Hard alloy pwm, hu ua "niam ntawm kev lag luam," ua lub luag haujlwm tseem ceeb hauv kev tsim khoom niaj hnub no.Tab sis cov pwm tuaj ua li cas, thiab thaum twg lawv tuaj?
(1) Kev Txhim Kho Cov Khoom Siv Hluav Taws Xob raws li Social Foundation rau Pwm Tsim
Kev siv cov pwm yog tsom rau replicating cov khoom ntawm tib lub cev, yog li txhim kho kev tsim khoom thiab zoo.Ib tug ntawm cov founders ntawm Marxism, Friedrich Engels, ib tug German philosopher, thinker, thiab revolutionary, ib zaug hais tias, "Ib zaug muaj kev xav tau kev pab nyob rau hauv lub zej zog, qhov kev xav tau no yuav tsav kev tshawb fawb mus rau ntau tshaj kaum lub tsev kawm ntawv."Thaum tib neeg mus txog ib theem ntawm txoj kev loj hlob thiab tib neeg muaj qhov kev thov tseem ceeb rau kev siv cov khoom zoo ib yam, nruab nrog cov cuab yeej siv thiab cov cuab yeej siv, cov pwm tuaj yeem tshwm sim.
(2) Kev Tshawb Fawb thiab Kev Siv Tooj Liab ua cov khoom siv rau kev tsim cov pwm tsim nyuaj.
Qee cov kws tshawb fawb ntseeg tias qhov tseeb yug ntawm pwm tshwm sim thaum lub hnub nyoog Bronze, kwv yees li 5000 txog 7000 xyoo dhau los.Lub sijhawm no tau hloov pauv ntawm kev siv tooj liab los ua cov khoom tseem ceeb rau kev tsim ntau yam khoom siv, cov khoom siv niaj hnub, thiab riam phom, xws li tooj liab iav, lauj kaub, thiab ntaj.Nyob rau lub sijhawm no, cov xwm txheej tseem ceeb rau kev tsim cov pwm tawv tawv tau tshwm sim, suav nrog kev siv tshuab metallurgical, ntau lawm, thiab kev cob qhia ua haujlwm.Txawm li cas los xij, pwm tsim tawm thaum lub sijhawm no tseem nyob hauv nws cov me nyuam mos thiab deb ntawm kev paub tab.
Qhov tshwm sim ntawm pwm tau cim lub ntsiab lus tseem ceeb hauv tib neeg keeb kwm, hloov pauv cov txheej txheem tsim khoom thiab txhawb nqa zej zog rau kev nce qib thev naus laus zis thiab nce kev tsim khoom.Los ntawm cov hnub nyoog, kev txhim kho thiab kho cov pwm tau txuas ntxiv mus rau ntau yam kev lag luam, ua rau lub ntiaj teb hloov zuj zus mus rau niaj hnub tsim khoom. "
Kev ua tau zoo ntawm cov khoom siv tawv tawv pwm suav nrog cov khoom siv kho tshuab, cov khoom kub kub, cov khoom nto, kev ua haujlwm, thiab cov khoom lag luam, thiab lwm yam.Ntau hom pwm muaj kev ua haujlwm sib txawv, uas ua rau muaj qhov txawv txav ntawm cov khoom siv.
1. Rau cov pwm ua haujlwm txias, siab hardness, lub zog, thiab hnav tsis kam yog qhov tseem ceeb.Tsis tas li ntawd, lawv yuav tsum muaj siab compressive zog, zoo toughness, thiab qaug zog kuj.
2. Nyob rau hauv cov ntaub ntawv ntawm kub ua hauj lwm nyuaj alloy pwm, dua li cov ambient kub cov khoom, lawv yuav tsum tau muaj zoo heev corrosion kuj, tempering stability, high-temperature oxidation kuj, thiab kub qaug zog kuj.Nws tseem yuav tsum tau hais tias lawv muaj ib tug me me thermal expansion coefficient thiab zoo thermal conductivity.
3. Cov pwm kab noj hniav saum npoo yuav tsum muaj qhov nyuaj txaus thaum tuav ob qho tib si toughness thiab hnav tsis kam.
Lub siab tuag-casting pwm ua haujlwm nyob rau hauv cov xwm txheej hnyav, xav tau cov pwm tawv tawv kom muaj kev hnav zoo heev, tiv taus kub, compressive zog, thiab oxidation tsis kam, thiab lwm yam khoom.
Post lub sij hawm: Aug-02-2023
