Mechanical zog ntawm
(1) Lub zog tensile (σb):qhov siab tshaj plaws quab yuam (Fb) ntawm cov qauv thaum lub sij hawm tensile tawg yog muab faib los ntawm kev ntxhov siab (σ) ntawm qhov qub ntu ntu (Yog li) ntawm cov qauv.Chav tsev ntawm tensile zog (σb) yog N / mm2(MPa).Nws sawv cev rau lub peev xwm siab tshaj plaws ntawm cov khoom siv hlau los tiv thaiv kev puas tsuaj hauv qhov nro.Qhov twg: Fb-- lub siab tshaj plaws quab yuam los ntawm tus qauv thaum nws tawg, N (Newton); Yog li-- Thawj ntu ntu ntawm cov qauv, mm2.
(2) Yield point (σ S):qhov taw tes tawm los ntawm cov khoom siv hlau nrog cov yield phenomenon.Nws yog qhov kev ntxhov siab uas cov qauv tuaj yeem txuas ntxiv mus ntxiv yam tsis muaj zog ntxiv (ua kom tsis tu ncua) thaum lub sijhawm tensile txheej txheem.Nyob rau hauv cov ntaub ntawv ntawm kev quab yuam poob, cov ntsiab lus sab sauv thiab qis dua yuav tsum txawv.Chav tsev ntawm qhov taw tes tawm yog NF / mm2(MPa).Lub ntsiab lus siab tshaj tawm (σ SU) yog qhov siab tshaj plaws ua ntej cov qauv yields thiab lub zog poob rau thawj zaug.Lower yield point (σ SL): qhov tsawg kawg nkaus kev ntxhov siab nyob rau hauv lub yield theem thaum pib qhov kev hloov pauv tsis tau txiav txim siab.Qhov twg Fs yog lub zog tawm los (qhov tsis tu ncua) ntawm cov qauv thaum lub sij hawm tensile txheej txheem, N (Newton) Yog li ntawd yog qhov qub ntu ntu ntawm cov qauv, mm2.
(3) Elongation tom qab tawg: (σ)Hauv kev sim tensile, qhov elongation yog feem pua ntawm qhov ntev tau nce los ntawm tus qauv kev ncua deb ntawm cov qauv tom qab tawg piv nrog qhov ntev ntawm tus qauv qub.Unit yog %.Qhov twg: L1-- qhov nrug ntawm cov qauv tom qab tawg, hli;L0-- Thawj qhov nrug ntev ntawm tus qauv, mm.
(4) Txo ntawm ntu: (ψ)hauv kev sim tensile, qhov feem pua ntawm qhov kev txo qis tshaj plaws ntawm qhov chaw hla ntu ntawm qhov txo txoj kab uas hla ntawm cov qauv tom qab rub tawm thiab qhov chaw seem ntawm qhov qub yog hu ua qhov txo qis.ψ yog qhia hauv %.Qhov twg, S0-- thawj qhov chaw hla ntu ntawm tus qauv, mm2;S1-- Qhov tsawg kawg nkaus ntu ntu ntawm qhov txo txoj kab uas hla ntawm cov qauv tom qab tawg, hli2.
(5) Hardness Index:lub peev xwm ntawm cov ntaub ntawv hlau los tiv thaiv cov khoom nyuaj rau indenting nto, hu ua hardness.Raws li txoj kev xeem thiab kev siv, qhov nyuaj tuaj yeem muab faib ua Brinell hardness, Rockwell hardness, Vickers hardness, Shore hardness, micro hardness thiab kub hardness.Feem ntau siv rau cov khoom siv yeeb nkab muaj brinell, rockwell, Vickers hardness 3 yam.
(6) Brinell hardness (HB):nrog rau ib txoj kab uas hla ntawm lub pob steel los yog lub pob tawv tawv, nrog rau qhov ntsuas qhov ntsuas (F) nias rau hauv cov qauv saum npoo, tom qab lub sijhawm tuav lub sijhawm kom tshem tawm qhov kev xeem quab yuam, ntsuas cov qauv ntawm qhov chaw indentation txoj kab uas hla (L).Tus naj npawb Brinell hardness yog qhov quotient ntawm qhov kev xeem quab yuam muab faib los ntawm thaj tsam ntawm qhov indentation kheej kheej.Qhia hauv HBS, chav tsev yog N / mm2(MPa).
Mechanical zog ntawm galvanized steel yeeb nkab, Kev ua tau zoo
(1) Cov pa roj carbon;Qhov siab dua cov ntsiab lus carbon, qhov nyuaj dua cov hlau, tab sis cov yas thiab cov ductile tsawg dua.
(2) Sulfur;Yog cov khib nyiab tsis zoo hauv cov hlau, hlau nrog cov sulfur siab dua hauv kev kub siab ua haujlwm, yooj yim tawg, feem ntau hu ua kub brittleness.
