Qhov zoo ntawm lsaw cev
Nws tuaj yeem rhuav tshem cov qauv ingot casting, kho cov nplej ntawm cov hlau, thiab tshem tawm qhov tsis xws luag ntawm microstructure, kom cov qauv hlau ntom ntom thiab cov khoom siv kho kom zoo tuaj. Qhov kev txhim kho no feem ntau yog tshwm sim hauv cov kev taw qhia dov, kom cov yeeb nkab lsaw steel tsis yog lub cev isotropic rau qee yam; npuas, tawg thiab looseness tsim thaum lub sij hawm pouring kuj yuav welded nyob rau hauv kub thiab siab.

Disadvantages ntawm lsaw steel yeeb nkab
1. Kev ntxhov siab uas tshwm sim los ntawm qhov tsis sib xws. Residual stress yog qhov kev ntxhov siab ntawm tus kheej-theem equilibrium nyob rau hauv tsis muaj lwm yam quab yuam. Kub dov hlau ntawm ntau seem muaj xws li residual stress. Qhov loj dua qhov loj ntawm cov hlau dav dav, qhov ntau dua qhov kev ntxhov siab seem. Txawm hais tias qhov seem ntawm kev ntxhov siab yog qhov sib npaug ntawm tus kheej, nws tseem muaj qee qhov cuam tshuam rau kev ua haujlwm ntawm cov khoom siv hlau nyob rau hauv sab nraud rog. Piv txwv li, nws yuav muaj kev cuam tshuam tsis zoo rau deformation, stability, thiab qaug zog ua hauj.

2. Tom qab vuam, cov khoom tsis yog xim hlau suav nrog hauv lsaw steel yeeb nkab yog nias rau hauv nyias nyias, thiab qhov tshwm sim delamination tshwm sim. Lub delamination zoo heev degrades cov khoom ntawm lsaw steel yeeb nkab nyob rau hauv thickness kev taw qhia, thiab tej zaum yuav shrinkage ntawm weld seam. Interlaminar tearing tshwm sim. Cov kab mob hauv zos uas raug cuam tshuam los ntawm weld shrinkage feem ntau nce mus txog ob peb zaug ntawm qhov tawm los, uas yog ntau dua li cov kab mob tshwm sim los ntawm kev thauj khoom.