• I. PCB Control Specification

• 1. Kutsegula kwa PCB ndi kusungirako(1) bolodi ya PCB yosindikizidwa ndi yosatsegulidwa ikhoza kugwiritsidwa ntchito mwachindunji pa intaneti mkati mwa miyezi iwiri kuchokera tsiku lopanga (2) Tsiku lopanga PCB board liri mkati mwa miyezi iwiri, ndipo tsiku lotsegula liyenera kulembedwa pambuyo pomasula.(3) PCB board kupanga tsiku ndi mkati 2 miyezi, pambuyo unpacking, ayenera Intaneti ndi ntchito mkati 5 masiku
  2. PCB Postcure
• (1) Ngati PCB yasindikizidwa ndikumasulidwa kwa masiku opitilira 5 mkati mwa miyezi 2 kuchokera tsiku lopanga, chonde postcure pa 120 ± 5 ° C kwa ola la 1.(2) Ngati PCB ili ndi miyezi yopitilira 2 kuchokera tsiku lopanga, chonde sungani pa 120 ± 5 ° C kwa ola limodzi musanalowe pa intaneti.
  (3) Ngati PCB ili miyezi 2 mpaka 6 yadutsa tsiku lopanga, chonde postcure pa 120 ± 5 ° C kwa maola 2 musanalowe pa intaneti.
  (4) Ngati PCB ili miyezi 6 mpaka chaka cha 1 chadutsa tsiku lopanga, chonde tumizani pa 120 ± 5 ° C kwa maola 4 musanalowe pa intaneti.
  (5) PCB yophika iyenera kugwiritsidwa ntchito mkati mwa masiku 5 (kuyikidwa mu IR REFLOW), ndipo PCB iyenera kutumizidwa kwa ola lina isanayambe kugwiritsidwa ntchito pa intaneti.
  (6) Ngati PCB yadutsa chaka chimodzi kuchokera tsiku lopangidwa, chonde isungireni pa 120 ±5°C kwa maola 4 musanalowe pa intaneti, ndiyeno mutumize ku fakitale ya PCB kuti mudzazenso malata musanalowe pa intaneti.3. PCB postcure njira(1) Ma PCB akuluakulu (16 PORTs ndi pamwamba, kuphatikizapo 16 PORTs) amayikidwa mozungulira, mulu wa zidutswa za 30, tsegulani uvuni mkati mwa mphindi 10 mutatha kuphika, tulutsani PCB, ndikuziziritsa mozungulira (chofunikira). kukanikiza anti-plate bay fixture)

  (2) Ma PCB ang'onoang'ono ndi apakatikati (kuphatikiza 8PORTs pansipa 8PORT) amayikidwa mozungulira. Chiwerengero chachikulu cha stack ndi zidutswa 40. Chiwerengero cha mtundu woyima chilibe malire. Tsegulani uvuni ndikutulutsa PCB mkati mwa mphindi 10 pambuyo pomaliza kumaliza. Banwan fixture)

II. Kusungidwa ndi kusungitsa ma PCB m'madera osiyanasiyana
Nthawi yeniyeni yosungirako ndi kutentha kwa postcure kwa PCB sikungokhudzana ndi mphamvu yopangira ndi kupanga mapangidwe a wopanga PCB, komanso kukhala ndi ubale wabwino ndi dera.

PCB yopangidwa ndi ndondomeko ya OSP ndi ndondomeko yomiza golide yoyera nthawi zambiri imakhala ndi moyo wa alumali wa miyezi 6 mutatha kulongedza, ndipo nthawi zambiri sivomerezedwa kuti iphike njira ya OSP.

Kusunga ndi kuphika nthawi ya PCB ili ndi zambiri zokhudzana ndi dera. Kum'mwera, chinyezi chimakhala cholemera kwambiri, makamaka ku Guangdong ndi Guangxi. M’mwezi wa March ndi April chaka chilichonse, padzakhala nyengo ya “kubwerera kum’mwera,” yomwe imakhala yamitambo komanso yamvula tsiku lililonse. Mopitiriza, kunali chinyezi kwambiri panthawiyi. PCB poyera mpweya ayenera kugwiritsidwa ntchito mkati maola 24, apo ayi n'zosavuta oxidize. Mukatsegula mwachizolowezi, ndi bwino kugwiritsa ntchito maola 8. Kwa ma PCB ena omwe amafunika kuphikidwa, nthawi yophika idzakhala yayitali. Kumadera akumpoto, nyengo imakhala yowuma, nthawi yosungira PCB idzakhala yayitali, ndipo nthawi yophika ikhoza kukhala yayifupi. Kutentha kophika nthawi zambiri kumakhala 120 ± 5 ℃, ndipo nthawi yophika imatsimikiziridwa malinga ndi momwe zilili.