Polyurethane rubber zvisimbiso, yakagadzirwa kubva ku polyurethane rubber zvinhu, zvikamu zvakakosha mune zvakasiyana-siyana zvekushandiswa kwemaindasitiri. Zvisimbiso izvi zvinouya nenzira dzakasiyana siyana, kusanganisira maO-rings, V-rings, U-rings, Y-rings, rectangular seals, seal-shaped seals, uye sealing washers.
Polyurethane rabha, yakagadzirwa polymer, inovhara mukaha pakati pechisikigo rabha nemapurasitiki akajairwa. Inonyanya kushandiswa musimbi sheet pressure processing, iyo polyurethane rabha iri mubvunzo ndeyemhando yepolyester yekukanda. Inogadzirwa kubva kune adipic acid uye ethylene glycol, zvichiita kuti polymer ine molecular uremu hunosvika 2000. Iyi polymer inogadziriswa zvakare kuti iite prepolymer ine isocyanate yekupedzisira mapoka. Iyo prepolymer inozosanganiswa neMOCA (4,4′-methylenebis(2-chloroaniline)) uye inokandwa mu mold, inoteverwa neyechipiri vulcanization kugadzira polyurethane rubber zvigadzirwa zvine kuomarara kwakasiyana siyana.
Iko kuomarara kwepolyurethane rubber seals inogona kugadzirwa kuti isangane neyakasiyana pepa simbi yekugadzirisa zvinodiwa, kubva pa20A kusvika 90A paShore kuomarara chiyero.
Maitiro Akakosha Ekuita:
- Exceptional Wear Resistance: Polyurethane rabha inoratidza yakanyanya kupfeka kuramba pakati pemarudzi ese erabha. Ongororo dzemurabhoritari dzinoratidza kuti kusamira kwayo kunosvika katatu kusvika kashanu kune yerabha yechisikigo, ine maapplication epasirese anowanzo kuratidza kusvika kagumi pakusimba.
- High Strength uye Elasticity: Mukati meShore A60 kusvika kuA70 kuoma kwerenji, polyurethane rabha inoratidza kusimba kwepamusoro uye kusimba kwakanakisa.
- Superior Cushioning uye Shock Absorption: Patembiricha yekamuri, polyurethane rubber zvikamu zvinogona kutora 10% kusvika 20% yevibration simba, ine yakakwirira kunyura mareti pakuwedzera kuzunguza frequency.
- Yakanakisa Oiri uye Chemical Resistance: Polyurethane rubha inoratidza kushoma hukama kune asiri-polar mineral oiri uye inoramba isingakanganisike nemafuta (separafini nepeturu) nemafuta emuchina (senge hydraulic nemafuta ekuzora), anodarika general-chinangwa rubber uye kukwikwidza nitrile rabha. Nekudaro, inoratidza kuzvimba kwakanyanya mumadoro, esters, uye anonhuwirira hydrocarbons.
- Yakakwira Friction Coefficient: Kazhinji pamusoro pe 0.5.
- Zvimwe Zvivakwa: Yakanaka kudzika-tembiricha kuramba, ozone kuramba, kusamira nemwaranzi, insulation yemagetsi, uye adhesion zvimiro.
Applications:
Zvichipa hukuru hwayo hwepanyama uye hwemagetsi, polyurethane rubber inowanzoshandiswa mukushanda kwepamusoro-soro, kusanganisira zvigadzirwa zvisingapfekeki, zvinhu zvine simba guru-zvinodzivirira mafuta, uye kuoma kwepamusoro, high-modulus components. Inowana kushandiswa kwakakura mumaindasitiri akasiyana siyana:
- Michina neMotokari: Kugadzira yakakwira-frequency braking buffer zvinhu, anti-vibration rabha zvikamu, zvitubu zverabha, mabatanidzwa, uye machira emuchina zvikamu.
- Oiri-Resistant Products: Kugadzira ma roller ekudhinda, zvisimbiso, midziyo yemafuta, uye zvisimbiso zveoiri.
- Harsh Friction Environments: Inoshandiswa mumapombi ekutakura, simbi yekukuya, masikirini, mafirita, soli dzeshangu, mavhiri ekutyaira, mabhureki, mabhureki, uye matayi ebhasikoro.
- Cold Kutsikirira uye Kupeta: Kushanda sechinhu chitsva chinotonhora kudzvanya uye kubhenda maitiro, kutsiva simbi inofa iyo inodya nguva uye inodhura.
- Foam Rubber: Nekusimudzira maitiro emapoka e-isocyanate nemvura kuburitsa CO2, lightweight furo rabha ine yakanakisa mechaniki zvivakwa inogona kugadzirwa, yakanakira kuvharisa, kupisa kupisa, kudzivirira inzwi, uye anti-vibration application.
- Zvishandiso zvekurapa: Zvinoshandiswa muzvikamu zvinoshanda zverabha, tsinga dzeropa dzekugadzira, ganda rekugadzira, infusion machubhu, zvinhu zvekugadzirisa, uye kushandiswa kwemazino.
Nguva yekutumira: Sep-17-2025