Ntshiab tungsten hlauyog ib qho ntawm ntau cov khoom tungsten. Tungsten yog cov hlau tsis-ferrous thiab cov hlau tseem ceeb. Tungsten ore tau hu ua "lub pob zeb hnyav" nyob rau hauv ancient sij hawm. Nyob rau hauv 1781, Swedish chemist Carl William Scheele nrhiav tau scheelite thiab rho tawm ib tug tshiab elemental acid - tungstic acid. Xyoo 1783, Spanish Depuria nrhiav pom wolframite thiab rho tawm tungstic acid. Nyob rau hauv tib lub xyoo, Qhov txo ntawm tungsten trioxide nrog cov pa roj carbon yielded tungsten hmoov thawj zaug thiab lub npe lub caij. Cov ntsiab lus ntawm tungsten nyob rau hauv lub ntiaj teb crust yog 0.001%. Muaj 20 hom tungsten-muaj cov zaub mov uas tau tshawb pom. Tungsten deposits feem ntau yog tsim nrog cov kev ua ntawm granite magma. Tom qab smelting, tungsten yog ib tug silvery-dawb ci hlau nrog ib tug heev melting point thiab siab hardness. Tungsten yog cov hlau nrog qhov siab tshaj plaws melting point. tungsten hlau embodies tus yam ntxwv ntawm tungsten.
Tungsten yog cov hlau tsis muaj hlau. Feem ntau cov tib neeg faib cov hlau ua ob pawg raws li lawv cov xim thiab cov khoom: ferrous hlau thiab non-ferrous hlau. Ferrous hlau tsuas yog xa mus rau hlau, manganese, chromium thiab lawv cov alloys, xws li hlau, npua hlau, ferroalloy, cam khwb cia hlau, thiab lwm yam. Cov hlau uas tsis yog ferrous hlau yog hu ua non-ferrous hlau. Tungsten belongs rau qeb ntawm non-ferrous hlau. Lub zog thiab hardness ntawm non-ferrous alloys feem ntau yog siab dua cov hlau ferrous, lawv kuj yog siab dua li cov hlau ferrous, lawv kub coefficient ntawm kuj yog me me, thiab lawv muaj zoo txhua yam khoom. Yog li ntawd, raws li ib tug non-ferrous hlau, tungsten muaj zog heev thiab hardness. Vim hais tias ntawm tus yam ntxwv no, tungsten carbide nrog siab hardness thiab muaj zog hnav tsis kam yog dav siv hauv cov cuab yeej txiav thiab cov cuab yeej mining. Tungsten hlau kuj yog ib qho ntawm cov khoom siv hlau nyuaj.
1. Tshuaj muaj pes tsawg leeg
|
Qib |
W cov ntsiab lus min,% |
Tag nrho impurity ntsiab max,% |
Txhua yam max,% |
|
W1 |
99.95 |
0.05 |
0.01 |
|
W2 |
99.92 |
0.08 |
0.01 |
2. Specification
|
Txoj kab uas hla, mm |
Txoj kab uas hla telorance,% |
Qhov hnyav (200mm), mg |
Ntev min, m |
|
0.012−0.06 |
- |
>0.44−10.91 |
700 |
|
0.06−0.1 |
- |
>10.91−30.30 |
400 |
|
0.1−0.15 |
-- |
>30.30−68.18 |
250 |
|
0.15−0.2 |
- |
>68.18−121.20 |
150 |
|
0.2−0.35 |
- |
>121.20−371.19 |
100 |
|
0.35−0.7 |
± 1.5 txog ± 2.5 |
- |
ib 150g |
|
0.7−1.8 ± |
± 1 0 rau ± 2 0 |
- |
ib as20 |
3. Feature
- Cov cuab yeej kub kub: raws li cov ntawv thov tshwj xeeb, cov cuab yeej kub kub yuav tsum tau ua.
- Txoj kab uas hla sib xws. qhov hnyav sib txawv ntawm ob sib law liag 200mm-hlau daim yog tsawg dua 0. 5% ntawm nominal
- Kev Ncaj Ncees: Tsis tu ncua tungsten hlau raws li cov neeg siv khoom xav tau
- Ncaj tungsten hlau. rau tungsten hlau thinner tshaj 100um. ntsug qhov siab ntawm 500mm dawb, tshem tawm cov hlau yuav tsum tsis pub tsawg tshaj 450mm: rau cov tungsten hlau ntawm los yog thicker tshaj 10oum, lub siab tshaj plaws arc qhov siab ntawm ob lub ntsiab lus nrog ib tug deb ntawm 100mm yog 10mm.
- Deg tej yam kev mob: du nto, tsis muaj splits, burrs, tawg, dents, thiab dots. roj paug.
4. Cov txheej txheem tsim khoom
Kev khiav dej num ntawm ntshiab tungsten hlau feem ntau suav nrog cov kauj ruam hauv qab no:
1) Kev npaj cov ntaub ntawv: Extract tungsten nrog ib tug purity ntawm ntau tshaj 99.95% los ntawm ntshiab tungsten raw cov ntaub ntawv, thiab ces nqa tawm hmoov metallurgy los yog smelting rau hauv tungsten blanks.
2) txheej txheem forging: Lub tungsten billet yog forged ob peb zaug los tsim ib lub cev nrog cov nplej nplua nuj thiab tsis sib xws.
3) Cold drawing processing: lub tungsten billet yog txias kos rau hauv ib tug tuab hlau pas nrig los ntawm ib tug hlau nqus tshuab, thiab ib tug tej yam kev faib ua feem ntawm daim duab lubricant yog siv los tswj nws nto lubrication.
4) Kev kho cua sov: Cov tungsten hlau yog rhuab kom tshem tawm cov kev ntxhov siab sab hauv thaum lub sij hawm stretching txheej txheem thiab txhim kho nws lub zog thiab toughness.
5) Kev ua thiab kev tsim: siv tungsten hlau ua khoom siv los txiav, coil, thiab duab tungsten hlau raws li cov kab sib txawv thiab cov duab.
6) Kev tshuaj xyuas thiab ntim khoom: Cov txheej txheem ua tiav cov hlau tungsten ntshiab yog tshuaj xyuas kom zoo, ntim rau hauv cov khoom lag luam, thiab cim nrog cov qauv thiab cov ntaub ntawv batch.
5. Daim ntawv thov teb
Ntshiab tungsten hlau yog dav siv nyob rau hauv ntau lub teb, tshwj xeeb tshaj yog nyob rau hauv ib puag ncig ntawm kub, siab siab, thiab siab nqus tsev vacuum. Cov hauv qab no yog ob peb lub ntsiab lus thov:
1) Thermal processing: Nws yog siv los ua filaments, arc ua, thiab lwm yam.
2) Semiconductor: Nws yog siv hauv kev lag luam semiconductor, tshwj xeeb tshaj yog nyob rau hauv kev tsim cov thermal qhov chaw hauv cov khoom siv semiconductor.
3) Cov Khoom Siv Kho Mob: Nws yog siv rau hauv kev tsim cov qhov txhab kho tom qab phais.
4) Aerospace: Nws yog siv los ua turbine hniav, foob pob ua ntxaij nozzles, thiab lwm yam.
Qhov kawg ntshiab tungsten hlau hlau cov khoom feem ntau yog siv nyob rau hauv high-temperature khoom thiab hluav taws xob, xws li capacitors, high-power discharge tubes, semiconductor ceramics, thiab lwm yam teb.
Cim npe nrov: Tuam Tshoj ntshiab tungsten hlau manufacturers, lwm tus neeg
