Rɔba hadnɛs gɛt fɔ du wit di fɔmyulashɔn sistɛm.

in ɔl tu . Chaynish rɔba pat dɛn faktri dɛn . ɛn Vietnam rɔba pat dɛn faktri dɛn . , Hardness na wan pan di impɔtant indikɛtɔ dɛn we de insay rɔba prodak divɛlɔpmɛnt, kwaliti kɔntrol, ɛn kɔstɔm rɔba pat manufakchurin.

hadnes kɔntrol insay . Di pat dɛn we dɛn mek fɔ rɔba . men wan dipen pan .:

Base polimer selekshɔn .

Vulkanizashɔn sistem .

Di fil dɛn we de mek pipul dɛn gɛt mɔ trɛnk .

Plasticizers / Softeners we de mek yu bɔdi sof .

Ki factors we de afɛkt di shore A hardness measurement .

1. Influwens fɔ spɛshal tiknes .

Shore A hardness na di penetration dip na di presa fut.

Insufisɛnt tiknɛs . → Signifikant difɔmeshɔn . → Di wan dɛn we de rid we gɛt ay ay at .

big tik we tik pas ɔl . → Less difɔmeshɔn . → Lower Hardness Ridin .

So, big big wan . Chaynish rɔba pat dɛn faktri dɛn . Strikt wan fala standad tiknes rikwaymɛnt fɔ mek shɔ se batch kɔnsistɛns.

2. Influwens ɔf prɛsa fut projɛkshɔn lɔng .

Akɔdin to standad, di indenter fɔ kɔmɔt na do . 2,5 mm biyɔn di prɛshɔn sɔfays.

We dɛn prɛs am pan mɛtal ɔ glas, di hadnɛs tɛsta fɔ rid . 100°.
If di projɛkshɔn lɔng deviet, sistamɛtik mɛzhɔmɛnt mistek dɛn apin.
So, ɔl tu di Chaynish ɛn Vietnam faktri dɛn kin ɔltɛm kalibrayt hadnɛs tɛsta dɛn.

3. Influwens fɔ Indenter Tip Kɔndishɔn .

Wear of di indenter tip chenj in dayamita, chenj di prɛshɔn fɔ wan yunit eria.

Big big tip eria → prɛshɔn we smɔl . → Di wan dɛn we de rid we gɛt ay ay at .

Di wan dɛn we de mek rɔba sil, hos, ɛn vaybreshɔn aysolɛta dɛn kin tek ples fɔ indɛnt dɛn we dɔn pwɛl ɔltɛm fɔ mek dɛn kɔntinyu fɔ kɔrɛkt.

4. Influwens ɔf Tɛmpratura .

Rɔba na tɛmpracha-sɛnsitiv .: Di tɛmpracha we ay pasmak de ridyus di had we ..

Sɛnsitiviti kin chenj bay polima .:

NR → I nɔ gɛt bɛtɛ sɛnsitiviti .

CR, SBR → Mɔ sɛnsitiv

Ɔl tu di Chaynish ɛn Vietnam rɔba faktri dɛn kin tɛst hadnɛs na . 23 ± 2 ° C ..

5. Influwens fɔ ridin tɛm .

Afta di indenter go insay di rɔba in fes, . Krio difomeshɔn de apin .:

Ridin kwik kwik wan kwik kwik wan . → Di valyu we ay pas ɔl .

Stabilized ridin . → Di valyu we smɔl pas ɔl .

Di difrɛns kin bi . 5–7 Shore A ..
So, dɛn kin tek hadnɛs ridin dɛn . insay 1 sɛkɔn . Afta yu dɔn prɛs.

Di we dɛn fɔ ajɔst di we aw dɛn de ajɔst di rɔba hadnɛs .

1. Adjɔst di fil fɔ lod .

Fɔ mek di fil dɛn we de mek pipul dɛn gɛt mɔ ɛn mɔ ɛn mɔ, bɔku mɔ ɛn mɔ.

Di kɔmpawnd dɛn we gɛt ay at → Di tin dɛn we de insay di fil we gɛt ay fil, we gɛt lɔw polima kɔntinyu

Bɔt di prɔses kin at fɔ du .

Faktɔri dɛn we de prodyuz . Di pat dɛn we gɛt ay-had we gɛt ay at . (Sɔpɔt blɔk, vaybreshɔn pad) tek tɛm balans riinfɔsmɛnt ɛn wokabiliti.

2. Fɔ ajɔst di tin dɛn we de insay di sɔlfɔ .

Mɔ sɔlfɔ → ay krɔs-link dɛnsiti → Di Hadnɛs we ay pas ɔl ..

Di bɛnifit dɛn we pɔsin kin gɛt .:

Stebul fɔmyuleshɔn .

Gud prɔsesin pefɔmɛns .

Disadvantej .:

Poor heat resistans .

Dat mek, Vietnam rɔba pat dɛn faktri dɛn . Yuz dis we fɔ yuz kɔnsavayv fɔ mek prɔdak dɛn we nɔ de ɔt.

3. Adjɔst di tin dɛn we de insay di plastisayza .

Effective fɔ . Sɔft kɔmpawnd dɛn we de dɔŋ 60°A ..

Plastikiza dɛn kin rili ɛp fɔ mek dɛn ebul fɔ chenj di we aw dɛn kin ebul fɔ chenj di sɔft sil dɛn, di gaskɛt dɛn, ɛn di tin dɛn we dɛn kin yuz fɔ mek tin dɛn we dɛn kin yuz fɔ mek tin dɛn.

Base Hardness fɔ kɔmɔn rɔba matirial dɛn .

Dɛn bays hadnɛs valyu ya de sav as impɔtant rɛfrɛns data fɔ ɔl tu di Chaynish ɛn Vietnam rɔba faktri dɛn we dɛn de disayn nyu fɔmyulashɔn dɛn.

Efεkt כf filεr / plasticizers pan hadnes  

Hadnɛs chenj per . 1 phr adishɔn .:

Filla dɛn we de mek di had we dɛn de wok tranga wan .

FEF / Haf / EPC: +0.5

ISAF we de na di wɔl.: +2.5

Saf, silika we dɛn dɔn fumed .: +2.5

SRF we de na di .: +0.33

Silika we gɛt wata fɔ mek wata gɛt wata .: +0.4

thermal blak / had kle .: +0.25

Kalsiɔm kabɔnɛt .: +0.167

Kalsiɔm kabɔnɛt we dɛn kɔt .: +0.142

Di tin dɛn we dɛn de yuz fɔ mek di tin dɛn we dɛn de yuz fɔ mek tin dɛn nɔ at fɔ du .

Mineral rɔba .: –0.2

Fɛt Plastisayza dɛn .: –0.67

Naphthenic Oil / Paraffinic Oil .: –0.5

Oil we gɛt aromat .: –0.588

Rubber Hardness Ɛstimat fɔmula .

Estimated Hardness = Base Hardness + (dosage × Hardness Chenj valyu)

Dis kɔlkyulɛshɔn mɔdel na in dɛn de yuz bɔku bɔku wan insay . Custom Rubber Parts Design . Bay ɔl tu di Chaynish ɛn Vietnam rɔba faktri dɛm, we de ɛnabul fɔ mek dɛn mek fast fɔmyulashɔn prɛdikshɔn ɛn aksɛleret divɛlɔpmɛnt saykl dɛm.

Rɔba hadnɛs gɛt fɔ du wit di fɔmyulashɔn sistɛm.