Sintering inhanho yakakosha apo PTFE zvimedu zvinonyunguduka, kuyerera, uye fuse kuita firimu rinoenderera. Asi zvakare inhanho apo flatness inorasika nyore nyore. Kusawirirana kusingaenzaniswi, kukurumidza kuchinja tembiricha, kana kusazvidzora zvakakwana zvinogona kukonzera kuunyana kusingadzokerike, wavy edges, uye warpage isingagadziriswe mushure.
Nheyo yemusimboti wekuchengetedza kupfava ndiyo chaiyo kutonga pamusoro pemakakatanwa, tembiricha, uye nzira dzekudzivirira - kugonesa kuumbwa kwakarongeka kwefiberglass substrate uye yakanyungudutswa PTFE coating.
Aokai PTFE (PTFE fiberglass jira ) yakagadzira yakasimba sintering maitiro kuti ive nechokwadi chakafanana flatness. Iri gwara rinovhara mashanu akakosha ekudzora mapoinzi ekudzikama flatness mukugadzirwa kwehuwandu.
Equipment Restraint - Stenter Machine Inosungirwa
Iyi ndiyo yakakosha mhinduro yekudzivirira weft shrinkage uye wavy selvedges. Pini stenter (kana clip stenter) inofanira kuiswa mukati mevira remoto.
1. Crosswise kuumba
Pini mahwendefa anobaya micheto yemicheto. Nekugadzirisa hupamhi hwehupamhi hwemaketani ekutakurisa, nyoro yakachinjika tension inoshandiswa - kana padiki, iyo yepakutanga jira upamhi inochengetedzwa kurwisa kupisa kwekupisa kushushikana kweiyo substrate pasi pekupisa kukuru. Pasina kuzvidzora uku, upamhi hwejira hunoderera uye mipendero inova wavy.
2. Longitudinal control
Chaiyo yekumhanya mutsauko pakati pemberi nekumashure rollers uye yakavharwa-loop tension control inoburitsa yakanyanya-yakaderera uye yakatsiga longitudinal tension:
Scientific Temperature Profile - Gradient Heating uye Slow Cooling
Iyo gradient curve yekudziya zvinyoro, kunyungudika kwakazara, uye kunonoka kutonhora kunodiwa kuti ubvise kuvhunduka kwekushisa uye kushushikana-induced warpage.
1. Kupisa nzvimbo
Tembiricha inokwira zvishoma nezvishoma yakatenderedza PTFE melting point (327°C) kuenzanisa tembiricha yemukati neyepamusoro pejira. Kupisa kwenzvimbo kana kukurumidza kupisa kwekushisa kunotungamira kune kusaenzana shrinkage uye zvisingaperi creases. Chinangwa ndechekubvumira kupisa kupinda zvakafanana kuburikidza nehukobvu hwejira kusati kwatanga kunyungudika.
2. Sintering holding zone
Nguva dzose tembiricha yakachengetedzwa pa 380-400 ° C kwenguva yakakwana yekugara. Izvi:
Inonyungudisa zvizere PTFE zvimedu kuita firimu rinoenderera
Inoburitsa yakasara yemukati kushushikana kwefiberglass pasi pekudzorwa flat mamiriro
Inovimbisa fusion yakazara uye densification
3. Nzvimbo yekutonhodza - inogara isingatarisirwi, asi yakakosha
Iyi ndiyo nhanho iyo warpage inowanzoitika. Kunonoka kutonhora kunodiwa paunenge uchichengetedza stenter kuzvidzora kusvikira tembiricha yadonha pazasi pePTFE crystallization point (approx. 310°C ).
Mutemo wakakosha: Kukurumidza kutonhora kutonhora kwemhepo kunokonzeresa shrinkage pakati pejasi uye substrate - zvichikonzera kupetana kuchinjika kana kupeta selveges isingagone kupepetwa mushure. Chengetedza jira rakadziviswa kusvikira PTFE yakanyatsojeka uye yakavharwa muchimiro chayo chekupedzisira.
Kuputika panguva yekupisa kunoenderana nezvinoitika jira risati rapinda muchoto.
1. Pre-shrinking of base fabric
Pamberi pePTFE impregnation, jira refiberglass rinopinda mukupisa-tembiricha dewaxing uye pre-kuderera kubvisa kuruka kusara kunetseka. Izvi zvinoderedza zvakanyanya shrinkage panguva yekupisa uye inoisa hwaro hwepamusoro flatness.
Aokai PTFE chiziviso: Pasina pre-kudonha, iyo fiberglass inoedza kuita chibvumirano panguva yekunyura - kurwisa kuzvidzora uye kukonzera kusagadzikana kusagadzikana kugovera.
