S460N/Z35 simbi inogadzirisa zvinhu, simbi yakasimba yeEuropean standard, S460N, S460NL, S460N-Z35 simbi: S460N, S460NL, S460N-Z35 isimbi inokwenenzverwa inopisa inokwenenzverwa pasi pemamiriro akajairwa/akajairika ekumonereka, ukobvu hwesimbi yeS460 simbi haupfuuri 200mm.
S275 yekushandiswa kwesimbi yekuvaka isiri alloy structural steel standard: EN10025-3, nhamba: 1.8901 Zita resimbi rine zvikamu zvinotevera: Vara rechiratidzo S: structural steel ine ukobvu hunoenderana neiri pasi pe16mm kukosha kwesimba rekugadzira: kukosha kwekukohwa kushoma Mamiriro ekutumira: N inotsanangura kuti kukanganiswa pakupisa kwete pasi pe -50 degrees kunomiririrwa nevara guru L.
S460N, S460NL, S460N-Z35 Saizi, chimiro, huremu uye kutsauka kunobvumirwa.
Saizi, chimiro uye kutsauka kunobvumirwa kweplate yesimbi zvinofanirwa kutevedzera zvinodiwa neEN10025-1 muna 2004.
S460N, S460NL, S460N-Z35 mamiriro ekutumira Maplate esimbi anowanzo tumirwa ari mumamiriro akajairika kana kuburikidza nekutenderedzwa kwakajairika pasi pemamiriro akafanana.
S460N, S460NL, S460N-Z35 Kuumbwa kweMakemikoro kwesimbi yeS460N, S460NL, S460N-Z35 Kuumbwa kwemakemikari (kuongorora kunyunguduka) kunofanira kuenderana netafura inotevera (%).
Zvinodiwa pakuumbwa kwemakemikari eS460N, S460NL, S460N-Z35: Nb+Ti+V≤0.26; Cr+Mo≤0.38 S460N Kuongororwa kwekunyunguduka kweCarbon Equivalent (CEV).
S460N, S460NL, S460N-Z35 Hunhu hwemuchina Hunhu hwemuchina uye hunhu hwemuchina hweS460N, S460NL, S460N-Z35 zvinofanirwa kuzadzisa zvinodiwa patafura inotevera: Hunhu hwemuchina hweS460N (hwakakodzera kuchinjika).
Simba rekurova reS460N, S460NL, S460N-Z35 riri mumamiriro akajairika.
Mushure mekunamirwa uye kugadziriswa, simbi yekabhoni inogona kuwana chimiro chakaenzana kana kuti chakaenzana, uye mushure mekudzima, inogona kuwana chimiro chisina kuenzana. Saka, pakudzidza chimiro mushure mekupisa, kwete chete dhayagiramu yechikamu chekabhoni yesimbi asiwo curve yekuchinja kweisothermal (C curve) yesimbi inofanira kutaurwa nezvayo.
Dhayagiramu yechikamu chesimbi chekabhoni inogona kuratidza maitiro ekukwesha kwesimbi pakutonhorera zvishoma nezvishoma, chimiro chiri patembiricha yemumba uye huwandu hwezvikamu, uye C curve inogona kuratidza chimiro chesimbi ine chimiro chakati pasi pemamiriro akasiyana ekutonhorera. C curve yakakodzera mamiriro ekutonhorera eisothermal; CCT curve (austenitic continuous cooling curve) inoshanda kune mamiriro ekutonhorera anoenderera mberi. Kusvika pamwero wakati, C curve inogona zvakare kushandiswa kufungidzira shanduko ye microstructure panguva yekutonhorera kunoenderera mberi.
Kana austenite ikatonhodzwa zvishoma nezvishoma (zvakaenzana nekutonhodzwa kwechoto, sezvakaratidzwa paMufananidzo 2 V1), zvigadzirwa zvekushandura zvinenge zviri pedyo nechimiro che equilibrium, kureva pearlite neferrite. Nekuwedzera kwehuwandu hwekutonhodza, ndiko kuti, kana V3>V2>V1, kutonhora kwe austenite kunowedzera zvishoma nezvishoma, uye huwandu hwe precipitated ferrite hunowedzera zvishoma nezvishoma, nepo huwandu hwe pearlite huchiwedzera zvishoma nezvishoma, uye chimiro chinova chakanaka. Panguva ino, huwandu hushoma hwe precipitated ferrite hunonyanya kupararira pamuganhu wezviyo.
Saka, chimiro che v1 iferrite+pearlite; chimiro che v2 iferrite+sorbite; chimiro che v3 iferrite+troostite.
Kana mwero wekutonhodza uri v4, huwandu hushoma hwe network ferrite ne troostite (dzimwe nguva huwandu hushoma hwe bainite hunogona kuonekwa) hunokonzereswa, uye austenite inonyanya kushandurwa kuita martensite ne troostite; Kana mwero wekutonhodza v5 ukadarika mwero wekutonhodza unokosha, simbi inoshandurwa zvachose kuita martensite.
Kushandurwa kwesimbi ine hunyanza kwakafanana nekwesimbi ine hunyanza, nemusiyano wekuti ferrite inotanga kudonha muchikamu chechipiri uye cementite inotanga kudonha muchikamu chechipiri.
Nguva yekutumira: Zvita-14-2022
