Offshore platforms, ngarava, maturbine emhepo emumhenderekedzo yegungwa, uye midziyo yeinjiniya yemugungwa yakatarisana nemuvengi asinganeti: pfapfaidzo yemunyu . Inoshatisa simbi, inoshatisa zvinonamira, uye inopfupisa hupenyu hwemidziyo. Inogona PTFE high-temperature tepi
Mhinduro pfupi: iyo PTFE substrate pachayo haigone kuparadzwa mumunyu wekupfapfaidza. Asi kuita kwetepi kwese kunoenderana zvakanyanya nerudzi rwekunamatira uye mhando yekuisa .
Aokai PTFE yakapa PTFE matepi ezvikumbiro zvemugungwa kwemakore. Ichi chinyorwa chinotsanangura kuramba kwemunyu kupfapfaidza, kusarudzwa kwekunamatira, kugadzirira kwepamusoro, kuvhara kumucheto, uye kugadzirisa - kuitira kuti iwe ugone kuwana kuvimbika kwenguva refu munzvimbo dzemahombekombe uye kumahombekombe.
Munyu Spray Resistance - PTFE Substrate vs. Adhesive
1. PTFE Substrate - Kunyatsoramba
PTFE inoratidza yakanakisa makemikari inertness. Iyo inenge isiri-reactive nemvura yegungwa uye munyu wekupfapfaidza, ine mwero wekutora mvura uri pasi pe0.01% . Iyo zvakare inopa yakanakisa UV uye mamiriro ekunze kuramba. Iyo PTFE substrate pachayo inoshingirira zvachose kupfapfaidza munyu - hapana ngura, kuora, kana kurasikirwa kwezvinhu zvemuviri.
Data rakakosha: PTFE hairatidze huremu hunoyerwa shanduko kana kudzikira kwepasi mushure mezviuru zvemaawa mumakamuri ekupfapfaidza munyu.
2. Adhesive – The Weak Link
Iyo yese yemunyu yekupfapfaidza kuramba kwetepi kunoenderana zvakanyanya nerudzi rwekunamatira:
Adhesive Type
Munyu Spray Resistance
Kukodzera kune Marine
Silicone PSA
Yakanakisa - inomira 500-1000+ maawa asina kwayakarerekera munyu pfapfaidzo bvunzo; svuura simba kuchengetedza> 80%
✅ Sarudzo yaunoda
Acrylic PSA
Hurombo - hydrolysis, plasticizer migration, yakakosha adhesion kurasikirwa pasi pekupisa kukuru / humidity / munyu pfapfaidzo.
❌ Hazvikurudzirwi
Nei silicone ichihwina: Iyo muchinjika-yakabatana silicone system inherently hydrophobic, UV-resistant, uye yakagadzikana mhiri -70 ° C kusvika 260 ° C. Iyo inochengetedza kunamatira uye kuchinjika kunyangwe mushure menguva refu yemunyu pfapfaidzo.
Nei acrylic achitadza: Zvakajairwa acrylic adhesives vanopinda hydrolysis munzvimbo yakakwirira-mwando. Iyo munyu yakapfapfaidza inomhanyisa kuparara kweester zvisungo, zvichitungamira kunamira kupfava, kutama, uye pakupedzisira kutadza kwebhondi.
Aokai PTFE inoshandisa chete yakakwirira-inoshanda silicone PSA kune edu emugungwa-giredhi PTFE matepi. Isu takasimbisa matepi edu kuburikidza nekuzvimiririra 1000-awa kusarerekera munyu kupfapfaidza kuyedzwa ne> 80% peel simba rekuchengetedza - zvinyorwa zviripo pakukumbira.
Zvinodiwa Zvekushandisa ZveMarine & Yakakwira Munyu Kupfapfaidza Nzvimbo
Kune yakavimbika sevhisi pamapuratifomu ekumahombekombe, ngarava, mahombekombe emhepo masimba emagetsi, uye marine engineering midziyo, yakazara-maitiro ekudzora anofukidza kusarudzwa kwezvinhu, kuvaka, dhizaini, uye kugadzirisa kunodiwa.
