Amagasket akhethekile e-foam silicone okucindezela kwe-PCB: Imibandela yokuhlola ephelele-yemikhiqizo yekhwalithi ephezulu
Ezinqubweni zokukhiqiza ezicindezelayo ezishisayo zama-PCB, ama-FPC, kanye namabhodi amaningi e-HDI, ama-silicone gaskets e-foam asebenza njengezinto ezisetshenziswayo eziyinsiza ezinquma ngokuqondile isivuno sebhodi lokubopha, ukucaba kwendawo, ukungabikho kwamabhamuza noma i-delamination, kanye nokuvimbela ukungcoliswa kwe-copper foil oxidation. Izinto ezivamile zegwebu ezitholakalayo ezithengiswayo ezifana nesipontshi segwebu elivamile, igwebu le-PVC, noma igwebu le-silicone eliphansi lingabangela kalula izibonda ze-PCB, ukuchichima kokunamathelayo, ukungcoliswa kwendawo, kanye nokukhishwa kwebhodi okuholela esikhunjeni. Abathengi nabakhiqizi abaningi bayazabalaza ukuhlukanisa phakathi{2}}nemikhiqizo ephezulu kanye nesezingeni eliphansi. Ngokusekelwe{4}ezimo zangempela zokuhlanganisa ze-PCB zomhlaba, lesi sihloko sisungula isethi yemibandela yokuhlola ekwazi ukulinganiswa, elinganisekayo, nesebenzayo yamagasket e-silicone egwebu le-PCB ukuze ahlukanise ngokunembile imikhiqizo{5}}yezinga eliphezulu ezintweni ezivamile ezinokukhubazeka.
I. Ukuqagela Okuyisisekelo: Izimfuneko Ezincane Zezinto Ezibalulekile Ezifanele Izimo Zokusebenza ze-PCB
-Amagaskhethi e-PCB foam silicone ekhwalithi ephezulu ahluke kakhulu kubathengi abajwayelekile-ibanga noma ukupakisha-izinto zegwebu zebanga; okokusebenza kwawo kufanele kuhlangabezane nezidingo eziqinile zothuli-lwamahhala,{4}}oluphezulu{4}}lokubamba izinga lokushisa kuzinhlelo zokusebenza ze-PCB - lokhu kuhlanganisa umbandela oyisisekelo wokuhlonza imikhiqizo ye-premium.
1. I-substrate yerabha ye-silicone ehlanzekile engenazo izihlungi zokungcola: yenqaba imikhiqizo esezingeni eliphansi equkethe i-PVC, i-EVA, irabha ye-silicone egaywe kabusha, noma izigcwalisi ze-calcium carbonate eziningi; yakhiwe ngo-100%{2}}ngokushisa okuphezulu kwegwebu le-vulcanization, iqinisekisa ukuthi into ehlanzekile futhi ezinzile engathambise, incibilike, noma ibambelele phezulu ngaphansi kwamazinga okushisa aphezulu.
2. Isibabule-asinawo, i-halogen-amahhala, ukuguquguquka okuphansi, i-zero leaching: Izithiyo eziyinhloko zama-PCB bonding cores ubukhona besibabule nokuvuzeka okuyingozi. -Ama-gaskets ekhwalithi ephezulu anamathela ngokuqinile ekwakhiweni kwamahhala kwesulfure, ukuhlangana kwe-RoHS ne-halogen{6}}izitifiketi zamahhala zemvelo, futhi awakhiphi izinto ezibolayo ngaphansi kwezimo zokushisa eziphezulu nezimo zengcindezi-avimbele ngempumelelo ubumnyama be-copper foil, ukungcoliswa kwendawo yebhodi, nokugqwala kwesekethe. Lawa ma-gaskets afanele ukukhiqiza amabhodi we-HDI anembayo, amabhodi aguqukayo e-FPC, kanye namabhodi esekethe e-BMS yamandla amasha.
3. Ukusebenza okuzinzile kulo lonke izinga lokushisa elibanzi: Iyakwazi-isebenza isikhathi eside esizinzile ezindaweni zamabhayisikili ashisayo ukusuka-kusuka ku-50℃kuya ku-250℃, imelana nokuphezulu{7}}kwezinga lokushisa elivamile le-PCB i-vacuum vacuum heat pressing process at 180–220℃, ngaphandle kokuncipha,{8}impushana, okwenza impushana ibe mfushane{8} ilungele ukukhiqizwa okuqhubekayo kwe-high-frequency.
