PCBA White Spots: Madaidaicin Maganganun Tsabtace Don Haɓaka Haɓaka a Masana'antar Lantarki Mai Buƙata

Ka yi tunanin wannan: Sabbin PCBs ɗin da aka samar suna haɓaka farar fata na kristal bayan kwanaki 3 na ajiya kawai, suna aika yawan amfanin ƙasa daga 98% zuwa 83%. Abin da ya yi kama da ƙaramin lahani na kwaskwarima shine ainihin abin da ke kashe yawan aiki - yana haifar da gajeriyar da'irori, lalata abubuwan ƙima mai ƙima, da lalata ƙa'idodin muhalli. Ga masana'antun da suka mai da hankali kan na'urorin lantarki masu dogaro da yawa, wannan batu ba mai tsada ba ne kawai - yana barazanar gasa kasuwa.

A cikin wannan jagorar, za mu yanke ta cikin hargitsi na PCBA fararen spots, isar da mataki m mafita wanda aka kerarre madaidaicin masana'antu bukatun. Daga binciken da ya rage na minti 5 zuwa ƙayyadaddun matakan tsaftace wurin, za mu taimaka muku kawar da haɗarin farin tabo, inganta yawan amfanin ƙasa, da saduwa da ƙaƙƙarfan ƙa'idodin samar da kayan lantarki na ci gaba.

Sashe na 1: Haɗarin Boyewar Farin Tabo na PCBA (Bayan Batutuwan Sama)

Farin tabo na PCBA-da suka haɗa da ragowar crystalline, hazy halos, da fim ɗin farar fata-sun fi matsalar kyan gani. 

Suna haifar da barazana mai mahimmanci guda uku ga samfuran ku:

1. Rashin Wutar Lantarki : Ragowar juzu'i mai ɗaukar danshi yana haifar da ''microcircuits,'' yana haɓaka jinkirin sigina da haɗarin gajeriyar kewayawa da 40% a cikin manyan na'urori masu aiki.

2. Lalacewar Na'ura: Abubuwan da aka yi da zinari ko azurfa sun lalata a cikin adadin 15% a cikin watanni 3 lokacin da aka fallasa su ga ragowar lalacewa, yana rage tsawon rayuwar samfur.

3. Haɗarin Biyayya: Halogen mahadi a cikin ragowar suna haifar da faɗakarwar takaddun shaida na muhalli, tilasta sake yin aikin taro da jinkirta shigarwar kasuwa.

Sashe na 2: 3 Mahimman Dalilai na Farin Tamburan PCBA

1. Sauran Crystallization Bayan Sayarwa (Mafi Yaɗuwa)

Juyin da ba a cire ba bayan saida ya ƙunshi rosin polymerized da gishirin organometallic. Lokacin da zafi ya wuce 60% - ƙalubalen gama gari a yawancin wuraren samarwa-waɗannan abubuwa suna fuskantar halayen hydration, suna canzawa daga bayyane zuwa fararen lu'ulu'u masu gani. An haɓaka wannan fitowar tare da 'babu mai tsafta,' inda abubuwan da ba a kunna ba suna haifar da ragowar abubuwan da ba za a iya cirewa ba.

2. Matsalolin Mahimmanci a Tsaftace Tsabtace

• Ma'aikatan tsaftacewa marasa jituwa: Haɓaka abubuwan PCB masu sassauƙa don ɗaukar danshi da fari bayan tsaftacewa, babban batu don na'urorin lantarki-fim na bakin ciki.

• Rashin daidaituwa sigogi na ultrasonic: Power a kasa 30W ko zazzabi karkashin 40 ℃ kasa cire solder bukukuwa da manna sharan gona a recessed solder gidajen abinci.

• Jinkirin bushewa: Jiran sama da sa'o'i 6 bayan tsaftacewa yana ba da damar danshi don haɗuwa tare da ragowar, samar da fararen fararen ruwa waɗanda ke lalata aminci.

3. Material Sensitivity a cikin Babban Ƙarshen Abubuwan Ƙarshe

Semiconductor marufi substrates, m PCBs, da sauran ci-gaba na'urori sau da yawa suna da babban tushe abun ciki danshi ko rashin isasshen plating. Zafi a lokacin masana'antu yana haifar da danshi don ƙaura zuwa saman, yayin da ake saka ragowar wanka yana haifar da iskar shaka (misali, samuwar farin nickel oxide akan yadudduka na nickel), yana tasiri kai tsaye aikin na'urar.