Iyo PTFE yakamisikidzwa layer inofanirwa kuve neukobvu hunoenderana pajira rese. Kupfeka kusina kuenzana kunokonzeresa kunyungudika nguva - nzvimbo dzakatetepa dzinonyunguduka nekukurumidza kupfuura nzvimbo dzakakora - dzichigadzira kushushikana kwakafanana neorenji peel magadzirirwo uye kuparadza flatness.
Kurongeka kwakaringana kwekumisikidza, kupfekedza blade yechiremba, uye kusvina kutenderedza maitiro kwakakosha.
Kunyangwe misiyano midiki yeukobvu (0.01mm) inogona kukonzera kukanganisa kunoonekwa kwepamusoro.
Kurongeka kweKuyerera kweMhepo uye Kurongeka Kwemarongerwo
1. Kupisa kwemhepo kutenderera kugadzira
Adopt kumusoro-uye-pasi counter-kuvhuvhuta kana yunifomu inotenderera mhepo inopisa mukati mechoto kudzivirira imwe-divi simba mhepo inoyerera yakananga kumucheka - izvo zvinokonzeresa mavanga eflutter. Tsigiro yemhepo cushion yakatsiga mumahovhoni akachinjika inodzivirira machira kudonha pamusoro pezvirefu zvakamiswa.
2. Kuenderana kwakasimba kwema rollers
Ese ekutungamira ma roller uye tension rollers anofanirwa kuchengetedza ultra-high parallelism uye kugara akachena pasina anonamira masara:
Kutsauka kwejira diki kunotungamira kune kusaenzana kunetsana kumativi ese uye unilateral wrinkles
Iyo otomatiki edge inogadzirisa system ichave yakashongedzerwa
Kugara kuchenesa kunodzivirira adhesive buildup iyo inokonzeresa shanduko yemakakatanwa
Yakakwana flatness haiwanikwe nekunze kudzvanya simba. Pane kudaro, pasi pekudzivirira kwakanyatsorongwa kwemuchina we stenter, tembiricha yeyunifomu uye tension inonyungudika uye kubatanidza PTFE yekuputira nefiberglass substrate kuita yakatsetseka inoumbwa, ine zvese zvakasara kushushikana zvinoburitswa kuburikidza zvishoma nezvishoma kutonhora.
Kutsauka mune chero nzira imwe chete yekubatanidza inozopedzisira yaratidza seyakaenzana jira pamusoro.
Process Step |
Flatness Chinodiwa |
Failure Mode |
Substrate pretreatment |
Pre-shrunk, kusagadzikana-isina |
Secondary shrinkage panguva sintering |
Coating |
Uniform ukobvu |
Kunyungudika kwakasiyana → svuura orenji |
Stenter kuzvidzora |
Pini mahwendefa, kudzorwa upamhi |
Weft shrinkage, wavy edges |
Tension control |
Yakaderera, yakatsiga, yakavharwa-loop |
Wrinkles (yakanyanya kuderera) kana warpage (yakanyanya kukwirira) |
Heating zone |
Zvishoma nezvishoma, zvakadzikama |
Kupisa kwepanzvimbo → zvimedu zvisingaperi |
Holding zone |
380-400 ° C, zvakakwana kugara |
Kusanganiswa kusina kukwana |
Kutonhodza nzvimbo |
Inononoka, yakadziviswa pasi pe310 ° C |
Warpage, mipendero yakakomberedzwa |
Kuyerera kwemhepo |
Balanced, hapana kupindira kwakananga |
Flutter marks |
Rollers |
Parallel, yakachena |
Unilateral wrinkles |
Aokai PTFE inodzora ese aya ma paramita kuendesa PTFE jira rine yakavimbiswa flatness. Nezve maapplication anoda ekupedzisira-flat jira (semuenzaniso, PCB laminating, solar laminators), tinopa yakaomesesa flatness yakatarwa uye mamwe maitiro ekuwedzera flattening.
Izvo zviri pamusoro pehunyanzvi zvemukati zvinopihwa ne Jiangsu Aokai New Materials Technology Co., Ltd.
Kana iwe uchida kudzidza zvakanyatsotsanangurwa, mamiriro ekushandisa uye zvigadziriso zvakagadziridzwa zvemutsara wezvigadzirwa zvedu, zvinosanganisira PTFE yakakwirira-tembiricha jira, PTFE yakakwirira-temperature adhesive tepi, PTFE yakakwirira-temperature mesh bhandi, seamless kupisa kudzvanya bhandi, single-sided PTFE jira, yakakwirira-tembiricha inodzivirira inodzivirira girazi, tapota taura nesu kuburikidza negirazi resipiritsi, faibha inodzivirira, tapota taura nesu.
Isu tinogara tichinamatira kune hunyanzvi uye kutendeseka-kwakanangana nesevhisi pfungwa, nemoyo wese tichipa imwe-yekumira maindasitiri mhinduro uye inofunga sevhisi yevatengi!
