Ọ bụ ezie na nitrile butadiene rọba (NBR) bụ ihe na-achị ikuku turbine akara ihe ruo ọtụtụ iri afọ, ọganihu na polyurethane seal formulation, nhazi na imewe na-ngwa ngwa na-emebi NBR ọnọdụ na ụlọ ọrụ.Ọ tụgharịrị na ihe ndị kachasị baa uru gụnyere nguzogide iyi, ndakọrịta mmiri, nguzogide ozone, ike igwe, na ikike idobe ihe ndị a niile na obere okpomọkụ.
Polyurethane aghọwo ihe dị mma maka ịchichi isi bearings / generators, longitudinal na transverse bearings.Otú ọ dị, nanị iji dochie ihe ndị dị adị adịghị ezurukarị.Ekwesịrị iji polyurethane chepụta akara.
Otu ụzọ ị ga-esi nyochaa nguzogide iyi nke polyurethane bụ site n'ule elele drum dị ka ASTM D5963.A na-ejikarị usoro a na-enyocha rọba, mana ọ na-emetụtakwa polyurethane, karịsịa ma ọ bụrụ na a na-atụnyere ọnụego uwe.N'okpuru bụ ụkpụrụ ntinye aka uwe maka ihe dị iche iche nke Sistemụ Seals nwalere na Cleveland.Rịba ama na NBR na HNBR nwere ARI nke ihe dịka 1.5, ebe polyurethane nwere ARI nke 4 ruo 8. Nke a bụ mmụba nke ruo ugboro isii.
Polyurethane na-ejigide ụkpụrụ ARI ya n'oge na mgbe ekpughere ya na mmiri dị iche iche, ọkachasị mmiri mmiri sitere na mmanụ.Otu ụzọ isi chọpụta nke a bụ ịka ASTM D5963 na-eyi ihe nlele n'ime mmiri na 100 ° C maka ụbọchị 90 (80 Celsius maka mmiri mmiri mmiri) ma na-emegharị ule kwa ụbọchị 30 ọ bụla.N'okpuru bụ nsonaazụ ahụkarị, mana akwadoro nkwenye maka mmiri mmiri ọ bụla.
Ọgụgụ 3. Njide ARI na NBR na polyurethane na-eguzogide hydrolysis mgbe ịka nká na mmanụ ịnweta mmanụ distilled na 100 ° C.
Ọ bụ ezie na nkọwapụta na-egosi ndakọrịta na mmiri emechara, nnwale ịka nká ngwa ngwa (ma ọ bụ afọ ọrụ) kwesịrị ikpebi arụmọrụ ogologo oge yana nkwụsi ike nke ihe ndị ekpughere na mmiri pụrụ iche.Akara Sistemu na-anwale maka ndakọrịta mmiri maka ụbọchị 90 karịa ọkọlọtọ ọkọlọtọ elekere 168 n'ihi na Sistemu Seals na-achọpụta mgbanwe dị ukwuu na akụrụngwa akụrụngwa mgbe awa 168 nke mkpughe mmiri gasịrị.
Polyurethane ahaziri ahazi na-egosipụta nguzogide mmiri ka mma tụnyere NBR na mmanụ mmanye na-ahụkarị na ụlọ ọrụ ike ikuku.N'okpuru ebe a bụ tebụl ndakọrịta maka mmanu ndị a na-ewu ewu.
A maara NBR ka ọ na-enwe ike ịnweta ozonolysis, nke bụ mgbe mkpụrụ ndụ ozone na-agbaji njikọ kemịkalụ na NBR na-adịghị mma.Ozone mgbawa na-adịkarị mgbe nitrile butadiene roba (NBR) na-edobere ọbụna nrụrụ nke nta.Otu ihe ngwọta bụ ịgbanye wax n'ime NBR, na-emepụta ihe mgbochi ozone nke na-echebe NBR.N'ụzọ dị mwute, wax adịghị agbanwe njikọ kemịkal nke NBR.Ọ bụrụ na ekpughere NBR na ọnọdụ gburugburu ebe obibi na-ewepụ wax, ọ ga-enwe ike imebi ọzọ.Ụfọdụ polyurethanes ọpụrụiche ejiri na akara ike ikuku na-eguzogide ozone.
Igwe na-agbanwe agbanwe, ike na elongation nke polyurethane dị okpukpu abụọ ruo atọ karịa ọtụtụ NBR.N'ihi ya, polyurethane akàrà na-enwe ike iguzogide nrụrụ arụ ọrụ ka ukwuu ma nagide ibu ọrụ dị elu.
Otu NBR nke a na-ahụkarị nwere modulus nke 10-15 MPa yana ike ike nke 20 MPa.Ọtụtụ polyurethane nwere modul na-agbanwe nke 45-60 MPa na ike ike nke 50-60 MPa.Nke a pụtara na ihe ahụ adịghị ike karịa NBR, nke pụtara njigide ọdịdị dị mma na iguzogide ibu nrụgide.
Na igwe ikuku ikuku, oke okpomọkụ anaghị abụkarị nsogbu.Otú ọ dị, dabere na ọnọdụ na elu, opekempe okpomọkụ nke -40°C abụghị ihe ọhụrụ.Standard NBR nwere opekempe na-arụ ọrụ okpomọkụ nke -20C, na ike n'ibu nyocha egosila na ọtụtụ ikuku ume polyurethanes adịghị emetụta okpomọkụ ruo -40C.
Polyurethane bụ nhọrọ ebumpụta ụwa maka akara ike ikuku n'ihi akụrụngwa akụrụngwa ya kachasị elu, nguzogide ozone ka mma, ọnụ ala iyi na obere okpomọkụ na-arụ ọrụ.N'okpuru ebe a bụ ezinụlọ abụọ nke ngwa nke polyurethane dabara nke ọma.Onyonyo dị n'aka ekpe na-egosi nrụrụ simulated na njirimara kọntaktị nke akara mkpuchi polyurethane.Onyonyo dị n'aka nri na-egosi akara Sistem Seals swirl, akara bụ isi nke na-ebunye mmanu na-aga n'ihu n'ime ebe nchekwa ka ihe na-ebu ya na-atụgharị.
Ọ bụrụ na ịchọrọ inye aka na Windpower, biko kpọtụrụ anyị: https://www.bdseals.com ma ọ bụ www.bodiseals.com.NINGBO BODI SEALS CO., LTD na-emepụta ụdị niile nke dị iche iche elu mma roba akara,orings ,Gasket .
Oge nzipu: Dec-24-2023