Ukwaleka okungalinganiyo kwe-PTFE kukhokelela kwimivumbo, kwimingxunya, ukutyheli, okanye ukungahambelani kokungabambekiyo kokusebenza. Ukusetyenziswa okunje ngamabhanti okutywina ubushushu, amabhanti okuhambisa, kunye neelitha zokukhulula, ukufana kokwambathisa kuchaphazela ngqo umgangatho wemveliso kunye nobomi benkonzo.
Yintoni ebangela ukugquma okungalinganiyo? Impendulo igubungela iindawo ezine: ukwakheka kokwambathisa, ukugquma & nenkqubo ye-sintering, umgangatho we-substrate, kunye nokusingqongileyo kwemveliso.
I-Aokai PTFE ilungiselele ezi zinto kumawakawaka okuqhuba imveliso. Eli nqaku lichaza into nganye kunye nendlela yokulawula umgangatho ophezulu, iyunifomu Ilaphu eligqunywe nge-PTFE.
Ukuqulunqa iParameter |
Uluhlu olufanelekileyo / imfuneko |
Isizathu Sokuba Kubalulekile |
Ubungakanani bamasuntswana e-PTFE |
0.15 - 0.35 μm (D50) |
Ukusasazwa okubanzi ngokugqithisileyo kuphazamisa ukungena kwe-substrate kunye nokusebenza kwefilimu |
Ubunzima bemolekyuli kunye ne-viscosity |
I-Balanced - ingabi phezulu kakhulu okanye iphantsi kakhulu |
I-viscosity ye-slurry engaqhelekanga ithintela ngokuthe ngqo ukusasazeka |
Umxholo oqinileyo |
60±2% (isiqhelo sokukhulelwa) |
Izinto eziqinileyo eziphezulu ngokugqithisileyo zibangela ukushwabana okungalinganiyo ngexesha lokomisa |
Ukusasazeka |
Akukho agglomeration |
I-dispersibility engalunganga ikhokelela kumaqela amasuntswana asekuhlaleni kunye neziphene zokugquma |
Isiqulatho sesihluzi (umzekelo, umgubo weceramic) |
Iyahambelana, ihlakazwe kakuhle |
Itshintsha imeko yomphezulu wemicroscopic; isigcwalisi esingahambelaniyo sibangela ukuguquguquka kobuninzi |
Ingcebiso esebenzayo: Hlala uvavanya ibhetshi nganye ye-PTFE emulsion yokusabalalisa ubungakanani besuntswana kunye ne-viscosity ngaphambi kokuveliswa. Utshintsho lwe-10% kwi-viscosity lunokutshintsha i-coating pickup nge-5-8%.
Ubudlelwane phakathi kobungakanani bamasuntswana e-PTFE kunye nokufana kokwaleka kuhlala kujongelwa phantsi. I-emulsions ene-D50 engaphantsi kwe-0.12 μm ihamba ngokulula kakhulu, ibangela ukubunjwa kwe-bead edge (i-coating ebanzi emaphethelweni) ngexesha lokumisa. I-Emulsions ene-D50 ngaphezu kwe-0.4 μm ingena kwi-fiberglass ngokungalunganga, okukhokelela kwi-porosity yomhlaba kunye ne-fiber encapsulation ebuthathaka. Uluhlu olufanelekileyo (0.18-0.22 μm) lubonelela ngokungena kakuhle kunye nokwakheka kwefilimu egudileyo. Enye into ebaluleke kakhulu sisiqulatho se-surfactant-i-surfactant eninzi ibangela ukuba kubekho amagwebu ngexesha lediphu yokugquma, yenze amaqamza omoya agqabhukileyo kwaye ashiye imingxuma. I-surfactant encinci kakhulu ikhokelela kwi-particle agglomeration kunye 'namehlo entlanzi' kwi-coating yokugqibela. Ukufana okufanayo, sebenza kunye nomthengisi we-emulsion omnye kwaye ucele izatifikethi zebhetshi ezibonisa i-D50, i-D90, kunye nepesenti ye-surfactant.
I-Aokai PTFE isebenzisa kuphela i-emulsion ye-PTFE elawulwa ngokuqinileyo ukusabalalisa ubungakanani be-particle (D50 0.18-0.22 μm, D90 <0.35 μm). Oku kuqinisekisa ukungena okungaguqukiyo kunye nokugqitywa komphezulu ogudileyo kwibhetshi nganye yelaphu.
