Zvichienderana nechinhu chinovhara pamusoro,mavharuvhu egedhiinogona kukamurwa kuita mhando mbiri: chisimbiso chakaoma uye chisimbiso chakapfava. Ndeupi musiyano uripo pakati pevharuvhu yechisimbiso chakapfava nevharuvhu yechisimbiso chakaoma:
Vharuvhu yegedhi rechisimbiso chakaoma: Zvinhu zvechisimbiso zviri pamusoro pese pese zvechisimbiso zvinhu zvesimbi, zvinonzi "chisimbiso chakaoma". Kudzivirira kupisa kwakanyanya, kuramba kupfeka, hunhu hwakanaka hwemakanika senge: simbi + simbi; simbi + mhangura; simbi
+ Graphite; simbi + simbi yesimbi. Zvinhu zvinonyanya kushandiswa zvekuvhara simbi ndeizvi: 13Cr simbi isina ngura, 13Cr simbi yesimbi yakaoma, tungsten carbide yakapfapfaidzwa, nezvimwewo. Nzvimbo yekuvhara simbi haina kuvharwa zvakanaka.
Vharuvhu yegedhi rechisimbiso chakapfava: chisimbiso chakagadzirwa nezvinhu zvesimbi kune rumwe rutivi uye zvinhu zvisiri zvesimbi zvinonamira kune rumwe rutivi, izvo zvinonzi "chisimbiso chakapfava". Kushanda kwechisimbiso kwerudzi urwu rwechisimbiso kwakanaka, asi hachipikiswi nekupisa kwakanyanya, chiri nyore kupfeka, uye chine hunhu husina kunaka hwemakanika. Zvakadai se: simbi + rabha; simbi + PTFE, nezvimwewo. Zvinoreva kuti rumwe rutivi rwechisimbiso chakagadzirwa nezvinhu zvine kuoma kwakaderera. Kazhinji, chigaro chechisimbiso chakapfava chakagadzirwa nezvinhu zvisiri zvesimbi zvine simba rakati, kuoma uye kuramba kupisa. Chine kugona kwakanaka kwechisimbiso uye chinogona kusabuda, asi chinogara kwenguva refu. Kana chichienzaniswa nekusagona kuchinjwa nekupisa, chisimbiso chakasimba chakagadzirwa nesimbi, uye kushanda kwechisimbiso kwakaderera, kunyangwe vamwe vagadziri vachiti chinogona kusabuda. Chinangwa chekugadzirwa kwevharuvhu repagedhi rekusimbisa rakapfava: kugadzirisa dambudziko rechigaro chevharuvhu uye pamusoro pechisimbiso chevharuvhu chiri kuita ngura kana kukanganisika, vharuvhu rinogona kutsiva otomatiki chifukidziro chakasimba chekumanikidza uye kuenzana kwegadhi rekusimbisa rakapfava nevharuvhu rekusimbisa rakapfava, uye kugadzirisa dambudziko rezvinhu zvakapfava zvechisimbiso zviri kukuvara nekukweshana. Dambudziko repamusoro pechisimbiso, nekuti chisimbiso chevharuvhu repagedhi chinogona kutsiviwa, zvichiwedzera kushandiswa kwevharuvhu.
Mhando inoshanda yevharuvhu yegedhi rakapfava: dhayamita (p50-p400mm, kumanikidzwa 2.5-4.0MPa, mvura dzakasiyana-siyana dzekupisa kwakajairika dziri pasi pe200℃).
Chisimbiso chakapfava hachigone kusangana nezvinodiwa zveimwe zvinhu zvinoparadza, uye chisimbiso chakaoma chinogona kuchigadzirisa!
Mhando mbiri idzi dzezvisimbiso dzinogona kuenderana. Panyaya yekusimba, chisimbiso chakapfava chakanaka, asi ikozvino kusimba kwechisimbiso chakaoma kunogonawo kusangana nezvinodiwa zvinoenderana! Kubatsira kwechisimbiso chakapfava kushanda zvakanaka kwechisimbiso, asi chakaipa ndechekuti chiri nyore kukwegura, kupfeka, uye chine hupenyu hupfupi hwebasa. Chisimbiso chakasimba chine hupenyu hurefu hwebasa, asi kusimba kwacho kwakaipa kupfuura kwechisimbiso chakapfava.