Ib, Kev Txhim Kho ntawmRotational Moulding
Nyob rau hauv txawv teb chaws, rotational molding yog ib qho ntawm cov txheej txheem siv yas molding. Xyoo 1940, PVC muab tshuaj txhuam tau siv los tsim cov khoom ua si xws li cov pob yas los ntawm kev sib hloov molding. Nyob rau xyoo 1950, cov txheej txheem polyethylene rotational molding siv cov khoom siv qis polyethylene hmoov resin raws li raw khoom tau tsim los tsim cov khoom lag luam xws li polyethylene cia tso tsheb hlau luam thiab cov kav dej loj, uas txhawb kev loj hlob ntawm cov txheej txheem sib hloov molding. Txij thaum ntawd los, nylon, polycarbonate, ABS thiab lwm yam yas kuj tau molded los ntawm cov txheej txheem molding. Los ntawm thaum ntxov 1970s, rotational molding tau dhau los ua cov txheej txheem yas loj loj.
Xyoo 1971, muaj ntau dua 50 lub tuam txhab koom nrog kev tsim cov khoom lag luam molding nyob rau hauv UK, thiab txog 70 manufacturers ntawm rotational molding thermoplastics; Muaj ntau tshaj 20 tuam txhab uas muag koom nyob rau hauv rotational molding ua nyob rau hauv lub teb chaws Europe, nrog rau cov tuam txhab uas muag los ntawm lub teb chaws Yelemees, Fabkis, Switzerland, Norway, Austria, Denmark thiab lwm lub teb chaws.
Thaum ntxov xyoo 1970, Tebchaws Askiv muaj peev xwm muab lub tshuab yob molding muaj peev xwm tsim cov thawv ntim nrog lub peev xwm ntawm 18000L; Lub Netherlands tau tsim lub tank loj cylindrical nrog txoj kab uas hla ntawm 2.1m thiab ntev ntawm 4.8m. Lub tank yog 540kg thiab phab ntsa thickness yog 25mm. Nyob rau hauv 1970, tag nrho cov ntim ntawm rotational molding khoom nyob rau hauv cov teb chaws Europe mus txog ntau tshaj 15000t, nrog rau txog 7000t nyob rau hauv teb chaws Aas Kiv.
Xyoo 1970, ntau tshaj 500 units hauv Tebchaws Meskas tau koom nrog kev tsim cov khoom sib hloov molding. Lawv muaj ntau tshaj 500rotational molding tshuab, thiab lub peev xwm ntawm rotational molding ntim tau tshaj 10000 L (2400 nkas loos); Qhov siab tshaj plaws yas qhov chaw tsim los ntawm yob molding tshuab yog 4.6× 4 pkt 6× 2.1m ua.
Nyob rau xyoo 1960, txoj kev loj hlob sai ntawm kev sib hloov moulding tshuab tau zoo cuam tshuam nrog kev txhim kho cov khoom siv thiab cov khoom sib hloov molding. Nyob rau lub sijhawm no, ntau cov yas tshwj xeeb rau kev sib hloov molding tau tsim, xws li PE P-320, Raychem Flamolin 771 thiab lwm yam polyethylene resins tsim los ntawm United Carburization Company. FE P-320 yog hom tsawg-ntom polyethylene, cov tshuaj lom neeg tsis kam ntawm cov qib siab-ntom ntom polyethylene cob; Raychems F1amo1in 711 yog tus ntoo khaub lig-txuas polyethylene cob rau rotational molding. Ntxiv nrog rau kev sib txuas sib txuas, nws kuj muaj cov cuab yeej tua tus kheej. Lub nto moo yob molding cross-linked polyethylene resin Marlex Cl-100 ntawm Philips kuj tau tsim nyob rau lub sijhawm no.
Yuav kom ua tau raws li qhov xav tau ntawm kev npaj lojrotational molding khoom, ntau lub tshuab muaj peev xwm tsim cov khoom lag luam loj rotational molding tau tsim nyob rau xyoo 1960s, uas tuaj yeem siv tau zoo hauv pem teb qhov chaw thiab lub zog kub. Xyoo 1970, ntau tshaj li ib nrab ntawm cov yob moulding tshuab muag hauv khw muaj ib txoj kab uas hla ntawm ntau tshaj 1.75m. Tsis tas li ntawd, kev tswj qib ntawm lub tshuab kuj tau txhim kho kom sib txawv. Piv txwv li, peb lub caj npab rotational molding tshuab McNeil Auronismodel 3000-200 tuaj yeem tswj cov cua sov thiab cua txias ntawm txhua sab caj npab cais, kom cov khoom sib txawv thiab cov khoom siv tuaj yeem ua rau tib lub sijhawm sib hloov pwm. Nws txoj kab uas hla yog mus txog 5m, thiab tag nrho qhov hnyav ntawm pwm thiab cob uas txhua caj npab tuaj yeem dais yog li 13500N; Lub tsho hom yob moulding tshuab nrog cov cua sov hloov pauv zoo thiab thaj chaw me me kuj tau tsim thiab tsim nyob rau lub sijhawm no.
