Feem ntau hais lus, cov khoom siv roj hmab molded yuav tsum tau molded los ntawm cov pwm sib thooj rau molding ua, cov khoom siv roj hmab tom qab kub siab, siab siab vulcanization, los ntawm pwm kab noj hniav los yog pwm core feem ntau hu ua pwm tso tawm. Tsis zoo demolding yog ib qho ntawm cov laj thawj tseem ceeb rau qhov tsis zoo ntawm cov khoom siv roj hmab thiab qhov cuam tshuam rau kev tsim khoom. Nws tuaj yeem ua rau muaj qhov tsis xws luag xws li distortion thiab tearing ntawm qhov chaw, thiab qee qhov kev puas tsuaj rau pwm, ua rau muaj teeb meem rau kev tsim khoom. Kawm txog cov yam tsis zoo uas cuam tshuam rau kev demolding ntawm cov khoom siv roj hmab yog qhov tseem ceeb los xyuas kom meej cov khoom zoo, tiv thaiv qhov tsis xws luag, tiv thaiv cov khoom seem, thiab txhim kho kev tsim khoom.
1. Cov yam ntxwv cuam tshuam rau demolding ntawm cov khoom siv roj hmab
Kev tsis zoo ntawm cov khoom siv roj hmab feem ntau txhais tau hais tias thaum cov khoom raug tshem tawm, nws tsis tuaj yeem poob zoo. Qhov no yog tshwm sim los ntawm ntau yam cuam tshuam, cov xwm txheej no muaj kev sib raug zoo rau ib leeg, thiab qib ntawm kev cuam tshuam thiab kev qhia txawv, feem ntau suav nrog cov khoom siv roj hmab, tsim pwm thiab tsim, txheej txheem ntau lawm, kev ua haujlwm, kev tu pwm, thiab lwm yam.
1.1 Kev cuam tshuam ntawm cov khoom siv roj hmab tsim ntawm pwm tso tawm
Kev tsim cov khoom siv roj hmab ncaj qha cuam tshuam rau kev tso tawm cov khoom lag luam, yog li kev tsim cov khoom lag luam yuav tsum ua kom tau raws li qhov yuav tsum tau ua kom yooj yim demolding ntawm cov khoom. Lub ntsiab tseem ceeb cuam tshuam rau kev demolding hauv kev tsim cov khoom lag luam yog qhov demolding txoj kab nqes, txhawm rau qhib pwm thiab tshem tawm cov khoom, sab hauv thiab sab nrauv ntawm txoj kab ntsug ntu yuav tsum tau muab nrog kev ua kom txaus demolding txoj kab nqes. Txawm hais tias qee cov khoom lag luam muaj txoj kab nqes ntawm demolding, tus nqi tsawg dhau, thiab qee cov khoom tsuas yog muaj txoj kab nqes ntawm sab nrauv, tsis quav ntsej txoj kab nqes ntawm sab hauv thiab sab hauv ribs thiab perseverance; Qee cov khoom tsis muaj txoj kab nqes, uas ua rau muaj teeb meem rau cov khoom demolding. Tom qab cov khoom yog ci, lub centripetal shrinkage tshwm sim vim qhov txias ntawm cov khoom, uas ua rau ib tug loj tuav quab yuam ntawm cov tub ntxhais los yog tus pin, uas cuam tshuam lub demolding. Yog tias qhov demolding txoj kab nqes nce, qhov kev tiv thaiv no tuaj yeem txo qis, thiab qhov tsis xws luag xws li tawg ntawm cov khoom vim tsis muaj txoj kab nqes kuj tuaj yeem zam tau. Txoj kab nqes demolding yog muaj feem xyuam rau cov duab thiab thickness ntawm cov khoom, feem ntau txiav txim empirically, thiab txoj kab nqes ntawm cov khoom dav dav yog nruab nrab ntawm 1 ° ~ 3 °.
