Hoʻokaʻawale a meShaʻawina maMea Paahana Oki Carbide Sima

Mahele ʻekahi

ʻO ka mea hana he mea pono loa i ka ʻoki ʻana, inā he mīkini maʻamau, a i ʻole kahi mea hana mīkini helu helu kiʻekiʻe (NC), machining center (MC) a me ka ʻōnaehana hana maʻalahi (FMC), pono e hilinaʻi i ka mea hana e hoʻopau ai i ka ʻoki. kaʻina hana. ʻO ka hoʻomohala ʻana i nā mea hana he hopena pololei i ka hoʻomaikaʻi ʻana i ka huahana a me ka maikaʻi o ka hana. ʻO nā mea waiwai, ka hoʻolālā a me ka geometry nā kumu ʻekolu e hoʻoholo ai i ka hana ʻoki ʻana o ka mea hana, kahi i hana nui ai ka hana o ka mea hana.

Ma ke ʻano he mea koʻikoʻi o nā mea paahana, ʻo ka carbide cemented ka mea hiki ʻole ke hoʻololi i ka hana ʻoki ʻoki hou. Cemented carbide mea he kiʻekiʻe paakiki, refractory metala carbide (WC, TiC, etc.) o ka micron kauoha o ka magnitude pauda, ​​sintered me Co, Mo, Ni a me nā mea binder pauda metallurgy huahana, o ka kiʻekiʻe wela carbide maʻiʻo ma mua o ka kiʻekiʻe. -ke kila wikiwiki, ka ʻoki ʻana i ka mahana a hiki i 800 ~ 1000 ℃, ka paʻakikī o ka mahana maʻamau o HRC89 ~ 93, 760 ℃ paʻakikī o HRC77 ~ 85, ʻoki wikiwiki a hiki i 100 ~ 300m / min, ʻoi aku ka nui o ke kila kiʻekiʻe, ʻO ke ola he mau manawa i nā manawa he nui o ke kila kiʻekiʻe, akā ʻo ka ikaika a me ka paʻakikī wale nō 1/30 ~ 1/8 o ke kila kiʻekiʻe, ʻaʻohe hiki ke kū i ka haʻalulu a me ka hopena. I kēia manawa ua lilo ia i mea hana nui.

Hoʻokaʻawale ka International Organization for Standardization (ISO) i ka carbide no ka ʻoki ʻana i nā mea hana i ʻeono mau ʻāpana:

1. ʻAno P

Hoʻokumu ʻia me WC, Co a me 5% ~ 30% TiC, i ʻike ʻia ʻo tungsten titanium cobalt carbide, grade YT5, YT14, YT15, YT30, nona ka ʻike TiC he 5%, 14%, 15%, 30%, ka mea pili. He 10%, 8%, 6%, 4%, ka paakiki HRA91.5 ~ 92.5. TʻO ka ikaika wili o 900 ~ 1400MPa. Ua hoʻonui ʻia ka maʻiʻo TiC, ua emi ka maʻi Co, ua piʻi ka paʻakikī a me ke kūpaʻa ʻaʻahu, akā ua emi nui ka paʻakikī o ka hopena. He kiʻekiʻe ka paʻakikī a me ke kūpaʻa ʻana o kēia ʻano alloy, adhesion maikaʻi a me ka diffusion resistance a me ka pale ʻana i ka oxidation. Akā ʻo ka ikaika kulou, ka hana wili a me ka hoʻohaʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa haʻahaʻa, ʻilihune ka paʻakikī. He kūpono no ka ʻoki kiʻekiʻe o ka mea kila. ʻOi aku ka kiʻekiʻe o ka Co content o ka alloy, ʻoi aku ka maikaʻi o ka ikaika kulou a me ka paʻakikī o ka hopena, kūpono no ka roughing. Hoʻemi ʻia ka ʻike Co, hoʻonui ʻia ka paʻakikī, ke kūpaʻa a me ka pale wela, a kūpono ia no ka hoʻopau ʻana. ʻO ka pilina ma waena o ka mea Ti i ka huila a me ka mea Ti i kaʻāpana hanae hoʻopuka i kahi mea paʻa paʻa koʻikoʻi, kahi e hoʻonui ai i ka ʻaʻahu o ka mea hana ma ke ʻano o ka ʻoki ʻana i ka wela kiʻekiʻe a me ke kumu friction nui, a ʻaʻole kūpono ia no ka hana ʻana i ke kila kila a me ka titanium alloy.

