Thaum muaj ib tug muaj lub siab xav ua rau koj tus kheej siv hluav taws xob, nws yog tsim nyog los npaj ib tug soldering hlau, solder thiab rosin. Ntawm cov hoob kawm, tsis txhob hnov qab txog lub ntsiab lus ntawm lub tswvyim ncaj qha, tab sis peb xav nyob rau hauv ua qhov zoo ntawm cov soldering txheej txheem. Yog vim li cas peb yuav tsum tau rosin? Nyob rau nws, peb tam sim no tham txog.
Yuav ua li cas yog rosin?
Koj kuj yuav tau pom nyob rau hauv khw muag khoom noj, tswj qhov muag ntawm Cheebtsam rau cov creation ntawm nws cov khoom, ib pob tshab glassy yam khoom uas yog dog dig uas zoo sib xws rau Amber li koj cov tsos thiab xim. Qhov no rosin ntoo thuv. Rau cov thawj lub sij hawm no cov ntaub ntawv uas tau txais nyob rau hauv lub Greek nroog ntawm Colophon, thiab yog Ameslikas hu ua "kolofonskoy cob." Lawv muab rho tawm nws los ntawm Turpentine cob. Nws yog tau los ntawm ntau hom ntawm cov ntoo thuv, nkauj nraug nws los ntawm Turpentine thiab lwm yam volatile tshuaj los ntawm txoj kev ib tug chav da dej. Nyob rau tib lub sij hawm tag nrho cov uas tsis yog-volatile impurities merged. Distillation yog nqa tawm siv ib tug khub uas nws kub yog 200 degrees. Qhov no xam tsis ua rau cov decomposition ntawm rosin.
tiam
Tam sim no rosin yuav muab tau los ntawm pulverized ntoo thuv ntoo nrog kev pab los ntawm tshwj xeeb kuab tshuaj los yog ua los ntawm siab cov roj los yog cellulose. Tsis hais txog ntawm txoj kev xws cais hom:
- Ntoo thuv.
- Siab.
- Extraction.
Niaj hnub nimno rosin 60-90 feem pua muaj abietic acid cob, 1-12% ntawm cov fatty acids thiab nruab nrab tebchaw (xws li triterpenoids, diterpenoids thiab sesquiterpenoids). Nws yuav tsis tau yaj los ntawm dej, tab sis ib tug dej cawv, ether, benzene, acetone thiab me ntsis zuj zus tshaj kerosene yuav kom nws ua li ntawd. Thaum 40 degrees rosin pib mus soften, thiab nyob rau ntawm 100 twb melted. Thaum lub kub nce mus txog 250 degrees, nws boils. Yog hais tias peb ntxiv mineral thiab organic teeb meem, koj tau xab npum. Yog hais tias koj yaj nws nyob rau hauv lub polyol, ces koj yuav muaj ib tug rosin ester. Raws li koj tau pom, ib tug ntau ntawm daim ntawv sau npe. Ntawm cov hoob kawm, tus tov tshaj plaws ua yog thaum cov tes ntoo thuv rosin. Cov chaw tsim tshuaj paus yuav tsum xyuas kom meej tias cov khoom raws li tag nrho cov uas yuav tsum tau ntawm lub xeev cov qauv (muaj tsis muaj lwm impurities los yog ib yam dab tsi lwm tus).
zog
Lawv tus kheej muaj zoo yam ntxwv ntoo thuv rosin. GOST 19113-84 kom cov ntawm no lub caij mus ntsib zoo thiab kev nyab xeeb rau cov neeg uas ua hauj lwm nrog nws. Nws pib mus soften ntawm 68 degree tshav kub. Nws tseem yog yuav luag tsis muaj fatty acid. Qhov no rosin yog xav tau kiag li ntuj thiab tus phooj ywg environmentally khoom. Nws muaj amber xim. Extraction thiab Talovaya rosin xam tau tias yog dag. Lawv txawv, thiab lawv cov xim. Tab sis txawm qhov txawv cov hau kev ntawm kev npaj, lawv lub zog yog pom tau hais tias yuav nyob ze rau dab tsi yog ib tug natural khoom, uas yog ib tug ntoo thuv rosin. Heev npaum li cas menyuam enhanced tuav, uas yog nruab nrab ntawm cov hniav thaum uas siv cov qauv. Tsis tas li ntawd lub rosin muaj zoo detergency thiab tob tob (rau cov ether thiab haus dej haus cawv kev daws teeb meem) zog. Cov yav tas coj mus rau nws siv raws li ib tug waterproofing neeg sawv cev. Nws kuj yuav siv tau raws li ib tug nplaum.