1.2 Kev cuam tshuam ntawm pwm tsim thiab tsim khoom ntawm pwm tso tawm
1.2.1 Kev cuam tshuam ntawm pwm tsim ntawm pwm tso tawm
Roj hmab pwm yog ib qho ntawm cov cuab yeej tseem ceeb rau kev tsim cov khoom siv roj hmab, pwm nias lub hauv paus ntsiab lus tuaj yeem muab faib ua cov pwm txhaj tshuaj, tuag casting pwm, nias pwm tsim raws li cov duab, cov yam ntxwv thiab kev siv cov khoom, raws li cov khoom siv roj hmab tib yam los tsim ntau cov pwm ntawm cov qauv sib txawv. Cov qauv pwm yog ncaj qha ntsig txog cov khoom zoo, kev ua haujlwm ntau lawm, pwm ua nyuaj thiab kev pabcuam lub neej. Yog li ntawd, kev tshawb nrhiav pwm tsim qauv yog qhov tseem ceeb heev. Txhawm rau kom ntseeg tau tias cov khoom siv roj hmab muaj qhov tseeb geometry thiab qee qhov raug, pwm tsim qauv yuav tsum ua raws li cov hauv qab no:
(1) Xwb thiab nkag siab qhov hardness, shrinkage thiab siv cov kev cai ntawm cov khoom siv hauv cov khoom siv roj hmab.
(2) Xyuas kom cov duab thiab contour ntawm cov khoom.
(3) Cov qauv pwm yuav tsum yooj yim thiab tsim nyog, qhov chaw yuav tsum tau txhim khu kev qha, lub installation thiab disassembly yuav tsum yooj yim, thiab nws yuav tsum yooj yim rau kev khiav lag luam.
(4) Tus naj npawb ntawm pwm kab noj hniav yog tsim nyog, uas yog yooj yim rau machining thiab pwm siv, thiab yuav tsum coj mus rau hauv tus account ntau lawm efficiency.
(5) Cov pwm yuav tsum muaj lub zog txaus thiab rigidity, thiab siv zog ua kom me me, lub teeb hauv qhov hnyav, yooj yim rau kev ua, thiab ua raws li cov txheej txheem ntau lawm.
(6) Cov kab noj hniav pwm yuav tsum yooj yim rau kev thauj khoom thiab tshem tawm cov khoom, thiab thaum vulcanizing, cov khoom siv roj hmab yuav tsum muaj lub siab txaus.
(7) Cov pwm yuav tsum muaj qhov tseeb, tiav thiab tsim nyog parting nto, uas yooj yim rau luas.
(8) Cov pwm yuav tsum muaj cov roj hmab tawg kom yooj yim ntxuav.
(9) Cov qauv tsim pwm yuav tsum ua raws li kev sib tw thiab kev tsim qauv, thiab siv zog ua kom muaj txiaj ntsig zoo.
Los ntawm cov kev xav tau ntawm kev tsim pwm, nws tuaj yeem pom tias cov yam ntxwv cuam tshuam rau kev demolding ntawm cov khoom xws li pwm nruj, demolding kuj, ejection mechanism, thiab lwm yam.
1.2.1.1 Pwm nruj
Roj hmab pwm feem ntau siv cov pwm sib xyaw ua ke, yog li muaj kev cuam tshuam los yog qhov sib txawv ntawm cov pwm. Nyob rau hauv cov txheej txheem ntau lawm, nyob rau hauv qhov kev txiav txim ntawm clamping quab yuam los yog txhaj tshuaj, pwm qhov chaw yog nquag deformation, thiab thaum lub pwm qhib, cov deformations yuav ua rau kev sib txhuam ntawm cov hlau thiab hlau. Yog hais tias lub elastic rebound loj, nws kuj yuav ua rau lub extrusion quab yuam ntawm cov roj hmab thiab cov pwm nto, yuam kom qhov chaw ntawm lub thav duab los ua ib tug arc, thiab cov khoom siv roj hmab yog extruded los ntawm nkhaus ncej seam. Raws li qhov tshwm sim, pwm qhib qhov tsis kam nce, ua rau muaj kev nyuaj rau kev demolding, ua rau cov khoom tsim kua muag, thiab txawm tias cov pwm yuav tsum tau muab pov tseg (feem ntau cov khoom muaj cov khoom siv hlau). Yog li ntawd, pwm tsim yuav tsum xyuas kom meej tias cov molded qhov chaw muaj txaus rigidity.
