Tsarin samarwa da tsarin gyare-gyare na sandar carbide cimented

Thesandar siminti na carbideshi ne sandar zagaye na siminti, wanda kuma aka sani da sandar karfe tungsten, a takaice, sandan zagaye na tungsten karfe ko sandar memba na siminti. Carbide da aka yi da siminti wani abu ne mai haɗe-haɗe da aka yi da mahaɗan ƙarfe mai jujjuyawa (lokaci mai wuya) da ƙarfe mai ɗaure (lokacin haɗin gwiwa) wanda aka samar da ƙarfe na foda. Tungsten carbide kuma an san shi da ƙarfe tungsten, in mun gwada da magana, shine sunan gida na daban.

Akwai hanyoyi guda biyu don samar da siminti na carbide zagaye sanduna: daya shi ne extrusion gyare-gyare, da kuma extrusion gyare-gyaren hanya ce da ta dace don samar da dogayen sanduna. Ana iya yanke shi zuwa kowane tsawon da mai amfani ke so yayin aiwatar da extrusion. Duk da haka, gaba ɗaya tsawon ba zai iya wuce 350mm ba. Sauran shine gyare-gyaren mutu, wanda shine hanya mai dacewa don samar da gajeren kayan mashaya. Kamar yadda sunan ya nuna, ana danna foda na carbide zuwa siffar tare da m. A wuya mahadi da bonded karafa sanya daga refractory karafa ba su canzawa a yanayin zafi na 500 ° C ta hanyar foda karfe tsari, kuma har yanzu suna da babban taurin a 1000 ° C. Tungsten carbide ana amfani da ko'ina a cikin lalata da kuma jerin kyawawan kaddarorin, musamman ma girman taurinsa da juriya, har ma a cikin kayan aikin kayan aiki, kamar kayan aikin juyawa, kayan aikin milling, kayan aikin yankan, drills, wukake, da sauransu, ana amfani da su don yanke ƙarfe, ƙarfe mara ƙarfe, filastik, fiber sunadarai, graphite, gilashi, dutse da ƙarfe na yau da kullun. Hakanan za'a iya amfani dashi don yankan niƙa, katako mai bushewa, mahaɗar Z, injin pelletizing) - latsa (tare da matsa lamba na hydraulic press ko extrusion latsa) - kona ƙarfe mai jure zafi, bakin karfe, ƙarfe mai ƙarfi na manganese, ƙarfe kayan aiki da sauran abubuwa masu wahala rigar niƙa (degreasing tander, hadedde tanderu ko HIP low matsa lamba tanderu).

Danye kayan ana jika ne, busasshe, a haɗe su da manne bayan an daidaita su, sannan a bushe ta cikin ɗakin da aka ƙera ko kuma a fitar da su don magance damuwa, kuma a ƙarshe an samar da su ta hanyar raguwa da ɓacin rai don samar da kayan haɗin gwal na ƙarshe. Tsere ƙarshen biyun zai ɓata wani abu. Tsawon tsayin tungsten carbide ƙananan diamita zagaye na kayan aiki, rashin lahani na samar da extrusion na kayan zagaye shine cewa zagayowar samarwa yana da tsawo. Fitar da 3mm a ƙasa da niƙa na silindi don inganta layin lalacewa na ulu. Tabbas, ana iya inganta matsalolin madaidaiciya da zagaye tare da niƙa cylindrical a mataki na gaba.

Ɗayan kuma ita ce gyaggyarawa, wato hanyar samar da gajeren sanda, kamar yadda sunan ya nuna, ƙwayar za ta danna foda mai siminti don yin. Amfanin wannan hanyar siminti na carbide bar gyare-gyare: ɗayan kuma ana iya ƙera shi a lokaci guda, wanda shine hanyar samar da gajerun mashaya. Kamar yadda sunan ya nuna, yana gyare-gyare, yana rage sharar gida. Sauƙaƙe tsarin yanke layin kuma adana busassun busassun busassun hanyar extrusion. The sama taqaitaccen lokaci zai iya ajiye 7-10 kwanaki ga abokan ciniki.

A taƙaice magana, matsi na isostatic shima yana haifar da mutuwa. Isostatic latsa ita ce hanya mafi dacewa don samar da manyan sandunan siminti masu tsayi da tsayi. Ta hanyar hatimin fistan na sama da na ƙasa, famfo mai matsa lamba zai yi allurar matsakaicin ruwa tsakanin babban silinda mai ƙarfi da roba mai matsa lamba, ta hanyar roba mai matsa lamba zai canja wurin ƙarfin zauren don yin gyare-gyaren gyare-gyaren foda na siminti.