Rɔba a wɔde afra: nneɛma a ɛkɔ akyiri, mfaso horow, ne nea wɔde di dwuma .

1. FKM aduru (FKM) .

Agyapadeɛ:

• Ɔhyew a ɛyɛ den yiye (-20°C kosi +250°C).

• Ngo, pɛtro, nnuru a wɔde yɛ nneɛma, acid, ne nnyinaso a ɛyɛ soronko a ɛko tia.

• Ahoɔden a ɛkorɔn a ɛtwetwe ade (10–20 MPa), nhyɛso a ɛba fam (<15% wɔ 150°C/70h).

• Ogya a ɛmma ogya ntumi nhyew (UL94 V-0 rating) ne ozone a ɛko tia.

Mfaso a ɛwɔ so:

• Wɔde ayaresa (sɛ nhwɛso no, bisphenol AF, peroxide) adi kan de vulcanization ayɛ adwuma yiye.

• kura dimensional stability wɔ nnuru a ɛyɛ hu a atwa yɛn ho ahyia mu.

• FDA-a ɛne no hyia abasobɔde a ɛwɔ hɔ ma aduan/aduruyɛ mu nkitahodi.

Nneɛma a wɔde di dwuma:

• Ahunmu: Petrol nhyehyɛe O-rings, engine seals, ne diaphragms.

• Kar: turbocharger gaskets, transmission seals, ne petrol injectors.

• Nnuru: pɔmpɛ a wɔde hyɛ mu, nkongua a wɔde valve ayɛ, ne hose nhyiam ahorow.

2. HNBR aduru (HNBR) .

Agyapadeɛ:

• Ɔhyew a ɛko tia +150°C (intermittent +175°C).

• Ngo, amine, ne nsu mu nsu a wɔko tia no yiye.

• Ahoɔden a ɛkorɔn a ɛtwetwe ade (15–35 MPa) ne ɔbrɛ a ɛko tia.

• Mframa a ɛkɔ mu no sua.

Mfaso a ɛwɔ so:

• pre-vulcanized ma bere a wɔde yɛ adwuma no so atew.

• Ɛkɔ so yɛ den wɔ nsɛm ho amanneɛbɔ a emu yɛ den a ɛda adi bere tenten no ase.

• a ɛwɔ peroxide- anaa sulfur-cured grades mu.

Nneɛma a wɔde di dwuma:

• Oil & Gas: Nneɛma a wɔde tutu fam, atɛkyɛ pɔmpɛ a wɔde hyɛ mu, ne nneɛma a ɛwɔ ti no mu.

• Kar: Bere a wɔde bɔ ti, petrol a wɔde gu mu, ne turbocharger hoses.

• Mfiridwuma: Hydraulic cylinder nsɔano ne gearbox afã horow.

3. NBR aduru (NBR) .

Agyapadeɛ:

• Ngo a ɛko tia a ɛyɛ mmerɛw (eye sen EPDM, a ennu HNBR).

• Ɔhyew a ɛwɔ hɔ: -40°C kosi +120°C.

• Abrasion ahoɔden a ɛkorɔn (ASTM D5963: 100–200 mm3 a ɛyera).

• Esilience pa ne compression set resistance.

Mfaso a ɛwɔ so:

• Ɛho ka sua wɔ moldability a ɛkyɛn so.

• Acrylonitrile a ɛwɔ mu a wotumi sesa (18–50%) ma ngo a wɔayɛ no sɛnea ɛfata.

Nneɛma a wɔde di dwuma:

• Kar: Petrol hoses, O-rings, ne transmission seals.

• Mfiridwuma: Conveyor abɔso, nhoma a wɔde tintim nhoma, ne nsu a wɔde hyɛ nsu mu.

• Adetɔfo: latex nsateaa ne agumadi ho nneɛma.

4. EPDM aduru (Ethylene propylene diene monomer) .

Agyapadeɛ:

• Ozone/wim tebea a ɛda nsow ( nnɔnhwerew 5,000+ wɔ QUV sɔhwɛ mu).

