Ukusetyenziswa kwelaphu le-pre-oxygenated filament non-woven

I-Polyacrylonitrile Fiber Nonwoven e-pre-oxidized (efinyeziweyo njenge-PAN i-fiber e-oxidized pre-oxidized nonwoven) lilaphu elisebenzayo elingasebenziyo elenziwe kwi-polyacrylonitrile (PAN) ngokujikeleza kunye nonyango lwangaphambili lwe-oxidation. Ezona mpawu ziphambili zibandakanya ukumelana nobushushu obuphezulu, ukunganyangeki kwedangatye, ukuxhathisa kwi-corrosion kunye namandla athile omatshini. Ngaphezu koko, ayinyibiliki okanye ithontsize kumaqondo obushushu aphezulu kodwa kuphela i-carbonizes kancinci. Ke ngoko, isetyenziswa ngokubanzi kwiimeko ezineemfuno eziphezulu kakhulu zokhuseleko kunye nokumelana nemozulu. Oku kulandelayo kubonelela ngengcaciso eneenkcukacha kwiinkalo ezininzi zezicelo ezingundoqo, eziquka iimeko zesicelo, imisebenzi engundoqo, kunye neefom zemveliso:

1. Ukukhuselwa komlilo kunye nentsimi yokuhlangula ngokukhawuleza

Ukukhuselwa komlilo yenye yezona meko zingundoqo zesicelo se-filament ye-pre-oxygenated filament non-woven. Izakhiwo zayo zokunqanda amadangatye kunye nobushushu obuphezulu zinokuqinisekisa ngokuthe ngqo ukhuseleko lwabasebenzi. Iifom zesicelo eziphambili ziquka:

Umaleko ongaphakathi/ubushushu bobushushu bempahla ekhusela umlilo

Iisuti zomlilo kufuneka zihlangabezane neemfuneko ezimbini "zokubuyiswa komlilo" kunye "nokufudumala ukushisa" : umaleko wangaphandle udla ngokusebenzisa amalaphu anqanda amadangatye aphezulu-amandla afana ne-aramid, ngelixa umaleko wobushushu obuphakathi usebenzisa kakhulu i-filament pre-oxidized non-loven fabric. Inokugcina uzinzo kwisakhiwo kumaqondo obushushu aphezulu angama-200-300℃, ithintele ngokufanelekileyo ubushushu obukhazimlayo kunye nokuqhuba amadangatye, kwaye ithintele ulusu lwabacimi-mlilo ukuba lungatshi. Nangona xa ibonakaliswe kumadangatye avulekileyo, ayiyi kunyibilika okanye ithontsize (ngokungafaniyo nemicu yemichiza eqhelekileyo), ukunciphisa umngcipheko wokulimala kwesibini.

Phawula:Ubuninzi bomphezulu we-filament e-oxidized pre-oxidized non-woven (ngokuqhelekileyo i-30-100g/㎡) inokulungelelaniswa ngokwezinga lokukhusela. Iimveliso ezinobunzima obuphezulu bomphezulu zineziphumo ezingcono zokugquma ubushushu.

Izixhobo zokubaleka ngexesha likaxakeka

➤Ingubo yokubalekela umlilo: Izixhobo zokucima umlilo ngexesha likaxakeka zamakhaya, kudederhu lweevenkile, kwiindlela ezingaphantsi komhlaba nakwezinye iindawo. Yenziwe ngelaphu le-pre-oxygenated filament non-loven and glass fiber. Xa ibonakaliswe emlilweni, yenza ngokukhawuleza "i-flame-retardant barrier", egubungela umzimba womntu okanye ukugubungela izinto ezinokutsha ukuze zihlukanise i-oksijini kunye nokucima umlilo.

➤Imaski engatshiyo/imaski yobuso obuphefumlayo: Emlilweni, umsi uneegesi eziyityhefu ezininzi. Ilaphu le-pre-oxygenated filament non-loven linokusetyenziswa njengesiseko semathiriyeli yesihluzo somsi wemaski yobuso. Isakhiwo sayo sokumelana nokushisa okuphezulu kunokuthintela izinto zokucoca ukuba zingaphumeleli kumaqondo aphezulu. Idityaniswe nekhabhoni esebenzayo, inokucoca amasuntswana anetyhefu.

2. Indawo yokhuselo lobushushu obuphezulu kwishishini

Kwiisetingi zemizi-mveliso, iimeko ezingqongileyo ezigqithisileyo ezinje ngamaqondo obushushu aphezulu, i-corrosion, kunye nokungqubana koomatshini zihlala zidibana. Ukumelana nemozulu ye-filament e-pre-oxygenated filament non-wovenwown inokusombulula iingxaki zomonakalo olula kunye nobomi obufutshane bezinto zemveli (ezifana nekotoni kunye nemicu yemichiza eqhelekileyo).

