Ihe karịrị afọ iri isii Polytetrafluoroethylene (PTFE, ika aha: Tarflen, polymer, Fluon) ka amara ma mara maka ihe pụrụ iche ya.A na-ejikarị ya na ngalaba niile nke ụlọ ọrụ, gụnyere mmepụta nke mgbanwehosesnke dị iche iche ewu na ngwa.
Njirimara pụrụ iche PTFE:
- Magburu onwe kemịkalụ eguzogide.Ọ naghị agbaze ma ọ bụ zaa n'ime ihe mgbaze a ma ama.Ọ na-eguzogide acids na bases nke ukwuu.Naanị ihe ole na ole, ihe ndị na-adịghị ahụkebe (fluorine, na-esi alkali ọla, oxygen bifluoride, chlorine trifluoride) nwere ike imetụta PTFE.- Wide nso nke thermal resistance.PTFE na-anọgide na-agbanwe ọbụna na okpomọkụ nke helium mmiri mmiri (-269 ° C) .Crystalline agbaze ebe PTFE bụ + 327 ° C, na + 415 ° C decomposition nke PTFE na-ewere ọnọdụ.Na-arụ ọrụ okpomọkụ maka hoses mere nke PTFE na-emekarị site na -70 ° C ruo + 260 ° C dabere na sooks imewe (nrụgide na n'ibu paramita nke PTFE na-amalite ibelata mgbe okpomọkụ na-ebili n'elu +130 ° C) - Nguzogide ịka nká. na ọnọdụ ihu igwe.PTFE bụ hydrophobic, kpamkpam na-eguzogide ozone, oxygen, ìhè na UV radieshon.Ihe nlele ekpughere ruo ọtụtụ iri na abuo nke afọ na ọnọdụ ihu igwe dị iche iche egosighi mgbanwe ọ bụla na akụrụngwa PTFE.- PTFE nwere ọnụọgụ dị ala nke esemokwu (site na 0.02 ruo 0.2) yana uru dị ala nke ike elu.Ya mere hoses mere nke PTFE nwere ihe na-ehicha onwe ya (ihe na-adịghị adabere na mgbidi sooks) n'ihi ya, nfefe dị ezigbo ọcha.
Ihe ndị ọzọ yiri PTFE
Enwere ike ịmepụta hoses ọ bụghị naanị site na PTFE kamakwa site na PTFE copolymers.Ha na-egosipụtakarị kemịkalụ dị elu na nguzogide thermal mana ihe ndị ọzọ dịtụ iche ma e jiri ya tụnyere PTFE (nguzogide igwe ka mma, àgwà nhazi ka mma):
- FEP (polymer FEP, DuPont), - PFA, MFA (polymer PFA, DuPont), ETFE (Tefzel, DuPont), - ECTFE (Halar).
Mmepụta na iwu nke PTFE hoses
N'ihi nnukwu viscosity ọbụlagodi na okpomọkụ dị nso na ire ere ọkụ (+415°C),PTFE hosesA na-arụpụta ya site n'iwepụ ngwakọta nke mmanu (mmanụ paraffin) na ntụ ntụ PTFE.
Ụdị ihe owuwu PTFE:
- Hoses dị nro na nke corrugated na-enweghị eriri.Eji maka ngwa nrụgide dị ala.Mgbidi translucent, PTFE na-enye ohere njikwa anya nke mmiri na-asọpụta.- Ọkpụkpụ dị nro nwere otu braid mpụga ma ọ bụ okpukpu abụọ nke igwe anaghị agba nchara.A na-eji ya eme ihe fọrọ nke nta ka ọ bụrụ mgbasa ozi niile: kemịkalụ, gas, uzuoku, mmanụ, mmanụ, mmanụ, mmanụ, agba, adhesives, nri na ngalaba ụlọ ọrụ niile.Nchikota nke dịtụ elu na-arụ ọrụ nrụgide nke hoses (ruo gburugburu 400 mmanya) na PTFE pụrụ iche Njirimara pụta na a eluigwe na ala na irreplaceable ngwọta maka na-adịbeghị anya ulo oru technology.- Corrugated hoses na mpụga braids mere nke igwe anaghị agba nchara ma ọ bụ dị iche iche ihe.Mgbe ụfọdụ, a na-eji helix waya nchara na-emesi ike n'etiti PTFE na braid nke mpụga.Emepụtara n'ụdị nhọrọ ihe owuwu dị iche iche na nrụgide ọrụ dị ala mana mgbanwe dị elu karịa hoses na-amị amị .- Ọkpụkpụ dị nro na-eji eriri PTFE extruded nwere akwa akwa akwa, mgbake waya helix siri ike na akwa mpụta nke rọba.A na-emegharị akwa niile ma jikọta ya na oyi akwa ime PTFE - dịka ọ dị na eriri roba ọkọlọtọ.Eji tumadi na chemical ụlọ ọrụ.
Oge nzipu: Jun-02-2018