He maha ngā āhuatanga pai o te maitai tungsten (tungsten carbide) pērā i te pakeketanga teitei, te ātete ki te kakahu, te kaha me te pakari pai, te ātete ki te wera me te waikura, inā koa tōna pakeketanga teitei me te ātete ki te kakahu, ahakoa i te pāmahana o te 500 ℃. Kāore i rerekē te āhua, ā, he pakeketanga teitei tonu i te 1000 °C.

Ingoa Hainamana: maitai tungsten

Ingoa ke：Ingoa Ingoakē Carbide Cemented

Ngā Āhuatanga: He pakari teitei, he ātete ki te kakahu, he kaha me te pakari pai

Hua: Tokotoko porowhita, pereti maitai tungsten

Kupu Whakataki:

Ko te maitai tungsten, e mōhiotia ana ko te carbide simented, e pā ana ki tētahi rauemi hiato kua whakatōkia kei roto i te iti rawa kotahi te carbide whakarewa. Ko te carbide tungsten, te carbide cobalt, te carbide niobium, te carbide titanium, me te carbide tantalum ngā wāhanga noa o te maitai tungsten. Ko te rahi o te kōhao o te wāhanga carbide (te wāhanga rānei) kei waenganui i te 0.2-10 microns, ā, ka herea ngā kōhao carbide mā te whakamahi i tētahi here whakarewa. Ko te here e pā ana ki te cobalt whakarewa (Co), engari mō ētahi whakamahinga motuhake, ka taea hoki te whakamahi i te nickel (Ni), te rino (Fe), ētahi atu konganuku me ngā koranu rānei. Ko te huinga hanganga o te carbide me te wāhanga here hei whakatau ka kiia he "taumata".

Ko te whakarōpūtanga o te maitai tungsten e whakahaerehia ana i runga i ngā paerewa ISO. Ko tēnei whakarōpūtanga e hangai ana ki te momo rauemi o te mea mahi (pēnei i ngā tohu P, M, K, N, S, H). Ko te hanganga wāhanga here e whakamahia ana mō tōna kaha me tōna ātete ki te waikura.

E rua ngā wāhanga o te hanganga maitai tungsten: ko tētahi wāhanga ko te wāhanga whakapakeke; ko tētahi wāhanga ko te konganuku hono. Ko ngā konganuku here he konganuku rōpū rino te nuinga, e whakamahia whānuitia ana ko te cobalt me ​​te nickel. Nō reira, kei reira ngā koranu tungsten-cobalt, ngā koranu tungsten-nickel me ngā koranu tungsten-titanium-cobalt.

Mō ngā maitai kei roto te tungsten, pērā i te maitai tere-rahi me ētahi maitai wera-mahi, ka taea e te nui o te tungsten i roto i te maitai te whakapai ake i te pakeke me te ātete wera o te maitai, engari ka tino heke te pakari.

Ko te whakamahinga matua o ngā rauemi tungsten ko te carbide sima, arā, te maitai tungsten. Ko te carbide, e mōhiotia ana ko ngā niho o te ahumahi hou, e whakamahia whānuitia ana i roto i ngā hua maitai tungsten.

Hanganga o ngā kai

Te tukanga whakatā:

Ko te whakahinuhinu o te maitai tungsten he pēhi i te paura ki roto i te pereki, kātahi ka tomo ki te oumu whakahinuhinu ki te whakamahana ki tētahi pāmahana (pāmahana whakahinuhinu), ka pupuri mō tētahi wā (wā pupuri), kātahi ka whakamatao kia whiwhi ai i te rauemi maitai tungsten me ngā āhuatanga e hiahiatia ana.

E whā ngā wāhanga matua o te tukanga sintering maitai tungsten:

1. I te wāhanga o te tango i te kaihanga me te whakatō i mua i te whakatō, ka pāngia te tinana whakatō e ngā huringa e whai ake nei i tēnei wāhanga:

Mā te tango i te matū whakapūkara, ka piki ake te pāmahana i te wāhanga tuatahi o te whakapūkara, ka memeha haere, ka mimiti haere rānei te matū whakapūkara, ā, ka tangohia atu te tinana whakapūkara. He rerekē te momo, te rahinga me te tukanga whakapūkara.

Ka whakaitihia ngā waikura i runga i te mata o te paura. I te pāmahana whakapūkara, ka taea e te hauwai te whakaiti i ngā waikura o te cobalt me ​​te tungsten. Mena ka tangohia te kaihanga i roto i te korehau me te whakapūkara, kāore e kaha te tauhohenga waro-hāora. Ka āta tangohia te ahotea whakapā i waenga i ngā matūriki paura, ka tīmata te whakaora me te whakakōhatu anō i te paura konganuku honohono, ka tīmata te horapa o te mata, ā, ka pai ake te kaha o te whakapūkara.

2. Wāhanga whakapūkara totoka (800℃——pāmahana eutectic)

I te pāmahana i mua i te putanga mai o te wāhanga wai, hei tāpiri atu ki te haere tonu i te tukanga o te wāhanga o mua, ka kaha ake te tauhohenga me te horapa o te wāhanga totoka, ka whakarei ake te rere o te kirihou, ā, ka tino mimiti te tinana kua whakatōngia.

3. Wāhanga whakapūtanga wai (pāmahana eutectic – pāmahana whakapūtanga)

Ina puta te āhua wai i roto i te tinana kua whakakāhia, ka tere te whakaoti i te whakahekenga, ā, ka whai ake ko te whakawhiti tioata hei hanga i te hanganga taketake me te hanganga o te koranu.

