PTFE high-temperature jira insulating gaskets inobatanidza simba guru re dielectric (yakagadzikana pasi pehunyoro), -70 ° C kusvika 260 ° C tembiricha yakasiyana, universal chemical resistance (kunze kwesimbi alkali yakanyungudutswa), kwete-stick surface (inodzivirira creepage), anti-creep (fiberglass reinforcement vs. friction μ-501), high ten μ-50. V-0 murazvo chiyero. Kuenzaniswa ne mica, rabha, uye yakachena PTFE gaskets, PTFE jira rinopa kuchinjika kwepamusoro, kurongeka, uye kwenguva refu dimensional kugadzikana. Yakanakira ma transformer, mota insulation, kemikari flange yekuisa chisimbiso, uye semiconductor midziyo.

PTFE jira flatness panguva sintering inoda chaiyo tension, tembiricha, uye kuzvidzora kudzora. Nzira dzepakati: stenter machine (mapini epini anochengetedza upamhi, kudzivirira weft shrinkage), gradient tembiricha profile (inononoka kupisa → 380-400 ° C bata → inononoka kutonhora pazasi 310 ° C isati yaburitsa tension), pre-shrunk substrate (inobvisa kuruka kushushikana isati yapfekedzwa), uye yunifomu yekupfeka ukobvu (inodzivirira kunyungudika kwakasiyana). Stenter kuzvidzora kunofanirwa kuchengetedzwa kusvika kutonhora pasi pePTFE crystallization point (approx. 310 ° C) kudzivirira warpage.

PTFE high-temperature jira inogadzirwa kuburikidza ne-single-dip impregnation (imwe pass: inokurumidza, yakaderera-mutengo, yakaonda yakapfava, yakaoma pamusoro ine pinholes) kana yakawanda-dip impregnation (2-3+ inopfuura: yakatsetseka, dense, pinhole-isina coating, PTFE yemukati 50-70%, premium performance, mutengo wakakwira). Single-dip inokodzera yakaderera-giredhi gaskets, mameti echinguvana, uye zvinhu zvinofema. Multi-dip inodiwa kune chikafu-giredhi yekubikira mashiti, asiri-tsvimbo conveyor mabhandi, high-frequency circuit substrates, makemikari liner, uye architectural membranes.

PTFE yakakwirira-tembiricha jira pamusoro kurapwa inotyora kemikari inertness ye bonding/kudhinda. Nzira ina: kemikari etching (sodium-naphthalene, simba repamusoro 20→ 40-50 dyn/cm, rima risingaperi, micro-porous structure), kurapwa kweplasma (nano-roughening, kushanda kweboka rekubatanidza, hwindo pfupi rinoshanda), corona kurapwa (mutete-firimu, kuparara kwekukurumidza, kudzika zvishoma), uye laser kurapwa (chaiyo micro-pattering, controlled carbonization). Nzira dzese dzinoita roughen mumuviri uye nemakemikari dzinounza mapoka epolar (C=O, -OH, -COOH) kuti akwanise kunamira kubatana.

Raw material kuchena ndiyo hwaro hwakakosha hwePTFE yakakwirira-tembiricha machira mhando. Kusachena (zvakasara zvekutanga, ma surfactants, maion simbi, macontainated sizeng agents) anokonzera kushatisa nguva isati yakwana (mafuru, kuturuka kupfuura 260°C), kusaenzana kusiri kwetsvimbo (adhesion anchor points), kuderedzwa kwemagetsi ekuisa (dielectric loss, low breakdown voltage), kuderera kwesimba remagetsi (stressing yero/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 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.

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.