Lembe ango ma jutiyo kudu pi gedo pa jamb plastik?

Lembe ango ma jutiyo kudu pi gedo pa jamb plastik?

Kit ma juyubu kudu jam piny ma plastik uketho i iye lembe macalo geometry, rwom pa piny, rwom mi goyo piny, rwom pa piny, rwom pa cel, rwom pa pii, lac pa vur, radii pa fillet, rwom pa rwom pa piny, man rwom pa piny. Lembe maeni biweco ikum lembe acel acel man biweco ikum kite mi yubu piny eni i saa mi thermoforming pi medo ber pa piny man tic maber.

1. Geometry man Dimensional Accuracy

Nicakire plastik thermoforming ubedo yore mir aryo mi tic, asaga in vacuum forming, pol kare bedo ku apoka poka ikind karatasi mi plastik ku mold. Mi medo, nyai man nyai, asaga kama ucungo woko, copo ketho dul pa ot doko nyap, ma kelo dwoko piny pa tego. Pieno, jam piny ma jutiyo kudu pi yubu vacuum ucikere ngo ni bedu ku cik ma tek pa geometry man dimensional accuracy.

I kare mi yubu, karatasi mi plastik ma lyeth ubedo i rwom ma nyai, ma copo telu nyai. Ka imedo ku ngico man nyai ingey demolding, dit pa piny man kite pa piny copo bedu marac pi lyethu man aloka loka mi kabedu. Pi the lembe eni, piny ma juyubu ku thermoformed plastic epe pi tic mi yubu piny maber.

2. Ratio mi goyo

Draw ratio, ma en e ratio pa bor pa piny (nyo thum pa piny) ku lac pa piny (nyo diameter), nyuthu peko pa tic mi yubu piny. Ka draw ratio ubedo malac, yub mi yubu doko tek, man bedo tek pa lembe ma rac calo wrinkling nyo cracking. Draw ratios madwong dwoko piny tego man tek pa piny ne. Pieno, i tic mandha, rwom ma piny pa rwom ma malu pa rwom ma malu jutiyo kudu, pol kare ikind 0.5 ku 1.

Ratio mi draw utiye ku winjiri ku dit pa cel ma nok pa piny ne. Draw ratio ma nok copo ketho cel ma gwai, maber pi yiku sheet ma thin, ento draw ratio madit mito sheet ma gwai pi neno ni cel kud udok thin akeca. Mi medo, ratio mi goyo piny utiye ku winjiri ku angle mi goyo piny man kero pa piny ma jucwalo. Mi neno nia piny ne ber, rwom pa piny ma jucwalo ucikere ni bedo maber pi gwoko rwom pa piny ma jucaku kudu.

3. Fillet Design

Kabedo ma lac ucikere ngo juyike i thenge nyoke i ngete pa jam piny ma plastik. Kakare, jubi tiyo ku ringu ma dit ma copo bedu, ku radius mi kor ot ma nok ungo wang 4 ku 5 pa dwong pa karatasi. Ka itimo ngo kumeno, ecopu nyayu doko nyap pa piny man kero pa piny, ma copo nyayu peko i tego man bedo pa piny ne.

4. Draft Angle

Thermoforming molds, marom ku molds ma nja, mitu angle moko mi draft pi konyo demolding. Angle mi draft ubedo 1° ku 4°. Angle ma nok mi pii copo tiyo pi mon, calu ma nyai pa plastic miyo kabedo moko ma yot, ma weko demolding doko yot.

5. Reinforcement Rib Design

Thermoformed plastic sheets pol kare gibedo ma nyap, man yore mi yiku gi rwinyo ku draw ratio. Pieno, medu ribs mi tego i kabedu ma goro utiye yore madit mi medu tego man tego. Kethu pa cing cing ucikere ni nen maber pi gwoko kabedo ma nyap akeca i thenge piny man i thenge mi thenge.

Mi medo, medu lum ma nyap, rangi, nyo lanyuth i thenge ma piny pa thermoformed shell copo medo kero man konyo gedo. Longitudinal shallow grooves in the sides medu vertical rigidity, ento transverse shallow grooves, kadi nya medo tek pa collapse, ecopu ketho demolding doko tek.

6. Dwoko piny pa piny

Piny ma juyubu ku mac pol kare nwangu nyai ma nyai, ku 50% pare timere i saa mi ngico i mold. Ka lyethu pa mold utiye malu, piny ne copo dwoko piny ku 25% ka edoko ngic ni room temperature ingey demolding, ku 25% mukende mi dwoko piny ne timere ikind sawa 24 ma ulubo. Bende, piny ma juyubu ku mol pa mon bedu ku 25% ku 50% ma malu uloyu ma juyubu ku mol pa coo. Pieno, piretek ni ketho i iye shrinkage i saa mi yiku piny ni neno nia rwom ma tok cen urombo ku yeny mi bedo atira.

Ni dwoko piny maber pi geometry, draw ratio, fillet radius, draft angle, reinforcement ribs, man shrinkage, ber pa thermoformed plastic parts copo bedu maber akeca. Lembe maeni mi yubu yub tiye ku tic ma pire tek ikum tic maber pa piny ma juyubu ku thermoformed man gitiye piny ma pire tek pi neno nia piny ne urombo ku yeny pa jutic.