Hauv kev tsim thiab tsim cov khoom siv tau yooj yim peb - ntsia hlau extruders, cov khoom xaiv ncaj qha cuam tshuam rau cov khoom siv hnav tsis kam, corrosion resistance, thermal stability, thiab tag nrho cov kev pab cuam lub neej.Vim tias hom extruder no ua rau nyuaj shearing ntawm ntau cov ntsia hlau, siab - siab melting, thiab nquag thermal cycling thaum lub sij hawm ua hauj lwm, thiab tej zaum yuav ntxiv formulations, high viscosity thiab viscos filling. cov ntaub ntawv, cov kev xav tau siab dua yog muab tso rau ntawm cov ntaub ntawv ntawm txhua qhov tseem ceeb. Kev xaiv cov khoom tsim nyog thiab tsim nyog tsis yog tsuas yog txhim kho kev ntseeg siab ntawm cov cuab yeej ua haujlwm tab sis kuj txo cov nqi tu thiab ua kom ruaj khov ntawm cov khoom zoo.
Cov ntsia hlau thiab lub thoob yog lub hauv paus quab yuam- bearing thiab tshav kub- hloov cov khoom ntawm lub extruder, thiab lawv cov ntaub ntawv yuav tsum muaj ob qho tib si zoo heev mechanical zog thiab hnav tsis kam. Feem ntau siv cov ntaub ntawv hauv paus yog siab- zoo alloy steel, uas dhau mus quenching thiab tempering kom tau ntau dua toughness thiab lub zog. Rau siab - hnav khaub ncaws hnav, hnav- cov coatings tiv taus lossis cov txheej tawv tawv, xws li tungsten carbide lossis npib tsib xee- cov alloys, tuaj yeem siv rau saum npoo kom txhim kho qhov tawv tawv thiab khawb tsis kam. Rau kev ua cov tshuab uas muaj iav fiber ntau, cov ntxhia hauv cov dej ntxhia, lossis cov khoom siv corrosive, cov hlau tsis muaj steel lossis cov hlau tshwj xeeb uas muaj kev tiv thaiv corrosion yuav tsum tau xaiv. Kev kho mob lossis kev laus yuav tsum tau ua ua ntej ua haujlwm kom paub meej cov qauv kev ntseeg siab thiab qhov ruaj khov nyob rau hauv qhov kub thiab txias.
Iav, bearings, thiab couplings nyob rau hauv lub tshuab kis tau tus mob kuj yuav tsum tau xaiv cov khoom meej. Cov iav feem ntau yog ua los ntawm carburized thiab quenched steel los yog nitrided steel, ntsuas qhov tawv tawv thiab cov tub ntxhais toughness, tiv taus qaug zog spalling thiab pitting thaum lub sij hawm siab torque kis tau tus mob. Cov kabmob zoo dua yog ua los ntawm siab -kub cov menyuam bearing steel lossis ceramic dov cov ntsiab lus kom tiv taus ntev - lub sij hawm siab - kev khiav hauj lwm ceev thiab tuav qhov coefficient ntawm kev sib txhuam. Couplings yuav tsum tau xaiv raws li cov khoom siv elastic modulus thiab ntsuas kub tsis kam los xyuas kom meej kev sib kis tau zoo nyob rau hauv cov khoom hnyav tsis muaj deformation ntau dhau.
Flanges, kav dej, thiab cov ntsaws ruaj ruaj koom nrog hauv cov cua sov thiab cua txias yuav tsum zoo dua yog ua los ntawm cov cua sov-tiv taus, siab- cov ntaub ntawv tiv taus nrog thermal conductivity zoo. Lub thoob cua sov coil kho cov khoom feem ntau siv siab - kub resistant stainless hlau los yog aluminium alloy los xyuas kom meej tias lawv tsis yooj yim oxidized thiab tsis nyob rau hauv siab - kub ib puag ncig. Cov kav dej txias thiab cov pob qij txha tuaj yeem ua los ntawm tooj dag lossis stainless hlau, ntsuas kev tiv thaiv corrosion thiab thermal conductivity. Cov ntsaws ruaj ruaj feem ntau siv fluororubber los yog polytetrafluoroethylene (PTFE) los tiv thaiv dej kub hloov thiab tshuaj corrosion.
Tsis tas li ntawd, kev xaiv cov khoom siv rau cov khoom siv elastic nyob rau hauv qhov hloov pauv peb - ntsia hlau qauv yog qhov tseem ceeb tshwj xeeb. Cov khoom no yuav tsum tau tiv thaiv rov qab loads thiab kub hloov thaum tswj kom txaus elastic deformation. High- lub zog caij nplooj ntoos hlav steel lossis cov cim tshwj xeeb zoo li alloys feem ntau yog siv, thiab lawv tau ua ntej - ncab thiab kho cua sov kom ntseeg tau tias lawv tsis raug cov yas deformation lossis qaug zog tawg thaum lub sijhawm ua haujlwm ntev -.
Zuag qhia tag nrho, kev xaiv cov khoom siv rau kev hloov pauv peb -screw extruder yuav tsum yog raws li kev soj ntsuam dav dav ntawm cov yam ntxwv ntawm cov khoom siv, kev ua haujlwm, thiab kev cia siab rau lub neej. Los ntawm kev ntxiv dag zog rau matrix, kev tiv thaiv nto, thiab kev ua haujlwm sib luag, qhov sib npaug ntawm kev hnav tsis kam, corrosion kuj, thiab siab thermal stability tuaj yeem ua tiav. Tsuas yog los ntawm kev sib txuas cov khoom siv nrog cov khoom siv kho kom zoo tuaj yeem ua qhov zoo ntawm cov cuab yeej no hauv siab -kawg polymer ua tiav siv, muab kev lav zoo rau kev tsim khoom ruaj khov thiab kev txhim kho zoo.