A preface.

Enweghị ọla kọpa n’ime oghere bụ nsogbu ọrụ nke PCB. Site na mmepe nke sayensị na teknụzụ, achọrọ PCB nkenke (akụkụ akụkụ) ka ọ dị elu ma dị elu, nke na -abụghị naanị na -ewetara ndị na -emepụta PCB nsogbu (mgbagha dị n’etiti ọnụ ahịa na ịdị mma), kamakwa na -ahapụ ndị ahịa dị n’okpuru ala nnukwu nsogbu zoro ezo! Mee nyocha dị mfe n’oge a n’okpuru, nwee olile anya inwe nghọta na enyemaka nye onye ọrụ ibe gị!

2. Nyocha eserese azụ

Simple analysis of PCB hole copper and improvement methods

Classification and characteristics of copper – free holes

1. Enweghị ọla kọpa n’ime oghere PTH: akwa eletrik nke efere ọla kọpa dị elu bụ otu na nke nkịtị. A na -ekesa akwa eletriki nke efere n’ime oghere ahụ site na orifice ruo mgbaji ọkpụkpụ, mkpuchi eletrik kpuchie mgbaji ahụ mgbe eserese ahụ gasịrị.

Simple analysis of PCB hole copper and improvement methods

2. Efere eletriki ọla kọpa nwere oghere na -enweghị ọla kọpa:

(1) Mpekere ọla kọpa dị gịrịgịrị na -enweghị ọla kọpa – elu ọla kọpa na oghere ọla kọpa ọla kọpa dị ezigbo mkpa, mgbe eserese elektrọnik nke eserese nke oghere etching n’etiti ọtụtụ efere ọla kọchara mebiri, mgbe ọkụ eletrik eserese ahụ. na -agbachi;

(2) enweghị ọla kọpa n’ime oghere dị warara nke efere ọla kọpa n’ime oghere – akwa eletrik nke efere ọla kọpa bụ otu na nke nkịtị, akwa eletrik nke efere n’ime oghere na -ebelata site na oghere ruo mgbaji ọkpụkpụ, na mgbaji ọkpụkpụ na -adịkarị n’etiti oghere, a na -ahapụ akwa ọla kọpa na mgbaji ọkpụkpụ

Akụkụ aka nri nwere ezigbo ịdị n’otu na ntụnyere, yana mkpuchi eserese kpuchie mkpuchi ahụ.

Simple analysis of PCB hole copper and improvement methods

3. Dozie oghere mebiri emebi:

(1) ọla kọpa na -arụzi oghere ọjọọ – okpokoro okpokoro okpokoro okpokoro eletrik bụ otu na nke nkịtị, oghere elektrọnị efere okpokoro enweghị usoro tapering, mgbaji ọkpụkpụ adịghị agbanwe agbanwe, nwere ike ịpụta na oghere oghere nwekwara ike ịpụta n’etiti oghere ahụ , na mgbidi oghere na -apụtakarị convex siri ike na ihe ọjọọ ndị ọzọ, eserese elektrọnik mgbe mkpuchi ọkụ eletrik kpuchiri mgbaji ahụ.

(2) mmezi corrosion nke oghere ahụ, okpokoro okpokoro okpokoro okpokoro eletrik bụ otu na nke nkịtị, oghere ọla kọpa efere eletriki enweghị usoro ịme ọpịpị, mgbawa ahụ adịghị agbanwe agbanwe, nwere ike ịpụta na orifice nwekwara ike ịpụta n’etiti oghere ahụ , na mgbidi oghere na -apụtakarị convex siri ike na ihe ọjọọ ndị ọzọ, akwa eletriki eserese adịghị akwa akwa oyi akwa.

Simple analysis of PCB hole copper and improvement methods

4. Enweghị oghere plọg ọla kọpa: mgbe etinyere eserese, enwere ihe doro anya rapaara n’ime oghere ahụ, ọtụtụ mgbidi oghere na -emebi, akwa eletriki eserese na mgbaji ọkpụkpụ anaghị ekpuchi ọkụ eletrik.

Simple analysis of PCB hole copper and improvement methods

5. Gụpụta oghere eletriki na -enweghị ọla kọpa: akwa eletriki ahụ dị n’ọkpụkpụ ahụ adịghị etinye ya na akwa eletriki efere – ọnụ ọgụgụ eletriki eletrik na ọkpụrụkpụ nke efere eletriki dị n’otu, agbajiri agbaji; Mpekere eletriki eserese na -egosi omume na -ada ụda ruo mgbe ọ ga -apụ n’anya, akwa eletriki efere na -aga n’ihu na -agbatị ogologo karịa elektrọniki eserese wee kwụpụ.

Simple analysis of PCB hole copper and improvement methods

Simple analysis of PCB hole copper and improvement methods

Iv. Ntụziaka nkwalite:

1. Ọrụ (mbadamba elu na nke ala, ntọala oke, mmezi, njikwa adịghị mma);

2. Akụrụngwa (crane, feeder, pen na -ekpo ọkụ, ịma jijiji, mgbapụta ikuku, okirikiri nzacha);

3. Akụrụngwa (efere, ọgwụ);

4. Ụzọ (parameters, usoro, usoro na njikwa mma);

5. Gburugburu ebe obibi (mgbanwe kpatara unyi, unyi na ihe dị iche iche kpatara).

6. Mmeso (nnwale ọgwụ mmiri mmiri, nlele anya ọla kọpa).