Ifan Hoobkas 30+ xyooKev tsim khoom txhawb xim \/ loj customization kev them nyiaj yug dawb.Qhov kev sib tham rau cov ntawv teev thiab kuaj dawb.Qhov no yog peb FacebookLub Vev Xaib: www.Facebook.com, Nyem rau saib yog tias cov khoom lag luam video.comared nrog cov khoom lag luam Nyom, peb li cov khoom lag luam los ntawm qhov zoo rau koj xaiv zoo tshaj plaws, zoo siab tos txais yuav!
Radiation Kuj ntawm PPH cov yeeb nkab fittings
Lub hauv paus rau phau ntawv
Polypropylene Homopolymer (PPH) Cov yeeb nkab fittings tau txhawb nqa hauv ntau cov ntawv thov kev lag luam vim lawv cov khoom siv tshuab tau zoo, thiab lub ntsiab lus zoo. Txawm li cas los xij, nyob rau hauv cov chaw tshwj xeeb xws li cov khoom siv hluav taws xob nuclear, cov chaw kho mob hluav taws xob, thiab hluav taws xob kev kho mob, X - Rays, thiab Neutron hluav taws xob. Kev tawg kom muaj peev xwm ua rau muaj kev phom sij pph, ua rau muaj kev poob qis hauv lawv cov cuab yeej siv lub cev, thiab tshuaj lom neeg, ua haujlwm ntawm cov ntawv raj. Yog li, kev nkag siab thiab txhim kho hluav taws xob tiv thaiv hluav taws xob ntawm pph cov yeeb nkab fittings yog ntawm qhov tseem ceeb tshaj plaws. Kab lus no yuav delve rau hauv cov txheej txheem hluav taws xob - ua rau muaj kev cuam tshuam, cov tswv yim rau kev txhim kho lub radiation tiv thaiv ntawm pph cov yeeb nkab fittings.
Cov Cuab Yeej Hluav Taws Xob ntawm Hluav Taws Xob - Qhov Tsis Txaus Ntseeg Hauv Pph Yeeb Nkab Fittings
Scit And Cross - Txuas
Thaum PPH cov yeeb nkab fittings tau raug rau hluav taws xob, lub siab - Zog hluav taws xob hluav taws xob sib txuas nrog cov saw polymer. Ib qho ntawm thawj qhov cuam tshuam yog saw trawcression, qhov twg cov ntawv cog lus sib txoos tsis pub dhau lub ppp polymer tawg. Qhov no ua rau kev tsim cov saw luv polymer, txo cov molecular hnyav ntawm pph. Raws li cov molecular qhov hnyav txo qis, cov kws kho tshuab xws li lub zog tensile, cuam tshuam kuj, thiab elongation poob qis. Nyob rau tib lub sijhawm, hluav taws xob kuj tseem tuaj yeem ua rau hla kev - qhov kev sib txuas lus tshiab yog tsim ntawm cov sib zog polymer. Thaum pib, hla kev sib txuas yuav nce siab thiab txhav ntawm cov khoom, tab sis kev sib txuas ntau dhau - txuas rau pph brittle, txo nws txoj kev sib txuas thiab hloov tau. Qhov sib npaug ntawm cov saw saw thiab cov ntoo khaub lig - kev txiav txim siab qhov kev coj cwj pwm ntau zaus ntawm pph nyob rau hauv kev raug hluav taws xob.
Oxidation thiab dawb radical tsim
Hluav taws xob kis tau pib tsim cov dawb radicals hauv pph. Cov referive reactive dawb radicals tau yooj yim ua rau cov pa hauv ib puag ncig, ua rau oxidation ntawm cov polymer. Oxidation ua rau muaj kev mob ntawm lub pph molecular qauv, ua rau kev tsim ntawm CarbonyL pab pawg, thiab lwm yam khoom oxidation. Lub xub ntiag ntawm cov khoom oxidation no ntxiv nrawm cov txheej txheem degradation, raws li lawv tuaj yeem ua raws li catalysts rau kev siv oxidation ntxiv. Oxidation tsis tsuas muaj zog tiv thaiv cov khoom siv tshuab ntawm pph tab sis kuj cuam tshuam nws cov tshuaj tiv thaiv, ua rau nws muaj kev cuam tshuam ntxiv rau tshuaj lom neeg. Ntxiv mus, oxidation tuaj yeem ua rau pom kev ntawm ppph cov yeeb nkab fittings, uas yog ib qho tseem ceeb ntawm cov khoom zoo nkauj thiab kev ua haujlwm ntawm cov piping system.
