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HARDNESS

Hardness nyob rau hauv kev sib raug zoo rau cov ntsiab lus cobalt thiab grain loj

Hardness yog cov khoom siv kho tshuab ua haujlwm rau lwm cov khoom siv nyuaj thaum nws nkag mus rau nws.Tus nqi no feem ntau ntsuas los ntawm "Vickers Hardness txheej txheem" ​​(ISO 3878) lossis "Rockwell Hardness Procedure" (ISO 3738).Zoo li hnav tsis kam, hardness kuj nce ntxiv nrog cov nplej me me thiab cov ntsiab lus qis cobalt.Yog li ntawd, hardness feem ntau yog siv los ua ib qho kev siv rau kev hnav tsis kam.


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Fracture Toughness

Fracture toughness nyob rau hauv kev sib raug rau grain loj thiab cov ntsiab lus cobalt.

Thaum ib yam khoom raug kev nyuaj siab sab nraud, qhov no ua rau cov neeg kho tshuab tensions.Nyob rau hauv cov xwm txheej no, ob qho tib si lub zog thiab ductility ntawm cov khoom qhia lub hauv paus rau lub tswv yim ntawm toughness.Nyob rau hauv lwm yam lus, toughness yog txhais raws li lub peev xwm los tiv thaiv puas los yog rupture loj hlob."Palmqvist Method" nquag siv los txiav txim siab tus nqi toughness, KIC.

Thov qhia raws li hauv qab no rau kev txiav txim:

* Cov khoom siv ntawm cov hlau, Low Carbon Steel.Medium Carbon Steel.High Carbon Steel.Stainless Steel.Brass.Aluminium.Iron.Optimum with Code of Materials.

* Lub taub hau Styles, thov qhia thaum lub taub hau nrog lub tshuab ntxhua khaub ncaws.

* Hollow ntsia hlau, thov qhia thaum siv rau hollow ntsia hlau.

* Daim duab peb sab ntsia hlau, thov qhia lub dav hlau xaim thaum siv rau daim duab peb sab ntsia hlau.

* Cov ntsia hlau tsis yog tus qauv, thov xa cov duab kos lossis cov qauv thaum siv rau cov ntsia hlau tsis zoo.

Cov lus nug nquag siv cov ntsia hlau thiab txiv ntoo pwm:

1. Tus neeg ua haujlwm tus tswv muaj kev paub txog pwm thiab cov qauv tsim, tshuaj xyuas qhov laj thawj ntawm kev faib tsis tsim nyog ntawm kev tuag kev ntxhov siab thiab deformation.

2.Qhov kev huv ntawm cov pwm, lub puab qhov tiav tsis txaus.

3.Lub rigidity ntawm lub tes tsho cov khoom, lub tshav kub tsis kam, thiab kev kho cua sov hardness yog tsis tsim nyog.

4.In thiaj li txuag tau tus nqi ntawm kev tsim khoom, lawv xaiv cov khoom tsis zoo tungsten carbide steel thiab hlau pas nrig, alloy specifications thiab nyiag khoom nailing loj log yog tsis tsim nyog.

5.Qhov kev sib tsoo tsis tsim nyog, tsis hloov cov roj nplua nyeem thiab xyuas lub tshuab mus ntev.

6.Tus neeg ua haujlwm tus tswv ntawm kev kho yuav tsum muaj kev ua haujlwm siab.


  • Yav dhau los:
  • Tom ntej:

  • Sau koj cov lus ntawm no thiab xa tuaj rau peb