Nhoroondo yemapumburu

Rongedza zvakasiyana-siyana uye kugadzira maitiro nekufambira mberi kweiyo metallurgical tekinoroji uye shanduko yesimbi yekutenderedza michina uye kuenderera mberi kwekusimudzira.Pakati pezana ramakore rechi 18, Britain yakava nounyanzvi hwokugadzira michina yesimbi yakatonhorwa yokukungurutsira ndiro, uye muhafu yechipiri yezana ramakore rechi 19, kufambira mberi kwounyanzvi hwokugadzira simbi kuEurope kwaida kukungurutswa kwematani makuru eingots. uye kusimba kwegiriy cast iron kana kuti chilled cast iron rolls hakwaigona kuzadzisa zvinodiwa.Iyo kabhoni yemukati ye0.4% kusvika 0.6% yakajairwa simbi rolls yakazvarwa zvinoenderana.Kubuda kwemichina inorema yekufogisa kuti iwedzere kuvandudza kuomarara kwefoge rolls echinyorwa ichi.kushandiswa kwealloying elements uye kuiswa kwekupisa kupisa mukutanga kwezana remakore rechi20 kwakavandudza zvakanyanya kusimba kwekupfeka uye kuoma kwekukanda uye kuumbwa kwesimbi inopisa rolls uye inotonhora rolls.Kuwedzerwa kwe molybdenum kukanda simbi rolls kune inopisa yakamonerwa pepa uye tambo yakavandudza kunaka kwepamusoro pezvinhu zvakakungurutswa.Kudururwa kwemusanganiswa nenzira yekugezesa kunonatsiridza zvakanyanya simba repakati reakakanda rolls.

Rongedza muhuwandu hukuru hwezvinhu zvealloying mushure meHondo Yenyika Yechipiri, inova mhedzisiro yekutenderedza michina yakananga yakakura-yakakura, inoenderera, yakakwira-kumhanya, kusimudzira otomatiki, pamwe nekukungurutsa simba rezvinhu, deformation kuramba kuwedzera roll kuita. zvinodiwa.Munguva iyi, semi-steel rolls uye ductile iron rolls yakaonekwa, uye hupfutungsten carbide rollsdzakabudirira kuvandudzwa mushure memakore ekuma1960.centrifugal casting tekinoroji uye yekusiyanisa kupisa tekinoroji yekurapa tekinoroji yakasimudzirwa zvakanyanya muJapan neEurope mukutanga 1970s, iyo yakavandudza zvakanyanya kuita kwese kwese kwestrip rolls.Composite high-chromium cast iron rolls yakashandiswawo zvinobudirira mumagiyo anopisa.Munguva imwecheteyo, simbi chena yakaumbwa uye semi-simbi rolls yakashandiswa muJapan.80s Europe uye kuunzwa kweakakwira chromium simbi rolls uye yakadzika-yakadzika yakaomeswa layer yeinotonhora rolls uye yakakosha alloy cast iron rolls yezvikamu zvidiki uye waya yekupedzisa.Kuvandudzwa kwechizvino-zvino simbi rolling tekinoroji kwakatungamira mukugadzirwa kwepamusoro pekuita rolls.Kushandiswa kwecentrifugal casting uye nzira nyowani dzakaumbwa senge inoenderera ichikandira composite nzira (CPC nzira), jet deposition nzira (Osprey nzira), electroslag welding nzira uye inopisa isostatic yekutsikirira nzira kuburitsa musimboti wekusimba kwakanaka kwesimbi yakagadzirwa kana ductile iron, iyo yekunze yekumusoro-yekumhanya simbi yakatevedzana yeanosanganiswa rolls uye simbi ceramic rolls yakashandiswa muEurope, Japan, chizvarwa chitsva cheprofile, waya tsvimbo, mill mill.

China yakatanga kugadzira mabhechi ekukanda mabhechi kubva kuma1930, asi kwaive nemhando shoma shoma.nyanzvi yekutangatungsten carbide rollchirimwa chakavambwa muXingtai, Hebei mukupera kwema1950s.muna 1958, Anshan Iron and Steel Company yakaita muyedzo wekutanga wepasi rose uye yakashandisa hombe ductile iron rolls for 1050 primary rolling.muma 1960s, mipumburu inotonhora uye mipumburu huru yesimbi yakagadzirwa zvinobudirira.mukupera kwema1970, Taiyuan Iron neSimbi Kambani uye Mukupera kwema70's, Taiyuan Iron neSimbi Kambani neBeijing Iron neSimbi Research Institute vakabatana vakagadzira centrifugal cast iron rolls yechoto coil rolling mill uye inopisa inoenderera mberi Broadband simbi rolling unit, uye Xingtai Metallurgical Machinery Roll Co uye mamwe marudzi matsva.Pakazosvika ma1990, kugadzirwa kwegwaro reChina kwave kuzadzisa zvinodiwa mudzimba uye pamwe nekutengeswa kunze kwenyika, asi mhando dzinofanirwa kuwedzerwa uye mhando inofanirwa kuvandudzwa.