Raw khoom cia thiab pretreatment. Cov khoom siv raw khoom feem ntau yog tsim rau hauv cov khoom sib xyaw, thiab peb yam A, B, thiab C nrog polyol, isocyanate thiab catalyst raws li cov khoom tseem ceeb tau muab thiab muag. Lawv lub neej txee nyob rau hauv chav tsev kub thiab kaw tej yam kev mob yog 6 lub hlis, 3 lub hlis thiab 6 lub hlis, feem. Thaum lub sijhawm khaws cia, yuav tsum tau saib xyuas kom tsis txhob ya raws thiab lub teeb, thiab nws yog nruj me ntsis txwv tsis pub kom pom lub hnub thiab nag, thiab xyuam xim rau qhov cua. Yog tias lub txee lub neej ntev dhau lawm, kev tshuaj xyuas thiab cov qauv me me foaming kuaj yuav tsum tau ua ua ntej siv los xyuas seb nws puas siv tsis tau. Cov khoom siv raw yuav tsum tau rhaub thiab yaj ua ntej siv.
Yog tias cov xim sib xyaw yuav tsum tau, cov xim muab tshuaj ntxiv yuav tsum tau ntxiv rau A tivthaiv, thiab nws yuav tsum tau nplawm tag nrho ua ntej siv los ua kom nws sib npaug; Cov khoom siv catalyst feem ntau yog ntxiv rau A tivthaiv hauv cov nroj tsuag ntau lawm, tab sis vim tias cov organic catalysts yooj yim tsim rau hydrolysis, qee zaum vim muaj cov khoom sib txawv thiab ib puag ncig hauv ntau qhov chaw, cov catalyst tuaj yeem siv los ua cov khoom siv ib leeg los pab txhawb. kev hloov kho. Cov catalyst yuav tsum tau ntxiv rau A tivthaiv ua ntej siv, thiab tom qab nplawm rau yam tsawg 10 ~ 20min, ces A Cov khoom xyaw ntxiv rau lub tank ua hauj lwm ntawm lub foamer.
Qhov tseeb ntawm qhov kev faib ua feem ntawm cov khoom siv raw khoom yog qhov tseem ceeb tshaj plaws los xyuas kom meej cov khoom zoo. Yog li ntawd, txhua txhua hnub kev tsim khoom yuav tsum kuaj thiab xyuas qhov tseeb ntawm qhov ntsuas qhov sib npaug ntawm lub tshuab ua npuas dej. Thaum cov khoom siv tshiab tshiab los yog cov twj tso kua mis metering yuam kev hloov pauv tau zoo heev, tshwj xeeb yuav tsum tau them nyiaj rau kev saib xyuas thiab tshuaj xyuas ntawm cov khoom siv ntsuas qhov ntsuas. Kev ntsuas ntawm raw cov ntaub ntawv los ntawm lub tshuab foaming feem ntau yog raws li ntim, thiab nws lub ntim yog ncaj qha ntsig txog viscosity thiab txawm tias kub. Yog li ntawd, nyob rau hauv ntau lawm, lub siab thiab kub ntawm txhua raw khoom yuav tsum nruj me ntsis tswj nyob rau hauv lub predetermined ntau yam, txwv tsis pub, nws yuav loj heev. Muaj feem xyuam rau qhov tseeb ntawm cov khoom ntsuas ntsuas.
Cov pwm ib leeg feem ntau yog ua los ntawm aluminium alloy thiab steel khoom. Nyob rau hauv xyoo tas los no, kev siv cov resin pwm yog ntau heev. Cov qauv ntawm cov pwm kab noj hniav yuav tsum yog qhov tseeb, thiab kev saib xyuas tshwj xeeb yuav tsum tau them rau qhov tsim ntawm qhov sib sib zog nqus concave-convex qauv thaum tsim cov pwm, uas yuav tsum tau ua kom zoo rau cov pa tawm ntawm cov npuas npuas, tsis txhob raug mob-angled concave-convex qauv. , thiab yuav tsum tau hloov mus rau arc-shaped hloov yog tias tsim nyog.
Cov kev taw qhia thaum uas tig mus rau txoj kev khoov yuav tsum zoo dua nyob ib ncig ntawm 45 degree. Yav dhau los, qee cov neeg xav tias cov khoom tiav yuav tsum tsis txhob tuab heev, feem ntau 6 ~ 8mm, feem ntau tsis ntau tshaj 12mm; tab sis tam sim no qhov nchuav ntawm cov leeg nrog lub thickness ntau dua 12 hli tau ua tiav tiav.
Thaum ntxiv cov ntxig xws li ntoo cores, cov tub ntxhais ntoo yuav tsum qhuav. Cov pwm kub yuav tsum tau tswj ntawm 45 ~ 55 degree.
Raws li cov duab thiab qhov xav tau ntawm qhov ntom ntom, qhov kev txhaj tshuaj ntawm cov khoom siv foaming yuav tsum raug kho kom haum. Thaum pouring high-heeled soles, lub pob taws yuav tsum tau tsa kom zoo thaum txhim kho cov pwm. Thaum pouring, ncuav ib feem ntawm cov khoom nyob rau hauv pem hauv ntej ib feem thiab ces ncuav lub pob taws (kom lub chaw ua npuas ncauj tsis concentrated nyob rau hauv ib tug taw tes), thiab cov nyiaj txhaj tshuaj yuav tsum yog 40 feem pua ~ 70 feem pua; thaum nchuav cov khau tiaj tus, ib feem ntawm cov pwm yuav tsum tau nqa me ntsis mus rau qhov yuav tsum tau. Txhawm rau kho qhov tsim nyog lub kaum sab xis ntawm cov pwm ntawm cov kab ntau lawm, cov pwm inclination lub kaum sab xis yuav tsum tau hloov kho raws li cov duab ntawm ib leeg kom tsis txhob muaj qhov tsis xws luag xws li voids thiab huab cua npuas ntawm ib sab.
Lub sij hawm molding ntawm polyurethane ib leeg yog feem ntau 5 ~ 7min. Lub sijhawm no, qhov kev ua tau zoo ntawm polyurethane ib leeg tseem tsis tau mus txog qhov zoo tshaj plaws, thiab nws tsis raug tso cai siv ntau dhau thaum demoulding. Cov khoom lag luam ib nrab tiav tom qab demoulding yuav tsum muab tso rau hauv chav sov li 1 hnub, thiab tus neeg sawv cev tso tawm adhering rau saum npoo ntawm cov khoom yuav tsum tau ntxuav tsis pub dhau 24 teev los pab txhawb kev ua haujlwm tom qab xim xim.
