Cov ntaub ntawv dab tsi yog soldering hlau taub hau ua los ntawm
1. Cov ntaub ntawv dab tsi yog cov hlau taub hau ua los ntawm?
Lub taub hau hlau yog tsim los ntawm plaub cov ntaub ntawv hlau: tooj liab, hlau, npib tsib xee, chromium, thiab tin.
Copper - Raws li cov khoom siv hluav taws xob, nws yog cov khoom tseem ceeb ntawm cov hlau taub hau. Nws suav txog li 85 feem pua ntawm cov khoom siv ntawm cov hlau taub hau. Tooj liab muaj cov thermal conductivity zoo, uas yog qhov tsim nyog rau cov cua kub ceev ntawm cov hlau taub hau. Cov lus qhia zoo soldering hlau yog ua los ntawm tooj liab, tab sis qee cov tuam ntxhab siv tooj dag. Txhawm rau txo cov nqi, nws kuj txo qhov kub ntawm soldering hlau. thermal conductivity ntawm lub taub hau.
Hlau - ua lub luag haujlwm tiv thaiv corrosion thiab yog qhov tseem ceeb cuam tshuam rau lub neej kev pab cuam ntawm lub taub hau hlau. Ib tug zoo soldering hlau taub muaj ib tug nplua thiab ntom hlau txheej siv lead ua qauv thiab zoo corrosion kuj. Xws li ib tug soldering hlau taub muaj ib tug ntev kev pab cuam lub neej thiab ib tug zoo tinning nyhuv. Cov neeg tsim khoom nrog cov cuab yeej siv tsis zoo hlau plating feem ntau vam khom lub thickness ntawm cov hlau plating txheej los tswj cov kev pab cuam lub neej ntawm cov hlau taub hau. Feem ntau, yog tias cov hlau plating txheej yog tuab, lub taub hau hlau yuav tsis raug tinned, thiab yog tias nws nyias, nws yuav tsis ruaj.
Nickel - Nws plays lub luag haujlwm ntawm kev tiv thaiv xeb ntawm cov hlau plating txheej, thiab yooj yim rau chrome plating tom qab.
Chromium - tsis lo rau tin, tiv thaiv tin los ntawm kev khiav mus rau lub cev ntawm cov hlau taub hau thaum siv. Feem ntau, lub sij hawm chrome plating ntawm lub taub hau hlau yog ntau tshaj 5 feeb, thiab cov hniav zoo nkauj chrome plating yog li 1 feeb.
Tin - nyob rau hauv lub taub hau, qhov twg lub tin yog siv.
2. Txheej
Cov lus qhia txog kev siv lub neej ntev yuav tsum muaj cov thermal conductivity siab, muaj peev xwm zoo tinning, thiab xyuas kom cov pob qij txha tsis sib xws. Ntau lub taub hau duab tuaj yeem siv rau vuam thiab disassembly ntawm ntau yam khoom thiab cov kab, thiab tuaj yeem siv tau ntev yam tsis tau kho cov ntaub ntawv. · Txhawm rau ua kom tau raws li cov kev xav tau saum toj no, ntxiv rau kev siv cov ntaub ntawv tshiab los hloov lub taub hau hlau, nws yuav tsum tau kho tshwj xeeb rau ntawm tooj liab substrate. Kev kho tsis zoo yuav ua rau cov thermal conductivity tsawg lossis nyuaj hauv tinning thiab vuam, lossis lub neej ua haujlwm luv luv. Raws li cov qauv kev soj ntsuam thiab plating kev paub, txoj kev hlau plating, npib tsib xee plating, chrome plating, thiab tin plating feem ntau yog siv. Hlau plating. Qhov saum npoo ntawm tooj liab substrate yog ci ntsa iab kho thiab tom qab ntawd plated nrog hlau. Qhov zoo ntawm cov txheej no ncaj qha cuam tshuam rau kev pabcuam lub neej thiab kev ua haujlwm kub. Txij li cov hlau muaj qhov nruab nrab oxidation tsis kam, lub zog, hnav tsis kam thiab tinning muaj peev xwm ntawm 26O-4O0 degree, hlau plating txheej txheem yog saws nyob rau hauv tsev thiab txawv teb chaws. Raws li cov qauv thiab kev siv, lub taub hau dav dav yog 0.15 ~ O. 2Omm, lub ntsis yog ntau dua 0.2mm, thiab lub thickness ntawm nruab nrab ib feem thiab cua kub kawg yog nyiam dua 0. O7-O. 15ram, yog li koj tuaj yeem tau txais lub neej zoo dua 1 kev ua kom sov
