Raw material kuchena ndiyo hwaro hwakakosha hwePTFE yakakwirira-tembiricha machira mhando. Kusachena (zvakasara zvekutanga, ma surfactants, maion simbi, ane tsvina ekuyera maajenti) anokonzeresa kushatisa nguva isati yakwana (mafuru, kuturuka pamusoro pe260°C), kusaenzana kusiri danda (adhesion anchor points), kudzikiswa kwemagetsi (dielectric loss, low breakdown voltage), kuderera kwesimba remagetsi (stressing yellow/stress). Yakakwirira-kuchena mbishi zvinhu inovimbisa FDA-inoenderana, hupenyu hurefu, yakakwirira-inoshanda PTFE jira.

PTFE-yakavharwa nefiberglass jira sintering inoda chaiyo kubata nguva pa370-400°C. Mavhiri anoenderera mberi: 30-90s (yakaonda) kusvika 3-5+ min (yakakora). Batch furnaces: 5-15 min. Under-sintering inokonzera opaque, rough coatings kuti peel; kunyanya-sintering kunokonzera kutsvuka, brittleness, uye muchetura fluoride gasi kusunungurwa. Maitiro ekugonesa: shandisa tembiricha yekutevera tembiricha, ita yekutarisa yekuona (semi-pachena, inochinjika), uye ita tepi kudhonza bvunzo. Nguva dzose iva nechokwadi chekuzara-kuzara kwekushisa kufanana.

PTFE high-temperature jira inoda kungwarira kubata kuti ive nechokwadi chekuchengetedza uye hupenyu hurefu. Chengetedzo yakakosha: usambopfuura 260°C (pamusoro pe320°C inoburitsa utsi hune muchetura), dzivirira kutsemuka (pakatsemuka kuvharwa, kufumura fiberglass), hapana kuchenesa (simbi inokuvadza nzvimbo isina tsvimbo), chengetedza kupisa kwekuwedzera clearance (inodzivirira kubvaruka), uye kutsiva kana yaputika kana kusvunurwa. Chitoro chakakungurutswa, kure neUV. Pfeka magirovhosi anodzivirira kupisa panguva yekubata.

PTFE high-temperature jira ine coefficient of thermal expansion (CTE) ye 30-60 ppm/°C (warp/weft) - yakakwirira kudarika fiberglass chete asi yakaderera zvikuru pane yakachena PTFE (100-200 ppm/°C). PTFE inongoerekana yachinja vhoriyamu (1-2%) pa19°C uye 30°C shanduko yechikamu. Kuti udzivise kuputika, kubvarura, uye delamination: dhizaini yedhizaini yekuwedzera mahara, dzivirira kushushikana kuburikidza nechikamu chekuchinja tembiricha, shandisa otomatiki tensioner pamabhandi ekutakura, uye shandisa anti-buckling overlap dhizaini. Kugara uchiongorora kutonhora kuyerera kwakakosha.

PTFE high-temperature machira ekubikisa mabheti anopa mana akakosha mabhenefiti: kusashanda kwetsvimbo (hapana mafuta kana hupfu hunodiwa, mabheki akapfava anoburitswa zvakachena), tembiricha yakakura (-70 ° C kusvika 260 ° C, yakachengeteka muhovhoni kusvika mufiriji), kushandiswazve (zviuru zvemajini, zviri nyore kuchenesa), uye kunyange kupisa conduction (kunodzivirira kupisa, kudzikamisa brown). Chikafu-giredhi FDA inoenderana, ivo vanobuda kunze bepa rematehwe uye kupfuura e-silicone mats ane zvirinani kutamisa kupisa uye kunaka kwepamusoro magadzirirwo.

PTFE high-temperature jira yakakosha muindasitiri yenguo interlining. Zvishandiso zvakakosha: mabhandi asingagumi ekutakura mabhandi ekuenderera mberi kusanganisa michina (inodzivirira inopisa inonyunguduka inonamatira, isina kuunyana kutakura), isina-tsvimbo yekuvharira uye jira repadhi remashina ekupisa (anodzivirira maplatens kubva pakusvibiswa kweanonamatira), mabhandi ekutakura e dot paste/powder coating inlines kuomesa/kunyungudutsa), uye mavhavha eshangu dzesimbi yekutsikirira muenzaniso. Hukobvu hunotangira pa 0.13mm (light padding) kusvika 0.55mm (heavy-duty conveyor belts).

Anti-static PTFE jira rinowanikwa nenzira mbiri huru: kupfekedza doping (kusanganisa conductive mafirita senge kabhoni dema muPTFE emulsion, kugadzira percolation network panguva yakaoma concentration) uye substrate weaving (kupinza conductive fibers mu fiberglass jira). Surface resistivity inodzorwa pa10⁵–10⁹ Ω. Iyo musimboti: gadzira iyo conductive nzira inodonhedza static charges ipapo, kudzivirira kuunganidzwa kune njodzi. Grounding inosungirwa kuti ishande inoshanda.

PTFE high-temperature fabric (PTFE-coated fiberglass) inopa yakasarudzika makemikari kuramba, withstanding concentrated acids (kusanganisira aqua regia), alkali yakasimba (pakamuri tembiricha), organic zvinonyungudutsa, uye oxidizing agents. Kunze kwe: simbi yakanyungudutswa yealkali uye yakakwirira-tembiricha halogen makomisheni anorwisa PTFE. Kukuvadzwa kwekuputira kunofumura fiberglass kune hydrofluoric acid uye inopisa yakadzika alkalis. Tembiricha iri pamusoro pe260°C inoderedza kuramba. Kune akawanda emakemikari nharaunda, PTFE jira rinoramba rakagadzikana uye rakavimbika.

Kuomesa inhanho yakakosha muPTFE yakakwirira-tembiricha yekugadzira machira. Zvikanganiso zvakajairika zvinosanganisira: kutsemuka (kunyanya kuomesa, kuomeswa kwepamusoro), kubhururuka kutama (zvimedu zvinofamba kumusoro, hukama hwemukati husina simba), pinholes / blisters (mhepo yakavharirwa kana mhepo), mavara machena uye chalking (kusimuka kwesurfactant kana kusakwana kusanganiswa), kutsvuka / kubikira (kupisa kwezvinowedzera), delamination (kudonha kana kunyungudika kweorenji) shrinkage), pasi pakaoma asi mukati memvura (kusvuura mateya unyoro), uye mipendero yakakora (kofi-ring effect). Mhinduro dzinosanganisira kudzora kuomesa profiles, kufefetedza kwakaringana, uye substrate pretreatment.

PTFE emulsion impregnation yemucheka wefiberglass inoda vabatsiri vakasiyana-siyana kuti vakwanise kupfekedza yunifomu, kunamatira kwakasimba, uye nzvimbo dzisina kukanganisa. Zvinowedzera zvekuwedzera zvinosanganisira: wetting agents (kuderedza kushushikana kwepasi, kunatsiridza kupinda), thickeners (control viscosity uye coating uremu), pH regulators (stabilize emulsion papH 9-10), silane coupling agents (kunamatirisa kune girazi), firimu-forming aids (PFA/FEP ye sintering), inoshanda mafirita (kupfeka mapikisi, maconductors ekudzivirira) (slow drying). Kusarudzwa kunoenderana ne substrate uye kuita zvinodiwa.