Zida za carbide zokhala ndi simenti zimatsogola pazida zamakina za CNC. M'maiko ena, zida zopitilira 90% ndi zida zopitilira 55% zimapangidwa ndi carbide yomangidwa. Kuphatikiza apo, carbide yokhala ndi simenti imagwiritsidwa ntchito popanga zida wamba monga kubowola ndi ocheka kumaso. Kugwiritsiridwa ntchito kwa simenti ya carbide kukuchulukirachulukira mu zida zovuta monga ma reamers, mphero, zodula zapakati ndi zazikulu modulus zida zomangira malo olimba a mano, ndi ma broaches. Kudula kwa zida za carbide zokhala ndi simenti ndi 5 mpaka 8 kuposa zida zazitsulo zothamanga kwambiri (HSS). Kuchuluka kwazitsulo zomwe zimachotsedwa pagawo lililonse la tungsten ndizochulukirapo kasanu kuposa HSS. Chifukwa chake, kugwiritsa ntchito kwambiri simenti ya carbide ngati chida ndi njira imodzi yothandiza kwambiri yogwiritsira ntchito chuma moyenera, kupititsa patsogolo zokolola, ndikuwonjezera phindu pazachuma.
Kugawika kwa Cemented Carbide Tool Equipment
Kutengera kapangidwe kake kakang'ono, carbide yopangidwa ndi simenti imatha kugawidwa kukhala tungsten carbide-based cemented carbide ndi titanium carbonitride (Ti(C,N)) -yopangidwa ndi simenti ya carbide, monga tawonera mu Gulu 3-1.
Tungsten carbide-based simenti carbide imaphatikizapo:
Tungsten-cobalt (YG)
Tungsten-cobalt-titaniyamu (YT)
Ndi ma carbides osowa (YW)
Mtundu uliwonse uli ndi ubwino wake ndi zovuta zake. Ma carbide owonjezera akuphatikizapo tungsten carbide (WC), titanium carbide (TiC), tantalum carbide (TaC), niobium carbide (NbC), ndi zina zotero, ndi cobalt (Co) kukhala gawo lomwe limagwiritsidwa ntchito kwambiri.
Titanium carbonitride-based cemented carbide makamaka imakhala ndi TiC (ena okhala ndi ma carbides kapena nitrides owonjezera), okhala ndi molybdenum (Mo) ndi faifi tambala (Ni) monga magawo omwe amagwiritsidwa ntchito kwambiri zitsulo.
Kutengera ndi kukula kwa tirigu, carbide ya simenti imatha kugawidwa m'magulu awiri:
Carbide wamba wopangidwa ndi simenti
Carbide yopangidwa bwino ndi simenti
Carbide yokhala ndi simenti ya Ultrafine-grained
Malinga ndi GB/T 2075—2007, zilembo za zilembozi ndi motere:
HW: Carbide yopanda simenti yokhala ndi tungsten carbide (WC) yokhala ndi njere ≥1μm
HF: Carbide yopanda simenti yokhala ndi tungsten carbide (WC) yokhala ndi njere yochepera <1μm
HT: Carbide yosakanizidwa yokhala ndi titanium carbide (TiC) kapena titanium nitride (TiN) kapena zonse (zomwe zimadziwikanso kuti cermet)
HC: Ma carbides omwe tawatchulawa omwe ali ndi zokutira
International Organisation for Standardization (ISO) imayika ma carbides opangidwa ndi simenti m'magulu atatu:
K kalasi (K10 mpaka K40):
Zofanana ndi kalasi ya YG yaku China (makamaka yopangidwa ndi WC-Co)
P kalasi (P01 mpaka P50):
Zofanana ndi kalasi ya YT yaku China (makamaka yopangidwa ndi WC-TiC-Co)
M kalasi (M10 mpaka M40):
Zofanana ndi kalasi ya YW yaku China (makamaka yopangidwa ndi WC-TiC-TaC(NbC)-Co)
Gulu lirilonse la sukulu likuimiridwa ndi nambala pakati pa 01 ndi 50, kusonyeza mndandanda wa aloyi kuchokera kuuma kwambiri mpaka kuuma kwakukulu, chifukwa chosankhidwa m'njira zosiyanasiyana zodula ndi zinthu za Machining kwa zipangizo zosiyanasiyana zogwirira ntchito. Ngati n'koyenera, code yapakatikati ikhoza kuikidwa pakati pa zizindikiro ziwiri zoyandikana, monga P15 pakati pa P10 ndi P20, kapena K25 pakati pa K20 ndi K30, koma osaposa imodzi. Muzochitika zapadera, nambala ya P01 ikhoza kugawidwanso powonjezera chiwerengero china cholekanitsidwa ndi mfundo ya decimal, monga P01.1, P01.2, etc., kuti apitirize kusiyanitsa kukana kuvala ndi kulimba kwa zipangizo zomaliza ntchito.