(3) Phosphorus;Nws tuaj yeem txo cov plasticity thiab toughness ntawm cov hlau, tshwj xeeb tshaj yog nyob rau qhov kub thiab txias, uas yog qhov hnyav dua, thiab qhov tshwm sim no hu ua txias brittleness.Hauv cov hlau zoo, leej faj thiab phosphorus yuav tsum tau tswj nruj me ntsis.Tab sis ntawm qhov tod tes, cov pa roj carbon tsawg muaj cov sulfur thiab phosphorus ntau dua, tuaj yeem ua rau nws yooj yim rau kev tawg, txhawm rau txhim kho lub machinability ntawm steel yog qhov zoo.
(4) Manganese;tuaj yeem txhim kho lub zog ntawm cov hlau, tuaj yeem ua kom tsis muaj zog thiab tshem tawm cov kev tsis zoo ntawm cov leej faj, thiab tuaj yeem txhim kho cov tawv tawv ntawm cov hlau, cov hlau alloy siab nrog cov ntsiab lus siab manganese (siab manganese steel) muaj kev hnav zoo thiab lwm yam khoom siv lub cev.
(5) Silicon;Nws tuaj yeem txhim kho cov tawv tawv ntawm cov hlau, tab sis cov yas thiab cov tawv tawv poob qis, cov hlau hluav taws xob muaj qee qhov nyiaj ntawm silicon, tuaj yeem txhim kho cov khoom sib nqus mos.
(6) Tungsten;Nws tuaj yeem txhim kho cov tawv tawv liab, thermal zog thiab hnav tsis kam ntawm cov hlau.
(7) Chromium;Nws tuaj yeem txhim kho lub hardenability thiab hnav tsis kam ntawm steel, txhim kho corrosion kuj thiab oxidation tsis kam ntawm hlau.
(8) Zinc;Txhawm rau txhim kho corrosion kuj, cov yeeb nkab steel dav dav (dub yeeb nkab) yog galvanized.Galvanized steel yeeb nkab tau muab faib ua ob hom kub dip galvanized steel thiab hluav taws xob hlau zinc, kub dip galvanized galvanized txheej tuab, hluav taws xob galvanized nqi qis, yog li muaj galvanized steel yeeb nkab.
Mechanical zog ntawm galvanized steel yeeb nkab, Ntxuav txoj kev
1. thawj zaug siv cov kuab tshuaj ntxuav steel nto, qhov chaw ntawm cov organic teeb meem tshem tawm,
2. Tom qab ntawd siv cov cuab yeej tshem tawm xeb (xov hlau txhuam), tshem tawm cov xoob lossis qaij nplai, xeb, vuam slag, thiab lwm yam.
3. kev siv pickling.
Galvanized yog muab faib ua kub plating thiab txias plating, kub plating tsis yooj yim rau xeb, txias plating yog yooj yim rau xeb.
Mechanical zog ntawm galvanized steel yeeb nkab, Kev sib txuas hauv groove dov hom
(1) Groove weld cracking
1, cov yeeb nkab lub qhov ncauj siab zawj ib feem ntawm lub puab phab ntsa vuam bar sib tsoo du, txo zawj dov kuj.
2. Kho cov axis ntawm steel yeeb nkab thiab zawj dov cov cuab yeej, thiab yuav tsum tau cov qib steel yeeb nkab thiab zawj dov khoom.
3, kho qhov ceev ntawm lub tank siab, lub sij hawm molding ntawm lub tank siab tsis tuaj yeem tshaj cov kev cai, niaj hnub thiab qeeb zog.
(2) Rolling channel steel yeeb nkab puas
1. Smooth lub vuam tav rau ntawm phab ntsa sab hauv ntawm lub siab zawj ntawm cov yeeb nkab steel lub qhov ncauj kom txo tau qhov tsis kam ntawm zawj dov.
2. Kho cov axis ntawm steel yeeb nkab thiab zawj dov cov cuab yeej, thiab yuav tsum tau cov qib steel yeeb nkab thiab zawj dov khoom.
3, kho lub siab tank ceev, siab tank ceev tsis tuaj yeem tshaj cov kev cai, sib xws thiab qeeb quab yuam.
4. Txheeb xyuas qhov dav thiab hom kev txhawb nqa cov menyuam thiab lub siab cov menyuam ntawm cov khoom siv zawj kom pom tias ob lub rollers tsis sib haum rau ib qho loj thiab ua rau muaj qhov tshwm sim occlusal.
5. Xyuas seb qhov zawj ntawm cov yeeb nkab steel puas tau teev nrog vernier caliper.
(3) Groove rolling molding tshuab yuav tsum ua raws li cov cai hauv qab no
1. Qhov saum npoo ntawm cov yeeb nkab kawg mus rau qhov zawj yuav tsum du thiab tsis muaj concave-convex thiab dov cov cim.
2. Qhov nruab nrab ntawm qhov zawj yuav tsum yog concentric nrog cov yeeb nkab phab ntsa, qhov dav thiab qhov tob ntawm qhov zawj yuav tsum ua tau raws li qhov yuav tsum tau ua, thiab xyuas seb hom clamp puas yog.
3. Siv cov roj nplaum rau ntawm lub nplhaib roj hmab sealing thiab xyuas seb lub nplhaib roj hmab sealing puas puas lawm.Cov roj lubricating yuav tsum tsis txhob siv rau lubricant.
Post lub sij hawm: May-23-2022