Txoj kev tiv thaiv deformation ntawm sim hluav taws xob rauv kev kho cua sov thiab quenching

1. nruj me ntsis tswj qhov zoo ntawm raw cov ntaub ntawv, thiab nruj me ntsis tswj qhov tsis xws luag xws li xoob segregation nyob rau hauv steel, band-zoo li, net-like thiab carbide liquefaction, thiab inclusions.

2. Txhim kho qhov loj thiab kev faib tawm ntawm carbides hauv cov qauv annealed.

3. Pre-shaping thiab kev ntxhov siab nyem annealing ua ntej quenching. Cov residual deformation ntawm txoj siav thiab cov residual kev nyuaj siab ntawm tig muaj ib tug ntau dua lub zog ntawm quenching deformation. Rau cov khoom precision thiab nyias-walled, complex-puab qhov chaw, lawv yuav tsum tau reshaped ua ntej thiab raug rau ib tug kev nyuaj siab annealing ntawm 450-670 ℃.

4. Tsis txhob muaj cua sov ntau dhau. Nyob rau hauv cov ntaub ntawv ntawm tau txais ib tug tsim nyog qauv thiab hardness, nws yuav tsum tsis txhob overemphasized kom lub alloying concentration thiab nce lub quenching kub. Rau cov txheej txheem zoo dua qub (xws li normalized lossis theem nrab quenched), qhov kub thiab txias yuav tsum tau txo qis raws li qhov tsim nyog.

5. Lub quenching cua sov yuav tsum qeeb thiab sib xws. Vim li no, cov khoom yuav tsum tau muab sib npaug rau hauv thaj chaw isothermal hauv qhov cub, thiab tsis ze rau lub cev cua sov. Warping thiab extrusion yuav tsum zam; Yog tias tsim nyog, nws tuaj yeem raug preheated ntawm 400 ~ 500 ℃ ua ntej cua sov kom tsis txhob muaj cua sov thiab cua sov tsis sib xws.

6. Tsis txhob txias ntau dhau. Vim li no, qhov nruab nrab cua txias yuav tsum raug xaiv kom tsim nyog thiab qhov ntsuas kub ntawm qhov nruab nrab yuav tsum tau tswj. Nyob rau hauv rooj plaub uas tsis qis dua qhov tseem ceeb ntawm qhov txias txias, sim ua kom txias txias, tshwj xeeb tshaj yog thaum nws qis dua 450 ° C, nws yuav tsum tau txias maj mam. Rau qhov yooj yim deformable, xws li nyias-walled ferrules nrog loj diameters. Koj tuaj yeem xaiv siv cov roj quenching lossis nitrate austempering.

7. Sib zog ua kom txias txias. Thaum quenching thiab txias, nws yog ib qho tsim nyog yuav tsum xav txog kev ua kom txias txias ntawm txhua qhov ntawm qhov chaw. Siv compressed cua los yog mechanical stirring thiab lwm yam kev ntsuas cua txias. Thaum xaiv lub tshuab rotary hardening, kev sib hloov ceev yuav tsum tau siv raws li txoj kab uas hla ntawm lub ferrule.

8. Zam kev sib tsoo ntawm qhov chaw. Tsis txhob muaj kev sib tsoo thaum lub sijhawm thauj mus los, lub tshuab ua kom sov, ua haujlwm cua sov, thiab cua txias, tshwj xeeb tshaj yog nyob rau hauv lub xeev kub liab. Xws li: cua sov nyob rau hauv lub sim hluav taws xob rauv, yuav tsum ceev faj ntawm deformation ntawm cov khoom thaum siv lub fixture.