Nyob rau hauv cov txheej txheem ntau lawm ntawm cov roj hmab kev lag luam, nws tsis yog ib txwm tsim nyog siv cov khoom siv roj hmab los ntsuas seb puas muaj cov roj hmab cov khoom siv los yog hauv {{{{vulcanized. Cov kws paub txog cov thev naus laus zis thiab cov engineers feem ntau tuaj yeem ua rau kev txiav txim siab ua ntej los ntawm kev soj ntsuam kev soj ntsuam, kev sib tw ntawm phau ntawv, thiab cov haujlwm yooj yim. Hom no yog tshwj xeeb tshaj yog rau ntawm -} chaw ntawm kev tswj hwm thaum lub sijhawm tsim khoom. Nws ua rau kev txiav txim sai thiab ua raws sijhawm rau cov txheej txheem volcanization, txo cov khoom lag luam uas tsis xws luag. Hauv qab no yog qee qhov kev txiav txim siab tsis zoo thiab muaj txiaj ntsig zoo.
1. Kev Txiav Txim ntawm Tes Zoo thiab kov
Tes zoo siab yog qhov yooj yim tshaj plaws thiab feem ntau ncaj qha. Los ntawm kov thiab nias cov khoom roj hmab nrog tes, peb tuaj yeem txiav txim nws lub hardness, elasticity, thiab lwm yam.
(1) Kev Ntsuas Xyuas
Maj mam nias cov nplaim roj hmab nrog cov ntiv tes lossis cov cuab yeej (xws li tus rau tes lossis riam me):
Nyob rau hauv - vulcanized roj hmab: nws pom tau mos. Qhov indentation sab laug tom qab nias rov qab maj mam thiab tej zaum yuav tsis tau rov qab ua kom tiav.
Tshaj - cov roj hmab vulcanized: nws mloog zoo. Yuav luag tsis muaj deformation tom qab nias, lossis nws rov qab ua sai sai. Nws tseem yuav tsis muaj elasticity thiab qhia tau muaj zog brittleness.
(2) Khawm Kev Ntsuas Elasticity
Maj mam nias cov roj hmab nrog koj txhais tes thiab tso nws sai:
Nquag vulcanized roj hmab: nws muaj elasticity zoo thiab tuaj yeem rov qab sai rau nws cov qauv qub.
Nyob rau hauv - pa roj hmab: qhov rebound yog qeeb thiab tej zaum kuj tseem xav tau qeeb.
Tshaj {- vulcanized roj hmab: nws tsis yog deforms lossis deforms heev me ntsis. Nws tseem yuav muab cov yas - zoo li kev xav.
(3) kev sib txhuam cov tshuaj ntsuam xyuas
Rub koj cov ntiv tes rau saum npoo ntawm cov roj hmab:
Nyob rau hauv - vulcanized roj hmab: lub saum npoo tej zaum yuav nplaum me ntsis, hnov cov mos, thiab muaj qhov pom tseeb kev sib txhuam.
Tshaj - pa roj hmab: cov saum npoo yog qhuav thiab yuav muaj kev nyuaj siab thiab tsis muaj qhov yooj yim.
2. Kev Txiav Txim Siab Los Ntawm Qhov Kev Ntsuas
Txoj kev xeem puas yog txoj hauv kev yooj yim los txiav txim qib ntawm Cross {{}} {1} {{vulcanized tshwm sim.
(1) maj mam khoov kuaj
Maj mam khoov cov roj hmab khoom nrog koj txhais tes:
Nyob rau hauv - pa roj hmab: nws yooj yim mus khoov thiab tej zaum txawm tsis muaj qhov tawv zoo li lub tshuab yas.
Nquag vulcanized roj hmab: tom qab dabtsi yog khoov, nws tuaj yeem tswj hwm qee yam thiab tsis muaj qhov tawg.
Tshaj - pa roj hmab: nws yog qhov nyuaj rau khoov thiab tej zaum yuav muaj ib qho nyuaj- brittle hos. Cov kab nrib pleb zoo yuav tshwm sim, lossis nws tsis tuaj yeem thim rov qab.
(2) fortfulfuldle qhov khoov
Quav cov roj hmab cov khoom siv zog (tshwj xeeb yog tsim nyog rau nyias - shractures lossis deformation:
Nyob rau hauv - vulcanized roj hmab: nws yooj yim los ua kom tawg nyob rau saum npoo thiab tej zaum kuj yuav dhau los ntawm ncaj qha.
Tshaj - cov roj hmab vulcanized: cov kab nrib nplua los yog pob txha lov tuaj yeem tshwm sim saum npoo, tshwj xeeb tshaj yog nyob rau hauv ib puag ncig tsawg.
Nquag vulcanized roj hmab: nws tuaj yeem tiv taus ib qib loj ntawm khoov tsis muaj qhov tawg.
3. Kev txiav txim los ntawm tensile thiab kua muag kev sim
Hom no feem ntau yog siv los txiav txim rau lub zog, ductility, thiab ua kom tawg.
(1) Tes-} tensile xeem
Tais cov roj hmab me me nrog koj txhais tes thiab saib cov txheej txheem ncab thiab pob txha lov
Nyob rau hauv - pa roj hmab: nws tau yooj yim rau ncab, tab sis nws yuav ua tau yooj yim qhia, xws li tsis muaj peev xwm rov qab tom qab tau ncab.
Tshaj - pa roj hmab: nws muaj cov roj hmab tsis zoo, mloog zoo thaum xyab, thiab tuaj yeem tsoo cov ntau yam tsis pub dhau.
Feem ntau cov roj hmab vulcanized: nws muaj kev sib tw me me, tuaj yeem rov qab mus rau nws cov duab qub tom qab raug tso tawm, thiab tsis yooj yim tawg.
