Yuav ua li cas thiaj daws tau qhov tsis sib xws ntawm qhov gloss ntawm roj hmab foob?

Lub uneven nto gloss ntawm vulcanizedroj hmab foobyog ib qho kev tsis zoo uas tsis zoo, uas tsis tsuas yog cuam tshuam rau qhov zoo ntawm cov khoom, tab sis kuj tuaj yeem ua rau kev ua haujlwm zoo thiab kev lag luam lees paub ntawm cov khoom. Raws li tus kws tshawb fawb txog roj hmab, cov hauv qab no yuav tshawb xyuas qhov ua rau qhov tsis sib xws ntawm cov khoom siv roj hmab vulcanized los ntawm ntau yam xws li roj hmab formulation, processing technology, pwm tsim, vulcanization txheej txheem, cov ntaub ntawv, thiab ib puag ncig yam tseem ceeb, thiab hais txog cov kev daws teeb meem.

Roj hmab formulation tsim yam tseem ceeb

Lub filler yog unevenly dispersed

Hauv kev tsim cov roj hmab vulcanized, cov khoom ntim xws li cov pa roj carbon dub, silica fume, thiab calcium carbonate feem ntau yog siv los ua cov tshuaj ntxiv thiab cov muab tub lim. Lub dispersion ntawm cov muab tub lim rau hauv cov roj hmab matrix muaj kev cuam tshuam zoo rau qhov gloss ntawm cov khoom:

Thaum cov dispersion tsis sib xws: cov khoom ntawm cov muab tub lim tau sib sau ua ke hauv zos, uas ua rau cov khoom siv tsis sib xws ntawm cov roj hmab saum npoo, thiab qhov sib txawv ntawm lub teeb pom kev zoo, ua rau pom qhov tsis sib xws ntawm gloss.

Kev daws: Txhim kho cov txheej txheem sib xyaw, nce cov sijhawm sib xyaw kom tsim nyog, thiab siv cov khoom siv hluav taws xob zoo dispersion los txhim kho qhov sib txawv ntawm qhov sib txawv ntawm qhov muab tub lim.

Cov nyhuv ntawm softeners thiab plasticizers

Softeners thiab plasticizers ua lub luag haujlwm tseem ceeb hauv kev txhim kho kev ua tau zoo thiab yoog raws hauv cov khoom siv roj hmab. Txawm li cas los xij, thaum qhov sib ntxiv ntau dhau los yog tsis sib xws, exudation tuaj yeem tshwm sim tau yooj yim, ua rau cov roj hmab saum npoo zoo li glossy.

Phenomenon: Cov roj stain nyob rau hauv qee qhov chaw yog pom tseeb, thiab gloss yog txo.

Tshuaj: Tsim nyog tswj tus nqi ntawm softener, xyuas kom meej tias cov mis nyuj sib tov sib xyaw, thiab xaiv cov softener nrog zoo compatibility.

Lub inhomogeneity ntawm lub vulcanization system

Cov txheej txheem vulcanization muaj xws li vulcanizing agents, accelerators, anti-scorching agents, thiab lwm yam., thiab qhov tsis sib xws ntawm cov khoom no yuav cuam tshuam rau kev sib txuas ntawm qhov sib txuas ntawm cov txheej txheem vulcanization, uas ua rau qhov tsis sib xws ntawm gloss.

Phenomenon: Cov cheeb tsam uas muaj kev sib txuas siab sib txuas yog denser thiab muaj gloss siab; Cov cheeb tsam uas tsis tshua muaj kev sib txuas sib txuas tau nce roughness thiab tsis zoo gloss.

Kev daws: Ua kom raug ntsuas cov khoom ntawm cov vulcanization system thiab optimizing cov txheej txheem sib xyaw kom ntseeg tau tias lawv cov khoom sib txawv.

Cov txheej txheem thev naus laus zis

Kev sib tov tsis zoo

Rubber compounding yog txheej txheem tseem ceeb los xyuas kom meej qhov sib txawv ntawm cov khoom siv roj hmab. Kev sib xyaw tsis txaus lossis lub sijhawm sib xyaw ntev tuaj yeem ua rau:

Cov muab tub lim yog tsis sib npaug, thiab carbon dub aggregation tshwm sim hauv qee qhov chaw.

Plasticizers thiab lwm yam additives yog unevenly faib, ua rau gloss txawv.

Kev daws: nruj me ntsis tswj qhov sib tov kub, lub sij hawm, thiab ceev, thiab xaiv cov khoom sib tov tsim nyog.

Extrusion lossis calendering txheej txheem tsis raug

Thaum lub sij hawm extrusion lossis calendering txheej txheem, cov khoom siv roj hmab tuaj yeem txhim kho qhov tsis xws luag vim kev tuav tsis raug, xws li:

Tsis sib npaug extrusion kub tswj, ua rau overheating los yog tsis sib xws nyob rau hauv tej qhov chaw;

Tsis sib npaug calendering yob kub ua rau tsis sib xws calendered ntawv thickness thiab nto zoo.

Kev daws: Tswj lub extrusion thiab calendering kub los xyuas kom meej stability ntawm tus txheej txheem.

Pwm nto zoo teeb meem

Qhov zoo ntawm cov pwm nto ncaj qha cuam tshuam rau saum npoo gloss ntawm vulcanized roj hmab foob. Cov lus nug uas nquag nug muaj xws li:

Qhov saum npoo roughness ntawm pwm yog siab dhau: muaj cov khawb me me lossis cov seem ntawm cov pwm, ua rau cov khoom siv roj hmab tsis zoo;

Pwm paug los yog kev puas tsuaj: Cov roj los yog cov khoom muaj zog yog txuas rau saum npoo ntawm cov pwm, uas cuam tshuam rau qhov gloss ntawm cov khoom molded.

Kev daws: Tsis tu ncua ntxuav thiab tswj cov pwm txhawm rau txhim kho qhov polishing qhov tseeb ntawm pwm.

Vulcanization txheej txheem txheej txheem

Cov txheej txheem vulcanization yog cov txheej txheem tseem ceeb ntawm roj hmab foob molding, thiab qhov tsis ruaj khov vulcanization tej yam kev mob yuav ncaj qha ua rau tsis sib xws.

Tsis sib npaug vulcanization kub tswj: siab dhau los yog qis dhau qhov kub tuaj yeem ua rau muaj qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv, ua rau qhov tsis sib xws ntawm qhov gloss.

Tsis sib npaug vulcanization siab faib: Cov pwm tsis zoo kaw lossis tsis sib xws yuav ua rau pwm tsis tiav hauv qee qhov chaw, cuam tshuam rau qhov chaw tiaj tus thiab gloss.

Lub sij hawm vulcanization tsis txaus: Lub sij hawm vulcanization luv luv ua rau kev sib txuas tsis txaus hauv qee qhov chaw, ib qho ntxhib saum npoo, thiab tsis tshua muaj gloss.

Kev daws: Precise tswj ntawm vulcanization kub, siab, thiab lub sijhawm.