Kitapo boribory vita pirinty (PCB) azo zaraina ho PCB henjana sy PCB malefaka, ny teo aloha azo zaraina ho karazany telo: PCB tokana, PCB misy lafiny roa ary PCB maro sosona. According to the quality grade, PCB can be divided into three quality grades: 1, 2 and 3, of which 3 is the highest requirement. Ny fahasamihafana eo amin’ny haavon’ny kalitaon’ny PCB dia mitarika fahasarotana sy fahasamihafana amin’ny fomba fitsapana sy fizahana.

Hatramin’izao, PCBS henjana roa sosona sy sosona marobe dia nibodo karazana fampiharana marobe amin’ny alàlan’ny elektronika, miaraka amin’ny PCBS malefaka indraindray ampiasaina amin’ny tranga sasany. Noho izany, ity taratasy ity dia hifantoka amin’ny fanaraha-maso kalitao PCB misy lafiny roa sy sosona maro sosona. After PCB manufacturing, inspection must be carried out to determine whether the quality meets the design requirements. It can be said that quality inspection is an important guarantee to ensure the quality of products and the smooth implementation of subsequent procedures.

Fenitra fanaraha-maso

Ireo fenitra fanaraha-maso PCB dia ahitana ireto lafiny manaraka ireto:

A. Fitsipika napetraky ny firenena tsirairay;

B. fenitra miaramila ho an’ny firenena tsirairay;

C. fenitra indostrialy, toy ny SJ / T10309;

D. Torolàlana momba ny fanaraha-maso D. PCB namboarin’ny mpamatsy fitaovana;

E. Fepetra ara-teknika voamarika amin’ny sary famolavolana PCB.

Ho an’ny PCBS izay fantatra fa manakiana ny fitaovana, ireo masontsivana sy mari-pahaizana mampiavaka ireo dia tsy maintsy dinihina hatramin’ny lohany ka hatrany amin’ny ankilany ankoatry ny fizahana matetika.

Entana fanaraha-maso

Na inona na inona karazana PCB dia tsy maintsy mandalo fomba sy programa fanaraha-maso kalitao mitovy amin’izany izy ireo. 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.

• Fanaraha-maso ny endrika ivelany

Mora ny fanaraha-maso ny maso amin’ny alàlan’ny mpanampy, kalifera vernier, na vera fanamafisana. Ireo entana voamarina dia ahitana:

A. Hatevina, fahamendrehana ambonin’ny tany ary ady amin’ny takelaka.

B. refy fisehoana sy fihaonam-be, indrindra ny refin’ny fiangonana mifanaraka amin’ny mpampifandray elektrika sy ny lalamby mpitari-dalana.

C. Integrity and clarity of the conductive pattern, and whether there are bridge short circuits, open circuits, burrs or gaps.

D. Kalitaon’ny haavo, na misy lavaka, rakotra na pinhole amin’ny tariby na pads vita pirinty.

E. Toerana misy lavaka pad sy lavaka hafa. Hamarino raha diso ny lavaka amin’ny alàlan’ny lavadavaka na diso, na ny savaivon’ny lavaka amin’ny alàlan’ny lavaka dia mahafeno ny fepetra takiana amin’ny famolavolana ary raha misy nodule sy banga.

F. Ny kalitao sy ny fahamendrehan’ny firakotra pad, ny fahamendrehana, ny famirapiratana ary ny tsy fahampian’ny hadisoana natsangana.

G. Kalitaon’ny firakotra. Electroplating flux is uniform, firm, position is correct, flux is uniform, its color is in line with relevant requirements.

H. Ny kalitaon’ny toetra amam-panahy, toy ny hoe mafy orina, madio sy madio, tsy misy rangotra, totohondry na tapaka.

• Fanaraha-maso ny fahombiazan’ny herinaratra mahazatra

There are two types of tests under this type of check:

A. Fitsapana fampisehoana fifandraisana. 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. Ho an’ity fitsapana ity, ny mpanamboatra PCB dia hanome fizahana mahazatra ny PCB efa vita mialoha alohan’ny handaozany ny trano fitehirizan-trano mba hahazoana antoka fa tanteraka ny asany fototra.

B. Fitsapana fampisehoana insulated. Ity fitsapana ity dia natao hanamarinana ny fanoherana ny insulation amin’ny fiaramanidina iray na eo anelanelan’ny fiaramanidina samihafa mba hiantohana ny fahombiazan’ny insulated an’ny PCB.

