Fluoroplastic: specifications, GOST

Polyacetal - ndi kupanga polima zinthu zambiri amagwiritsa ntchito mankhwala, magetsi ndi chakudya makampani makamaka monga zokutira. ubwino wake monga makamaka ntchito lonse kutentha osiyanasiyana ndi koyefishienti otsika kukhululukirana.

Tanthauzo ndi Mitundu

Fluorines amatanthauza mitundu yambiri ya fluorine munali mapulasitiki. Nthawi zambiri mu mafakitale ndi banja amagwiritsa polytetrafluoroethylene. Malinga Mlengi, nkhaniyi angatchedwe mosiyana. M'masitolo zapaderazi Russia anagulitsa kuphatikizapo polytetrafluoroethylene kunja. Chuma mu USA, amatchedwa "Teflo" mu England - "Flyuon" mu Germany "Gostaflon". Ife mu Russia amadziwika monga teflon-4.

mtundu wina wa nkhani zimenezi si ambiri anayala, komanso otchuka kwambiri. Ali:

• Polytrifluorochloroethylene (PTFE-3);
• Polyvinylidene fluoride (PTFE-2);
• copolymers zina ethylene fluorinated.

njira kupanga

Pezani mitundu zonsezi kudzera mankhwala. Ndipotu, iwo ndi ma polima amene fluorine maatomu akuwonjezeka. Choncho dzina lawo.

Fluoroplastic-4 apanga wa ufa woyera kenako mbamuikha ndi sintered pa kutentha. zopangidwa zina za nkhaniyi nthawi anawakonzera othetsa.

Mu kupanga zinthu zambiri nzeru ano ntchito Teflon. Zofunika kwenikweni zodabwitsa basi. Ubwino wa nkhaniyi monga:

• Mkulu mankhwala kukana. PTFE-4 si kupasuka ngakhale otentha Aqua regia.
• Inertness ndi otsika porosity.
• Otsika kwambiri mikangano koyefishienti. chiwerengerochi chili PTFE amakhalabe pafupi zofanana pa kutentha zonse.
• Kwambiri dielectric katundu. Nkhanizi insulator amakhalabe ngakhale pa 200 ° c.
• Kukhazikika. Chemical katundu wa fluoroplastic-4 sasintha pa kutentha kwa -300 c.
• Lawi kukana - mwayi wina wa zinthu monga Teflon. Makhalidwe (a kutentha zosagwira polima yodziwika ndi luso kudzimvera wozimitsa) kuwalola ndi ntchito mbali ya moto chiopsezo.
• Gasi zikayamba.
• Biocompatibility. mtundu wa pulasitiki kawirikawiri amagwiritsidwa ntchito kuti kupeza mano otere.

kuipa PTFE

Monga mukuonera, chuma ndi mkulu khalidwe lonse - Teflon. Iwo ali makhalidwe zodabwitsa basi. Koma, ndithudi, iye ali zina zovuta. Kuti zinthu monga:

• Mkulu ozizira otaya. katundu izi zimasokoneza ntchito PTFE mu zamagetsi.
• Luso kuonetsetsa zinthu zoipa pamene usavutike pamwamba 300 c.
• Large poyerekeza ndi ma polima ena, ndi kulemera si zabwino kwambiri avale kukana.

kumene ntchito

Fluorine pulasitiki ntchito m'madera ambiri a chuma. Nthawi zambiri izo ntchito:

• Makampani magalimoto. Popeza mikangano koyefishienti zakuthupi ndi laling'ono kwambiri, chifukwa amapangidwa mayendedwe apamwamba, mayunitsi mikangano, thandizo miyendo ndi zina zotero. D.
• Mu mafakitale magetsi ndi zamagetsi. Insulator Teflon komanso kwambiri. Choncho anagwiritsidwa ntchito kwambiri mu kupanga zingwe, matabwa dera, zigawo pakompyuta ndi zina zotero. D.
• Mankhwala. Kuwonjezera pa ziwalo ndi amadzala zopangidwa Teflon chidebe cha kasungidwe seramu ndi madzi a m'magazi. Zopangidwa iye ndi ma CD kwa mankhwala.
• Makampani chakudya. Nkhanizi bwino yosayenera Mwachitsanzo, kupanga migodi chifukwa anagubuduza mtanda ntchito Mikate Yapamwamba, mkaka yopereka mpope, etc. pa mkati ziwaya pamwamba Teflon - .. inunso Kodi mtundu wa fluoroplastic.
• Pamene kusonkhana mipope madzi ndi machitidwe kuchimbudzi (Fum-tepi).

