Isigama malunga neTungsten Carbide

Ngophuhliso lwetekhnoloji, abantu baleqa izixhobo ezingcono, kunye nezixhobo zokwakha kunye neshishini labo. Ngaphantsi kwesi simo, i-tungsten carbide ithatha indima ebalulekileyo kwishishini lanamhlanje. Kwaye kweli nqaku, isigama esithile malunga ne-tungsten carbide iya kuqaliswa.

1. Ikhabhide enesamente

I-carbide ene-cemented ibhekiselele kwi-composite ene-sintered eyenziwe nge-carbides yentsimbi enqabileyo kunye nezibophelelo zetsimbi. Phakathi kwee-carbides zetsimbi, i-tungsten carbide, i-titanium carbide, i-tantalum carbide, njalo njalo zii-carbides ezisetyenziswa ngoku. Kwaye i-binder yensimbi esetyenziswa kakhulu yi-cobalt powder, kunye nezinye izibophelelo zetsimbi ezifana ne-nickel, kunye nentsimbi, nazo ziya kusetyenziswa ngamanye amaxesha.

2. I-tungsten carbide

I-Tungsten carbide luhlobo lwe-carbide enesamente, ehlanganiswe ne-tungsten carbide powder kunye nezibophelelo zetsimbi. Ngenqanaba eliphezulu lokunyibilika, iimveliso ze-tungsten carbide azikwazi ukuveliswa njengezinye izinto. I-Metallurgy yePowder yindlela eqhelekileyo yokuvelisa iimveliso ze-tungsten carbide. Ngeeathom ze-tungsten kunye neeathom zekhabhoni, iimveliso ze-tungsten carbide zineempawu ezininzi ezintle, zizenza isixhobo esidumileyo kwishishini lanamhlanje.

3. Ukuxinana

Ubuninzi bubhekisa kumlinganiselo wobunzima kumthamo wezinto eziphathekayo. Umthamo wayo uqulethe umthamo we-pores kwizinto eziphathekayo.

Kwiimveliso ze-tungsten carbide, i-cobalt okanye ezinye iincinci zetsimbi zikhona. I-tungsten carbide grade ye-YG8 eqhelekileyo, equlethwe yi-8% ye-cobalt, inobuninzi be-14.8g / cm3. Ngoko ke, njengoko umxholo we-cobalt kwi-tungsten-cobalt alloy inyuka, ukuxinwa ngokubanzi kuya kuncipha.

4. Ukuqina

Ukuqina kubhekisa kwisakhono semathiriyeli ukuxhathisa ukonakala kweplastiki. Ubulukhuni beVickers kunye nokuqina kweRockwell zihlala zisetyenziselwa ukulinganisa ubulukhuni beemveliso ze-tungsten carbide.

Vickers hardness isetyenziswa ngokubanzi kumazwe ngamazwe. Le ndlela yokulinganisa ubulukhuni ibhekisela kwixabiso lobunzima obufunyenwe ngokulinganisa ubungakanani be-indentation ngokusebenzisa idayimani ukungena kumphezulu wesampuli phantsi kwemeko ethile yomthwalo.

Ukuqina kweRockwell yenye indlela yokulinganisa ubulukhuni esetyenziswa ngokuqhelekileyo. Ilinganisa ubulukhuni isebenzisa ubunzulu bokungena kwekhowuni yedayimani eqhelekileyo.

Bobabini indlela yokulinganisa ubulukhuni beVickers kunye nendlela yokulinganisa ubulukhuni be-Rockwell ingasetyenziselwa ukulinganisa ubunzima be-carbide ene-cemented, kwaye ezimbini ziyakwazi ukuguqulwa ngokufanayo.

