Kumacandelo afana nombane wabathengi, ukuveliswa kweemoto, izixhobo zangaphandle, kunye nezixhobo zonyango, ukulinganiswa kokhuseleko lwemveliso kuye kwaba luphawu olubalulekileyo lokusebenza. Phakathi kwezi, i-IP67{2}}umgangatho wokhuseleko owamkelwe ngokubanzi{4}}ufuna ukuba iimveliso zifikelele ekuxhathiseni uthuli ngokupheleleyo kunye nokhuseleko olufutshane lokuntywiliselwa emanzini. Ukuhlangabezana nalo mgangatho kuxhomekeke kwizixhobo zokutywina ezisebenza kakhulu. I-Silicone foam, kunye neempawu zayo ezizodwa ze-physicochemical, zivelele njengokhetho olufanelekileyo lokuphumeza ukhuseleko lwe-IP67.
一, Uhlalutyo lweNqanaba loKhuseleko lwe-IP67
Umlinganiselo we-IP (uKhuseleko lwe-Ingress), esekwe yiKhomishoni ye-Electrotechnical International (IEC 60529), ichaza amandla okukhusela okukhusela izixhobo zombane kwizinto eziqinileyo zangaphandle kunye nokungena kwamanzi.
Idijithi yokuqala "6": imele inqanaba eliphezulu lokukhusela uthuli, likhusela ngokupheleleyo uthuli ukuba lungene.
Inombolo yesibini "7": ibonisa ukuba inokuntywiliselwa ngokufutshane emanzini ukuya kuthi ga kwimitha e-1 ubunzulu (ngokuqhelekileyo yimizuzu engama-30) ngaphandle kokuchaphazeleka.
Ukufezekisa umlinganiselo we-IP67, imingeni emibini engundoqo kufuneka iqwalaselwe: ukufezekisa ukutywinwa okupheleleyo kwee-microscopic pores kunye nokubuyisela imilo yazo yokuqala phantsi koxinzelelo lwamanzi.
I-2, iiPropati zeNzululwazi zeSilicone Foam Materials
1. Izibonelelo zeMicrostructural
Izinto ze-Silicone ze-foam zenziwe ngenkqubo yekhemikhali okanye ye-foaming yomzimba, kunye nerubha ye-silicone njenge-matrix kwaye iqulethe iipores ezivaliweyo ngokufanayo.
Izinga le-pore elivaliweyo linokufikelela ngaphezu kwe-95%: isakhiwo esizimeleyo esivaliweyo se-pore sithintela ngokufanelekileyo indlela yokungena kwamanzi kunye negesi.
I-aperture elawulwayo: Ulungelelwaniso lwenkqubo luvumela uluhlu lokuvula lwe-50-500μm ukuhlangabezana neemfuno zokutywinwa ezahlukeneyo.
Isakhiwo sothungelwano esinemilinganiselo emithathu: Umqolo weSiloxane kunye namaqela asecaleni endalo enza inethiwekhi enwebekayo ukunika uzinzo.
2. Iimpawu eziphambili zepropathi
| Isalathiso sokuSebenza | Uluhlu oluqhelekileyo | Igalelo IP67 Performance |
| Izinga lokuguqulwa koxinzelelo | 5-20% (70℃×22h) | ixesha elide-elide lokubamba uxinzelelo lwezinga lotshintsho |
| Ireyithi yokubuyela kwakhona | Enkulu kuno okanye ilingana ne 90% | ngokuphindaphindiweyo ukuchithwa kunye nokuhlanganisana |
| Ukuxinana | 0.3-0.8g/cm*3 | Ibhalansi phakathi kobunzima kunye nokutywinwa |
| Izinga lokuvalwa kwe pore | Inkulu kuno okanye ilingana nama 95% | vala umjelo wolwelo wokungena |
| Ukuguqulwa kwamandla oxinzelelo | 0.02-0.2MPa (25% yoxinzelelo) | inikeza amandla okutywina okuqhubekayo |
3. Ukuziqhelanisa nokusingqongileyo
Ukunyamezela iqondo lobushushu: igcina i-elasticity ukusuka kwi-60℃ukuya kwi-200℃(izinto eziqhelekileyo zogwebu zithande ukuba brittle kumaqondo aphantsi)
Ukungangeni kweChemical: ukumelana ne-ozone, i-ultraviolet, i-acids ebuthathaka kunye ne-alkali ebuthathaka, kwaye unqande ukusilela kwetywina okubangelwa kukwaluphala ixesha elide.
Uguquko oluncinci olusisigxina: lunokubuyela kwimilo yangaphambili phantsi koxinzelelo lwexesha elide, kunqanda ukusilela kokutywina ngenxa yokuphumla koxinzelelo.
