Pehea e koho ai i ka pahi ʻoki ʻoki ʻoki ʻoki ʻana i ka papa uʻi

Ua lilo ʻo Fiber Cement Board (FCB) i mea waiwai nui i ke kūkulu ʻia ʻana ma muli o kona ikaika kiʻekiʻe, ke kūpaʻa ahi, ka pale ʻana i ka wai, a me ka lōʻihi. Eia nō naʻe, ʻo kāna ʻano hana like ʻole—ka hui ʻana i ka sima Portland, nā ʻili lāʻau, ke one silica, a me nā mea hoʻohui - he mau pilikia nui i ka wā o ka ʻokiʻoki: ʻokiʻoki kiʻekiʻe (pili i ka ʻoki ʻana i ka ʻaoʻao), ʻike silica kiʻekiʻe (hoʻoulu i ka lepo silica crystalline respirable, kahi pōʻino olakino i hoʻoponopono ʻia e OSHA 1926.1153), a me nā waiwai abrasive. No nā mea hana, nā mea hana aelike, a me nā mea hana, ke koho ʻana i ka pahi ʻili kūpono ʻaʻole ia e pili ana i ka hōʻoia ʻana i ka maikaʻi a me ka maikaʻi; ʻo ia hoʻi e pili ana i ka mālama ʻana i nā kūlana palekana, ka pale ʻana i ke olakino o nā limahana, a me ka pale ʻana i ka pōʻino o nā lako.

Hoʻokaʻawale kēia ʻatikala i ke kaʻina koho ma ka nānā ʻana i nā mea i ʻoki ʻia (FCB), ʻike i nā kikoʻī o ka lau, nā mea hoʻohālikelike, nā kūlana hana, a me nā hiʻohiʻona noiʻi - ua kūlike nā mea a pau me nā koi o ka OSHA respirable crystalline silica standards a me nā hana ʻoihana maikaʻi loa.

2. Ka 'Ikepili o ka Mea Oki: Fiber Cement Board (FCB) 'Ano

ʻO ka hana mua i ke koho ʻana i ka ʻili ʻili, ʻo ia ka hoʻomaopopo ʻana i nā waiwai o ka mea, ʻoiai lākou e hoʻoholo pololei i ka hana pono o ka ʻili.

2.1 Ka Hoʻokumu ʻana a me ka ʻoki ʻana i nā pilikia

He 40-60% Portland sima (ho'olako ikaika ana) na papa laau sima fiber, 10-20% laau (e ho'onui i ka pa'akikī), 20-30% ke one silica (ho'omaika'i i ka density), a me nā mea ho'ohui li'ili'i (ho'emi i ka hakihaki). Hoʻokumu kēia haku mele i ʻekolu mau pilikia ʻokiʻoki:

• Hanana lepo silica: Hoʻopuka ke one silica ma FCB i ka lepo silica crystalline respirable i ka wā e ʻoki ai. Kauoha ʻo OSHA 1926.1153 i ka hoʻomalu ʻana i ka lepo (e laʻa, nā ʻōnaehana hoʻoheheʻe kūloko/LEV), no laila pono e kūpono ka maka ʻili me nā mea ʻohi lepo e hōʻemi i ka pakele o ka lepo.
• ʻO ka brittleness a me ka ʻokiʻoki ʻana: He palupalu ke kima-sand matrix, aʻo nā fiber lāʻau e hoʻohui iki i ka maʻalahi. ʻO ka ikaika ʻoki ʻole a i ʻole ka hoʻolālā niho ʻike ʻole i maʻalahi ke kumu i ka ʻoki ʻana i ka lihi, e pili ana i ka hoʻokomo ʻana o ka papa a me ka maikaʻi nani.
• Abrasion: Ke hana nei ke one silica ma ke ano he abrasive, accelerating saw blade. Pono ke kūpale kiʻekiʻe o ka ʻili a me nā mea niho no ka mālama ʻana i ke ola lōʻihi.

