Cov cuab yeej siv hluav taws xob ntau zaus txoj kev tempering

Cov cuab yeej siv hluav taws xob ntau zaus siv cov nyhuv ntawm daim tawv nqaij, uas yog, induction cua sov thev naus laus zis, txhawm rau nce qhov kub ntawm qhov chaw ua haujlwm sai, thiab qhov kub ntawm qhov chaw ua haujlwm tuaj yeem nce mus rau 800-1000 ° C hauv ob peb feeb. Nrog rau txoj kev loj hlob ntawm kev lag luam, induction cua sov tshuab ntawm high-frequency quenching khoom tau raug txhim kho tsis tu ncua, thiab daim ntawv thov kuj tau txuas ntxiv mus. Tom qab lub workpiece yog quenched los ntawm high-frequency quenching khoom, nws yuav tsum tau tempered nyob rau hauv lub sij hawm kom txo tau lub brittleness ntawm lub quenching hloov chaw, tshem tawm cov kev ntxhov siab nyob rau hauv tom qab quenching, txhim kho lub plasticity thiab toughness, thiab ua tiav cov khoom yuav tsum tau. Lub hardness ntawm lub workpiece tom qab high-frequency quenching yog siab tshaj qhov zoo tib yam quenching, thiab hardness kuj yog ib qho yooj yim los txo tom qab tempering. Cov nram qab no editor qhia peb feem ntau siv tempering txoj kev ntawm no:

1. Tempering nyob rau hauv lub cub tawg:

Rauv tempering yog qhov feem ntau txoj kev tempering, thiab nws yog haum rau ntau qhov ntau thiab tsawg ntawm workpieces. Nws yog feem ntau tempered nyob rau hauv lub qhov cub rauv nrog ib tug kiv cua. Lub tempering kub yuav tsum tau txiav txim raws li cov khoom ntawm lub workpiece, hardness tom qab quenching thiab lub hardness yuav tsum tau. Feem ntau, qhov kub ntawm cov hlau alloy yog siab dua li ntawm cov hlau; Lub hardness tom qab quenching yog qis dua, thiab tempering kub yuav tsum tau txo kom tsim nyog.

2. Self-tempering:

Lub thiaj li hu ua self-tempering yog los tswj lub txias lub sij hawm ntawm induction quenching ntawm high-frequency quenching khoom, kom lub nto ntawm lub workpiece yog quenched tab sis tsis txias los ntawm. Cov hluav taws kub uas nyob hauv thaj chaw quenching yog sai sai hloov mus rau qhov chaw quenched ntawm lub workpiece thiab nce mus txog qhov kub thiab txias kom ua rau saum npoo quenched txheej Tempered. Kev hloov pauv ntawm qhov kub thiab txias ntawm induction hardened workpieces thaum nws tus kheej tempering. Self-tempering yog tsim rau tib lub sijhawm cua sov thiab quenching ntawm workpieces nrog cov duab yooj yim.

3. Induction tempering:

Induction tempering Tom qab induction hardening ntawm ntev ncej thiab lub tes tsho, induction tempering yog siv qee zaum. Induction tempering feem ntau yog txuam nrog induction hardening los ua ib qho induction cua sov kho cov kav dej. Tom qab lub workpiece yog rhuab los ntawm quenching inductor thiab txias los ntawm cov dej tsuag lub nplhaib, nws yog tsis tu ncua rhuab los ntawm tempering inductor rau tempering.

Piv nrog rau tempering nyob rau hauv lub cub tawg, qhov induction tempering muaj lub sij hawm cua sov luv dua thiab cua kub ceev. Qhov tshwm sim yog ib tug microstructure nrog ib tug zoo divergence. Qhov hnav tsis kam thiab cuam tshuam toughness tom qab tempering yog zoo dua li cov tempering hauv qhov cub. Qhov hluav taws kub.