Chifukwa chiyani ndikofunikira kusunga PCB yanu yaukhondo?

Akamathetsa mabwalo osagwira ntchito kapena osachita bwino, mainjiniya amatha kugwiritsa ntchito zoyeserera kapena zida zina zowunikira kuti aganizire dera lomwe limazungulira.Ngati njirazi sizithetsa vutoli, ngakhale akatswiri odziwa bwino ntchito zamainjiniya angakhale okhumudwa, okhumudwa, kapena osokonezeka.Nanenso ndakumanapo ndi ululu umenewu.Kuti mupewe kugunda nsonga zofananira, ndiroleni ndikudziwitseni nsonga yosavuta koma yofunika kwambiri: ikhale yaukhondo!

Ndikutanthauza chiyani pamenepa?Izi zati, zida zina zomwe zimagwiritsidwa ntchito pa msonkhano wa PCB kapena kusinthidwa zingayambitse mavuto aakulu a dera ngati PCB siisungidwa bwino.Chimodzi mwazovuta zomwe zimachitika kwambiri ndi izi ndi flux.

 

Chithunzi 1 chikuwonetsa PCB yokhala ndi zotsalira zochulukirapo.

Flux ndi mankhwala omwe amagwiritsidwa ntchito kuthandizira pakugulitsa zinthu ku PCB.Zachisoni komabe, ngati sizikuchotsedwa pambuyo pa soldering, flux imatha kusokoneza kukana kwa PCB, zomwe zimapangitsa kuwonongeka kwakukulu kwa kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe ka kayendetsedwe kake!

chithunzi 2

Chithunzi 2 ndi gawo loyesera lomwe ndimagwiritsa ntchito kuwonetsa zotsatira za kuipitsidwa kwa flux.Netiweki yabwinobwino ya mlatho wa Wheatstone yoyendetsedwa ndi voliyumu ya 2.5V imatsanzira sensor yotsekeka kwambiri.Zotulutsa zosiyana za mlatho VIN + - VIN- zitha kulumikizidwa ndi INA333 ndi phindu la 101V/V.M'dziko labwino, popeza mlatho uli wofanana, VIN + - VIN- = 0V.Koma kuipitsidwa kwa flux kumatha kupangitsa kuti magetsi a bridge sensor ayende pang'onopang'ono pakapita nthawi.

Mu mayesowa, nditamaliza msonkhano, ndidalembanso zosintha mu VIN- ndi VOUT kwa ola limodzi pambuyo poyeretsa mosiyanasiyana:

1.Osayera;

2.Kuyeretsa ndi dzanja ndi mpweya wouma;

3.Ultrasonic kuyeretsa, kuyanika mpweya, kuphika.

chithunzi 3

Monga tikuwonera mu Chithunzi 3, kuipitsidwa kwa flux kumakhudza kwambiri magwiridwe antchito a sensa ya mlatho.Popanda kuyeretsa kapena kuyeretsa pamanja, voliyumu ya sensa ya mlatho sinafikire voteji yomwe ikuyembekezeka pafupifupi VREF/2, ngakhale patatha ola limodzi lokhazikika.Kuphatikiza apo, matabwa ozungulira odetsedwa amawonetsanso phokoso lalikulu lakunja.Pambuyo kuyeretsa ndi kusamba akupanga ndi kuyanika kwathunthu, mlatho sensa voteji anali thanthwe olimba.

chithunzi 4

Kuyang'ana mphamvu yotulutsa INA333, timawona mosalekeza kuwonongeka kwa magwiridwe antchito chifukwa cha kuyeretsa kosayenera.

1.Mapulani odetsedwa amawonetsa zolakwika za DC, nthawi yayitali yokhazikika, komanso phokoso lakunja lakunja;

2.Manually kutsukidwa matabwa madera kusonyeza zachilendo otsika pafupipafupi phokoso.Pomaliza ndidapeza chomwe chidayambitsa - chinali chowongolera mpweya mkati mwa malo oyesera!

3.Monga momwe zimayembekezeredwa, matabwa otsukidwa bwino ndi owuma adachita bwino kwambiri, popanda kugwedezeka komwe kumachitika nthawi iliyonse yoyesedwa.

 

Mwachidule, kuyeretsa molakwika kungayambitse kuwonongeka kwakukulu, makamaka m'mabwalo olondola kwambiri a DC.Monga ndi ma PCB onse opangidwa ndi manja kapena osinthidwa, onetsetsani kuti mukugwiritsa ntchito kusamba kwa akupanga (kapena njira yofananira) poyeretsa komaliza.Kuphika PCB yosonkhanitsidwa ndi kutsukidwa pamtunda wokwera pang'ono kuti muchotse chinyezi chilichonse chotsalira pambuyo poyanika mpweya pogwiritsa ntchito compressor ya mpweya.Nthawi zambiri timaphika pa 70 ° C kwa mphindi 10.

Langizo losavuta "likhale loyera" liyenera kukuthandizani kuti muchepetse nthawi yochepetsera zovuta komanso nthawi yochulukirapo ndikupanga mabwalo abwino kwambiri, olondola kwambiri!

 

Mtengo wa magawo Xuange Electronicsyadzipereka kukhala mtsogoleri wotsogola padziko lonse lapansi wa zida za maginito, osapereka zinthu zokhazikika komanso ntchito zopangira makonda kuti makasitomala athe kupeza zotsatira zabwino.Zida zonse zomwe zimagwiritsidwa ntchito pazogulitsa zidadutsa UL / CEcertificationndipo adayesedwa ndikuyang'aniridwa mosamalitsa asanatumizidwe kuti atsimikizire kukhazikika komanso kutsimikizira makasitomala.Ndi bwenzi lodalirika lanthawi yayitali la opanga magetsi odziwika bwino!
Pamafunso azinthu, chonde onanitsamba mankhwala, nanunso mwalandiridwaLumikizanani nafekudzera m'mawu omwe ali pansipa, tidzakuyankhani pasanathe masiku 24.

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