Musiyano uripo pakati peQ195, Q215, Q235, Q255 neQ275 ndeupi?
Simbi yekuvaka kabhoni ndiyo inonyanya kushandiswa, huwandu hukuru hwesimbi dzinokandwa musimbi, ma profiles nema profiles, kazhinji hadzidi kushandiswa zvakananga nekupisa, kunyanya pakugadzira nekugadzira.
Q195, Q215, Q235, Q255 naQ275, zvichingodaro, zvinoratidza giredhi resimbi, giredhi resimbi nemumiriri wepoindi yekukohwa yebhii (Q), kukosha kwepoindi yekukohwa, mhando, mhando nezvimwe zviratidzo (A, B, C, D) nzira yekubvisa oxygenation yezviratidzo nezvimwewo zvikamu zvina zvemusanganiswa wakatevedzana. Kubva pakuumbwa kwemakemikari, giredhi resimbi diki Q195, Q215, Q235, Q255 naQ275 rakakura, kabhoni yakawanda, manganese yakawanda, purasitiki yayo yakasimba. Hunhu hwemakanika kubva pamapoindi, magiredhi ari pamusoro anoratidza kuti ukobvu ≤ 16mm hwepoindi yekukohwa yesimbi. Simba rayo rekudhonza raive: 315-430, 335-450, 375-500, 410-550, 490-630 (obN/mm2); qi kureba kwayo kwaive: 33, 31, 26, 24, 20 (0.5%). Saka, pavanounza simbi kuvatengi, vatengi vanofanira kuyeuchidzwa kutenga zvinhu zvakasiyana zvesimbi zvichienderana nezvinhu zvinodiwa zvechigadzirwa, kuitira kuti zvisakanganise mhando yechigadzirwa.
Ndeupi musiyano uripo pakati pezvinhu zveQ235A neQ235B?
Q235A neQ235B zvese isimbi yekabhoni. Muchiyero chenyika cheGB700-88, musiyano wezvinhu zveQ235A neQ235B unonyanya kuwanikwa muhuwandu hwekabhoni hwesimbi, zvinhu zveQ235A zviri muhuwandu hwekabhoni mu0.14-0.22 ﹪ pakati; Q235B haite bvunzo yemhedzisiro, asi inowanzoita bvunzo yemhedzisiro yekupisa, V-notch. Zvichienzaniswa, hunhu hwesimbi yeQ235B huri nani pane simbi yeQ235A. Kazhinji, chigayo chesimbi chiri mumaprofiles akapedzwa chisati chabuda mufekitori chakanyorwa paplate yekuzivisa. Vashandisi vanogona kuziva kana chinhu chacho chiri Q235A, Q235B, kana zvimwe zvinhu zviri paplate yekuzivisa.
Magiredhi esimbi ekuJapan ndeekuti SPHC, SPHD, nezvimwewo. Zvinorevei?
Magiredhi esimbi yeJapan (JIS series) yesimbi yakajairika inoumbwa nezvikamu zvitatu: chikamu chekutanga chinoratidza zvinhu, zvakaita se: S (Steel) zvinoreva simbi, F (Ferrum) zvinoreva simbi. Chikamu chechipiri chezvimiro zvakasiyana, mhando, mashandisirwo, zvakaita seP (plate) ndiro iyoyo, T (chubhu), K (kogu) chishandiso ichocho. Chikamu chechitatu chetafura hunhu hwenhamba, kazhinji simba rekudhonza. Zvakadai se: ss400 - yekutanga s iyo simbi (Steel), yechipiri s iyo "structure" (Structuree), 400 yesimba remutsara wakaderera we400Mpa simbi yakajairika inoumbwa. Pakati pavo: sphc ---- yekutanga Ssteel Steel chidimbu, P yeplate Pate chidimbu, H yekupisa chidimbu chekupisa, chidimbu chekutengeserana, zvese zvinoratidza kuti chidimbu chesimbi chinopfungaira uye chesimbi.
SPHD----- zvinoreva jira resimbi rinopisa rakamonerwa uye strip yekudhinda.
SPHE------ zvinoreva machira esimbi anopisa akaputirwa uye zvidimbu zvekudhirowa zvakadzama.
SPCC------ zvinoreva jira resimbi rakaputirwa nekabhoni rinotonhora uye strip yekushandiswa kwakajairika, zvakaenzana negiredhi reChina Q195-215A. Bhii rechitatu C idimbu reCold, iro rinodikanwa kuti pave nechokwadi chekuti bvunzo yekudhonza iri pakupera kwegiredhi pamwe chete naT yeSPCCT.
SPCD------ inoratidza simbi yekabhoni yakaputirwa inotonhora uye strip yesimbi yekubaya, yakaenzana nesimbi yekabhoni yemhando yepamusoro yeChina 08AL (13237).
SPCE------ zvinoreva jira resimbi rakaputirwa nekabhoni rakatonhora uye strip yekudhirowa yakadzika, yakaenzana nesimbi inobaya yeChina 08AL (5213). Kuti uve nechokwadi chekuti haishande, wedzera N kuSPCEN pakupera kwegiredhi.
Sheti resimbi yekabhoni yakaputirwa nechando uye chimiro chemutsara, mamiriro eA akasungirirwa, akajairwa S, 1/8 yakasimba pa8, 1/4 yakasimba pa4, 1/2 yakasimba pa2.
Kodhi yekupedzisa pamusoro: hapana kupedzisa kweGloss paD, kupedzisa kweGloss paB. Sezvakaita SPCCT-SD inoratidza kabhoni yakajairwa yakapfava, isina kupedzisa kweGloss inotonhorera kuti ishandiswe zvakanyanya. Zvadaro SPCCT-SB inoratidza kabhoni yakapfava, yakapedzwa zvakajeka, yakatonhorera inotonhora ine hunhu hwemakanika hwakasimbiswa.
Nguva yekutumira: Chikumi-24-2024
