Incazelo
I-Flux: Ikhemikhali engasiza futhi ikhuthaze inqubo yokushisela, futhi inomphumela wokuvikela futhi ivimbele ukusabela kwe-oxidation. I-Flux ingahlukaniswa ibe okuqinile, uketshezi kanye negesi. Ihlanganisa ikakhulukazi "ukusiza ukushisa ukushisa", "ukukhipha ama-oxides", "ukunciphisa ukushuba kwendawo yezinto ezishiselwayo", "ukususa amabala kawoyela ebusweni bezinto ezishiselwe, ukwandisa indawo yokushisela", "nokuvimbela ukuxutshwa kabusha kwe-oxidation" . Phakathi kwalezi zici, imisebenzi emibili ebaluleke kakhulu yilena: "ukukhipha ama-oxide" kanye "nokunciphisa ukushuba kwesimo sezinto ezishiselwe".
Ukukhetha i-flux Umsebenzi we-flux ukuthuthukisa ukusebenza kokushisela nokuthuthukisa ukuqina kokushisela. I-Flux ingasusa ama-oxide endaweni yensimbi futhi ivimbele ukuthi ingaqhubeki ne-oxidize, ithuthukise umsebenzi we-solder ne-metal surface, ngaleyo ndlela ikhulise ikhono lokumanzisa nokunamathela.
I-Flux ihlanganisa i-asidi eqinile, i-asidi ebuthakathaka, i-neutral flux nezinye izinhlobo. Ama-fluxes asetshenziswa kagesi ngokuvamile ahlanganisa i-rosin, i-rosin solution, i-solder paste namafutha e-solder, njll. I-solder paste namafutha e-solder ayagqwala futhi awakwazi ukusetshenziselwa ukuthengisa izingxenye ze-elekthronikhi namabhodi wesekethe. Ngemuva kwe-soldering, i-solder paste esele kanye namafutha e-solder kufanele kusulwe. I-Rosin kufanele isetshenziswe njenge-flux lapho ufaka izikhonkwane zezingxenye. Uma ibhodi lesifunda eliphrintiwe limbozwe ngesisombululo se-rosin, akukho flux edingekayo lapho kuhlanganiswa izingxenye.
Kubakhiqizi, ayikho indlela yokuhlola ukwakheka kwe-flux. Uma ufuna ukwazi ukuthi i-flux solvent ishintshile yini, ungavele ulinganise amandla adonsela phansi athile. Uma amandla adonsela phansi athile akhuphuka kakhulu, kungaphethwa ngokuthi i-solvent iye yashintshashintsha.
Lapho ukhetha i-flux, kuneziphakamiso ezilandelayo zabakhiqizi:
Okokuqala, phunga iphunga ukuze unqume kusengaphambili ukuthi hlobo luni lwe-solvent olusetshenziswayo. Isibonelo, i-methanol inephunga elincane uma kuqhathaniswa kodwa iyaminyanisa kakhulu, i-isopropyl alcohol inephunga elinzima, kanti i-ethanol inephunga elimnandi. Nakuba umphakeli angase futhi asebenzise i-solvent exubile, uma umphakeli ecelwa ukuba anikeze umbiko wokuqamba, uzowuhlinzeka ngokujwayelekile; Nokho, intengo ye-isopropyl alcohol cishe izikhathi ezingu-3-4 kune-methanol. Uma inani lehliswa kakhulu nomphakeli, kungase kube nzima ukusho okungaphakathi
Okwesibili, nquma isampula. Lena futhi indlela ebaluleke kakhulu yokuthi abakhiqizi abaningi bakhethe i-flux. Lapho uqinisekisa isampula, umphakeli kufanele acelwe ukuthi anikeze umbiko wepharamitha ofanele futhi awuqhathanise nesampula. Uma isampula iqinisekiswa ngokuthi KULUNGILE, ukulethwa okulandelayo kufanele kuqhathaniswe namapharamitha asekuqaleni. Uma kwenzeka okungavamile, amandla adonsela phansi athile, inani le-acidity, njll. kufanele kubhekwe. Inani lentuthu elikhiqizwa ukugeleza kwegazi libuye libe yinkomba ebaluleke kakhulu.
Okwesithathu, imakethe ye-flux ixubile. Lapho ukhetha, kufanele ube nokuqonda okucacile kweziqu zomphakeli. Uma kunesidingo, ungaya kumkhiqizi ukuze ubone imboni. Uma ingumkhiqizi we-flux ongakahleleki, yesaba kakhulu le sethi. Indlela yokusebenzisa i-flux Ngaphambi kokwethula indlela yokusetshenziswa, ake sikhulume ngokuhlukaniswa kwe-flux. Ingahlukaniswa ngochungechunge lwe-non-polar flux. Odayiswa emakethe ubizwa ngokuthi "uwoyela we-solder". Qinisekisa ukuthi uyayihlanza ngemva kokuyisebenzisa, ngaphandle kwalokho kulula ukugqwala nokulimaza into eshiselwe.
