Yas PS (polystyrene)

Lub npe lus Askiv: Polystyrene

Lub zog tshwj xeeb: 1.05 g / cm3

Molding shrinkage tus nqi: 0.6-0.8%

Kub pwm: 170-250 ℃

Cov xwm txheej qhuav: -

yam ntxwv

Kev ua tau zoo tseem ceeb

a. Cov khoom siv kho tshuab: muaj zog heev, tiv taus kev qaug zog, ruaj khov ntawm qhov ntev, thiab me me nkag (tsawg heev kev hloov pauv nyob rau hauv qhov kub siab);
b. Kev tiv taus kub laus: qhov ntsuas kub UL nce mus txog 120 ~ 140 ℃ (kev laus sab nraum zoov ntev kuj zoo heev);

c. Kev tiv thaiv cov kuab tshuaj: tsis muaj kev ntxhov siab tawg;

d. Kev ruaj khov rau dej: yooj yim lwj thaum sib cuag nrog dej (siv ceev faj hauv qhov kub thiab txias thiab av noo);

e. Kev ua tau hluav taws xob:

1. Kev ua tau zoo ntawm kev rwb thaiv tsev: zoo heev (nws tuaj yeem tswj tau kev ua haujlwm hluav taws xob ruaj khov txawm tias nyob hauv qhov av noo thiab kub siab, nws yog cov khoom siv zoo tshaj plaws rau kev tsim cov khoom siv hluav taws xob thiab hluav taws xob);

2. Cov coefficient dielectric: 3.0-3.2;

3. Arc tsis kam: 120s

f. Kev ua pwm: txhaj tshuaj molding lossis extrusion molding los ntawm cov khoom siv niaj hnub. Vim yog qhov ceev ceev crystallization thiab zoo fluidity, qhov kub pwm kuj qis dua li lwm cov yas engineering. Thaum ua cov khoom nyias-phab ntsa, nws tsuas yog siv ob peb feeb xwb, thiab nws tsuas yog siv 40-60 vib nas this rau cov khoom loj.

daim ntawv thov

a. Cov khoom siv hluav taws xob: cov khoom sib txuas, cov khoom hloov pauv, cov khoom siv hauv tsev, cov khoom siv ntxiv, cov npog hluav taws xob me me lossis (kev tiv taus cua sov, kev tiv taus nplaim taws, kev rwb thaiv hluav taws xob, kev ua tiav molding);

b. Tsheb:

1. Cov khoom sab nraud: feem ntau suav nrog cov ces kaum, lub hau qhov cua ntawm lub cav, thiab lwm yam.;

2. Cov khoom sab hauv: feem ntau suav nrog endoscope stays, wiper brackets thiab tswj lub kaw lus valve;

3. Cov khoom siv hluav taws xob hauv tsheb: cov raj xa hluav taws xob sib ntswg thiab ntau yam khoom siv hluav taws xob, thiab lwm yam.

c. Cov khoom siv kho tshuab: txoj siv sia tsav ntawm lub tshuab kaw video, lub hau khoos phis tawj hluav taws xob, lub hau teeb mercury, lub hau hlau hluav taws xob, cov khoom siv tshuab ci thiab ntau lub iav, cams, khawm, lub moos hluav taws xob, cov khoom siv koob yees duab (nrog kev tiv taus cua sov, Cov kev cai tiv thaiv hluav taws)

Kev sib txuas

Raws li cov kev xav tau sib txawv, koj tuaj yeem xaiv cov nplaum hauv qab no:

1. G-955: Ib qho khoom siv hauv chav tsev kub kho cov nplaum mos mos uas tsis yooj yim poob siab, tiv taus qhov kub siab thiab qis, tab sis qhov ceev ntawm kev sib txuas qeeb, cov kua nplaum feem ntau siv sijhawm 1 hnub lossis ob peb hnub kom kho.

2. Cov nplaum KD-833 tuaj yeem ua kom cov yas PS sib txuas sai sai hauv ob peb feeb lossis kaum vib nas this, tab sis cov txheej nplaum yog tawv thiab tawg yooj yim, thiab nws tsis tiv taus dej kub tshaj 60 degrees.

3. QN-505, kua nplaum ob-txheej, txheej kua nplaum mos, tsim nyog rau PS thaj chaw loj los yog sib xyaw. Tab sis qhov kub siab tsis zoo.

