Round simbi
Simbi yakatenderera inoreva tambo yakasimba ine denderedzwa remuchinjikwa.Tsanangudzo dzayo dzinoratidzwa muhupamhi, mumamirimita (mm), zvakadai se "50mm" zvinoreva simbi yakatenderera ine dhayamita ye50 mm.
Simbi yakatenderedzwa yakakamurwa kuita mhando nhatu: inopisa yakakungurutswa, yakaumbwa uye inotonhora inokweva.Izvo zvakatemwa zvesimbi inopisa-yakatenderedzwa ndeye 5.5-250 mm.Pakati pavo: 5.5-25 mm simbi duku yakatenderera inonyanya kugoverwa mumasumbu emakumbo akatwasuka, ayo anowanzoshandiswa sesimbi mbariro, mabhoti uye zvikamu zvakasiyana-siyana zvemagetsi;Simbi yakatenderedzwa yakakura kupfuura 25 mm inonyanya kushandiswa kugadzira mekiniki zvikamu uye machubhu asina musono pombi dzesimbi dzakamirira.
Round bar classification
1.Kurongwa nemakemikari
Carbon simbi inogona kupatsanurwa kuita yakaderera kabhoni simbi, yepakati kabhoni simbi uye yakakwira kabhoni simbi zvinoenderana nemakemikari ekuumbwa (kureva, kabhoni yemukati).
(1) Simbi yakapfava
Iyo inozivikanwawo sesimbi yakapfava, iyo kabhoni yemukati inobva 0.10% kusvika 0.30%.Yakaderera kabhoni simbi iri nyore kugashira kwakasiyana siyana kugadzirisa sekuforoma, welding nekucheka, uye inowanzoshandiswa kugadzira cheni, rivets, mabhaudhi, shafts, nezvimwe.
(2) Simbi yepakati kabhoni
Carbon steel ine carbon content ye 0.25% kusvika 0.60%.Kune simbi dzakaurayiwa, semi-kuuraya simbi, simbi inofashaira uye zvimwe zvigadzirwa.Mukuwedzera kune kabhoni, inogonawo kuva nehuwandu hwemanganese (0.70% kusvika 1.20%).Zvinoenderana nemhando yechigadzirwa, yakakamurwa kuita yakajairwa kabhoni structural simbi uye yepamusoro-mhando kabhoni structural simbi.Yakanaka kupisa kwemafuta uye kucheka kuita, kushomeka kwekuita welding.Simba uye kuoma kwakakwirira kudarika yakaderera kabhoni simbi, asi plastiki uye kuoma kwakaderera pane yakaderera kabhoni simbi.Zvinhu zvinopisa-zvinopisa uye zvinotonhora zvinogona kushandiswa zvakananga pasina kupisa kupisa, kana mushure mekupisa kupisa.Yepakati kabhoni simbi mushure mekudzima uye kudziya ine yakanaka yakazara mechanical zvivakwa.Kuomarara kwepamusoro kunogona kuwanikwa kunosvika HRC55 (HB538), uye σb iri 600-1100MPa.Naizvozvo, mukushandiswa kwakasiyana-siyana kwepakati simba level, yepakati kabhoni simbi ndiyo inonyanya kushandiswa.Pamusoro pekushandiswa sezvivakwa zvekuvaka, inoshandiswawo zvakanyanya mukugadzira zvikamu zvakasiyana-siyana zvemuchina.
(3) High carbon steel
Inowanzonzi simbi yemidziyo, iyo kabhoni yemukati inobva pa0.60% kusvika 1.70%, uye inogona kuomeswa nekudzikamiswa.Sando, mbariro, nezvimwewo zvinogadzirwa nesimbi ine kabhoni inokwana 0.75%;maturusi ekucheka akadai semadhiri, matepi, mareamers, nezvimwe zvinogadzirwa nesimbi ine kabhoni inokwana 0.90% kusvika 1.00%.
2.Yakarongedzwa nesimbi yemhando
Zvinoenderana nemhando yesimbi, inogona kukamurwa kuita yakajairwa kabhoni simbi uye yepamusoro-mhando kabhoni simbi.
(1) Yakajairwa kabhoni structural simbi, inozivikanwawo seyakajairwa kabhoni simbi, ine zvirambidzo zvakakura pane kabhoni yemukati, maitiro ekuita, uye zvirimo zve phosphorus, sarufa uye zvimwe zvakasara zvinhu.MuChina nedzimwe nyika, yakakamurwa kuita zvikamu zvitatu zvinoenderana nevimbiso yemamiriro ekutakura: Kirasi A simbi (Kirasi A simbi) isimbi ine yakavimbiswa michina zvinhu.Kirasi B simbi (Kirasi B simbi) isimbi ine yakavimbiswa chimiro chemakemikari.Simbi yakakosha (C-mhando simbi) isimbi inovimbisa zvese zvemakanika zvinhu uye kuumbwa kwemakemikari, uye inowanzo shandiswa kugadzira zvimwe zvakakosha zvikamu.China pari zvino inogadzira uye inoshandisa yakanyanya A3 simbi (Kirasi A No. 3 simbi) ine kabhoni inokwana inenge 0.20%, iyo inonyanya kushandiswa kune engineering zvivako.
