Semunhu anomiririra anowanzo shandiswa simende carbide, tungsten cobalt simende carbide (YG mhando yecemented carbide) inoreva alloy inoumbwa ne tungsten carbide sechikamu chakaoma uye cobalt sechikamu chakasimwa, zita rechirungu rinonzi tungsten cobalt cemented carbide, uye zita rechiratidzo rinoumbwa neYG uye chikamu cheavhareji cobalt zvemukati.Iro zita remhando rine "YG" uye muzana yeavhareji cobalt zvemukati, seYG6, YG8 zvichingodaro.
Panyaya yekushanda, YG cemented carbide inosanganisa zvakanakira tungsten carbide uye cobalt, izvo zvinonyanya kuratidzwa mukuomarara kwepamusoro, yakanaka yekupisa conductivity, yakanaka kukanganisa kuoma, yakakwirira flexural simba uye yakanakisa kucheka kuramba.Nekudaro, zvinofanirwa kucherechedzwa kuti ma index emuviri emagiredhi akasiyana eYG cemented carbide akasiyana, senge density yeYG6 iri 14.6 ~ 15.0g/cm3, kuoma 89.5HRA, flexural simba 1400MPa, kukanganisa kusimba 2.6J/cm2, kumanikidza 9.6 ~ 12.8KA/m, compressive simba 4600MPa;kuwanda kweYG8 ndeye 14.5 ~ 14.9g/cm3;kuwanda kweYG8 ndeye 14.5 ~ 14.9g/cm3;uye kuwanda kweYG8 i14.5 ~ 14.9g/cm3.YG8 ine density ye14.5 ~ 14.9g/cm3, kuomarara kwe89HRA, kuchinjika kwesimba kwe1500MPa, kuomarara kwe2.5J/cm2, kumanikidza kwe11.2~12.8KA/m, uye simba rekumanikidza re4600MPa.Kazhinji, nekuwedzera kweiyo cobalt yemukati mune imwe mamiriro, iyo alloy's flexural uye compressive masimba uye kuoma kuri nani, nepo density uye kuoma kuri kuderera.
Kupfeka kuramba uye kuoma kweiyo YG yemhando yecemented carbide inowanzoita miviri inopokana, iyo inonyanya kuratidzwa mune zvinotevera: mune mamwe mamiriro, nekuwedzera kwecobalt yemukati kana kudzikira kwe tungsten yemukati, kuoma kweiyo alloy. zviri nani uye kupfeka kuramba kuri murombo;pane zvinopesana, nekuwedzera kwe tungsten zvinyorwa kana kuderera kwekobalt zvinyorwa, iyo abrasive pfuma yealloy iri nani uye kuoma kwacho kunowedzera.Kuti ugadzirise dambudziko rekupokana kwekupfeka kusagadzikana uye kuoma kweYG-type cemented carbide, muongorori wePatent No. CN1234894C inopa nzira itsva yekugadzira, zvakanakira iyi tekinoroji yekugadzira ndeye: 1) Nekuda kweiyo isiri-uniform chimiro che WC zviyo, kurongeka kwecemented carbide inovandudzwa (WC yezviyo yakatarisana yakaderedzwa, Co phase kugovera yakawedzera yunifomu, porosity inodzikira, uye kuputika masosi kwakadzikira zvakanyanya), saka kusapfeka uye kusimba kweiyo alloy iri nani pane iyo zvakafanana cobalt coarser-grained alloys;2) Kushandiswa kwehupfu hwecobalt hupfu huri nani pane kushandiswa kwehupfu hwecobalt (2-3μm), uye kuoma kweiyo alloy kunowedzerwa ne5 kusvika ku10%, nepo kuwedzerwa kwe (0.3-0.6wt%) TaC inowedzera. kuoma kwayo (HRA) ne0.2 kusvika 0.3, kureva kusapfeka kwayo kunowedzerwawo.~ 10%, uye mushure mekuwedzera (0.3-0.6wt%) TaC, kuoma kwayo (HRA) kunowedzerwa ne 0.2-0.3, kureva kuti kupfeka kwayo kunowedzerwawo.
Kubva pakuona kwemhando, maererano neyakasiyana-siyana yecobalt, tungsten-cobalt simende carbide inogona kukamurwa kuva yakaderera-cobalt, medium-cobalt uye high-cobalt alloys;maererano nemhando dzakasiyana dzetungsten carbide, inogona kugoverwa kuva micro-grain, fine-grain, medium-grain uye coarse-grain alloys;maererano nekushandiswa kwakasiyana-siyana, inogona kukamurwa kuva maturusi ekucheka, maturusi emigodhi uye maturusi anoramba kupfeka.
Kubva pakuona kwemaitiro ekugadzira, matanho ekugadzirira eYG simende carbide anosanganisira tungsten carbide poda uye cobalt poda kuburikidza nebhachi, kunyorova, kuomesa, granulation, kudzvanya nekugadzira, de-forming agent, sintering zvichingodaro.Ongorora: Mhando mbiri dzehupfu uye dzakatsetseka zvidimbu zveWC poda dzinoshandiswa kubhachura, umo saizi yehupfu hwakakora WC hupfu huri (20-30) μm, uye saizi yehupfu hwakatsetseka WC ndeye (1.2-1.8) μm.
Kubva pakuona kwekushandisa, tungsten uye cobalt cemented carbide inogona kushandiswa kucheka simbi yakakandwa, isina-ferrous simbi uye isiri-simbi zvinhu, mukuwedzera mukugadzirwa kwemidziyo yemupendero, kudhirowa mold, inotonhora yekurova molds, nozzles, rolls, sando dzepamusoro uye mamwe maturusi asingapfeki uye maturusi emigodhi.
Nguva yekutumira: Jul-21-2023