1. Uthelekiso lweNdlela yoKwaleka
Indlela |
Umgaqo |
Umgangatho ofanayo |
IiPros |
Ububi |
Dip ukutyabeka |
I-substrate idlula kwi-emulsion bath |
Phakathi |
Ukumanzisa kakuhle ngokubanzi, i-fiber encapsulation |
Imivimbo yobude, imiphetho etyebileyo, iziko elibhityileyo |
Ukwaleka ngeblade |
Precision ugqirha blade iimitha zokwaleka |
Okukhethiweyo - ukufana okuphezulu |
Ityabeka egudileyo, eshinyeneyo, akukho mingxunya/imigca |
Ubuthathaka kwi-substrate flatness |
Ukutshiza ukutyabeka |
Ukusetyenziswa kwe-atomized spray |
Ubuhlwempu |
Ilungile kwiimilo ezingaqhelekanga |
I-Parameter-sensitive (umgama, uxinzelelo), ayifanelekanga kwimveliso yobuninzi |
Eyona ndlela isebenzayo kushishino: Inkqubo edibeneyo - idiphu yokwaleka + i-blade coating - yamkelwe ngokubanzi. Oku kudibanisa ukumanzisa okuphezulu okungaphezulu kokugquma kwediphu kunye nokugqwesa komphezulu othe tyaba wokugquma ngencakuba, ukomelela kokuqina kwefiber encapsulation kunye nokuchaneka komphezulu.
2. Ukomisa kunye neSintering Conditions
Ipharamitha |
Impembelelo kwiUniformity |
Ukomisa izinga |
Ukomisa ngokungalingani (ngokukhawuleza kakhulu okanye ukucotha kakhulu) kubangela ukutyeba kwefilimu okungahambelaniyo, ukuqhekeka, okanye ukushwabana kwamanqaku. |
Sintering lobushushu |
I-PTFE kufuneka inyibilike ibe yifilimu eqhubekayo kwi- 360-420 ° C. Ubushushu obungalinganiyo bukhokelela ekunyibilikeni okungahambelaniyo kunye nomgangatho |
Ubude bexesha |
Ixesha elingonelanga → ukwenziwa kwefilimu okungaphelelanga; ixesha elininzi → ukutyheli okanye ukuthotywa kobushushu |
Ubushushu obufanayo kwi-oveni yonke |
Amabala asekuhlaleni ashushu/abandayo abangela ukutenxa kombala (umzekelo, ukuba tyheli kwezinye iindawo) |
Inkqubo edibeneyo yediphu + i-blade ngumgangatho woshishino wempahla ye-PTFE ephezulu yobushushu obuphezulu. Nasi isizathu: idiphu yokwaleka iyodwa ivelisa 'impembelelo ye-meniscus' - i-coating ijiyile emaphethelweni kwaye incinci embindini ngenxa yokuxinana komphezulu we-emulsion njengoko ilaphu liphuma ebhafini. Olu tshintsho oluphakathi ukuya kumbindi lunokuba yi-15-20% yobukhulu obupheleleyo. I-Blade yokugqoka yodwa, ngelixa ivelisa indawo ethe tyaba, ilwa nokungena - i-PTFE ihlala phezu komhlaba ngaphandle kokugubungela ngokupheleleyo imicu ye-fiberglass, ekhokelela ekunganyangekiyo kwe-abrasion. Inkqubo edibeneyo: idiphu yokungena, emva koko udlule ngokukhawuleza phantsi kwe-blade ugqirha ukususa ukugqithisa kunye nomgangatho ophezulu. Ukufumana iziphumo ezichanekileyo, i-gap ye-blade kufuneka imiselwe kwi-120-150% yobunzima bokugqibela obunqwenelekayo bokugquma, ukubala ukushwabana ngexesha lokumisa. Ubushushu beprofayili kwi-oven yokutshiza kwakhona bubalulekile - i-10 ° C gradient kububanzi bunokubangela imigca ebonakalayo.
Umba |
Impembelelo kwi-Coating Uniformity |
Ipateni yokuluka |
I-Plain weave: ukuthungwa okuqinileyo, ukuzinza okuhle kwe-dimensional, ukungakwazi ukungena kakuhle. I-Satin weave: isakhiwo esikhululekile, ukungena okuphezulu, ukunamathela okuphezulu. Twill: phakathi. Umahluko we-weave ingxinano ichaphazela ngqo ukungena kwe-emulsion. |
Izinto ezingcolisa umphezulu |
Intsalela yeparafini, izithambiso zokuzoba/ukulukwa zithintela kakhulu ukusasazeka kwe-PTFE kwaye kubangele iziphene zokugquma. |
Uburhabaxa bomphezulu |
Uburhabaxa obungahambelaniyo bubangela ukufumba okungaqhelekanga kokwaleka (ukutyeba kwiindawo ezirhabaxa, ezibhityileyo kwiindawo ezigudileyo) |
Ingcebiso: Kwizicelo ezikumgangatho ophezulu (umzekelo, iiteyiphu zokutywina ubushushu), sebenzisa ilaphu le -satin weave fiberglass enokucoca ubushushu ukususa zonke iintsalela zezinto eziphilayo phambi kokugquma kwe-PTFE.
