Gudiga wareegga daabacan (PCB) waxaa loo qaybin karaa PCB adag iyo PCB dabacsan, kii hore waxaa loo qaybin karaa saddex nooc: PCB hal dhinac ah, PCB laba dhinac leh iyo PCB-lakabyo badan. According to the quality grade, PCB can be divided into three quality grades: 1, 2 and 3, of which 3 is the highest requirement. Kala duwanaanshaha heerarka tayada PCB waxay keenaan kakanaanta iyo kala duwanaanshaha hababka baaritaanka iyo kormeerka.

Illaa iyo hadda, PCBS-ga oo laba-dhinac leh iyo lakabyo badan leh ayaa ku mashquulsanaa codsiyo aad u tiro badan oo ku jira elektiroonigga, iyadoo PCBS-da dabacsan mararka qaarkood la isticmaalo. Sidaa darteed, warqaddani waxay diiradda saari doontaa kormeerka tayada PCB-ga laba-geesle ah oo adag. Ka -soo -saaridda PCB ka dib, kormeer waa in la sameeyaa si loo go’aamiyo in tayada ay buuxisay shuruudaha naqshadda. It can be said that quality inspection is an important guarantee to ensure the quality of products and the smooth implementation of subsequent procedures.

Heerka kormeerka

Heerarka kormeerka PCB inta badan waxaa ka mid ah dhinacyada soo socda:

A. Heerarka dal walba dejiyay;

B. Heerarka ciidan ee dal kasta;

C. Heerarka warshadaha, sida SJ/T10309;

D. Tilmaamaha kormeerka PCB oo ay soo diyaariyeen alaab -qeybiyaha qalabka;

E. Shuruudaha farsamo ee lagu calaamadeeyay sawirka naqshadeynta PCB.

PCBS -yada loo aqoonsaday inay muhiim u yihiin qalabka, astaamahan iyo tilmaamayaasha astaamaha muhiimka ah waa in la baaro min ilaa cirib marka lagu daro kormeer joogto ah.

Alaabta kormeerka

Iyadoo aan loo eegin nooca PCB, waa inay maraan hababka iyo barnaamijyada kormeerka tayada ee la midka ah. According to the inspection method, the quality inspection items usually include appearance inspection, general electrical performance inspection, general technical performance inspection and metal coating inspection.

• Kormeerka muuqaalka

Kormeerka muuqaalku waa sahlan yahay iyadoo la kaashanayo taliye, caliper vernier, ama muraayadda weyneynta. Waxyaabaha la hubiyay waxaa ka mid ah:

A. Dhumucdiis, xajmiga dusha iyo warpage ee saxanka.

B. Qiyaasta muuqaalka iyo isu imaatinka, gaar ahaan cabbiraadaha isu imaatinka korontada iyo biraha hagaha.

C. Hufnaanta iyo hufnaanta hannaanka tabinta, iyo haddii ay jiraan buundooyin gaagaaban oo wareeg ah, wareegyo furan, bur -bur ama daloollo.

D. Tayada dushiisa, haddii ay jiraan boholo, xoqan ama godadyo ku yaal fiilooyin daabacan ama suuf.

E. Goobta godadka suufka iyo godadka kale. Hubi in godadka daloolku maqan yihiin ama si khaldan loo qoday, in dhexroorka dalooladu ay buuxinayaan shuruudaha naqshadeynta iyo haddii ay jiraan burooyin iyo duleella.

F. Tayada iyo adkaynta dahaarka suufka, qallafsanaanta, dhalaalka iyo cilladaha cilladaha kor u kacay.

G. Tayada dahaarka. Dheecaanka korontadu waa mid isku mid ah, adag, booskuna waa sax, qulqulku waa labis, midabkiisu wuxuu waafaqsan yahay shuruudaha la xiriira.

H. Tayada astaamaha, sida haddii ay yihiin kuwo adag, cad oo nadiif ah, oo aan lahayn xoqin, daloolin ama jebin.

• Kormeerka waxqabadka korontada ee joogtada ah

Waxaa jira laba nooc oo baaritaanno ah oo ku hoos jira jeeggan:

A. Imtixaanka waxqabadka iskuxirka. During this test, a multimeter is usually used to check the connectivity of the conductive pattern, with emphasis on the metallized perforations of double-sided PCBS and the connectivity of multi-layer PCBS. Tijaabadan, soo -saaraha PCB wuxuu bixin doonaa kormeer joogto ah PCB kasta oo la sii diyaariyey ka hor inta uusan ka bixin bakhaarka si loo hubiyo in shaqooyinkiisa aasaasiga ah la buuxiyey.

