Ukuminyana kweTungsten Carbide

I-Tungsten Carbide, eyaziwa ngokuthi amazinyo ezimboni, iwumkhiqizo ojwayelekile owela phansi. Idume ngezakhiwo zayo ezinhle kakhulu ezihlanganisa ubulukhuni obuphezulu, amandla aphezulu, ukuminyana okuphezulu, ukumelana nokugqoka, nokumelana nokugqwala, ukuze, ingenziwa ibe izingcezu zokubhoboza ezihlukahlukene, abasiki, amathuluzi okumba amatshe, amathuluzi okumba, izingxenye zokugqoka, ama-cylinder liners. , njalo njalo. Embonini, sizosebenzisa imingcele eminingi ukuhlola nokuqinisekisa ukuthi imikhiqizo ye-tungsten carbide ingeyekhwalithi ephezulu. Kulesi sihloko, isici esiyisisekelo somzimba, ukuminyana, kuzokhulunywa ngaso.

Kuyini ukuminyana?

Ukuminyana kuyinkomba ebalulekile yempahla ewumshini ukukhombisa isisindo se-carbide enosimende ngevolumu yeyunithi. Umthamo esiwushilo lapha, uhlanganisa umthamo wama-pores kundaba. Ngokohlelo lwamazwe ngamazwe lwamayunithi namayunithi okulinganisa asemthethweni ase-China, ukuminyana kumelelwa uphawu ρ, futhi iyunithi yokuminyana ingu-kg/m3.

Ubuningi be-tungsten carbide

Ngaphansi kwenqubo efanayo yokukhiqiza kanye nemingcele efanayo, ukuminyana kwe-carbide enosimende kuzoshintsha ngokushintsha kokwakheka kwamakhemikhali noma ukulungiswa kwesilinganiso sempahla eluhlaza.

Izingxenye eziyinhloko zochungechunge lwe-YG lwama-carbides ayi-tungsten carbide powder kanye ne-cobalt powder. Ngaphansi kwezimo ezithile, njengoba okuqukethwe kwe-cobalt kukhula, ukuminyana kwe-alloy kuyancipha, kodwa uma inani elibalulekile lifinyelelwa, ububanzi bokuguquguquka kokuminyana buncane. Ukuminyana kwe-YG6 alloy ngu-14.5-14.9g/cm3, ukuminyana kwe-YG15 alloy ngu-13.9-14.2g/cm3, kanti ukuminyana kwe-YG20 alloy ngu-13.4-13.7g/cm3.

Izingxenye eziyinhloko zochungechunge lwe-YT lwe-carbide enosimende yi-tungsten carbide powder, i-titanium carbide powder, ne-cobalt powder. Ngaphansi kwezimo ezithile, njengoba okuqukethwe kwe-titanium carbide powder kwanda, ukuminyana kwe-alloy kuyancipha. YT5 ingxubevange ukuminyana 12.5-13.2g/cm3, YT14 ingxubevange ukuminyana 11.2-12.0g/cm3, YT15 ingxubevange ukuminyana 11.0-11.7g/cm3

Izingxenye eziyinhloko ze-YW series carbide enosimende yi-tungsten carbide powder, i-titanium carbide powder, i-tantalum carbide powder, i-niobium carbide powder, ne-cobalt powder. Ukuminyana kwengxubevange ye-YW1 ngu-12.6-13.5g/cm3, ukuminyana kwe-YW2 ingxubevange ngu-12.4-13.5g/cm3, kanti ukuminyana kwe-YW3 alloy ngu-12.4-13.3g/cm3.

Ngenxa yokuminyana kwayo okuphezulu, i-carbide enosimende ingenziwa ibe yimikhiqizo ehlukahlukene, efana nezinsimbi zemishini, izinsimbi zokulinganisa ezisetshenziswa ezimbonini zokumba ezifana nowoyela, ama-pendulum wewashi, ama-ballast okuthutha ngomkhumbi, ukuhamba ngomkhumbi, njll. Ama-Counterweights, ama-counterweights endiza, njll. ,  okungaqinisekisa ibhalansi yezinto ezisesimweni esisebenzayo noma esimile, noma konga kakhulu umsebenzi wabasebenzi.

