Ntawm qhov kub thiab txias, titanium yog qhov ua rau cov khoom muaj nyob hauv huab cua xws li O, H, N, thiab cov khoom hauv cov khoom siv kos xws li Si, Al, Mg. Cov tshuaj tiv thaiv no tsim ib txheej txheej paug ntawm qhov casting, deteriorating nws cov khoom. Qhov no yuav ua rau muaj zog ntxiv, txo elasticity, thiab nce brittleness.
Vim nws qhov qis qis, titanium cov kua muaj tsawg inertia thaum ntws, ua rau cov neeg tsis zoo thiab tsawg nrum tus nqi. Qhov sib txawv ntawm qhov kub thiab txias (kwv yees li 300 degree) ntawm qhov kub thiab txias pwm ua rau txias txias thaum lub sij hawm casting. Casting nyob rau hauv ib puag ncig tiv thaiv, titanium castings inevitably muaj qhov tsis xws luag xws li pores ntawm lawv qhov chaw thiab sab hauv, cuam tshuam qhov zoo ntawm cov casting.
Yog li ntawd, kev kho deg rau titanium castings yog qhov tseem ceeb dua piv rau lwm cov alloys. Vim tias titanium cov khoom tshwj xeeb xws li thermal conductivity tsawg, qhov tawv tawv, tsis tshua muaj elasticity, siab viscosity, tsis tshua muaj hluav taws xob conductivity, thiab susceptibility rau oxidation, kev kho deg ua rau muaj teeb meem loj. Cov txheej txheem kev kho saum npoo yuav tsis ua tiav qhov kev xav tau, yuav tsum tau ua cov txheej txheem tshwj xeeb thiab cov txheej txheem ua haujlwm.
Txoj kev ntxuav
Sandblasting
Rau titanium castings, kev kho sandblasting ntxhib feem ntau yog qhov zoo dua. Lub blasting siab feem ntau tswj hauv qab no 0.45 MPa. Lub siab blasting ntau dhau tuaj yeem ua rau muaj kev kub ntxhov thaum cov xuab zeb tuaj yeem cuam tshuam rau titanium nto, ua rau muaj qhov kub thiab txias thiab muaj peev xwm tshwm sim nrog titanium nto, ua rau muaj kuab paug thib ob thiab cuam tshuam rau saum npoo zoo.
Acid Ntxuav
Kev ntxuav cov kua qaub muaj peev xwm sai thiab tshem tawm tag nrho cov tshuaj tiv thaiv txheej txheem yam tsis qhia cov kab mob sib kis los ntawm lwm cov khoom mus rau saum npoo.
Sib tsoo thiab polishing
Mechanical sib tsoo
Titanium cov tshuaj muaj zog heev, tsis tshua muaj thermal conductivity, thiab siab viscosity ua rau tsis tshua muaj kev sib tsoo thiab txiav efficiency thaum lub sij hawm sib tsoo tshuab. Cov abrasives tsis tu ncua tsis haum rau titanium kev sib tsoo thiab polishing. Nws yog qhov zoo tshaj plaws los siv cov thermally conductive superabrasives zoo li pob zeb diamond. Txoj kab polishing ceev feem ntau yog li ntawm 900 txog 1800m / min kom tiv thaiv kev sib tsoo ntawm qhov kub thiab microcracks ntawm titanium nto.
Ultrasonic sib tsoo
Ultrasonic vibration ua rau cov txheeb ze
txav ntawm cov nplej abrasive thiab nto
yog polished los yog hauv av, yooj yim rau kev sib tsoo thiab
polishing txheej txheem.
Electrochemical Mechanical Compound Sib Tsoo
Txoj kev no siv cov khoom siv hluav taws xob nrog rau cov khoom siv hluav taws xob thiab cov hluav taws xob hluav taws xob nruab nrab ntawm cov abrasive thiab saum npoo. Los ntawm kev ua ke txhua yam thiab electrochemical, nws txo qhov roughness thiab txhim kho qhov glossiness.
Barrel Sib tsoo
Siv lub zog centrifugal tsim los ntawm kev sib hloov thiab kiv puag ncig ntawm lub thoob sib tsoo, tso cai rau kev sib txhuam ntawm lub thoob cov ntsiab lus thiab cov abrasives kom txo tau qhov roughness. Txoj kev no yog automated thiab npaum tab sis tsuas yog txo qhov roughness thiab tsis txhim kho nto glossiness.
Tshuaj Polishing
Ua tiav qib thiab polishing los ntawm oxidation-txo cov tshuaj tiv thaiv ntawm cov hlau hauv cov tshuaj nruab nrab. Tshuaj polishing tsis yog nyob ntawm cov hlau hardness, polished cheeb tsam, los yog cov qauv zoo. Nws tsis xav tau cov cuab yeej siv yooj yim thiab yooj yim rau kev khiav lag luam.
