PTFE high-temperature jira
Kuomarara uku kunowanzo tungamira kumatambudziko asingatarisirwe: mabhandi ekutakurisa akasungwa, magasi akatsemuka, akaturikidzana, kana mabhandi ekuburitsa. Kunzwisisa uye kugadzira kwekuwedzera kwekupisa kwakakosha pakuita kwakavimbika kwenguva refu.
Aokai PTFE yakaongorora maitiro ekuwedzera kwemafuta pane akawanda maapplication. Gwaro iri rinotsanangura tsika dzeCTE dzakajairwa uye rinopa zvitanhatu zvinogadzirisa zvigadziriso kudzivirira kutadza kunoenderana nekuwedzera.
Yakajairika Coefficients yeThermal Kuwedzera - Ziva Nhamba Dzako
1. Yakachena PTFE reference CTE
Pure PTFE ine high linear coefficient of thermal expansion: ingangoita 10×10⁻⁵ – 20×10⁻⁵/°C (100–200 ppm/°C) patembiricha yekamuri, ine misiyano isiri-mutsara sekuchinja kwetembiricha.
Chinyorwa chakakosha: PTFE inopinda crystalline phase transitions kutenderedza 19 ° C uye 30 ° C , zvichiita kuti kungoerekana kushanduka kwevhoriyamu kwe1% -2% . Hunhu uhu hunoda kutariswa kwakakosha kune maapplications chaiwo. Iyo 1-mita yakareba yakachena PTFE firimu inogona kukura ne 1-2 cm nekungopfuura nemutembiricha yemumba.
2. PTFE high-temperature jira (fiberglass substrate) - inowanzoita CTE range
Fiberglass pachayo ine Ultra-yakaderera CTE ye approx. 5×10⁻⁶/°C (5 ppm/°C) , kushanda sechinhu chakaomarara kurambidza PTFE kuwedzera uye kuderedza zvakanyanya kudziya kwemukati-ndege kuwedzera kwejira rakapedzwa. Nekudaro, iyo yakarukwa chimiro ichiri kuguma nekuwedzera kwepamusoro pane plain fiberglass jira.
Direction
Yakajairika CTE
Value
Warp (kureba)
3×10⁻⁵ – 5×10⁻⁵/°C
30–50 ppm/°C
Weft (kuyambuka)
4×10⁻⁵ – 6×10⁻⁵/°C
40–60 ppm/°C
Kuwedzera pamwe negwara rekukobvu kunonyanya kukosha nekuda kwechikamu chepamusoro chePTFE resin. Nezvinangwa zveinjiniya, chete-mu-ndege dimensional shanduko ndiyo inowanzoiswa pamberi.
Dhizaina Zvimiro Zvekucheneswa zveThermal Elongation
1. Mahara ekuwedzera mipendero
Kana ichishandiswa semagaskets, thermal insulation mets, kana nzvimbo dzinotsvedza, dzivirira kuzara kuzere pamativi mana. Chengetedza kanenge kamwe chete kana maviri emahara epamipendero kuti ubvumire kusingadzivirirwe kupisa kutambanudza uye kudhonzwa.
2. Makomba anokwirisa akareba
Kana kusungirirwa kwebhaudhi kuchidikanwa, wedzera maburi kana kutora maburi akareba. Usanyatsosimbisa mabhaudhi; wedzera magaskets kuchengetedza diki sliding allowance. Izvi zvinobvumira izvo zvinyorwa kuti zviwedzere uye zvibvumirane pasina kushushikana kwekumanikidzwa pamabolt points.
3. Segmented kuisa
Kuti uise nzvimbo yakakura, patsanura jira kuita mapaneru akasiyana ane 3-5 mm majoini ekuwedzera pakati pezvidimbu, kunyanya pamwe nekureba. Izvi zvinodzivirira kusungirirana kubva pakuwedzera kwekuwedzera mukati menguva refu.
Dzivisa Kukurumidza Kupisa Kutenderera Kwemabhasikoro Pakati Pese Shanduko Yakakosha Tembiricha
PTFE inotambura nekuchinja kukuru kwevhoriyamu pedyo nekamuri tembiricha - kunyanya pa19 °C uye 30°C chikamu cheshanduko nzvimbo. Kana michina ichiwanzochinjana pakati pekutonhora kwekuchengetera uye tembiricha yepakati, usamanikidza jira rePTFE zvakanyanya.
Kana yaiswa pakadzika tembiricha asi ichishandiswa pasi pekupisa kwakanyanya, jira rinorebesa (semuenzaniso, jira remamita 1 rinotambanudza mamirimita akati wandei kana richipisa kubva pa25 ° C kusvika 200 ° C).
Shongedza tensioning magungano ane otomatiki muripo (spring-loaded kana counterweight masisitimu) pachinzvimbo chekiyi yakaoma.
Murau wakakosha: Usambofa wakamanikidza PTFE jira zvakasimba patembiricha yekamuri wobva waripisa - kuwedzera kunogadzira ripples. Usambofa wakaisimbisa zvakasimba pakupisa kwepamusoro uye wozoitonhodza - shrinkage ichabvarura kana kudzvinyirira zvinhu.
Anti-Buckling Dhizaini yeKupfuura uye Majoini
Pfekedzana pamwe negwara rekuwedzera , uye iva nechokwadi chekuti hupamhi hwepamusoro hunodarika iyo yakanyanya kufanotaurwa kurebesa.
