Kwizityalo zemichiza, imibhobho kunye neenqanawa zijongene nokuhlaselwa rhoqo kumajelo ahlaselayo - i-acids eqinile, i-alkalis eshushu, i-solvents eziphilayo kunye ne-steam. Iteyiphu ye-PTFE sisisombululo esixhaphakileyo sokuthintela ukubola, ukungakhuni, kunye nokhuseleko lokutywina. Kodwa ukukhetha iteyiphu elungileyo akulula njengokukhetha ubushushu obuphezulu.
I-Aokai PTFE ibonelele ngeteyiphu ye-PTFE kwizicelo zeekhemikhali amashumi eminyaka. Esi sikhokelo sichaza isakhiwo esinemigangatho emithathu ye-PTFE tape, iindlela zokukhetha ezingundoqo (ubushushu, imidiya yeekhemikhali, iimfuno zoomatshini), kunye nezikhokelo ezibalulekileyo zokwakha.
Ulwakhiwo oluneZintlu eziNtathu ze-PTFE iTape yobushushu obuphezulu
Ukusebenza ngokubanzi kwetheyiphu ye-PTFE yorhwebo kumiselwa ngamaleya amathathu olwakhiwo:
Umaleko woLwakhiwo |
Izinto eziqhelekileyo |
Impembelelo ekuKhethweni kweMveliso |
Umphezulu osebenzayo umaleko |
Ifilimu ye-PTFE ecocekileyo / ilaphu le-fiberglass efakwe kwi-PTFE |
Ilawula ipropathi engeyiyo intonga, ukumelana neekhemikhali, kunye nokumelana nobushushu obukhulu |
Ukuqinisa i-substrate |
Akukho (ifilimu esulungekileyo) / ilaphu leFiberglass / ilaphu leAramid |
Imisela amandla oomatshini, ukuxhathisa kwe-tensile, kunye nokumelana nokugqabhuka |
Umaleko wokuncamathelisa |
Silicone PSA, Acrylic PSA, Rubber-based PSA |
Ibeka umda ophezulu wokushisa kunye nokuchasana kweekhemikhali kwi-tape yonke; ngokuqhelekileyo ikhonkco lokusebenza elibuthathaka |
Ukuqonda okubalulekileyo: Nangona i-PTFE ngokwayo inokusebenza ngokuzinzileyo ukusuka kwi -190 ° C ukuya kwi-260 ° C ixesha elide, i- adhesive yi-bottleneck yokusebenza . Khetha i-adhesive ngokusekelwe kwinkonzo engqongileyo yokwenyani, hayi nje umphezulu we-PTFE.
Iikhrayitheriya zokuKhetha ezingundoqo kunye neMithetho-siseko yokuTyaniswa
1. Ukushisa okusebenzayo - ukhetho lwe-adhesive luyiyona nto iphambili
Uluhlu lobushushu |
I-Adhesive ecetyiswayo |
Ngoba |
200°C – 260°C (ixesha elide) |
I-Silicone PSA (iyafuneka) |
Inkqubo yokunamathela kuphela egcina i-tackiness ezinzileyo kolu luhlu; intsalela encinci emva kokuxobula |
I-120 ° C - 180 ° C ene-solvent ephezulu kunye nokumelana ne-oyile |
Ubushushu obuphezulu be-acrylic PSA |
Ukudibanisa okunamandla kune-silicone, kodwa kusilela ngokukhawuleza kwi-260 ° C |
Ngaphantsi kwe-100°C |
I-acrylic eqhelekileyo okanye i-rubber-based |
Kwamkelekile, kodwa kunqabile kwiindawo zeekhemikhali |
Inqaku le-Aokai PTFE: Ukusetyenziswa kwi-200 ° C+, i-acrylic PSA ayamkelekanga - iya kuthobisa, ithambe, kwaye ibangele i-tape peeling. I-Silicone kuphela kokhetho olusebenzayo.
Umaleko osebenzayo we-PTFE ubonisa phantse ukuxhathisa umhlwa (ngaphandle kweentsimbi ezinyibilikisiweyo zealkali kunye nobushushu obuphezulu boxinzelelo lwegesi yefluorine). Nangona kunjalo, imidiya yeekhemikhali ingena kwi-tape edges kwaye igubungele ngokuthe ngqo i-adhesive layer.
