Gulu ndiStudy paZida Zodulira Carbide Simenti

Gawo loyamba

Chida ndi chida chofunika kwambiri kudula processing, kaya ndi wamba makina chida, kapena patsogolo manambala kulamulira chida chida (NC), Machining pakati (MC) ndi kusintha dongosolo kupanga (FMC), ayenera kudalira chida kumaliza kudula. ndondomeko. Kupanga zida kumakhudza mwachindunji kukonza zokolola ndi kukonza bwino. Zida, kapangidwe ndi geometry ndizinthu zitatu zomwe zimatsimikizira kudulidwa kwa chidacho, momwe magwiridwe antchito amagwirira ntchito.

Monga gawo lofunikira la zida za zida, carbide yomangidwa ndi simenti imagwira ntchito yosasinthika pakudula kwamakono. Cemented carbide ndi kuuma mkulu, refractory zitsulo carbide (WC, TiC, etc.) wa dongosolo micron wa ukulu wa ufa, sintered ndi Co, Mo, Ni ndi mankhwala ena binder ufa zitsulo, amene mkulu kutentha okhutira carbide kuposa mkulu. -Speed ​​​​zitsulo, kutentha kovomerezeka mpaka 800 ~ 1000 ℃, kutentha kwabwino kwa HRC89 ~ 93, 760 ℃ kuuma kwa HRC77 ~ 85, kudula mpaka 100 ~ 300m / min, kuposa chitsulo chothamanga kwambiri, moyo ndi kangapo mpaka maulendo angapo a chitsulo chothamanga kwambiri, koma mphamvu ndi kulimba ndi 1/30 ~ 1/8 yokha yachitsulo chothamanga kwambiri, kulephera kupirira kugwedezeka ndi kukhudzidwa. Tsopano chakhala chimodzi mwa zida zazikulu zida.

International Organisation for Standardization (ISO) imagawa zida zodulira zida m'magulu asanu ndi limodzi:

1. Mtundu P

Wopangidwa ndi WC, Co ndi 5% ~ 30% TiC, yomwe imadziwikanso kuti tungsten titanium cobalt carbide, kalasi ya YT5, YT14, YT15, YT30, yomwe TiC ili ndi 5%, 14%, 15%, 30%, yofananira. Zomwe zili ndi Co ndi 10%, 8%, 6%, 4%, kuuma HRA91.5 ~ 92.5. Tmphamvu yopindika ndi 900 ~ 1400MPa. Zomwe zili mu TiC zidachulukira, zomwe zili mu Co zidachepa, kuuma komanso kukana kuvala kumawonjezeka, koma kulimba kwamphamvu kudachepa kwambiri. Mtundu uwu wa aloyi uli ndi kuuma kwakukulu komanso kukana kuvala, kumamatira bwino komanso kukana kufalikira komanso kukana kwa okosijeni. Koma mphamvu kupinda, akupera ntchito ndi matenthedwe madutsidwe kuchepa, otsika kutentha brittleness, toughness ndi osauka. Oyenera mkulu liwiro kudula zitsulo chuma. Kukwera kwa Co zomwe zili mu alloy, kumapangitsanso mphamvu yopindika komanso kulimba kwamphamvu, koyenera kukhwimitsa. Zomwe zili mu Co zimachepetsedwa, kuuma, kukana kuvala ndi kukana kutentha kumawonjezeka, ndipo ndizoyenera kumaliza. Kugwirizana pakati pa chinthu cha Ti mu alloy ndi chinthu cha Ti muntchito-chidutswaadzatulutsa chodabwitsa kwambiri kumamatira chida chodabwitsa, amene achulukitse chida kuvala pa nkhani ya kutentha kudula ndi lalikulu mikangano chinthu, ndipo si oyenera processing zitsulo zosapanga dzimbiri ndi titaniyamu aloyi.

2. Mtundu K

Wopangidwa ndi WC ndi Co, omwe amadziwikanso kuti tungsten cobalt tungsten carbide, omwe amagwiritsidwa ntchito kwambiri ndi YG6, YG8, YG3X, YG6X, yomwe ili ndi Co ya 6%, 8%, 3%, 6%. Kuuma HRA89 ~ 91.5, kupindika mphamvu 1100 ~ 1500GPa. Kapangidwe kameneka kagawika m’mbewu zouma, zapakatikati ndi mbewu zabwino. Nthawi zambiri (monga YG6, YG8) pamapangidwe ambewu yapakatikati, carbide yabwino (monga YG3X, YG6X) yokhala ndi kuchuluka kofanana kwa Co kuposa kuuma kwambewu,zakekuvala kukana ndi apamwamba pang'ono, kupinda mphamvu ndikulimbandikutsika pang'ono. Mtundu uwu wa kulimba kwa aloyi, akupera, matenthedwe matenthedwe ndi abwino, oyenera pokonza zida zowonongeka..

3. Mtundu M

Pamaziko a WC, TiC ndi Co, TaC (kapena NbC) imawonjezedwa pazolembazo, kuwonjezera TaC(NbC) ku YT imatha kupititsa patsogolo mphamvu yopindika, mphamvu ya kutopa, kulimba kwamphamvu, kuuma kwa kutentha kwambiri, mphamvu ndi kukana kwa okosijeni, kuvala. kukaniza ndi zina zotero. Magiredi omwe amagwiritsidwa ntchito kawirikawiri YW1 ndi YW2. Itha kugwiritsidwa ntchito pokonza chitsulo chosapanga dzimbiri, zitsulo zopanda chitsulo ndi zitsulo, komanso zimatha kukonza aloyi yotentha kwambiri, chitsulo chosapanga dzimbiri ndi zovuta zina.-to-ndondomeko zipangizo.

4. Mtundu H

Amagwiritsidwa ntchito kwambiri podula zida zolimba kwambiri, monga chitsulo cholimba, chitsulo chosungunuka ndi zina zotero. Cubic boron nitride PCBN yalembedwa mu Class H.

5.Mtundu S

Amagwiritsidwa ntchito podula zinthu zosagwira kutentha,super-aloyi, ndi zina.

6.Mtundu H

Amagwiritsidwa ntchito podula zitsulo zopanda chitsulo. Polycrystalline diamondi PCD ikuphatikizidwa m'kalasi N.

M'nkhaniyi, ndatchulapo mitundu isanu ndi umodzi ya carbide yoyimitsidwa mwa kugawa zida zodulira, gawo lotsatira, padzakhala mitundu yatsopano ya carbide yomalizidwa kuti ikwaniritse, chonde don.’t iwalani kuyang'ana theka lotsatira ngati mukufuna.

ZZBETTER imapanga mankhwala a TC / WC omwe ali ndi zaka zoposa 10, funsani ife ngati muli ndi zofunikira zokhudzana ndi tungsten carbide zipangizo kapena zinthu zolimba. Dikirani kufunsa kwanu, ndife odalirika.