Kev sib tsoo tshuab sab nraud, extrusion, khob thiab yuam kev yuav ua rau tsis muaj kev cuam tshuam, hauv zos folding thiab khoov deformation ntawm titanium cua sov raj. Txoj hauj lwm deformed ua rau muaj kev ntxhov siab loj heev ntawm cov hauv paus hniav. Nyob rau hauv lub sij hawm ntev - lub sij hawm sab hauv siab thiab cyclic thermal load, microcracks germinate thiab txuas mus rau hauv lub deformation cheeb tsam, nws thiaj li nkag mus rau hauv cov yeeb nkab phab ntsa thiab ua rau to los yog yeeb nkab rupture. Xws li kev puas tsuaj feem ntau tshwm sim hauv kev thauj mus los, hoisting, kev teeb tsa hauv teb thiab cov khoom siv txij nkawm, ua rau muaj kev puas tsuaj rau cov txheej txheem kev puas tsuaj nrog pom tseeb morphological tsis xws luag.
1. Deformation thiab Crack Initiation Mechanism
Cov khoom siv titanium muaj qhov zoo ductility ntawm ambient kub. Thaum muaj kev cuam tshuam tam sim ntawm lub zog siab tshaj nws cov kev txwv elastic, cov yeeb nkab phab ntsa yuav tsim cov yas compression tas li deformation thiab tsim cov pits thiab folds. Cov nplej hlau nyob rau hauv qhov chaw concave yog extruded thiab distorted loj heev, ua kom muaj zog tensile siab. Nyob rau tom qab cua sov thiab siab- kev pabcuam kabmob, thermal hloov kev ntxhov siab thiab sab hauv nruab nrab siab tsis tu ncua ua rau kev ntxhov siab- thaj tsam ntawm cov hniav. Me me qaug zog tawg ntho ntawm txoj haujlwm crease thiab nthuav los ntawm cov yeeb nkab phab ntsa nrog kev hloov kub dua. Tsis zoo li creep deformation uas yog qeeb kev puas tsuaj nyob rau hauv ntev -lub sij hawm kub thiab siab, qhov no tsis ua hauj lwm yog tsim los ntawm ib tug los yog ob peb overload sab nraud quab yuam, nrog kev puas tsuaj concentrated nyob rau hauv lub zos deformed cheeb tsam.
2. Tej yam hauj lwm muaj feem cuam tshuam rau deformation
Exposed cantilever yeeb nkab xaus thiab protruding connectors tsis muaj kev tiv thaiv baffles;
Cov kav xa dej tau muab tso rau hauv cov khoom siv, cov kev taug kev thiab nqa cov haujlwm ua haujlwm;
Nyias-cov kav dej titanium uas tsis muaj kev txhawb nqa thaum thauj thiab nqa;
Welded pob qij txha tsis muaj zog rigidity thiab yooj yim rau bending extrusion;
Tsawg- cov kav dej dag tau yooj yim rau dov los ntawm tsheb thiab cuam tshuam los ntawm cov khoom hnyav.
3. Core Inducing Factors Triggering Dent Damage
Tsis muaj ntaub qhwv thiab ruaj khov thaum lub sij hawm xa khoom thiab kev thauj mus los ntawm Hoobkas;
Random khob, prying thiab ua haujlwm ntxhib thaum lub sijhawm ntawm - kho dua tshiab thiab tsim kho;
Tsis muaj kev tiv thaiv - kev sib tsoo guardrails thiab kev ntsuas cais rau cov kav dej hauv thaj chaw neeg taug kev thiab chaw ua haujlwm;
Ntau dhau nyias tsim phab ntsa thickness ua rau tsis zoo los tiv thaiv-extrusion thiab tiv thaiv- cuam tshuam kev ua haujlwm;
Kev kho ib ntus thiab kev tiv thaiv tshem tawm thaum uas nyob ib sab kev tsim kho thiab cov khoom siv disassembly.
4. Tag nrho -Txuas Kev Tiv Thaiv thiab Tswj Kev Ntsuas Kev Ntsuas
① Ntxiv buffer wrapping thiab mob siab kho brackets ua ntej xa khoom
Siv lub tes tsho roj hmab rau qhwv los tiv thaiv kev sib tsoo thiab extrusion ntawm cov yeeb nkab fittings.
② Txhim kho kev tiv thaiv- kev sib tsoo guardrails thiab ceeb toom kev cais tawm rau cov kav xa hluav taws xob
Kos qhov txwv tsis pub muaj kev cuam tshuam rau thaj chaw kom tsis txhob muaj tus txiv neej- ua thiab kev sib tsoo ntawm cov neeg kho tshuab.
③ Tsim cov qauv kev tsim kho kev ua haujlwm tshwj xeeb
Txwv tsis pub ncaj qha rau ntawm cov kav dej titanium; txais cov mos mos gaskets rau kev siv quab yuam thaum lub sij hawm disassembly.
④ Txhim kho kev txhawb nqa rau nyias- cov phab ntsa thiab cov yeeb nkab txuas
Shorten cantilever ntev thiab ntxiv kev txhawb nqa los txhim kho tag nrho cov qauv rigidity.
⑤ Ua qhov kev tshuaj ntsuam xyuas thiab kev ntsuas siab ua ntej ua haujlwm
Hloov cov kav dej uas muaj deformed hnyav thiab tshem tawm cov kev phom sij zais cia ntawm cov dents stress concentration.
5. Kev Tiv Thaiv Cov Teeb Meem Sib piv
表格
| Kev tiv thaiv & tswj hom | Impact Denting Failure Risk | Daim ntawv thov tswv yim |
|---|---|---|
| Tsis muaj kev tiv thaiv ntim khoom + nthuav tawm layout yam tsis muaj kev sib cais | Muaj feem ntau ntawm indentation deformation hauv kev thauj mus los thiab kev tsim kho | Ntxiv los tiv thaiv- kev tiv thaiv kev sib tsoo thiab ntxiv dag zog rau kev tswj hwm qhov chaw tam sim ntawd |
| Tag nrho - txheej txheem ntim fixation + ntawm - ceeb toom ntawm qhov chaw cais + kev tsim qauv | Ua tau zoo kom tsis txhob raug kev puas tsuaj rau txhua yam | Yuav tsum muaj tus qauv rau lub Hoobkas xa khoom thiab kev teeb tsa |
| Kev txhawb nqa hauv zos + kev soj ntsuam xyuas tsis tu ncua + ua ntej- kev ua haujlwm tsis zoo | Tsawg kawg zais deformation txaus ntshai | Cov phiaj xwm kev tiv thaiv nyiam rau cov txheej txheem tseem ceeb ntawm titanium cua sov kav |
Xaus
denting thiab folding tsis ua hauj lwm ntawm titanium cua sov raj yog tshwm sim los ntawm sab nraud concentrated quab yuam tshaj cov khoom elastic bearing muaj peev xwm, ua rau cov yas deformation thiab residual stress concentration, uas induces tawg expansion nyob rau hauv kev pab cuam load. Kev tiv thaiv tseem ceeb txhais tau hais tias npog tag nrho - kev tiv thaiv saw hlau los ntawm lub Hoobkas ntim khoom, txhim kho kev thauj mus los rau ntawm - kev tswj hwm qhov chaw cais, ua kom zoo dua cov kav dej rigidity thiab tswj tus cwj pwm kev tsim kho. Tag nrho - txheej txheem kev tiv thaiv thiab kev soj ntsuam xyuas tuaj yeem tshem tawm cov kev pheej hmoo ntawm kev xau los ntawm kev ua txhaum kev sib tsoo ntawm cov titanium cua sov raj.
