I. Basic Zvinodiwa Kuti Kutonhodza Rate
Kurumidza kupfuura nepakati pecrystallization-sensitive zone Nzvimbo yakanyunguduka yePTFE i327°C, uye tembiricha ye sintering inotangira pa380°C kusvika 400°C. Munguva yekudzikisa tembiricha, chinodiwa chikuru kukurumidza kuyambuka tembiricha yakatenderedza 310 ~ 315 ° C uko mwero wecrystallization unokwira zvakanyanya.
Nzira dzekuvhiya dzinokurudzirwa Kana wangobuda muchoto chekupisa, shandisa kutonhora kwemhepo, kutonhora kwemhepo yakadzvanywa, kana kushandisa ma roller ekutonhodza / mvura yekutonhodza masisitimu kudonhedza tembiricha yejira iri pasi pe250°C.
Reference kutonhora mwero zviratidzo Zvichienderana nekukora kwechigadzirwa, mwero wekutonhora wakawanda haufanirwe kunge uri pasi pe30~50°C/min. Pamucheka mutete-gauge wepamusoro-tembiricha (0.08mm ~ 0.25mm), kutonhora kwemhepo kunogona kuwana mwero wekutonhora uri pamusoro pe100 ~ 200 ° C/min, ichigonesa kupfuura ipapo kuburikidza neyakaoma crystallization zone.
Crystallinity inotemesa epakati chigadzirwa zvivakwa Kutonhorera modhi inotonga zvakananga kujeka kwePTFE, iyo inowedzera kuraira akakosha ekupfekedza maitiro anosanganisira kuchinjika, kunamatira uye kusaita tsvimbo.
Kuenzanisa Kwekuita Pakati Pekukurumidza uye Kunonoka Kutonhora
Cooling Mode |
Crystallinity |
Coating Performance Behavior |
Kukurumidza Kutonhodza (Kudzima) |
Yakaderera (inenge 45~50%) |
Yakapfava, yakanakisa kusimba, yakatsetseka pamusoro, kunamatira kwakasimba, yepamusoro isiri-tsvimbo pfuma, inoshingirira delamination uye kuputika. |
Kutonhorera Kunonoka (Kutonhodza Kwevira) |
Pamusoro (pamusoro pe60 ~ 70%) |
Yakaomarara, yakakwira brittleness, inoda kudonha uye kusvuuka, microcrack chizvarwa, kupfupikiswa kwehupenyu hwesevhisi hwekusina-tsvimbo maitiro. |
Microstructural Tsanangudzo Kukurumidza kutonhora kunodzora kukura kwehukuru-hukuru spherulites uye inoumba yakanaka microcrystalline chimiro. Izvi zvinoshandura iyo PTFE firimu denser uye yakawanda ductile, ichideredza kusara kunetseka pakati pekuvhara uye fiberglass substrate.
III. Key Control Points muMisa Kugadzirwa
Guarantee yunifomu kutonhora Kutonhodza kuyerera kwemhepo kana kutonhodza rollers kunofanirwa kuchengetedza tembiricha yakafanana paupamhi hwejira. Kusaenzana kwekiristallinity yenzvimbo kunokonzeresa nzvimbo ine manyawi kana kuunyana.
Dzivisa kuvhundutsa kwakanyanya kwemafuta Pamachira gobvu ekudziya kwepamusoro (0.5mm zvichikwira), kumwaya mvura yakananga kana kusangana nekukasika nema roller anotonhora zvakanyanya zvinogona kukonzeresa deformation inokonzerwa nekusapindirana kwekupisa kwekushisa pakati pe substrate nekupfeka. Mafambiro ekushanda anodiwa imhepo yakanyanyisa kutonhora kusvika pasi pe250°C isati yawedzera kutonhora.
Kutonhodza manejimendi kune akawanda-pass sintering Kune akawanda-impregnation & akawanda-sintering maitiro, zviri pakati nepakati kutonhora kutonhora kunogamuchirwa kune epakati sintering cycles. Nekudaro, iyo yekupedzisira pamusoro sintering nhanho inofanirwa kutora nekukurumidza kutonhora kuti ichengetedze yakakwana pamusoro pekuita basa.
IV. Core Summary
1. Kukurumidza kutonhora kunosungirwa post PTFE jira sintering kuitira kuti yakanyungudutswa PTFE isvetuke yakakwirira-tembiricha crystallization zone nekukurumidza.
2. Kukurumidza kutonhora kunogadzira yakaderera-crystallinity microcrystalline chimiro, inova kiyi yekusarudzika kuchinjika, kupeta kuramba uye inogara kwenguva refu isiri-tsvimbo kuita.
3. Nyatsodzora kutonhodza kufanana, kudzivirira kuvhunduka kwemafuta, uye gadzirisa zvirongwa zvekutonhodza zvematanho akawanda ekudonha kudzikamisa hunoenderana kunaka kwechigadzirwa.
Izvo zviri pamusoro pehunyanzvi zvemukati zvinopihwa ne Jiangsu Aokai New Materials Technology Co., Ltd.
Kana iwe uchida kuwana tsanangudzo dzakadzama, mamiriro ekushandisa uye zvigadziriso zvakagadziridzwa zvechigadzirwa chedu chizere chepodfolio chinosanganisira PTFE yakakwirira-tembiricha jira, PTFE yakakwirira-temperature adhesive tepi, PTFE yakakwirira-temperature mesh bhandi, seamless kupisa kupisa bhandi, single-sided PTFE jira, yakakwirira-tembiricha inodzivirira pazasi inodzivirira girazi, tapota taura nesu pazasi-inodzivirira girazi.
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