Mukucheka simbi, chishandiso chekucheka chakagara chichinzi mazino ekugadzira maindasitiri, uye kucheka kwekucheka kwemidziyo yekucheka chinhu chimwe chezvinhu zvakakosha zvinotaridza kushanda kwayo kwekugadzira, mutengo wekugadzira uye kugadzirisa mhando. Naizvozvo, sarudzo chaiyo yekucheka maturusi emidziyo yakakosha kwakakosha.
Tool material inoreva zvinhu zvechikamu chekucheka chemudziyo.
Kunyanya, kusarudzwa kwakanaka kwezvinhu zvekushandisa kunobata zvinotevera zvinhu:
Kugadzirwa kwemuchina, kusimba kwechishandiso, mashandisirwo emidziyo uye mutengo wekugadzira, kurongeka kwekugadzira uye kunaka kwepamusoro.
Zvinowanzotendwa kuti zvishandiso zvematurusi zvinosanganisira kabhoni mudziyo simbi, alloy chishandiso simbi, yakakwirira-kumhanya simbi, hard alloy, ceramics, cermets, diamond, cubic boron nitride, nezvimwe.
Cermet chinhu chakaumbwa
Cermet
Cermet English word cermet or ceramet inoumbwa neceramic (ceramic) nesimbi (metal). Cermet imhando yezvakasanganiswa zvinhu, uye tsananguro yayo yakasiyana zvishoma munguva dzakasiyana.
(1) Zvimwe zvinotsanangurwa sechinhu chinoumbwa nemarambi nemasimbi, kana kuti chinhu chakaumbwa chedhakarama nesimbi inogadzirwa nehupfu simbi.
IAmerican ASTM Professional Committee inoitsanangura se: a heterogeneous composite material inoumbwa nesimbi kana alloy uye imwe kana anopfuura maceramic phases, iyo yekupedzisira iyo inotora inenge 15% kusvika 85% vhoriyamu chikamu, uye panguva yekugadzirira tembiricha, The solubility pakati pe simbi uye ceramic zvikamu zvishoma.
Zvishandiso zvakagadzirwa nesimbi uye ceramic mbishi zvinhu zvine zvimwe zvakanakira zvese simbi uye ceramics, senge kuoma uye kukotama kuramba kweiyo yekutanga, uye yakakwirira tembiricha kuramba, simba rakawanda uye oxidation kuramba kweyekupedzisira.
(2) Cermet isimbi yakasimwa carbide ine titanium-based hard particles semuviri mukuru. Zita reChirungu rekuti cermet, cermet, musanganiswa wemazwi maviri ekuti ceramic (ceramic) nesimbi (simbi). Ti(C,N) inowedzera kupfeka kuramba kwegiredhi, chikamu chechipiri chakaoma chinowedzera kupokana neplastic deformation, uye iyo cobalt yemukati inodzora kuoma. Cermets inowedzera kupfeka kuramba uye kuderedza tsika yekunamatira kune workpiece kana ichienzaniswa ne sintered carbide.
Kune rumwe rutivi, inewo ine yakaderera compressive simba uye urombo kupisa kwekutya kusagadzikana. Cermets akasiyana neakaomeswa alloys mukuti zvinhu zvawo zvakaoma ndezveiyo WC system. Cermets inonyanya kuumbwa neTi-based carbides uye nitrides, uye inonziwo Ti-based cemented carbides.
Iwo generalized cermets anosanganisirawo refractory compound alloys, hard alloys, uye simbi-yakasungirirwa diamond maturusi emidziyo. Chikamu checeramic mu cermets ndeye oxide kana refractory komisheni ine yakakwira kunyungudika uye kuomarara kwepamusoro, uye chikamu chesimbi chinonyanya kushanduka zvinhu uye alloys avo.
Cermet imhando yezvakasanganiswa zvinhu, uye tsananguro yayo yakasiyana zvishoma munguva dzakasiyana.
Cermets midziyo yekucheka simbi
zvinhu zvakakosha
Cermets ari kuvandudzwa
Zvinowanzotendwa kuti zvishandiso zvematurusi zvinosanganisira kabhoni mudziyo simbi, alloy chishandiso simbi, yakakwirira-kumhanya simbi, simende carbide, cermet, ceramics, diamond, cubic boron nitride, nezvimwe.
Mumakore ekuma1950, maTiC-Mo-Ni cermets akatanga kushandiswa semidziyo yekushandisa yekucheka-kumhanya kwakanyanya kwesimbi.
Pakutanga cermets dzakagadzirwa kubva kuTiC uye nickel. Kunyangwe iine simba repamusoro uye kuomarara kwepamusoro kunofananidzwa necemented carbide, kuoma kwayo kune hurombo.
Mumakore ekuma1970, TiC-TiN-based cermets, nickel-free cermets yakagadzirwa.
Iyi cermet yemazuva ano, ine titanium carbonitride Ti (C, N) zvimedu sechinhu chikuru, chikamu chiduku chechipiri chakaoma chikamu (Ti, Nb, W) (C, N) uye tungsten-cobalt-rich binder, inovandudza simbi. kuoma kwemakeramiki kwakavandudza mashandiro avo ekucheka, uye kubva ipapo macermets ave achiwedzera kushandiswa mukuvandudza zvishandiso.
Nekupisa kwayo kwakanakisa kupikisa, kupfeka kusagadzikana uye kugadzikana kwemakemikari, cermet zvishandiso zvakaratidza zvakanakira zvisingaenzaniswi mumunda wekucheka-kumhanya kwekucheka uye kucheka kwakaoma-kune-machina zvinhu.
Cermet + PVD coating inovandudza kupfeka kuramba
ramangwana
Kushandiswa kwemapanga emacermet muminda yakasiyana-siyana kuri kuwedzera zuva nezuva, uye hapana mubvunzo kuti cermet material industry ichawedzerwa.
Cermets inogona zvakare kuputirwa nePVD yekuvandudza kupfeka kuramba.
Nguva yekutumira: Feb-08-2023