II. Ukubukeka Nesakhiwo: Imininingwane yekhwalithi ibonwa ngeso lenyama (imibandela yokuhlola eyinhloko)
-Ama-silicone e-foam gaskets ekhwalithi ephezulu angakhethwa kuqala ngokusekelwe ekubukekeni, ukuqina, nokushelela kwendawo ngaphandle kwezisetshenziswa ezikhethekile; imininingwane ikhombisa ngokuqondile ukunemba kwenqubo yokukhiqiza.
1. Ukufana okwedlulele kogqinsi: Ugqinsi lwebhodi lulonke kulawulwa ngaphakathi kuka-±0.1 mm, ngaphandle kokuhluka kogqinsi noma ukungalingani kwendawo. Ukucindezela kwe-PCB kuncike kumawasha ngokusatshalaliswa kwengcindezi efanayo; ukushintshashintsha okuphawulekayo kogqinsi kungase kuholele ngokuqondile ekucindezelekeni kwendawo engalingani, okuholela ekulimaleni okufana nokuhlehlisa kwendawo, ukuchezuka kogqinsi, i-delamination, noma amabhamuza.
2. Izimbotshana ezilinganayo nezisatshalaliswe ngokuqinile ezivaleka ngokungaguquguquki: Osayizi bezimbotshana bangaphakathi bafana futhi basakazwa njalo, ngaphandle kwemigodi emikhulu kakhulu, ama-micropores aminyene, noma izimbotshana zendawo{1}}ezintula. Izimbotshana ezifanayo zibalulekile ukuze kuqinisekiswe ukusebenza okunwebekayo kanye nokulingana kwengcindezi; ama-pores angasebenzi abonisa ukusatshalaliswa okungavamile, ukuphindaphinda okungahambisani ngaphansi kokucindezelwa, kanye nokungaqini kahle kokucindezela okuphawulekayo.
3. Indawo kufanele ibe isicaba, ibushelelezi, futhi ingabi nakungcola noma uthuli: ingaphezulu lebhodi kufanele lingabi nezinhlayiya, amabala amnyama, ukubhidlika kwezimbotshana, imihuzuko, ama-burrs, futhi libe nemiphetho esikwe kahle ngaphandle kwemfucumfucu. I-workshop ye-PCB isebenza endaweni yokukhiqiza ehlanzekile; ama-gaskets aphansi angase akhulule impushana noma ama-chips, kuyilapho ukungcola okungaphezulu kunganamathela ngokuqondile ebhodini lesifunda, kubangele amasekhethi amafushane noma amaphutha angaphezulu.
4. Umbala ofanayo ongenakho ukufiphala kombala noma ukufuduka: Umbala uwonke uhlala ufana, ungabonisi ukufiphala noma ukopha kombala ngaphansi kwezimo zokushisa eziphezulu nezimo zokucindezela, ukuvimbela ngempumelelo ukufuduka kombala okungase kungcolise indawo ye-PCB noma ifilimu{1}}elashwe ngaphambili.
III. Izakhiwo Zomzimba Ezibalulekile: Amamethrikhi okusebenza abaluleke kakhulu okuhlanganiswa kwe-PCB (imibandela yokuhlola eyinhloko)
Ukucindezela kwe-PCB kubeka izidingo eziqinile ku-elasticity, ukuqina, kanye nokusebenza okucindezelayo kwama-gaskets-okuhlukanisa okhiye phakathi{1}}kwemikhiqizo yezimboni-ezisezingeni eliphezulu kanye negwebu elivamile le-silicone. Yonke imininingwane ilungiselelwe izimo zokukhiqiza ngobuningi.
1. Ukuhambisana kokuqina okuphelele kanye nobubanzi obunembile:{1}}Ama-gaskets ekhwalithi ephezulu agcina ubulukhuni be-Shore obuzinzile obungu-A5–30, okuvumela ukufaniswa okunembayo kwezinhlobo zamabhodi e-PCB ahlukene. Ubulukhuni obuphakeme bukhethelwa amabhodi aqinile ukuze kuqinisekiswe ukwesekwa okwanele, kuyilapho ubulukhuni obuphansi bukhethwa kumasekethe aphrintiwe aguquguqukayo (ama-FPC) ukuze kuthuthukiswe ukunamathela. Le phrofayela yokuqina elinganiselayo ivimbela ukuqina okweqile ekulimazeni indawo yebhodi noma ukusekela okunganele ngenxa yezinto ezithambile kakhulu.