Olunye uhlobo i-organic series flux, engabola ngokushesha futhi ishiye izinsalela ezingasebenzi. Olunye uhlobo luwuchungechunge olusebenzayo lwe-resin. Lolu hlobo lwe-flux alugqwali, luvikela kakhulu futhi lunozinzo lwesikhathi eside. Okuvame ukusetshenziswa kakhulu ukufaka i-activator ku-rosin flux.
Ngokuvamile, indlela yokusebenzisa i-aluminium flux ilula. Okokuqala, sula utshwala ku-weld ukuze ususe amabala kawoyela, bese ungasebenzisa i-flux ebusweni ukuze uhlanganiswe, bese ungakwazi ukushisela. Kodwa kufanele ukhumbule ukuyihlanza ngemva kokushisela, futhi unake ukuphepha ngesikhathi sokuyisebenzisa, futhi ungakuvumeli ukuthi ingene emlonyeni, ekhaleni, emphinjeni futhi uxhumane nesikhumba. Uma ingasetshenziswa, vele uyivale bese uyibeka endaweni epholile futhi engenawo umoya.
Isihluthulelo se-soldering circuits nge-tin bars ukuhlanza indawo e-soldering, ukushisa nokuncibilikisa i-rosin endaweni e-soldering noma ukufaka i-flux entweni ezodayiswa, bese usebenzisa i-soldering iron ukuyibhala bese uyikhomba endaweni. ukuze ithengiswe. Ngokuvamile, i-rosin isetshenziselwa ukuthengisa izingxenye ezincane, futhi i-flux isetshenziselwa ukuthengisa izingxenye ezinkulu. I-rosin isetshenziswa emabhodini wesekethe, futhi i-flux isetshenziselwa i-single-piece soldering.
Imiyalelo:
1. Impilo yeshelufu evaliwe iyingxenye yonyaka. Sicela ungafrizi umkhiqizo. Izinga lokushisa elingcono kakhulu lesitoreji: 18℃-25℃, umswakama ongcono kakhulu wesitoreji: 75% -85%.
2. Ngemuva kokuthi i-flux igcinwe isikhathi eside, amandla ayo adonsela phansi kufanele alinganiswe ngaphambi kokusetshenziswa, futhi amandla adonsela phansi athile kufanele ashintshwe abe evamile ngokungeza i-diluent.
3. I-solvent flux iyimpahla yamakhemikhali evuthayo. Kufanele isetshenziswe endaweni enomoya omuhle, kude nomlilo, futhi igweme ilanga eliqondile.
4. Uma usebenzisa i-flux ethangini elivalekile, naka ukulungisa ngokunengqondo ivolumu yesifutho nokucindezela kwesifutho ngokuya ngokusebenza kwesithando somlilo se-wave crest kanye nezici zomkhiqizo.
5. Uma i-flux iqhubeka yengezwa ethangini elivaliwe, inani elincane le-sediment lizoqoqana phansi kwethangi elivaliwe. Uma isikhathi eside, i-sediment izonqwabelana, okungase kubangele ukuthi uhlelo lokufutha lwe-wave crest furnace luvinjwe. Ukuze uvimbele i-sediment ukuthi ivimbele uhlelo lokufutha lwesithando somlilo se-wave crest, esithinta ivolumu yesifutho nesimo sokufutha futhi sibangele izinkinga ze-PCB zokunamathisela, kuyadingeka ukuhlanza njalo nokugcina uhlelo lwesifutho njengethangi elivaliwe nesihlungi. Kunconywa ukuthi ukwenze kanye ngesonto bese ubuyisela i-flux nge-sediment phansi kwe-tank evaliwe.
Ngokusebenza kwe-soldering okwenziwa ngesandla:
1. Zama ukungathululi i-flux eningi ngesikhathi esisodwa, wengeze futhi wengeze ngokuya ngenani lomkhiqizo;
2. Engeza i-diluent engu-1/4 njalo ngehora elingu-1, bese wengeza inani elifanele lokuguquguquka njalo emahoreni ama-2;
3. Ngaphambi kwekhefu lasemini nakusihlwa noma lapho uyeka ukusebenzisa, zama ukuvala ukugeleza kwamanzi;
4. Ngaphambi kokuphuma emsebenzini ebusuku, uthele ngokucophelela i-flux ethreyini uyibuyisele ebhakedeni futhi uhlanze ithreyi ngendwangu ehlanzekile ozoyisebenzisa;
5. Uma usebenzisa i-flux esetshenziswe izolo, engeza i-1/4 diluent kanye nenani eliphindwe kabili le-flux entsha engazange isetshenziswe, ukuze i-flux esetshenziswe izolo ingasetshenziswa ngokugcwele ukugwema ukumosha.
