1. Cia
Cov khoom tungsten thiab molybdenum yog ib qho yooj yim rau oxidize thiab hloov xim, yog li lawv yuav tsum tau muab cia rau hauv ib puag ncig nrog cov av noo qis dua 60%, qhov kub siab tshaj 28 ° C, thiab cais los ntawm lwm yam tshuaj.
Cov oxides ntawm tungsten thiab molybdenum cov khoom yog soluble hauv dej thiab yog acidic, thov xyuam xim!
2. Cov pa phem embrittlement
(1) Thaum kub kub (ze rau lub melting point ntawm cov hlau), nws yuav hnov mob nrog rau lwm yam hlau (hlau thiab nws alloys, npib tsib xee thiab nws alloys, thiab lwm yam), tej zaum yuav ua rau embrittlement ntawm cov khoom.Thaum ua kev kho cua sov ntawm tungsten thiab molybdenum cov khoom, yuav tsum tau them nyiaj mloog!
Kev kho cua sov yuav tsum tau ua hauv lub tshuab nqus tsev (hauv qab 10-3Pa), txo qis (H2) lossis roj inert (N2, Ar, thiab lwm yam) cua.
(2) Cov khoom tungsten thiab molybdenum yuav dhau los ua cov pa roj carbon monoxide, yog li tsis txhob kov lawv thaum kho cua sov ntawm qhov kub siab tshaj 800 ° C.Tab sis cov khoom molybdenum qis dua 1500 ℃, qib ntawm embrittlement tshwm sim los ntawm carbonization tsawg heev.
3. Machining
(1) dabtsi yog khoov, xuas nrig ntaus, shearing, txiav, thiab lwm yam ntawm tungsten-molybdenum phaj cov khoom yog nquag ua rau tawg thaum ua tiav ntawm chav tsev kub, thiab yuav tsum tau rhuab.Nyob rau tib lub sijhawm, vim yog kev ua haujlwm tsis raug, qee zaum delamination tshwm sim, yog li kev ua cua sov tau pom zoo.
(2) Txawm li cas los xij, cov phaj molybdenum yuav ua nkig thaum rhuab saum 1000 ° C, uas yuav ua rau nyuaj rau kev ua, yog li yuav tsum tau them nyiaj mloog.
(3) Thaum mechanically sib tsoo cov khoom tungsten thiab molybdenum, nws yog ib qho tsim nyog los xaiv txoj kev sib tsoo uas haum rau ntau lub sijhawm.
4. Oxide tshem tawm txoj kev
(1) tungsten thiab molybdenum khoom yog yooj yim rau oxidize.Thaum hnyav oxides yuav tsum tau muab tshem tawm, thov tso siab rau peb lub tuam txhab lossis kho nrog cov kua qaub muaj zog (hydrofluoric acid, nitric acid, hydrochloric acid, thiab lwm yam), thov ua tib zoo saib thaum ua haujlwm.
(2) Rau cov oxides me me, siv cov tshuaj ntxuav nrog cov abrasives, so nrog cov ntaub mos muag lossis daim txhuam cev, thiab tom qab ntawd yaug nrog dej sov.
(3) Thov nco ntsoov tias cov hlau nplaum yuav ploj tom qab ntxuav.
5. Ceev faj rau kev siv
(1) Daim ntawv tungsten-molybdenum yog ntse li riam, thiab cov burrs ntawm cov ces kaum thiab lub ntsej muag kawg yuav txiav tes.Thaum siv cov khoom, thov hnav cov khoom tiv thaiv.
(2) Qhov ceev ntawm tungsten yog li 2.5 npaug ntawm cov hlau, thiab qhov ceev ntawm molybdenum yog li 1.3 npaug ntawm cov hlau.Qhov tseeb qhov hnyav hnyav dua li qhov pom, yog li kev tuav tuav yuav ua mob rau tib neeg.Nws raug nquahu kom ua kev tuav haujlwm thaum qhov hnyav qis dua 20KG.
6. Ceev faj rau kev tuav
Cov khoom tungsten thiab molybdenum ntawm cov tuam txhab molybdenum phaj yog cov hlau nkig, uas ua rau tawg thiab delamination;Yog li ntawd, thaum thauj, ceev faj tsis txhob siv kev poob siab thiab kev vibration, xws li poob.Tsis tas li ntawd, thaum packing, thov sau nrog cov khoom poob siab.
Post lub sij hawm: Feb-20-2023