Polyurethane foaming muchina chinhu chakakosha chekupinza uye kupupa furo re polyurethane.Chero bedzi chikamu chepolyurethane chezvinyorwa (isocyanate chikamu uye polyether polyol chikamu) zviratidzo zvekushanda zvinosangana nezvinodiwa fomula.Uniform uye akakodzera foam zvigadzirwa zvinogona kugadzirwa kuburikidza ne polyurethane yakakwira uye yakaderera kumanikidza muchina.Yakagadzirwa nepurasitiki ine furo nekemikari reaction inopupuma yepolyether polyol uye polyisocyanate pamberi peakasiyana makemikari ekuwedzera akadai seanoita furo agent, catalyst uye emulsifier.
Chengetedzo yekushanda kwepolyurethane furo muchina
1. Thepolyurethane furo muchinaanofanirwa kupfeka magirazi ekudzivirira, hembe dzebasa nemakepisi ebasa, uye magurovhosi erabha paunenge uchishanda musanganiswa we polyurethane A uye B.Nzvimbo yekushanda inofanirwa kunge iine mhepo yakanaka uye yakachena.Kana tembiricha yepamhepo yakakwira, iyo inopupuma mu polyurethane A zvinhu zvinoputika zvishoma uye kuburitsa kudzvanywa, saka chivharo chekubuditsa chinofanira kuvhurwa kutanga kuburitsa gasi, uye ipapo chivharo chedhiramu chinofanira kuvhurwa.
2. Kana muchina unopupa wepolyurethane uine zvinodiwa nemoto unodzoreredza furo, muchina unopupuma furo wepolyurethane unogona kushandisa murazvo wekuwedzera unodzoreredza.Iyo yekuwedzera huwandu hweyakajairwa murazvo retardant ndeye 15-20% yehuremu hwezvinhu zvichena, uye murazvo wemoto unowedzerwa kune polyurethane A zvinhu.Inofanira kubvongodzwa zvakaenzana isati yapupuma furo.
3. Panguva yekushanda kwepuro ye polyurethane foaming muchina, kunyatsoyera polyurethane A uye B inoumbwa zvinhu muchiyero uye uidururire mumudziyo panguva imwe chete.Mushure mokukurudzira kwe8 kusvika ku10 seconds neine mutsara inopfuura 2000 rpm, dururira muforomu uye furo.Iyo nguva yekudhirowa inoenderana nezvinodiwa zvechigadzirwa, furo ukobvu, nezvimwe.
4. Kana ganda richisangana neyakasanganiswa polyurethane zvinhu A, inofanira kushambidzwa nesipo nemvura.Kana iyo polyurethane foaming muchina ichishanda iyo polyurethane B zvinhu (kune kumwe kutsamwisa), usafemedze chiutsi chayo uye usachimwaya paganda nemeso.Kana zvasvika kune ganda nemaziso, inofanira kubviswa nekotoni yezvokurapa pakarepo, yozoshambidzwa nemvura yakawanda kwemaminitsi gumi nemashanu, uye yozoshambidzwa nesipo kana doro.
Kutenga hunyanzvi hwe polyurethane foaming muchina
1. Kunyatsonzwisisa mhando yemuchina unopupa furo
Nheyo yakakosha yemuchina wekupupa wepolurethane ndeyekuunza gasi mumushonga wemvura wemushonga unopupa, asi mhando dzakasiyana dzemichina inopupuma dzinounza gasi nenzira dzakasiyana.Semuyenzaniso, mhando yepasi-speed inosimudzira inotsamira pamablades anotenderera anononoka kuunza gasi, zvichikonzera kubuda kwebubble diki uye kushomeka kwefuro;iyo yakakwirira-yekumhanya impeller inotsamira pane yakakwira-speed inotenderera impeller kumhepo inobuda ropa, ukuru hwemabhubhu haugone kudzorwa, uye furo harina kuenzana;high-pressure and medium-low pressure types inogadzira furo High speed, high performance, uniform and small bubbles.
2. Basic parameters ye polyurethane furo muchina:
1) Goho: Goho huwandu hwefuro hunogadzirwa, hunofanirwa kunge hwakakwira zvishoma pane hunodiwa huwandu hwefuro ne20%.Kuti usiye nzvimbo yehuwandu hwehuputi hunogadzirwa, muganhu wakaderera unofanira kushandiswa senheyo yekuverenga uye kuverenga, uye muganhu wepamusoro haugoni kushandiswa.
2) Iyo yakaiswa simba re polyurethane foaming muchina: iyo yakaiswa simba ndiyo yakazara yakaiswa simba.Iyi parameter yakakosha zvikuru pakuverenga kuchinjika kwedunhu remagetsi kune yakazara simba rekushandisa.
3) Saizi uye dhayamita renji ye polyurethane foaming muchina.
Nguva yekutumira: Jul-27-2022