Maitiro Ekugadzirisazve Tungsten Carbide

Tungsten carbide (WC) ikemikari ibhinari musanganiswa wetungsten uye kabhoni muyeshiyo ye stoichiometric ye93.87% tungsten uye 6.13% kabhoni. Nekudaro, mumaindasitiri izwi rinowanzoreva semented tungsten carbides; sintered powdered metallurgical product inosanganisira tsanga dzakanyatsonaka dze pure tungsten carbide yakasungwa kana kusungirirwa pamwechete mu cobalt matrix. Saizi ye tungsten carbide tsanga dzinobva pa½ kusvika kugumi mamicrons. Iyo cobalt yemukati inogona kusiyana kubva pa3 kusvika 30%, asi inowanzobva pa5 kusvika 14%. Saizi yezviyo uye zvemukati zvecobalt zvinosarudza mashandisirwo kana kupera kushandiswa kwechigadzirwa chakapedzwa.

Cemented carbide ndechimwe chesimbi dzakakosha, tungsten carbide zvigadzirwa zvinonyanya kushandiswa kugadzira uye kugadzira maturusi, madhiri, mabrasives, rock bits, anofa, rolls, ordnance uye kupfeka pamusoro pezvinhu. Tungsten carbide inoita basa rakakosha mukusimudzira indasitiri. Isu tese tinoziva kuti tungsten imhando yezvinhu zvisingadzokerike. Aya hunhu anoita tungsten carbide scrap imwe yeakanakisa anokwikwidza pakudzokorodza.

Nzira yekudzokorora sei tungsten kubva kune tungsten carbide? Kune nzira nhatu muChina.

Parizvino, kune mhando nhatu dzesamende yekudzokorodza uye nzira dzekuvandudza dzinowanzoshandiswa munyika, inzira yekunyungudutsa zinc, electro-dissolution method, uye mechanical pulverization method.

1. Zinc yekunyungudika nzira:

Nzira yekunyungudusa zinc ndeyekuwedzera zingi patembiricha ye900 °C kuti iite zinc-cobalt alloy pakati pecobalt ne zinc mumarara simende carbide. Pane imwe tembiricha, zingi inobviswa nevacuum distillation kuti igadzire chipanji-yakafanana nealloy block uye yobva yapwanywa, yopwanywa, yoitwa poda. Pakupedzisira, zvigadzirwa zve simende zve carbide zvinogadzirwa zvinoenderana neyakajairwa maitiro. Nekudaro, iyi nzira ine hombe yemidziyo yekudyara, mutengo wekugadzira wakakwira, uye kushandiswa kwesimba, uye zvakaoma kubvisa zvachose zingi, zvichikonzera kusagadzikana kwechigadzirwa chemhando (kuita). Mukuwedzera, iyo yakashandiswa dispersant zinc inokuvadza kumuviri wemunhu. Panewo dambudziko rekusvibiswa kwezvakatipoteredza uchishandisa nzira iyi.

2. Disolution nzira:

Iyo electro-dissolution nzira ndeye kushandisa yakakodzera leaching agent yekunyungudutsa binder simbi cobalt mumarara cemented carbide mune leaching mhinduro pasi pechiito chemunda wemagetsi uye wozogadzira kemikari kuita cobalt hupfu, iyo inozonyungudika. Zvimedu zvidhinha zvebhainda zvinocheneswa.

Mushure mekupwanya nekukuya, tungsten carbide poda inowanikwa, uye pakupedzisira, chigadzirwa chitsva chakasimwa carbide chinogadzirwa zvinoenderana neyakajairwa maitiro. Kunyange zvazvo nzira iyi iine hunhu hwehupfu hwehupfu hwakanaka uye husina kuchena hwakaderera, ine zvayakaipira kuyerera kwenguva refu, yakaoma electrolysis midziyo, uye kushomeka kwekugadzirisa tungsten-cobalt tsvina inoiswa simende carbide ine cobalt inodarika 8%.

3. Traditional mechanical kupwanya nzira:

Iyo yechinyakare mechanical pulverization nzira isanganiswa yemanyorero uye mechani pulverization, uye tsvina yakasimwa carbide iyo yakapwanyiwa nemaoko inoiswa mumadziro emukati ine simende ye carbide lining plate uye crusher ine hombe-saizi simende carbide mabhora. Iyo inopwanyiwa kuita upfu nekukunguruka uye (kukungurutsira) kukanganisa, uye yobva yanyorova-ivhu kuita musanganiswa, uye pakupedzisira inogadzirwa mune simende zvigadzirwa zve carbide zvinoenderana neyakajairwa maitiro. Iyi nzira yemhando inotsanangurwa muchinyorwa "Kudzokorodza, Kudzokorodza, uye Kushandiswa kweWaste Cemented Carbide". Kunyangwe iyi nzira ine zvakanakira nzira pfupi uye kushoma kwemidziyo yekudyara, zviri nyore kusanganisa kumwe kusvibiswa mune izvo zvinhu, uye iyo okisijeni yemukati yezvakasanganiswa zvinhu yakakwira, iyo inokanganisa zvakanyanya kunaka kwezvigadzirwa zvealloy, uye haigone kusangana nezvinodiwa zvemaitiro ekugadzira, uye yagara iri Pamusoro pezvo, iko kudzvanya kwakanaka kwakadzikira zvakanyanya, uye kazhinji zvinotora maawa angangoita mazana mashanu ekukunguruka nekukuya, uye kazhinji zvinonetsa kuwana hunyoro hunodiwa. Naizvozvo, nzira yekurapa yekuzvarwa patsva haina kufarirwa uye kushandiswa.

Kana iwe uchida kudzidza zvakawanda nezve abrasive blasting, unogamuchirwa kutibata nesu kuti uwane rumwe ruzivoion.