Kugadzira maitiro uye kuumba maitiro ecemented carbide rod

Thesimende tsvimbo ye carbidendiyo simende ye carbide round rod, inozivikanwawo se tungsten simbi tsvimbo, muchidimbu, tungsten simbi yakatenderera tsvimbo kana simende nhengo ye carbide tsvimbo. Cemented carbide chinhu chakaumbwa chakagadzirwa neakareruka simbi komisheni (yakaoma chikamu) uye yakasungwa simbi (bonding chikamu) inogadzirwa nehupfu simbi. Tungsten carbide inozivikanwawo se tungsten simbi, zvichiri kutaura, ndiro zita renzvimbo yezvakasiyana.

Pane nzira mbiri dzekugadzira dzekugadzira simende dzakatenderedza matanda e carbide: imwe ndeye extrusion molding, uye extrusion molding inzira yakakodzera yekugadzira tsvimbo refu. Inogona kuderedzwa kune chero hurefu hunodiwa nemushandisi panguva yeextrusion process. Zvisinei, kureba kwese hakugoni kudarika 350mm. Imwe yacho ndeye die molding, inova nzira yakakodzera kugadzira short bar material. Sezvinoratidzwa nezita racho, iyo carbide poda inotsikirirwa kuita chimiro neforoma. Iyo yakaoma komisheni uye simbi dzakasungwa dzakagadzirwa nesimbi dzinoramba hadzina kuchinjika patembiricha ye500 ° C kuburikidza nehupfu metallurgy process, uye ichine kuomarara kwakanyanya pa1000 ° C. Tungsten carbide inoshandiswa zvakanyanya mukuora uye nhevedzano yezvinhu zvakanakisa, kunyanya kuoma kwayo uye kusapfeka, kunyangwe mumidziyo yemidziyo, senge maturusi ekutenderedza, maturusi ekugaya, maturusi ekucheka, zvibooreso, mapanga, nezvimwewo, anoshandiswa kucheka simbi yakakandwa, isiri-ferrous simbi, mapurasitiki, kemikari fiber, graphite, girazi, dombo nesimbi yakajairika. Inogona zvakare kushandiswa kucheka chigayo, kuomesa kabati, Z musanganisi, pelletizing muchina) -- kudzvanya (nepadivi pressure hydraulic press kana extrusion press) -- kupisa simbi inodzivirira kupisa, simbi isina tsvina, yakakwira manganese simbi, simbi yechishandiso uye zvimwe zvinhu zvakaoma kunyorova (degreasing choto, choto chakabatanidzwa kana HIP yakaderera dhizaini).

Iyo mbishi ivhu rakanyorova, yakaomeswa, yakavhenganiswa nenamo mushure mekufananidza, yobva yaomeswa kuburikidza nemold horo kana extruded yekuzorodza yekushushikana, uye pakupedzisira inoumbwa ne degreasing uye sintering kuti iite yekupedzisira alloy gross dhayamita raundi bhaa zvinhu. Kudzvanya migumo miviri kunoparadza zvimwe zvinhu. Iyo yakareba kureba kwetungsten carbide diki dhayamita yakatenderedza tsvimbo zvinhu, iyo yakashata yeextrusion kugadzirwa kwezvinhu zvakatenderedza tsvimbo ndeyekuti kutenderera kwekugadzira kwakareba. Extrude 3mm pazasi cylindrical kugaya kuti uvandudze mutsara wekukuvadzwa kwemvere. Ehe, matambudziko ekururama uye kutenderera anogona kuvandudzwa necylindrical kugaya mune inotevera nhanho.

Imwe yacho inogadzira mold, inova nzira yekugadzira tsvimbo pfupi, sekureva kunoita zita, mold inotsikirira simende carbide poda kuti iumbe. Zvakanakira iyi simende carbide bar molding nzira: imwe yacho inogona kuumbwa panguva, inova nzira yepfupi bar kugadzirwa. Sezvinoratidzwa nezita racho, iri kuumba, kuderedza tsvina. Rerutsa nzira yekucheka mutsara uye chengetedza iyo yakaoma zvinhu kutenderera kweiyo extrusion nzira. Iyo iri pamusoro yakapfupikiswa nguva inogona kuchengetedza 7-10 mazuva kune vatengi.

Kunyatsotaura, isostatic kudzvanya zvakare kufa kuumba. Isostatic kudzvanya ndiyo yakanyanya kunaka nzira yekugadzira yekugadzira yakakura uye yakareba simende carbide kutenderera tsvimbo. Kuburikidza nechisimbiso chepamusoro nechepazasi chepiston, pombi yekumanikidza inopinza mvura yepakati pakati peiyo high pressure cylinder uye yekumanikidza rabha, kuburikidza nepressure rubber inotamisa simba rehoro kugadzira iyo simende carbide poda pressure molding.