1.2.1.2 Demolding kuj
Thaum cov khoom raug demolded, nws yog ib qho tsim nyog yuav tsum kov yeej cov pwm qhib tsis kam thiab ejection kuj. Feem ntau ntawm cov khoom tsis zoo los ntawm cov pwm tso tawm tsis zoo yog cuam tshuam nrog qhov no. Lub ejection kuj feem ntau yog los ntawm kev tuav lub zog ntawm cov khoom mus rau lub hauv paus, nrog rau lub zog los ntawm shrinkage, extrusion, bonding thiab kev sib txhuam ntawm cov roj hmab thiab steel nto. Cov rog no ntxiv los yog sib xyaw ua ke hauv ntau txoj hauv kev los cuam tshuam rau kev tso tawm ntawm cov khoom.
1.2.1.3 Ejection mechanism
Lub ejection mechanism ncaj qha cuam tshuam rau cov nyhuv ejection, lub demoulding ejector pas nrig feem ntau ntsia rau hauv nruab nrab txoj hauj lwm ntawm cov pwm, thiab lub cross-sectional cheeb tsam ntawm lub demoulding ejector pas nrig yuav tsum tsis txhob me me, thiaj li yuav tiv thaiv kom tsis txhob muaj zog ntau dhau nyob rau hauv ib cheeb tsam, nws yog ib qho yooj yim mus ua nyias cov khoom sab saum toj tawg los yog cov khoom nrog steel skeleton deformation. Thaum tsim cov khoom lag luam nrog thaj tsam loj thiab hnyav hnyav, txhawm rau tiv thaiv kev sib txhuam ntau dhau los ntawm kev tawm dag zog los yog kev khoov ntawm lub ejector pas nrig, lub puab tsaig yuav tsum tau nruab nrog ib daim ntawv qhia demolding ntawm txog ¢ 100mm, los yog ntau dua teeb tsa cov pwm ejector pas nrig sib dhos, tab sis nws yuav tsum tau sib npaug.
1.2.2 Kev cuam tshuam ntawm kev tsim pwm ntawm pwm tso tawm
Thaum lub sij hawm tsim pwm txheej txheem, cov kab noj hniav, core deg roughness, thiab qhov sib txawv ntawm cov mating nto ntawm cov txheej txheem ntxig yuav tsum nruj me ntsis xyuas, txwv tsis pub nws yuav cuam tshuam cov pwm tso tawm ntawm cov khoom. Qhov sib txawv ntawm qhov ntxig thiab cov mating nto yog qhov loj heev, cov roj hmab muaj cov kua dej thaum ua kom sov, thiab cov roj hmab tau yooj yim rau nyem thaum lub sij hawm pwm filling txheej txheem, tsim ib tug tuab flash, uas cuam tshuam lub demolding thiab cov khoom zoo li. Tsis tas li ntawd, rau qhov sib sib zog nqus-cav nyias-walled cov khoom, thaum ejected, lub tshuab nqus tsev yog tsim nyob rau saum npoo ntawm ib feem thiab cov tub ntxhais, uas ua rau nyuaj rau demolding. Yog li ntawd, thaum cov pwm tsim, cov tub ntxhais yuav tsum muaj qhov tsim nyog cov cua nkag qhov los yog cov tub ntxhais saum npoo yog qhov ntxhib (tsis cuam tshuam qhov zoo ntawm cov khoom), uas yog qhov tsim nyog rau pwm tso tawm.
