Cov Kev Ceeb Toom Thaum Siv Lub Tshuab Extrusion Sheet

Peb yuav tsum xyuam xim rau cov teeb meem twg thaum lub sijhawm ua haujlwm ntawm lub tshuab ntawv?

(1) Qhov kub ntawm txhua ntu ntawm lub thoob ntawm cov khoom siv tsim cov ntawv yas maj mam nce ntxiv los ntawm qhov chaw pub mis mus rau qhov kev sib txuas ntawm lub thoob thiab lub pwm tsim.

(2) Qhov kub ntawm pwm siab dua qhov kub ntawm lub thoob me ntsis. Qhov kub siab dua raug tswj ntawm 5---10 ℃. Qhov kub ntawm ob sab ntawm pwm siab dua qhov kub hauv pwm me ntsis, thiab qhov kub siab dua raug tswj ntawm 5-10 ° C.

(3) Hauv daim ntawv ntawm daim ntawv ntxig, qhov saum npoo ntawm lub menyuam nruab nrab ntawm peb-roller yuav tsum nyob rau ntawm lub dav hlau kab rov tav nrog lub dav hlau qis dua ntawm daim di ncauj pwm; qhov kawg ntawm daim di ncauj yuav tsum sib luag rau kab nruab nrab ntawm lub menyuam nruab nrab, 50 ~ 100 hli sib nrug.

(4) Qhov sib txawv ntawm daim di ncauj pwm yuav tsum tsawg dua lossis sib npaug rau qhov tuab ntawm cov khoom phaj, thiab qhov sib txawv hauv nruab nrab ntawm daim di ncauj pwm yuav tsum me dua li qhov sib txawv ntawm daim di ncauj kawg ntawm ob sab.

(5) Nco ntsoov tias qhov roughness R ntawm qhov chaw ua haujlwm peb-roller yuav tsum tsis txhob ntau tshaj 0.2 teev tsaus ntuj. Thaum ntxuav qhov chaw ntawm lub roller, tsis txhob siv riam hlau tawv los khawb qhov chaw ntawm lub roller. Yuav tsum siv riam tooj liab los ntxuav cov khoom seem ntawm qhov chaw ntawm lub roller.

(6) Lub nto ntawm lub roller yuav tsum muaj qee qhov siab nruab nrab; qhov sib txawv ntawm peb lub log yuav tsum sib npaug los yog me ntsis loj dua li qhov tuab ntawm lub phaj.

(7) Kev tswj qhov kub ntawm cov pwm yuav tsum ruaj khov. Thaum qhov kub siab, cov yaj ntws hauv cov pwm sai dua; thaum qhov kub qis, cov yaj ntws hauv cov pwm qeeb dua. Qhov nrawm ntawm cov yaj ntws tsis ruaj khov yuav ua rau muaj qhov yuam kev loj ntawm cov phaj (ntawv).

(8) Ua tib zoo saib xyuas qhov kub ntawm qhov chaw ua haujlwm ntawm peb lub rollers. Qhov kub ntawm cov yeeb yaj kiab nkag mus rau hauv lub roller yuav tsum siab dua me ntsis thiab qhov kub ntawm cov yeeb yaj kiab tawm ntawm lub roller yuav tsum qis dua me ntsis. Yog tias qhov kub ntawm qhov chaw ntawm lub roller siab dhau, lub slab yuav tsis yooj yim tshem tawm ntawm lub yob, thiab cov kab rov tav yuav yooj yim tshwm sim ntawm qhov chaw ntawm cov khoom; yog tias qhov kub qis dhau, qhov chaw ntawm cov khoom yuav tsis ci. Raws li qhov xwm txheej no, kev tswj qhov kub ntawm qhov chaw ntawm lub roller yuav tsum tau kho raws sijhawm.

(9) Qhov ceev ntawm peb lub rollers yog me ntsis siab dua qhov ceev ntawm lub slab los ntawm lub qhov ncauj tuag, thiab qhov sib txawv ntawm qhov ceev feem ntau tsis pub tshaj 10%. Qhov ceev ua haujlwm ntawm peb lub rollers yuav tsum tau tswj hwm kom du. Qhov ceev khiav ceev dhau lossis qeeb dhau yuav muaj kev cuam tshuam loj rau qhov yuam kev tuab ntawm lub phaj.

(10) Thaum extruding polyolefin plastics los ua cov phaj (cov ntawv), lub hau ntswj txais yuav cov qauv hloov pauv, qhov sib piv ntawm kev sib txuas yog (3-4): 1, thiab qhov ntws ntawm cov yaj yog: HDPE 0.3 ~ 2.0g / 10 feeb, LDPE 0.1 ~ 0.3g / 1Omin, PP 0.5 ~ 1. 5g / 10 feeb. Rau cov tsis-crystalline polymer resin extrusion molding boards (cov ntawv) xws li ABS, yuav tsum siv lub hau ntswj gradient, nrog rau qhov sib piv ntawm (1.6 txog 2.5): 1.

(11) Hauv kev txhaj tshuaj molding ntawm cov phaj yas (cov ntawv), tsuas yog tias polyvinyl chloride, polyethylene thiab polypropylene resins feem ntau tsis dhau kev kho dehumidification ua ntej extrusion, qee cov yas lwm yam (xws li ABS, polyamide, thiab lwm yam) yuav tsum tau dehumidified ua ntej extrusion. Dehumidification thiab ziab yog qhov yuav tsum tau ua. Txwv tsis pub, lub tshuab extruder vented yuav tsum tau siv rau extrusion molding.