Titanium rodsthiab titanium alloy billets muaj cov thermal conductivity tsawg, uas ua rau muaj qhov sib txawv ntawm qhov kub thiab txias ntawm cov txheej txheej sab hauv thaum kub extrusion. Thaum lub extrusion lub tog raj kheej kub yog 400 degrees Celsius, qhov kub no txawv yuav ncav cuag 200-250 degrees Celsius. Raws li kev sib xyaw ua ke ntawm kev nqus roj ntxiv thiab qhov sib txawv ntawm qhov kub thiab txias nyob rau hauv qhov sib txawv ntawm qhov billet, cov hlau ntawm qhov chaw thiab hauv nruab nrab ntawm lub billet nthuav tawm qhov sib txawv ntawm lub zog thiab plasticity. Qhov no ua rau muaj qhov tsis sib xws thaum lub sij hawm extrusion, ua kom muaj zog ntxiv tensile kev nyuaj siab nyob rau hauv txheej txheej, uas yog lub hauv paus ua rau tawg thiab fissures nyob rau saum npoo ntawm cov khoom extruded.Qhov kub extrusion txheej txheem ntawm titanium rods thiab titanium alloy rods yog complex tshaj li ntawm txhuas alloys, tooj liab alloys, los yog txawm hlau. Qhov no yog vim qhov tshwj xeeb physicochemical zog ntawm titanium rods thiab titanium alloy rods.
Kev tshawb fawb ntawm cov ndlwg dynamics ntawm industrial titanium alloys qhia tau hais tias cov ndlwg tus cwj pwm ntawm cov hlau sib txawv heev nyob rau hauv qhov kub thiab txias sib xws rau txawv theem xeev ntawm txhua alloy. Yog li ntawd, ib qho ntawm cov ntsiab lus tseem ceeb cuam tshuam rau extrusion ntws cov yam ntxwv ntawm titanium tuav thiab titanium alloy tuav yog lub billet cua sov kub, uas txiav txim siab theem transformation xeev ntawm cov hlau. Extrusion ntawm qhov kub thiab txias hauv cheeb tsam + P theem ua rau cov hlau tsis sib xws ntau dua piv rau extrusion ntawm qhov kub thiab txias hauv theem theem. Ua kom tiav qhov zoo ntawm cov khoom siv extruded yog qhov nyuaj heev. Tam sim no, lubricants yuav tsum tau nyob rau hauv cov txheej txheem extrusion ntawm titanium alloy tuav. Qhov laj thawj tseem ceeb rau qhov no yog tias titanium, ntawm qhov kub ntawm 980℃thiab 1030 degree, tsim cov fusible eutectic nrog hlau-raws li lossis npib tsib xee-raws li alloy tuag cov ntaub ntawv, ua rau hnyav tuag hnav.
Yam tseem ceeb cuam tshuam rau cov hlau ntws thaum extrusion:
1) Extrusion txoj kev. Rov qab extrusion ua rau cov hlau tsis sib xws ntau dua li pem hauv ntej extrusion; txias extrusion ua rau cov hlau tsis sib xws ntau dua li kub extrusion; lubricated extrusion ua rau cov hlau tsis sib xws ntau dua li tsis muaj lub tshuab extrusion. Cov nyhuv ntawm txoj kev extrusion yog ua tiav los ntawm kev hloov pauv hauv kev sib txhuam.
2) Extrusion ceev. Ua kom extrusion ceev exacerbates qhov tsis yog - sib xws ntawm hlau ntws.
3) Extrusion kub. Kev kub siab extrusion ntau dua thiab qis dua billet deformation kuj exacerbate tsis yog -cov hlau tsis sib xws. Thaum lub sij hawm extrusion, yog tias qhov kub thiab txias ntawm lub tog raj kheej extrusion thiab tuag tsawg dhau lawm, qhov kub thiab txias sib txawv ntawm cov txheej txheej sab hauv thiab sab hauv ntawm cov hlau ua rau qhov tsis sib xws ntawm cov hlau ntws. Qhov zoo dua qhov thermal conductivity ntawm cov hlau, qhov sib txawv ntawm qhov kub thiab txias ntawm qhov kawg ntawm lub ntsej muag.
4) Hlau zog. Nyob rau tib lub sijhawm, cov hlau muaj zog dua ua rau cov hlau tsis sib xws ntau dua.
5) Lub kaum sab xis tuag. Lub kaum sab xis loj dua (lub kaum sab xis nruab nrab ntawm lub ntsej muag tuag thiab lub hauv paus axis) ua rau ntau dua cov hlau tsis sib xws. Thaum siv ntau hom- qhov tuag extrusion txoj kev, qhov tsim nyog tuag qhov kev npaj ua rau cov hlau zoo sib xws.
6) Qib deformation. Yog hais tias qhov℃ntawm deformation loj dhau los yog me me, cov hlau ntws yuav tsis sib npaug.
Baoji Reliab Metal Materials Co., Ltd
Txawb: 0086 13092900605
Lub Chaw Muag Khoom 1: WhatsApp +8613092900605 (Mr.Gary)
Chaw Muag Khoom 2: +8613092913521(Ms. Sophia)
Chaw nyob: No.35 Baoti Rd, Weibin District, Baoji, Suav