1.3 Kev cuam tshuam ntawm cov txheej txheem ntau lawm tsis nyob rau hauv pwm tso tawm
Cov txheej txheem ntau lawm tsis muaj feem xyuam rau qhov tsis zoo ntawm cov khoom, ntawm cov kev txhaj tshuaj siab, tuav lub siab, vulcanization kub, kua nplaum cov ntsiab lus, vulcanization sij hawm, thiab lwm yam. Thaum txhaj tshuaj siab dhau lawm, nws yuav ua rau elastic deformation ntawm pwm qhov chaw thiab ua rau extrusion quab yuam. Yog hais tias lub sij hawm tuav ntev dhau lawm, lub siab nyob rau hauv pwm kab noj hniav nce, uas yuav ua rau lub shear quab yuam thiab molecular orientation kev nyuaj siab nce. Nyob rau tib lub sijhawm, tuav lub zog txhaj tshuaj yog siab dhau lawm thiab lub sijhawm ntev dhau, uas tseem yuav ua rau cov txheej txheem txhaws, ua rau muaj kev ntxhov siab loj, thiab tseem ua rau lub cev deformation ntawm pwm qhov chaw lossis lub teeb ntawm qhov chaw mating, ua rau demolding nyuaj dua. Vulcanization kub, roj hmab cov ntsiab lus tus nqi, vulcanization lub sij hawm muaj feem xyuam rau lub shrinkage tus nqi ntawm cov roj hmab, vulcanized roj hmab yog ib qho yooj yim los tsim rov qab mus rau lub qub tshwm sim ntawm kub, loj shrinkage tus nqi ntawm roj hmab tom qab vulcanization, vulcanization, me me shrinkage. Cov roj hmab cov ntsiab lus siab dua, qhov ntau dua qhov shrinkage, cov roj hmab cov ntsiab lus qis dua, qhov me me, lub sijhawm vulcanization ntev dua, qhov ntau dua qhov sib txuas ntawm qhov sib txuas, qhov me me shrinkage tus nqi, lub sij hawm luv luv vulcanization, me me ntawm crosslinking lub sij hawm, lub shrinkage tus nqi yog loj, thiab lub shrinkage tus nqi yog loj nyob rau hauv cov nqe lus ntawm cov txheej txheem yog loj, los yog undervulcanization. qhov tsawg kawg nkaus shrinkage tus nqi yog loj xwb nyob rau hauv qhov zoo vulcanization point, thiab tuav lub zog ntawm cov pwm nrog complex core thiab insert qauv kuj loj, uas yog tsis conducive rau lub demolding ntawm cov khoom.
1.4 Kev cuam tshuam ntawm kev ua haujlwm ntawm pwm tso tawm
Ib khub ntawm cov pwm pwm zoo, xws li siv cov khoom siv roj hmab tib yam thiab siv tib cov txheej txheem ntws, vim yog cov neeg ua haujlwm sib txawv thiab cov txheej txheem, cov nyhuv tso tawm kuj txawv. Yog li ntawd, nws yog ib qho tsim nyog yuav tau paub txog thiab paub txog cov txheej txheem demolding ntawm cov khoom kom tau txais cov txiaj ntsig zoo demolding. Nov yog qee qhov kev tso tawm tsim nyog:
(1) Kev taw qhia demolding yog ib txoj hauv kev rau cov khoom siv roj hmab kom tshem tawm cov khoom los ntawm cov pwm kab noj hniav thiab cov tub ntxhais pwm, uas yog tsim rau cov khoom me me thiab cov khoom siv roj hmab uas muaj zog hardness.
(2) Mechanical demolding feem ntau yog siv rau kev txhaj tshuaj molding pwm, tuag-casting pwm thiab lwm yam khoom siv roj hmab loj.
