1 、 Tsis txaus foaming qhov
Ua rau:
(1) teeb meem zoo ntawm tus neeg sawv cev foaming;
(2) tsis tshua muaj plasticity ntawm cov khoom siv roj hmab;
(3) sib tov kub heev thiab thaum ntxov decomposition ntawm foaming tus neeg sawv cev;
(4) Cov roj hmab nres ntev dhau los lossis kub dhau, thiab qee qhov ntawm cov neeg ua npuas dej evaporates lossis decomposes;
(5) Lub vulcanization ceev ntawm cov roj hmab yog ceev heev;
(6) lub siab yog siab dhau lawm, siab tshaj lub siab sab hauv tsim los ntawm cov pa roj ntawm tus neeg sawv cev foaming, ua rau cov foaming qhov tsis txaus;
Kev tiv thaiv:
(1) xyuas seb tus neeg sawv cev foaming puas nyob rau lub sijhawm txwv thiab seb nws puas tsim nyog;
(2) xyuas seb lub plasticity ntawm cov khoom siv roj hmab puas ua tau raws li tus qauv, plasticity tsawg dhau yuav tsum tau ntxiv los ntawm kev sib xyaw ua ke, ua kom cov yas ua kom yooj yim rau kev txhim kho ntawm qhov;
(3) Txheeb xyuas seb qhov kub ntawm lub tshuab sib tov puas siab dhau lawm, seb qhov kub ntawm qhov yob yog siab dhau, thiab seb cov roj hmab puas yog hlawv. Qee cov khoom siv roj hmab uas muaj qhov sib xyaw ua kom sov tuaj yeem sib xyaw nrog me me ntawm kev kho mob lossis ntxiv foaming tus neeg sawv cev hnyav kev lag luam;
(4) Cov roj hmab yuav tsum tau xa rov qab mus rau qhov kev ua kom zoo ntxiv tom qab lub sijhawm nres tsheb ntev dhau lawm;
(5) kev hloov kho cov qauv, xyuas seb qhov kub thiab txias ntawm tus neeg sawv cev vulcanizing thiab decomposition kub ntawm foaming tus neeg sawv cev nyob ze rau ib leeg, thiab sib koom ua ke ua kom lub vulcanization ceev thiab foaming ceev match;
(6) kho lub siab ntawm lub tshuab.
2. Tsis txaus filling pwm
Ua rau:
(1) Cov roj hmab siv tsis txaus;
(2) Pwm tsis txaus los yog pwm siv ntev dhau lawm yam tsis tau ntxuav, cov roj hmab ntws yuav raug tiv thaiv;
(3) Cov qauv kab noj hniav yog qhov nyuaj thiab qhov ntws ntawm cov roj hmab tsis sib xws, thiab feem ntau tsis tuaj yeem sau cov pwm saum toj kawg nkaus tom qab lub qhov tso tawm, tsim qhov tsis xws luag;
(4) Cov huab cua nyob rau hauv lub kaum sab xis tuag ntawm cov pwm kab noj hniav tsis tuaj yeem tawm, kom cov roj hmab tsis muaj cov kab noj hniav, ua rau cov ntug ntawm cov kua nplaum tsis muaj;
Kev tiv thaiv:
(1) Ntsuas ib los ntawm ib qho los xyuas kom meej qhov hnyav ntawm cov khoom siv kua nplaum;
(2) txhim kho fluidity ntawm cov roj hmab;
(3) Hloov cov pwm, tsim nyog tsim ntawm cov cua venting qhov, pwm qauv, thiab lwm yam.
3. Cov qhov tsis sib xws (loj lossis me dhau)
Lub qhov ua npuas ncauj loj dhau, qhov hardness thiab ntom ntawm cov khoom tsis yog tus qauv, lub qhov kaw yuav dhau los ua qhov sib koom ua ke, lub qhov micro ua qhov me me, qee qhov tawg lossis qee qhov tsis tuaj yeem xa tuaj.
Ua rau:
(1) ua npuas ncauj agglomeration los yog hais lus ntxhib heev;
(2) tsis sib xws;
(3) cov ntsiab lus dej siab ntawm cov khoom sib xyaw ua ke, huab cua lossis impurities sib xyaw hauv cov roj hmab;
(4) Tsis txaus vulcanization, txuas ntxiv tsim qhov tom qab pwm;
Kev tiv thaiv:
(1) xyuas cov foaming tus neeg saib xyuas, yog tias qhov tshwm sim ntawm agglomeration yuav tsum tau sieved, coarse hais yuav tsum tau crushed, tag nrho tov (los yog nyias dhau) kom nws tusyees dispersed;
(2) nrog tus neeg sawv cev noo noo yuav tsum siab dhau tom qab ziab, tshem tawm cov huab cua lossis impurities hauv cov khoom siv roj hmab, kom nws yog vulcanized tag nrho.
4. dhau-vulcanization lossis under-vulcanization
(1) Tshaj-vulcanization
Kev hloov pauv dav dav ntawm qhov muag, qhov muag me me, siab hardness, cov khoom lag luam tawg, uas tshwm sim los ntawm kev ua haujlwm tsis raug, lossis kub dhau, lub sijhawm vulcanization ntev dhau los lossis ntsuas qhov ntsuas tsis ua haujlwm, yuav tsum xyuas seb lub valve thiab cov cuab yeej puas muaj teeb meem, thiab tom qab ntawd ua tib zoo siv cov kev cai ua haujlwm.
(2) nyob rau hauv vulcanization
Thaum lub vulcanization tsis txaus, lub siab sab hauv ntawm lub pore yog siab dua lub siab sab nraud tom qab tawm hauv pwm, thiab yog tias cov roj hmab txuas ntxiv xa qhov, lub teeb yuav ua rau tsis muaj zog, tsis muaj zog thiab deformation loj; qhov hnyav yuav ua rau lub qhov tawg. Nws yuav tsum xyuas seb puas muaj teeb meem nrog lub ntsuas thiab lub valve, thiab nruj me ntsis raws li cov cai ntawm kev ua haujlwm.
Lus Cim: Cov khoom ua npuas ncauj tswj cov ntsuas zoo
(1) Pom pom qhov ntom ntom, qhov me dua qhov zoo;
(2) mechanical zog yog feem ntau 0.5-1.6Mpa;
(3) static compression mus tas li deformation;
(4) hardness;
(5) cuam tshuam elasticity;
(6) nruam dynamic qaug zog;
(7) aging test (70 degrees * 70 teev; 100 degrees * 24 teev);
(8) Kev ntsuas kub tsawg.