➤Isigqubuthelo kunye nokugcinwa kobushushu kwimibhobho yobushushu obuphezulu kunye nezixhobo

Imibhobho yobushushu obuphezulu kwimizi-mveliso yeekhemikhali, ezesinyithi kunye nombane (njengemibhobho yomphunga kunye ne-kiln flues) ifuna imathiriyeli yangaphandle yokugquma “ekwaziyo ukumelana nomlilo” kunye “ne-heat-insulating”. Ilaphu elingenawo i-oxygenated i-pre-oxygenated ingenziwa ibe yimiqulu okanye imikhono kwaye isongelwe ngokuthe ngqo kumphezulu wemibhobho. I-conductivity yayo ephantsi ye-thermal (malunga ne-0.03-0.05W / (m · K)) inokunciphisa ilahleko yobushushu kwaye ithintele umaleko wokugquma ekutshiseni kumaqondo obushushu aphezulu (izaleko zokugquma uboya bemveli ziqhelene nokufunxa ukufuma kwaye zivelise uthuli oluninzi, ngelixa i-filament ene-oxygenated pre-oxygenated ilaphu engalukiweyo ilula kwaye ayinathuli).

Imathiriyeli yesihluzo semizi-mveliso (ubushushu obuphezulu bokucoca irhasi yeflue)

Ubushushu begesi ye-flue ukusuka kwizityalo zokutshisa inkunkuma kunye neentsimbi zetsimbi zinokufikelela kwi-150-250 ℃, kwaye iqulethe iigesi ezine-acidic (ezifana ne-HCl, SO₂). Amalaphu okucoca aqhelekileyo (afana nepolyester, i-polypropylene) athanda ukuthamba kwaye adle. Ilaphu le-pre-oxygenated filament non-woven line-asidi eyomeleleyo kunye nokumelana ne-alkali kwaye inokwenziwa kwiingxowa zokucoca ukuhluza ngokuthe ngqo irhasi yobushushu obuphezulu. Ngaxeshanye, inomsebenzi othile wokugcina uthuli kwaye ihlala idityaniswa ne-PTFE (polytetrafluoroethylene) yokwaleka ukomeleza ukuxhathisa ukudleka.

➤Igasket ekhuselayo yomatshini

Phakathi kweegobolondo zangaphandle kunye nezixhobo zangaphakathi zezixhobo eziphezulu zokushisa ezifana neenjini kunye neebhoyili, izinto ze-gasket ziyadingeka ukuze zihlukanise ukuxubha kunye nokushisa okuphezulu. Ilaphu elingalukwanga langaphambili li-oxygenated linokwenziwa libe yigaskets ezinesitampu. Ukumelana kwayo nobushushu obuphezulu (ubushushu bexesha elide lokusebenza ≤280℃) kunokuthintela i-gaskets ukuba ingagugi kwaye ikhubazeke ngexesha lokusebenza kwesixhobo, kwaye kwangaxeshanye i-buffer friction mechanical.

3. Imimandla yoMbane kunye naMandla amatsha

Iimveliso zamandla ze-elektroniki kunye namatsha zineemfuno eziqinileyo "zokutshatyalaliswa komlilo" kunye "ne-insulation" yezinto eziphathekayo. Ilaphu elingenawo umoya-mpilo elingenawo umoya-mpilo lingalukwanga lingathatha indawo yezinye izinto zemveli ezibuyiswa lidangatye (ezifana nomqhaphu obuyisela idangatye kunye nelaphu lefibre yeglasi)

➤Isahluli esingalindiyo/isigqubuthelo sobushushu kwiibhetri ze-lithium

Iibhetri zeLithium (ingakumbi iibhetri zamandla) ziqhelene “ne-thermal runaway” xa itshajiswe kakhulu okanye imfutshane, iqondo lobushushu linyuke ngesiquphe ngaphezu kwe-300℃. I-filament e-pre-oxygenated filament non-woven fabric ingasetyenziselwa "i-separator yokhuseleko" kwiibhetri ze-lithium, i-sandiled phakathi kwe-electrode efanelekileyo kunye ne-negative: ineempawu ezithile zokugquma ngexesha lokusebenza okuqhelekileyo ukukhusela imijikelezo emfutshane phakathi kwee-electrode ezintle kunye ezimbi. Xa i-thermal ibaleka, ayinyibiliki, inokugcina ingqibelelo yesakhiwo, ukulibazisa ukusasazwa kobushushu, kunye nokunciphisa umngcipheko womlilo kunye nokudubula. Ukongeza, ingaphakathi le-casing ye-bettery pack isebenzisa ilaphu le-pre-oxygenated filament non-woven njenge-pad yokukhusela ukukhusela ubushushu phakathi kweeseli zebhetri kunye ne-casing.

