Iindaba

Ulwakhiwo lwesandwich ludla ngokuba yimidibano eyenziwe ngamaleko amathathu wemathiriyeli.Iingqimba eziphezulu kunye nezantsi ze-sandwich composite material ziphezulu-amandla kunye ne-high-modulus materials, kunye nomgangatho ophakathi yinto enzima kakhulu.Ulwakhiwo lwesangweji ye-FRP ngokwenene ludibaniso lwezinto ezidibeneyo kunye nezinye izinto ezilula.Isakhiwo sesandwich sisetyenziselwa ukuphucula ukusetyenziswa okusebenzayo kwezinto kunye nokunciphisa ubunzima besakhiwo.Ukuthatha amacandelo e-beam-slab njengomzekelo, kwinkqubo yokusetyenziswa, kuyimfuneko ukuhlangabezana neemfuno zamandla kunye nokuqina.Iimpawu zeglasi zeplastiki ezomeleziweyo zefiber zinamandla aphezulu, iModulus iphantsi.Ke ngoko, xa ifayibha enye yeglasi eyomeleziweyo imathiriyeli yeplastiki isetyenziselwa ukwenza imiqadi kunye ne-slabs ukuhlangabezana neemfuno zamandla, ukuphambuka kudla ngokuba kukhulu kakhulu.Ukuba uyilo lusekelwe ekuphambukeni okuvumelekileyo, amandla aya kugqithwa kakhulu, okubangela inkunkuma.Kuphela ngokwamkela uyilo lwesakhiwo sesandwich apho oku kuphikisana kungasonjululwa ngokufanelekileyo.Esi sesona sizathu siphambili sophuhliso lwesakhiwo sesandwich.

Ngenxa yamandla aphezulu, ubunzima obukhanyayo, ukuqina okuphezulu, ukumelana nokugqwala, ukugqunywa kombane kunye nokuhanjiswa kwe-microwave yesakhiwo sesandwich ye-FRP, isetyenziswe ngokubanzi kwiinqwelomoya, imijukujelwa, i-spacecraft kunye nemodeli, iipaneli zephahla kwishishini le-aviation kunye ne-aerospace industry.Ukunciphisa ubunzima besakhiwo kunye nokuphucula umsebenzi wokusetyenziswa.I-fiber yeglasi ecacileyo eqiniswe kwipaneli ye-sandwich yeplastiki isetyenziswe ngokubanzi kuphahla olukhanyayo lwezityalo zemizi-mveliso, izakhiwo zoluntu ezinkulu kunye neendawo zokugcina izityalo kwiindawo ezibandayo.Kwintsimi yokwakhiwa kweenqanawa kunye nokuthutha, izakhiwo ze-sandwich ze-FRP zisetyenziswa ngokubanzi kumacandelo amaninzi kwi-submarines ye-FRP, i-minesweepers, kunye ne-yachts.Iibhulorho zabahambi ngeenyawo ze-FRP, iibhulorho zendlela, iimoto kunye noololiwe, njl.njl. ezenzelwe kwaye zenziwe kwilizwe lam zonke zamkela isakhiwo sesandwich ye-FRP, ehlangabezana neemfuno zokusebenza ezininzi zobunzima bokukhanya, amandla aphezulu, ukuqina okuphezulu, ukufudumala ukushisa kunye nokugcinwa kobushushu.Kwisigqubuthelo sombane esifuna ukuhanjiswa kwe-microwave, isakhiwo se-sandwich ye-FRP siye saba yinto ekhethekileyo kwezinye izinto ezingenakuqhathaniswa nazo.

Iintlobo kunye neempawu ze-FRP sandwich izakhiwo

Ngokweentlobo ezahlukeneyo kunye neefom zezinto eziphambili ezisetyenziswe kwi-sandwich structure, i-sandwich ye-FRP isakhiwo sahlulwe: isakhiwo se-sandwich ye-foam, isakhiwo se-sandwich ye-honeycomb, i-trapezoidal plate sandwich structure, isakhiwo se-sandwich esixande kunye nesakhiwo sesetyhula sesetyhula.

(1) Ulwakhiwo lwesangweji yeplastiki enogwebu Ulwakhiwo lwesangweji yeplastiki enogwebu lisebenzisa icwecwe leplastiki elomeleziweyo lweglasi njengesikhumba (iphaneli) kunye nogwebu njengomaleko ongundoqo.Amacandelo anamandla amancinci kunye neemfuneko zokusebenza eziphezulu zokugquma kwe-thermal, njengemisila yenqwelomoya, i-thermal insulation ventilation ducts kunye neetemplates.

(2) Ulwakhiwo lwesangweji yenqatha lobusi Ulwakhiwo lwesangweji yenqatha lobusi lisebenzisa i-glass fibre eyomeleziweyo yeplastiki njengesikhumba, kunye nemathiriyeli yenqatha lobusi (ilaphu leglasi yobusi, i-honeycomb yephepha okanye enye ilaphu lomqhaphu kunye ne-aluminiyam yobusi, njl.njl.) njengomaleko ongundoqo.Isakhiwo sesangweji ye-honeycomb ilula ngobunzima, iphezulu kumandla kwaye iphakamileyo ekuqineni, kwaye isetyenziswa ikakhulu kumacandelo esakhiwo kunye nemilinganiselo emikhulu yesakhiwo kunye neemfuno zamandla aphezulu, njengamacwecwe athwele imithwalo yeebhulorho ze-FRP, izakhiwo zophahla oluyingqukuva, i-radomes, i-reflection. imiphezulu, imigangatho yelori efrijiweyo kunye nezakhiwo zeebhokisi Linda.

(3) I-trapezoidal kunye ne-rectangular lead-action layer structure Iphaneli (isikhumba) yesi sakhiwo se-lead-action layer yi-glass fiber eqiniswe kwi-plastic sheet, kunye ne-sandwich layer yi-glass fiber eqiniswe ipleyiti ye-trapezoidal okanye ipleyiti ye-rectangular.Esi sakhiwo sesandwich sinolwalathiso olomeleleyo kwaye silungele kuphela iipleyiti ezisicaba eziphezulu, kungekhona kwiimveliso ezinemilo egobileyo.

4Iimpawu zesi sakhiwo sesandwich kukuba ukusetyenziswa kwezinto eziphambili kuphantsi, amandla aphakamileyo, kwaye amandla eplate akanalo ulwalathiso.Yeyona ifanelekileyo yeglasi yefayibha ecacileyo eyomeleziweyo yeplastiki yesangweji ipleyiti yokukhanyisa.

Ixesha lokuposa: Mar-02-2022