2.2 Nā Pono Kino e pili ana i ke koho ʻana i ka ʻike maka

• ʻO ka mānoanoa: Aia ka mānoanoa FCB mai ka 1.2 a i ka 1.8 g/cm³. Pono nā papa kiʻekiʻe (e laʻa, nā pā o waho) i nā lau ʻike me nā mea niho ʻoi aku ka paʻakikī (e laʻa, daimana a i ʻole tungsten carbide) e pale i ka pōloli wikiwiki.
• mānoanoa: ʻO ka mānoanoa FCB maʻamau he 4mm (nā ʻāpana o loko), 6-12mm (ka uhi ʻana o waho), a me 15-25mm (nā papa hana). Ke koi nei nā papa mānoanoa i nā lau me ka lawa o ka hohonu o ka ʻokiʻoki a me nā matrices paʻa e pale ai i ka pale ʻana i ka ʻoki ʻana.
• Hoʻopau ʻili: Pono ʻo FCB maʻemaʻe (no nā mea hoʻonaninani) i nā lau ʻike me nā niho maikaʻi a me nā pale anti-friction e pale aku i nā ʻōpala o ka ʻili, ʻoiai ʻo FCB-ʻili ʻili (no ka hoʻohana ʻana i ka hoʻolālā) e hiki ai i nā hoʻolālā niho koʻikoʻi e hoʻomaikaʻi i ka pono.

3. Nā ʻōlelo kikoʻī o ka Blade: Nā ʻāpana koʻikoʻi no ka ʻoki ʻana i ka papa sima fiber

Ma muli o nā hiʻohiʻona o FCB a me nā kūlana OSHA (e laʻa, nā palena anawaena o ka ʻili no ka hoʻomalu ʻana i ka lepo), ʻaʻole hiki ke hoʻopaʻa ʻia nā ʻāpana ʻike ma lalo nei no ka hana maikaʻi loa a me ka hoʻokō.

3.1 Ke Anawaena Blade: Hoʻokō koʻikoʻi me ≤8 Iniha

No ka OSHA 1926.1153 Papa 1 a me nā palapala hoʻomaʻamaʻa maikaʻi loa,pono e hoʻohana nā ʻili mana lima lima no ka ʻoki ʻana i ka FCB i nā lau me ke anawaena o 8 iniha a emi mai paha. ʻAʻole pono kēia koi:

• Kūlike ohi lepo: Ke hilinaʻi nei ka ʻoki ʻana o FCB i nā ʻōnaehana hoʻoheheʻe kūloko (LEV). ʻOi aku ka nui o nā ʻīniha ma mua o 8 ʻīniha i ka hiki ke kahe ea o ka ʻōnaehana LEV (ke kauoha ʻo OSHA i ≥25 cubic kapuaʻi i kēlā me kēia minuke [CFM] o ke kahe ea no kēlā me kēia ʻīniha o ke anawaena o ka lau). No ka la'ana, he ≥250 CFM ka maka he 10-inihi—ma mua o ka hiki o ka LEV o ka ike lima ma'amau—e alaka'i ana i ka ho'oku'u 'ia o ka lepo.
• Palekana hana: ʻO nā lau liʻiliʻi liʻiliʻi (4-8 ʻīniha) e hōʻemi i ka inertia rotational o ka saw, e maʻalahi ai ka hoʻomalu ʻana i ka wā e hana ai i ka lima, ʻoi aku ka nui no nā ʻoki kū pololei (e laʻa, nā panela o waho) a i ʻole nā ​​ʻoki pololei (e laʻa, wehe pukaaniani). ʻO nā lau nui aʻe e hoʻonui i ka pilikia o ka pale ʻana a i ʻole ka kickback, e hōʻike ana i nā pōʻino palekana.

Nā koho anawaena maʻamau no ka ʻoki FCB: 4 iniha (nā ʻoki lima liʻiliʻi no nā ʻoki haiki), 6 ʻīniha (ʻoki ʻia FCB kumu nui), a me 8 ʻīniha (nā pana FCB mānoanoa, a hiki i 25mm).