➤Izinto ezigqumayo zokupakishwa kwecandelo lombane

Ukupakishwa kwamacandelo e-elektroniki afana neebhodi zeesekethe kunye nee-transformers kufuneka zifakwe i-insulated kunye ne-flame-retardant. Ilaphu le-pre-oxygenated filament non-lukiweyo lingenziwa libe licwecwe (10-20g/㎡) lamaphepha akhuselayo kwaye abambelele kumphezulu wamacandelo. Ukumelana nokushisa kwayo okuphezulu kunokulungelelanisa ukufudumeza kwendawo ngexesha lokusebenza kwezixhobo zombane (ezifana nokushisa okusebenzayo kwe-transformer ≤180℃), kwaye ngexesha elifanayo ukuhlangabezana ne-UL94 V-0 i-flame retardant standard ukukhusela imijikelezo emfutshane kunye nomlilo wamacandelo.

4. Eminye imimandla ekhethekileyo

Ukongeza kwezi meko ziphambili zikhankanywe ngasentla, ilaphu le-pre-oxygenated filament non-loven lidlala indima kwezinye iindawo ezikhethekileyo kunye ne-niche:

➤Isiphekepheke: Izixhobo ezidityanisiweyo ezinobushushu obuphezulu ezikwaziyo ukumelana nobushushu

Izinto eziyintlanganisela ezinobunzima obukhaphukhaphu kunye nobushushu obuphezulu ziyafuneka kumagumbi eenjini eenqwelo-moya kunye neenkqubo zokhuselo lobushushu kwiziphekepheke. I-filament e-oxidized i-pre-oxidized fabric non-woven ingasetyenziswa njenge "preform", idibaniswe ne-resin (njenge-phenolic resin) ukwenza izinto ezidibeneyo. Emva kwe-carbonization, ingenziwa ngakumbi kwi-carbon fiber composite materials, ezisetyenziswa kwizinto ezinobushushu obuphezulu be-spacecraft (ezifana neempumlo zempumlo kunye neencam ezihamba phambili zamaphiko) ukumelana nokukhukuliseka kwegesi ephezulu yobushushu obuhamba ngaphezu kwe-500 ℃.

➤Ukhuseleko lokusingqongileyo: Izixhobo zokucoca inkunkuma eqinileyo kubushushu obuphezulu

Kunyango lweentsalela zobushushu obuphezulu (kunye nobushushu obumalunga ne-200-300℃) emva kokutshiswa kwenkunkuma yonyango kunye nenkunkuma enobungozi, izinto zokucoca ziyafuneka ukwahlula iintsalela kwirhasi. Ilaphu elingalukwanga elaphulwe ngaphambili elineoksijini linokumelana nokugqwala okuqinileyo kwaye linokwenziwa kwiingxowa zokucoca ukucoca iintsalela zobushushu obuphezulu, ukuthintela imathiriyeli yokucoca ekubeni idleke kwaye isilele. Kwangaxeshanye, ipropathi yayo yokunqanda amadangatye ikhusela izinto ezinokutsha kwintsalela ekutshiseni izinto zokucoca.

➤Izixhobo ezikhuselayo: Izixhobo zesuti zokusebenza ezizodwa

Ukongeza kwiisuti zokulwa nomlilo, iimpahla zokusebenza zemisebenzi ekhethekileyo efana ne-metallurgy, i-welding, kunye nemizi-mveliso yeekhemikhali iphinda isebenzise ilaphu le-oxygenated filament engalukwanga njengelaphu kwiindawo ezigugile ngokulula ezinje ngee-cuffs kunye ne-necklines ukunyusa ukunqanda komlilo wendawo kunye nokunganyangeki, kunye nokuthintela iintlantsi ekutshiseni iimpahla ngexesha lokusebenza.

Ukuqukumbela, undoqo wosetyenziso lweI-filament ene-oxygenated yangaphambili ilaphu elingalukwangailele ekuthembeleni kwiimpawu zayo ezingundoqo "zokutshatyalaliswa kwedangatye + ukuchasana nobushushu obuphezulu" ukujongana neengozi zokhuseleko okanye iintsilelo zokusebenza kwezinto zemveli kwiindawo ezigqithiseleyo. Ngokuphuculwa kwemigangatho yokhuseleko kumashishini afana namandla amatsha kunye nokuveliswa okuphezulu, iimeko zokusetyenziswa kwayo ziya kwandisa ngakumbi kwiinkalo eziphuculweyo kunye nexabiso eliphezulu (ezifana nokukhuselwa kwamacandelo e-microelectronic kunye ne-insulation of flexible energy storage devices, njl.).