6. Uma usebenzisa i-flux nge-spray noma inqubo ye-foaming, sicela uhlole njalo ukucindezela komoya kwe-compressor yomoya. Kungcono ukuhlunga umswakama namafutha emoyeni ngezinhlelo zokuhlola ukunemba ezingaphezu kwezimbili, futhi usebenzise umoya ominyanisiwe owomile, ongenawo uwoyela, futhi ongenamanzi ukuze ugweme ukuthikameza ukwakheka nokusebenza kokugeleza.
7. Naka ukulungiswa kwesifutho lapho ufutha, futhi uqiniseke ukuthi i-flux isatshalaliswa ngokulinganayo endaweni ye-PCB.
8. Igagasi lethini liyisicaba, i-PCB ayikhubazekile, futhi kungatholakala umphumela ofanayo.
9. Uma i-PCB efakwe ethini ifakwe i-oxidized kakhulu, sicela wenze ukwelashwa okufanele kwangaphambili ukuze uqinisekise ikhwalithi kanye nokudayiswa.
10. I-flux engavaliwe kufanele ivalwe ngaphambi kokugcinwa. Ungatheli i-flux esetshenzisiwe uyibuyisele ephaketheni lokuqala ukuze uqinisekise ukuhlanzeka koketshezi lokuqala.
11. Ukuguquguquka okulahliwe kudinga ukuphathwa ngumuntu ozinikele futhi akunakulahlwa ngokuthanda kwakho ukuze kungcolise imvelo.
12. Ngesikhathi sokusebenza, ibhodi elingenalutho kanye nonyawo lwezingxenye kufanele kuvinjelwe ukungcoliswa umjuluko, amabala ezandla, ukhilimu wobuso, amafutha noma ezinye izinto. Ngaphambi kokuthi i-welding iqedwe futhi ingasomi ngokuphelele, sicela uyigcine ihlanzekile futhi ungayingcolisi ngezandla zakho. 13. Inani le-flux coating lincike ezidingweni zomkhiqizo. Inani elinconywayo lokugeleza kwamabhodi anohlangothi olulodwa ngu-25-55ml/min, futhi inani elinconyiwe lokugeleza kwamabhodi anezinhlangothi ezimbili ngu-35-65ml/min.
14. Uma i-flux isetshenziswa ngenqubo yokugwaza, kuyadingeka ukulawula amandla adonsela phansi athile ukuze kuvinjelwe ukwakheka nokusebenza kwe-flux ukuthi kuthinteke ukuguquguquka kwe-solvents ku-flux, ukwanda kwamandla adonsela phansi athile, kanye ukwanda kwe-flux concentration. Kunconywa ukuthola amandla adonsela phansi athile ngemva kwamahora ama-2 okukhihliza amagwebu. Lapho amandla adonsela phansi athile enyuka, engeza inani elifanele le-diluent ukuze ulilungise. Ibanga elinconyiwe lokulawula amandla adonsela phansi lithi ±0.01 lobunzima obuthile bokucaciswa koketshezi lwangempela. 15. Izinga lokushisa langaphambi kokushisa kwe-flux, izinga lokushisa elinconywayo lephansi lebhodi elihlangothini olulodwa lingu-75-105℃ (izinga lokushisa elinconywayo lebhodi elihlangothini olulodwa lingu-60-90℃), kanye nezinga lokushisa elinconywayo. ngoba phansi kwebhodi elinezinhlangothi ezimbili kungu-85-120℃ (izinga lokushisa elinconywayo lebhodi elizinhlangothi zombili lingu-70-95℃).
16. Ukuze uthole ezinye izinyathelo zokuphepha, sicela ubheke I-Material Safety Specification Sheet (MSDS) ehlinzekwe inkampani yethu.
Imishini yokushisela i-Xinfa inezici zekhwalithi ephezulu nenani eliphansi. Ukuze uthole imininingwane, sicela uvakashele:Abakhiqizi Bezinto Zokushisela Nezokusika - Imboni Yokushisela Nokusika YaseChina Nabahlinzeki (xinfatools.com)
Isikhathi sokuthumela: Aug-29-2024
