Cov nyhuv ntawm carburizing roj nruab nrab ntawm hluav taws xob cua sov alloy

Cov nyhuv ntawm carburizing roj nruab nrab ntawm hluav taws xob cua sov alloy

Carburizing roj nruab nrab siv nyob rau hauv kev kho mob ntawm cov hlau yog ib tug muaj zog txo nruab nrab. Cov pa roj carbon kev koom tes tuaj yeem muab faib ua ob hom: endothermic thiab exothermic, thiab nws muaj pes tsawg leeg (%) yog raws li hauv qab no.

Gas hom H2 CO CO2 N2

Endothermic type 30~40 20~30 0.1~0.5 margin

Exothermic type 10~15 5~7 5~6 margin

Tsis tas li ntawd, nws kuj muaj activated carbon thiab methane.

Cov kev kho mob carburizing feem ntau yog 900 ~ 950 degree, thiab qhov kub ntawm qhov cua sov tuaj yeem ncav cuag 1000 ~ 1100 degree. Thaum carburizing, cov khoom cua sov yuav tsum tau muab cais tawm ntawm cov roj nruab nrab, txwv tsis pub, cov cua sov yuav raug corroded.

Thaum cov khoom los yog hlau nrog cov roj nplua nyeem uas tsis tau ntxuav, ncaj qha nkag mus rau hauv lub qhov cub rau kev kho cua sov, nws tseem yuav tsim kom muaj zog txo cov roj vim yog decomposition ntawm hydrocarbons, uas yuav corrode hluav taws xob cua sov qhov chaw.

Thaum qhov kub thiab txias, tom qab hluav taws xob cua kub cua tiv tauj cov pa roj carbon monoxide, cov yeeb yaj kiab tiv thaiv oxide yuav raug rhuav tshem, thiab tom qab ntawd cov pa roj carbon monoxide yuav nkag mus rau hauv cov hlau los ua cov tshuaj tiv thaiv carburizing. Cov tsim carbides yuav ua rau cov nqi ntawm cov hlau tsis kam nce, cov yas kom txo qis, cov tawv nqaij tawm, thiab thaum kawg cov cua sov ua tsis tau sai.

Cov khoom tseem ceeb ntawm kev tiv thaiv oxide zaj duab xis ntawm hluav taws xob cua sov alloy yog: Cr2O3, NiO, Fe2O3 rau nickel-chromium thiab nickel-chromium-hlau alloys, thiab Al2O3, Cr2O3 rau hlau-chromium-aluminium alloys. Cov oxides no muaj qhov kub thiab txias hauv qhov muaj zog txo cov pa roj carbon monoxide. Nws txiav txim siab lub zog ntawm alloy lub carburization kuj.

1. Cov kab hluav taws xob yog muab tso rau sab nraum cov cua sov txheej thiab txheej rwb thaiv tsev, thiab lub plhaub yuav tsum tau zoo hauv av;

2. Khaws rau hauv qhov chaw qhuav.

Kev siv tswv yim ntawm mica hluav taws xob cua sov coil:

1. Dav siv nyob rau hauv tsev hluav taws xob lub voj voog, xws li mov cookers, microwave ncu, hluav taws xob tua kab mob, tshuab ziab plaub hau, hluav taws xob irons, thiab lwm yam.

2. Nws yog dav siv los ua cua sov qhov chaw ntawm ntau lub tshuab lub voj voog, xws li kev txhaj tshuaj molding tshuab, tshuab luam ntawv, tshuab luam ntawv, fax tshuab, thiab lwm yam.

3. Ntau yam kev lag luam thiab kev ua liaj ua teb cua sov, xws li pwm cua sov, tshuab yas, thiab lwm yam khoom siv cua sov thiab ziab.

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