4. QN-906: Kua nplaum ob yam khoom, ua haujlwm kub heev.

5. G-988: Ib qho khoom siv vulcanizate kub hauv chav. Tom qab kho, nws yog ib qho elastomer nrog cov dej tsis zoo, cov nplaum tsis poob siab, tiv taus kub thiab txias siab. Yog tias qhov tuab yog 1-2 hli, nws yuav kho tau hauv 5-6 teev thiab muaj qee lub zog. Nws siv sijhawm tsawg kawg 24 teev kom kho tau tag nrho. Ib qho khoom siv, tsis tas yuav sib tov, tsuas yog thov tom qab extruding thiab cia nws sawv tsis muaj cua sov.

6. KD-5600: Cov nplaum UV kho, sib txuas cov ntawv PS pob tshab thiab cov phaj, tuaj yeem ua tiav tsis muaj qhov cuam tshuam, yuav tsum tau kho los ntawm lub teeb ultraviolet. Cov nyhuv zoo nkauj tom qab lo. Tab sis qhov kub siab tsis kam yog pluag.

Kev ua tau zoo ntawm cov khoom siv

Kev rwb thaiv hluav taws xob zoo heev (tshwj xeeb tshaj yog kev rwb thaiv tsev siab), tsis muaj xim thiab pob tshab, lub teeb xa mus rau qhov thib ob tsuas yog plexiglass, xim, tiv taus dej, tshuaj lom neeg ruaj khov zoo, lub zog nruab nrab, tab sis brittle, yooj yim ua rau muaj kev ntxhov siab brittleness, thiab tsis kam. Cov kuab tshuaj organic xws li benzene thiab roj av. Haum rau kev ua cov khoom rwb thaiv tsev pob tshab, cov khoom dai kom zoo nkauj, cov cuab yeej tshuaj lom neeg, cov cuab yeej kho qhov muag thiab lwm yam khoom.

Kev ua tau zoo

⒈Cov khoom siv tsis muaj zog, tsis nqus dej noo, tsis tas yuav qhuav tag, thiab tsis yooj yim rau lwj, tab sis tus coefficient ntawm thermal expansion loj, thiab nws yooj yim los tsim kev ntxhov siab sab hauv. Nws muaj cov kua dej zoo thiab tuaj yeem pwm los ntawm lub tshuab txhaj tshuaj lossis lub tshuab txhaj tshuaj plunger.

⒉Nws yog ib qho zoo kom siv cov khoom kub siab, pwm kub siab, thiab qhov siab txhaj tshuaj qis. Kev ncua lub sijhawm txhaj tshuaj yog qhov zoo los txo qhov kev ntxhov siab sab hauv thiab tiv thaiv kev ntsws thiab kev hloov pauv.

⒊Ntau hom rooj vag siv tau, thiab cov rooj vag txuas nrog cov khoom yas arc kom tsis txhob muaj kev puas tsuaj rau cov khoom yas thaum lub rooj vag raug tshem tawm. Lub kaum sab xis demolding loj thiab qhov ejection yog sib xws. Lub phab ntsa tuab ntawm cov khoom yas yog sib xws, zoo dua tsis muaj cov ntxig, xws li Qee cov ntxig yuav tsum tau preheated.

siv

PS siv dav hauv kev lag luam kho qhov muag vim nws lub teeb ci ntsa iab zoo. Nws tuaj yeem siv los tsim cov iav kho qhov muag thiab cov cuab yeej kho qhov muag, nrog rau cov xim pob tshab lossis ci, xws li lub teeb, cov khoom siv teeb pom kev zoo, thiab lwm yam. PS kuj tseem tuaj yeem tsim ntau yam khoom siv hluav taws xob thiab cov cuab yeej uas ua haujlwm hauv qhov chaw muaj zog siab. Vim tias PS yas yog cov khoom siv nto uas nyuaj rau inert, nws yog qhov tsim nyog siv cov kua nplaum PS los txuas rau hauv kev lag luam.

Siv PS ib leeg ua khoom muaj qhov brittleness siab. Ntxiv me ntsis lwm yam khoom rau PS, xws li butadiene, tuaj yeem txo qhov brittleness thiab txhim kho kev cuam tshuam toughness. Cov yas no hu ua impact-resistant PS, thiab nws cov khoom siv kho tshuab tau zoo dua heev. Ntau yam khoom siv kho tshuab thiab cov khoom siv uas muaj kev ua tau zoo heev yog ua los ntawm cov yas.