Roj Evolution
Lwm qhov kev xaiv ntawm hluav taws xob raug rau ntawm pvc cov yeeb nkab fittings yog roj evolution. Raws li cov saw polymer tawg thiab yauv ua tau cov tshuaj lom neeg vim tias muaj roj av, cov roj uas muaj me me, me me, thiab lwm yam me me. Kev ntxiv ntawm cov roj av no nyob rau hauv cov yeeb nkab fitting tsim kev ua kom zoo sab hauv siab, muaj peev xwm ua rau kev tsim cov voids, tawg, lossis txawm tias xau. Cov roj hloov pauv tsis yog txoj kev muaj txiaj ntsig zoo ntawm cov yeeb nkab kev txaus ntshai, tshwj xeeb tshaj yog hauv cov ntawv thov uas thauj cov tshuaj uas yuav tsum muaj kev ruaj ntseg. Ib qho ntxiv, muaj cov roj npuas tuaj yeem cuam tshuam cov khoom ntws ntawm cov kua hauv cov kav dej hauv cov kav dej.
Yam cuam tshuam tiv thaiv lub radiation tsis kam ntawm pph cov yeeb nkab fittings
Hluav taws xob hom thiab koob tshuaj
Cov hom thiab koob tshuaj hluav taws xob yog qhov tseem ceeb heev cuam tshuam rau lub radiation tiv thaiv ntawm pph cov yeeb nkab fittings. Ntau hom hluav taws xob, xws li Rays GAMMA, X - Hluav taws xob hluav taws xob, thiab cov tshuab nruab nrab, muaj cov txheej txheem sib txuam nrog lub pph cov khoom siv. Gamma Rays thiab X - Rays, raws li elevidagnetic hluav taws xob, feem ntau ua rau ionization hluav taws xob, feem ntau ua rau cov pob zeb polymer, coj mus rau saw scrission thiab dawb radical. Neutron hluav taws xob, ntawm qhov tod tes, tuaj yeem ua rau muaj kev sib txawv nuclear ntawm cov khoom siv, ua rau muaj kev tsim cov khoom siv hluav taws xob thiab kev ua haujlwm ntxiv. Kev ua kom muaj hluav taws xob siab dua cov txheej txheem degradation, thiab cov kev ua haujlwm ntawm kev ua haujlwm ntev ntev - cov khoom siv cov yeeb nkab loj tuaj yeem ua rau muaj kev puas tsuaj rau pph kev puas tsuaj, txo lawv lub neej thiab kev ua haujlwm. Piv txwv li, hauv ib puag ncig nuclear, PPHLELE FITTINGS yuav raug rau qhov hluav taws xob siab heev, uas xav kom lawv muaj kev ncaj ncees ntawm cov cua txias thiab cov twj luam tawm.
Qhov kub thiab ib puag ncig
Qhov kub thiab qhov mob ib puag ncig thaum lub sij hawm hluav taws xob sib kis tseem ua cov luag haujlwm tseem ceeb hauv lub radiation tiv thaiv ntawm pph. Qhov kub siab dua ua rau lub zog ua haujlwm ntawm lub zog polymer thiab cov khoom siv reactive, ua kom nrawm dua cov tshuaj lom neeg uas tau tsim los ntawm hluav taws xob. Piv txwv li, ntawm cov txheej txheem kub, cov txheej txheem oxidation pib los ntawm hluav taws xob yog kev nrawm dua, ua rau nrawm dua ntawm cov khoom pph. Tsis tas li ntawd, muaj kev ya raws, oxygen, thiab lwm qhov chaw ib puag ncig tuaj yeem cuam tshuam nrog lub hluav taws xob - pph puas lawm, pph puas tau ua rau muaj kev mob siab. Nyob rau hauv ib puag ncig huab cua, moleculix thiab txhim kho cov pa hluav taws xob uas yuav tshwm sim vim tias hluav taws xob - indacerbating cov ntaub ntawv txiav txim siab. Yog li ntawd, tswj qhov ntsuas kub thiab ib puag ncig thaum lub sij hawm muaj qhov tseem ceeb rau kev nkag siab thiab txhim kho hluav taws xob tiv thaiv ntawm pph cov yeeb nkab fittings.