Pamasonani , siya yakasununguka mvumo pakusona shinda. Kana yakasungwa nekunamira kwepamusoro-tembiricha, sarudza elastic glue kudzivirira kubvaruka kunokonzerwa nekusaenderana kwekuwedzera coefficients.
Kune akawanda-layer stacking , dzivisa yakazara-pamusoro bonding. Adopt nzvimbo yekubatanidza kana kupatsanura kugadzirisa nematanho ekudhinda kubvumidza interlayer kutsvedza - kubvisa mablistering uye delamination.
Kudzora Kudzora Kwemaitiro Ekushanda
1. Conveyor bhandi zvikumbiro
Isa counterweight kana chitubu-yakarodha otomatiki tensioner kuti utore kuzorora kwejira patembiricha yepamusoro uye shrinkage pakudziya kwakaderera. Usambofa wakasimbisa bhanhire pasi pekupisa kwakanyanya - izvi zvinokonzeresa kuwandisa panguva yekutonhora kwechando. Iko tension yebhandi inofanira kuiswa pane yakaderera inotarisirwa kushanda tembiricha.
2. Kusunungura liners uye mashizha ekuzviparadzanisa
Lay flat pasina pre-tension. Chengetedza zvishoma nekuzviremedza kana mitsetse yakamanikana mune imwechete nzira kudzivirira zvisingaperi creases zvinokonzerwa nekuwedzera kupisa.
Deredza Kukanganiswa kubva Kunyanya Tembiricha Gradients
Kuwedzera kusina kuenzana kunoitika kana rimwe divi rejira rakafumurwa nekupisa kukuru asi rimwe richiramba rakatonhorera, zvichikonzera hondo.
Kugadzirisa matanho:
Kurovera kwepakati nemafuremu pachinzvimbo chekuenderera kuzere-kumucheto kudzvanya
Sarudza gobvu, repamusoro-density fiberglass base jira kuderedza warpage
Pre-set reverse arching padivi rekudzika-tembiricha kana zvichidikanwa (pre-curve jira kuti riite flatte patembiricha yekushanda)
Periodic Inspection uye Maintenance
Mushure menguva yakareba yekupisa bhasikoro, PTFE inosangana nechando chinoyerera deformation , zvichikonzera kureba kwechigarire kana kuderera kwenzvimbo.
Gara uchiongorora uye kugadzirisa tension mazinga - mabhandi angangoda kudzokororwa mushure mekutanga mashoma ekudziya kutenderera.
Gadzirisa mabulges uye delamination nekukasira kuti udzivise kushushikana mupfungwa uye kubvaruka.
Gwaro rekuwedzera maitiro - kana bhandi richiramba rakatambanudzwa kupfuura gadziriso renji, ringada kutsiviwa kana imwe CTE-inofananidza substrate.
Kurudziro yeAokai PTFE: Pazvishandiso zvine bhasikoro rinopisa zvakanyanya (semuenzaniso, maconveyor eovheni achichovha bhasikoro kubva paari kusvika pa250°C kakawanda pazuva), tinokurudzira jira rine yakakwira fiberglass content (yepasi CTE) uye otomatiki tension monitoring.
Pfupiso - Thermal Kuwedzera Dhizaini Yekutarisa
Dambudziko
Root Chikonzero
Solution
Buckling (ripples)
Kuwedzerwa kwejira pasina nzvimbo yekukura
Mipendero yemahara, majoini ekuwedzera, akapatsanurwa kuisa
Kubvarura pa fasteners
Kumanikidzwa kuwedzera kushushikana
Maburi akaiswa, kwete mabhaudhi akazara
Delamination/blistering
Kuwedzera kusingaenderane pakati pezvikamu
Spot bonding, dzivisa kunamatira-yakazara pamusoro
Conveyor bhandi rakadzikama/rakasimba
Kuchinja-kunoenderana nekureba kwehurefu
Otomatiki tensioner (spring/counterweight)
Warping kubva gradient
Kusaenzana kuwedzera pamucheka
Kusunga kwepakati, pre-set reverse arching
Cold flow elongation
Kufamba kwenguva refu pasi pekunetsekana
Kugara uchiongorora uye kudzokorora zvakare
Aokai PTFE inopa PTFE yakakwirira-tembiricha machira ane akanyorwa CTE kukosha uye inogona kurumbidza chaiwo mamakisi echishandiso chako tembiricha renji. Bata isu kune technical data sheets uye application dhizaini rutsigiro.
Iri gwaro rehunyanzvi rinopihwa ne Jiangsu Aokai New Materials Technology Co., Ltd.
Kana iwe uchida zvakadzama tekinoroji parameters, application kesi uye customized mhinduro dzechigadzirwa yedu yakazara machira anosanganisira PTFE high-temperature tepi, PTFE high-temperature matepi, PTFE mesh mabhandi, seamless laminator mabhandi, single-sided PTFE jira uye yakakwirira-tembiricha inodzivirira inotakura mabhandi pazasi, ndapota taura nesu pazasi.
Isu tinonamatira kune hunyanzvi zviyero uye kutendeseka kuendesa imwe-yekumira zvinhu zvigadziriso uye kufunga-shure kwekutengesa rutsigiro kune vese vatengi.