Dzimwe kabhoni structural steels dzinowedzerawo trace uwandu hwealuminium kana niobium (kana mamwe ma carbide-forming elements) kugadzira nitrides kana carbide particles kudzikamisa kukura kwezviyo.Kuti uwane rumwe ruzivo rweCNC, tsvaga iyo yeruzhinji account "NC programming teaching" paWeChat, Simbisa simbi uye chengetedza simbi.MuChina nedzimwe nyika, kuitira kuti isangane nezvinodiwa zvakakosha zvesimbi yehunyanzvi, chimiro chemakemikari uye zvimiro zveyakajairwa kabhoni structural simbi zvakagadziridzwa, nokudaro kugadzira nhevedzano yesimbi yehunyanzvi yeakajairwa kabhoni structural simbi (senge mabhiriji, zvivakwa, Simbi dzesimbi, simbi yekumanikidza midziyo, nezvimwewo).
(2) Kana ichienzaniswa neyakajairwa kabhoni structural simbi, yepamusoro-soro kabhoni structural simbi ine yakaderera zvirimo sarufa, phosphorus uye zvimwe zvisiri simbi inclusions.Zvinoenderana neyakasiyana kabhoni yemukati uye mashandisiro, iyi mhando yesimbi inogona kukamurwa kuita zvikamu zvitatu:
① Isingasviki 0.25% C isimbi yakaderera-kabhoni, kunyanya 08F uye 08Al ine kabhoni yemukati isingasviki 0.10%, inoshandiswa zvakanyanya sezvikamu zvakadzika-kudhirowa zvakaita semotokari nemagaba nekuda kwekudhirowa kwavo kwakadzika uye kusimba ……mirira. .20G ndicho chinhu chikuru chekugadzira akajairwa boilers.Uye zvakare, yakaderera kabhoni simbi inoshandiswa zvakanyanya se carburizing simbi yekugadzira michina.
②0.25～0.60% C isimbi yepakati kabhoni, iyo inonyanya kushandiswa munzvimbo yakadzimwa uye ine hasha kugadzira zvikamu muindasitiri yekugadzira michina.
③ Kupfuura 0.6% C isimbi yakakwira kabhoni, iyo inonyanya kushandiswa mukugadzira zvitubu, magiya, rolls, nezvimwe. Zvinoenderana neakasiyana manganese emukati, inogona kupatsanurwa kuita mapoka maviri esimbi ane zvakajairika manganese content (0.25-0.8) %) uye yakakwirira manganese zvirimo (0.7-1.0% uye 0.9-1.2%).Manganese inogona kuvandudza kuoma kwesimbi, kusimbisa ferrite, uye kugadzirisa goho resimba, kusimba kwesimba uye kupfeka kuramba kwesimbi.Kazhinji, mucherechedzo wekuti "Mn" unowedzerwa mushure megiredhi resimbi ine yakakwira manganese yemukati, senge 15Mn uye 20Mn, kuti isiyanise kubva kabhoni simbi ine yakajairika manganese zvirimo.
3.Kuronga maererano nechinangwa
Zvinoenderana nekushandiswa, inogona kupatsanurwa kuita kabhoni yekugadzira simbi uye kabhoni mudziyo simbi.
Carbon tool steel Iyo kabhoni yemukati iri pakati pe0.65 ne1.35%.Mushure mekurapwa kwekupisa, kuomarara kwakanyanya uye kushomeka kwepamusoro kunogona kuwanikwa.Inonyanya kushandiswa kugadzira zvishandiso zvakasiyana-siyana, maturusi ekucheka, molds uye maturusi ekuyeresa (ona simbi yekushandisa).
Carbon structural simbi yakakamurwa kuita 5 mamakisi zvichienderana nekusimba kwegoho resimbi:
Q195, Q215, Q235, Q255, Q275
Imwe neimwe mhando yakakamurwa kuita A, B, C, uye D mamakisi nekuda kwemhando dzakasiyana.Kune marudzi mana pakunyanya, uye mamwe ane imwe chete;uyezve, pane misiyano yedeoxidation nzira yekunyungudutsa simbi.
Deoxygenation nzira chiratidzo:
F - simbi inopisa
b——simbi-yakaurayiwa
Z——simbi yakaurayiwa
TZ——special killed steel
Material yesimbi yakatenderera: Q195, Q235, 10 #, 20 #, 35 #, 45 #, Q215, Q235, Q345, 12Cr1Mov, 15CrMo, 304, 316, 20Cr, 40Cr, 20CrMo, 3CrMo, 3CrMov, 30CrMov, 40CrMov 5, 65Mn , 50Mn, 50Cr, 3Cr2W8V, 20CrMnTi, 5CrMnMo, nezvimwewo.
Nguva yekutumira: Jun-05-2023