Izici ze-tungsten carbide density

Ukuminyana kuhlobene nokwakheka kwezinto, isilinganiso sempahla eluhlaza, i-microstructure, inqubo yokukhiqiza, imingcele yenqubo, nezinye izici. Ngokuvamile, izinkambu zokufaka isicelo zama-carbides anosimende anobunzima obuhlukene nazo zihlukile. Okulandelayo kwethula ngokuyinhloko izici ezinomthelela wokuminyana kwe-alloy.

1. Ukwakheka kwezinto

I-carbide enosimende ingakhiwa izimpushana ezimbili, i-tungsten carbide powder (i-WC powder) ne-cobalt powder (Co powder), noma izimpushana ezintathu: i-WC powder, i-TiC powder (i-titanium carbide powder) ne-Co powder, noma i-WC powder. Impushana, i-TiC powder, i-TaC powder (i-tantalum carbide powder), i-NbC powder (i-niobium carbide powder), ne-Co powder. Ngenxa yokwakheka okuhlukene kwezinto zengxubevange, ukuminyana kwengxubevange kuhlukile, kodwa izigaba ziyefana: ukuminyana kwengxubevange ye-YG6 ngu-14.5-14.9g/cm³, ukuminyana kwengxubevange ye-YT5 ngu-12.5-13.2g/ cm³, futhi ukuminyana kwengxubevange ye-YW1 kungu-12.6-13.5g/cm³.

Ngokuvamile, ukuminyana kwe-tungsten-cobalt (YG) kwe-carbide enosimende kuyanda ngokwanda kokuqukethwe kwempuphu ye-WC. Isibonelo, ukuminyana kwe-alloy ene-WC powder content ka-94% (YG6 alloy) yi-14.5-14.9g/cm³, kanye ne-WC powder content Ukuminyana kwe-85% alloy (YG15 alloy)ingu-13.9-14.2g/cm³.

Ubuningi be-tungsten-titanium-cobalt (YT) ama-alloys aqinile ayancipha ngokunyuka kokuqukethwe kwe-TiC powder. Isibonelo, ukuminyana kwama-alloys ane-TiC powder content ka-5% (YT5 alloy) yi-12.5-13.2g/cm³, kanti i-TiC powder content ingu-15%. Ukuminyana kwengxubevange (YT15 alloy) ngu-11.0-11.7g/cm³.

2. Isakhiwo esincane

I-porosity ibangelwa ikakhulukazi ama-pores kanye nokuncipha futhi iyinkomba ebalulekile yokwahlulela ikhwalithi ye-carbide enosimende. Izizathu eziyinhloko zokwakhiwa kwama-pores e-carbide e-cemented zifaka ukushisa ngokweqile, ukufakwa kwezinto eziphilayo, ukufakwa kwensimbi, izakhiwo zokucindezela ezimbi, kanye nama-ejenti okubumba angalingani.

Ngenxa yokuba khona kwama-pores, ukuminyana kwangempela kwe-alloy kungaphansi kokuminyana kwethiyori. Ama-pores amakhulu noma ngaphezulu, i-alloy encane encane kakhulu inesisindo esinikeziwe.

3. Inqubo yokukhiqiza

Inqubo yokukhiqiza ihlanganisa inqubo ye-powder metallurgy kanye nobuchwepheshe bokubumba umjovo. Amaphutha afana nokungcwatshwa kwe-carburizing, ukushiswa kancane, ukungcolisa, ukubhubhudla, ukuxebuka, nokungaminyene ngesikhathi sokucindezela nokucwilisa kuzoholela ekwehleni kokuminyana kwe-carbide enosimende.

4. Indawo yokusebenza

Ngokuvamile, ngokushintsha kwezinga lokushisa noma ingcindezi, umthamo noma ukuminyana kwe-alloy nakho kuzoshintsha ngokufanayo, kodwa ushintsho luncane futhi lunganakwa.

Uma unentshisekelo ngemikhiqizo ye-tungsten carbide futhi ufuna imininingwane eyengeziwe nemininingwane, ungasithinta.