Khoom vaj
Cov qauv ntawm pph yog qhov tseem ceeb tshaj plaws txiav txim siab nws lub rauv hluav taws xob tiv thaiv. Hom thiab tus nqi ntawm cov roj ntxiv siv hauv pph tuaj yeem txhim kho lossis txo nws lub peev xwm los tiv thaiv hluav taws xob. Cov khoom siv hluav taws xob ruaj khov, xws li cuam tshuam amine lub teeb cigilizers (hales) thiab antioxidants, yog li kev txhim kho lub radiation tiv thaiv ntawm pph. Fillers thiab txhawb cov neeg sawv cev kuj tseem tuaj yeem cuam tshuam rau hluav taws xob cov lus teb ntawm PPH. Qee tus neeg lim dej yuav nqus hluav taws xob hluav taws xob lossis ua raws li kev puas tsuaj, thaum lwm tus yuav muaj qhov cuam tshuam nrog hluav taws xob lossis hluav taws xob pph. Lub cev yuag molecular thiab crystallinity ntawm pph kuj cuam tshuam nws lub radiation tsis kam. Ib qho siab dua molecular hnyav thiab crystallininity feem ntau muab cov qauv hluav taws xob - raws li lawv ua rau hluav taws xob ruaj khov thiab ua kom muaj kev puas tsuaj rau hluav taws xob - kev puas tsuaj.
Kev Ntsuas Cov Qauv Rau Radiation Kuj Ntawm PPH Yeeb Nkab Fittings
Gamma irradiation ntsuam xyuas
Gamma irradiation ntsuam xyuas yog ib txoj kev siv ib txwm siv los ntsuas qhov hluav taws xob tiv thaiv hluav taws xob ntawm pph cov yeeb nkab fittings. Hauv qhov kev ntsuas no, cov qauv ntawm PPH cov yeeb nkab fittings yog nthuav tawm gamma rays los ntawm cov khoom siv hluav taws xob, xws li Cobalt - 60, hauv kev tswj hwm ib puag ncig. Cov qauv tau cuam tshuam ntawm cov tshuaj sib txawv thiab cov nqi ntsuas mus rau simulate ntau yam scoriation kis cov xwm txheej. Tom qab cov qauv dej, cov qauv tau txheeb xyuas rau kev hloov pauv ntawm lub cev, xws li cov khoom siv ntom ntom, nrog rau tensile lub zog, cuam tshuam, thiab elongation thaum tawg. Chemical analysis techniques, such as Fourier - transform infrared spectroscopy (FTIR) and gas chromatography - mass spectrometry (GC - MS), can be used to detect the formation of oxidation products and the evolution of gases, providing insights into the degradation mechanisms of PPH under gamma radiation.
Neutron irradiation ntsuam xyuas
Rau cov ntawv thov uas PPH cov yeeb nkab fittings raug rau Neutron hluav taws xob, neutronriation kev kuaj irradiation yog qhov tseem ceeb. Neuton iradiation refiliat cov chaw, xws li nuclear reactors lossis particle accelerators, yog siv los tsim cov nqaj neutron rau irradiating cov qauv. Zoo ib yam li GAMMA irradiation kuaj, cov qauv yog irradiated ntawm txawv neutron fluases thiab fluxes, thiab tom qab ntawd ntsuas rau kev hloov pauv ntau yam khoom. Neutron irradiation tuaj yeem ua rau kev puas tsuaj tshwj xeeb mechanisms hauv pph, xws li kev hloov pauv nuclear thiab kev hloov pauv atoms nyob rau hauv cov khoom ntxau. Cov qauv kev xeem tshwj xeeb, xws li Neunon ua kom cov kev soj ntsuam cov teebmeem no thiab ntsuas hluav taws xob tsis kam ntawm PPHiath nyob rau hauv Neutron.
Nrov Cov Laus Kev Ntsuas
Nrov cov kev sim ua ke hluav taws xob sib txuas nrog lwm qhov chaw ib puag ncig, xws li sim ua kom muaj qhov phem tshaj plaws - cov xwm txheej huab cua - cov chaw muaj peev xwm ntau dua sai sai. Cov qauv ntawm PPH cov yeeb nkab fittings tau raug rau hluav taws xob hauv chav tsev uas yog qhov kub thiab cua noo, thiab hluav taws xob tshuaj yuav tsum tau ua kom meej. Los ntawm kev ua piv txwv rau kev laus sai sai, cov kws tshawb nrhiav tuaj yeem saib cov kev sib txuas ntawm cov hluav taws xob ntawm lub pph thiab kwv yees nws qhov kev ua tau ntev ntev - kev siv hauv ntiaj teb. Cov kev ntsuam xyuas no yog qhov tseem ceeb rau kev soj ntsuam PPH cov yeeb yam sib txawv thiab cov tshuaj ntxiv los txheeb xyuas cov uas muaj hluav taws xob zoo dua thiab tag nrho cov kev ua tau zoo.
