SMD ezifuna: ngelotha isiseko ngelotha kunye nobugcisa. SMD ikhaya ezifuna

ngelotha Good nangona ibalulekile njengoko ngokubeka izinto radioactive, kodwa kwakhona ludlala indima ebalulekileyo. Ngoko ke, sicinga ibandla SMD - efunekayo nendlela ekufanele kwenziwe ekhaya kuye.

Igciniwe uqeqesho olufanelekileyo kunye nokuziphatha

Ukuze lusebenze, kufuneka ube:

1. Solder.
2. Amashiya okanye ga.
3. zentsimbi ngelotha.
4. A isiponji encinane.
5. abagawula Side.

Okokuqala, kufuneka ukuba ibandakanye intsimbi ngelotha kungena iplagi. Emva koko amanzi bathele ilula. Xa intsimbi ngelotha lusitsha ukuze kangangokuba akwazi bayinyibilikisa solder, kuyimfuneko ukuba abagubungele (solder) ulwamvila. Emva koko zilutshabalalise kunye isiponji esifumileyo. Ngoko kuyimfuneko ukuphepha ukunxulumana elide ngokugqithiseleyo, ekubeni igcwele emzimbeni. Ukususa kusala solder endala nga kupheliswa kwi ulwamvila imihlathi (kwaye ukuba ayigcine icocekile). Uqeqesho lwenziwa malunga unomathotholo. Yonke kwenziwa amashiya okanye ga kulo. Ukuze wenze oku, agobe iiterminal radio ukuze bakwazi ukungena ibhodi emingxunyeni ngaphandle naziphi na iingxaki. Ngoku makhe sithethe yokwenza njani ukufakelwa inamacandelo SMD.

Ukuqalisa nge iinkcukacha

Ekuqaleni, amacandelo kufakwa emingxunyeni ebhodini ukuba wayethetha ngabo. Kulo mzekelo, gcina iso into yokuba kwakukho wokwephuka. Oku kubaluleke ngokukodwa ukuba izinto ezifana capacitors electrolytic kunye ilight. Kulandelwe sobisi kancinci iziphumo ukuba candelo angaweli kuloo ndawo ezisisigxina (kodwa ungayibaxi). Kanye ngaphambi kokuba uqale ngelotha, musa ukulibala ukuba tipakani sponge ulwamvila kwakhona. Ngoku makhe sijonge indlela SMD obandayo ekhaya phezu ibakala ngelotha.

izitho lokubopha

Ngelotha imadlana kufuneka ibekwe phakathi kwekhadi kunye yesiphelo kwindawo efudumeleyo apho brazing luya kuqhubeka khona. Ukuze ukubonisa umba le nkqubo, eli xesha mayingagqithi imizuzwana 1-2. Unako ke ngoko uzise endaweni yokuba ngelotha lo solder. Nceda uqaphele ukuba esi sigaba umntu ukutshiza wampompoza, ngoko ke lumka. Emva kokuba mzuzu xa imali efunekayo ixesha bayinyibilikisa solder, kuyimfuneko ukuba barhoxe ucingo ukusuka kwindawo apho umba yi soldered. Kuba ukusasazwa yayo uniform kuyimfuneko ukuba baqhube kwincam ngelotha owesibini. Emva koko, ngaphandle ezihambayo umba, kufuneka asuse ifowuni. Kuya kuthatha imizuzwana embalwa, kwaye ndawo ngelotha ukuba uphole. Ngalo lonke eli xesha ke kufuneka ukuba kuqinisekiswe ukuba umba ayikatshintshi indawo yayo. Ezo ntshiyekela unqanyulwe kusetyenziswa mgawuli icala. Kodwa ubone ukuba zange konakale yi ndawo ngelotha.

Ukukhangela umgangatho womsebenzi

Jonga onesiphumo kumphezulu eqhubekayo SMD:

1. Ngokusesikweni, izakubanodibaniso kwindawo zoqhagamshelwano kunye namalungu output. Kule brazing ngokwayo kufuneka umphezulu ogudileyo ekhazimla.
2. Kwimeko kwemilo ungqukuva okanye uqhagamshelwano kunye izikhuseli zoqhagamshelwano osecaleni kufuneka solder itshiswa ususe kwemfuneko. Khumbula ukuba emva kokuba ukusebenza naye ngencam intsimbi ngelotha kusoloko kukho umlinganiselo othile kuyo.
3. Ukuba kukho matte imikrwelo kumphezulu unyibilikise solder kwakhona kwaye, ngaphandle ezishukumayo, ukuvumela ukuba aphole. Ukuba kuyimfuneko, ungadibanisa ayibuyisele amanani amancinane.

Ukususa zalawo yanobhobhozo oluphuma ebhodini, ungasebenzisa kuphela efanelekileyo. Kodwa lo msebenzi ayikho kuyimfuneko, ngenxa yokuba ubukho balo akuyiphazamisi kwaye awukuchaphazeli ukusebenza izikimu. Ngoku makhe ukuhlawula theory ingqalelo ngelotha. Emva koko siya ngokusebenzisa iimpawu ukhetho ngalunye.

theory

uqhagamshelo Solder ukuqonda izinto ezithile zesinyithi usebenzisa ezinye fusible, ngaphezulu. Bombane esetyenziselwa le solder, nimiyo 40% yepeyinti-60% nenkcenkce. Le ingxubevange uba engamanzi sele ngama-180. solders Modern ukuvelisa iityhubhu banciphe, esele igcwele ne resin, ekuzalisekeni umsebenzi obhobhozayo. Le solder eshushu ungakha uxhulumaniso yangaphakathi, ukuba miqathango ilandelayo:

1. Kuyimfuneko ukuba bacoce umphezulu iinxalenye ukuba soldered. Ukuze wenze oku, kubalulekile ukuba ususe zonke bhanya oxide enziwa ngokuhamba kwexesha.
2. Inxalenye kufuneka abeke kwi solder lashushu lobushushu apho yanele bayinyibilikisa solder. Ezinye iingxaki apha kuvela xa kukho indawo enkulu conductivity elungileyo thermal. Emva asisiqalelo angabi ngokwaneleyo amandla ngelotha yentsimbi ukuba shushu isithuba.
3. Kufuneka uthathe unonophelo nokhuseleko ukusuka yesenzo oksijini. Lo msebenzi unako ukwenza isigcino enza olukhuselayo umboniso.

Amaphutha osetyenziswe

Ngoku makhe siqwalasele iimpazamo ezintathu ziqhelekileyo kwaye ukulungisa ngayo kubo;

1. Amalunga solder uthinte incam kwincam ngelotha. Kulo mzekelo ubushushu incinane kakhulu inikezelwa. Kuyimfuneko-voca isicelo ukwenzela ukuba ayifake phakathi kweyokuqala kwincam kunye ngelotha wadala indawo enkulu qha. Emva koko jika SMD quality obandayo.
2. Sebenzisa solder encinane kakhulu kwaye ukumelana kangangexesha. Xa inkqubo iqala, iye ixesha ngumphunga yinxalenye wobhobhozayo. Solder akafumani umaleko yokhuselo, ngenxa - an film oxide. Nendlela ukwenza ufakelo SMD ekhaya? Ngokuba lo ngelotha professional swing zombini intsimbi ngelotha kunye solder.
3. nokususwa kwangethuba kakhulu kwincam namalungu solder. Ubushushu ukuba nzima kwaye ngokukhawuleza.

Unako ukuthatha capacitor for SMD ezifuna ndikuzalisa kanye esandleni.

Brazing wire ezamahala

Ngoku siza kuthabatha practice. Masithi sinawo LED kunye resistor. Kufuneka solder intambo. It iibhodi wesekethe, nezikhonkwane kunye nezinye izinto ezincedisayo lisusiwe. Ukuzalisekisa le njongo kufuneka enze le misebenzi:

1. Susa zokwambathisa evela eziphelweni wire. Kufuneka zicoceke, ngenxa yokuba akhuselwe ukusuka ukufuma neoksijini.
2. Imisonto eziliqela ejijekileyo kweentambo. Oku kuthintela razlohmachivanie zabo ezilandelayo.
3. wire nnjalo iphela. Ngethuba lale nkqubo ke kuyimfuneko ukuba zazise ulwamvila ukufudumala ucingo kunye solder (ekufuneka kusasazwa ngokulinganayo phezu komhlaba).
4. Kunciphise izigqibo resistor kunye LED. Ke kuyimfuneko ukuba tin kubo (akukho nokuba zisetyenziswa iindawo ezindala okanye abatsha) na.
5. Thina ubambe iiclamps ngaxeshanye kwaye ibangela imali encinci solder. Indlela ngamathuba, kufuneka ngokukhawuleza benqumamise intsimbi ngelotha kuphela baya kuhluthiswa ngokulinganayo. Ide solder lukhuni ngokupheleleyo, into akuyomfuneko ukuba angamchukumisi. Ukuba oko kwenzeka, ngoko kukho micro-iintanda, nto leyo echaphazela kakubi ngayo iipropati mechanical kunye zombane imichiza.

ngelotha

Kulo mzekelo, kufuneka iinzame ngaphantsi kwe kowangaphambili, ngokuba apha ikhadi umngxuma ukudlala kakuhle indima isamba ukuba iinkcukacha. Kodwa amava obalulekileyo apha. Ngokufuthi ziziphumo umsebenzi wabaqalayo kukuba scheme oluqalayo ukuba ikhangeleke ngokungathi umqhubi enye enkulu yaye ngokuqhubekayo. Kodwa ingongoma lulula, ngoko emva kokuba umkhwa encinane umphumo uya kuba kumgangatho ophucukileyo.

Ngoku makhe sibone indlela ibandla SMD kule meko. Ekuqaleni, ngelotha imadlana kunye solder ngaxeshanye ezinikwe kwindawo ngelotha. Kwaye kufuneka iziphumo shushu zize zilungelelaniswe, kwaye ibhodi. Kuyimfuneko ukuba ukugcina Ulwamvila de solder lalugubungela ngokulinganayo yonke indawo qha. Emva koko usike ngeenxa kwisangqa emhlabeni site ngayo. Kulo mzekelo, i solder kufuneka isiwe kwelinye icala. Sibona ukuba kubenge- isasazwe phezu kwindawo contact yonke. Emva koko, susa solder. Inyathelo lokugqibela - a ukurhoxiswa ekhawulezayo ahlatywe evela kumalungu solder. Linda de solder uya kufumana ifomu ngasemaphethelweni yaye lukhuni. Oko kunjalo kulo mzekelo, a kwezimilo SMD. Ezishicilelweyo ibhodi yesiphaluka kwi amalinge yokuqala akayi kukhangela kushushu kakhulu, kodwa ekuhambeni kwexesha ungafunda ukwenza kumgangatho onjalo angasokuze abalaseleyo, yaye nenguqulo yemboni.