Kuchita kwa Cemented Carbide Tool Equipment
1. HardnessCemented carbide imakhala ndi zinthu zambiri zolimba (monga WC, TiC), zomwe zimapangitsa kuti kuuma kwake kukhale kokwera kwambiri kuposa zitsulo zothamanga kwambiri. Kulimba kwa carbide ya simenti kumakwera, kumapangitsa kuti asavale bwino, zomwe nthawi zambiri zimakhala zapamwamba kuposa zitsulo zothamanga kwambiri.
Kukwera kwa gawo la cobalt binder, kumachepetsa kuuma kwa alloy.
Popeza TiC ndi yolimba kuposa WC, ma aloyi a WC-TiC-Co ali ndi kuuma kwakukulu kuposa ma aloyi a WC-Co. Zambiri za TiC, zimakulitsa kuuma kwake.
Kuonjezera TaC ku WC-Co alloys kumawonjezera kuuma ndi pafupifupi 40 mpaka 100 HV; kuwonjezera NbC kumawonjezera ndi 70 mpaka 150 HV.
2. Mphamvu Mphamvu yosunthika ya carbide yokhala ndi simenti ndi pafupifupi 1/3 mpaka 1/2 ya zida zachitsulo zothamanga kwambiri.
Kukwera kwa cobalt, kumapangitsanso mphamvu ya alloy.
Ma alloys okhala ndi TiC ali ndi mphamvu zochepa kuposa omwe alibe TiC; Kuchuluka kwa TiC, kumachepetsa mphamvu.
Kuonjezera TaC ku WC-TiC-Co cemented carbide kumawonjezera mphamvu yake yosunthika ndipo kumawonjezera kwambiri kukana kwapang'onopang'ono ndikusweka. Pamene zinthu za TaC zikuchulukirachulukira, mphamvu za kutopa zimakulanso.
Mphamvu yopondereza ya carbide yopangidwa ndi simenti ndi 30% mpaka 50% kuposa yachitsulo chothamanga kwambiri.
3. KulimbaKulimba kwa simenti ya carbide ndikotsika kwambiri kuposa chitsulo chothamanga kwambiri.
Ma aloyi omwe ali ndi TiC amakhala olimba kwambiri kuposa omwe alibe TiC; pamene zinthu za TiC zikuwonjezeka, kulimba kumachepa.
Mu ma aloyi a WC-TiC-Co, kuwonjezera kuchuluka koyenera kwa TaC kumatha kukulitsa kulimba ndi pafupifupi 10% ndikusunga kukana kutentha komanso kukana kuvala.
Chifukwa cha kulimba kwake kochepa, carbide yopangidwa ndi simenti siyenera kukhala ndi zinthu zomwe zimakhudzidwa kwambiri kapena kugwedezeka, makamaka pama liwiro otsika pomwe kumamatira ndi kupukuta kumakhala koopsa.
4. Thermal Physical PropertiesThermal conductivity of cemented carbide ndi pafupifupi 2 mpaka 3 nthawi zambiri kuposa zitsulo zothamanga kwambiri.