2. Ukuminyana okulawulwayo nokunwebeka okulinganiselwe: Ibanga elijwayelekile lokuminyana lingu-0.35–0.9 g/cm³, elinokuminyana okufanayo futhi akukho ukuhlukahluka okwenziwe kwasendaweni. Ukuminyana okuphansi kuqinisekisa ukusebenza kwe-cushion kanye nokumunca ukushaqeka, kuyilapho ukuminyana okuphezulu kuthuthukisa ukuzinza kwesakhiwo, kuyenze ifaneleke ngokuphelele izinhlelo zokusebenza ze-PCB{4}}zokucindezela okuphezulu. Isilinganiso sokuminyanisa sigcinwa ngokuqhubekayo ngaphakathi kwemboni-ehamba phambili ebangeni elingu-5%–15%.
3. I-Ultra-ukuqina okuphezulu nokuguqulwa okuphansi kokuminyanisa okungapheli: Ngemva kwemijikelezo engaphezu kwe-100 yezinga lokushisa eliphezulu-nokucindezela okukhulu{4}}izinga lokutakula lihlala Lilikhulu noma lilingana no-95%, ngaphandle kokuwohloka, ukuwohloka, noma ukuncipha kokunwebeka. Imikhiqizo evamile esezingeni eliphansi ibonisa ukuwa unomphela kanye nokwehluleka kwengcindezi efanayo ngemva kokucindezelwa okuphindaphindiwe, okuholela ku-batch{7}}enokukhubazeka okubanzi kwe-PCB, kanti{8}}ama-gaskets ekhwalithi ephezulu akwazi ukumelana-nokusetshenziswa komjikelezo wesikhathi eside nempilo yesevisi ethuthukisiwe kakhulu.
4. Ukukhalipha-okungazweli futhi{2}}ukusebenza okuqinile okuphakeme{2}}Kubonisa ukuqina okuhle kakhulu, kubonisa ukuthambekela okuncane kokuklebhula, ukuphuka, noma ukuqhekeka ngesikhathi sokuqaqa, ukufa{3}}ukusika, noma ukuphindaphinda{4}}izinqubo zokuhlanganisa izinga lokushisa eliphezulu. Ilungele-ukusetshenziswa kwemvamisa emigqeni yokukhiqiza ezenzakalelayo, inciphisa imvamisa yokushintsha esetshenziswayo kanye nokulahleka kwesikhathi sokuphumula.
IV. Ukumelana Nokukhathala Nokuzinza Kokusebenza: Amazinga Abalulekile Okuqina Kokukhiqiza Okuningi
Abakhiqizi be-PCB babeka phambili ukukhiqizwa kwenqwaba okuzinzile, lapho ukumelana nokukhathala, ukumelana nokuguga, nokuzinza kokushisa kwama-spacers kubalulekile ekwehliseni izindleko kanye nokwenza ngcono ukusebenza kahle, kanye nemibandela ebalulekile yokuhlola{0}izingxenye zekhwalithi ephezulu.
1. Ukuqina okuhle kakhulu kwezinga lokushisa eliphezulu-lokushisa: Ngaphansi kokuhamba ngebhayisikili okushisayo okuphindaphindayo okucishe kube ngu-200 degree, okokusebenza akubonisi ukuncipha, ukunwebeka, ukugoqa, noma ukuqina, okubonisa ukuzinza okuvelele kobukhulu ngaphandle kokuchezuka kumapharamitha wokuminyanisa ngenxa yokushintshashintsha kwezinga lokushisa.
2. I-anti-enhle kakhulu yokuguga, ukumelana ne-ozone, nokumelana nesimo sezulu: Ngaphansi kokusebenza isikhathi eside ezindaweni ezivaliwe{2}}zezinga lokushisa eliphezulu, ayinciphisi ngokushesha noma yehluleke, ivimbele ngempumelelo-izinkinga zesikhathi esifushane ezifana nokuqina, ukuqina, noma ukulahlekelwa ukunwebeka, okuyenza ifaneleke izimo zokukhiqiza isisindo esiqhubekayo samahora angu-24.
