xov xwm

Kev tshuaj xyuas zoo ntawmcov tshuaj phenolic molding(ua los ntawm phenolic resin matrix nrog ntxiv cov khoom sau, cov neeg sawv cev kho, cov roj nplua nyeem, thiab lwm yam, feem ntau siv rau kev txhaj tshuaj molding) yuav tsum npog cov qhov ntev ntawm lub hauv paus suav nrog qhov tsos, kev ua haujlwm, cov khoom siv lub cev thiab cov khoom siv kho tshuab, cov khoom siv thermal, thiab kev tiv thaiv tshuaj lom neeg kom ntseeg tau tias ua raws li cov kev cai molding thiab kev ua haujlwm ntawm cov khoom. Cov khoom tshuaj xyuas tshwj xeeb thiab kev xav txog yog raws li nram no:

Kev Tshuaj Xyuas Qhov Zoo Li Cas thiab Kev Pom Zoo

Qhov tsos yog ib qho cim qhia txog kev ntsuam xyuas qhov zoo ua ntej, uas qhia txog kev sib xyaw ntawm cov khoom siv raw thiab kev ua pellet (lossis kev npaj hmoov) thaum lub sijhawm tsim khoom. Cov khoom tshuaj xyuas tshwj xeeb suav nrog:

Xim thiab Kev Sib Xws

Qhov Yuav Tsum Tau Ua: Cov khoom lag luam hauv tib pawg yuav tsum muaj xim sib xws thiab tsis muaj qhov sib txawv ntawm xim (yuav tsum tau kuaj xyuas los ntawm kev sib piv nrog cov duab qhia xim lossis kev ntsuas ntau yam siv lub cuab yeej ntsuas qhov sib txawv ntawm xim).

Qhov Tseem Ceeb: Kev hloov xim yuav yog vim muaj qhov sib txawv ntawm cov khoom sib xyaw, kev sib xyaw tsis sib xws, lossis kev hloov pauv ntawm qhov kub thiab txias, uas cuam tshuam rau qhov pom ntawm cov khoom kawg.

Cov xwm txheej ntawm cov hmoov av / hmoov

Cov khoom me me: Tshawb xyuas seb puas muaj cov duab puag ncig, tsis muaj kev sib sau ua ke lossis tawg (qhov tawg yuav tsum yog ≤ tus nqi teev tseg, feem ntau ≤3%), thiab kev faib tawm qhov loj me ntawm cov khoom me me sib npaug (paub tseeb los ntawm kev tshuaj xyuas tus qauv sieve; piv txwv li, 20-60 mesh feem pua ​​yuav tsum ua tau raws li cov qauv ntawm lub tuam txhab).

Hmoov: Tsis muaj pob thiab lwm yam khoom txawv teb chaws (piv txwv li, cov hlau tsis huv, cov fiber clumps). Sim siv 100-mesh screen; cov seem yuav tsum yog ≤0.5%.

Cov Khoom Tsis Huv thiab Cov Kev Tsis Zoo

Tshawb xyuas los ntawm kev pom los yog siv lub iav loj. Tsis pub ua tej yam tsis huv xws li cov hlau txiav, pob zeb, lossis cov roj hmab uas tsis tau tawg. Cov nplaim ntawm cov hmoov/hmoov yuav tsum tsis muaj cov roj lossis cov pwm (kom tiv thaiv cov npuas lossis cov khoom tawg thaum lub sijhawm pwm).

Kev Ntsuas Kev Ua Haujlwm

Qhov kev ua tau zoo ntawm cov tshuaj phenolic molding ncaj qha txiav txim siab qhov yooj yim ntawm kev nias molding thiab cov khoom tsim tawm. Cov khoom sim tseem ceeb suav nrog:

1. Kev Nqus Tau (Cov Yam Ntxim Saib ntawm Kev Nqus Tau)

Txoj Kev Ntsuas: Feem ntau yog Txoj Kev Ntsuas Qhov Ntev ntawm Cov Kauv (ib GB / T 14049-2008 "Cov Tshuaj Phenolic Moulding"). Txhaj cov tshuaj molding rau hauv lub pwm kauv ntawm qhov kub thiab txias (piv txwv li, 160-180 ° C) thiab siab (piv txwv li, 5-10 MPa), tom qab ntawd ntsuas qhov ntev ntawm lub kauv uas tsim los ntawm cov yaj ntws.

Cov Qauv Txiav Txim: Qhov sib txawv ntawm qhov ntev ntawm cov dej ntws hauv tib pawg yuav tsum yog ≤ ± 10%. Cov nqi tshwj xeeb yuav tsum phim cov qauv khoom (cov khoom nyias nyias xav tau qhov ntws tau zoo, thaum cov khoom tuab xav tau qhov ntws nruab nrab kom tiv thaiv kev ntws dhau).

Qhov Tseem Ceeb: Kev ntws tsawg dhau yuav ua rau cov khoom puv tsis tiav lossis cov ces kaum tsis muaj qhov; kev ntws ntau dhau yuav ua rau muaj kev kub ntxhov lossis puv, ua rau cov nqi tom qab ua tiav ntau dua.

2. Kev Kho Ceev (Lub Sijhawm Gel thiab Lub Sijhawm Kho)

Lub Sijhawm Gel: Ntsuas lub sijhawm txij li thaum cua sov mus txog thaum poob qhov ntws (gel state) ntawm qhov kub uas tau teev tseg (piv txwv li, 175°C) (ib GB/T 14049). Feem ntau yuav tsum tau siv: 50-150 vib nas this (kho raws li qhov tuab ntawm ib feem; cov khoom tuab dua yuav tsum tau siv sijhawm ntev dua me ntsis rau gel kom tiv thaiv kev kho sab hauv).

Lub Sijhawm Kho: Ntsuas lub sijhawm uas xav tau rau kev kho kom tiav ntawm qhov kub thiab txias thiab siab uas tau teev tseg (txiav txim siab los ntawm kev hloov pauv qhov nyuaj hauv cov qauv kuaj pwm; piv txwv li, Barcol hardness ntawm 80 lossis siab dua qhia tias kho tag nrho). Feem ntau 3-5 npaug ntawm lub sijhawm gel.

Tseem Ceeb: Kev kho sai dhau yuav ua rau muaj kev ntxhov siab sab hauv thiab tawg hauv cov khoom; kev kho qeeb dhau yuav ua rau lub voj voog tsim khoom ntev dua thiab txo qis kev ua haujlwm.

3. Tus Nqi Ntsws (Kev Ruaj Ntseg Tom Qab Tsim)

Txoj Kev Ntsuas: Ua pwm ib qho qauv txheem (piv txwv li, 120mm × 120mm × 3mm). Tom qab txias mus rau qhov kub thiab txias hauv chav, ntsuas qhov loj tiag tiag ntawm cov qauv. Muab cov no piv rau qhov loj ntawm pwm kom xam qhov nrawm ntawm kev ntsws (Nyhav Ntsws = (Qhov Loj ntawm Pwm - Qhov Loj ntawm Qauv) / Qhov Loj ntawm Pwm × 100%).

Cov Txheej Txheem Txiav Txim:Phenolic molding compoundFeem ntau qhov kev ntsws me me yog li ntawm 0.4% txog 1.2% (qis dua nrog cov khoom siv inorganic, siab dua me ntsis nrog cov khoom siv organic). Qhov kev hloov pauv ntawm kev ntsws me me yuav tsum yog ≤ ± 0.2% kom tiv thaiv kev hloov pauv ntawm qhov ntev hauv cov khoom tiav.