Sashe na 3: Maganin Mataki-mataki-Daga Ganewa zuwa Kariya na Tsawon Lokaci

Mataki 1: Ganewar Gaggawar Saurin Minti 5 (Gwajin-Zero-Cost)

Nau'in Rago	Hanyar Gwaji	Magani Tsabtace Niyya
Ragowar Rosin Organic	Shafa da IPA-sauran yana narkewa	Polar sauran ƙarfi mai tsabta da ultrasonic tsaftacewa
Ragowar Ionic	Jiƙa a cikin ruwa mai tsabta - halos ya bayyana	Tsaftace tsaka-tsaki da kurkurewar ruwa mai tsafta-tsalle masu yawa
Plating Oxidation Residue	Babu canji bayan shafe barasa	Jiƙan madaidaicin tsaftar mara lalacewa

Mataki na 2: Takamaiman Tsare-tsaren Tsabtace Yanar Gizo (Don Ƙirƙirar Buƙatu Mai Girma)

Yanayi na 1: Babban Dogarorin Kayan Lantarki na Motoci

Mahimman Mahimman Ciwo: Babban zafin jiki da zafi a cikin yanayin aiki yana hanzarta lalata ragowar, yana haifar da gazawar firikwensin da gajerun kewayawa.

Magani na Musamman:

• Zaɓin mai tsabta: Ƙarƙashin ƙarancin ƙima mai jurewa -40 ℃ ~ 125 ℃, hana hazo na biyu a ƙarƙashin matsanancin yanayi.

• Tsari sigogi: 4% dilution rabo, 50W ultrasonic tsaftacewa (3 mins) da kuma fesa tsaftacewa (1 min), biye da 3-hour bushewa a 60 ℃.

• Garanti mai inganci: Yana wucewa gwajin feshin gishiri na sa'o'i 1000, tare da gurɓataccen ion <1.0μg/cm² - saduwa da ƙaƙƙarfan ƙa'idodin aminci don kayan lantarki mai mahimmanci.

Yanayi na 2: Kayan Wutar Lantarki na Masu Amfani da Jama'a

Mahimman Abubuwan Ciwo: PCBs masu sassauƙa sukan yin fari ko raguwa bayan tsaftace tsari, rage yawan amfanin taro da haɓaka farashi.

Magani na Musamman:

• Zaɓin mai tsafta: dabarar tsaka-tsaki mai ratsawa a hankali (darajar KB 65 ~ 70) mai dacewa da ABS, PI, da sauran sassa masu sassauƙa.

• Tsari sigogi: 40W ultrasonic tsaftacewa (5mins), guda biyu tare da 'stepwise bushewa' (40 ℃ 55 ℃) don kauce wa substrate nakasawa.

• Ƙarfafa Ƙarfafawa: Ana iya sake yin amfani da mai tsaftacewa fiye da sau 8, rage farashin tsaftacewa kowane-tsalle da kashi 35% - madaidaici don layin samarwa mai girma (fiye da raka'a 100,000 / rana).

sakamako mai tsabta akan PCBA IGBT substrate - kafin (hagu) vs bayan ragowar cirewa (dama)

Yanayi na 3: Madaidaicin Zinare-Plated/Semiconductor Substrates

Mahimman Ciwon Ciwo: Plating mai hankali yana da saurin lalacewa, kuma ragowar suna haifar da gazawar marufi a cikin ingantaccen aikace-aikace.

Magani na Musamman:

• Zaɓin mai tsafta: Babu fluorine, mara chlorine, dabara mara ƙarancin lalacewa (ƙididdigar lalata <0.001mm/a) wucewa gwaje-gwajen dacewa da zinare.

• Matsakaicin tsari: Tsabtace ƙarancin zafin jiki (35 ℃), lokacin jiƙa <6 mins, haɗe tare da kurkurawar ruwa mai tsafta (haɓaka <1μS / cm).

• Tabbacin Yardawa: ODP=0, GWP <0.05, saduwa da ƙayyadaddun iyakokin VOC da takaddun muhalli don ci-gaba na lantarki.

Mataki na 3: Zaɓin Tsabtace - Kurakurai 3 don Guji (Ƙara Haɓaka da 10%)

1. Ƙi 'Ɗaya-Yi-Fits-All': A guji masu tsabtace acid don abubuwan da aka yi da zinari; yi amfani da dabarun ƙafewa a hankali don PCB masu sassauƙa don hana raguwa da farar fata.

2. Ba da fifiko 'Kariyar Tsabtace Bayan Bayan': Zaɓi masu tsaftacewa tare da ayyuka biyu 'tsaftacewa da kariya' - suna samar da fim ɗin kariya mai girman nano bayan ƙazantar, yana rage ɗaukar danshi na biyu.

