Mpɛn pii no, ahwehwɛ nhwiren no mu yɛ den fi 6 kosi 7, bere a ahwehwɛ nhwiren a wɔde afrafra ayɛ no den yɛ 7.5 kosi 8.5. Saa gyinapɛn ahorow yi gyina Mohs hardness scale a ɛkyerɛ sɛnea ade bi ntumi nsɛe anaasɛ ɛbɛkɔ mu no so. Alloy beads, esiane sɛ wɔde dade nneɛma pii ka ho nti, ɛwɔ denden a ɛkorɔn, a ɛno nso kyerɛ sɛ ɛyɛ den-resistant kɛse na ebetumi akura wɔn twitwa tumi mu bere tenten.
1. Glass Beads a Ɛyɛ Den
Wɔde ahwehwɛ nhwiren, sɛ ade a ɛyɛ den a wɔtaa yɛ no, di dwuma kɛse wɔ nneɛma te sɛ dade, plastic, ne nnua a wɔde yɛ nneɛma a ɛwɔ soro no mu. Mpɛn pii no, wɔn denden fi 6 kosi 7, na ɛkyerɛ sɛnea wotumi ko tia sɛ wɔbɛtwetwe anaasɛ wɔbɛkɔ mu bere a wɔde ahoɔden a efi akyi di dwuma no. Ɛmfa ho sɛ ɛyɛ den yiye no, ebia ahwehwɛ nhwiren no nkwa nna sua wɔ mmeae bi a ɛyɛ kɛse-ahyɛ.
2. Alloy Beads a ɛyɛ den
Sɛ wɔde toto ahwehwɛ nhwiren ho a, ahwehwɛ nhwiren da mfaso kɛse adi wɔ sɛnea ɛyɛ den mu. Wɔnam dade nneɛma pii a wɔde frafra so na ɛyɛ alloy beads, na ɛma ɛyɛ den kɛse na ɛko tia sɛ ɛbɛsɛe yiye. Wɔn denden taa fi 7.5 kosi 8.5, na ɛma alloy microbeads tu mpɔn kɛse wɔ yiyi mu sintɔ ahorow a ɛwɔ soro no mu na ɛmma nneɛma a wɔde kata so no sɛe bere a wɔreyɛ nneɛma te sɛ aduru a wɔde petepete ne anhwea a wɔde bɔ mu no. Alloy microbeads a ɛyɛ den kɛse no nso kyerɛ sɛ wɔkura wɔn twa adwumayɛ mu kyɛ, ɛma adwumayɛ tu mpɔn na ɛtew ɛka so.
3. Glass Beads ne Alloy Microbeads a wɔde di dwuma
Glass ne alloy microbeads nyinaa wɔ dwumadie ahodoɔ pii wɔ surface treatment mu. Wɔde ahwehwɛ nhwiren di dwuma titiriw sɛ abrasives anaa fillers, na ɛma nneɛma a ɛwɔ soro no yɛ mmerɛw na ɛyɛ tratraa denam friction ne impact so. Nanso, wɔtaa de alloy microbeads di dwuma kɛse wɔ akwan a ɛyɛ den a wɔde sa asase ani, te sɛ anhwea a wɔde bɔ no pɛpɛɛpɛ ne nea wɔde petepete so, na ama wɔanya nneɛma a wɔayɛ no yiye kɛse.