B. Imtixaanka waxqabadka dahaarka. Tijaabadan waxaa loogu talagalay in lagu hubiyo iska caabbinta dahaarka ee isla diyaaradda ama inta u dhexeysa diyaaradaha kala duwan si loo hubiyo waxqabadka dahaarka ee PCB.

• Kormeer guud oo farsamo

Kormeerka farsamo ee guud wuxuu daboolayaa adkaysiga iyo kormeerka dhegista daboolka. Wixii hore, hubi qoyaanka qoyan ee alxanka ee qaabka tabinta. Tan dambe, kormeerka waxaa lagu samayn karaa talooyin aqoon leh oo marka hore lagu dhajiyo dusha dahaadhka si loo baaro kadibna si dhakhso ah ayaa looga saari karaa xitaa marka la cadaadiyo. Marka xigta, waa in la fiiriyaa diyaaradda dahaadhka si loo hubiyo in diirintu dhacdo. Intaa waxaa dheer, qaar ka mid ah hababka kormeerka ayaa lagu xulan karaa iyadoo la eegayo xaaladda dhabta ah, sida xoogga dayrta ee bireedka naxaasta iyo biraha ka samaysnaanta iyada oo loo marayo xoogga gilgilka.

• Qalabaynta bilayska iyada oo loo marayo kormeer

Tayada biraha ka sameysan dalooladu aad bay muhiim ugu tahay PCB-ga laba-geesle ah iyo PCB-lakabka badan. Guuldarrooyin badan oo modules elektiroonig ah iyo xitaa qalabka oo dhan waxaa sabab u ah tayada godadka biraha leh. Sidaa darteed, waxaa lagama maarmaan ah in fiiro gaar ah loo yeesho kormeerka biraha ka sameysan godadka. A. Diyaaradda birta ah ee darbiga daloolku waa inay ahaataa mid dhammaystiran, siman oo ka madax bannaan godadka ama qanjidhada yaryar iyadoo la hubinayo bilayska oo daboolaya dhinacyada soo socda.

B. Guryaha korontada waa in la hubiyaa iyada oo la raacayo wareegga gaaban iyo kan furan ee suufka oo birta lagu dahaadhay dahaarka daloolka, iyo iska caabbinta u dhexeysa daloolka daloolka iyo rasaasta.

C. Baaritaanka deegaanka ka dib, heerka isbeddelka iska-caabbinta ee daloolka daloolka waa inuusan dhaafin 5% ilaa 10%.

D. Awoodda makaanikada waxaa loola jeedaa xoogga isku xidhka u dhexeeya daloolka birta ah iyo suufka.

E. Tijaabooyinka falanqaynta birta waxay hubiyaan tayada dahaarka, dhumucda dahaarka iyo isku midnimada, iyo xoogga dhejinta ee u dhexeeya dahaarka iyo bireedka naxaasta.

Qalabaynta birimayntu inta badan waa isku -darka kormeerka muuqaalka iyo kormeerka farsamada. Kormeerka muuqaalku wuxuu ku lugleeyahay in PCB-ga loo muujiyo iftiin iyo in la arko haddii darbiga daloolka leh ee aan daahsanayn uu si siman u muujiyo iftiin. Si kastaba ha ahaatee, gidaarrada ay ku jiraan qanjirada ama meelaha bannaan ma noqon doonaan kuwo aad u dhalaalaya. Soosaarka mugga, waa in la adeegsadaa aaladda kormeerka ee khadka (tusaale, tijaabiye cirbad duulaya).

Sababtoo ah qaab-dhismeedka adag ee PCBS-yada lakabyada badan leh, way adag tahay in si dhaqso ah loo helo ciladaha marka dhibaatooyinka la helo inta lagu guda jiro imtixaannada isku-xidhka cutubka dambe. Sidaas darteed, kormeerka tayada iyo isku halaynta waa inay ahaato mid aad u adag. Marka lagu daro waxyaabaha korjoogteynta joogtada ah ee kor ku xusan, waxyaabaha kale ee kormeerka ayaa sidoo kale ka mid ah xuduudaha soo socda: iska caabin kaariye, ka -soo -kabashada godka iska -caabbinta, wareegga gaaban ee gudaha iyo wareegga furan, iska -caabbinta dahaarka ee u dhexeeya khadadka, xoogga dhejinta dahaarka, dhejinta, iska caabbinta saameynta kuleylka, farsamada saamaynta saameynta saamaynta, xoogga hadda jira, iwm. Tilmaame kasta waa in la helaa iyada oo la adeegsanayo qalab iyo habab khaas ah.