Lub luj tshib siab: Kev siv, txheej txheem tsim khoom, thiab kev saib xyuas kev nyab xeeb
Taw qhia:
Lub luj tshib siab yog cov khoom tseem ceeb hauv ntau yam kev lag luam, suav nrog roj av, roj av, tshuaj lom neeg, hydroelectric, kev tsim kho, thiab boiler systems. Lawv daim ntawv thov yuav tsum tau ua tib zoo xav txog cov txheej txheem tsim khoom thiab kev ntsuas kev nyab xeeb. Nyob rau hauv phau ntawv qhia no, peb yuav delve rau hauv kev siv, kev tsim khoom, thiab kev ceev faj txog kev nyab xeeb tseem ceeb cuam tshuam nrog lub luj tshib siab.
Kev siv lub luj tshib siab:
Lub luj tshib siab yog feem ntau yog siv hauv cov kav dej uas yuav tsum tau hloov cov kev taw qhia ntawm kev khiav. Cov luj tshib no yog tsim los tiv thaiv qhov siab siab thiab ua kom muaj kev ncaj ncees ntawm cov kav dej. Lawv pom cov ntawv thov hauv kev lag luam uas qhov kev thauj mus los ntawm cov kua lossis cov pa roj hauv lub siab yog qhov tseem ceeb ntawm cov txheej txheem.
Kev txiav txim siab txog kev nyab xeeb:
1. Welding-Induced Carbides Formation: Thaum lub sij hawm vuam, lub luj tshib siab tau raug rov ua cua sov, ua rau kev tsim cov carbides. Qhov no tuaj yeem cuam tshuam lawv cov kev tiv thaiv corrosion thiab cov khoom siv kho tshuab. Yog li ntawd, nws yog ib qho tseem ceeb kom tsis txhob muaj cua sov ntau thaum lub sij hawm welding kom khaws cov khoom ruaj khov.
2. Post-Weld Hardness thiab Cracking: Lub luj tshib siab feem ntau pom muaj qhov tawv tawv tom qab vuam, ua rau lawv raug tawg. Txhawm rau txo qhov teeb meem no, nws raug nquahu kom preheat lub luj tshib kom dhau 300 degree thiab ua kom qeeb qeeb ntawm 700 degree tom qab vuam. Nyob rau hauv cov ntaub ntawv uas tom qab-weld kev kho cua sov tsis ua tau, xaiv high-pressure luj tshib vuam rods yuav yog lwm txoj.
3. Tiv thaiv corrosion: Txhawm rau tiv thaiv corrosion vim cua sov, nws raug nquahu kom siv cov vuam tam sim no me ntsis, kwv yees li 20% tsawg dua qhov uas siv rau cov hlau vuam. Kev tswj xyuas qhov ntev ntawm qhov pom zoo thiab ua kom txias txias ntawm cov txheej nruab nrab thaum ua kom lub vuam seam nqaim yog qhov tseem ceeb.
4. Qhuav ntawm Vuam Rods: Vuam rods siv rau high-pressure luj tshib vuam yuav tsum muab cia rau hauv ib tug qhuav qhov chaw. Titanium-calcium rods yuav tsum tau ziab ntawm 150 degree rau ib teev, thaum qis-hydrogen rods xav tau kom qhuav ntawm 200-250 degree rau ib teev (tsis txhob rov ua kom qhuav, vim nws tuaj yeem ua rau txheej txheej tawg thiab detachment). Tiv thaiv kom tsis txhob muaj kab mob nrog cov roj thiab lwm yam impurities yog qhov tseem ceeb los tswj cov vuam zoo thiab cov ntsiab lus carbon ntawm vuam seam.
Txheej txheem ntau lawm ntawm High-Pressure Luj:
1. Stamping txheej txheem: Stamping muaj ntau lawm efficiency, yooj yim ntawm kev khiav hauj lwm, thiab lub sij hawm rau mechanization thiab automation. Cov txheej txheem no tso siab rau stamping tuag thiab khoom siv rau machining. Cov xovxwm zoo tib yam tuaj yeem ua tiav ntau yam strokes ib feeb, thaum cov xovxwm kub ceev tuaj yeem ncav cuag ntau pua lossis ntau txhiab tus strokes ib feeb, nrog rau txhua tus mob stroke tuaj yeem tsim tau ib feem.
2. Cov Khoom Siv Ua Haujlwm: Stamping feem ntau ua rau cov khoom siv tsawg kawg nkaus thiab tsis muaj nti tsim. Nws yuav tsum tsis muaj cov cuab yeej siv cua sov ntxiv, ua rau nws muaj txiaj ntsig zoo thiab siv zog ua haujlwm.
3. Ntau yam rau Complex Shapes: Stamping tuaj yeem ua haujlwm rau fabricate qhov chaw nrog ntau qhov loj me thiab cov duab nyuaj, ua rau nws tsim nyog rau kev siv xws li cov khoom saib me me mus rau lub tsheb loj chassis thiab lub cev. Tsis tas li ntawd, qhov txias deformation hardening nyhuv ntawm cov khoom txhim khu lub zog thiab rigidity ntawm stamped qhov chaw.
Xaus:
Lub luj tshib siab yog qhov tseem ceeb hauv ntau qhov kev lag luam, ua kom ntseeg tau thiab ua haujlwm zoo ntawm cov kav dej. Ua tib zoo saib xyuas kev ntsuas kev nyab xeeb thaum vuam, nrog rau kev nkag siab ntawm cov txheej txheem tsim khoom, yog qhov tseem ceeb rau kev tsim cov luj tshib zoo uas tuaj yeem tiv taus qhov nruj ntawm cov ntawv thov siab. Ua raws li cov lus qhia no, engineers, manufacturers, thiab cov kws tshaj lij tuaj yeem ntseeg siab ua haujlwm nrog lub luj tshib siab kom muaj kev ncaj ncees thiab kev nyab xeeb ntawm lawv cov kav dej.
