Yadda ake Maimaita Tungsten Carbide

Tungsten carbide (WC) sinadari ne na binary fili na tungsten da carbon a cikin rabon stoichiometric na 93.87% tungsten da 6.13% carbon. Koyaya, a masana'antu kalmar yawanci tana nufin simintin tungsten carbide; wani sinteed foda mai ƙarfe samfurin wanda ya ƙunshi ƙwaya masu kyau na tsantsar tungsten carbide mai ɗaure ko siminti tare a cikin matrix cobalt. Girman hatsin carbide tungsten ya bambanta daga ½ zuwa 10 microns. Abubuwan da ke cikin cobalt na iya bambanta daga 3 zuwa 30%, amma yawanci zai kasance daga 5 zuwa 14%. Girman hatsi da abun ciki na cobalt sun ƙayyade aikace-aikace ko ƙarshen amfani da abin da aka gama.

Carbide da aka yi da siminti ɗaya ne daga cikin ƙarfe mafi mahimmanci, samfuran tungsten carbide galibi ana amfani da su don yin yankan da ƙirƙirar kayan aikin, drills, abrasives, raƙuman dutse, mutu, rolls, ƙaya da kuma sa kayan sama. Tungsten carbide yana taka muhimmiyar rawa a ci gaban masana'antu. Dukanmu mun san cewa tungsten wani nau'in abu ne wanda ba a sabunta shi ba. Waɗannan halayen sun sa tungsten carbide scrap ɗaya daga cikin mafi kyawun masu fafutuka don sake amfani da su.

Yadda za a sake sarrafa tungsten daga tungsten carbide? Akwai hanyoyi guda uku a kasar Sin.

A halin yanzu, akwai nau'o'in siminti guda uku na sake yin amfani da carbide da hanyoyin sake haɓakawa da aka saba amfani da su a duniya, hanya ce ta narkewar zinc, hanyar narkewar lantarki, da hanyar juzu'a.

1. Hanyar narkewar Zinc:

Hanyar narkewar zinc ita ce ƙara zinc a zafin jiki na 900 ° C don samar da sinadarin zinc-cobalt tsakanin cobalt da zinc a cikin simintin siminti na sharar gida. A wani yanayin zafi, ana cire zinc ɗin ta hanyar distillation don samar da toshe mai kama da soso sannan a niƙa, a baɗe, a niƙa a cikin ɗanyen foda. A ƙarshe, an shirya samfuran carbide da aka yi da siminti bisa ga tsarin al'ada. Duk da haka, wannan hanya tana da babban zuba jari na kayan aiki, yawan farashin samarwa, da kuma amfani da makamashi, kuma yana da wuya a cire zinc gaba daya, wanda ya haifar da ingancin samfurin (aiki). Bugu da kari, zinc mai rarraba da aka yi amfani da shi yana cutar da jikin mutum. Akwai kuma matsalar gurbatar muhalli ta amfani da wannan hanya.

2. Hanyar warwarewa:

Hanyar narkar da lantarki shine a yi amfani da madaidaicin leaching don narkar da cobalt karfen da ke cikin sharar simintin carbide a cikin maganin leaching karkashin aikin wutar lantarki sannan a sarrafa shi ta hanyar sinadarai zuwa cobalt foda, sannan za a narkar da shi. An tsabtace tubalan gami na mai ɗaure.

Bayan murkushewa da niƙa, ana samun foda na tungsten carbide, kuma a ƙarshe, an yi sabon samfurin simintin carbide bisa ga tsarin al'ada. Ko da yake wannan hanya tana da halaye na ingancin foda mai kyau da ƙarancin ƙazanta, yana da lahani na kwararar tsari mai tsawo, kayan aikin lantarki masu rikitarwa, da iyakanceccen aiki na tungsten-cobalt sharar gida cemented carbide tare da cobalt abun ciki fiye da 8%.

3. Hanyar murkushe injinan gargajiya:

Hanyar juzu'a ta gargajiya ita ce haɗin hannu da na'ura, kuma sharar simintin carbide da aka tarwatsa da hannu ana saka shi a bangon ciki tare da farantin simintin siminti da kuma injin murkushe manyan ƙwallan siminti mai girma. Ana murƙushe shi a cikin foda ta hanyar mirgina da (birgima) tasiri, sa'an nan kuma jika-ƙasa a cikin cakuda, kuma a ƙarshe an sanya shi cikin samfuran siminti na carbide bisa ga tsarin al'ada. An kwatanta irin wannan hanyar a cikin labarin "Sake yin amfani da shi, sabuntawa, da kuma amfani da sharar da aka yi da simintin Carbide". Ko da yake wannan hanya yana da abũbuwan amfãni daga wani gajeren tsari da kuma kasa kayan aiki zuba jari, yana da sauki Mix sauran ƙazanta a cikin kayan, da kuma oxygen abun ciki na gauraye abu ne high, wanda yana da tsanani tasiri a kan ingancin gami kayayyakin, da kuma. ba zai iya saduwa da buƙatun ka'idodin samarwa ba, kuma koyaushe yana kasancewa Bugu da ƙari, ƙimar murkushewa yana da ƙasa sosai, kuma gabaɗaya yana ɗaukar kimanin sa'o'i 500 na mirgina da niƙa, kuma galibi yana da wahala a cimma ƙimar da ake buƙata. Sabili da haka, ba a yi amfani da hanyar maganin farfadowa ba kuma ba a yi amfani da shi ba.

Idan kana son ƙarin koyo game da abrasive fashewa, maraba da tuntube mu don ƙarin bayaniion.