1. Kusarudzwa kwezvinhu
Zvinodiwa
Tsanangudzo
Adhesive
Silicone-yakavakirwa, tembiricha kuramba ≥260 ° C, refu-inoshingirira kune yakakwira humidity, munyu pfapfaidzo, uye UV.
Substrate
Yakachena PTFE firimu kana yemhando yepamusoro PTFE-yakaiswa fiberglass jira - yakakwira mechaniki simba, yakaderera permeability, yepamusoro yemamiriro ekunze.
Mashandisirwo emagetsi ekudzivirira
Sarudza tepi ukobvu zvinoenderana voltage level; account ye creepage distance yekudzivirira creepage pasi pemunyu wekupfapfaidza uye nekunyorova mamiriro
2. Surface Treatment
Nyatsobvisa mafuta, munyu, uye ngura kubva panzvimbo yekubatanidza. Ita shuwa kuti pasi pakaoma zvachose.
Pukuta kakawanda neanhydrous ethanol kana acetone kusvikira pasisina zvinosvibisa.
Pamusoro penzvimbo dzesimbi: Inokurudzirwa kuita roughen nejecha kana jecha (80-120 grit) kuwedzera mechanical anchoring simba.
Pamamiriro ezvinhu akanyanya: Isa silicone primer nekuwedzera - inonatsiridza zvakanyanya kunamatira kwekutanga uye yenguva refu yemunyu kupfapfaidza kuramba pane simbi.
Nei izvi zvichikosha: Iyo tepi-substrate interface ndiyo isina kusimba nzvimbo munzvimbo dzekupfapfaidza munyu. Kusakwana kwepamusoro kurapwa kunobvumira munyu kupfapfaidza kupinda mukati meiyo interface, zvichikonzera kuora kwesimbi substrates kana delamination yeadhesive layer.
3. Maitiro ekuvaka
Danho
Zvinodiwa
Sei
Mamiriro ezvakatipoteredza
Ambient tembiricha ≥10°C, hunyoro hunoenderana ≤75%. Usaise panzvimbo ine dova kana mvura
Inodzivirira condensation pasi pe tepi
Air bubble kubviswa
Roll kana tepi yakatsetseka zvizere mushure mekushandisa kudzinga ese mabhuru emhepo
Inovimbisa 100% kubata kwakasimba, hapana mavhodhi emunyu wekupfapfaidza kuunganidza
Lap width
≥10–15 mm. Isa kudzvanya kwakawedzera panzvimbo dzinopindirana. Optionally nyorovesa adhesive nemhepo yakadzika-tembiricha inopisa usati wadzvanya
Inonatsiridza chisimbiso pane zvakapoteredzwa
Kuisa chisimbiso kumucheto (chakakosha kune zvemugungwa)
Pfeka mipendero yese yakavhurwa nemamiriro ekunze-inodzivirira silicone sealant
Inovhara kupinza kwemunyu kupfapfaidza pamwe chete nenzvimbo - danho rakakosha rekuvimbika kwenguva refu
4. Dhizaini & Kusarudzwa Mitemo
Tepi hupamhi - Ichave yakakura kupfuura nzvimbo yakadzivirirwa, ichichengeta yakakwana yekuisa chisimbiso muganho weinenge 5-10 mm parutivi rumwe norumwe.
Kuwedzera kwekushisa - Kupihwa shanduko yekushisa kwakanyanya pakati penzvimbo dzakavhenekerwa nezuva / dzine mimvuri uye masikati/husiku, sarudza matepi ane kuchinjika kwakanaka uye kuenderana kudzivirira kubva mukupisa bhasikoro.
Electrochemical corrosion - Kana yaiswa kune cathodic dziviriro masisitimu kana majoini emasimbi akasiyana, tarisa kuti tepi ine yakaringana yekudzivirirwa kwekudzivirira kudzivirira galvanic corrosion.