Choncho, nkhani likufuna kwambiri, ndi zina chabe irreplaceable - Teflon. Makhalidwe (applicability ake kwenikweni waukulu kwambiri), anapereka kwa alendo, tikambirana pansipa.

mikangano koyefishienti

chiwerengerochi chili PTFE ndi laling'ono kwambiri. The kayendedwe ndi malo amodzi koyefishienti wa mikangano pa zitsulo ndi 0,04 yekha. Komabe, monga tanenera kale, PTFE - zakuthupi si cholimba kwambiri. Choncho, ngakhale pambuyo 100 apatsira pamwamba katundu wosiyanasiyana. Mu koyefishienti uyu malo amodzi a mikangano kumawonjezera mpaka 0,13, ndi kayendedwe - mpaka 0,08.

Amaloŵamo inasinthiratu fluoropolymer pamwamba ndi pa lalitali kwambiri kutsetsereka liwiro. Mu nkhani iyi, mikangano koyefishienti ndi chinawonjezeka ndi 2-3. Mtengo wa index uyu akhoza zimasiyana kwambiri ndi kusinthasintha kutentha.

Polytetrafluoroethylene amachepetsa koyefishienti wa mikangano mulole, pamene ukuwonjezeka katundu. Choncho Mwachitsanzo, pa mavuto:

• 20-30 makilogalamu / mamita ^2, mtengo wa index ichi - 0,1;
• 150-300 makilogalamu / mamita ² - 0,02.

chuma ndi yofewa zokwanira - Teflon. makhalidwe ake ali ngati kuti pamene ntchito kupanga Mwachitsanzo, mayendedwe, m'pofunika kuwonjezera fillers ufa. Izi zikhoza kukhala coke, ulusi galasi, molybdenum disulfate, ndi zina zotero. D.

katundu kuwala

Mafilimu zonyalazo Teflon momasuka transmits kuunika, mwachitsanzo mandala. Iye amayang'ana pafupi zofanana polyethylene. Mafilimu pakatikati pa nkhaniyi ndi magetsi.

Chizindikiro fluoroplastic chilungamo kwa UV cheza malinga zosiyanasiyana 2000-4000 A, chifukwa infuraredi - timaganiza kuyambira 2 7,5 μ.

Ndinakumana ndi kutentha

Pamene usavutike pa 327 madigiri fluoroplastic timibulu wake zikuwonongedwa, umene chitadutsa mu mawonekedwe amorphous. Bwinobwino magawo wandiweyani zopangidwa nkhaniyi ndi opaque. Pambuyo pa kusintha kwa amorphous mawonekedwe PTFE akuyamba momasuka popereka kuwala. Pankhaniyi, nkhani si viscous ndi kwambiri zotanuka. Pamene usavutike 415 madigiri C ndi pamwamba ndondomeko yake kuwonongeka akuyamba. Kuti ndi viscous Teflon sizichitika pa kutentha kulikonse.

Amakhudza kupanga ndondomeko luso magawo ake. Polyacetal (Standard specifications imalongosola molondola pazipita) sangathe ntchito kwa processing ndi njira ochiritsira kwa mapulasitiki. Mwachitsanzo, mankhwala chopangidwa therefrom ndi akamaumba jekeseni kapena extrusion zosatheka. Wobala mbali ndi mbali anapangidwa kuchokera nkhaniyi ndi sintering luso pogwiritsa ntchito "miyala" tikaumbike pa otsika kutentha.

katundu mankhwala

Fluoroplastic-4 ndi mankhwala mankhwala khola. Zinthu zimenezi si kupasuka ngakhale mu zinthu ankakwiya - zidulo kuchepetsedwa ndi amphamvu. Alibe mphamvu iliyonse pa iye ndipo ankaganiza njira zamchere.

