Kufotokozera makhalidwe

DB 75 ndi njira yoziziritsira kutentha ndi kuwala kwamadzimadzi yopangidwira ma polyurethane

Kugwiritsa ntchito

DB 75 imagwiritsidwa ntchito mu polyurethanes monga Reaction Injection Molding (RIM) polyurethane ndi thermoplastic polyurethane (TPU). Chosakanizachi chingagwiritsidwenso ntchito mu sealant ndi glue, mu polyurethane covering pa tarpaulin ndi pansi komanso mu chikopa chopangidwa.

Zinthu/ubwino

DB 75 imaletsa kuwonongeka kwa zinthu zomwe zimapangidwa, kuwala ndi nyengo.
zinthu zopangidwa ndi polyurethane monga nsapato zopondera, zida ndi zitseko, mawilo owongolera, zophimba mawindo, zopumulira mutu ndi manja.
DB 75 ikhoza kuwonjezeredwa mosavuta ku machitidwe a polyurethane onunkhira kapena aliphatic kuti apange mapangidwe a thermoplastic, ma foam okhwima pang'ono, kupukuta khungu mkati mwa mold, kugwiritsa ntchito dope. Itha kugwiritsidwa ntchito ndi zinthu zachilengedwe komanso zopaka utoto. DB 75 ndi yoyenera kwambiri pokonzekera ma phala amitundu yopepuka yokhazikika pamachitidwe omwe atchulidwa pamwambapa.
Ubwino wina:
Kupompa kosavuta, madzi othira madzi omwe amalola kugwiritsa ntchito fumbi, mlingo wokha komanso kuchepetsa nthawi yosakaniza
phukusi lonse lamadzimadzi; palibe kusungunuka kwa zowonjezera mu gawo la polyol ngakhale kutentha kochepa
Yosagonjetsedwa ndi exudation/crystallization m'machitidwe ambiri a PUR

Mawonekedwe a mankhwalawo ndi madzi oyera, achikasu pang'ono

Malangizo ogwiritsira ntchito

Mlingo wogwiritsira ntchito wa DB 75 uli pakati pa 0.2% ndi 1.5%, kutengera gawo lapansi ndi zofunikira pakugwira ntchito komaliza:
Mafoam ophatikizana ogwirizana ndi zinthu ziwiri 0.6% – 1.5%
Zomatira 0.5% - 1.0%
Zotsekera 0.2 % – 0.5 %
Deta yochuluka ya magwiridwe antchito a DB 75 ikupezeka pa mapulogalamu ambiri.

Katundu Wathupi

Malo Owira > 200 °C
Malo Owala > 90 °C
Kuchulukana (20 °C) 0.95 – 1.0 g/ml
Kusungunuka (20 °C) g/100 g yankho
Acetone > 50
Benzene > 50
Chloroform > 50
Ethyl acetate > 50

Phukusi:25kg/ng'oma