3. Okunganamatheli-, okusalayo -okukhululekile, futhi kulula ukubunjwa: Phakathi nenqubo yokucindezela, akukho ukunamathela kwenhlaka noma inhlaka eningi evela eshidini{3}elalashiwe okwenzeka ngaphambili; indawo engaphezulu ihlala ihlanzekile futhi kulula ukuyihlanza ngaphandle kokudinga ukwelashwa okwengeziwe kokudiliza, ukuvimbela ukungcoliswa kwe-adhesive endaweni yephaneli nokunciphisa kakhulu amazinga okusebenza kabusha.
V. Ukuhambisana Kwenqubo kanye Namakhono Okwenza Ngokwezifiso: Izidingo Ezibalulekile Zokukhiqiza Okuphezulu-kokuphela kwe-PCB
Lawa ma-silicone gaskets we-premium foam, akhelwe ngokukhethekile imboni ye-PCB, awagcini nje ngokuletha ukusebenza okubalulekile okubalulekile kodwa futhi ahlangabezana nazo zonke izidingo zezinqubo zokukhiqiza ezinembayo.
1. Ukucaciswa okubanzi: Isekela-ukuqina okugcwele okusuka ku-1 kuye ku-50 mm, okutholakala ngefomu lokugoqa, ifomu eligcwele leshidi, i-die{4}}isike umumo wangokwezifiso, noma okuhlukile okunamathelisiwe{5}}okusekelayo, okuhambisana nosayizi abahlukahlukene be-PCB nezinhlobo zemishini yokucindezela ukushisa kwe-vacuum.
2. Ukucushwa okukhethekayo kwe-anti-i-static cleanroom: Ukucaciswa okungenziwa ngendlela oyifisayo -kwezindawo ezimile nezintuli ezizinikele{3}}zokusebenzela mahhala{3}, ukuvimbela ngempumelelo ugesi omile ukuthi ungadonsi izinhlayiya zothuli, ezifanele ukukhiqiza ama-PCB e-elekthronikhi anembile,{4}amabhodi okulawula izimboni aphezulu, namabhodi amasekhethi wamandla amasha.
3. Ihambisana nezinhlobo zamabhodi ahlukahlukene ukuze kuncishiswe i-lamination: Isekela ngokuthembekile izinqubo zokucwenga kwamabhodi aqinile e-FR4, amabhodi aguquguqukayo e-FPC, amabhodi anembayo we-HDI, amabhodi ebhethri e-BMS, namabhodi ayinhlanganisela ye-multilayer, iletha ukusabalalisa kokucindezela okuhle kakhulu nokusebenza kwe-exhaust ukuze kubhekwane ngokuphumelelayo nezinkinga zemboni ezivamile ezifana nokubhuquza kwendawo, ukungalingani, ukujiya, nokuqina.
VI. Isifinyezo: Umusho owodwa uhlukanisa ikhwalithi ye-PCB foam silicone.
Ama-gaskets asezingeni eliphansi: akhiwe ngezinto ezixutshwe nokungcola kwesibabule kanye nemvula; ubukhulu obungalingani, izakhiwo ze-pore ezingavamile, ukuqina okubuthakathaka; kujwayeleke ukuwohloka nokunamathela kumabhodi emazingeni okushisa aphezulu, ukuhlukaniswa kwempushana kaningi, futhi kulahlwa ngobuningi ngemva-kokusetshenziswa isikhathi esifushane, okunciphisa ngokuphawulekayo amanani esivuno se-PCB.
-Ama-silicone gaskets ekhwalithi ephezulu ye-PCB eyigwebu: i-sulphur-ayinawo futhi ayinamanzi, anogqinsi olufanayo, ukwakheka kwezimbotshana ezinhle, ukuqina okulawulekayo nokuminyana, ukuqina okuphezulu nokuguga okuphansi, ukumelana no-250℃thermal cycling, ehlanzekile{3}}engangcolisi{3}}kumabhodi wesifunda, zonke izinhlobo ze-PC ezicindezelayo{B} ezilungele ukukhiqizwa kwe-PC okusebenzisekayo okukhethekile okuthuthukisa ngokuthembekile amazinga esivuno futhi kunciphisa izindleko zokukhiqiza.