Mumiti yemakemikari, mapaipi uye midziyo inotarisana nekurwiswa nguva dzose kubva kune hutsinye media - asidhi yakasimba, alkali inopisa, organic solvents, uye steam. PTFE tepi ndiyo yakajairika mhinduro yekudzivirira-kuora, isina-tsvimbo, uye chisimbiso kudzivirira. Asi kusarudza tepi chaiyo hakusi nyore sekusarudza yakanyanya tembiricha chiyero.
Aokai PTFE yakapa PTFE tepi yemakemikari ekushandisa kwemakumi emakore. Iri gwaro rinotsanangura matatu-layer chimiro chePTFE tepi, core sarudzo maitiro (tembiricha, makemikari media, mechanical zvinodiwa), uye yakakosha nhungamiro yekuvaka.
Iyo Matatu-Layer Chimiro chePTFE Yakakwira-Tembiricha Tepi
Kuitwa kwese kwekutengesa PTFE tepi kunotemerwa nezvikamu zvitatu zvezvimiro:
Structural Layer |
Common Materials |
Impact paKusarudzwa Kwechigadzirwa |
Surface functional layer |
Yakachena PTFE firimu / PTFE-yakaiswa fiberglass machira |
Inotonga isiri-tsvimbo pfuma, makemikari kuramba, uye yakanyanya tembiricha kuramba |
Kusimbisa substrate |
Hapana (yakachena firimu) / Fiberglass jira / Aramid jira |
Inotemesa simba remuchina, tensile kuramba, uye puncture kuramba |
Adhesive layer |
Silicone PSA, Acrylic PSA, Rubber-based PSA |
Inoisa iyo yepamusoro tembiricha muganhu uye makemikari kuramba tepi yose; kazhinji iyo isina kusimba yekuita link |
Muono wakakosha: Kunyangwe PTFE pachayo ichigona kushanda zvakatsiga kubva -190°C kusvika 260°C kwenguva refu, chinonamira ndicho bhodhoro rekuita . Sarudza inonamira yakavakirwa pane chaiyo sevhisi nharaunda, kwete chete PTFE pamusoro.
Core Sarudzo Yekuita uye Matching Principles
1. Kushanda tembiricha - adhesive kusarudzwa ndiyo inonyanya kukosha
Temperature Range |
Inokurudzirwa Adhesive |
Sei |
200°C -260°C (nguva refu) |
Silicone PSA (inodiwa) |
Iyo chete inonamira sisitimu inochengetedza yakagadzikana tackiness pane iyi siyana; zvishoma zvakasara mushure mekusvuura |
120 ° C - 180 ° C ine yepamusoro solvent & mafuta kuramba |
High-temperature acrylic PSA |
Kubatana kwakasimba kupfuura silicone, asi kunokundikana nekukurumidza pa260 ° C |
Pasi pe100°C |
Yakajairika acrylic kana rubber-based |
Inogamuchirwa, asi isingawanzo munzvimbo dzemakemikari |
Aokai PTFE note: Pamaapplication ari pa200°C+, acrylic PSA haigamuchirwi - inodzikisira, kupfava, uye kukonzeresa kusvuura tepi. Silicone ndiyo chete sarudzo inoshanda.
Iyo PTFE inoshanda layer inoratidzira ingangoita yepasirese corrosion kuramba (kunze kwekunyungudusa alkali simbi uye yakakwirira-tembiricha yakakwirira-kumanikidza fluorine gasi). Nekudaro, midhiya yemakemikari inopinda kubva pamatepi echeto uye inobvisa zvakananga iyo yekunamatira layer.
Chemical Media |
Inokurudzirwa Adhesive |
Kuchenjerera |
Inorganic yakasimba asidhi (HCl, H₂SO₄ ≤80%), alkali yakasimba (NaOH), brine, mhute yemvura. |
Silicone PSA |
Excellent tolerance; inoumba yakagadzikana inodzivirira cladding |
Organic solvents (ketones, esters, benzene, toluene), mafuta, mafuta, yakasimba oxidizing acids (HNO₃, concentrated H₂SO₄), glacial acetic acid. |
Acrylic PSA (giredhi risingagadzirise solvent) |
Silicone inoputika mune organic solvents; acrylic inokurudzirwa, asi simbisa chiyero chekushisa (kazhinji ≤150 ° C) |
High-temp steam + high-concentration acid/alkali (alternating exposure) |
Yakagadziridzwa silicone PSA + yakawanda-layer mhepo |
Hashest mamiriro - silicone inogona hydrolyze; simbisa ne-multi-layer winding |
Kana tembiricha inopfuura 150°C ine organic solvents: Shandisa mechanical fixing kana glue-isina heat-shrink pure PTFE tepi/tubing.
