Compound - iyakhusela oluthembekileyo izixhobo-bume ezinzima

Electrical Engineering, sisoloko sidibana elithi "compound". Yintoni na? Compound - yikhompawundi zokwambathisa ukuba ngexesha lokusetyenziswa na into engamanzi, waza wabaphilisa ayikho izinyibilikisi yayo kuqamba. Umchiza angalahlekelwa iipropati yayo uluhlu lobushushu ukusuka -50 ukuya +200 degrees Celsius, iyamelana radiation ukuba ukumitha, iindawo eyothi, izahlulo irediyo, ukhuseleko wombane iibhodi wesekethe eshicilelweyo kunye namacandelo zabo kwiimpembelelo bangaphandle (mechanical, thermal, acid, ukungcangcazela), ingakumbi kwiindawo ezinobutshaba. Ngapha koko, iimeko apho kufuneka ukuba zisebenze izixhobo ze-elektroniki kunye zombane kunye kwezixhobo bakude kwilabhoretri. Le kubushushu obuphantsi eFar North, nokufuma eliphezulu sezulu, kwaye bume engentle isithuba, njalo-njalo. D. Zonke iinjineli loyilo ngasentla onyanzelisa ukukhusela ukusetyenziswa belingana Ipeyinti ukufuma mathumbu edityaniswe nezinto kumacandelo potting kunye encapsulation kunye nezixhobo. Kaninzi zisetyenziselwa le njongo candelo-ezimbini imixube.

Xa iimpawu khompawundi yahlulwe:

- ukumitha;

- umbane;

- ukulahlwa;

- Elastic;

- irabha plasticized;

- a elisezantsi plasticizer ubunzima eziphilayo.

Ukumithisa compound - yikhompawundi osetyenziswa ukumitha of engathi yeemowutha kunye noomatshini.

Zokwambathisa ezikhoyo, ke, yahlulwe yaba:

- thermoset (a bazithambise emva ephilisa). Ezi ziquka epoxy, ipholiyesta kunye nezinye nentlaka;

- thermoplastic (inceba xa ukufudumeza) - bitumens dielectrics angwevu, anencindi, iipholima thermoplastic (istro, polyisobutylene).

Ukugcwalisa compound - sisincoko zokugcwalisa nemingxuma iibhokisi USB, kwakunye uphawu koomatshini zombane kunye nezixhobo.

Zokwambathisa umxube eyenziwe esters methacrylic, zisetyenziswa njengoko zombini ukumitha eziwisela. iikhompawundi ezifana emva ephilisa kubushushu ka 70-100 degrees Celsius (kunye hardener ezizodwa, le Ungeno ithotywe degrees 20), ukuba thermosetting kwaye ingasetyenziswa amaqondo ukusuka degrees -55 ukuya +105. Zisetyenziswa ukuba ukumitha lweentlobo ezahlukeneyo izixhobo ojikelezayo (kunye coil iinjini emajikojiko kunye al.) Yiyiphi unika ukhuseleko phumelela electrocution.

compound Potting esekelwe itha kwinqanaba yokuxhathisa ubushushu (105 ° C) bobabo iklasi "A". It has ukungawi bubushushu epoxy kwakunye abicah nemixube aphezulu.

Elastic imixube irabha plasticized baye bafumana isicelo esithile. Namhlanje compound ethandwa kakhulu lweefomu. Ngenxa enokuba kubhaliwe wenza ngumngundo abicah bhetyebhetye esimo ezahlukeneyo. Iqondo lobushushu ulawulo umchiza ifikelela umda + 200 ° C, itshiswa kwama-250 ° C hayi luyacetyiswa kuba Polymer itshabalele uqhakamshelwano.

Okwangoku uvelisa amabakala ezahlukeneyo iikhompawundi, nganye ethe wafumana kwawo kwaye anazo iimpawu ezithile kuwo.

Eyona ethandwayo waba epoxy compound - a Polymer kunye shrinkage ephantsi, iimpawu Heating ezibalaseleyo adhesion eliphezulu. Oku uyakwazi ukusebenza kweemeko deformation ngokusisigxina. emahlamvini epoxy ezisetyenziswa kakhulu izixhobo ezahlukeneyo, ukufakelwa, izakhiwo. Ezi imixube ziyahambelana namanye oligomers nokukhawulezisa yokuqaqadeka yabo ukuxubana kusitsha. Le ethile ye epoxy intlaka yi lobushushu yokusebenza ephantsi, nto leyo eyenza kube nzima ukuba silisebenzise njengobuchule asebenzayo ngaphakathi kwemiqathango kunokuba ngqwabalala.

Ukushwankathela, sinokuthi ukusetyenziswa iikhompawundi kwandisa ukuthembeka zokusebenza yaye ubonakalisa ubomi nkonzo bezixhobo zombane kunye nezixhobo zombane, siqinisekisa uphawu lwabo kunye nokhuseleko ngokuchasene ukungcangcazela, inceda ukukhusela abathengi yangoku yombane.