Muaj ntau txoj hauv kev rau kev tsim cov khoom hollow siv yas, thiab kev sib hloov molding (los yog rotational casting) tej zaum yuav yog ib qho ntawm cov txheej txheem kev lag luam zoo tshaj plaws uas peb muaj ntawm peb qhov kev pov tseg. Cov ntaub ntawv qhia no yuav suav nrog kev siv thev naus laus zis ntxiv, nws cov txiaj ntsig tseem ceeb, thiab lwm yam ntaub ntawv tseem ceeb.
rotational molding yog dab tsi?
Rotational molding (rotational molding) yog kev tsim khoom siv tshuab. Tshaj li 20 xyoo dhau los, cov thev naus laus zis no tau txhim kho tseem ceeb, thiab ntau thiab ntau lub tuam txhab tau siv cov txheej txheem ntau yam no txhua hnub. Cov hmoov yas yog ntxiv rau lub plhaub -puab pwm, thaum tig thiab cua sov los tsim qhov khoob. Nyob rau hauv cov txheej txheem no, cov hmoov melts mus rau hauv lub npuas - cov kua dawb txheej, ua rau sab hauv ntawm pwm. Tom qab ntawd cov khoom yog txias thiab qhov hollow seem raug tshem tawm. Cov txheej txheem no feem ntau yog siv los tsim cov thawv ntim khoom (saib daim duab hauv qab no), tab sis nws kuj tuaj yeem siv los tsim cov khoom siv kho mob nyuaj, cov khoom ua si, khoom siv tes ua si, thiab lwm yam.
Cov khib nyiab lub hau tsim los ntawm kev siv tshuab molding tshuab muaj qhov zoo dua.
Ua hauj lwm hauv paus ntsiab lus ntawm rotational molding
Ua ntej, hmoov polymer (tsuas yog polyethylene) yog thauj mus rau hauv cov pwm hlau. Xwb, cov khoom hlau tuaj yeem muab tso rau hauv pwm thiab ua ke rau hauv cov duab kawg.
Tom qab ntawd, cov pwm yog muab tso rau hauv ib lub qhov cub thiab tig raws ob axes. Nyob ntawm cov khoom siv, qhov kub tuaj yeem tswj tau ntawm 500℃F thiab 680℃F (260℃thiab 370 degree). Thaum lub sijhawm txheej txheem no, cov khoom siv melted yuav ua raws li cov pwm sab hauv.
Tom qab cov khoom molten tsim ib yam khoom, nws yog txias thiab tshem tawm. Tom qab ntawd, cov pwm yog rov ua dua, thiab cov txheej txheem rov ua dua raws li xav tau.
Txiav cov pwm kom cais tawm (cov kab lossis cov kab uas tshwm sim ntawm cov pwm sib cais). Nyob rau theem no, koj tuaj yeem ntxiv qee qhov me me, xws li lub qhov, ntsia hlau, thiab cov qhov.
- Ntxiv cov khoom rau hauv pwm
- Melt cov khoom hauv pwm
- Txias pwm
- post- ua
Cov cuab yeej siv rau kev sib hloov molding
Cov khoom siv sib hloov molding muaj xws li qhov cub, chav txias txias, thiab pwm spindle. Cov pwm feem ntau yog ua los ntawm txhuas alloy los ntawm Computer Numerical Control (CNC) machining lossis hlau casting. Cov hom no yog tuab ntau dua li cov khoom zoo sib xws ua los ntawm cov hlau tsis muaj steel. Nyob ntawm qhov loj thiab qhov nyuaj ntawm qhov, cov pwm tuaj yeem ua los ntawm welded steel daim hlau.
Cov khoom siv rau kev sib hloov molding
Feem ntau ntawm cov ntaub ntawv siv nyob rau hauv rotational molding yog los ntawm polyethylene hom (kwv yees li 80%), uas feem ntau yog:
- Hla -txuas polyethylene (PEX)
- Tsawg- ntom polyethylene (LDPE)
- Linear low -density polyethylene (LLDPE)
- High- ntom polyethylene (HDPE)
Cov ntaub ntawv no kuj muaj lwm yam khoom, xws li polyvinyl chloride (PVC) plastisol, nylon, thiab polypropylene. Cov kev cai tseem ceeb rau cov ntaub ntawv yog:
- Siab thermal stability
- Txaus antioxidant zog
- Ductility (yooj yim ntws los ntawm txhua qhov chaw ntawm pwm)
Daim ntawv thov ntawm rotational molding
Kev sib hloov moulding feem ntau yog siv rau kev tsim khoom lag luam cia tank thiab ntim khoom. Tsis tas li ntawd, nws pom cov ntawv thov hauv ntau qhov chaw, suav nrog:
- Septic tank
- Tshuaj cia tank
- Roj tank
- Roj tank
- Kev kho dej tank
- Tsheb thauj mus los
- Tsheb npav
- Thawv
- Cov khoom ua si thiab cov khoom ua si lom zem
- Khoom siv
- Kev lag luam marine
Rotational molding lossis txhaj tshuaj molding?
