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Dab tsi yog Kev Ua Haujlwm Hardening Thiab cuam tshuam rau Cov Hlau Hlau?

Oct 31, 2024

Tso lus

Cov ntsiab lus
  1. Kev piav qhia ntawm kev ua haujlwm hardening
  2. Steel phaj ua hauj lwm hardening
  3. Ua rau ua hauj lwm hardening
  4. Pros thiab cons ntawm kev ua hauj lwm hardening
    1. Pros
    2. Cons
  5. Yuav ua li cas kom tsis txhob ua hauj lwm hardening?

 

Kev piav qhia ntawm kev ua haujlwm hardening

 

Kev ua hauj lwm hardening txhais tau hais tias nrog kev nce qib ntawm qhov txias deformation, hardness thiab lub zog ntawm cov phaj steel tau nce, tab sis lub peev xwm molding thiab toughness tau txo.

 

Steel phaj ua hauj lwm hardening

 

Thaum lub sij hawm txias dov, tom qab cov yas deformation ntawm cov hlau phaj, cov nplej sab hauv yog flattened thiab elongated, ua rau txo qis hauv cov yas ntawm cov hlau phaj thiab nce hardness.

 

Ua rau ua hauj lwm hardening

 

1

Cov nplej hauv cov phaj hlau yog elongated kom txog thaum cov nplej tawg, ua rau muaj qhov nce ntawm qhov ntom ntom.

 
2

Cov phaj hlau ua tiav ntawm qhov kub qis yuav ua rau nce ntawm cov nplej dislocation thiab ua rau kev ua haujlwm nyuaj.

 
3

Qhov loj ntawm deformation, qhov ntau dislocation ntawm grain, uas ua rau nce hardness thiab txo cov plasticity.

 

Pros thiab cons ntawm kev ua hauj lwm hardening

 

Pros

 

Ua hauj lwm hardening txhim kho lub zog, hardness thiab hnav tsis kam ntawm steel phaj. Ua kom cov hlau phaj siv tau rau hauv cov ntawv thov ntau dua.

 

Cons

 

Ua hauj lwm hardening yuav txo cov plasticity thiab toughness ntawm hlau, cuam tshuam rau kev nyab xeeb. Tsis tas li ntawd, kev ua cov hlau phaj yog qhov nyuaj dua.

 

Yuav ua li cas kom tsis txhob ua hauj lwm hardening?

1. Kev sib tw

Annealing ntawm kev ua hauj lwm-hardened steel phaj tuaj yeem txhim kho cov yas ntawm cov khoom thiab txo cov kev ntxhov siab seem, thiaj li txhim kho cov khoom ntawm cov hlau phaj.

2.Xaiv txoj cai ua tshuab

Los ntawm kev kho cov txheej txheem kev ua haujlwm, qib ntawm cov yas deformation thiab qhov tshwm sim ntawm kev ua haujlwm hardening tuaj yeem raug txo.

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