Mgbawa Shenhai-Ihe akaebe
Na ngwa eletriki na-agbawa agbawa, A na-ekewa ihe mkpuchi mkpuchi n'ime ụdị siri ike na mmiri mmiri, ahaziri kpọmkwem maka ngwa ndị a, n'adịghị ka sara mbara mkpuchi edemede.
Ngwa mkpuchi siri ike
Akpọrọ ya dị ka “ihe mkpuchi ihe siri ike,” ndị a bụ ihe ndị na-anọgidesi ike n'okpuru ọnọdụ arụ ọrụ. Ụdị a gụnyere ihe ndị dị ka mkpuchi mkpuchi, nke na-abụ mmiri mmiri na mbụ ma na-agbasi ike na ngwa.
Ihe mkpuchi siri ike a na-ejikarị eme ihe na ngwa eletrik na-agbawa mgbawa ka edepụtara n'okpuru.
| Ọkwa ihe | Tụnyere Ndekọ Ndepụta (CTI) | Aha ihe |
|---|---|---|
| I | 600≤CTI | Ceramik (glazed), mica, iko |
| II | 400≤CTI 600 | Melamine asbestos arc plastik, silicone organic asbestos arc na-eguzogide plastik, nchịkọta polyester na-adịghị mma |
| III-a | 175≤CTI 400 | Polytetrafluoroethylene plastic, melamine iko fiber plastic, epoxy iko akwa osisi mesoo na arc na-eguzogide agba n'elu |
| III-b | 100≤CTI 175 | Plastic phenolic |
A na-enweta akara ngosi ihe ndị a dabere na ntụle ntụle ntụle ha (CTI), a atụ nke elu eletrịk arụmọrụ. Agbanyeghị, ha n'ibu, thermal, na chemical Njirimara nwere ike ịdị iche iche nke ukwuu, na-eme ka nhọrọ nlezianya dị mkpa dabere na ọnọdụ gburugburu ebe obibi akọwapụtara nke eji, gụnyere echiche maka ike n'ibu, okpomọkụ na-eguzogide, na chemical anwụ ngwa ngwa.
Ceramic (Gzọrọ) Akụrụngwa
Gụnyere ihe mkpuchi inorganic na-abụghị ọla, A na-emepụta ihe ndị a site n'inweta ígwè oxides na ogige ndị na-abụghị oxygen. Àgwà ha gụnyere oke ike nke 1000 ~ 5000HV, ike tensile si 26 ~ 36 MPa, ike mkpakọ si 460 ~ 680 MPa, ebe mgbaze gafere 2000°C, obere mgbasawanye thermal, na elu chemical kwụsie ike na iguzogide corrosion.
Polytetrafluoroethylene (PTFE)
Ihe fluoroplastic a na-akwado ojiji ogologo oge gafee okpomọkụ site na -180 ° C ruo 260 ° C.. Ọ kwụsiri ike nke ukwuu, eguzogide corrosion, na-egosipụta ọnụọgụ esemokwu dị ala, ma nwee nnukwu ọnụọgụ mgbasawanye thermal.
Plastic phenolic
Plastic thermosetting, mara azụmahịa dị ka “bakelite” ma ọ bụ “phenolic osisi,” ọ nwere ike iguzogide okpomọkụ karịrị 3000 Celsius ma na-enye ezigbo nkwụsị ọkụ na nkwụsi ike kemịkal, ọ bụ ezie na ọ na-agbawa agbawa na ọ dịghị eguzogide corrosion alkali.
Na mgbakwunye na ihe mkpuchi siri ike a kpọtụrụ aha, Akụrụngwa eletriki na-agbawa agbawa na-eji ihe mkpuchi siri ike dị iche iche eme ihe, gụnyere ihe plastik maka ihe mkpuchi mkpuchi na ụfọdụ ihe enyemaka na moto na-agbawa agbawa.
Ngwa mkpuchi mmiri mmiri
Ihe ndị a na-ezo aka na ihe mkpuchi ihe a na-ahụkarị n'ụdị mmiri mmiri, dị ka mmanụ transformer, na ihe ndị dị ka varnish insulating nke ejiri maka impregnation eriri igwe, nke siri ike mgbe ọgwụgwọ kpọmkwem ma ka na-ewere mmiri insulators.
1. Mmanụ Transformer
• Ihe dị mkpa maka ngwa eletriki na-agbawa mgbawa dị ka ihe ngbanwe, mmanụ a ga-emezurịrị ụkpụrụ:
• Ebe mgbanye adịghị n'okpuru 300°C.
• Ebe ọkụ adịghị n'okpuru 200°C (iko mechiri emechi).
• Kinematic viscosity adịghị agafe 1*10?? m²/s na 25°C.
• Dielectric mmebi ike dịkarịa ala 27kV.
• Olu resistivity dịkarịa ala 1*10??? m na 25 Celsius C.
• Ntụnye mmiri adịghị n'elu -30 Celsius.
• Acidity (neutralization uru) ruo 0.03 mg/g (potassium hydroxide).
Mmanụ ntụgharị, bụ isi mmanụ mkpuchi ịnweta nke nwere alkanes, cycloalkanes, na unsaturated aromatic hydrocarbons, na-enye ezigbo mkpuchi mkpuchi na nkwụsi ike ịka nká. Agbanyeghị, Amachibidoro iji ya na akụrụngwa Ngwuputa Klas I n'ihi enwere ike imebi ihe mkpuchi ya maka iji ogologo oge..
2. Varnish
Ejiri ya maka ịgbanye eriri eletrik n'ime akụrụngwa na-egbochi mgbawa, varnish na-ekpuchi ọkụ na-eme ka ike mkpuchi ọkụ eletrik ha dịkwuo mma. Dị na ihe mgbaze na ụdị na-enweghị ihe mgbaze, Emebere varnishes ndị a sitere na resin eke ma ọ bụ sịntetik jikọtara ya na ihe mgbaze dị iche iche dị ka benzene na alcohols maka ụdị mgbaze., na sịntetik resins, ndị na-eme ka mmadụ sie ike, na ndị na-arụsi ọrụ ike dị ka styrene maka ụdị na-enweghị ihe mgbaze.
Ụdị varnish abụọ ahụ na-enye ọtụtụ nhọrọ iji kwado mkpa ngwa dị iche iche, n'ịhụ na mgbanwe na kpọmkwem arụmọrụ chọrọ.