3.2 Mea Matrix Blade: Ke Kaulike ʻana i ka Rigidity a me ke Kūʻai Wela

Pono ka matrix (ke "kino" o ka maka saw) e kū i ka abrasion o FCB a me ka wela i hana ʻia i ka wā ʻoki. Hoʻohana ʻia ʻelua mau mea mua:

• kila paʻakikī (HSS): He kūpono no ka ʻokiʻoki haʻahaʻa haʻahaʻa (e laʻa, ka hoʻopā ʻana ma ka pūnaewele). Hāʻawi ia i ka rigidity maikaʻi akā ke kū ʻole i ka wela— ʻo ka ʻoki lōʻihi hiki ke hoʻoulu i ka matrix warping, e alakaʻi ana i nā ʻoki like ʻole. ʻO nā matrices HSS he kumu kūʻai akā makemake i nā loli pinepine no ka hana nui.
• Ke kila carbide-tipped steel: He kūpono no ka ʻoki ʻana i ka leo kiʻekiʻe (e laʻa, ka hana mua o ka hale hana o nā panela FCB). Hoʻonui ka carbide coating i ka pale ʻana i ka ʻaʻahu, aʻo ke kumu kila e mālama i ka rigidity. Hiki iā ia ke pale i ka ʻoki mau ʻana o 500+ FCB panels (6mm mānoanoa) me ka ʻole o ka warping, e hoʻohālikelike me nā pono hana pono.

3.3 Hoʻolālā niho: Kāohi i ka ʻoki ʻana a me ka hōʻemi ʻana i ka lepo

Hoʻopili pololei ka hoʻolālā niho i ka maikaʻi o ka ʻoki ʻana (ka maʻalahi o ka ʻaoʻao) a me ka hana lepo. No FCB, he mea koʻikoʻi kēia mau hiʻohiʻona niho:

• Helu niho: 24-48 niho no ka maka. ʻO ka helu niho haʻahaʻa (24-32 niho) no ka FCB mānoanoa (15-25mm) a i ʻole ka ʻoki wikiwiki ʻana—ʻo ka liʻiliʻi o nā niho e hōʻemi i ka hakakā a me ka wela akā hiki ke hōʻeha iki. ʻO ka helu ʻana o nā niho kiʻekiʻe (36-48 niho) no ka FCB lahilahi (4-12mm) a i ʻole nā ​​panela laumā—ʻoi aku ka nui o nā niho e puunaue like i ka ikaika ʻoki, e hōʻemi ana i ka ʻoki ʻana.
• ʻAno niho: ʻO ka bevel luna ʻē aʻe (ATB) a i ʻole ʻekolu-chip grind (TCG). He kūpono nā niho ATB (me nā kihi kihi) no ka ʻoki ʻana i nā mea palupalu e like me FCB, ʻoiai lākou e ʻokiʻoki i ka matrix sima me ka ʻole o ka ʻoki ʻana i nā kihi. Hāʻawi nā niho TCG (kahi hui pū ʻana o nā ʻaoʻao pālahalaha a me nā ʻaoʻao beveled) i hoʻonui ʻia no ka FCB abrasive, e kūpono ai no ka ʻoki leo kiʻekiʻe.
• Kaʻawale niho: Manaʻo ʻia ka spacing ākea (≥1.5mm) no ka pale ʻana i ka lepo. Hoʻopuka ka ʻoki ʻana o FCB i ka lepo maikaʻi; Hiki ke hoʻopaʻa i ka lepo ma waena o nā niho, e hoʻonui ana i ka friction a me ka hoʻemi ʻana i ka wikiwiki o ka ʻoki ʻana. ʻOi aku ka nui o ka mamao e hiki ai i ka lepo ke pakele manuahi, me ka hoʻohālikelike ʻana me ka ʻohi lepo ʻōnaehana LEV.

3.4 Ka uhi: Hoʻonui i ka hana a me ke ola

ʻO nā pale anti-friction e hōʻemi i ke kūkulu ʻana i ka wela a me ka hoʻopili ʻana i ka lepo, e hoʻolōʻihi i ke ola o ka lau a hoʻomaikaʻi i ka ʻoki ʻana. ʻO nā uhi maʻamau no nā lau ʻike FCB:

• Titanium nitride (TiN): ʻO ka uhi kala gula e hōʻemi ana i ka friction ma 30-40% ke hoʻohālikelike ʻia me nā ʻili i uhi ʻole ʻia. He kūpono no ka ʻokiʻoki FCB maʻamau, pale ia i ka lepo mai ka pipili ʻana i ka lau, e hōʻemi ana i ka manawa hoʻomaʻemaʻe.
• kalapona like daimana (DLC): ʻO ka uhi paʻakikī loa (ka paʻakikī ≥80 HRC) e kūʻē i ka abrasion mai ke one silica. Hiki i nā lau i uhi ʻia e DLC ke lōʻihi 2-3 mau manawa ma mua o nā lau i uhi ʻia ʻo TiN, e hoʻolilo iā lākou i kumu kūʻai no ka hana FCB kiʻekiʻe.