3,Indlela yobuNjineli yokuFanekisa ukutywinwa kwe-IP67
1. Indlela yokutywina ye-Interface Xa imathiriyeli ye-silicone yogwebu ixinzelelwe kwaye ifakwe phakathi kwendlu kunye nepleyiti yokugubungela:
Inkqubo yokutywina: 1. Uxinzelelo lokuqala (oluqhelekileyo ngama-25 -}40%) → Ukuguqulwa kwesakhiwo seqamza 2. Ukwandiswa kwendawo yoqhagamshelwano phakathi kweendonga zeqamza → Ukwenziwa kojongano oluqhubekayo lokutywina 3. Ukunyanzeliswa kwe-elastic recovery force → Imbuyekezo yokunyamezela imveliso kunye nokwandiswa/ukufinyela kwe-thermal 4.{{6}Ubume be-noneli phantsi kobume boxinzelelo 4.{6}Ubume be-noneli ngokulinganayo .
Imodeli yokumelana noxinzelelo lwamanzi phantsi kwe-1 m ubunzulu bamanzi (malunga ne-9.8kPa yoxinzelelo lwe-hydrostatic): amandla okubuyisela umzimba we-elastiki mkhulu kunoxinzelelo lwamanzi olungena amandla. Impembelelo yamandla omhlaba: amandla angaphezulu ejeli ye-silica (malunga ne-24 mN/m) angaphantsi koxinzelelo lwamanzi angaphezulu (72 mN/m), okwenza umqobo we-hydrophobic. Ibhalansi yoxinzelelo lwepore: uxinzelelo lwerhasi kwipore evaliweyo inokuphelisa ngokuyinxenye uxinzelelo lwamanzi lwangaphandle.
3. Uthuli{1}}ubungqina besixhobo Ukomelela: Lonke ixesha ugcwalisa umsantsa wokudityaniswa, ungashiyi uthuli lwetshaneli yokungena Umphezulu wokuncamathelisa: Umphezulu oncamathelayo we-silicone -unokurhweba amasuntswana amancinane Akukho kuchithwa kwefayibha: Ngokungafaniyo nefayibha{3}esekelwe kwimathiriyeli yokutywina, ayizivelisi{4}}izingcolisi.
4. Amanqaku aphambili kuYilo lweSicelo
1. Ukuhambelana koyilo lwesakhiwo
Ukubalwa komlinganiselo woxinzelelo: umlinganiselo ofanelekileyo woxinzelelo kufuneka ugqitywe ngokoxinzelelo loxinzelelo -ijiko lezinto.
Uyilo lwe-Groove: Ububanzi obucetyiswayo bu-10-15% bukhulu kunobubanzi bezinto eziphathekayo, kwaye ubunzulu buyi-20-30% encinci (ukudala ukunyanzeliswa okuphakathi).
Unyango lwekona: Sebenzisa i-extrusion eqhubekayo okanye ufe{0}}ukusika ukunqanda izithuba
2. Iikhrayitheriya zokukhethwa kwezinto
Imeko yesicelo Ukukhetha ukuxinana Uluhlu lokuqina Iimfuno ezizodwa
Consumer electronics 0.4-0.6g/cm*{1}} Shore C Low volatile matter (anti-inkungu)
I-Automotive electronics 0.5-0.7g/cm*3 20-40 I-Oyile ye-Shore C kunye nokumelana nobushushu
Ukukhanya kwangaphandle 0.6-0.8g/cm*3 30-50 Unxweme C Ukomelezwa kokumelana ne-UV
3. Amanyathelo okuthintela ukusilela
UVavanyo loQinisekiso oluSisigxina loQinisekiso: Ukuqinisekiswa kokuSebenza kokutywina{0}}kwexesha elide ngokweASTM D395
Ukulinganisa ukuguga kwe-Thermal: iiyure ze-1000 zitshintsha ukusebenza phantsi kwe-85℃/ 85%RH
Uvavanyo lokuqhaqhazela okubandayo kunye nobushushu: uvavanyo lokunamathela kwi-interface kwi-40℃ukuya kwi-85 degree
5, Iindlela zoVavanyo kunye noQinisekiso
Ukuqinisekisa imathiriyeli ye-silicone ugwebu ihlangabezana neemfuno ze-IP67 kwizicelo ezisebenzayo, le nkqubo yokuqinisekisa ilandelayo iyacetyiswa:
Izinto ezibonakalayo-uvavanyo lwenqanaba: Uhlalutyo lwe-Porosity (uqwalaselo lwe-SEM lokuvalwa- kwereyithi yeeseli) / uvavanyo lokuphumla loxinzelelo olucinezelayo (i-ASTM D395 Indlela B) / uvavanyo lokuhambisa umphunga wamanzi (ASTM E96)
Component -uvavanyo lwenqanaba: Uvavanyo lokubola kwamandla oxinzelelo (ukulinganisa iminyaka emi-5 yokusetyenziswa)/uvavanyo lwe-engile yokumanzisa ujongano (ukuqinisekisa i-hydrophobicity)/uvavanyo lokuphinda ucinezele emva kokukhwela ibhayisekile
Inkqubo-yovavanyo lwenqanaba: Uvavanyo lwetywina lokubola koxinzelelo (ubuntununtunu ukuya kuthi ga kwi-0.01Pa), uvavanyo lokuntywiliselwa lwamanzi oluqhelekileyo lwe-IP67 (ukuntywiliselwa kwemitha eyi-1 imizuzu engama-30), kunye novavanyo lwegumbi lothuli (iyure ezisi-8 eziqhubekayo zokuvezwa kothuli).