Ka indasteri ea elektronike, PCBA sebetsa bakeng sa thepa ea software namochini oa solderle tjheseletso ka letsoho.Phapang ke efe lipakeng tsa mekhoa ee e 'meli ea ho tjheseletsa, melemo le mathata ke afe?
I. Boleng le Sebetsa sa Welding li Tlase Haholo
1. Ka lebaka la ts'ebeliso ea ERSA, OK, HAKKO le crack le tse ling tsa boleng bo phahameng ba lisebelisoa tsa motlakase tse bohlale, boleng ba welding bo ntlafalitsoe, empa ho ntse ho e-na le lintlha tse thata tsa ho laola.Ka mohlala, palo ea solder le tjheseletsa wetting Angle taolo, tjheseletsa tumellano, ditlhoko tsa tekanyo thini ka lesoba metallized.Haholo-holo ha motsoako oa motsoako o entsoe ka khauta, ho hlokahala hore ho tlosoe lesela la khauta le thini bakeng sa karolo e hlokang tjheseletsa ea tin pele ho tjheseletsa, e leng ntho e thata haholo.
2. Manual tjheseletsa e boetse e teng mabaka a batho le mefokolo e meng, ho ke ke ho le thata ho kopana le ditlhoko tsa boleng bo phahameng;Ka mohlala, ka ho eketseha ha boto ea potoloho segokanyipalo le ho eketseha ha botenya ba boto oa potoloho, matla tjheseletsa mocheso eketseha, soldering tšepe tjheseletsa ho bonolo ho isa mocheso sa lekaneng, sebopeho sa ho ka thoeng tjheseletsa kapa ka lesoba solder hloa. bophahamo ha bo fihlelle ditlhoko.Haeba mocheso oa welding o eketsehile ka mokhoa o feteletseng kapa nako ea welding e lelefalitsoe, ho bonolo ho senya boto ea potoloho e hatisitsoeng le ho etsa hore pad e oele.
3. Traditional soldering tšepe hloka hore batho ba bangata ba ho sebelisa ntlha-to-ntlha tjheseletsa ka PCBA.Selection wave soldering e sebelisa flux coating, ebe e futhumatsa boto ea potoloho / flux, ebe e sebelisa nozzle ea welding bakeng sa mokhoa oa ho tjheseletsa.Mokhoa oa tlhahiso ea li-batch tsa indasteri oa mohala oa kopano o amoheloa.Li-nozzles tsa li-welding tsa boholo bo fapaneng li ka chesetsoa ka lihlopha ka ho hula tjheseletsa.Ts'ebetso ea welding hangata e phahame ka makhetlo a mangata ho feta ea letsoho.
II.Leqhubu la Soldering ea Boleng bo Phahameng
1. wave soldering, welding, welding parameters tsa lenonyeletso le leng le le leng la solder li ka "lokisoa", li na le sebaka se lekaneng sa tokiso ea ts'ebetso ho maemo a mang le a mang a tjheseletsa, joalo ka phallo ea bongata ba ho fafatsa, nako ea tjheseletsa, bophahamo ba maqhubu a tjheseletsa le bophahamo ba leqhubu bo ka feto-fetohang. , mefokolo e ka fokotsoa haholo e kanna ea e etsa ka likarolo tsa lesoba zero defect bakeng sa welding, The defect rate (DPM) ea selective wave soldering ke e tlase ka ho fetisisa ha e bapisoa le solder ea manual, through-hole reflow soldering le common wave soldering.
2. wave tjheseletsa ka lebaka la tšebeliso ea programmable selefouno e nyenyane tin silindara le mefuta e fapaneng ya tenyetseha tjheseletsa nozzle, kahoo ka tshebetso tjheseletsa ka programmed ho qoba tse ling tse tsitsitseng le likarolo tse matlafatsang tsa THE PCB B lehlakoreng, e le hore u se ke ua ikopanya le mocheso o phahameng oa solder le ho baka tšenyo, ha ho hlokahale hore u iketsetse terei ea welding le litsela tse ling.
3. Ho tloha papisong pakeng tsa welding ea wave le welding manual, re ka bona hore welding ea wave e na le melemo e mengata e kang boleng bo botle ba ho tjheseletsa, ts'ebetso e phahameng, ho feto-fetoha ha maemo, tekanyo e tlaase ea sekoli, tšilafalo e fokolang le mefuta e sa tšoaneng ea likarolo tsa welding.
Nako ea poso: Oct-28-2021