Dab tsi yog qhov zoo thiab qhov tsis zoo ntawm titanium pas nrig extrusion txheej txheem?

Titanium rods tuaj yeem ua tiav siv cov txheej txheem extrusion thiab yas deformation ntawm txoj kev extrusion. Txhawm rau muab cov titanium alloy dawb paug zoo plasticity, nws yog thawj rhuab mus rau qhov kub thiab txias. Lub rhuab billet yog ces muab tso rau hauv lub extruder, qhov twg nws yog extruded los ntawm lub taub hau extrusion mus rau hauv lub tuag channel los tsim cov yam xav tau titanium pas nrig nyob rau hauv nws zaum kawg cov duab thiab loj. Kev sib piv thiab cov txheej txheem txav mus, lub tswv yim tshem tawm tuaj yeem yooj yim khaws nrog cov qauv nplej thiab cov khoom siv ntawm titanium ua ke.

Titanium rods yog ua tiav siv txoj kev dov, uas muaj kev txuas ntxiv dov thiab yas deformation. Pib nrog, titanium sib xyaw ua ke ntshiab yog sov kom haum rau qhov kub thiab txias kom nws muaj peev xwm ua tau zoo. Tom qab ntawd, cov khoom ua kom sov yog saib xyuas rau hauv cov nroj tsuag txav, thiab tom qab sib txawv dov thiab nthuav cov txheej txheem, titanium bar ntawm qhov xav tau dav thiab ntev yog nyob rau qhov kawg tau txais. Titanium rods ntawm qhov ntau thiab tsawg thiab cov khoom tuaj yeem tsim tau thaum lub sij hawm dov txheej txheem los ntawm kev tswj dov quab yuam thiab kub.

Kev tshem tawm tuav ntawm titanium tuav, titanium cylinders thiab titanium xov hlau yog cov txheej txheem hlau tuav. Kev sib piv thiab lwm yam kev tuav cov yas (xws li dov, thiab lwm yam), cov txiaj ntsig tseem ceeb ntawm kev tshem tawm cov tswv yim rau kev tshem tawm yog:

1. Kev ua haujlwm siab ntau lawm yog ib qho txiaj ntsig ntawm titanium pas nrig, titanium raj, thiab titanium hlau extrusion ua. Hlau uas tuaj yeem tiv taus cov yas loj deformations ib txhij thiab muaj zog compressive lub xeev ntawm peb qhov ntev thaum extruded tuaj yeem ua tiav rau cov ntaub ntawv uas nyuaj rau deform thiab tsis tshua muaj plasticity. Nws tuaj yeem tsim cov kav dej thiab cov yeeb yaj kiab nrog cov ntu ntu ntu thiab cov ntu sib txawv. Cov khoom no yog ib qho nyuaj lossis txawm tias tsis yooj yim sua los ntawm lwm txoj hauv kev. Cov txheej txheem tshem tawm cov txheej txheem tuaj yeem ua rau cov ntaub ntawv titanium sai sai rau hauv cov duab zoo tagnrho, tom qab ntawd ntxiv kev tsim cov khoom tsim tau thiab txo cov nqi sib dhos. Tsis tas li ntawd, kev tshem tawm kev tuav pov hwm tuaj yeem ua tiav ntau lub voj voog hauv ib lub voj voog, ntxiv kev tsim cov txiaj ntsig zoo.

2. Extrusion ua kuj tuaj yeem muab cov khoom zoo heev. Thaum lub sij hawm tshem tawm kev sib cuam tshuam, titanium cov ntaub ntawv yog nthuav tawm thaj tsam ntawm lub zog rau, uas refines lawv cov nplej thiab hloov kho lawv cov khoom siv kho tshuab. Qhov kev poob qis no nthuav tawm cov khoom sib koom ua ke, hardness thiab yaig kev cuam tshuam, ua rau nws muaj kev cia siab ntau dua thiab tawv hauv cov ntawv siv niaj hnub sib txawv. Kev sib cuam tshuam kwj yog qhov yooj yim, lub iav speculation yog me ntsis, thiab nws yog feem ntau yooj yim rau computerize lub voj voog tsim.