4. Mea Hoʻohālikelike: Hoʻopololei i nā ʻili ʻili me nā mīkini ʻoki

ʻAʻole hiki ke hana maikaʻi ka ʻili ʻili kiʻekiʻe me ka ʻole o nā lako ʻoki kūpono. Ma nā alakaʻi OSHA, hilinaʻi ka ʻoki ʻana o FCBʻili mana paʻa lima me nā ʻōnaehana hoʻomalu lepo—a i ʻole ka hoʻoheheʻe ʻia ʻana o ka wai (LEV) a i ʻole nā ​​​​pūnaewele hāʻawi wai (ʻoiai makemake ʻia ʻo LEV no FCB e pale aku i ke kūkulu ʻana o ka slurry pulu).

4.1 Nā Lako Nui: Nā ʻili Mana Paʻa me nā Pūnaehana LEV

Kauoha ʻo OSHA i nā ʻili lima no ka ʻoki FCB pono e lako menā ʻōnaehana ohi lepo i kūʻai ʻia(LEV) e kū ana i ʻelua mau koina koʻikoʻi:

• Kaha ea: ≥25 CFM i kēlā me kēia ʻīniha o ke anawaena o ka maka (e laʻa, pono ka 8-inihi ≥200 CFM). Pono ke anawaena o ka pahi ike e like me ka holo ana o ka lewa LEV—e hoohana ana i ka pahi 6-inihi me ka 200 CFM nenoai (hoonui ka ea ea i ka ohi lepo), aka, he 9-inihi ka pahi me ka nenoai like ole.
• Kānana pono: ≥99% no ka lepo respirable. Pono ka kānana o ka ʻōnaehana LEV e hopu i ka lepo silica e pale ai i ka ʻike ʻana o ka mea hana; pono e hoʻolālā ʻia nā lau ʻike e kuhikuhi i ka lepo i ka uhi o ka ʻōnaehana (e laʻa, kahi ʻāpana lau concave e hoʻolele i ka lepo i loko o ke awa hōʻiliʻili).

Ke hoʻohālikelike i nā ʻili ʻili me nā ʻili lima lima, e nānā i kēia:

• Ka nui o ka arbor: Pono e kūlike ka lua waena o ka pahi ʻike (arbor) me ke anawaena spindle o ka pahi (nā nui maʻamau: 5/8 ʻīniha a i ʻole 1 ʻīniha). ʻO ka puʻu kūpono ʻole ke kumu o ka ʻāwili ʻana o ka maka, e alakaʻi ana i nā ʻoki like ʻole a me ka nui o ka lepo.
• Hoʻopili wikiwiki: Loaʻa i nā lau ʻike ka māmā holo kaʻa palekana (RPM). Hoʻohana maʻamau nā ʻili lima lima no FCB ma 3,000-6,000 RPM; pono e helu ʻia nā ʻili no ka liʻiliʻi loa o ka RPM kiʻekiʻe o ka ʻili (e laʻa, palekana ka maka i helu ʻia no 8,000 RPM no kahi ʻili 6,000 RPM).

4.2 Nā Lako ʻelua: Nā Pūnaehana Hoʻouna Wai (no nā Hōʻike Kūikawā)

ʻOiai makemake ʻia ʻo LEV no ka ʻoki ʻana i ka FCB, hiki ke hoʻohana ʻia nā ʻōnaehana lawe wai (i hoʻohui ʻia i loko o nā ʻili lima lima) no ka ʻoki ʻana i waho o ka leo kiʻekiʻe (e like me ka hoʻokomo ʻana i ka pā o waho). Ke hoʻohana nei i nā ʻōnaehana wai:

• mea ʻike maka: E koho i nā matrices pale ʻino (e laʻa, ka carbide i uhi ʻia me ke kila kila) i mea e pale ai i ka ʻōpala mai ka ʻike ʻana i ka wai.
• Ka uhi niho: Hōʻalo i nā mea hoʻoheheʻe wai; ʻO nā uhi ʻo TiN a i ʻole DLC he kūpaʻa wai a mālama i ka hana.
• Ka hoʻomalu slurry: Pono e hoʻolālā ʻia ka ʻili maka e hōʻemi i ka slurry splatter (e laʻa, he lihi serrated e wāwahi i ka lepo pulu), no ka mea hiki i ka slurry ke pili i ka lau a hoʻemi i ka pono o ka ʻoki.

