Ta yaya ake samar da waya tungsten?

Gyara tungsten daga tama ba za a iya yin ta ta hanyar narkewa na gargajiya ba tunda tungsten yana da mafi girman narkawar kowane ƙarfe. Ana fitar da Tungsten daga ma'adinai ta hanyar sinadarai masu yawa. Daidaitaccen tsari ya bambanta ta hanyar masana'anta da abun da ke ciki, amma ana murƙushe ma'adanai sannan a gasa su da/ko aika ta nau'ikan halayen sinadarai, hazo, da wanki don samun ammonium paratungstate (APT). Ana iya siyar da APT ta kasuwanci ko a kara sarrafa shi zuwa tungsten oxide. Tungsten oxide za a iya gasa shi a cikin yanayin hydrogen don ƙirƙirar tungsten foda mai tsabta tare da ruwa a matsayin samfurin. Tungsten foda shine wurin farawa don samfuran niƙa na tungsten, gami da waya.

Yanzu da muke da tungsten foda, ta yaya za mu yi waya?

1. Dannawa

Tungsten foda ana sifted da gauraye. Ana iya ƙara abin ɗaure. Ana auna ƙayyadaddun adadin da aka ɗora a cikin wani ƙarfe na ƙarfe wanda aka ɗora a cikin latsawa. An haɗa foda a cikin haɗin gwiwa, duk da haka maras ƙarfi. Ana cire ƙurar kuma an cire sandar. Hoto a nan.

2. Gabatarwa

Ana sanya sandar mara ƙarfi a cikin wani jirgin ruwa mai jujjuyawar ƙarfe kuma an loda shi cikin tanderun da ke da yanayin hydrogen. Babban zafin jiki ya fara ƙarfafa kayan tare. Material shine kusan 60% - 70% na cikakken yawa, tare da ƙaramin ko babu ci gaban hatsi.

3. Cikakken Sintering

Ana loda mashaya a cikin kwalbar magani na musamman mai sanyaya ruwa. Za a wuce wutar lantarki ta mashaya. Zafin da wannan halin yanzu ya haifar zai sa mashaya ta yi nisa zuwa kusan 85% zuwa 95% na cikakken yawa kuma ta ragu da kashi 15% ko makamancin haka. Bugu da ƙari, lu'ulu'u na tungsten sun fara samuwa a cikin mashaya.

4. Canjawa

Tungsten mashaya yanzu yana da ƙarfi, amma yana da ƙarfi sosai a yanayin zafi. Za a iya sanya shi ya fi sauƙi ta hanyar ɗaga zafinsa zuwa tsakanin 1200 ° C zuwa 1500 ° C. A wannan zafin jiki, ana iya wuce mashaya ta hanyar swager. Swager wata na'ura ce da ke rage diamita na sanda ta hanyar wucewa ta cikin mutun da aka kera don guduma sandar a kusan bugu 10,000 a cikin minti daya. Yawanci swager zai rage diamita da kusan 12% kowace fasfo. Swaging yana haɓaka lu'ulu'u, ƙirƙirar tsarin fibrous. Ko da yake wannan yana da kyawawa a cikin ƙãre samfurin ga ductility da kuma ƙarfi, a wannan lokaci da sanda dole ne a rage danniya-reheating. Swaging yana ci gaba har sai sanda ya kasance tsakanin .25 da .10 inci.

5. Zane

Za a iya zana waya mai kusan inci 10 a yanzu ta hanyar mutuwa don rage diamita. Ana shafa mai kuma ana zana waya ta mutun na tungsten carbide ko lu'u-lu'u. Matsakaicin raguwa a diamita ya dogara da ainihin sinadarai da amfani na ƙarshe na waya. Yayin da aka zana waya, zaruruwa suna sake yin tsawo kuma ƙarfin juni yana ƙaruwa. A wasu matakai, yana iya zama dole a cire wayar don ba da damar ƙarin aiki. Ana iya zana waya mai kyau kamar .0005 inci a diamita.