3. Extrusion ua kuj tseem paub txog kev tsim cov duab nyuaj thiab muaj kev ua haujlwm zoo heev. Ib qho khoom siv tuaj yeem tsim cov khoom ntawm ntau ntau yam thiab cov kev qhia tshwj xeeb, thiab cov khoom hloov pauv tau yooj yim. Cov khoom muaj meej qhov ntev, qhov zoo ntawm qhov chaw thiab zoo tag nrho zoo. Titanium rods, titanium tubes thiab titanium xov hlau yuav extruded rau hauv ntau yam complex duab, xws li tshwj xeeb-shaped seem, nyias-walled lug, thiab lwm yam.

Piv nrog rau lwm cov txheej txheem yas (xws li dov, thiab lwm yam), lub ntsiab tsis zoo ntawm txoj kev extrusion ntawm titanium pas nrig, titanium raj thiab titanium hlau extrusion ua yog:

1. Cov khoom siv hluav taws xob tsawg tsawg. Nyob rau hauv ib lub voj voog extrusion, muaj ntau cov txheej txheem pabcuam, uas siv sijhawm ntev thiab cov khoom tsim tau qis dua li ntawm dov.

2. Qhov poob ntawm cov hlau ruaj khov yog qhov loj thiab cov txiaj ntsig qis. Lub siab seem tshuav nyob rau qhov kawg ntawm extrusion thiab qhov kawg ntawm extrusion yog ruaj losses, thiab residual siab ib leeg account rau 10% mus rau 15% ntawm cov billet zoo. Thaum lub sij hawm rau pem hauv ntej extrusion, vim hais tias qhov ntev ntawm qhov khoob yog txwv (feem ntau qhov piv ntawm qhov ntev mus rau txoj kab uas hla ntawm qhov khoob tsis pub tshaj 3 ~ 4), thiab qhov seem seem poob siab tsis tuaj yeem txo los ntawm kev nce qhov ntev ntawm qhov khoob, yield tsawg.

3. Cov cuab yeej siv yog loj. Qhov zoo tshaj plaws ntawm txoj kev extrusion yog kev ua haujlwm siab, uas tuaj yeem ncav cuag 10 npaug ntawm cov hlau deformation tsis kam. Lub siab ntawm lub tshuab nyem qhov nruab nrab yog 400 ~ 800MPa, qee zaum ncav cuag 1000MPa lossis siab dua. Nyob rau hauv qhov kev txiav txim ntawm qhov kub thiab txias, kev ntxhov siab thiab kev sib txhuam siab, kev pabcuam lub neej ntawm cov cuab yeej extrusion yog qis dua li ntawm cov menyuam, thiab cov cuab yeej siv tau ntau dua.

4. Cov khoom ua haujlwm tsis sib xws. Thaum lub sij hawm extrusion, vim uneven deformation ntawm lub puab thiab txheej txheej ntawm lub billet thiab pem hauv ntej thiab nram qab kawg, cov qauv thiab cov khoom raws li ntev thiab kawg lub ntsej muag ntawm cov khoom yog unevenly.

Txoj kev extrusion yog tsim rau kev tsim cov hlau tsis-ferrous, rods, profiles thiab hlau blanks nyob rau hauv me me batch thiab nrog ntau yam thiab specifications. Extrusion txheej txheem muaj cov kev xav tau siab ntawm cov khoom siv raw, thiab cov ntaub ntawv titanium alloy nrog cov khoom zoo thiab cov yas yuav tsum tau xaiv. Tsis tas li ntawd, qhov tsis xws luag sab hauv thiab qhov chaw tsis xws luag tuaj yeem tshwm sim thaum lub sijhawm extrusion txheej txheem, uas yuav tsum tau ua tom ntej thiab tshuaj xyuas. Rau cov kav dej thiab cov ntaub ntawv nrog cov ntsej muag kawg lossis cov phab ntsa nyias, cov kav dej ultra-thick-walled nrog qhov sib piv ntawm txoj kab uas hla mus rau phab ntsa thickness mus txog 2, thiab nkig tsis-ferrous hlau thiab cov ntaub ntawv tshwj xeeb steel, extrusion yog tib txoj kev ua haujlwm siab.