Fufuzani chinsinsi cha zinthu za elastomer TPE/TPR!

#tpe extrusion#tpe composite pepala extrusion mzere

1. Kuuma

Kuuma kumatanthauza kuthekera kwa chinthucho kukana chinthu cholimba kukankhira pamwamba pake. Chifukwa kufewa kapena kuuma kwa chinthu nthawi zambiri kumakhala chinthu choyamba kuganizira posankha chinthucho, ndipo kuuma kumagwirizananso ndi makhalidwe ena ofunikira a kapangidwe, monga tensile modulus ndi flexural modulus. Chifukwa chake, cholinga choyesera kuuma ndikuwonetsetsa kuti mawonekedwe a kuuma kwa thermoplastic elastomers ndi otani.
Chida chomwe chimagwiritsidwa ntchito kwambiri poyesa kuuma kwa rabara ndi Shore hardness tester. TPE Kuyesa zinthu nthawi zambiri kumagwiritsa ntchito njira ziwiri zokha zoyesera kuuma: ShoreA ndi ShoreD.

2. Seti yopondereza

Seti yokakamiza imatanthauza mayeso a kusintha kosatha kwa zinthu za mphira kapena elastomer zomwe zimayikidwa pansi pa kukakamizidwa (kugwiritsa ntchito katundu pamlingo winawake, tinene 25%) komanso kutentha kosiyanasiyana. Zipangizo zonse za polima zimayikidwa pansi pa mikhalidwe ina ya kukakamizidwa, ndipo mayeso a seti yokakamiza ndi muyeso woyerekeza wa khalidwe la kugwedezeka kwa zinthu zomwe zimayikidwa pansi pa kukakamizidwa.
Zida zofunika poyesa seti yokakamiza ndi uvuni ndi chipangizo chokakamiza, chomwe chimaphatikizapo mbale yokakamiza, choletsa ndi chomangira.
Kawirikawiri kupsinjika kwa Shore10-80A ndi 25%, kupsinjika kwa Shore80-89A ndi 15%, ndipo kupsinjika kwa Shore90-95A ndi 10%.

3. Kusinthasintha kosatha kwa ma tensile

Kusintha kosatha kwa mphamvu yokoka kumatanthauza kusintha kotsalira kwa chitsanzocho chikatalika pansi pa mphamvu inayake yokoka, ndipo chimafotokozedwa ngati peresenti ya kutalika koyambirira. Zipangizo zonse za elastomer zimapumula molingana ndi kupsinjika kwina, ndipo mayeso a seti yokoka ndi muyeso woyerekeza wa khalidwe la kupumula kwa mphamvu yokoka kwa chinthu chomwe chili ndi mphamvu yokoka.

4. Mphamvu yamakokedwe

Mphamvu yokoka imatanthauza kupsinjika kwakukulu komwe kumachitika panthawi yotambasula chitsanzo mpaka chitasweka, ndipo ndi muyeso wolondola wa kukana kukoka kwa chinthu cha elastomer.

5. Kung'amba mphamvu

Njira yong'ambika yamakina yomwe idzapangidwa ndikukulitsidwa ndi mfundo inayake ya zinthu za rabara ndi pulasitiki pogwiritsa ntchito mphamvu zambiri idzapangitsa kuti zinthuzo zisweke, zilema kapena zisinthe m'deralo, ndipo mphamvu yong'ambika ndi chiwonetsero cha kuchuluka kwa mphamvu yowononga yomwe ikufunika mu njira yong'ambika iyi.

6. Kukana mafuta

Mayeso oletsa mafuta makamaka ndi kuyeza kusintha kwa chinthu m'zisonyezero zingapo za magwiridwe antchito (kuchuluka, kuuma, mphamvu yokoka, ndi zina zotero) m'mafuta osiyanasiyana ofunikira, makamaka kutsogolera chinthucho kuti chitsimikizire kuti chikugwiritsidwa ntchito bwino pokhudzana ndi mafuta amadzimadzi.