Dab tsi yog Cov Cheebtsam ntawm Hmoov Metallurgy?

Lub hauv paus tseem ceeb ntawm cov hmoov metallurgy
Hmoov metallurgy yog txheej txheem thev naus laus zis uas siv cov hmoov hlau (lossis sib xyaw ntawm cov hmoov hlau thiab tsis yog{0}} cov hmoov hlau) ua cov khoom siv raw los tsim cov khoom los ntawm kev tsim, sintering, thiab lwm yam txheej txheem. Cov khoom tseem ceeb tuaj yeem muab faib ua ob pawg:
Hlau matrix hmoov
• Hlau raws li cov ntaub ntawv: Pure hlau hmoov thiab hlau alloy steel hmoov (xws li chromium molybdenum steel hmoov thiab npib tsib xee chromium steel hmoov) yog cov khoom siv feem ntau siv matrix, nrog tus nqi qis thiab ntau yam khoom siv kho kom haum. Lawv feem ntau yog siv rau hauv kev tsim cov khoom siv kho tshuab, lub zog, thiab lwm yam.
• Copper raws li: ntshiab tooj liab hmoov, bronze hmoov, tooj dag hmoov, nrog zoo conductivity, thermal conductivity, thiab corrosion kuj, feem ntau siv nyob rau hauv zus tau tej cov roj uas muaj bearings, hluav taws xob tiv tauj, thiab lwm yam.
• Lwm yam hlau: hmoov xws li txhuas raws, titanium raws li, npib tsib xee raws, thiab lwm yam, siv rau tshwj xeeb scenarios xws li lub teeb yuag Cheebtsam, siab - kub thiab corrosion- resistant qhov chaw, thiab siab - kawg aerospace Cheebtsam.
Ntxiv
• Lubricants/forming agents: xws li zinc stearate thiab paraffin wax, siv los txhim kho cov flowability thiab formability ntawm hmoov, thiab yuav tag nrho evaporate thaum lub sij hawm sintering.
• Cov hmoov hlau alloy, xws li cov hmoov carbon, manganese hmoov, thiab molybdenum hmoov, yog siv los kho cov khoom siv ntawm cov khoom siv matrix, xws li nce lub zog, hardness, los yog hnav tsis kam.
• Cov theem uas tsis yog xim hlau ntxiv dag zog, xws li graphite hmoov thiab ceramic hais (alumina, silicon carbide), yog siv los txhim kho tus kheej -lubricating zog, hardness, los yog kub tsis kam ntawm cov khoom.

Piv txwv ntawm Composition rau Hom Hmoov Metallurgy Khoom

• Hlau raws li cov khoom siv: hlau hmoov (90% -98%) + graphite hmoov (0.5% -2%) + tooj liab hmoov (1% -5%) + ib qho me me ntawm cov roj nplua nyeem.
• Copper raws roj bearing: Bronze hmoov (90% -}95%) + graphite hmoov (5% -10%), porosity tuaj yeem ncav cuag 15% -30%, tuaj yeem khaws cov roj lubricating thiab ua tiav nws tus kheej lubricating.
• Hard alloy: tungsten carbide hmoov (80% -}95%) + cobalt hmoov (5% -20%), cobalt ua raws li lub sij hawm sib txuas rau daim ntawv cog lus tungsten carbide hais, muaj ultra-siab hardness thiab hnav tsis kam.

Raws li cov kws tshaj lij cov chaw tsim khoom tau koom tes nrog kev ua haujlwm ntawm cov hmoov metallurgy rau ntau xyoo, peb lub tuam txhab tsom mus rau kev tshawb fawb thiab kev tsim kho, kev tsim khoom, thiab kev muag khoom.sintered hmoov metallurgy qhov chaw . Peb tuaj yeem hloov kho siab - cov khoom ua tau zoo ntawm cov khoom sib txawv thiab cov lus qhia tshwj xeeb raws li cov neeg siv khoom xav tau, thiab hloov kho rau ntau yam xws li lub cev muaj zog, cov khoom siv hauv tsev, thiab cov khoom siv tsheb. Nrog rau cov khoom siv ntau lawm, kev tswj xyuas nruj, thiab kev lag luam nplua nuj, peb ib txwm muab cov kev daws teeb meem txhim khu kev qha rau cov neeg koom tes thoob ntiaj teb nrog cov khoom lag luam ruaj khov thiab kev xa khoom zoo. Zoo siab txais tos hu rau peb thiab peb tos ntsoov yuav ua haujlwm nrog koj kom yeej- yeej qhov xwm txheej.