Kedu ngwa eji eji akwa akwa akwa epoxy iko?

Ntụkwasị obi na ndụ ọrụ nke ọrụ ikuku na-adabere n’ogo dị ukwuu na arụmọrụ nke ihe mkpuchi. Ihe ndị bụ isi a chọrọ maka ịrụ ọrụ nke ihe mkpuchi na-agụnye ịrụ ọrụ eletrik, nkwụsị ọkụ na ihe eji arụ ọrụ. Edemede a Nwada na-ezo aka na mmeghe nkenke maka arụmọrụ eletriki nke ihe mkpuchi. Njirimara eletriki nke ihe mkpuchi gụnyere ike ndakpọ, mgbochi mkpuchi, ikike na ọnwụ dielectric. Kewaa voltaji ndakpọ site na ọkpụrụkpụ nke ihe mkpuchi na ebe mgbawa, gosipụtara na kilovolts / mm. Enwere ike kewaa nbibi nke ihe mkpuchi mkpuchi n’ụdị atọ: ndakpọ eletriki, ndakpọ ọkụ na ndakpọ mwepu. Ihe ndị chọrọ ịrụ ọrụ eletriki nke moto maka ihe mkpuchi bụ ihe kachasị mkpa maka nkwụsị ọkụ eletrik na nkwụsị mkpuchi.

Dabere n’ụdị moto ahụ, ihe ndị ọzọ chọrọ ịrụ ọrụ eletrik abụghị otu. Dịka ọmụmaatụ, mkpuchi nke moto voltaji dị elu chọrọ obere dielectric ọnwụ nke ihe mkpuchi na ezigbo nguzogide corona; na nkesa ọkụ eletrik n’etiti isi ígwè na onye nduzi ga-atụle. Ike ọkụ eletrik na-abawanye. Tangent ọnwụ na-abawanye. Mgbe voltaji na-abawanye na uru ụfọdụ, egosipụta n’ime ọkara ma ọ bụ nsọtụ nke electrode ga-abụ nke a tọhapụrụ, na tangent ọnwụ na-abawanye na mberede. A na-akpọ uru voltaji a nke mbụ voltaji efu. Na injinia, a na-ejikarị nha voltaji efu efu nke mbụ iji lelee oghere ikuku dị n’ime ihe mkpuchi iji chịkwaa ogo mkpuchi. Na mgbakwunye, ụfọdụ ihe mkpuchi kwesịrị ịtụle akụrụngwa eletrik dị ka nguzogide corona, nguzogide arc, na iguzogide akara ntapu.

Ọnwụ dielectric nke ihe mkpuchi ahụ. Ihe mkpuchi mkpuchi na-emepụta ike ike n’ihi ntanye ọkụ eletrik na polarization n’okpuru ọrụ nke ọkụ eletrik. N’ozuzu, a na-eji ike mfu ma ọ bụ tangent ọnwụ egosipụta oke ọnwụ dielectric. N’okpuru arụ ọrụ nke voltaji DC, chaja ngwa ngwa ugbu a, nnabata ugbu a na ntapu ugbu a ga-agafe. Mgbe etinyere voltaji AC, chajị ngwa ngwa ugbu a bụ ugbu a na-emeghachi omume (capacitive current); na ntapu nke ugbu a bụ na-adọ na voltaji na-arụ ọrụ ugbu a; nke ugbu a absorption nwere ma a reactive ugbu a akụrụngwa na-arụ ọrụ ugbu a. Isi ihe na-emetụta ọnwụ dielectric nke ihe mkpuchi mkpuchi. Ebe ọ bụ na enwere mfu dielectric dị iche iche na ugboro dị iche iche, a ga-ahọrọ ụfọdụ ugboro mgbe ị na-atụle uru tangent ọnwụ. N’ozuzu, a na-atụkarị ihe ndị a na-eji na moto maka tangent ọnwụ dielectric na ugboro ugboro.

N’okpuru ọrụ nke voltaji, ihe mkpuchi ahụ ga-enwe obere ntanye mmiri mgbe niile site na ya. Akụkụ nke ugbu a na-agafe n’ime ihe; akụkụ ya na-agafe n’elu ihe. Ya mere, ihe mgbochi mkpuchi nwere ike kewaa n’ime olu resistivity na elu resistivity. The olu resistivity na-egosipụta n’ime ime eletriki conductivity nke ihe, na unit bụ ohm·meter; ihe mgbochi elu na-akọwapụta ọkụ eletrik nke elu ihe, na unit bụ ohm. Mgbochi olu nke ihe mkpuchi mkpuchi na-abụkarị 107 ruo 1019 m · m. Ihe mgbochi nke ihe mkpuchi na-ejikọta ya na ihe ndị a. Ọtụtụ n’ime adịghị ọcha dị na ihe mkpuchi ahụ na-emepụta ion conductive, nke nwere ike ịkwalite mwepu nke mkpụrụ ndụ polar, na-eme ka mgbochi ahụ daa ngwa ngwa. Ka okpomọkụ na-ebili, resistivity na-ebelata nke ukwuu.