Zoo li lwm txoj hauv kev, rotational molding muaj qhov zoo thiab qhov tsis zoo hauv kev tsim tshuab. Nws feem ntau piv rau kev txhaj tshuaj molding (IM). Rotational molding thiab txhaj tshuaj molding yog ob txoj kev siv dav hauv ntau yam lag luam. Lawv muaj ntau qhov sib xws thiab qee zaum tuaj yeem hloov pauv tau, tab sis feem ntau, ob lub thev naus laus zis no tsim nyog rau cov xwm txheej sib txawv.
Piv rau kev txhaj tshuaj molding, rotational molding muaj qhov tsis zoo hauv qab no:
- Qhov nyuaj ntawm pwm tsim yog qhov tsawg
- Tsawg kam rau ua
Qhov zoo ntawm rotational molding:
Txawm hais tias rotational molding yog suav tias yog qhov tsawg dua qhov kev txhaj tshuaj molding thiab muaj lub sijhawm voj voog ntev (1-2 cycles ib teev piv rau ob peb vib nas this rau kev txhaj tshuaj molding), nws tseem muaj qee qhov tshwj xeeb zoo uas ua rau nws hloov tsis tau.
- Cov kev hloov tseem ceeb hauv qhov chaw polishing thiab xim
- Tus tsim qauv dawb
- uniform phab ntsa thickness
- durability
- Kev ntxhov siab - khoom pub dawb
- ruaj khov thiab lub teeb yuag ib txhij molding
- Yuav luag tsis muaj cov khoom pov tseg
- Tus nqi pheej yig pwm khoom siv
- Phab ntsa muaj zog heev
Ntxiv nrog rau lwm cov txheej txheem yas molding, rotational molding thev naus laus zis tuaj yeem tsim cov khoom lag luam uas muaj zog dua, hloov tau yooj yim, muaj qhov chaw du, thiab nthuav tawm cov phab ntsa zoo ib yam. Qhov chaw tsim khoom siv cov txheej txheem no muaj ntau cov yas nyob rau hauv cov ces kaum sab nrauv thiab sab ntawm pwm. Tsis tas li ntawd, vim qhov zoo ntawm kev sib hloov moulding, cov khoom tiav tau ntsib kev ntxhov siab tsawg dua, ruaj khov dua, thiab tseem muaj qhov hloov tau yooj yim. Nws tseem tuaj yeem txo qhov kev pheej hmoo ntawm cov kab nrib pleb hauv cov khoom kawg. Thov xa mus rau peb cov ntawv qhia kev tsim khoom kom paub ntau ntxiv txog kev txhaj tshuaj molding.
- Nqi
Tus nqi pwm yog tsawg dua 1/5 ntawm tus nqi ntawm cov tshuab moulding thiab txhaj tshuaj molding, uas txhais tau hais tias cov nqi qis dua nyob rau hauv nruab nrab thiab luv luv, uas yuav luag tsis muaj kev hloov pauv zoo.
- Zoo
Lub precision, sib xws, tsos, thiab kev ntxhib los mos ntawm cov khoom tsim los ntawm kev sib hloov molding yog impressive, thiab lawv cov zoo yog piv rau cov khoom uas ua los ntawm lwm yam txheej txheem, nrog ib tug piv ntawm ib feem phab ntsa piv.
Kev txhaj tshuaj molding yog qhov zoo dua
- Yooj yim
Tsis zoo li cov txheej txheem xws li kev txhaj tshuaj molding, txoj kev no tuaj yeem siv los tsim cov duab zoo heev thiab tseem tso cai rau kev hloov pauv ntawm phab ntsa tuab yam tsis tas yuav rov ua dua.
- Ceev
Los ntawm lub tswv yim mus rau kev tsim khoom, lub voj voog xa khoom rau cov khoom siv sib hloov molding yog luv dua li lwm cov txheej txheem.
- Ntau yam kev kho deg
Rotational molding tuaj yeem muab ntau yam ntawm cov npoo du lossis textured, txhim kho qhov zoo ntawm cov khoom kawg ntawm tus nqi qis.
- Ntau- lub hom phiaj
Qhov no yog ib tug tiag tiag ntau yam yas molding tshuab uas yuav siv tau los tsim ib tug ntau yam ntawm cov khoom thiab yog haum rau ntau yam lag luam industries.