• Fanaraha-maso ara-teknika ankapobeny

Ny fisafoana ara-teknika ankapobeny dia manarona ny fitsapana ny solderability sy ny firakotra. Ho an’ireo teo aloha dia zahao ny fahaizan’ny solder mankamin’ny lamina fitondran-tena. Ho an’ity farany, ny fitsirihana dia azo tanterahina amin’ny alàlan’ny toro-hevitra efa voafatotra izay niraikitra voalohany tamin’ny vatan’ny plating mba hozahana ary afaka esorina vetivety na dia aorian’ny fanindriana aza. Manaraka izany, ny fiaramanidina plating dia tokony hojerena mba hahazoana antoka fa mitranga ny peeling. Ho fanampin’izany, ny fomba fanaraha-maso sasany dia azo fidina arakaraka ny tena zava-misy, toy ny tanjaky ny vongan-tanimanga ary ny fanamafisana amin’ny alàlan’ny tanjaka.

• Metallisation amin’ny alàlan’ny fanaraha-maso

Ny kalitaon’ny metaly amin’ny alàlan’ny lavaka dia tena zava-dehibe amin’ny PCB misy lafiny roa sy PCB maro sosona. Maro ny tsy fahombiazan’ny modely elektronika ary na dia ny fitaovana iray manontolo aza dia vokatry ny kalitaon’ny lavaka metaly. Noho izany dia ilaina ny mandinika bebe kokoa ny fizahana ny metallized amin’ny alàlan’ny lavaka. A. Ny fiaramanidina vy amin’ny rindrin’ny lavaka dia ho feno, malama ary tsy misy lavaka na nodulo kely amin’ny alàlan’ny fanamarinana ny metaly izay mandrakotra ireto lafiny manaraka ireto.

B. Ny fananana elektrika dia tokony hojerena arakaraka ny boribory fohy sy misokatra amin’ny pad ary metaly amin’ny alàlan’ny fametahana lavaka, ary ny fanoherana eo anelanelan’ny lavaka sy ny firaka.

C. Aorian’ny fitsapana ny tontolo iainana, ny tahan’ny fiovan’ny fanoherana dia tsy tokony hihoatra ny 5% hatramin’ny 10%.

D. Mechanical strength refers to the bonding strength between the metallized hole and pad.

E. Ny fitsapana ny fanadihadiana metallographic dia manamarina ny kalitaon’ny firakotra, ny hatevin’ny lamba ary ny fitoviana, ary ny tanjaky ny adhesion eo amin’ny fonosana sy ny varahina varahina.

Ny metallisation amin’ny alàlan’ny fanaraha-maso dia matetika fitambarana fanaraha-maso maso sy fizahana mekanika. Ny fizahana sary dia mitaky fampisehoana ny PCB amin’ny hazavana ary ny fahitana raha toa ka mitaratra tsara ny hazavana amin’ny rindrina feno lavaka sy malama. Na izany aza, ny rindrina misy nodule na voids dia tsy ho mazava loatra. Ho an’ny famokarana volavola, dia tokony hampiasaina ny fitaovana fanaraha-maso an-tsipika (oh: tester fanjaitra manidina).

Noho ny firafitry ny PCBS misy sosona maro dia sarotra ny mahita haingana ny lesoka raha vao misy olana hita mandritra ny fitsapana fivoriambe modely manaraka. Vokatr’izany, ny fizahana ny kalitaony sy ny fahamendrehany dia tsy maintsy henjana tokoa. Ho fanampin’ireo entana fanaraha-maso mahazatra etsy ambony, ny zavatra fanaraha-maso hafa dia misy ireto masontsivana manaraka ireto koa: fanoherana ny fitarihana, fametahana metaly amin’ny alàlan’ny fanoherana ny lavaka, lalan-kely anatiny ary fisokafana misokatra, fanoherana eo anelanelan’ny andalana, tanjaka ny adhesion, ny adhesion, ny fiatrehana ny fiantraikany amin’ny hafanana, ny mekanika ny herin’ny fiantraikany, ny tanjaka ankehitriny, sns. Ny tondro tsirairay dia tsy maintsy alaina amin’ny alàlan’ny fampiasana fitaovana sy fomba manokana.