Imidiya yeMichiza |
I-Adhesive ecetyiswayo |
Isilumkiso |
I-Inorganic acids ezomeleleyo (HCl, H₂SO₄ ≤80%), iialkali ezomeleleyo (NaOH), ibrine, umphunga wamanzi |
I-Silicone PSA |
Ukunyamezela okugqwesileyo; yenza isigqubuthelo sokhuselo esizinzile |
Izinyibilikisi ze-Organic (i-ketones, i-esters, i-benzene, i-toluene), i-oyile, izibaso, i-acid oxidizing ezomeleleyo (HNO₃, i-H₂SO₄), i-glacial acetic acid. |
I-Acrylic PSA (ibakala elimelana ne-solvent) |
I-silicone idumba kwii-solvents eziphilayo; I-acrylic iyacetyiswa, kodwa qinisekisa ukulinganisa ubushushu (ngokubanzi ≤150 ° C) |
Umphunga wobushushu obuphezulu + isixa esikhulu se-asidi/ialkali (i-exposure etshintshanayo) |
I-silicone eguqulweyo ye-PSA + i-multi-layer winding |
Imeko enzima kakhulu - i-silicone inokuthi i-hydrolyze; yomeleza nge-multi-layer winding |
Kumaqondo obushushu angaphezu kwe-150°C kunye nezinyibilikisi eziphilayo: Sebenzisa ukulungiswa komatshini okanye iglu-free heat-shrink ecocekileyo ye-PTFE tape/tubing.
Iimeko zeSicelo kunye noKhetho lweSubstrate oluFanayo
Imeko yesicelo |
I-Substrate ecetyiswayo |
Isizathu |
Umbhobho wodonga lwangaphandle lokuchasa umhlwa kunye ne-anti-stick yokugquma (thintela ukuqokelelana kwezinto zokutshiza) |
Ilaphu le-fiberglass egqunywe ngamandla aphezulu e-PTFE (brown/black) |
Ukunganxibi, ukumelana nokukrala; ubukhulu 0.13-0.25mm; ilungele ukujijwa ngokuphindaphindiweyo, ukuhambelana okugqwesileyo |
Udonga lwangaphakathi lwesitya kunye ne-flange surface anti-stick liner |
Ifilim ecwengileyo yePTFE |
Umphezulu we-Ultra-smooth non-stick, akukho mngcipheko we-fiber wicking; ilungele indawo ethe tyaba kunye nenkulu egobileyo |
Ukudibanisa i-shaft kunye ne-roller wrapping |
Ilaphu le-PTFE ye-fiberglass ene-adhesive high-tack silicone |
Ixhasa i-tension winding; i-fiberglass substrate ihambisa amandla aphezulu, inqanda i-deformation ngexesha lokujikeleza |
Ukutywinwa kwemisonto kunye nokutshintshwa kwegasket |
Iteyiphu yefilimu ye-PTFE eyenziwe ngomatshini |
Isebenzisa ipropathi ye-PTFE yokuhamba okubandayo ukuzalisa izithuba; iteyiphu engenafiberglass iyafuneka |
Imingxunya kunye neeglasi zeetanki zokugcina iasidi eyomeleleyo |
Ifilimu ye-PTFE ecocekileyo / ilaphu le-fiberglass eline-adhesive ye-acrylic enganyangekiyo ngamachiza |
Ifilimu esulungekileyo ibeka yodwa imithombo yeendaba ezonakalisayo; Ilaphu le-fiberglass liphucula ukuqina; imilenze edibeneyo ifuna ukuqiniswa kwe-multi-layer |
Ulwakhiwo olubalulekileyo kunye nezikhokelo zoKhuseleko
1. Unyango lwangaphambili - isiseko sokubambisana
Ukususa igrisi ngokupheleleyo, ukususwa komhlwa, nokomiswa kuyafuneka. Sula imiphezulu nge-acetone okanye utywala obulandelwa kukubhaka okukhawulezayo kwedangatye ukuze uphindaphinde amandla okubopha. Oku kususa ukungcola kwaye kusebenze umgangatho wesinyithi ukuze unamathele kakhulu.
