Khoom Description
Copper tungsten (CuW, WCu) tau raug lees paub tias yog cov khoom siv hluav taws xob zoo heev thiab cov khoom siv hluav taws xob tiv thaiv cov khoom siv uas feem ntau siv los ua tooj liab tungsten electrodes hauv EDM machining thiab tsis kam vuam daim ntawv thov, hluav taws xob tiv tauj hauv kev siv hluav taws xob siab, thiab cov khoom siv hluav taws xob thiab lwm yam khoom siv hluav taws xob. hauv kev siv thermal.
Copper tungsten (CuW, WCu) tau raug lees paub tias yog cov khoom siv hluav taws xob zoo heev thiab cov khoom siv hluav taws xob tiv thaiv cov khoom siv uas feem ntau siv los ua tooj liab tungsten electrodes hauv EDM machining thiab tsis kam vuam daim ntawv thov, hluav taws xob tiv tauj hauv kev siv hluav taws xob siab, thiab cov khoom siv hluav taws xob thiab lwm yam khoom siv hluav taws xob. hauv kev siv thermal.
Qhov feem ntau tungsten / tooj liab piv yog WCu 70/30, WCu 75/25, thiab WCu 80/20. Lwm cov khoom muaj xws li tungsten / tooj liab 50/50, 60/40, thiab 90/10. Qhov ntau ntawm cov khoom sib xyaw yog los ntawm Cu 50 wt.% mus rau Cu 90 wt.%. Peb cov khoom siv tungsten tooj liab muaj xws li tooj liab tungsten pas nrig, ntawv ci, ntawv, phaj, raj, tungsten tooj liab pas nrig, thiab machined qhov chaw.
Cov khoom
|
Kev sib xyaw |
Qhov ntom |
Hluav taws xob conductivity |
CTE |
Thermal conductivity |
Hardness |
Tshwj xeeb kub |
|
g/cm³ |
IACS % Min. |
10-6 K-1 |
W/m · K-1 |
HRB Min. |
J/g · K |
|
|
WC 50/50 |
12.2 |
66.1 |
12.5 |
310 |
81 |
0.259 |
|
WC 60/40 |
13.7 |
55.2 |
11.8 |
280 |
87 |
0.230 |
|
WC 70/30 |
14.0 |
52.1 |
9.1 |
230 |
95 |
0.209 |
|
WC 75/25 |
14.8 |
45.2 |
8.2 |
220 |
99 |
0.196 |
|
WC 80/20 |
15.6 |
43 |
7.5 |
200 |
102 |
0.183 |
|
WC 85/15 |
16.4 |
37.4 |
7.0 |
190 |
103 |
0.171 |
|
WC 90/10 |
16.75 |
32.5 |
6.4 |
180 |
107 |
0.158 |
Nta
Thaum lub sij hawm tsim ntawm tooj liab tungsten alloy, siab purity tungsten yog nias, sintered thiab ces infiltrated los ntawm oxygen-dawb tooj liab tom qab lub consolidating kauj ruam. Consolidated tungsten tooj liab alloy nthuav tawm ib homogeneous microstructure thiab qis porosity. Kev sib xyaw ntawm tooj liab conductivity nrog tungsten lub siab ceev, hardness, thiab siab melting point ua ib qho kev sib xyaw nrog ntau yam khoom tseem ceeb ntawm ob lub ntsiab lus. Copper-infiltrated tungsten boasts cov khoom xws li kev ua haujlwm siab rau qhov kub thiab txias thiab arc-erosion, zoo heev thermal thiab hluav taws xob conductivity thiab CTE qis (coefficient ntawm thermal).
Lub cev thiab txhua yam khoom thiab melting point ntawm tungsten tooj liab cov ntaub ntawv yuav ua tau zoo los yog oppositely cuam tshuam los ntawm qhov sib txawv ntawm cov tooj liab tungsten nyob rau hauv lub composite. Piv txwv li, raws li cov ntsiab lus tooj liab maj mam nce, cov hluav taws xob thiab thermal conductivity thiab thermal expansion nthuav tawm ib qho kev nyiam ntawm kev muaj zog. Txawm li cas los xij, qhov ceev, hluav taws xob tsis kam, hardness thiab lub zog yuav tsis muaj zog thaum infiltrated nrog tsawg dua tooj liab. Yog li, ib qho tshuaj muaj pes tsawg leeg tsim nyog yog qhov tseem ceeb tshaj plaws thaum xav txog tungsten tooj liab rau kev thov tshwj xeeb.
Tsawg thermal expansion
High thermal thiab hluav taws xob conductivity
High arc kuj
Kev siv tsawg
Daim ntawv thov
Kev siv tungsten tooj liab (W-Cu) tau pom tau nce ntau hauv ntau qhov chaw thiab kev siv vim nws cov khoom sib txawv thiab cov khoom siv thermophysical. Cov ntaub ntawv tungsten tooj liab muaj qhov ua tau zoo tshaj plaws hauv kev ua haujlwm ntawm hardness, lub zog, conductivity, kub kub, thiab arc yaig kuj. Nws tau siv dav siv rau kev tsim hluav taws xob tiv tauj, cov khoom siv hluav taws xob thiab cov khoom sib kis, tuag-sinking EDM electrodes thiab roj txhaj tshuaj nozzles.
Cim npe nrov: Tuam Tshoj tungsten tooj liab alloy rods, Tuam Tshoj tungsten tooj liab alloy rods lwm tus neeg, hoobkas
