Zingwe zopangidwa kuchokera ku PTFE zimatsimikizira kukana kwa mankhwala

Zomwe zimachitika chifukwa cha kutentha kwambiri komanso kupanikizika koyambira mpaka 260 ° C / 200 mipiringidzo, ndizomwe zimapangidwira ma reactor a Berghof.Mbali yapadera ya Berghof reactors ndi wapadera, wandiweyani PTFE liner.Magawo onse, omwe amalumikizana ndi media media, amapangidwa kwathunthu kuchokera ku PTFE kapena amakutidwa ndi fluoropolymer.

Chitetezo cha corrosion chikuphatikizidwa

PTFE liner, yomwe ndi yokhuthala mamilimita angapo, imateteza choyatsira chitsulo chosapanga dzimbiri bwino kuti chisachite dzimbiri, ngakhale kuzinthu zowononga monga ma asidi ndi alkali.PTFE imasiyanitsidwa ndi kukana kwake kwakukulu kwa pafupifupi mankhwala onse, zomwe zimapangitsa kuti zitheke popanda ma aloyi ambiri okwera mtengo, monga hastelloy.Izi zimachepetsa kwambiri ndalama zogulira.Chiwopsezo cha kuipitsidwa kwapakatikati ndikosavuta kuwongolera ndi PTFE liners.zitsulo catalysers , monga Pt, Rh, Raney Nickel etc amatsatira reactors zitsulo ndi zovuta kuchotsa.M'mayesero otsatirawa funso likupitilirabe ngati zotsatira zake zachitika chifukwa cha kusintha kwa chothandizira, kuwononga kapena kupha poyizoni.Vutoli limathamangitsidwa mwaluso posungira PTFE liner pamtundu uliwonse wa catalyser.Tip: The PTFE liners angagwiritsidwenso ntchito ngati zothandiza zotengera zosungiramo zotakasuka.

Kugwiritsa ntchito konsekonse

Berghof reactors angagwiritsidwe ntchito pazifukwa zonse;Ziwalo zonse zomwe zimakumana ndi gawo lamadzimadzi zimatetezedwa kuti zisawonongeke ndi mankhwala pogwiritsa ntchito fluoropolymers.Chovalacho chimasindikizidwa bwino ndipo chimamatirira mkati mwa khoma la riyakitala ngati chikopa.Choncho zimasiyana kwambiri ndi PTFE liners, amene anayikidwa lotseguka mu riyakitala.Liner yonseyo imakhala ndi choyikapo chochotseka cha PTFE, chivundikiro, chitoliro choviika ndi ma agitator sheaths ndi mphete zosindikizira za PTFE.Zigawo zonsezi zitha kuchotsedwa ndikuyikidwanso mosavuta kuti ziyeretsedwe.Makulidwe a makoma a liner amatengera voliyumu ya riyakitala ndipo amakhala pakati pa 1.6 ndi 7.4 mm.Kutalika kwa chivundikirocho ndi pafupifupi 3.7 mm.Kuthamanga kwakukulu kwa ma reactors ndi mipiringidzo 200 ndipo kutentha kwakukulu kwa ntchito yosalekeza ndi 230 ° C.Kwa nthawi yochepa (ie max. 60 min) riyakitala imathanso kutenthedwa mpaka 260 °C.Kutentha kwambiri komanso kutentha kwanthawi yayitali kuposa 260 ° C kumawononga PTFE liner.Chifukwa cha kutentha kwapamwamba kumeneku, zigawo za PTFE zachizolowezi zimakhala "zosokoneza";koma zigawo za Berghof sizitero.Izi zigawo PTFE alibe malangizo ankakonda chifukwa, chifukwa cha isostatic psinjika-akaumba njira yopangidwa ndi Berghof alibe malangizo ankakonda ndi kudzisiyanitsa ndi coefficients kukula chomwecho mbali zonse mu danga."Kusokonekera" kwa ziwalozo, ngakhale pa kutentha kwakukulu ndi kupanikizika kumachotsedwa.

Ubwino wa PTFE-lining:→Kutentha kwakukulu, pang'ono mpaka +260 ° C→Pressure-olimba mpaka 200 mipiringidzo→Kukana kwachilengedwe konse kwa mankhwala, ngakhale ku ma acid aukali ndi alkali→Zosawononga→Zopanda kuipitsidwa

Isostatic compression molding

paB Pamene ochiritsira, single-olamulira psinjika akamaumba njira ntchito, monga ulamuliro zakuthupi wothinikizidwa vertically mu nkhungu ndi mphamvu pulagi.Palibe kukanikizana kopingasa kopingasa komwe kumapita kokanikizira.Mosiyana ndi izi, mu isostatic compression-molding process mphamvu imayikidwa kuzinthu mofanana ndi nthawi imodzi kuchokera mbali zonse mumlengalenga kudzera pa hydraulic medium ndikuyiyika mofanana.Chifukwa chake kuponderezana koyenera kumatheka, zomwe zimapangitsa kuti pakhale porosity yochepa, mawonekedwe abwino kwambiri a pamwamba komanso mphamvu zolimba komanso zolimba.Palibe mayendedwe omwe amapangidwa ndipo zinthu za isotropic zimasungidwa.Makamaka mphamvu yamakokedwe ndi kuponderezana kwazinthu ndizogwirizana mbali zonse mumlengalenga.

Ubwino wabwino chifukwa cha kuponderezedwa kwa isostatic

Ubwino wa kuponderezana kwa isostatic ukhoza kuwonetsedwa pogwiritsa ntchito zithunzi zokulirapo za REM.Pamene anakulitsa 100 nthawi granulate particles wa zinthu choyambirira akadali kudziwika PTFE ngati wakhala pansi single-olamulira psinjika akamaumba.Mosiyana ndi izi, PTFE yopangidwa ndi isostatically compression-molded imasonyeza mawonekedwe apamwamba kwambiri.Ndi pafupifupi ofanana ndi single-axis compression-molded TFM™PTFE.Komabe TFM™PTFE yopangidwa ndi isostati-cally compression-molded imakwaniritsa bwino kwambiri komanso yosalala.Kuphatikiza apo, zikakulitsidwa nthawi za 2,500, zolakwika zakuthupi zopangidwa ndi axis imodzi zimawonekera, zomwe sizichitikanso mu TFM™PTFE yopangidwa ndi isostatically.