4.3 Mālama i nā lako: pale i nā ʻili ʻili a me ka hoʻokō

ʻO ka mālama ʻana i nā mea hana maʻamau e hōʻoia i ka hana ʻana o ka lau a me ka hoʻokō OSHA:

• Ka nānā ʻana i ka uhi: E nānā i ka uhi o ka ʻōnaehana LEV (ke ʻāpana e hoʻopuni ana i ka lau) no nā māwae a i ʻole ka pololei ʻole. ʻO kahi uhi pohō e hiki ai i ka lepo ke pakele, ʻoiai me ka maka ʻike kiʻekiʻe.
• Hose pono: E nānā i nā paipu o ka ʻōnaehana LEV no nā kinks a i ʻole nā ​​kahe—e hoʻemi ana ke kahe ʻana o ka ea i ka hōʻiliʻili ʻana i ka lepo a hoʻopaʻa i ka maka ʻike (e piʻi aʻe ka wili mai ka lepo paʻa).
• ʻO ka hoʻopaʻapaʻa ʻana: E hōʻoia i ka hoʻopaʻa pono ʻia ʻana o ka ʻili ʻili ma ka milo. Ke haʻalulu nei ka ʻūhā ʻūlū, e hōʻeha ʻia a ʻaʻahu mua.

5. Ka Hana Hana Kūlana: Hana ʻana i nā ʻili ʻili i nā pono hana

ʻO nā kūlana hana-me ka leo, nā koi pololei, a me nā kūlana hoʻokō-e hoʻoholo i ke koena "kumu-hana" o ke koho ʻana i ka maka.

5.1 Ka Lehulehu Hana: Haʻahaʻa-Volume vs. High-Volume

• ʻO ka hana haʻahaʻa haʻahaʻa (e laʻa, ke ʻoki kūkulu hale ma ka pūnaewele): E hoʻokahua i ka maikaʻi a me ka lawe ʻana. E koho i nā ʻāpana carbide i uhi ʻia e HSS a i ʻole TiN (4-6 iniha ke anawaena) no ka ʻoki ʻana i kekahi manawa. He mea maʻalahi kēia mau lau a maʻalahi hoʻi e hoʻololi, a kūpono ko lākou anawaena liʻiliʻi i nā ʻili lima no ka hiki ke hoʻololi ma ka pūnaewele.
• Hana nui (e laʻa, hana mua ʻana o ka hale hana o nā paneli FCB): E hoʻokahua i ka lōʻihi a me ka pono. E koho i nā lau kalapona i uhi ʻia me DLC (6-8 ʻīniha ke anawaena) me nā hoʻolālā niho TCG. Hiki i kēia mau lau ke kū i ka ʻoki mau ʻana, e hōʻemi ana i ka manawa haʻahaʻa no ka hoʻololi ʻana o ka lau. Hoʻohui hou, hoʻohālikelike iā lākou i nā ʻōnaehana LEV kiʻekiʻe (≥200 CFM no nā lau 8-ʻīniha) e mālama i ka hoʻokō a me ka huahana.

5.2 ʻOki ʻana i nā koi kūpono: Structural vs. Decorative

• ʻO ke kūkulu ʻia ʻana o FCB (e laʻa, nā panela lawe ukana): He kūpono nā koi pololei (± 1mm ​​ʻoki ʻoki). E koho i 24-32 mau lau niho me nā hoʻolālā ATB a i ʻole TCG — ʻoi aku ka liʻiliʻi o nā niho e hoʻomaikaʻi i ka wikiwiki, a ʻo ke ʻano niho e hōʻemi i ka ʻoki ʻana i lawa no ka hoʻonohonoho ʻana.
• FCB hoʻohiwahiwa (e laʻa, nā panela pā i loko me nā ʻaoʻao ʻike ʻia): He koʻikoʻi nā koi pololei (± 0.5mm ʻoki ʻoki ʻia). E koho i 36-48 niho niho me nā hoʻolālā ATB a me nā uhi DLC. ʻOi aku ka nui o nā niho e hōʻoia i nā ʻaoʻao maʻemaʻe, a ʻo ka uhi ʻana e pale i nā ʻōpala, e hālāwai me nā kūlana aesthetic.

