Chii chinonzi yellowness index? Yi d1925, yi e313?

August 24, 2024

Chii chinonzi yellowness index?

Panzama, iyo yellowns yemuenzaniso inosanganiswa neyekupisa, kusimbisa, kujekesa kwemakemikari, saka indekisi yeyero (yellowingessinessTex, yi) inoshandiswa kuongorora huwandu hwehuwandu hwehuwandu hwehuwandu hwezvakadai.

Inowanzo shandiswa indekisi yekufunga iyo degree rellowing iri yi e313, yi d1925, platinum-cobalt, Apha, Gardner, Gardner, ASTM Chromaticity . Zvinhu zvinoshanda zvinogona kuve zvakajeka, zvingangoita zvisina ruvara zvinwiwa kana sosi

E313 yellowwess index yi e313 sumo

Yi e313 ndiyo yellowness index inokurudzirwa neASTM E313 yeD65 uye C yakajairika mwenje magwaro (zvakare inozivikanwa seyakajairika inovhiringidza ye2020 ndeye 2020 ndeyekuti:

YI E313 Calculation formula.png

Iko X, y, uye z its the tri-stimulus tsika, uye cz ndiyo coefficients

Yi e313 yakakodzera samples ine yekutanga wavelengths mune iyo huwandu hwe570 Yi e313 inogona kushandiswa kuenzanisa samples dzezvimwe zvinhu zvakafanana, semuenzaniso, semuenzaniso

Yi d1925 ndiyo yellowness index yakakurudzirwa neASTM D1925 (Test nzira yeYellowsess Index yePurastics), iyo yakagamuchirwa muna 1962 ine formula:

Yi D1925 Creaclation Fomula.Png

Iyo formula yaingove yakashandiswa chete C / 2 ° uye yakabviswa muna 1995, asi fomula ichiripo inopa ruzivo rwunobatsira.

Vese vei e313 uye yi d1922 inogona kushandiswa muzvinyorwa, pendi, uye maindasitiri epurasitiki, pamwe chete neyechena-chena zvinhu zvisina ruvara.

Kuyera nzira

Zviridzwa zvikuru zvinoshandiswa kuyera iyo yellowness index inosanganisira colum Zviridzwa izvi zvinofanirwa kutevedzera zviyero zvakaiswa neInternational Commission paKuphenekera (Cie) kuti uve nechokwadi chekurongeka uye kuenderana. Zviitiko zvakajairika zvinosanganisira ASTM E313-10 uye iso 2470.
Zvishandiso

Iyo yellowwess index inoshandiswa zvakanyanya kudzora chigadzirwa mhando uye kuongorora kuchembera kwezvinhu. Izvo zvinoshanda kune zviyero zvakajeka uye zvemberi zvakajeka senge mapurasitiki, mafirimu, uye ekuwedzera makemikari.
Kuyera Kufunga

Sampula Kugadzirira: Ita shuwa iyo sampula nzvimbo yakachena uye isina mahwendefa.

Chishandiso Calibration: Nguva dzose calibrate zviridzwa kuti uve nechokwadi chekuti mwenje wechiedza uye mahwendefa ehamba anosangana nematanho.

Mamiriro ekunze: Chengetedza tembiricha uye humidity panguva yekuyerwa, uye dzivisa kushungurudzika uye kutungamira mweya mamiriro.

Kufurira Zvinhu

Iyo yekuyera mhedzisiro yeiyo yellowness index inogona kukanganiswa ne:

Ruvara rwe resin

Kuyera tembiricha uye humidity

Calibration yeiyo Reference Plate

Kutungamirirwa kwechiedza sosi

Kufanana uye kuvapo kwemabubble mune sampuli

Mhedziso

Iyo yellowness index chiratidzo chakakosha chekuongorora shanduko yemavara muPolymer zvinhu, inoshandiswa zvakanyanya musainzi yesainzi uye kugadzirwa kwemaindasitiri. Kuyera kwakakwana uye kutonga kweiyo yellowness index kunogona kusimudzira zvakanyanya zvigadzirwa uye kusimba.

Zvadaro

Taura nesu

Author:

Mr. CHNSpec

E-mail:

chnspec@colorspec.cn

Phone/WhatsApp:

+86 13758201662