5. Kushanda & Maintenance
Basa
Frequency
Chiito
Kuongorora nguva dzose
Yese 3-6 mwedzi
Tarisa kurwa, kukuvara, kutsemuka, edge sealant kutendeseka
Kubvisa munyu dhipoziti
Sezvinodiwa (mushure mezviitiko zvekupfapfaidza munyu)
Shamba nemvura yakachena; rega kuoma zvakasikwa. Dzivisa kuchengetwa kwenguva refu kwemunyu (mafomu akaiswa mhinduro, kurwisa interface)
Kugadzirisa kukuvara kwenzvimbo
Pakarepo
Chenesa nzvimbo yakakuvadzwa, shandisa tepi nyowani pamaitiro akajairwa, simbisazve mipendero
Kutsiva kwakarongwa
Zvichienderana neruzivo rwemumunda + yakawedzera bvunzo mhinduro
Tsiva kunyangwe pasina hurema hunooneka - kana hupenyu hwesevhisi hwasvika
Pfupiso - Makiyi Ekubudirira Zvinhu zveMarine PTFE Tape Chikumbiro
Success Factor
Chiito Chinokosha
Adhesive kusarudzwa
Shandisa silicone PSA chete - acrylic ichakundikana
Kugadzirira kwepamusoro
Yakachena + roughen (sandblasting/sanding) + primer yemamiriro akanyanya
Bubble-yemahara application
Roll/squeegee kubvisa ma air voids
Kuvhara kumucheto
Isa rinodzivirira mamiriro ekunze silikoni sealant kune ese akafumurwa mipendero - isingagone kutaurirana yemugungwa
Nguva dzose kuchengetedza
Ongorora mwedzi 3-6 yega yega; sukurudza munyu deposits; gadzirisa kukanganisa pakarepo
Kutsiva kwakarongwa
Zvichienderana neruzivo rwemumunda - usamirire kutadza kunooneka
Muchidimbu , tepi yePTFE yakakwirira-tembiricha yakagara yakanakira nzvimbo dzemugungwa nemunyu wakakwirira - iyo PTFE substrate inopikisa munyu, UV, uye mwando zvakakwana. Zvisinei, kuvimbika kwenguva refu kwe tepi kunoenderana nekunamatira. Silicone PSA ndiyo yega sarudzo yekumahombekombe uye yemahombekombe maapplication, ine yakaratidza 500-1000+ awa yemunyu yekupfapfaidza bvunzo kuita (> 80% kuchengetedza peel). Acrylic PSA ichakundikana mukati memwedzi.
Kupfuura sarudzo yekunamira, budiriro inoda kucheneswa kwepamusoro uye roughening, isina bubble-isina application, uye - zvakanyanya kutsoropodza - mupendero chisimbiso nesilicone sealant kuvhara munyu pfapfaidzo kupinda. Kuongororwa nguva dzose uye kuchinjwa kwakarongwa kunopedzisa nzira yekuvimbika.
Unoda PTFE tepi yekushandisa yemugungwa kana yekumahombekombe? Aokai PTFE inopa silicone PSA PTFE matepi akasimbiswa kuti arambe achipfapfaidza munyu. Bata isu nemamiriro ako ezvakatipoteredza, substrate zvinhu, uye inotarisirwa hupenyu hwesevhisi kune yakarongedzwa kurudziro.
Zvemukati zvinopihwa ne Jiangsu Aokai New Materials Technology Co., Ltd.
Kana iwe uchida kudzidza zvakawanda nezve yakadzama paramita, mamiriro ekushandisa, uye yakagadziridzwa mhinduro kune yedu yakazara chigadzirwa renji, zvinosanganisira high-temperature machira, PTFE yakakwirira-temperature matepi, PTFE mesh mabhandi, seamless fusing muchina mabhandi, single-sided PTFE machira, yakakwirira-tembiricha inodzivirira uye inodzivirira girazi regirazi PTFE
Isu tinoomerera kune iyo sevhisi dzidziso yehunyanzvi uye kuvimbika, uye takazvipira kuendesa imwe-yekumira mhinduro uye masevhisi ane hanya kune vese vatengi.
