Tempering kub cuam tshuam li cas lub toughness ntawm H13 khoom?

Tempering kub muaj qhov cuam tshuam loj rau qhov toughness ntawm H13 khoom. Ntawm qhov kub thiab txias (<550°C), toughness is low and brittleness is high; the ideal range for overall toughness is between 550 and 600°C, which efficiently releases tension and improves impact resistance.

 

1. Kev sib txuas ntawm toughness thiab tempering kub

Ntau yam ntawm qhov kub thiab txias

Kev ua tau zoo ntawm Toughness

Kev tshuaj xyuas qhov ua rau

<550°C

High brittleness thiab tsis toughness

Unreleased residual stress, unstable martensitic qauv, thiab microcrack susceptibility

Qhov zoo tshaj plaws yog 550-600 degree.

Zoo tagnrho toughness

Kev ntxhov siab raug tshem tawm tag nrho, cov qauv hloov pauv mus rau hauv cov txheej txheem tempered martensite ntxiv rau cov carbides tawg, thiab nws muaj qhov cuam tshuam zoo tshaj plaws ntawm 600 degree.

Txo qhov ua kom muaj zog

Txawm hais tias kev hloov pauv me ntsis nce, lub matrix softens, carbides coarsen, lub zog thiab hnav tsis kam yog qhov cuam tshuam loj, thiab kev ua haujlwm tag nrho poob qis.

Daim Ntawv Thov: Hauv Wuhan cov pwm pwm, 580℃× 2h × 2 tempering yog ib qho txheej txheem. Kev cuam tshuam rau qhov hnyav hnyav uas ua tiav qhov kev xav tau ntawm qhov siab - qhov xwm txheej thauj khoom tuaj yeem ncav cuag 15-20 J / cm².

 

2. Kev tswj qhov kub thiab txias cuam tshuam rau kev ua haujlwm zoo

Repercussions ntawm Tsis txaus Toughness:

Thaum lub sij hawm siab - txhaj tshuaj molding los yog stamping, pwm yog qhov yooj yim rau tawg sai;

Kev pabcuam lub neej yog luv luv los ntawm kev nthuav tawm sai ntawm thermal qaug zog tawg (crazing);

Kev ua tsis tiav thaum ntxov yog tshwm sim los ntawm kev ntxhov siab hauv cheeb tsam.

Case Study: Tom qab tsuas yog peb hnub ntawm kev ua haujlwm, ib lub tuam txhab H13 kub khiav nozzles tawg brittlely vim qhov kub thiab txias (tsuas yog 530 degree). Yog li ntawd, tag nrho batch ntawm cov khoom raug muab pov tseg.

 

3. Cov kauj ruam tseem ceeb los txhawb kom muaj zog

Ua Ob Chav Tempering: Txhawm rau tshem tawm tag nrho cov kev ntxhov siab rov qab, txias rau ambient kub tom qab pib tempering;

Precise Temperature Control: Txhawm rau tiv thaiv kom tsis txhob muaj cua sov hauv cheeb tsam lossis cua sov, siv PID qhov kub thiab txias -tswj lub qhov cub kom lav qhov kub sib txawv tsawg dua lossis sib npaug li ± 5℃;

Multi-Point Temperature Measurement Verification: Kom paub meej tias qhov kub thiab txias tsis sib xws, teeb tsa qhov ntsuas kub ntawm ntau cov ntsiab lus thoob plaws lub qhov cub;

Ua kom sov kub Curves: Ua kom tiav cov txheej txheem traceability, khaws cov ntaub ntawv cua sov thiab txias rau txhua qhov cub.

"Kev tswj qhov kub thiab txias, muaj pes tsawg tus ntawm cov kev sim, thiab cov ntaub ntawv khaws cia" yog cov ntsiab lus kev nyab xeeb uas lav txhua pawg ntawm H13 workpieces muaj qhov zoo toughness thiab siab zog.