Xarunta - waa ilaalinta lagu kalsoonaan karo oo ah qalab ka bay'ada adag

In injineernimada korontada, waxaan inta badan la kulmaan ereyga "xarunta". Waa maxay? Xarunta - waa xarunta ah qalabada in waqtiga la isticmaalo waxaa dareere ah, ka dibna la daaweyn ma aha in qase Halabuurka ay. Xarunta ma lumin hantida at kala duwan oo heer kulka ka -50 in +200 degrees Celsius ah, waa adkaysi u shucaaca for dahaadhida, qanjidhada shubtay, qaybo radio, ilaalinta korontada for loox wareeg daabacan iyo qaybaha ay kaga cabanayeen saamayn dibadda (makaanikada, kaamerada, kiimikada, gariirka), gaar ahaan deegaan colaadeed. Ka dib oo dhan, xaaladaha ka yar taas oo u leeyihiin in ay ku shaqeeyaan qalabka elektarooniga ah iyo korontada iyo apparatuses ka fog shaybaarka yihiin. Heerkulka Tani hooseeyo of North Fog, iyo huurka badan ee cimilada kulaylaha, iyo deegaanka colaadeed oo meel, iyo D. sidaas on. All oo ka mid ah injineerada design kor ku xusan waxaa lagu qasbo in ay ilaaliyaan isticmaalka on par leh blaastiigga celisa qoyaan darey qalab ah ee ka kooban iyo qalabka potting iyo encapsulation. Inta badan loo isticmaalo this ujeedada isku laba-qayb.

By guryaha xeryahooda kala qaybsan yihiin:

- dahaadhida;

- korontada,

- shubay;

- laastikada,

- caag plasticized;

- a Hoosaynta miisaanka ilmaha plasticizer kelli.

Impregnating xarunta - Xarunta a in loo isticmaalo dahaadhida of windings ee matoorrada iyo mashiinada.

Qalabada, markeeda, kala qaybsan yihiin:

- thermoset (ma jilciso ka dib daaweynta). Kuwaas waxaa ka mid epoxy, caag, Beeyada kale;

- thermoplastic (jilciso dul kululaynta) - bitumens dielectrics waxy, polymers thermoplastic (polystyrene, polyisobutylene).

Buuxinta xarunta - halabuurka ah buuxinta godadka sanduuqyada cable, iyo sidoo kale, waayo, dhagixiina ee mashiinada korontada iyo aaladaha.

Qalabada isku dar ka esters methacrylic dhigay, waxaa loo isticmaalaa sida labada dahaadhida oo loo shubay. xeryahooda noocan oo kale ah ka dib markii Asagoo arigtadaa ka heerkulka a of 70-100 degrees Celsius (la hardener gaar ah, marinka tani waxaa la yareeyo 20 degrees), waxaa thermosetting iyo waxaa loo isticmaali karaa marka heerkulku ka -55 in +105 degrees. Waxay waxaa loo isticmaalaa dahaadhida ee noocyada kala duwan ee qalabka qoqobada (iyo gariiradda matoorrada loogu fuuli jiray iyo al.) Waa kuwee siinayaa ilaalinta ku ool ka dhanka ah koronto.

xarunta Potting ku salaysan shinida on heerka caabiga kulaylka (105 ° C) waxaa iska leh class "A" ah. Waxay leedahay xeryahooda epoxy caabiga kulaylka iyo silicone ugu sareeya.

isku caag plasticized laastikada helay codsi gaar ah. Maanta waa xarunta aad loo jecel yahay, waayo, foomamka. Sababta oo ah waxa la sameeyo wasakhahaasi silicone dabacsan ee gaadmada ah oo kala duwan. Maamulkii heerkulka ee xarunta gaaro xadka ah in + 200 ° C, waa kuleelka ka badan 250 ° C laguma talinayo, sababtoo ah polymer waa la wada baabbi'iyey xirka.

Currently waxay soo saartaa fasalada kala duwan ee xeryahooda, kuwaasoo mid walba uu helay ayaa ay baaxadda iyo haysto guryaha caadiga ah waxaa ka mid ah.

Ugu caansan noqday xarunta epoxy - polymer la yaraanshaha hooseeyo, sifooyinka dielectric fiican iyo Amda sare. Waa in lagu shaqeeyo xaalado ee lahayo ku joogto ah awood. Beeyada Epoxy hubkaas ayaa loo isticmaalaa qalab kala duwan, goobaha, dhismayaasha. Kuwanu waa isku jaan qaada ee oligomers kale oo dardar ay Adkaan ku khalda la xeryahooda kale. khasaare ah ee cusbi epoxy waa heerkul ah hawlgalka yar yahay, taas oo ka dhigaysa wax aan macquul ahayn si ay u isticmaalaan farsamada ah oo ka shaqaysa in a xaaladaha halkii adag.

Koobaya, waxaan dhihi karaa in isticmaalka xeryahooda kordhisaa isku halaynta hawl iyo fidiyaa nolosha adeeg ee qalabka elektarooniga ah iyo qalabka korontada ah, ay hubisaa in ay quwad iyo ilaalinta gariirka, waxay ka caawisaa macaamiisha ka hadda korontada ilaaliyo.