Disadvantages ntawm hluav taws xob rauv:

Disadvantages ntawm hluav taws xob rauv:

1) Yuav tsum tau nce tus nqi ntawm cov khoom siv hluav taws xob.

 

2) Tus nqi hluav taws xob yog siab heev.

 

3) Thaum cov cua kub tsis kam kub siab tshaj 1000 degree, cov khoom siv refractory tuaj yeem ua hluav taws xob, thiab kev rwb thaiv tsev yuav tsum tau them sai sai rau.

Qhov zoo ntawm hluav taws xob cua sov rauv:

1) Nws yog qhov yooj yim kom tau txais qhov kub thiab txias tshaj li qhov cub hluav taws xob.

 

2) Nws tuaj yeem ua kom sov los ntawm sab hauv cov khoom kom nce qhov kub thiab txias.

 

3) Nws yog ib qho yooj yim rau siv nyob rau hauv kev tswj cua sov cua sov thiab lub tshuab nqus tsev rauv.

 

4) Lub tshuab hluav taws xob tsis muaj qhov hluav taws xob poob ntawm cov roj rauv, yog li nws muaj thermal efficiency.

 

5) Yooj yim los tswj qhov kub thiab txias, yooj yim rau kev tswj chaw taws teeb thiab kev kho kom zoo.

 

6) Nws tuaj yeem ua kom sov sai sai.

 

7) Kev ua haujlwm zoo thiab tsis muaj kuab paug rau ib puag ncig.

Dab tsi yog qhov cub hluav taws xob

 

Hluav taws xob cua sov cua sov tuaj yeem siv cov cua sov hlau lossis cov cua sov uas tsis yog hlau los ua kom muaj cua sov. Nws cov qauv yooj yim thiab ntau yam kev siv yog nws cov yam ntxwv tseem ceeb. Nws tuaj yeem siv dav hauv annealing, normalization, quenching, tempering, carburizing thiab carburizing thiab nitriding. Tos. Cov hlau cua kub tseem ceeb muaj xws li Ni-Cr cua sov xov hlau (feem ntau, qhov siab tshaj plaws yog siv mus txog 1200 degree), Mo-Si alloys thiab cov hlau ntshiab xws li W, Mo; Cov cua kub uas tsis yog hlau muaj xws li SiC (feem ntau, qhov siab tshaj plaws tuaj yeem ua kom sov txog 1600 degree), LaCrO3 thiab graphite rods (tuaj yeem ua kom sov txog 2000 degree hauv lub tshuab nqus tsev lossis tiv thaiv huab cua).

Electron beam rauv

 

Lub qhov cub hluav taws xob uas ua rau cov khoom siv hluav taws xob kub ceev kom sov thiab yaj lawv (Daim duab 4 qhia lub cub hluav taws xob hluav taws xob). Nyob rau hauv lub tshuab nqus tsev vacuum plhaub, lub cathode yog rhuab los ntawm ib tug tsawg-voltage fais filament kom nws emit electrons. Cov kab hluav taws xob hluav taws xob tau nrawm nrawm los ntawm qhov chaw hluav taws xob high-voltage uas ua kom lub anode nrawm nrawm, tawg cov khoom hlau ntawm lub anode, thiab hloov hluav taws xob mus rau hauv tshav kub. Vim tias cov kab hluav taws xob hluav taws xob tuaj yeem ua kom tuab heev los ntawm cov khoom siv hluav taws xob tsom, nws tuaj yeem ua kom kub siab heev hauv cov khoom tawg ntawm cov khoom. Lub tshuab hluav taws xob hluav taws xob yog siv los ua cov hlau tshwj xeeb, refractory thiab active hlau.

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