4. Wāhanga whakamatao (pāmahana whakawera – pāmahana rūma)

I tēnei wā, kua rerekē te hanganga me te hanganga āhua o te maitai tungsten me ngā āhuatanga whakamatao rerekē. Ka taea te whakamahi i tēnei āhuatanga hei whakamahana i te maitai tungsten hei whakapai ake i ōna āhuatanga ā-tinana me ā-pūkaha.

Whakataki tono

Nō te kāpira sima te maitai tungsten, e mōhiotia ana ko te koranu tungsten-titanium. Ka taea te pakeke ki te 89~95HRA. Nā tēnei, he uaua te mau i ngā hua maitai tungsten (ngā mataaratanga maitai tungsten noa), he mārō, kāore e wehi i te werawera, engari he pakarukaru.

Ko ngā wāhanga matua o te karāhe sima ko te karāhe tungsten me te konukōre, e 99% o ngā wāhanga katoa, ā, 1% he konganuku kē atu, nō reira e kiia ana hoki ko te maitai tungsten.

He mea whakamahi noa i roto i te miihini tino tika, i ngā rauemi taputapu tino tika, i ngā mīhini huri, i ngā mata wiri pānga, i ngā mata tapahi karāhe, i ngā taputapu tapahi tāera, he mārō, kāore e wehi i te whakamahana, engari he pakarukaru. Nō te konganuku onge.

He maha ngā āhuatanga pai o te maitai tungsten (tungsten carbide) pērā i te pakeketanga teitei, te ātete ki te kakahu, te kaha me te pakari pai, te ātete ki te wera me te ātete ki te waikura, inā koa tōna pakeketanga teitei me te ātete ki te kakahu, ahakoa i te pāmahana o te 500 ℃. Kāore i rerekē te āhua, ā, he pakeke tonu i te 1000 °C. He whānuitia te whakamahinga o te carbide hei rauemi, pērā i ngā taputapu hurihuri, ngā taputapu mira, ngā mīhini parai, ngā wiri, ngā taputapu keri, me ētahi atu, mō te tapahi i te rino maka, ngā konganuku kore-ferrous, ngā kirihou, ngā muka matū, te graphite, te karāhe, te kōhatu me te maitai noa, ā, ka taea hoki te whakamahi mō te tapahi i te maitai ātete. Ko ngā rauemi uaua ki te mīhini pērā i te maitai wera, te maitai kore waikura, te maitai manganese teitei, te maitai taputapu, me ētahi atu. Ko te tere tapahi o te carbide sima hou he rau ngā wā i te maitai waro.

Ka taea hoki te whakamahi i te maitai tungsten (tungsten carbide) hei hanga i ngā taputapu keri toka, i ngā taputapu keri, i ngā taputapu keri, i ngā taputapu ine, i ngā wāhanga ātete-kakahu, i ngā mea whakakoi whakarewa, i ngā arai rango, i ngā peera tika, i ngā pūwero, me ētahi atu.

Te whakataurite i ngā momo maitai tungsten: S1, S2, S3, S4, S5, S25, M1, M2, H3, H2, H1, G1 G2 G5 G6 G7 D30 D40 K05 K10 K20 YG3X YG3 YG4C YG6 YG8 YG10 YG12 YL10.2 YL60 YG15 YG20 YG25 YG28YT5 YT14 YT15 P10 P20 M10 M20 M30 M40 V10 V20 V30 V40 Z01 Z10 Z20 Z30

He nui ngā taonga o te maitai tungsten, ngā maripi carbide sima, me ngā momo whakaritenga paerewa carbide tungsten, ā, kei te wātea mai ngā mea kore e hiahiatia ana.

Raupapa rauemi

Ko ngā hua matua o ngā rauemi raupapa maitai tungsten ko: te pae porowhita, te pepa maitai tungsten, te rīpene maitai tungsten, me ētahi atu.

Rauemi pokepokea ai

Ngā mate ahu whakamua maitai tungsten, ngā mate tuhi maitai tungsten, ngā mate tuhi maitai tungsten, ngā mate tuhi waea maitai tungsten, ngā mate whakaputa wera maitai tungsten, ngā mate tā matao maitai tungsten, ngā mate whakapūmau maitai tungsten, ngā mate pane matao maitai tungsten, me ētahi atu.

Ngā hua keri

Ko ngā hua matua ko: ngā niho keri rori maitai tungsten/ngā niho keri rori, ngā mata pū maitai tungsten, ngā mata wiri maitai tungsten, ngā mata wiri maitai tungsten, ngā mata wiri maitai tungsten DTH, ngā mata wiri maitai tungsten roera koni, ngā niho tapahi waro maitai tungsten, ngā niho mata kōhao maitai tungsten, me ētahi atu.

Rauemi ātete-mau

Mowhiti hiri maitai tungsten, rauemi ātete-mau maitai tungsten, rauemi pūwero maitai tungsten, rauemi reri arataki maitai tungsten, pūwero maitai tungsten, rauemi miro mīhini huri maitai tungsten, me ētahi atu.

Rauemi maitai tungsten

Ko te ingoa mātauranga o te rauemi maitai tungsten ko te kōtaha maitai tungsten, ko ngā hua matua ko: te pae porowhita maitai tungsten, te rīpene maitai tungsten, te kōpae maitai tungsten, te pepa maitai tungsten, me ētahi atu.