Ubunzima be-tungsten carbide busuka kwi-85 HRA ukuya kwi-90 HRA. Ibakala eliqhelekileyo le-tungsten carbide, i-YG8, inobunzima be-89.5 HRA. Imveliso ye-tungsten carbide enobunzima obuphezulu inokunyamezela impembelelo kwaye inxibe ngcono, ngoko inokusebenza ixesha elide. Njengebhondi, i-cobalt encinci ibangela ubunzima obungcono. Kwaye i-carbon ephantsi inokwenza i-tungsten carbide ibe nzima. Kodwa i-decarbonization inokwenza i-tungsten carbide ibe lula ukuyonakalisa. Ngokuqhelekileyo, i-tungsten carbide efanelekileyo iya kwandisa ubunzima bayo.

5. Amandla okugoba

Isampuli iphindaphindwe njenge-beam exhaswa ngokulula kwii-fulcrum ezimbini, kwaye umthwalo usetyenziswa kumgca ophakathi wee-fulcrums ezimbini kude kube isampuli ikhefu. Ixabiso elibalwe ngefomula yokuphefumula isetyenziswe ngokuhambelana nomthwalo ofunekayo wokuqhekeka kunye nommandla we-cross-sectional wesampuli. Ikwaziwa njengamandla okugqabhuka okunqamlezayo okanye ukuxhathisa ukugoba.

Kwi-WC-Co tungsten carbide, amandla e-flexural ayanda ngokunyuka komxholo we-cobalt we-alloy ye-tungsten-cobalt, kodwa xa umxholo we-cobalt ufikelela malunga ne-15%, amandla e-flexural afikelela kwixabiso eliphezulu, emva koko aqala ukuhla.

Amandla okugoba alinganiswa ngomndilili wamaxabiso alinganisiweyo amaninzi. Eli xabiso liya kutshintsha kwakhona njengejometri yomfanekiso, imeko yomhlaba, uxinzelelo lwangaphakathi, kunye neziphene zangaphakathi zokutshintsha kwezinto. Ngoko ke, amandla e-flexural ngumlinganiselo wamandla kuphela, kwaye ixabiso lamandla e-flexural alinakusetyenziswanjengesiseko sokhetho lwezinto eziphathekayo.

6. Amandla okugqabhuka okunqamlezayo

Amandla okuqhekeka okunqamlezayo kukukwazi kwe-tungsten carbide ukuxhathisa ukugoba. I-tungsten carbide enamandla angcono aqhekezayo anzima kakhulu ukuyonakalisa phantsi kweempembelelo. I-tungsten carbide ecocekileyo inamandla angcono anqamlezayo. Kwaye xa iinqununu ze-tungsten carbide zisasaza ngokulinganayo, i-transverse ingcono, kwaye i-tungsten carbide ayilula ukuyonakalisa. Amandla okugqabhuka okunqamlezayo kweemveliso ze-YG8 tungsten carbide zijikeleze i-2200 MPa.

7. Amandla okunyanzela

Amandla okunyanzeliswa yintsalela yamandla emagnethi alinganiswa ngokwenza imagnethi imathiriyeli yemagnethi kwikhabhide enesamente ukuya kwimeko egcweleyo emva koko ikhuphe uzibuthe.

Kukho ubudlelwane obuthe ngqo phakathi komlinganiselo we-particle ye-cemented phase carbide kunye nokunyanzeliswa kwamandla. Okona kucothayo ubungakanani bamasuntswana omgangatho wenqanaba lemagnethi, kokukhona liphezulu ixabiso lamandla okunyanzeliswa. Kwilebhu, amandla anyanzeliswayo avavanywa ngumvavanyi wamandla onyanzelekileyo.

Ezi zigama ze-tungsten carbide kunye neempawu zayo. Ezinye izigama ezingakumbi ziya kwaziswa kumanqaku alandelayo.

Ukuba unomdla kwiimveliso ze-tungsten carbide kwaye ufuna ulwazi oluthe kratya kunye neenkcukacha, ungaQHAGAMSHELANA NATHI ngefowuni okanye ngeposi ekhohlo, okanye SITHUMELE MAIL emazantsi ephepha.