Cemented carbide, se "mazino eindasitiri", chinhu chakakosha pamidziyo yemazuva ano. Kushandiswa kwaro kuri kuwedzera kupararira, uye kuri kufarirwa zvakanyanya munzvimbo dzakawanda dzakadai semafuta negesi, migodhi yemarasha, kudzora mvura, michina yekuvaka, aerospace uye zvichingodaro. Saka, sei kushandisa zviwanikwa zvishoma kuvandudza kushanda zvakanaka? Izvi zvinoda kuvandudza kushanda kwecemented carbide kuvandudza hupenyu hwebasa uye kushanda zvakanaka.

1.Kuvandudza kunaka kwezvinhu zvakasvibiswa.

A.Kuvandudza kuchena kwezvinhu zvakasvibiswa

Zvinotendwa kuti kuteedzera zvinhu zvakaita seNa, Li, B, F, Al, P, K uye zvimwe zvinoteedzera zvinhu zvine zviri pazasi 200PPm zvine madhigirii akasiyana ekuderedza, carbonization uye sintering ye simende carbide yeN poda, Uye. mhedzisiro pazvivakwa uye chimiro cheiyo alloy inofanirwawo kudzidza.Semuenzaniso, alloys ane simba rakawanda uye kusimba kwakanyanya (senge migodhi alloys uye maturusi ekugaya) ane zvakanyanya zvinodikanwa, uku kuenderera kuchekwa kwechishandiso alloys ine yakaderera mhedzisiro mutoro asi yakakwirira. machining kururama hakudi yakakwirira mbishi zvinhu kuchena.

B.Dzora saizi yechidimbu uye kugovera kwezvakagadzirwa

Dzivisa zvimedu zvakakura mucarbide kana cobalt poda mbishi zvinhu, uye kudzivirira kuumbwa kweiyo coarse carbide tsanga nemadziva ecobalt kana alloy yakanyungudika.

Panguva imwecheteyo, saizi yechidimbu uye saizi yemhando yezvigadzirwa zvinodzorwa kuzadzisa zvinodiwa zvezvigadzirwa zvakasiyana. Semuyenzaniso, maturusi ekucheka anofanirwa kushandisa tungsten carbide poda ine Fisher particle size isingasviki 2 microns, maturusi asingapfeki anofanirwa kushandisa 2-3 microns tungsten carbide poda, uye maturusi emugodhi anofanirwa kushandisa tungsten carbide poda yakakura kudarika 3 microns.

2. Kuvandudza microstructure yealloy.

Ultrafine Grain Alloy

Saizi yegorosi ye carbide isingasviki 1μm, uye inogona kuve nekuoma kwakanyanya uye kuoma panguva imwe chete.

Heterogeneous Structural Alloys

Heterogeneous chimiro alloy yakasarudzika akasiyana ecemented carbide ine isina kuenzana microstructure kana kuumbwa, iyo inogadzirwa nekusanganisa maviri marudzi emusanganiswa ane akasiyana zvikamu kana akasiyana particle saizi. Iyo inowanzo ine kuomarara kwepamusoro-yakaomeswa-grained alloys uye yakakwira kupfeka kuramba kweakanaka-grained alloys, kana zvese zviri zviviri kuomarara kwepamusoro cobalt alloys uye yakakwirira kupfeka kuramba kweyakaderera cobalt alloys.

Superstructural Alloys

Kuburikidza neakakosha maitiro ekugadzira, chimiro cheiyo alloy inoumbwa neinomisikidzwa anisotropic tungsten carbide single crystal flake matunhu akabatanidzwa necobalt-rakapfuma simbi tsinga. Iyi alloy ine yakatanhamara yekupfeka kuramba uye yakanyanya kusimba yakasimba kana yakadzokororwa kudzokororwa kuvhunduka.

Gradient Alloy

Alloys ane gradient shanduko mukuumbwa anotungamira kune gradient shanduko mukuoma uye kuoma.

3. Kuvandudza kana sarudza chikamu chitsva chakaoma uye chikamu chekubatanidza.

4. Musoro wekuomesa kurapa.

Gadzirisa kupokana pakati pekupfeka kuramba uye kuoma, kuoma uye kusimba kwe simende carbide.

Coating:Deposit dhizaini yeTiC kana TiN pamusoro peiyo yakaoma alloy nekusimba kuri nani nenzira dzemuviri kana kemikari kuti uwedzere kusakara kweiyo alloy.

Parizvino, kukurumidza kusimudzira kweboronizing, nitriding, uye electric spark deposition ndiyo yakavharwa simende carbide.

5. Kuwedzera zvinhu kana makemikari.

6. Kupisa kurapwa kwecemented carbide.