Umba wokusiNgqongileyo |
Imeko eNgcono |
Ngoba |
Ubushushu |
20-25°C |
Ubushushu obungafanelekanga budodobalisa ukusebenza komgangatho wokugquma |
Ubuntu bezizalwane |
<60% (efanelekileyo: 40-55%) |
Ukufuma okuphezulu kubangela ukuxinana kwamanzi kwi-emulsion, ekhokelela kwiipinholes |
Ucoceko lomoya |
Ukuhluzwa okungathuli (HEPA kuyacetyiswa) |
Uthuli olusemoyeni lufakwe kwi-coating, lwenza iziphene zomhlaba |
Ukuhamba komoya |
Ilawulwa, akukho uyilo oluthe ngqo |
Umoya ongalinganiyo ubangela amanqanaba okoma angaqhelekanga kububanzi belaphu |
Inqaku elisebenzayo: Ngexesha lemvula okanye iintsuku zokufuma okuphezulu, cinga ngokuqhuba i-dehumidifier kwigumbi lokugquma. Ukufuma okungaphezulu kwe-70% kwandisa kakhulu iziphene zemingxuma.
Isishwankathelo - Ukuyidibanisa yonke into
Umba |
Eyona ndawo ibalulekileyo yoLawulo |
Ixabiso elifanelekileyo / Uluhlu |
Ukuqulunqwa |
Ukuhanjiswa kobungakanani besuntswana |
D50 0.18-0.22 μm, D90 <0.35 μm |
Ukuqulunqwa |
Umxholo oqinileyo |
60±2% |
Inkqubo |
Indlela yokwaleka |
Dip + blade idibene |
Inkqubo |
Sintering lobushushu ukufana |
±5°C ngapha kobubanzi be-oveni |
ISubstrate |
Ipateni yokuluka |
I-Satin iluke kwii-apps ezifanayo-ezibalulekileyo |
ISubstrate |
Unyango lwangaphambili |
Ukucocwa kobushushu, akukho ntsalela |
Okusingqongileyo |
Ubushushu kunye nokufuma |
20-25°C, RH <60% |
Isishwankathelo , ukunxiba ukufana kwelaphu le-PTFE lobushushu obuphezulu kuxhomekeke kwizinto ezine ezidityanisiweyo. Ukuqulunqwa kwe-Coating (ubungakanani be-particle, viscosity, umxholo oqinileyo) yimbangela yengcambu. Inkqubo yokwaleka kunye ne-sintering - ngakumbi ukusebenzisa idiphu + i-blade edibeneyo - yinqanaba eliqinisekileyo. Umgangatho we-substrate kunye nonyango lwangaphambili lubonelela ngesiseko. Ubume bemveliso buqinisekisa ukuhambelana.
Kwizicelo ezifuna ukufana okuphezulu (umzekelo, iiteyiphu zokutywina ubushushu, iilitha zokukhulula iimveliso ezincangathi), inkqubo yediphu + incakuba yinkqubo yegolide yoshishino. Ukubeka iliso kwipharamitha nganye rhoqo, gcina iimeko zokusingqongileyo zizinzile, kwaye uvavanye i-emulsions engenayo yokusabalalisa ubungakanani besuntswana.
Ngaba ufuna uncedo ekufezekiseni ukufana kokugquma kwelaphu lakho le-PTFE? I-Aokai PTFE inikezela ngeenkonzo zokugquma ngokwesiko kunye nenkqubo yokubonisana. Qhagamshelana nathi neenkcukacha zakho ekujoliswe kuzo kunye nomthamo wemveliso.
Lo mxholo ungentla unikwe ngu I-Jiangsu Aokai yeZixhobo eziNtsha zeTekhnoloji Co., Ltd.
Ukuba ungathanda ukwazi ngakumbi malunga neenkcukacha ezineenkcukacha, iimeko zesicelo, kunye nezisombululo ezilungiselelwe uluhlu lwethu olupheleleyo lweemveliso, kubandakanya amalaphu e-PTFE anobushushu obuphezulu, iiteyiphu ze-PTFE ezinobushushu obuphezulu, amabhanti e-mesh anobushushu obuphezulu be-PTFE, amabhanti omatshini wokufunxa angenamthungo, amalaphu e-PTFE asecaleni elinye, i-fiberglass ekwazi ukumelana nobushushu obuphezulu kunye nobushushu obuphezulu. , nceda uqhagamshelane nathi:
Ukubambelela kwinkonzo yenkonzo yobungcali kunye nemfezeko, sizinikele ekuboneleleni ngezisombululo zokuphela konyaka kunye neenkonzo ezinolwazelelelo kubo bonke abathengi.