(2) kua muag
Siv koj txhais tes lossis ib qho cuab yeej (xws li rab riam me) kom ua rau me me txiav ntawm cov qauv roj hmab thiab tom qab ntawd los ntawm txhais tes:
Nyob rau hauv - pa roj hmab: nws yog qhov yooj yim kua muag, thiab qhov tawg yooj yim kom du thiab tsis muaj kev sib tw.
Tshaj {- cov roj hmab vulcanized:
Nquag vulcanized roj hmab: nws muaj lub kua muag tsis kam. Kua muag yuav tsum tau ua kua muag yuav tsum muaj zog ntxiv, thiab lub kua muag ua rau muaj qee yam nyuaj thiab tsis muaj nke.
4. Kev txiav txim los ntawm cov ntxhiab tsw
Roj hmab tsim cov ntxhiab tsw ntxhiab tshwj xeeb thaum lub sij hawm vulcanization. Cov ntxhiab tsw hloov nrog cov kev sib txawv.
(1) Nyob rau hauv -} vulcanized roj hmab
Tej zaum nws tseem tuaj yeem tuav lub zog ua kom muaj zog - paab tsw (zoo ib yam li cov roj hmab tsis hnov tsw lossis tsis muaj txiaj ntsig).
Yog tias cov mis muaj cov neeg nrawm nrawm xws li TMTD (tetramethylthiuram disulfide) lossis lwm tus nrawm nrawm, nws yuav hnov tsw zoo li leej faj.
(2) Tshaj -} vulcanized roj hmab
Cov ntxhiab tsw feem ntau tsaus muag tab sis tej zaum yuav muaj ntxhiab tsw zoo ib yam li "scorched" lossis "hlawv roj hmab".
Tshaj - vulcanization yuav ua rau muaj tshuaj lom neeg, tso tawm qee qhov tsis hnov tsw, xws li cov ntxhiab tsw lossis cov pa roj.
(3) nquag vulcoanized roj hmab
Cov ntxhiab tsw muaj ntsis thiab tsis muaj qhov muaj zog ntau lossis pom tseeb.
5. Kev txiav txim los ntawm kev saib ntu txiav
Txiav cov khoom roj hmab nrog lub riam me me lossis lwm yam cuab yeej thiab saib nws lub pob txha lov pob txha thiab sab hauv.
(1) Nyob rau hauv -} vulcanized roj hmab
Lub pob txha lov yog tus, tsis muaj qhov pom tseeb zoo, thiab pom cov roj hmab hluav taws xob sib txawv.
Uncompletely cross -} Txuas nyoos - roj hmab ntu yuav pom.
(2) Tshaj -} vulcanized roj hmab
Lub pob txha tawv yog ntxhib thiab tej zaum yuav nrog transitle tawg.
Dawb lossis ci tawg yuav tshwm sim, tshwj xeeb tshaj yog thaum txiav.
(3) nquag vulcoanized roj hmab
Lub pob txha lov yog tsis zoo, cov kev ntxhib los mos yog ib txwm muaj, thiab tsis muaj qhov ua kom pom tseeb lossis kev sib tawg.
6. Kev txiav txim los ntawm kev ua kev ntxhov siab
Tso cov roj hmab cov khoom hauv ib puag ncig ntuj lossis muaj zog rau ib lub sijhawm thiab saib xyuas nws cov kev laus.
(1) Nyob rau hauv -} vulcanized roj hmab
Nws yuav dhau los ua muag muag thiab nplaum rau saum npoo hauv lub sijhawm luv.
Nws yog ib txwm mus rau oxidation nyob rau hauv lub siab -} pa taws ib puag ncig, thiab pom tseeb discoloration yuav tshwm sim rau saum npoo.
(2) Tshaj -} vulcanized roj hmab
Nws yuav ua nyuaj thiab nkig rau hauv ib lub sijhawm luv.
Nws muaj hnub nyoog sai dua hauv lub hnub ci lossis lub siab - huab cua ib puag ncig, thiab cov kab nrib pleb yuav tshwm sim.
(3) nquag vulcoanized roj hmab
Nws muaj kev tiv thaiv zoo thiab tsis hloov pauv qhov tseem ceeb hauv qee lub sijhawm.
Los ntawm cov txheej txheem sib txawv saum toj no, peb tuaj yeem txiav txim siab zoo txawm hais tias cov khoom lag luam roj hmab muaj ntau dua {{{{{vulcanized tsis muaj kev vam meej ntawm cov khoom siv nyuaj:
Tes - kev ntsuas thiab kov test: hauv qab {{vulcanized roj hmab yog muag, thaum dhau {vulcanized roj hmab yog qhov nyuaj.
Dabtsi yog khoov xeem: hauv {{- cov roj hmab vulcanized yooj yim rau deform, thaum dhau {vulcanized roj hmab yooj yim tawg.
Tensile thiab kua muag kuaj: hauv qab {{{{{vulcanized roj hmab muaj kev ywj pheej, thaum dhau los {
Cov Cim Npe: Hauv -}} {roj hmab tsw, thaum lub sij hawm {vulcanized roj hmab muaj scorched ntxhiab.
Txiav -}}} TSHUAJ SURCEURE DEG: TIB}} {vulcanized roj hmab yog ntxhib thiab nquag mus tawg.
Kev soj ntsuam kev laus: hauv {- vulcanized roj hmab yooj yim los ua cov nplaum, thaum tshaj {vulcanized roj hmab yog yooj yim los ua nkig.
Kev sib xyaw ua ke ntawm cov hau kev no tuaj yeem pab txiav txim siab sai ntawm cov khoom siv roj hmab, ua kom haum raws li cov khoom siv roj hmab, thiab txhim kho tus nqi tsim nyog.