Popeza matenthedwe a TiC ndi otsika kuposa a WC, ma aloyi a WC-TiC-Co ali ndi matenthedwe otsika kuposa ma aloyi a WC-Co. Kuchuluka kwa TiC kumapangitsa kuti matenthedwe asamayende bwino.
5. Kukaniza Kutentha Cemented carbide imakhala ndi kutentha kwapamwamba kwambiri kuposa chitsulo chothamanga kwambiri ndipo imatha kupanga kudula pa 800 mpaka 1000 ° C ndi kukana bwino kwa pulasitiki kusinthika pa kutentha kwakukulu.
Kuwonjezera TiC kumawonjezera kuuma kwa kutentha kwambiri. Popeza kutentha kofewa kwa TiC ndikokwera kuposa ma WC, kuuma kwa ma aloyi a WC-TiC-Co kumachepa pang'onopang'ono ndi kutentha kuposa ma aloyi a WC-Co. TiC yochulukirapo komanso cobalt yocheperako, imachepetsa kuchepa.
Kuonjezera TaC kapena NbC (yokhala ndi kutentha kwakukulu kuposa TiC) kumawonjezera kuuma kwa kutentha ndi mphamvu.
6. Anti-Adhesion PropertiesKutentha komatira kwa carbide yopangidwa ndi simenti ndikwapamwamba kuposa chitsulo chothamanga kwambiri, kumapangitsa kukana kuvala kumamatira.
Kutentha kwa Cobalt ndi chitsulo ndikotsika kwambiri kuposa WC; pamene cobalt ikuwonjezeka, kutentha kwa adhesion kumachepa.
Kutentha kwa TiC ndikokwera kuposa kwa WC, kotero ma aloyi a WC-TiC-Co amakhala ndi kutentha kwapamwamba kwambiri (pafupifupi 100 ° C kumtunda) kuposa ma aloyi a WC-Co. TiO2 kupangidwa pa kutentha pa kudula amachepetsa adhesion.
TaC ndi NbC ali ndi kutentha kwapamwamba kwambiri kuposa TiC, kumapangitsa kuti anti-adhesion properties. Kugwirizana kwa TaC ndi zida zogwirira ntchito ndi gawo laling'ono chabe la magawo khumi a WC.
7. Kukhazikika kwa ChemicalKudziwikiratu kwa zida za simenti za carbide kumalumikizidwa kwambiri ndi kukhazikika kwawo kwakuthupi ndi kwamankhwala pakutentha kogwira ntchito.
Kutentha kwa okosijeni wa carbide simenti ndipamwamba kuposa chitsulo chothamanga kwambiri.
Kutentha kwa okosijeni kwa TiC ndikokwera kwambiri kuposa ma WC, kotero ma aloyi a WC-TiC-Co amalemera pang'ono oxidation pa kutentha kwakukulu kuposa ma aloyi a WC-Co; Kuchuluka kwa TiC, kumapangitsanso kukana kwa okosijeni.
Kutentha kwa okosijeni wa TaC nakonso ndikokwera kwambiri kuposa ma WC, ndipo ma aloyi okhala ndi TaC ndi NbC athandizira kukana kutentha kwambiri kwa okosijeni. Komabe, kuchuluka kwa cobalt kumapangitsa kuti oxidation ikhale yosavuta.
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Chengduhuaxin Carbide ndiyodziwika bwino pamsika chifukwa chodzipereka pakuchita bwino komanso luso. Masamba awo a tungsten carbide carpet ndi tungsten carbide slotted blades amapangidwira kuti azigwira bwino ntchito, kupatsa ogwiritsa ntchito zida zomwe zimapereka mabala oyera, olondola pomwe akupirira zovuta zakugwiritsa ntchito kwambiri mafakitale. Poyang'ana kukhazikika komanso kuchita bwino, masamba otsetsereka a Chengduhuaxin Carbide amapereka yankho labwino kumafakitale omwe amafunikira zida zodulira zodalirika.
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Mafunso odziwika kwamakasitomala ndi mayankho a Huaxin
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Nthawi yotumiza: Jul-23-2025