5.3 Nā Koina Hoʻokō: OSHA a me nā hoʻoponopono kūloko

ʻO OSHA 1926.1153 ka maʻamau mua no ka ʻoki ʻana i ka FCB, akā hiki i nā lula kūloko ke hoʻokau i nā koi hou (e laʻa, ʻoi aku ka paʻakikī o ka hoʻokuʻu ʻana i ka lepo ma nā kūlanakauhale). Ke koho ʻana i nā lau ʻike:

• Hoʻomalu lepo: E hoʻopaʻa pono i ka ʻae ʻana o nā lau me nā ʻōnaehana LEV (e laʻa, ke anawaena ≤8 iniha, ka lepo hoʻoheheʻe lepo) no ka hoʻokō ʻana i ka palena hōʻike silica respirable o OSHA (50 μg/m³ ma luna o kahi hoʻololi 8-hola).
• Lepili palekana: E koho i nā lau me nā lepili palekana akaka (e laʻa, RPM kiʻekiʻe, anawaena, pili waiwai) no ka hoʻokō ʻana i nā koi o ka lepili ʻana i nā lako a OSHA.
• Ka pale hana: ʻOiai ʻaʻole hāʻawi pololei nā lau ʻike i ka pale hanu, ko lākou hiki ke hōʻemi i ka lepo (ma ka hoʻolālā kūpono) e hoʻokō i ka koi o OSHA no nā mea hanu APF 10 ma nā wahi i hoʻopaʻa ʻia (ʻoiai ʻo ka ʻoki ʻana o FCB ma waho, no nā hana maikaʻi loa).

6. Nā Kūlana Hoʻohana: Hoʻololi i nā ʻili ʻili i nā kūlana ma ka pae

ʻOkoʻa nā hiʻohiʻona ʻoki FCB ma ke kaiapuni (waho vs. loko), ʻano ʻoki (pololei vs. curved), a me ke ʻano o ke aniau—ʻo ia mau mea a pau i ke koho ʻana i ka maka.

6.1 ʻOki ʻana i waho (Ke ʻano kumu mua no FCB)

No nā hana maikaʻi loa o OSHA, ʻo ka ʻoki ʻana ʻo FCBmakemake ʻia ma wahoe hōʻemi i ka hōʻiliʻili o ka lepo (pono ka ʻoki ʻana i loko o nā ʻōnaehana hoʻopau hou aku). Aia nā hiʻohiʻona o waho:

• Hoʻokomo ʻia ka pā pā waho: Pono i nā ʻoki kū pololei a me ka pololei (e kūpono i nā puka puka makani/puka). E koho i nā lau niho ATB 6-ʻīniha (36 niho) me ka uhi ʻia ʻo TiN—hiki ke lawe ʻia no ka hoʻohana ʻana ma ka pūnaewele, a ke pale aku nei ka uhi i ka makū o waho.
• ʻOki ʻana i lalo o ka hale: Pono e oki wikiwiki a pololei ma FCB lahilahi (4-6mm). E koho i nā lau niho TCG 4-inihi (24 niho)—ke anawaena liʻiliʻi no ke komo maʻalahi o ka hale, a mālama nā niho TCG i ka abrasive roofing FCB (maʻiʻo silica kiʻekiʻe).
• Nā manaʻo noʻonoʻo: I loko o nā kūlana haʻahaʻa a ua ʻole paha, e hoʻohana i nā ʻāpana pale ʻino (e laʻa, nā matrices kila kila). Ma nā kūlana makani kiʻekiʻe, e koho i nā lau me nā hoʻolālā niho kaulike e hōʻemi ai i ka haʻalulu (hiki i ka makani ke hoʻonui i ka wili o ka lau).

6.2 ʻOki ʻana i loko (nā hihia kūikawā)

ʻOki ʻia ʻo FCB i loko (e laʻa, ʻae ʻia ka hoʻokomo ʻana i ka pā i loko o nā hale paʻa).hoʻonui i ka mana lepo:

• Ke koho ʻana i ka maka: E hoʻohana i 4-6 mau ʻīniha ʻīniha (ʻoi aku ka liʻiliʻi o ke anawaena = liʻiliʻi o ka lepo lepo) me nā uhi DLC (hoʻemi i ka hoʻopili ʻana o ka lepo). E hōʻalo i nā lau he 8-ʻīniha i loko o ka hale — hoʻonui lākou i ka lepo, ʻoiai me nā ʻōnaehana LEV.
• Hoʻopau kōkua: E hoʻohui i ka ʻili ʻili me nā pā paʻa (e laʻa, nā pā axial) e hoʻohui i nā ʻōnaehana LEV, e kuhikuhi ana i ka lepo i nā puka makani. Pono e kulike ka matrix hoolele lepo o ka pahi me ke ala ea o ka peʻa.

