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Fiberglass ayaa xoojiyay baalal caag ah

Fiberglass ayaa xoojiyay baalal caag ah

 Marka loo eego isticmaalka kala duwan, warshadaha waxaa guud ahaan loo yaqaan: FR-4 Epoxy Glass Cloth, guddiga dahaarka, epoxy board, epoxy resin board, brominated board Oxygen resin board, FR-4, guddiga fiber galaas, guddiga fiber galaas, FR-4 xoojinta looxa, looxa Xoojinta FPC, Gudigga Xoojinta looxa wareegyada dabacsan, FR-4 epoxy guddiga, guddiga dahaarka ololka, FR-4 looxa la saaray, loox epoxy, FR-4 looxa iftiinka, FR-4 guddiga fiber galaas, epoxy guddiga maro galaas , Laminate maro galaas epoxy, suunka qodida looxa wareegga.

Tilmaamaha farsamada ee ugu muhiimsan iyo codsiyada: waxqabadka dahaarka korantada xasilloon, fidsan wanaagsan, dusha siman, godad la'aan, dulqaadka dhumucda caadiga ah, oo ku habboon alaabada leh shuruudaha dahaarka elektiroonigga ah ee waxqabadka sare leh, sida guddiga xoojinta FPC, suufka qodista PCB, dhalada Fiber meson, kaarboon potentiometer filim daabacan boor fiber galaas, marsho pinion saxda ah (Shiidi wafer), saxan imtixaanka saxda ah, korantada (korontada) qalabka dahaaridda joogista spacer, suuf dahaarka, guddiga dahaarka transformer, dahaarka motor, marsho shiidi, elektarooniga ah guddiga insulation, iwm.

LFR-4 waa magaca koodka darajada walxaha ololka u adkeysaneysa, taas oo macnaheedu yahay in shayga resin-ku uu awoodo inuu is-dejiyo gubashada ka dib. Magac maaddi ah maaha, balse waa darajo maaddi ah. Sidaa darteed, wareegga guud ee hadda jira Waxaa jira noocyo badan oo ah qalabka darajada FR-4 ee loo isticmaalo guddiga, laakiin intooda badan waa walxo isku dhafan oo ka samaysan waxa loogu yeero afar-function (Tera-Function) epoxy resin iyo filler (Filler) iyo galaas fiber.

Shan faa'iidooyin ee habaynta guddiga epoxy

Sida aan wada ognahay, guddiga epoxy wuxuu leeyahay faa'iidooyinka dahaarka wanaagsan, caabbinta heerkulka sare iyo adkaanta wanaagsan. Laakiin waa maxay sifooyinka habka wax soo saarka iyo processing iyo farsamada processing ee loox epoxy?

 

(1) Qalabka farsamada ee wanaagsan. Waxay leedahay xasillooni wanaagsan oo hoos timaada culeysyo kala duwan oo dibadda ah (fiditaan, foorarsi, saameyn, isbeddel) jawiyo kala duwan (heerkulka, dhexdhexaadka, qoyaanka).

 

(2) La qabsi xoog leh. Xabagta Epoxy, qallafsanayaasha iyo wax ka beddelayaasha ayaa diyaar u ah dhammaan shuruudaha foomka, laga bilaabo mawjadaha hoose ilaa adkaha dhalaalaysa sare.

 

(3) Heerkulka daawaynta ballaaran. Heerkulkeeda kala duwan ayaa lagu daweyn karaa inta u dhaxaysa 0-180 darajo. Way ku habboon tahay dadka inay qabtaan shaqada guriga.

 

(4) Xoog dhimis hooseeya. Waxaa lagu fulin karaa iyadoo loo eegayo falcelinta isku darka tooska ah ama polymerization-ka furitaanka giraanta ee kooxaha epoxy ee molecule resin-ka. Ma jiro biyo ama walxo kale oo kacsan oo la sii daayo inta lagu jiro wax soo saarka. Hoos u dhaca inta lagu jiro daaweynta waa mid aad u hooseeya, caadi ahaan wax ka yar 2%.

 

(5) Ku dheggan xooggan. Maadaama unugyadu ay qani ku tahay polar hydroxyl iyo ether bonds, walaxda waxay leedahay adhesion wanaagsan. Cadaadiska gudaha ka dhex abuurma unugyadu aad buu u yar yahay, dabcan, ku dhegsigeedu aad buu u xoog badan yahay.

Ma adka in laga arko magaca guddiga fiber-glass-ka ah, qayb ka mid ah waa fiber-glaas, qayb ka mid ah fiber kiimikaad ama suufka suufka ah, kaas oo lagu sameeyay cadaadis sare iyo heerkul sare. Inta badan qaybaha looxa fiber galaasku waa fiber galaas, iyo agabyada kale waxay ku xisaabtamaan qayb yar. Sidaa darteed, guddiga fiberglass-ku wuxuu leeyahay sifooyin nuugista dhawaaqa, xuubka dhawaaqa, kuleylka kulaylka, ilaalinta deegaanka, ololka ololka iyo wixii la mid ah. Guud ahaan waxaa loo isticmaalaa baakadaha dabacsan ee lakabka saldhigga, ka dibna waxay ku duubtaa maro iyo maqaar dibadda si ay u qurxiyaan derbiga iyo saqafka quruxda badan.

 

Waa maxay shuruudaha heerkulka guddiga fiberglass ee habka habsocodka dhabta ah, sida heerkulka guddiga fiber galaas for reflow alxanka, iyo waa maxay koollada alxanka loo isticmaalo inta lagu guda jiro alxanka reflow?

 

Dabcan, jawiga shaqada ee gaarka ah iyo arrimaha kale ee aan la xakameyn karin waa in la tixgeliyo inta lagu jiro dib-u-qulqulka alxanka looxyada fiberglassyada. Waxaa jira saddex qodob oo muhiim ah in la xuso:

 

Marka hore, koollada kasta oo alxanka ah waxaa loo isticmaali karaa looxyada fiberglass caadiga ah, laakiin waa in la ogaadaa in koollada heerkulka hooseeya ee ka hooseeya 220 ° C loo isticmaalo looxyada PCB-ga cad si looga fogaado midabka PCB. Intaa waxaa dheer, fiiro gaar ah waa in sidoo kale la bixiyaa shuruudaha iska caabbinta heerkulka ee qaybaha gaarka ah ee elektiroonigga ah. Haddii macmiilku u baahan yahay isticmaalka koollada alxan-la'aanta ah, waa inay buuxisaa shuruudaha macmiilka;

 

Midda labaad: heerkulka preheating waa 150-220, meesha alxanka waa 255-270, iyo heerkulka hoose ee koollada koollada ayaa hoos u dhacaya iyadoo loo eegayo saamiga heerkulka koollada alxanka.

 

Seddexaad: Fiiro gaar ah u yeelo tayada barta tiinaha, hagaaji xawaaraha socodka iyo heerkulka aag kasta si aad u buuxiso heerka.

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Nicole

Nicole

nicole@tstarco.com
+ 86 136 4021 9908

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Akhri wax dheeraad ah "
Nicole
Waad ku mahadsan tahay nala soo xiriir! Waxaan kula soo xiriiri doonaa dhawaan.
Nicole

Waad ku mahadsan tahay nala soo xiriir! Waxaan kula soo xiriiri doonaa dhawaan.