Cov tswv yim los txhim kho hluav taws xob tiv thaiv hluav taws xob ntawm pph cov yeeb nkab fittings
Additive Kev Hloov Kho
Ntxiv cov tshuaj ntxiv rau pph yog lub tswv yim zoo rau kev txhim kho nws txoj kev rauv hluav taws xob tiv thaiv. Kev ua haujlwm hluav taws xob stabilizers, raws li tau hais ua ntej lawm, tuaj yeem ua lub luag haujlwm tseem ceeb hauv kev ua haujlwm ywj pheej thiab ua rau oxidation dawb. Ua ke ntau hom stabilizers, xws li siv ob qho tib si thiab cov tshuaj anticxidants, tuaj yeem muab kev tiv thaiv ntau ntxiv rau hluav taws xob - ua rau muaj kev cuam tshuam ntau dua Ib qho ntxiv, ntxiv rau hluav taws xob - nqus cov puv npuaj, xws li cov duab hluav taws xob - muaj peev xwm txo cov khoom siv hluav taws xob nce mus txog lub pphrix, yog li tiv thaiv cov polymer los ntawm kev puas tsuaj. Qee cov kws tshawb nrhiav kuj tseem kawm txog kev siv nanomaterials thiab graphene, raws li cov pa roj carbon monoxe, raws li cov ntxiv hluav taws xob tiv thaiv pph vim lawv cov tshuaj muaj zog thiab tshuaj lom neeg.
Polymer Blending thiab Composite Tsim
Blending P Pph nrog lwm cov polymers lossis kev tsim cov composites kuj tseem tuaj yeem txhim kho nws cov radiation tsis kam. Piv txwv li, kev sib koom ua ke PPph nrog hluav taws xob - resistant polyphenylene sulfide (pps) lossis polyetheretneketone (Peek), tuaj yeem sib txuas ntawm cov khoom sib txawv thiab txhim kho lub ntsuas hluav taws xob sib txawv. Nyob rau hauv cov ntaub ntawv sib xyaw, kev txhawb nqa cov nplais lossis cov khoom siv tuaj yeem ntxiv rau PPH ua rau nws cov khoom siv tshuab thiab tseem muab qee cov kev tiv thaiv hluav taws xob. Lub interface ntawm PPHRIX thiab cov khoom sib txuas ntxiv yog qhov tseem ceeb thiab kev sib cav ua kom zoo thiab cov txheej txheem zoo hauv kev txhim kho lub radiation tsis kam ntawm cov composite.
Nto Kho
Nto kho ntawm ppph cov yeeb nkab fittings tuaj yeem muab cov txheej ntxiv ntawm kev tiv thaiv kev tiv thaiv hluav taws xob. Txheej qhov saum npoo nrog cov ntaub ntawv hluav taws xob - xws li Epoxy - raws li cov tshuaj pleev xim rau hluav taws xob - nqus tau cov pa hluav taws xob thiab hluav taws xob tsis kam, tuaj yeem sib tham ncaj qha rau lub pph. Kev kho ntshav lossis tshuaj lom neeg tshuaj lom neeg kuj tseem siv tau los hloov cov khoom saum npoo ntawm pph, ua rau nws tiv thaiv hluav taws xob ntau - ua rau muaj kev tsis txaus ntseeg. Piv txwv, ntshav kho mob tuaj yeem qhia cov pab pawg ua haujlwm ntawm lub ppph uas hnov cov hluav taws xob, siv nws ua ntej nws tuaj yeem ua rau muaj kev puas tsuaj loj rau cov khoom siv.
Tag
Lub radiation insorance ntawm ppph cov yeeb nkab fittings yog ib qho khoom tseem ceeb rau lawv daim ntawv thov hauv hluav taws xob - cov chaw ua kom muaj zog. Nkag siab txog cov txheej txheem ntawm hluav taws xob - ua rau muaj kev cuam tshuam, cov hau kev tsim nyog, thiab cov kev ntsuas tsim nyog yog qhov tseem ceeb rau kev tiv thaiv hluav taws xob ntawm pph. Los ntawm cov tswv yim kev hloov kho ntxiv, polymer sib xyaw, txhim kho cov kev txhim kho ntawm lub teeb ci rau pph cov yeeb nkab fittings. Raws li qhov kev thov rau ppph cov yeeb nkab fittings nyob rau hauv nuclear, thiab chaw kev tshawb fawb thiab kev ntseeg siab ntawm cov twj tso cai hauv cov chaw sib tw.