Qhov laj thawj yog vim li cas qhov ntxeev ntawm cov hluav taws xob soldering hlau tsis noj tin vim oxidation
Qhov teeb meem ntawm kev kub hnyiab hlau lub taub yog qhov txaus ntshai tshaj plaws rau lub ntsej muag thaum siv hluav taws xob soldering hlau. Cov txheej txheem uas tau muab tso ua ke thoob plaws hauv lub xyoo yuav raug muab faib ua cov hauv qab no thaum daws qhov teeb meem no.
Peb yuav tsum xub to taub qhov ua rau ntawm cov hluav taws xob soldering hlau tsis ua hauj lwm rau haus tin kom tsis txhob lub taub hau los ntawm hlawv mus rau qhov tuag. Lub taub hau hlau yog feem ntau tsis noj tin vim nws tau khoob rau lub sijhawm ntau heev. Cov phooj ywg uas tshiab rau kev siv tshuab hluav taws xob welding feem ntau ua qhov yuam kev no. Lub taub hau hlau ua kom sov mus txog qhov kub thiab txias ntawm li 380 degrees thaum kub hnyiab hauv huab cua thaum nws khoob.
Nws tau muab faib ua ob qhov xwm txheej, nyob ntawm seb lub taub hau ntawm cov hlau yog tooj liab lossis hlau hlau, qhov tshwm sim yog txawv.
(1) Lub taub hau hlau yog tooj liab
Nws yuav chemically reacts nrog oxygen nyob rau hauv cov huab cua thiab tsim dub tooj liab oxide nyob rau saum npoo. Yog hais tias lub solder yog melted, yuav muaj ib tug kheej kheej kua ntawm tin nyob rau saum npoo ntawm lub qub hlau taub hau. Yog tias oxidation hnyav heev, nws yuav tsis lo rau lub tin kiag li. Qhov no yog lub npe hu ua "Cov lus qhia hlau tsis txhob noj tin".
(2) Lub taub hau ntawm lub taub hau ntawm cov hluav taws xob soldering hlau yog hlau hlau
Vim lub sij hawm ntev kub kub, nws yuav tig mus ua dub ferric oxide. Cov hlau no kuj yog heev unpalatable rau tin.
2. Yuav ua li cas nrog soldering hlau taub tsis noj tin
Cov lus qhia hlau soldering feem ntau yog siv tooj liab, thiab tseem muaj cov lus qhia hlau uas ua los ntawm cov alloys. Lub taub hau hlau no feem ntau yog tsim los ntawm tsib hlau: tooj liab, hlau, npib tsib xee, chromium, thiab tin.
Rau tooj liab soldering hlau taub, thaum nws yog oxidized, qhov saum npoo ntawm soldering hlau taub yuav polished nrog sandpaper vim hais tias cov tooj liab kuj yog mos. Thaum nws yog solderable kub, muab lub taub hau ib co tin kawg kom nws npaj txhij siv. Thaum siv tooj liab soldering hlau taub, nws tseem yuav pom tias hom ntawm cov hlau taub hau no yuav muaj qhov zawj nyob rau hauv nruab nrab ntawm cov hlau taub hau vim thermal corrosion. Polished mus rau ib tug kaj tiav.
Rau cov lus qhia ntawm cov hlau uas ua los ntawm tooj liab alloy, thaum cov qib ntawm oxidation tsis siab, koj tuaj yeem siv cov ntawv xuab zeb los txhuam qhov saum npoo ntawm cov hlau taub hau, tom qab ntawd kub nws thiab dip nrog rosin thiab tin. Nyob rau hauv kev siv, koj yuav pom tias yog lub soldering hlau taub yog kub hnyiab tau rau lub sij hawm ntev thiab qhov kub thiab txias, thaum kub nce mus txog 470 degrees, lub degree ntawm oxidation ntawm lub soldering hlau taub yuav nce, uas ua rau ib tug tuab oxide txheej. . Lub sijhawm no, cov ntawv xuab zeb yuav tsis pab. Koj yuav tsum siv ib tug me me Cov ntaub ntawv yuav tsum tau sharpened tiv thaiv lub ntsis ntawm lub soldering hlau.
Tsis tas li ntawd, rau lub neej ntev hluav taws xob soldering hlau taub hau ua los ntawm hlau-nickel alloy, nws tsis tuaj yeem siv cov ntawv xuab zeb lossis cov ntaub ntawv los ntxuav nws qhov chaw. Ntawm no, nws yuav tsum tau txhuam nrog ib daim ntaub tshwj xeeb tin los yog daim ntaub ntub dej hauv qab cua sov. Koj tuaj yeem siv cov hlau nplaum los txiav txim seb cov hlau nplaum uas koj siv yog lub neej ntev ntawm cov hlau nplaum. Tsuas yog muab cov hlau nplaum rau ntawm qhov chaw ntawm cov hlau nplaum. Yog hais tias ob qho tib si muaj lub zog sib nqus, nws yog lub neej ntev ntawm cov hlau taub hau. Yog tsis yog, nws yog ib qho yooj yim soldering hlau. taub hau.
Nyob rau hauv qhov xwm txheej hnyav, tag nrho cov ntsiab lus ntawm lub taub hau hlau yuav raug oxidized, thiab lub taub hau hlau tsis tuaj yeem tinned nrog cov ntawv xuab zeb thiab cov ntaub ntawv. Nyob rau hauv cov ntaub ntawv no, nws yog tsim nyog los xav txog kev hloov lub soldering hlau taub. Tsis muaj kev pab cawm siav.
