nhau

Iyo kadhibhodhi inoputika mukuora mwoyo munzvimbo yakakura, iyo inonzi warping.

Kuumbwa kwemakadhibhodhi warpage kune zvakawanda:
Pane "positive" warpage, inozivikanwawo se "upward warpage", zvinoreva kuti makadhibhokisi anoputika akananga kudivi retishu bepa.
Zvakapesana ne “reverse” warpage.
Rimwe divi rine convex uye rimwe divi rine concave, inova “S-shaped warping”.Iyo warping inogadzirwa nekutora diagonal yekadhibhodhi seakisi yekuve "yakamonyoroka warping", inozivikanwawo se "corrugated warping".
The warping axis inofambirana negwara, iro rinonzi "length direction" warping.Kunze kwekuenderera mberi, mamwe marudzi ewarpage haawanzo.

Shandisa warped cardboard kugadzira makatoni, pamusoro pebhokisi hachina kunaka, uye chimiro hachigone kuenzana, chinokanganisa chitarisiko.Nekuda kwekusaenzana kwepamusoro kwebhokisi, zviri nyore kurasikirwa nekugadzikana kana zvichiiswa pasi pekumanikidza, izvo zvinoderedza kudzvinyirira kupikisa kwekatoni.Kadhibhodhi yakamonyoroka haisi nyore kuunganidza, uye magadzirirwo acho haana kunaka, uye haakwanise kupinda muchina wekudhindisa zvinyoronyoro, izvo zvinokanganisa zvakanyanya kudhinda uye iko kurojera.

Chikonzero chikuru che warpage yekadhibhodhi ndiko kusaenzana kwehutano hwemapepa: madhigirii akasiyana-siyana ekuwedzera uye kuputika kwezvikamu zvakasiyana-siyana zvekadhibhodhi zvinokonzerwa.

Mvura yemvura yepepa yakasiyana, uye zviyo zvakasiyana-siyana mumativi akareba uye akadzikama, uye dhigirii ye shrinkage yakasiyanawo.

Apo pepa rinotsigira (chiso nechomukati) kumativi ose emakadhibhodhi akasiyana nekuwedzera uye kuputika, zviri nyore kuita kuti kadhibhodhi iwedzere.Kuenzaniswa nebepa rakatetepa uye diki, kushandiswa kwebepa gobvu uye rinorema kune yakagadzikana dhigirii yekuwedzera uye kushoma deformation.Naizvozvo, kana ukobvu kana huremu hwepepa rechiso uye bepa remukati zvakasiyana, kadhibhodhi inogona kupeta.Naizvozvo, kana uchifananidza bepa mukugadzira katoni kana kugadzirwa, girama uye mhando yetishu inofanira kuenzana kana kuvhara.

Nekuda kwekusiyana kwefiber nzira dzebepa, kana ichipisa, shrinkage yaro yakachinjika yakakura zvakapetwa kaviri kupfuura kupera kwayo kwenguva refu.Naizvozvo, kana uchisanganisa bepa mukugadzira, iyo fiber kutungamira kwepamusoro uye bepa remukati rinofanirwa kunge rakafanana kuderedza warpage yemakadhibhodi.

Pamushini we corrugated board, pepa harigoni kuderera nekuda kwekukwevera pamwe nekureba kwekadhibhodhi, asi kupera kwepashure kwepepa hakugoni kudzorwa.Ichi ndicho chimwe chikonzero chikuru che "positive warpage".

Mukugadzira, shrinkage uye deformation yepepa inogona kudzorwa nekugadzirisa kupisa kuderedza warpage yemakadhibhodi.

Chikonzero che "frontal warpage" kazhinji ndechekuti bepa rekugadzira uye corrugation imwechete zvakanyorova, uye bepa repamusoro rakanyanya kuoma.Nokudaro, dhigirii yekuomeswa kwepepa rekugadzira uye corrugation imwe chete inofanira kuwedzerwa kuderedza kupisa kwepamusoro pepepa rakapesana.Semuyenzaniso, wedzera preheating yebepa rine corrugated bepa uye lining bepa pane imwechete-chiso, kudzikisira tembiricha yendiro inopisa pamushini wekupfekedza, kuderedza huwandu hwemagetsi emagetsi, uye zvakakodzera kuwedzera kumhanya kwemotokari kuderedza kupisa. transfer.Paunenge uchipaka, unofanira kusimudza kadhibhodhi kubva kune ndiro inopisa, kana kupfapfaidza pepa pachiso, shandura kune yakakwirira-concentration uye high-viscosity adhesive, uye kuderedza kuwanda kweglue.

Chikonzero che "reverse side warping" chakangopesana nezviri pamusoro, nekuti corrugation yedivi rimwe chete yakaoma uye bepa rematishu rakanyorova.Nokudaro, nzira inopesana inofanira kugamuchirwa kudzora.

S-type warpage inowanzoreva kuti mipendero yebepa yakanyanya kunyorova uye base bepa rinodzikira zvakanyanya.Inogona kuwedzera preheating nguva yepepa.Inogonawo kuva chikonzero nei zvinhu zvekadhibhodhi yepamusoro nepamusoro zvakasiyana zvakanyanya.

Zvinokonzera kukanganisa uye kuputika ndezvi: tension ye-single-sided corrugated kuburikidza nebhiriji yakakura zvikuru;kunaka kwebepa rekutanga hakuna kunaka;kugoverwa kwekushisa kwendiro inopisa haina kuenzana, uye unyoro hwepepa rekutanga hauna kuenzana.