iindaba

Ikhadibhodi iqhuma kwi-depressions kwindawo enkulu, ebizwa ngokuba yi-warping.

Ukuqulunqwa kwephepha lekhadibhodi kuninzi:
Kukho i-warpage "elungileyo", ekwabizwa ngokuba "yi-warpage ephezulu", okuthetha ukuba ikhadibhodi iqhuma kwicala lephepha lethishu.
Into echaseneyo liphepha lemfazwe elithi “reverse”.
Elinye icala liconvex lize elinye libe yiconcave, nto leyo "i-S-shaped warping".I-warping iphuhliswa ngokuthatha i-diagonal yekhadibhodi njenge-axis ukuba "i-warping ejijekileyo", eyaziwa ngokuba yi-"corrugated warping".
I-axis ye-warping ihambelana necala le-corrugated direction, elibizwa ngokuba "icala lobude" be-warping.Ngaphandle kwe-warpage yangaphambili, ezinye iindidi ze-warpage zinqabile.

Sebenzisa ikhadibhodi ephothiweyo ukwenza iibhokisi, umphezulu webhokisi awulungile, kwaye imilo ayikwazi ukuba isikwere, echaphazela ukubonakala.Ngenxa yomgangatho ongalinganiyo webhokisi, kulula ukulahlekelwa uzinzo xa uphantsi kwamandla, okunciphisa ukunyanzeliswa kwe-carton.Ikhadibhodi ephothiweyo ayilula ukuqokelela, kwaye umsebenzi awulungile, kwaye awukwazi ukungena kumatshini wokushicilela ngokutyibilikayo, ochaphazela kakhulu umphumo wokushicilela kunye nokuchaneka kwe-slotting.

Isizathu esisisiseko se-warpage yekhadibhodi ukungalingani komgangatho wephepha: iidigri ezahlukeneyo zokwandiswa kunye nokucutshungulwa kwamacandelo ahlukeneyo ekhadibhodi kubangelwa.

Umxholo wamanzi wephepha uhlukile, kwaye iinkozo zihluke kwiindlela ezithe nkqo kunye nezithe tye, kwaye iqondo lokunciphisa likwahluke.

Xa iphepha elixhasayo (ubuso kunye nangaphakathi) kumacala omabini ekhadibhodi lihluke ekwandiseni kunye nokunciphisa, kulula ukubangela ukuba ikhadibhodi iqhube.Xa kuthelekiswa nephepha elicekethekileyo nelincinci, ukusetyenziswa kwephepha elishinyeneyo nelinzima kunenqanaba elizinzileyo lokwandiswa kunye ne-deformation encinci.Ngoko ke, xa ubukhulu okanye ubunzima bephepha lobuso kunye nephepha langaphakathi lihluke, i-cardboard inokuthi idibanise.Ngoko ke, xa uhambelana nephepha kwi-carton design okanye imveliso, igrammage kunye nomgangatho wezicubu kufuneka zilingane okanye zivale.

Ngenxa yezalathiso zefiber ezahlukeneyo zephepha, xa lifudunyezwa, ukushwabana kwalo okunqamlezayo kuphindwe kabini kunokuncipha kwalo kobude.Ngoko ke, xa uxuba iphepha kwimveliso, ulwalathiso lwefiber ebusweni kunye nephepha langaphakathi kufuneka ngokuqhelekileyo lifane nokunciphisa i-warpage yekhadibhodi.

Kumatshini webhodi ebotshiweyo, iphepha alikwazi ukuncipha ngenxa yokutsala kunye nobude bekhadibhodi, kodwa i-lateral shrinkage yephepha ayikwazi ukulawulwa.Lo ngomnye unobangela ophambili “wephepha lemfazwe elilungileyo”.

Kwimveliso, i-shrinkage kunye ne-deformation yephepha inokulawulwa ngokulungelelanisa ukushisa ukunciphisa i-warpage yekhadibhodi.

Unobangela "wephepha lemfazwe elingaphambili" ngokuqhelekileyo kukuba iphepha le-lining kunye ne-corrugation enye imanzi kakhulu, kwaye iphepha elingaphezulu lome kakhulu.Ngoko ke, iqondo lokumisa iphepha le-lining kunye ne-corrugation enye kufuneka linyuswe ukunciphisa ukutshisa kwangaphambili kwephepha elingaphandle.Umzekelo, yongeza indawo yokufudumeza kwephepha elityatyekiweyo kunye nephepha le-lining kubuso obunye, wehlise iqondo lobushushu lepleyiti eshushu kumatshini wokugquma, unciphise inani leeroli zomxhuzulane, kwaye ngokufanelekileyo wandise isantya sesithuthi ukunciphisa ubushushu. ugqithiselo.Xa upaka, kufuneka uphakamise ikhadibhodi kude nesitya esishushu, okanye utshize iphepha ebusweni, utshintshe kwi-high-concentration kunye ne-high-viscosity adhesive, kwaye unciphise inani leglue.

Isizathu sokuba "i-reverse side warping" ichasene noku kungasentla, kuba i-corrugation enecala elinye yome kakhulu kwaye iphepha le-tissue limanzi kakhulu.Ngoko ke, indlela echaseneyo kufuneka yamkelwe ukulawula.

I-warpage yohlobo lwe-S idla ngokuthetha ukuba imiphetho yephepha imanzi kakhulu kwaye isiseko sephepha sishwabana kakhulu.Inokunyusa ixesha lokufudumeza kwephepha.Kwakhona kunokuba isizathu sokuba izinto zekhadibhodi eziphezulu kunye nezantsi zihluke kakhulu.

Iimbangela zokugqwetheka kunye ne-warping zezi: i-tension ye-cad corrugated ngokusebenzisa ibhulorho inkulu kakhulu;umgangatho wephepha lesiseko awulungile;ukuhanjiswa kweqondo lokushisa kweplate eshushu ayilingani, kwaye umswakama wephepha lesiseko awulingani.