Iindaba

Ukucacisa indawo ye-screw enye, thumela amaqela amane olwazi: umatshini kunye neenkcukacha ze-interface, irekhodi elilawulwayo elilinganiselweyo, izinto ezicwangcisiweyo kunye nomsebenzi wokusebenza, kunye neemfuno ezicacileyo zokwamkelwa. Isampulu egugileyo iyanceda, kodwa bubungqina bokubini uyilo lokuqala kunye nomonakalo olandelayo. Umzi-mveliso kufuneka wahlule phakathi kwezi zimbini phambi kokuba uvume umzobo.

Inkqubo yokuvelisa i-screw kunye ne-barrel ngokuqhelekileyo ibandakanya ukuphononongwa kwesicelo, ukukhethwa kwezinto kunye nomgangatho wenkqubo, ukulungiswa okungenanto, i-rough and finish machining, unyango lobushushu okanye ukuqina, ukugqiba ngokuchanekileyo, ukuhlolwa kwe-dimensional kunye nokupakishwa okukhuselweyo. Umyalelo awukho jikelele. Kufuneka kucwangciswe malunga nejometri, unyango kunye nemilinganiselo yokugqibela yecandelo elithile.

I-parallel twin screw extruder inezikrufu ezibini eziguquguqukayo ezinodayamitha ezidibanisayo ezakhiwe kwizinto ezimodyuli. Uninzi luyajikeleza, lusebenza ngesantya esiphezulu sokuxubana okunzulu - okubenza babe ngumatshini oqhelekileyo wokudibanisa, i-masterbatch, i-WPC kunye ne-pelletizing. Ngokungafaniyo nomatshini we-conical, iprofayili ye-screw ingaphinda yakhiwe kwi-formulation entsha nganye.

Isikrufu somgqomo omnye sisikrufu esinye esijikelezayo ngaphakathi kwibhere eshushu yesilinda, ukuhambisa, ukunyibilika kunye nokumpompa iplastiki ngokufa. Ukusebenza kumiselwe ikakhulu zizinto ezintathu: umlinganiselo we-L / D, umlinganiselo wokunyanzeliswa kunye nohlobo lwe-screw (umgangatho, umqobo okanye ukuxuba). Lolona khetho lunoqoqosho oluphezulu lwemveliso ye-extrusion ye-uniform material - ukuvuthela ifilimu, umbhobho ovela kwiipellets, ishidi kunye negranulation.

I-twin screw extruder isebenzisa izikrufu ezibini ezidibanisayo ngaphakathi kumbhobho ongamawele ukondla, ukunyibilikisa, ukuxuba kunye nokumpompa iplastiki ngedayisi. Iintsapho ezimbini eziphambili ziyi-conical (i-tapered screws, eyona nto ingcono kwipayipi ye-PVC ngqo, iprofayili kunye ne-extrusion yebhodi) kunye ne-parallel (i-contant-diameter, i-screws edibeneyo, eyona nto ingcono ukudibanisa, i-granulation kunye ne-high-filler mixing).

I-parallel twin screw barrel inezikrufu ezibini ezihlanganayo ezinodayamitha engaguqukiyo ezihamba icala ngecala kumbhobho ongamawele adibanayo. Ngokungafaniyo ne-conical barrel, izikrufu zihlala zilingana ekupheleni ukuya ekupheleni, kwaye umgqomo uvame ukwakhiwa ukusuka kumacandelo. I-Co-rotating parallel screws isuti yokudibanisa, igranulation kunye ne-masterbatch; i-counter-rotating parallel screws suit PVC kunye nomsebenzi wokuzalisa okuphezulu.