Polyol uye isocyanate ratio:

Polyol ine yakakwira hydroxyl kukosha uye hombe molecular huremu, iyo inozowedzera iyo crosslinking density uye kubatsira kuvandudza furo density. Kugadzirisa isocyanate index, kureva, iyo molar ratio ye isocyanate kune inoshanda hydrogen mu polyol, ichawedzera dhigirii yekuyambuka uye kuwedzera density. Kazhinji, iyo isocyanate index iri pakati pe 1.0-1.2.

 

Sarudzo uye dosage yefoaming agent:

Rudzi uye dosi yeanoita furo inokanganisa zvakananga mwero wekuwedzera kwemhepo uye bubble density mushure mekupupa, uye zvino kukanganisa kukora kweiyo crust. Kudzikisa dosi yehupfuro hwemuviri inogona kuderedza porosity yefuro uye kuwedzera density. Semuenzaniso, mvura, sekemikari inopupuma furo, inopindirana neisocyanate kuti ibudise carbon dioxide. Kuwedzera huwandu hwemvura kunoderedza furo density, uye huwandu hwayo hwekuwedzera hunoda kunyatsodzorwa.

 

Nhamba ye catalyst:

Iyo catalyst inofanirwa kuve nechokwadi chekuti furo rinoita uye kuita kwegel mukuita kupupa kunosvika pachiyero chine simba, zvikasadaro bubble kudonha kana kudonha kuchaitika. Nekusanganisa yakasimba alkaline tertiary amine komboni ine simba rakasimba rekukonzeresa pamhepo inoputika uye inokonzeresa zvakanyanya pakuita kwegel, inokonzeresa yakakodzera kune yekuzvikanda ganda system inogona kuwanikwa.

 

Kudzora tembiricha:

Mold tembiricha: Ukobvu hweganda huchawedzera sezvo tembiricha ye mold inoderera. Kuwedzera tembiricha yekuumbwa kunomhanyisa chiyero chekuita, izvo zvinoita kuti igadzire denser chimiro, nekudaro ichiwedzera density, asi yakanyanya kupisa tembiricha inogona kuita kuti maitiro abude mukutonga. Kazhinji, tembiricha yekuumbwa inodzorwa pa40-80 ℃.

 

Kuibva tembiricha:

Kudzora tembiricha yekuchembera kusvika 30-60 ℃ uye nguva kusvika 30s-7min inogona kuwana yakaringana chiyero pakati pesimba rekudzikinura uye kugona kugadzira kwechigadzirwa.

 

Pressure control:

Kuwedzera kudzvanywa panguva yekupupa kunogona kutadzisa kuwedzera kwemabhuru, kuita kuti furo chimiro chiwedzere compact, uye kuwedzera density. Nekudaro, kudzvinyirirwa kwakanyanya kuchawedzera zvinodikanwa zve mold uye kuwedzera mutengo.

 

Kumhanyisa kumhanya:

Kuwedzera kumhanyisa kumhanya kunogona kuita kuti zvigadzirwa zvisanganise zvakaenzana, kuita zvizere, uye kubatsira kuwedzera density. Nekudaro, kukurumidza kumhanyisa kumhanya kunounza mhepo yakawandisa, zvichikonzera kudzikira kwedensity, uye inowanzodzorwa pa1000-5000 rpm.

 

Kuzadza coefficient:

Huwandu hwejekiseni hwemusanganiswa wekuita kwechigadzirwa chekuzvikanda pachako hunofanirwa kunge hwakakura kupfuura huwandu hwejekiseni hwekupupa kwemahara. Zvichienderana nechigadzirwa uye hurongwa hwezvinhu, iyo yakawandisa coefficient inowanzo 50% -100% kuchengetedza yakakwira mold kudzvanywa, iyo inobatsira kune liquefaction yeanoita furo muganda reganda.

 

Skin layering nguva:

Mushure mekunge iyo polyurethane ine furo yakadururirwa mumuenzaniso, iyo nguva yakareba iyo nzvimbo yakagadziriswa, iyo inowedzera ganda. Kudzora kunonzwisisika kwenguva yekuenzanisa mushure mekudururwa zvakare imwe yenzira dzekudzora ukobvu hweganda.