Chitsulo alimbane zida ptfe kawirikawiri anapangidwa ndi kumaliseche doko, doko chakudya, kaonedwe kalilole, etc., koma mmene bwinobwino ntchito mtundu uwu wa chitoliro doko mu zovuta mutu intersecting mzere, ndithudi, yankho lathu ndi kuwotcherera, ndiye mmene kuwotcherera? Kodi kulamulira kutentha kwa ptfe kuwotcherera?Pansi timauza mmodzimmodzi.
Chitsulo alimbane zida ptfe kawirikawiri anapangidwa ndi kumaliseche doko, doko chakudya, kaonedwe kalilole, etc., koma mmene bwinobwino ntchito mtundu uwu wa chitoliro doko mu zovuta mutu intersecting mzere, ndithudi, yankho lathu ndi kuwotcherera, ndiye mmene kuwotcherera? Kodi kulamulira kutentha kwa ptfe kuwotcherera?Pansi timauza mmodzimmodzi.
1, ptfe mutu chitoliro pakamwa kupanga
PTFE chitoliro kuwotcherera pa kusindikiza mutu woyamba wa zonse, tiyenera PTFE kusindikiza mutu nozzle, malinga ndi kukula kwa nozzle m'mimba mwake zitsulo mutu ndi malinga ndi gawo lina ntchito ufa akamaumba ndondomeko kupanga nozzle, 8 hours sintered pansi pa 380 kuphatikiza kapena opanda 5 digiri Celsius, akamaliza sintering nozzle wabwino ndi lathe galimoto kukula bwino, kuti zikomo wa PTFE chubu pa nthawi ino mwamaliza.
2, ptfe mutu kutsegula
Ikani mutu wochotsedwa mumutu wachitsulo, ndikugwiritsa ntchito mfundo yowunikira kuti mutsegule bwino mutu, tcherani khutu kumutu wa ptfe uyenera kukhala wogwirizana ndi mutu wachitsulo, kapena zida zomaliza zimakhala zovuta kwambiri, kuphulika ndi zoopsa zina. .
3, ptfe chitoliro pakamwa kuwotcherera
Ndi masitepe awiri oyamba, titha kuchita kuwotcherera kwa PTFE.Apa tikudziwa kuti pali njira ziwiri zowotcherera (kuwotcherera kutentha ndi kuwotcherera mpweya wotentha).Tidzawafotokozera mmodzimmodzi.
(1) kuwotcherera kutentha kwamphamvu
Pamaso kutentha kuthamanga kuwotcherera tiyenera kudziwa zofunika ongolankhula kudziwa, kutentha kuthamanga kuwotcherera ndi mtundu wa kuwotcherera otentha, kupereka kutentha okwanira ndi pressure.Here mokwanira, tiyenera kuonetsetsa kuti kuwotcherera mawonekedwe kutentha ayenera kufika 673.15k ndi mavuto kufika 1-2mpa. .Choncho, pofuna kuonetsetsa kuwotcherera, tiyenera kupanga zisamere pachakudya lolingana kuonetsetsa kuti bwino akamaliza matenthedwe kuthamanga kuwotcherera.Pamene zonse zachitika, FEP filimu akhoza welded ndi pressurizing ndi kutentha mawonekedwe pakati pa nozzle ndi mutu.
(2) kuwotcherera mpweya wotentha
Momwemonso, kuwotcherera kwa ptfe ndi mtundu wa kuwotcherera kotentha, komwe kumakhala kosavuta kuposa kuwotcherera kwamphamvu komanso sikufuna zisankho zambiri.Mukayika pakamwa pa chitoliro, ndodo yowotcherera ya PFA ndi mfuti yowotcherera ya mpweya wotentha kuposa 713K imagwiritsidwa ntchito kutenthetsa PFA kaye kenako ndikuyiyika pamsoko wowotcherera kuti muwotchere mosalekeza.
Zindikirani: kaya kutentha kuthamanga kuwotcherera kapena kutentha kutentha kuwotcherera kutentha adzakhala apamwamba kuposa malo osungunuka wa ptfe, ptfe n`zotheka pansi pa kutentha akulimbana, umabala m`kati pyrolysis perfluorinated isobutylene ndi mpweya wina wakupha, kotero kuwotcherera ayenera kukhala mu malo mpweya wabwino, pamene chikhalidwe salola monga anayi fluorine akalowa thanki kuwotcherera popanga ayenera kugwiritsa ntchito zimakupiza mpweya kupereka mpweya wotsimikizira ndi kuvala chigoba mpweya kuonetsetsa chitetezo pa nthawi yomweyo.
Nthawi yotumiza: Jun-24-2019