Khoom Taw Qhia thiab Thov
45CR1M7 yog hom kev loj-lub zog tshwj xeeb steel tsim rau cov chaw ua haujlwm rau hauv cov tsheb kub.
45Crocr1mov yog ib tug tsawg-alloy high-zog steel nrog siab zog, muaj zog siab, tsis muaj kev npau taws brittleness thiab lwm yam zoo. Nws cov tshuaj lom neeg muaj pes tsawg leeg yog ua tib zoo tsim los ua kom zoo dua cov khoom siv. Cov pa roj carbon (c) Cov ntsiab lus yog tswj tau ntawm 0.42-0.50%, uas ua kom muaj zog txaus thiab tiv thaiv tus brittleness uas yuav tshwm sim los ntawm ntau cov ntsiab lus carbon. Qhov kev sib ntxiv ntawm silicon (si) thiab manganese (mn) Txhim kho cov khoom siv phosphorus (p) Cov lus qhia ntawm chromium (CR), Molybdenum (MO), Vanadium (V) lub zog kom txhim kho cov khoom siv siab, corrosion tsis kam thiab oxidation tsis kam.
Raws li GB / T20410-2006 tus qauv, 45cr1mov qhia tau cov khoom siv zoo nkauj. Nws lub zog tensile tsis yog tsawg dua 825MPA thiab cov txiaj ntsig lub zog tsis tsawg tshaj li 725MPA, uas ua kom muaj zog ruaj khov ua haujlwm nyob rau hauv kev ntxhov siab. Lub caij no, qhov tseem ceeb ntawm ntu elongation thiab seem shrinkation qhia tias cov hlau muaj cov xim zoo thiab muaj peev xwm los tswj cov qauv kev ua haujlwm hauv qab kev thauj khoom. Nws cov kev cuam tshuam ua haujlwm AKV ncav 34J, qhia kev cuam tshuam zoo tsis kam.
Hais txog kev kho cua sov, 45cr1mov tau raug txiav txim siab quenching thiab tempering cov txheej txheem kom tau txais lub koom haum zoo tshaj plaws thiab cov khoom. Lub quenching kub ntawm 925-955 degree, ua ke nrog roj txias, muab cov hlau kom tau txais kev tawv thiab Martensitic lub koom haum; Cov txheej txheem tom qab-ntsuas kub (650-720 degree) zoo tshem tawm sab hauv kev ntxhov siab thiab txhim kho cov tawv thiab hluav taws xob ruaj khov ntawm cov khoom.
Hauv kev pom ntawm nws cov kev ua tau zoo, 45cr1mov High-lub zog kub tau siv hauv lub zog hluav taws xob, feem ntau raws li cov neeg siv hluav taws xob ceev, cov roj nrawm, roj turbines, roj av, compressors thiab lwm yam. Nyob rau hauv cov kev ua haujlwm hnyav no, 45cr1mov tsis yog ua rau muaj kev ntxhov siab ntau dua, tab sis kuj yuav tsum tiv thaiv cov kev nyuaj siab, thiab kev sib tw, thiab kev ntseeg tau muaj feem xyuam rau kev ua haujlwm zoo ntawm cov cuab yeej.
Khoom Siv Khoom Siv Tshuaj Ntau
| Carbon (c) | 0.42%-0.49% |
| Silicon (si) | 0.17% -0.37 |
| Manganese (mn) | 0.50% -0.80% |
| Phosphorus (p) | Tsawg dua los yog sib npaug rau 0.030% |
| Sulphur (s) | Tsawg dua los yog sib npaug rau 0.030% |
| Chromium (cr) | 0.90%-1.20% |
| Molybdenum (mo) | 0.15% -0.25 |
| Aluminium (AL) | Tsawg dua los yog sib npaug rau 0.050% |
| Titanium (ti) | Tsawg dua los yog sib npaug rau 0.030% |
| Niobium (nb) | Tsawg dua los yog sib npaug rau 0.050% |
| Tooj Liab (Cu) | Tsawg dua los yog sib npaug rau 0.030% |
| Npib tsib caug (ni) | Tsawg dua los yog sib npaug rau 0.30% |
Cov Khoom Siv Neeg Kho Tshuab Ntawm Cov Ntaub Ntawv
| Paib lub zog | 950-1050MPA |
| Lub zog tensile | 1100-1300MPA |
| Elongation | 15%-20 |
| Kev nyuaj | 250-280hb |
Kev Kho Cua Sov
- Li qub: tuaj yeem txhim kho cov tawv thiab cov yas ntawm cov hlau, txo qhov nyuaj. Feem ntau cov hlau yog rhuab rau cov ntsuas kub haum, tuav lub sijhawm tom qab cua txias.
- Quenching: Qhov kub kub yog feem ntau yog 830-860 degree, kom ua tiav cov roj tsis zoo, kom ua kom muaj zog nrawm, lub zog thiab hnav tsis kam ntawm steel 6.
- Tempering: Tom qab quenching, cov hlau yog rhuab rau 500-650 degree, tuaj yeem txo cov brittleness, txhim kho kev ntxhov siab hauv sab hauv.
Cim npe nrov: 45CR1MOV, Suav teb 45cr1mov tuam ntxhab, cov chaw muag khoom, Hoobkas