(3) Cua demolding yog siv cov cua compressed los yog lub tshuab nqus tsev nqus lub khob kom tshem tawm cov khoom, nws qhov loj tshaj plaws yog: ua kom yooj yim rau pwm qauv, txo lub sijhawm qhib thiab kaw, txo kev siv zog, thiab txhim kho kev tsim khoom.
(4) Deformation demolding feem ntau yog siv cov elasticity thiab zoo elongation ntawm roj hmab, siv yuam compression los yog elongation deformation, thiaj li yuav tau txais cov nyhuv demolding.
(5) Pwm core demolding yog txhawm rau tshem tawm lossis nias tawm lub hauv paus pwm tub ntxhais thaum demolding, thiab tom qab ntawd qhib pwm rau demold, uas yog qhov tsim nyog los xyuas kom meej qhov zoo ntawm cov khoom thiab cov nyhuv demolding.
(6) Ntxig demolding yog tsim rau ntau txoj kev los yog cov khoom nrog inserts.
1.5 Qhov cuam tshuam ntawm kev kho pwm ntawm pwm tso tawm
Ib khub pwm nrog cov qauv tsim nyog, txhawm rau txhawm rau txuas nws lub neej kev pabcuam thiab ua kom cov khoom zoo, ntxiv rau kev siv ceev faj, koj yuav tsum tau ua tib zoo saib xyuas pwm. Tom qab siv pwm, cov khoom hauv qab no yuav tsum tau kuaj xyuas:
(1) Txawm tias cov pwm yog deformed, tshwj xeeb tshaj yog cov pwm kab noj hniav los yog pwm ncej. Tom qab cov pwm yog deformed, nws tsis haum rau demolding ntawm cov khoom siv roj hmab nrog cov pob txha steel lossis siab hardness.
(2) Seb puas muaj xoob thiab cov plaub hau rub hauv qhov mating. Yuav muaj qhov khoob thiab cov cim thaum cov pwm yog xoob thiab rub tawm, thiab tom qab cov khoom siv roj hmab tau nyem, nws nyuaj rau tso cov pwm, thiab txawm tias cov khoom tawg.
(3) Seb qhov kev tso cai yog txhim khu kev qha. Cov kab noj hniav pwm feem ntau yog ua los ntawm ntau cov qauv muab tso ua ke, thiab qhov chaw tsis raug yuav ua rau qhov khoob lossis deformation ntawm pwm.
(4) Seb qhov saum npoo ntawm pwm kab noj hniav yog du thiab qhov teeb meem fouling zoo li cas. Tom qab cov pwm kab noj hniav yog xeb los yog fouled, kev sib txhuam loj yuav raug tsim thaum lub sij hawm demolding, uas tsis haum rau demolding ntawm cov khoom.
(5) Txawm hais tias qhov sib xyaw ua ke ntawm cov tub ntxhais thiab ejector accessories hauv pwm ua tiav.
Yog tias muaj cov teeb meem saum toj no, cov pwm yuav tsum tau kho, ntxuav, rustproof, thiab lwm yam.
2 Kev ceev faj
Cov saum toj no tsom xam cov kev cuam tshuam ntawm ntau yam ntawm cov khoom demolding, thiab muab tso rau pem hauv ntej coj countermeasures rau txhua influencing yam. Cov kev ntsuas tseem ceeb kom tsis txhob muaj pwm tso tawm tsis zoo tuaj yeem ua rau:
(1) Cov qauv khoom yog yooj yim rau demold, thiab yuav tsum muaj qhov demolding txaus.
(2) Cov qauv pwm yog qhov tsim nyog, thiab cov pwm nruj yog txhim kho kom ntau li ntau tau.
(3) Tsim nyog txiav txim siab cov txheej txheem ntau lawm.
(4) Txhim kho qib kev ua haujlwm ntawm cov neeg ua haujlwm.
(5) Ua tib zoo saib xyuas pwm.
(6) Txo kev sib txhuam thiab siv cov pwm tso tawm tsim nyog.
(7) Xaiv tus qauv tsim nyog thiab tsim nyog viscosity.