Mamiriro ekushandisa uye Inoenderana Substrate Sarudzo
Application Scenario |
Yakakurudzirwa Substrate |
Chikonzero |
Pombi yekunze madziro anti-corrosion & anti-stick coating (kudzivirira splash zvinhu kuunganidzwa) |
Yakakwirira-yakasimba PTFE-yakavharwa fiberglass jira (brown/dema) |
Kusapfeka, kusabvarura; ukobvu 0.13-0.25mm; yakakodzera kudzokororwa mhepo, yakanakisa conformability |
Vessel yemukati madziro & flange pamusoro anti-stick liner |
Transparent pure PTFE firimu |
Ultra-yakatsetseka isiri-tsvimbo pasi, hapana fiber wicking njodzi; yakanakira nzvimbo yakati sandara uye yakakura yakakombama |
Kusanganisa shaft & roller kuputira |
PTFE fiberglass jira rine yakakwirira-tack silicone adhesive |
Inotsigira tension winding; fiberglass substrate inopa yakanyanya kusimba simba, inodzivirira deformation panguva yekutenderera |
Kuisa chisimbiso uye gasket kutsiva |
Yakagadzirwa yakachena PTFE firimu tepi |
Inoshandisa PTFE inotonhora inoyerera pfuma yekuzadza mapundu; fiberglass-isina tepi inodiwa |
Manholes & magirazi ekuona ematangi ekuchengetedza asidhi yakasimba |
Yakachena PTFE firimu / fiberglass jira rine makemikari-resistant acrylic adhesive |
Firimu rakachena rinotsaura corrosive media; fiberglass jira rinovandudza kuoma; majoini emakumbo anoda multi-layer reinforcement |
Yakakosha Kuvaka uye Kuchengetedza Nhungamiro
1. Surface pretreatment - nheyo yekubatana
Kubvisa mafuta zvachose, kubvisa ngura, uye kuomesa. Pukuta nzvimbo neacetone kana doro rinoteverwa nekukurumidza murazvo wekubika kuti uwedzere simba rekubatanidza. Izvi zvinobvisa zvinosvibisa uye zvinomutsa simbi yepasi kuti iwedzere kunamatira.
2. Kupindirana uye kupeta zvidimbu
Zvishoma zve 2-3 mapeji akaturikidzana anodiwa kudzivirira kemikari ne50% kupindirana padenderedzwa. Tepi inogumira inofanira kusimbiswa neinofananidzira PTFE tepi kana Stainless simbi tambo tambo kudzivirira kusvuura kuzere mushure mekunamira kupinda nemedia.
3. Chikumbaridzo chekuchengetedza - nguva yekudzivisa PTFE tepi zvachose
Kune anotevera midhiya yakanyanyisa, matepi ese ane organic adhesive haana kuchengetedzeka :
Imwe nzira: Chinja kune yakazara PTFE lining kana welded fixed cladding (hapana adhesive).
4. Anti-static uye kuputika-uchapupu matanho
Kana pombi ichiendesa zvinhu zvinopfuta uye kuungana kwakasimba kuchiitika, sarudza tepi inorwisa-static PTFE (kazhinji dema dema ine carbon filler, surface resistivity 10⁶-10⁹ Ω) kuti iparadze static charge zvakachengeteka.
Pfupiso - PTFE Tape Sarudzo Yekukurumidza Gidhi yeKemikari Zvishandiso
Kana nharaunda yako iri... |
Sarudza... |
Nzvenga... |
200-260°C, acids/alkali/steam |
Silicone PSA + fiberglass substrate |
Acrylic PSA (ichaderedza) |
120-150 ° C, organic solvents |
Acrylic PSA (solvent-resistant) |
Silicone PSA (inoputika mune zvinonyungudutsa) |
>150°C, organic solvents |
Yakachena PTFE firimu + mechanika kugadzirisa |
Chero adhesive tepi |
HF, kufashaira >80% alkali, ClF₃ |
PTFE-chete lining (hapana adhesive) |
Chero tepi ine organic adhesive |
Zvinhu zvinopfuta, static ngozi |
Anti-static (carbon-filled) PTFE tepi |
Non-conductive standard tape |
Kuisa chisimbiso che thread, gap filling |
Skived yakachena PTFE firimu tepi |
Fiberglass-yakasimbiswa tepi |
Aokai PTFE inopa huwandu hwakazara hwematepi ePTFE ekushandiswa kwemakemikari - silicone PSA ye-high-temp acid / alkali sevhisi, acrylic PSA yekudzivirira kunyungudika, uye anti-static mamakisi. Bata isu nekemikari yako midhiya, tembiricha renji, uye zvemuchina zvinodikanwa pakusarudza kwakagadzirirwa.
Izvo zviri pamusoro pehunyanzvi zvemukati zvinopihwa ne Jiangsu Aokai New Materials Technology Co., Ltd.
Kana iwe uchida tsanangudzo dzakadzama, makesi ekushandisa uye zvigadziriso zvakagadziridzwa zvechigadzirwa chedu chizere zvinosanganisira PTFE yakakwirira-tembiricha jira, PTFE yakakwirira-temperature adhesive tepi, PTFE yakakwirira-temperature mesh bhandi, seamless kupisa rinotsikirira bhandi, single-sided PTFE jira, yakakwirira-tembiricha inotakura bhandi uye inodzivirira kupisa, ndapota taura nesu pazasi jira rinodzivirira.
Isu tinogara tichinamatira kuhunyanzvi uye kutendeseka-kwakanangana nesevhisi uzivi, nemoyo wese tichipa imwe-yekumira maindasitiri mhinduro uye inofunga sevhisi yevatengi kune vese vanobatana!
