ntawm kev tshawb pom ntawm qhov tso zis hluav taws xob ntawm lub thermocouple, LED teeb tuaj yeem siv los tso saib qhov ntsuas kub, yog li ntawd
Ua kom cov hluav taws xob soldering hlau muaj qhov ntsuas cua txias.
Cov txheej txheem siv tshwj xeeb
Cov hauv qab no yog lub hauv paus ntsiab lus ntawm kev ua haujlwm thiab daim duab kos duab ntawm qhov ntsuas kub tsis tu ncua hluav taws xob soldering hlau nrog cov ntsuas cua txias (saib daim duab 2). siv
Qhov hloov SW1 paub txog kev tswj kev ua haujlwm thiab lub zog tawm ntawm cov hluav taws xob soldering hlau. Thaum hloov SW1 kaw, lub hwj chim
Lub soldering hlau ua haujlwm ib txwm, thiab nws cov ntsiab lus yog tib yam li lub hauv paus ntsiab lus saum toj no, qhov txawv yog tias nws yog soldering.
tom qab kawg.
Thaum hloov SW1 qhib tom qab vuam tiav. U2: A ③ tus pin raug txiav tawm ntawm lub thermocouple,
Ua U2: Tus pin ① tso zis siab, thiab tom qab ntawd ua U2: B amplifier ⑥ tus pin txheeb ze rau qhov tsis ncaj ncees lawm
U2:B ⑤ tus pin siab, yog li cov zis U2:B ⑦ tus pin yeej ib txwm qis. Triac tawm
lub xeev, lub cua sov hlau yog powered, thiab soldering hlau tsis ua hauj lwm. Hauv U2: A ③ ceg ceg thiab cov thermocouple raug txiav
Nyob rau tib lub sijhawm, ob-txheej hloov SW1 txuas lub thermocouple rau U3: Ib tus pin ③, thiab tib lub sijhawm ua rau lub tshuab ua haujlwm sib xyaw ua haujlwm.
Tus pin ⑧ ntawm U3: Lub zog hluav taws xob txuas nrog rau txoj kab hluav taws xob, U3: A pib ua haujlwm, thiab thaum lub cua txias ntawm cov hlau tsis tiav,
Thermocouple tso zis voltage ua U3:A ③ pin voltage siab tshaj ② pin voltage, ua U3:A ① pin
Tso zis siab, teeb lub LED tom qab dhau los ntawm tam sim no limiting resistor R10; thaum qhov kub ntawm cov hlau taub hau poob rau lub teeb
kub, lub thermocouple tso zis voltage ua U3: tus pin ③ tus pin voltage txheeb ze rau ② tus pin voltage yuav
qis, yog li ntawd U3: A ① tus pin outputs qis, thiab LED teeb D5 tawm mus, yog li txias
Qhov taw qhia