6.3 ʻAno ʻoki: Pololei vs

• ʻOki pololei (maʻa mau loa): E hoʻohana i nā ʻāpana radius piha (nā ʻili ʻili pōʻai maʻamau) me nā niho ATB a i ʻole TCG. Hāʻawi kēia mau lau i nā ʻoki paʻa a pololei no nā panela, studs, a ʻokiʻoki paha.
• ʻOki ʻokiʻoki (e laʻa, nā ʻaoʻao pio): E hoʻohana i nā lau ʻāiki-ākea (≤0.08 iniha ka mānoanoa) me nā niho maikaʻi (48 niho). ʻOi aku ka maʻalahi o nā lau ʻoi aku ka maʻalahi no ka ʻoki ʻoki ʻana, a pale nā ​​niho maikaʻi i ka ʻoki ʻana ma ka ʻaoʻao curved. Hōʻalo i nā lau mānoanoa— ʻoʻoleʻa lākou a hiki i ka haki ʻana i ka wā e ʻoki ʻia ana.

7. Ka Manaʻo Manaʻo: He Pūnaehana Pūnaehana no ke Koho ʻana i ka Blade Saw

ʻO ke koho ʻana i ka lāʻau ʻoki kima fiber kūpono e pono ai ke ʻano holoʻokoʻa e hoʻohui i nā ʻano waiwai, nā ʻāpana ʻike maka, ka hoʻohālikelike ʻana i nā mea hana, nā kūlana hana, a me nā hiʻohiʻona noiʻi - ʻoiai e pili ana i nā kūlana palekana o OSHA. No ka hōʻuluʻulu ʻana i ke kaʻina koho:

1. E hoʻomaka me ka mea: E noʻonoʻo i ka mānoanoa, mānoanoa, a me ka ʻike silica o FCB no ka wehewehe ʻana i nā pono o ka lau ʻike maka (e laʻa, ka pale ʻana no nā papa kiʻekiʻe, ka hoʻomalu lepo no nā papa silica kiʻekiʻe).
2. E hoʻopaʻa i nā ʻāpana ʻili ʻili kī: E hōʻoia i ke anawaena ≤8 'īniha (OSHA compliance), koho i ka matrix/tooth/coating ma muli o ka nui o ka hana (DLC no ka nui-nui) a me ka pololei (helu niho kiʻekiʻe no nā ʻoki hoʻonaninani).
3. Hoʻohālikelike i nā mea hana: E hōʻoia i ka nui arbor, RPM kūpono, a me ka lewa ʻōnaehana LEV (≥25 CFM/ʻīniha) e hōʻoia i ka hana maikaʻi loa a me ka hoʻomalu lepo.
4. Kūlike me nā kūlana hana: Ke kumu kūʻai kaulike a me ka lōʻihi (haʻahaʻa-nui: HSS; kiʻekiʻe-nui: DLC) a hoʻokō i nā koi kūpono / hoʻokō.
5. Hoʻololi i nā hiʻohiʻona: E hoʻokahua i nā lāʻau lapaʻau ma waho (ʻaʻole hiki ke ʻino) no ka hana ma ka pūnaewele, a e hoʻohana i nā lau haiki a maʻalahi no nā ʻoki ʻoki.

Ma ka hahai ʻana i kēia ʻano hana, hiki i nā mea hana, nā ʻaelike, a me nā mea hana ke koho i nā lau ʻike ʻaʻole wale e hāʻawi i ka ʻoki FCB maikaʻi, kiʻekiʻe kiʻekiʻe akā e hōʻoiaʻiʻo i ka hoʻokō ʻana i nā kūlana OSHA a pale i nā limahana mai ka ʻike ʻana i ka lepo silica-e loaʻa i kahi kaulike o ka hana, palekana, a me ka maikaʻi.