Thaum tham txog PET preform pwm, kev xaiv cov khoom yog qhov tseem ceeb, vim nws ncaj qha txiav txim siab pwm lifespan thiab zoo ntawm PET preforms. Tsuas yog saib pwm lifespan, ntau lawm voj voog tsis, thiab lwm yam, tsis txaus; yam xws li hnav tsis kam, corrosion kuj, thiab lwm yam, kuj yuav tsum tau xav txog. Rau cov qauv ua haujlwm sib txawv, cov khoom siv ntawm cov pwm pwm zoo li xaiv cov khaub ncaws - nws tsis yog ib yam khoom zoo nkaus li zoo, tab sis hais txog kev sib haum xeeb.
Cia peb pib nrog hnav tsis kam; nws tseem ceeb heev. Thaum lub sij hawm preform ntau lawm, cov yas molten tsis ntws maj mam, tshwj xeeb tshaj yog nrog cov ntaub ntawv xws li PET. Nws zoo li lub siab - siab ntws ntawm cov dej, tsis tu ncua scouring thiab rub tawm ntawm kab noj hniav / core nto. Nyob rau hauv lub sijhawm ntev siab -siab "scouring," txawm tias cov hlau hnyav tshaj plaws tuaj yeem tsim cov cim hnav. Yog hais tias qhov ntev hloov los yog nto ua puas, cov pwm yog qhov tseem ceeb tsis siv. Rau cov khoom tseem ceeb xws li pwm core thiab kab noj hniav, raws li cov chaw tsim khoom, peb ua qhov tseem ceeb ntawm kev pom zoo siab hardness, hnav resistant alloy cuab yeej steels, xws li S136 los yog AISI 422. Yog hais tias ua tau zoo, hardness ntawm HRC 52-56 tuaj yeem ua tiav, ua rau nws tiv taus ntau yam hnav thiab tsim kua muag txhua hnub. Yog tias tus neeg siv khoom muaj cov kev cai tshwj xeeb, chrome plating lossis nitriding kev kho mob tuaj yeem siv rau ntawm cov pwm saum npoo, qhov tseem ceeb muab cov pwm ua "cov cuab yeej" thiab txuas ntxiv nws txoj sia.
Cov qauv pwm, xov qhov chaw, thiab lwm yam yog qhov tseeb "tsis ncaj ncees lawm", vim lawv raug cuam tshuam rau txhua qhov haujlwm. Yog tias lawv nkig dhau lawm, lawv tuaj yeem yooj yim nti lossis tawg. Nyob rau hauv rooj plaub no, lub zog thiab toughness yuav tsum tau txiav txim siab ua ke. Lub purity ntawm cov khoom nws tus kheej, nws cov grain loj, thiab cov microstructure uas tshwm sim los ntawm kev kho cua sov zaum kawg tag nrho cov cuam tshuam nws lub peev xwm mus cuag ib tug sib npaug ntawm rigidity thiab yooj. Rau cov khoom siv loj xws li pwm thav duab, ua ntej- cov ntaub ntawv tawv xws li P20, 4Cr13, thiab lwm yam, tam sim no feem ntau siv. Qhov no tshem tawm qhov xav tau kev kho cua sov ntxiv tom qab machining, txuag lub sijhawm thiab tiv thaiv deformation. Rau lub caj dab, siab - cov ntaub ntawv toughness xws li 4Cr13 thiab S136 feem ntau raug xaiv los tiv thaiv kev puas tsuaj.
Yog tias koj tau cog lus rau PET preform ua lag luam lossis muaj lus nug txog PET preform pwm, peb cia siab tias yuav muaj kev sib pauv nrog koj ntau dua.Peb pab pawg kws tshaj lij yeej ib txwm muaj los muab cov ntaub ntawv thiab kev txhawb nqa rau koj los txiav txim siab.
Peb tos ntsoov yuav ua haujlwm nrog koj! Hauv qhov teeb meem tom ntej no, peb yuav txuas ntxiv peb cov kev sib tham hauv kev nthuav dav lwm yam hauv kev xaiv cov ntaub ntawv ntawm PET preform pwm.