Chinthu chokha chimene icho salola kukhudzana - ndi njira ya soda zitsulo mu ammonia ndi elemental fluorine ndi chlorine trifluoride. Kumaonetsa zotsatira za mankhwala awa pa kutentha m'mwamba.

chiŵerengero kuwonjezeka

Pa chizindikiro ichi Teflon F4 makhalidwe komanso ndinu wamkulu. Komabe, koyefishienti ake kuwonjezeka zimasiyanasiyana ndi kutentha. Monga tikuonera tebulo.

recrystallization

Monga tanenera kale, mmodzi wa zovuta ndi wogwidwa ndi PTFE (amene specifications zabwino zambiri), digiri mokwanira mkulu wa otaya ozizira. Zochita izi zimabweretsa kusintha mawonekedwe a mankhwala anapanga therefrom pa kuthamanga okwera. Ngati iwo ntchito pa kutentha osati kwambiri - kuchokera 80 mpaka 100 madigiri C, limene katundu sayenera oposa 10 makilogalamu / mamita ^2. Pa kuthamanga apamwamba pa mankhwala adzatsala kuonekera mapindikidwe. Ndi kukula kutentha ayenera kuchepetsedwa ndi katundu.

Ngati kufinya amphamvu (100-200 makilogalamu / mamita ²⁾ chitsanzo zopangidwa polytetrafluorethylene, akhoza wosweka mu mbale ndi kucheperachepera makulidwe 3-5 nthawi malingana kutentha. Pamene mapindikidwe cha chuma zambiri sizichitika izo akulimbana ndipo palibe kuvulala ena.

Mu tebulo pansipa wina akhoza kuona zinthu chikutanthauza fluoroplastic specifications (psinjika pansi katundu zina).

Fotoroplast ingagwiritsidwe magawo kupanga ntchito, ndi pa makilogalamu kuposa 30 / mamita ² kuthamanga. Komabe, mu nkhani iyi yomanga Kumuyika wa mfundo mu mankhwala ayenera kukhala wandiweyani. Iwo saloledwa kukhalapo mu izo wa cavities kapena mipata kwambiri. Mu nkhani iyi, fluoroplastic amangokhala zidzasowa kuthawa. Teflon zakuthupi - osati kwambiri zotanuka. Choncho, pofuna kukwaniritsa phuma snug, izo anawonjezera kupanga mphira. Nthawi zina mphambano mfundo komanso ntchito compensators wapadera masika.

specifications luso: Fluoroplastic

Kupanga PTFE-4 mokakamiza kumvera malamulo a GOST 10007-80. Tebulo chotsatirachi chikusonyeza zofunika katundu physico-mankhwala nkhaniyi.

Apa ndi wodabwitsa Teflon-4 specifications. The katundu wa nkhaniyi kulola ntchito kupanga mbali wapamwamba kwambiri.

Brand PTFE-4

Monga tanenera kale, polytetrafluoroethylene - wotchuka kwambiri mawonekedwe a mtundu wa ma polima. Panopa umabala zopangidwa angapo PTFE-4:

• F-4PN. Ntchito kupanga kudalirika mkulu.
• 4D-F. Ntchito kupanga mankhwala ambiri cholinga.
• F-4D. Wa PTFE chimachititsa mtundu woonda-mipanda chubu, kutchinjiriza kwa zingwe, hoses ndi tepi Fum.
• F-4D. zakuthupi manufacturable kwambiri ntchito kupanga enieni kukula.

Teflon pepala

Zamgululi wa mtundu uwu kwambiri mu ankafuna makampani ano. Kwa kupanga zokutira zitsulo, odana ndi mikangano ndi kusindikiza mankhwala ndi polima zabwino kwambiri monga Teflon, makhalidwe. Baibulo Leaf wa luso lake kupanga zimagawidwa m'magulu:

• chizindikiro zinthu "C" (sliced);
• chizindikiro "P" (mbamuikha).

Sale a masikono ngati fluoroplastic popanda koyilo. wochindikala Amayesetsanso ndi boma muyezo ndipo, malingana ndi m'lifupi kungakhale 2-4 mm.

Teflon, amene thupi makhalidwe ndinu wamkulu - chuma masiku ano ntchito kupanga zosiyanasiyana mbali ndi mbali. Poyerekeza ndi mapulasitiki ochiritsira ali zambiri za ubwino. Onse PTFE ndi nkhani yakeyo, polingalira zofunika high quality, ayenera kukhala mogwirizana ndi GOST.