2. Iileyile ezidityanisiweyo kunye nezijikajikayo
Ubuncinci bemigangatho ye -2-3 ejikelezayo iyafuneka kukhuseleko lwekhemikhali kunye ne-50% yokudibanisa kwisangqa ngasinye. Iziphelo zetape kufuneka ziqiniswe ngokuhambelana ne-PTFE tape okanye izibophelelo zentambo yensimbi engenasici ukuthintela ukuxobulwa ngokupheleleyo emva kokungena kwe-adhesive ngamajelo eendaba.
3. Umda wokhuseleko - nini ukuphepha iteyiphu ye-PTFE ngokupheleleyo
Kumajelo eendaba alandelayo agqithisileyo, zonke iiteyiphu ezinezinto ezincamathelayo eziphilayo azikhuselekanga :
Enye indlela: Tshintshela kumgca we-PTFE opheleleyo okanye isigqubuthelo esiqinileyo esidityanisiweyo (akukho nto incamathelayo).
4. Amanyathelo achasene ne-static kunye nobungqina bokudubula
Ukuba umbhobho uhambisa imathiriyeli ezinokutsha kunye noqokelelo olungagungqiyo lunokwenzeka, khetha iteyiphu ye-PTFE ye-anti-static (idla ngokuba mnyama mnyama nge-carbon filler, ukumelana nomphezulu 10⁶-10⁹ Ω) ukutshabalalisa intlawulo engatshintshiyo ngokukhuselekileyo.
IsiShwankathelo – UKhetho lweTeyiphu ye-PTFE eKhawulezayo kwiSikhokelo seMichiza
Ukuba indawo yakho... |
Khetha... |
Ziphephe... |
I-200-260 ° C, i-acids / alkali / umphunga |
I-Silicone PSA + i-fiberglass substrate |
I-Acrylic PSA (iya kuthoba) |
120-150 ° C, izinyibilikisi eziphilayo |
I-Acrylic PSA (i-solvent-resistant) |
I-Silicone PSA (idumba kwizinyibilikisi) |
>150°C, izinyibilikisi eziphilayo |
Ifilimu ye-PTFE ecocekileyo + ukulungiswa koomatshini |
Nayiphi na iteyiphu encamathelayo |
HF, ukubilisa >80% alkali, ClF₃ |
I-PTFE-kuphela ilayini (akukho ncanyathiso) |
Nayiphi na iteyipu ene-adhesive organic |
Izinto ezinokutsha, umngcipheko ongatshintshiyo |
Anti-static (carbon-ezaliswe) PTFE tape |
Iteyiphu esemgangathweni engasebenziyo |
Ukutywinwa kwemisonto, ukuvala isithuba |
Itheyiphu yefilimu ye-PTFE ecocekileyo |
I-tape eqiniswe nge-Fiberglass |
I-Aokai PTFE inikezela ngoluhlu olupheleleyo lweeteyiphu ze-PTFE kwizicelo zeekhemikhali - i-silicone ye-PSA ye-acid-temp-temp / alkali service, i-acrylic PSA yokumelana ne-solvent, kunye namabakala achasene ne-static. Qhagamshelana nathi ngemidiya yakho yeekhemikhali, uluhlu lobushushu, kunye neemfuno zoomatshini kukhetho olulungelelanisiweyo.
Lo mxholo wobugcisa ungentla unikwe ngu I-Jiangsu Aokai yeZixhobo eziNtsha zeTekhnoloji Co., Ltd.
Ukuba ufuna iinkcukacha ezicacileyo, iimeko zesicelo kunye nezisombululo ezilungiselelwe uluhlu olupheleleyo lweemveliso ezibandakanya i-PTFE ilaphu eliphezulu lobushushu obuphezulu, i-PTFE iteyiphu yokuncamathela yobushushu obuphezulu, i-PTFE ye-mesh belt, i-belt engenamthungo yokushisa, ilaphu le-PTFE elinecala elinye, ibhanti lokuhambisa elinobushushu obuphezulu kunye ne-fiber-resistant nceda uqhagamshelane nathi nge-glass-resistant.
Sihlala sibambelela kubuchwephesha kunye nefilosofi yenkonzo ejolise kwintembeko, sinikezela ngeentliziyo ezipheleleyo izisombululo zamashishini kunye nenkonzo yabathengi ecingayo kuwo onke amaqabane!