Daim ntawv thov nyob rau hauv kev xyaum
Lub ntsiab daim ntawv thov hnub no - yog los pab thaum lub sij hawm soldering hlau qhov chaw. Yog li ntawd, raws li cov ntoo thuv rosin soldering flux uas qhia ib tug zoo tshwm sim. Txawm tias muaj tseeb hais tias muaj yog ib tug xov tooj tseem ceeb uas niaj hnub tshuaj kev tshawb fawb, nws yog tseem siv nyob rau hauv electronics thiab hluav taws xob engineering. Yog li, lub molten rosin ntoo thuv tsis muaj teeb meem yuav tshem tawm cov oxide txheej uas yog nyob rau ntawm qhov chaw ntawm lub qhov chaw yuav tsum tau soldered. Tseem ceeb yog tias nws thiaj li nto nro ntawm cov tshuaj lo. Qhov no ua rau nws ntau evenly kis rau cov ua hauj lwm dav hlau. Cov kev siv ntawm tej flux tsub kom qhov zoo tshaj ntawm cov tshuaj lo siv. nws kuj muaj ib tug tej yam kev tiv thaiv nyhuv tiv thaiv ntau yam ambient vapor ib puag ncig. Tsis tas li ntawd, kom tau khaws cia rau hauv lub chaw thiab feem xyuam rau txoj acidic neutrality. Qhov no yog tau ua tsaug rau qhov kev siv ntawm raw cov ntaub ntawv ntawm tej yam ntuj tso keeb kwm. Yog li ntawd, soldering yog tsis raug mus rau xeb tshaj lub sij hawm thiab tsis muaj to tam sim no. Cov kev tseem ceeb ntawm qhov no yog thaum lub sij hawm lub rooj sib txoos ntawm hluav taws xob circuits. Tsis tas li ntawd, ntoo thuv, Talovaya thiab rosin tej zaum yuav siv ua ke nrog cov ntshiab ethanol nyob rau hauv ib qho ratio ntawm 4 mus rau 6 kom tau ib tug kua flux. Siv rosin yuav txawm tias cov neeg uas tuav ib tug soldering hlau rau cov thawj lub sij hawm nyob rau hauv kuv lub neej. Ua ntej, koj yuav tau sov tuaj ib plev, thiab poob nws nyob rau hauv lub khov substance. Lawv ces muab lo, uas yog siv rau cov solder nto thiab nthuav dav. Yog hais tias tsim nyog, siv lub soldering ntsis yuav tsum muab faib tusyees. Raws li ib tug tshwm sim, yuav tsum tau ib tug monolithic loj, uas yuav txuas ua ke txhua yam uas yog tsim nyog. Muaj daim ntawv thov nyob rau hauv lwm yam liaj teb ntawm tib neeg kev ua si. Yog li ntawd, rosin feeb siv los tshiav cov hlua ntawm stringed seev suab paj nruas, raws li tau hais tias yuav tshiav nws rau hmoov lub xeev, nws yog ua tau kom tau high-quality pa luam yeeb los.
xaus
Raws li koj tau pom, rosin yog ib tug uas zoo heev nyob rau hauv ntau lub teb. Thiab ntseeg coj noj coj ua ntawm tag nrho cov hom ntawm tej yam ntuj tso ntoo thuv occupies substance. Yog hais tias koj xav paub nyob rau hauv kom meej li cas yuav muab ib tug ntoo thuv rosin, GOST 19113-84 pab koj nrog rau qhov no.