42C4 Poob Wax Peev Casting

Khoom Taw Qhia

42C4 Medium Carbon Modulated Steel Properties

42C4 steel yog nruab nrab carbon modulated steel thiab txias taub hau pwm hlau. Cov hlau yog tus nqi nruab nrab thiab yooj yim rau kev ua haujlwm. Nws tuaj yeem tau txais qee qhov toughness, plasticity, thiab hnav tsis kam tom qab kev kho cua sov tsim nyog. Normalizing tuaj yeem txhawb cov ntaub so ntswg spheroidization thiab txhim kho qhov kev ua haujlwm ntawm qhov tsis muaj zog nrog lub hardness tsawg dua 160HBS. Tempered ntawm qhov kub ntawm 550 ~ 570 degree, cov hlau muaj cov khoom siv zoo tshaj plaws. Cov hlau no muaj zog hardenability thiab tsim nyog rau kev kho deg hardening xws li high-frequency quenching thiab nplaim quenching.

Daim ntawv thov

Tom qab quenching thiab tempering, 42C4 poob ciab peev casting yog siv los tsim cov khoom siv kho tshuab uas dais nruab nrab thiab ua haujlwm ntawm qhov nruab nrab ceev, xws li lub kauj khawm, lub nraub qaum ntawm lub tsheb, thiab lub zog, shafts, worms, spline shafts, lub tsho hauv nruab nrab, thiab lwm yam. . ntawm cov cuab yeej siv tshuab; Tom qab quenching thiab tempering ntawm nruab nrab kub, nws yog siv los tsim cov khoom uas dais siab load, cuam tshuam thiab nruab nrab ceev ua hauj lwm, xws li lub zog, spindles, roj twj rotors, slides, dab tshos, thiab lwm yam .; Tom qab quenching thiab tempering ntawm qhov kub thiab txias, nws yog siv los tsim cov khoom uas dais hnyav. , tsis tshua muaj kev cuam tshuam thiab hnav-tiv taus qhov chaw nrog lub cev tuab ntawm tsawg dua 25mm ntawm qhov hla ntu, xws li cov cab, spindles, shafts, dab tshos, thiab lwm yam.; siv los tsim cov tawv tawv tawv thiab hnav tsis kam tom qab quenching thiab tempering thiab high-frequency nto quenching Cov khoom uas muaj zog thiab tsis muaj kev cuam tshuam zoo, xws li lub zog, lub tes tsho, shafts, spindles, crankshafts, spindles, pins, txuas rods, screws, Cov txiv ntseej, cov khoom noj khoom haus, thiab lwm yam. Tsis tas li ntawd, cov hlau zoo li no tsim nyog rau kev tsim ntau yam kis tau tus mob uas tau txais kev kho mob carbonitriding, xws li cov iav thiab cov ncej nrog cov kab uas loj dua thiab qhov kub thiab txias toughness.

42C4 Poob Wax Investment Casting Parts Performance

• Elastic pwm

Elastic modulus E (20 degree) / MPa 200000-211700, shear modulus G (20 degree) 80800

• Kev kho cua sov

quenching 850 degree, roj txias; Tempering 520 degree, dej txias, roj txias. Qhov saum npoo quenching hardness ntawm 40Cr yog HRC52-60, thiab cov nplaim hluav taws tuaj yeem ncav cuag HRC48-55.

• Kev kho nitriding

42C4 steel yog cov hlau nitridable, thiab cov ntsiab lus nws muaj yog qhov zoo rau nitriding.

42C4 tuaj yeem tau txais qhov tawv tawv dua tom qab kev kho nitriding.

Tom qab 42C4 quenching thiab tempering, qhov siab tshaj plaws hardness tom qab kev kho nitriding tuaj yeem ncav cuag HRA72 ~ 78, uas yog, HRC43 ~ 55.

Nitriding workpiece txheej txheem txoj kev:

Forging - annealing - ntxhib machining - quenching thiab tempering - xov - tshem tawm kev ntxhov siab - ntxhib sib tsoo - nitriding - zoo sib tsoo los yog sib tsoo. Txij li cov txheej txheej nitride yog nyias thiab nkig, nws yuav tsum muaj cov qauv tsim muaj zog dua. Yog li ntawd, quenching thiab tempering tshav kub kev kho mob yuav tsum tau ua ua ntej kom tau tempered sorbate los txhim kho lub mechanical zog ntawm cov tub ntxhais thiab qhov zoo ntawm nitride txheej. Mos nitriding yog nquag siv nitriding, thiab roj nitriding feem ntau siv tam sim no.

• Vuam

42C4 los tiv thaiv kev txias txias thiab quenching cov kab nrib pleb hauv cov vuam vim cua sov dissipation los ntawm matrix. Nws yog qhov zoo tshaj rau ntxiv normalizing tom qab vuam thiab ua ntej tempering. Nws yog ib qho yooj yim rau cais tawm thaum lub sij hawm crystallization thiab rhiab rau crystallization tawg (ib hom thermal tawg). Nws yog ib qho yooj yim rau tawg nyob rau hauv arc craters thiab concave qhov chaw ntawm lub vuam thaum vuam. Cov ntsiab lus carbon yog siab, thiab nws yog ib qho yooj yim kom tau ib tug hardened qauv (martensite qauv) uas yog rhiab heev rau cov kab nrib pleb thaum lub sij hawm txias ceev. Thaum cov cua txias hauv cheeb tsam overheated yog siab, nws yog ib qho yooj yim los tsim ib qho nyuaj thiab nkig high-carbon martensite thiab embrittle cheeb tsam overheated.

Vuam txheej txheem

1. Vuam feem ntau ua nyob rau hauv lub xeev annealed (normalized).

2. Vuam txoj kev tsis txwv.

3. Siv lub zog linear loj dua thiab ua kom qhov kub thiab txias kom tsim nyog. Feem ntau, preheating kub thiab interlayer kub tuaj yeem tswj tau ntawm 250 thiab 300 degree.

4. Cov khoom siv vuam yuav tsum xyuas kom meej tias cov khoom sib xyaw ntawm cov hlau tso tawm yog qhov zoo ib yam li cov hlau hauv paus, xws li J107-Cr.

5. Kev kho cua sov thiab cua sov yuav tsum tau ua tam sim tom qab vuam. Yog tias nws nyuaj rau ua quenching thiab tempering nyob rau hauv lub sij hawm, intermediate annealing tuaj yeem ua los yog khaws cia ntawm qhov kub siab tshaj preheating rau ib lub sij hawm kom tshem tawm diffusible hydrogen thiab soften cov ntaub so ntswg. Rau cov khoom uas muaj cov txheej txheem nyuaj thiab ntau cov welds, qhov nruab nrab annealing tuaj yeem ua tau tom qab qee tus lej ntawm cov welds yog welded.

Detection Systems

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