2. ʻAno K

Hoʻokumu ʻia o WC a me Co, i ʻike ʻia ʻo tungsten cobalt tungsten carbide, hoʻohana maʻamau i nā māka YG6, YG8, YG3X, YG6X, loaʻa Co o 6%, 8%, 3%, 6%. ʻO ka paʻakikī HRA89 ~ 91.5, ka ikaika kulou 1100 ~ 1500GPa. Hoʻokaʻawale ʻia ke ʻano i ka palaoa coarse, medium grain a me fine grain. ʻO ka mea maʻamau (e like me YG6, YG8) no ka hoʻonohonoho ʻana i ka palaoa waena, ka carbide palaoa maikaʻi (e like me YG3X, YG6X) i loaʻa ka nui like o Co ma mua o ka paʻakikī palaoa waena,konaʻoi aku ka kiʻekiʻe o ka pale ʻana i ka ʻaʻahu, ka ikaika kulou aʻoʻoleʻaheemi iki. ʻO kēia ʻano paʻakikī paʻakikī, wili, thermal conductivity maikaʻi, kūpono no ka hana ʻana i nā mea brittle.

3. ʻAno M

Ma ke kumu o WC, TiC a me Co, ua hoʻohui ʻia ʻo TaC(a i ʻole NbC) i ka haku mele, me ka hoʻohui ʻana i ka TaC (NbC) i ka YT hiki ke hoʻomaikaʻi i kona ikaika kulou, ikaika luhi, paʻakikī hopena, paʻakikī kiʻekiʻe, ikaika a me ka pale ʻana i ka oxidation, ʻaʻahu. kū'ē a pēlā aku. Hoʻohana mau ʻia nā māka YW1 a me YW2. Hiki ke hoʻohana ʻia i ka hana ʻana i ka hao, nā metala non-ferrous a me ke kila, akā hiki ke hana i ka alloy kiʻekiʻe, ke kila kila a me nā mea paʻakikī ʻē aʻe.-to-kaʻina hana.

4. ʻAno H

Hoʻohana nui ʻia no ka ʻoki ʻana i nā mea paʻakikī kiʻekiʻe, e like me ke kila paʻakikī, ka hao hoʻoheheʻe ʻia a pēlā aku. Ua helu ʻia ʻo Cubic boron nitride PCBN ma ka Papa H.

5.ʻAno S

Hoʻohana ʻia no ka ʻoki ʻana i nā mea wela,nā huila nui, etc.

6.ʻAno H

Hoʻohana ʻia no ka ʻoki ʻana i nā metala non-ferrous. Hoʻokomo ʻia ka polycrystalline daimana PCD i ka papa N.

Ma kēia ʻatikala, ua haʻi au i ʻeono ʻano o ka carbide cemented ma ka hoʻokaʻawale ʻana i nā mea hana ʻoki, ʻo ka ʻāpana aʻe, e nui aʻe nā ʻano hou o ka carbide cemented e hoʻopau ai, e ʻoluʻolu mai.’poina e nānā i ka hapalua aʻe inā makemake ʻoe.

Hoʻopuka ʻo ZZBETTER i nā huahana TC / WC me ka ʻoi aku o 10 mau makahiki, e kelepona mai iā mākou inā loaʻa iā ʻoe kekahi koi e pili ana i nā mea tungsten carbide a i ʻole nā ​​​​huahana paʻakikī. E kali i kāu nīnau, hilinaʻi maoli mākou.