• Ɔhyew a ɛwɔ hɔ: -50°C kosi +150°C.

• dielectric ahoɔden a ɛkorɔn (20–30 kV/mm) ne nsu a ɛnyɛ yiye.

• Mframa a ɛwɔ mu a ɛba fam.

Mfaso a ɛwɔ so:

• Pre-formulated a wɔde antioxidants ne UV stabilizers ayɛ.

• Vibration damping a ɛkyɛn so (ɔhwere ade: 0.1–0.3).

Nneɛma a wɔde di dwuma:

• Kar: Ɔpon ano nsɔano, radiator hoses, ne engine mounts.

• Ɔdansi: ɔdan atifi ntini, atare a wɔde hyɛ mu, ne mfɛnsere mu gaskets.

• Electrical: Cable insulation ne power transmission belts.

5. MPU aduru (MPU) .

Agyapadeɛ:

• Ahoɔden a ɛkorɔn a ɛtwetwe ade (20–60 MPa) ne nea ɛyɛ den (ɛkɔ 800% tenten).

• Abrasion resistance soronko (ASTM D5963: 20–50 mm3 a ɛyera).

• Ɔhyew a ɛkɔ soro: -40°C kosi +100°C (ɛkɔ +120°C a ɔhyew a ɛma ɛyɛ den wom).

• a ɛko tia nnuru a wɔde yɛ nneɛma ne nsu a wɔde yɛ nneɛma.

Mfaso a ɛwɔ so:

• Nneɛma a ɛyɛ den a wotumi sesa (shore a 50–95).

• Wɔde ma wɔ cast, millable, anaa thermoplastic grades mu.

Nneɛma a wɔde di dwuma:

• Mfiridwuma: Ntwahonan, rollers, ne conveyor belts.

• Kar: Suspension bushings, shock absorbers, ne CV joint boots.

• Aduruyɛ: catheters, nnompe mu ntini, ne aduru a wɔde yɛ nipadua no.

6. ACM aduru (ACM) .

Agyapadeɛ:

• Ɔhyew a ɛkɔ so gyina hɔ ma +150°C (intermittent +175°C).

• Nneɛma a ɛkyɛn so a ɛko tia nsu a ɛde kɔ nipadua no mu a ɛyɛ adwuma ankasa (ATF), ngo, ne ɔhyew.

• Ozone a ɛkɔ fam ne wim tebea a ɛko tia.

• Ahoɔden a ɛyɛ den: 7–15 MPa.

Mfaso a ɛwɔ so:

• Pre-blended ne amine anaa peroxide ayaresa a wɔde sa yare ntɛmntɛm.

• Ɔkura dimensional stability wɔ ATF mmeaeɛ.

Nneɛma a wɔde di dwuma:

• Kar: Nsɔano a wɔde fa nneɛma so, O-rings, ne pump diaphragms.

• Power steering nhyehyɛe no mu nneɛma.

• Industrial: Pump seals ma nsɛm ho amanneɛbɔ a egyina ngo so.

7. AEM aduru (AEM) .

Agyapadeɛ:

• Ɔhyew a ɛtrɛw (-40°C kosi +150°C).

• Ngo, glycols, ne wim tebea a ɛko tia.

• Ahoɔden a ɛkorɔn a ɛtwetwe ade (10–20 MPa) ne nhyɛso set a ɛko tia.

• Mframa a ɛkɔ mu no sua.

Mfaso a ɛwɔ so:

• Ɛkari pɛ wɔ ɔhyew a ɛko tia ne nea ɛyɛ mmerɛw sɛ ɛbɛdannan mu.

• a ɛko tia hydrolysis ne onyin.

• a ɛwɔ peroxide- anaa sulfur-cured grades mu.

Nneɛma a wɔde di dwuma:

• Kar: radiator hoses, coolant system no afã horow, ne mframa a wɔde di dwuma hoses.

• Mfiridwuma: Conveyor abɔso a wɔde di dwuma wɔ nnuru ho ne pump diaphragms.

• HVAC: Duct gaskets ne vibration isolators.