Kev txhim kho thiab kev tshawb fawb ntawm kev sib hloov molding nyob rau hauv Suav teb kuj tuaj yeem taug qab rov qab mus rau xyoo 1960. Los ntawm lig 1960s, Shanghai khoom ua si kev lag luam tau pib siv txoj kev rotational molding los tsim mos PVC pellets txhua xyoo; Peb cov nroj tsuag ntawm Shangsu Plastics tau ua tiav kev sim ua 200L thiab 1500L yob molded polyethylene ntim; Nyob rau hauv nruab nrab-1970s, Beijing FRP Kev Tshawb Fawb Lub Tsev Haujlwm tau ua tiav qhov kev hloov pauv ntawm cov yas nylon ntim thiab siv rau hauv hav zoov tua hluav taws thiab lwm yam khoom. Txawm li cas los xij, qhov kev lag luam loj loj tiag tiag tuaj tom qab kev qhia txog qib siabkev sib hloov moldingkhoom siv thiab thev naus laus zis los ntawm txawv teb chaws hauv nruab nrab thiab lig 1980s. Tam sim no, nws tau muaj peev xwm npaj cov khoom yas loj xws li cov chaw cia khoom siv tshuaj lom neeg nrog lub thawv ntim ntau tshaj 20000L thiab cov yas siab tag nrho cov yas yachts.
Daim ntawv thov ntawm Rotational Molding
Nrog rau txoj kev loj hlob ntawm rotational molding technology, daim ntawv thov Scope ntawm rotational molding khoom tau nthuav dav tsis tu ncua. Txog tam sim no, daim ntawv thov kev sib hloov molding khoom tau dav heev. Qee cov ntawv thov sawv cev tuaj yeem ua piv txwv raws li hauv qab no.
1. Rotational yas qhov chaw rau ntim
Cov khoom yas zoo li no tau siv dav hauv cov dej cia tank, tso tsheb hlau luam rau ntau yam tshuaj ua kua (xws li kua qaub, alkali, ntsev, tshuaj chiv, tshuaj tua kab, thiab lwm yam), cov thawv roj av (cov roj tso tsheb hlau luam thiab cov roj tank rau tsheb thiab dav hlau), roj teeb plhaub, thiab lwm yam.
2. Rotational qhov chaw rau tsheb
Nws tsuas yog siv polyethylene thiab polyvinyl chloride paste resin, thiab yob molding ntau yam yeeb nkab fittings, xws li cua txias lub luj tshib, backrest, tes tuav, thiab lwm yam.
3.Cov khoom siv ua kis las thiab ntau yam kev hloov pauv
Muaj ntau yam PVC muab tshuaj txhuam roto molded qhov chaw, xws li dej polo, ntab pob, tsheb kauj vab cushion, nkoj me me thiab poob siab absorber ntawm nkoj thiab chaw nres nkoj. Lub rotogrammed crosslinked polyethylene chim ua los ntawm Philips 'rotogrammed crosslinked polyethylene tsob ntoo "Maricxcl-100" tuaj yeem sib tw nrog lub thoob hlau, thiab nws muaj cov tshuaj tiv thaiv corrosion zoo thiab cov nqi kho mob tsawg. Kev sib hloov palletizing tais tau ua lag luam hauv Tebchaws Meskas, Nyiv thiab lwm lub tebchaws thaum xyoo 1970s; Surfboards, nkoj, thiab lwm yam kuj yog yob molded qhov feem ntau hais nyob rau hauv cov ntaub ntawv.
4. Cov khoom ua si, qauv, khoom siv tes ua, thiab lwm yam
Vim tias cov pwm tig tuaj yeem tsim los ntawm precision casting, electroforming thiab lwm yam txheej txheem; Qhov saum npoo ntawm qhov sib hloov molded qhov chaw muaj qhov "daim ntawv" zoo ntawm cov qauv zoo ntawm cov pwm kab noj hniav. Yog li ntawd, txoj kev sib hloov molding tuaj yeem ua rau cov khoom muag muag heev thiab zoo nkauj. Yog li ntawd, nws yog feem ntau siv los ua cov khoom lag luam nrog cov nqi saib zoo, tshwj xeeb tshaj yogcov khoom ua si, qauv, handicrafts, thiab lwm yam.
5. Ntxiv rau qhov saum toj no, kuj muaj ntau yamthawv, plhaub, cov kav dej loj thiab lwm yam khoom siv dav siv raurotational molding khoom, xws li turnover boxes,cov thoob khib nyiab, tshuab plhaub, tiv thaiv npog, teeb pom kev zoo, chav dej, chav dej, chav xov tooj, yachts, thiab lwm yam.
Rotational molding khoom tau dav siv nyob rau hauv cov kua tshuaj cia thiab tsheb thauj mus los, chemical enterprises, industrial txheej,ntxuav lub tankthiab cov tshuaj tiv thaiv tso tsheb hlau luam hauv kev npaj tsawg hauv ntiaj teb, nrog rau cov dej ntws thiabhiav txwv buoys, hauv tsevcov dej tankthiab lwm yam teb.
Post lub sij hawm: Nov-15-2022