- 08
- Feb
Yuav ua li cas xam lub zog ntawm induction cua sov rauv?
Yuav ua li cas xam lub zog ntawm induction cua sov rauv?
Feem ntau, txoj kev empirical yog siv los kwv yees qhov xav tau lub zog ceev ntawm lub induction cua sov cua sov. Lub zog hluav taws xob ceev ntawm txawv hardened txheej qhov tob rau cov hlau ua haujlwm ntawm ntau zaus yog qhia hauv Tab tom 2-16. Lub zog ntawm cov khoom siv hluav taws xob yog nyob ntawm tus nqi hluav taws xob ntom ntom (P) suav hauv kW / cm² ntawm qhov chaw ntawm qhov chaw ua haujlwm thiab thawj qhov chaw cua sov A hauv cm². Qhov kev xaiv ntawm lub zog ceev yog nyob ntawm thaj chaw cua sov thiab nws cov txheej txheem quenching. Qhov qis dua qhov zaus tam sim no, qhov me me ntawm txoj kab uas hla ntawm ib feem thiab qhov ntiav qhov yuav tsum tau hardening txheej tob, qhov loj dua qhov yuav tsum tau muaj zog ceev yuav tsum. Table 2-16 yog qhov pom zoo input zog ceev tus nqi. Thaum siv lub suab nrov thiab lub zog super, P feem ntau yog 0.6 ~ 2.0kW / cm². Thaum siv lub zog nruab nrab zaus, P feem ntau yog 0.8 ~ 2.5kW / cm². Deep-hardened txheej qhov tob 2-16 carbon steel hardened txheej tau ntawm ntau zaus thiab lub zog ntom ntom degrees.
Table 2-16 Hardened txheej tob ntawm carbon steel ntawm ntau zaus thiab lub zog ceev
| zaus
/hli |
Hardened txheej tob | Tsawg zog ceev | Muaj zog ceev | |||
| mm | in | kW/cm2 | kW/v2 | kW/cm2 | kW/v2 | |
| 450 | Xyoo 0.4 – 1.1 | 0.015-0.045 | 1. Xyoo 1 | 7 | 1.86 | 12 |
| 1.1-2.3 | 0.045-0.090 | 0.46 | 3 | 1.24 | 8 | |
| 10 | 1.5-2.3 | 0.060 – 0.090 | 1.24 | 8 | 2.32 | 15 |
| 2.3-4.0 | 0.090-0.160 | 0.77 | 5 | 2 | 13 | |
| 3 | 2.3-3.0 | 0.090-0.120 | 1.55 | 10 | 2.6 | 17 |
| 4.0-5.1 | 0.160-0.200 | 0.77 | 5 | 2.17 | 14 | |
| 1 | 5.1 | 0.200-0.280 | 0.77 | 5 | 1. Xyoo 86 | 12 |
| 6.1 -8.9 | 0.280-0.350 | 0.77 | 5 | 1. Xyoo 86 | 12 | |
| Iav quenching raws tus hniav profile ① | 0.4-1.1 | 0.015-0.045 | 2.32 | 15 | 3. Xyoo 87 | 25 |
① hniav profile raws quenching, nyob rau hauv. 3 – 10kHz thov kom siv ib tug tam sim no zaus ntawm qhov tsawg zog ceev.
Tib txheej txheej hardened qhov tob tuaj yeem ua tiav nrog lub zog sib txawv thiab lub sijhawm cua sov sib txawv.
Lub zog hluav taws xob siab dua thiab cov cua sov luv luv yog qhov haum rau qhov qis dua zaus; qis zog ceev thiab lub sij hawm cua sov ntev yog haum rau ntau zaus. Lub qub heats saum npoo ntawm lub workpiece thiab conducts tsawg tshav kub mus rau qhov chaw, thiab thermal efficiency yog siab dua; Thaum lub sij hawm tom kawg thermal conduction yog kho kom zoo, thiab cov thermal efficiency qis dua. Los ntawm qhov kev xav ntawm kev txuag hluav taws xob thiab qhov hloov chaw ntawm lub workpiece hardened txheej yuav tsum tsis txhob tuab heev, lub cua sov lub sij hawm ntawm lub nto hardened workpiece yuav tsum tsis txhob tshaj 10s, thiab nws yuav tsum tsis txhob ntau tshaj 15s yog hais tias nws yog me ntsis ntev, tsuas yog rau cov cai tshwj xeeb.
Ntau cov cuab yeej niaj hnub induction hardening tshuab tau nruab nrog lub zog saib xyuas kom tswj tau qhov tob ntawm txheej hardened ntawm quenched workpiece hauv kw · S. Yog li ntawd, raws li qhov yuav tsum tau muaj kW · s tus nqi, ua ntej teem lub sijhawm cua sov s, thiab tom qab ntawd siv (kW • s) / s txhawm rau nrhiav tus nqi kW uas yuav tsum tau xaiv qhov yuav tsum tau ua kom sov induction rauv hluav taws xob muab hluav taws xob ntsuas tus nqi (ntawm lub zog saib xyuas kW·s, nws kW feem ntau yog lub zog oscillation).