3. Ƙimar Ma'auni da Kuɗi: Zaɓi don masu tsaftacewa da za'a iya sake yin amfani da su (yawan farfadowa ≥80%) don rage farashin kowane rukuni da kashi 30% ba tare da sadaukar da aikin ba.

Mataki na 4: Kariya na Dogon Lokaci-3 Mahimman Gudanarwar Tsabtace Bayan Tsabtatawa

1. Haɓaka Ma'ajiya: Kula da zafi <60% RH, yi amfani da marufi mai tabbatar da ɗanɗano tare da desiccants, kuma guje wa ɗaukar tsayin daka zuwa iskar yanayi.

2. Dubawa na yau da kullun: Gwaji 5% na kowane tsari don gurɓataccen ion (buƙata: <1.5μg/cm²) ta amfani da hanyoyin gwaji mai sauri don sarrafa ingancin lokaci.

3. Tsarin Ganewa: Yi rikodin batches masu tsafta, sigogin tsaftacewa, da lokacin bushewa don gina tsarin amsawa cikin sauri don rashin daidaituwa.

FAQ: Magance Tambayoyin Ƙirƙirar Mahimmancin ku

Q1: Shin mai tsabta ya dace da kayan aikin tsaftacewa na ultrasonic na yanzu?

A1: Cikakken jituwa! Yana aiki tare da masu tsabtace ultrasonic na yau da kullun (ikon 20 ~ 60W) ba tare da buƙatar gyaran kayan aiki ba. Kawai daidaita rabon dilution da lokacin tsaftacewa don dacewa da layin samarwa ku.

Q2: Yadda za a tabbatar da cikakken cire sauran?

A2: An ba da tabbacin dual: ① Maganin gwajin cutarwa na ion kyauta (gwajin gaggawa na minti 5 - abun ciki na ion <1.5μg / cm² = cancanta); ② Gwajin izini na ɓangare na uku (misali, SGS) tare da rahoton yarda da RoHS/REACH don cikakken kwanciyar hankali.

Q3: Shin yana cire ragowar 'babu-tsaftataccen ruwa' yadda ya kamata?

A3: Lallai! An inganta wannan dabarar don babu tsaftataccen ruwa mai tsafta, yadda ya kamata na narkar da rosin polymerized da ba a kunna ba da gishirin organometallic. Hatta farin halo mai taurin kai akan PCB masu kwana 15 suna da adadin cirewa kashi 99.7%-ba tare da farar sakandire ba.

Q4: Yadda za a sarrafa farashin don samar da taro?

A4: Tsarin mu na 'filtration na kewayawa + maida hankali' yana ba da damar sake amfani da mai tsabta sau 8 ~ 12. Reagents gwajin tattarawa ya kai ƙasa da $0.01 a kowace amfani, kuma sake cika maganin haja yana kiyaye ikon tsaftacewa - rage farashin tsabtace PCB-ton zuwa 60% na kaushi na gargajiya.

Q5: Shin ya dace da ka'idodin muhalli don ci gaba na lantarki?

A5: iya! Dabarar ba ta da halogen, mara nauyi mara ƙarfe, da ƙarancin-VOC (<50g/L), yana bin ƙa'idodin abubuwan RoHS 2.0 da REACH 211. Yana da cikakken jituwa tare da buƙatun muhalli na semiconductor, mota, da masana'antar lantarki.

Kira na Ƙarshe zuwa Aiki

PCBA fararen spots ba dole ba ne ya zama abin mafarki mafarki. Tare da madaidaicin ganewar rago, ƙayyadaddun hanyoyin tsabtace wurin, da dabarun kariya na dogon lokaci, zaku iya juyar da wannan ɓoyayyen haɗarin zuwa gasa mai fa'ida.

Shin kuna shirye don kawar da fararen fata da haɓaka yawan amfanin ku da kashi 11%? Yi iƙirarin samfurin tsabtace ku kyauta a yau — ya haɗa da goyan bayan fasaha biyu (sauran gwaji da haɓaka aiki) da tsarin tsaftacewa na musamman a cikin sa'o'i 72.

Shin kun ci karo da farar fata na PCBA a cikin ingantaccen abin dogaro ko al'amuran samar da jama'a? Raba kalubalenku ta hanyar Tel/WhatsApp / WeChat: +8618123969340, Imel , ko tuntube mu ta hanyar gidan yanar gizon mu, kuma ƙungiyarmu za ta ba da shawarwarin da aka keɓance don magance takamaiman batutuwan ku!