Casting yog ib hom kev ua yas ua. Nyob rau theem pib ntawm casting, kua monomers los yog prepolymers (saib polymers) tau txhaj rau hauv pwm ntawm atmospheric siab, ces ua kom tiav thiab tsim ua cov khoom nrog tib cov qauv li cov kab noj puab cov pwm. Nyob rau xyoo pua 20th, phenolic rein yog thawj tsim los ntawm casting.
Hauv nruab nrab lub sijhawm xyoo 1930, PMMA tau raug ntiab tawm ntawm lub prepolymer ntawm methyl methacrylate (saib polymethyl methacrylate). Lub sij hawm Ntiaj Teb Tsov Rog Thoob Ntiaj Teb thib 2, tau tsim cov polystyrene uas tsis tsim nyog, tau ua raws li epoxy cov yeeb nkab, thiab nylon monomer casting nyob rau xyoo 1960 (saib polyamide). Nrog rau txoj kev loj hlob ntawm kev siv technology, cov tswvyim ntawm casting tau hloov lawm. Polymer tov, dispersion (xa mus rau PVC muab tshuaj) thiab yaj kuj siv tau rau hauv molding. Polypropylene zaj duab xis yog npaj los ntawm extruding melted ca film nyob extruder thiab casting on txias nruas. Nws yog hu ua extrusion-casting txoj kev.
Ningbo QS Machinery Inc
Chaw nyob: Shiyangsi, Hengxi, Yinzhou, Ningbo, Zhejiang, 315131 Tuam Tshoj
Xov tooj: + 86-574-88065065
Fax: + 86-574-88065066
Txawb Xov Tooj: + 86-15957878688
E-mail: sales@qs-casting.com
