Taw qhia rau soldering siv ib tug hluav taws xob soldering hlau
Tin welding yog ib qho kev tshawb fawb, thiab lub hauv paus ntsiab lus ntawm hluav taws xob soldering yog kom sov thiab yaj cov khoom siv hlau los ntawm cov hlau rhuab. Nrog kev pab ntawm flux, nws ntws mus rau hauv cov hlau yuav tsum tau soldered, thiab tom qab txias, nws tsim ib tug ruaj khov thiab txhim khu kev qha vuam taw tes.
Thaum lub solder yog ua los ntawm tin txhuas alloy thiab vuam nto yog ua los ntawm tooj liab, lub solder thawj wets lub vuam nto. Nrog rau qhov tshwm sim ntawm ntub dej tshwm sim, lub solder maj mam diffuses ntawm cov hlau tooj, tsim ib tug adhesion txheej nyob rau hauv kev sib cuag nto ntawm lub solder thiab hlau tooj liab, ua rau ob lub ruaj khov. Yog li ntawd, soldering yog ua tiav los ntawm peb lub cev thiab tshuaj txheej txheem: ntub dej, diffusion, thiab metallurgical ua ke.
1. Kev ntub dej: Cov txheej txheem ntub dej yog hais txog kev siv lub zog capillary rau diffuse molten solder raws cov pob zoo thiab crystalline qhov khoob ntawm qhov chaw ntawm lub hauv paus hlau, tsim ib txheej txuas rau ntawm qhov chaw ntawm lub hauv paus hlau, ua rau cov atoms. lub solder thiab lub hauv paus hlau nyob ze rau ib leeg, thiab ua tiav qhov kev ncua deb ntawm atomic gravity ua.
Ib puag ncig tej yam kev mob uas ua rau ntub dej: Qhov saum npoo ntawm cov khoom siv welded yuav tsum huv si thiab tsis muaj oxides lossis cov pa phem.
Daim duab piv txwv: Muab cov dej tso rau ntawm nplooj nplooj los ua cov dej ntws tawm txhais tau hais tias dej tsis tuaj yeem ntub cov paj. Tso dej rau hauv paj rwb tso cai rau nws nkag mus rau hauv paj rwb, ua rau nws ntub.
2. Diffusion: Nrog rau cov txheej txheem ntub dej, qhov tshwm sim ntawm kev sib nrig sib txawv ntawm cov solder thiab lub hauv paus hlau atoms pib tshwm sim. Feem ntau, cov atoms nyob rau hauv lub thermal vibrational lub xeev nyob rau hauv lub lattice lattice, thiab thaum kub nce. Kev ua haujlwm atomic intensifies, ua rau lub melted solder thiab atoms nyob rau hauv lub hauv paus cov ntaub ntawv los mus hla lub contact nto thiab nkag mus rau ib leeg lub lattice lattice. Qhov ceev thiab tus naj npawb ntawm atomic txav yog txiav txim los ntawm qhov kub thiab txias thiab lub sijhawm cua sov.
3. Metallurgical bonding: Vim muaj kev sib nrig sib txawv ntawm cov solder thiab lub hauv paus hlau, ib txheej nruab nrab - ib tug hlau compound - yog tsim ntawm ob hlau. Txhawm rau kom tau txais cov pob qij txha zoo, cov hlau sib txuas yuav tsum tau tsim los ntawm cov welded puag hlau thiab cov hlua khi kom ua tiav cov khoom siv hlau muaj zog ntawm lub hauv paus hlau.
