Ntev npaum li cas cov hlau soldering kub - lub hauv paus ntsiab lus ntawm soldering hlau vuam
Lub zog ntawm 60w soldering hlau yog siab heev, tab sis feem ntau cov hlau soldering yuav tsum tau preheated rau 3-5 feeb. Txawm hais tias koj tuaj yeem pom nws tau kub thiab haus luam yeeb, nws yuav tsis tau mus txog qhov melting point ntawm solder. Lub sij hawm sov so ntawm cov hlau soldering kuj muaj feem xyuam rau kev siv ib puag ncig. Lub sij hawm sov so yuav ntev dua nyob rau hauv ib qho chaw uas muaj cua kub thiab tsis kub. Nws raug nquahu kom siv qee qhov kev tiv thaiv rau cov hlau soldering (xws li ntxiv lub tes tsho) kom ntseeg tau tias cov hlau tuaj yeem kav ntev. Sau cov cua sov kom ncav cuag qhov kub thiab txias.
Lub tshuab hluav taws xob tshiab yuav muaj cov pa luam yeeb me ntsis thiab tsw ntxhiab tsw thaum siv thawj zaug. Muaj ib txheej ntawm cov tshuaj tiv thaiv oxidation ntawm cov hlau soldering, uas yuav tsum tau muab tshem tawm maj mam ua ntej siv. Rau thawj zaug siv, lub solder yuav tsum tau tag nrho pub rau lub ntsis ntawm lub soldering hlau, thiaj li hais tias nws muaj peev xwm nqus tag nrho cov tin thiab ces solder.
Soldering hlau vuam txoj cai
Soldering yog science. Lub hauv paus ntsiab lus ntawm hluav taws xob soldering hlau welding yog kom sov thiab yaj cov khoom solder hlau nrog ib tug rhuab soldering hlau, thiab ces siv cov flux ntws mus rau hauv cov hlau yuav tsum tau welded, thiab tsim ib tug ruaj khov thiab txhim khu kev qha solder sib koom tom qab txias. .
Thaum lub solder yog ib tug tin-lead alloy thiab soldering nto yog tooj liab, lub solder thawj wets lub soldering nto, thiab nrog rau qhov tshwm sim ntawm wetting, lub solder maj mam diffuses mus rau tooj liab hlau, tsim ib tug adhesion txheej nyob rau hauv kev sib cuag ntawm qhov chaw. solder thiab tooj liab hlau, thiaj li hais tias ob yog ruaj khov ua ke. Yog li ntawd, soldering yog ua tiav los ntawm peb lub cev thiab tshuaj txheej txheem ntawm ntub dej, diffusion thiab metallurgy.
1. Wetting: txheej txheem wetting txhais tau hais tias cov melted solder ntws raws cov pob zoo thiab crystallized khoob ntawm cov hlau nto ntawm lub hauv paus hlau los ntawm capillary quab yuam, yog li tsim ib tug adhesion txheej ntawm lub hauv paus hlau yuav tsum welded, yog li ntawd. solder thiab lub hauv paus hlau Cov atoms ntawm cov khoom hlau yog nyob ze rau ib leeg, mus txog qhov deb ntawm lub gravitational quab yuam ntawm lub atoms ua hauj lwm.
Ib puag ncig tej yam kev mob uas ua rau ntub dej: qhov saum npoo ntawm lub hauv paus hlau yuav tsum welded yuav tsum huv si thiab tsis muaj oxides los yog cov kab mob.
Daim duab piv txwv: Tso dej rau ntawm nplooj nplooj los ua cov dej ntws, uas yog, dej tsis tuaj yeem moisten cov paj. Tso dej rau ntawm paj rwb, thiab dej yuav nkag mus rau hauv paj rwb, uas yog, dej tuaj yeem moisten paj rwb.
2. Diffusion: Nrog kev nce qib ntawm wetting, kev sib nrig diffusion ntawm solder thiab base hlau atoms pib tshwm sim. Feem ntau cov atoms nyob rau hauv ib lub xeev ntawm thermal co nyob rau hauv lub lattice lattice, thaum kub nce. Cov kev ua atomic intensifies, thiaj li hais tias cov atoms nyob rau hauv lub molten solder thiab lub hauv paus hlau hla kev sib cuag nto thiab nkag mus rau hauv lub lattice lattice ntawm ib leeg. Qhov txav ceev thiab qhov ntau ntawm cov atom yog txiav txim siab los ntawm cov cua kub thiab lub sijhawm.
3. Metallurgical ua ke: Vim muaj kev sib nrig sib txawv ntawm cov solder thiab lub hauv paus hlau, ib txheej nruab nrab --- hlau compound yog tsim los ntawm ob lub hlau. Yuav kom tau txais kev sib koom ua ke zoo, cov hlau sib txuas yuav tsum tau tsim ntawm cov khoom siv hauv paus yuav tsum tau welded thiab solder. Yog li ntawd lub hauv paus hlau ua tiav ib qho ruaj khov metallurgical daim ntawv cog lus.
