สถิติ
เปิดเมื่อ28/01/2015
อัพเดท19/06/2024
ผู้เข้าชม2218905
แสดงหน้า2731634
ปฎิทิน
November 2024
Sun Mon Tue Wed Thu Fri Sat
     
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
สมาชิก

สมัครสมาชิก | ลืมรหัสผ่าน

ทังสเตนคาร์ไบด์

อ่าน 743584 | ตอบ 8448
ทังสเตนคาร์ไบด์
       ทังสเตนคาร์ไบด์ (อังกฤษ: tungsten carbide) มีสูตรเคมีคือ WC ในรูปพื้นฐานจะมีลักษณะเป็นผงสีเทาละเอียด มี 2 โครงสร้างคือแบบหกเหลี่ยม (α-WC) และแบบลูกบาศก์ (β-WC)
 
       ทังสเตนคาร์ไบด์เตรียมได้จากการทำปฏิกิริยาระหว่างทังสเตนกับคาร์บอนที่อุณหภูมิ 1400–2000 °C[3] หรือให้ความร้อนกับทังสเตนไตรออกไซด์และแกรไฟต์โดยตรงที่ 900 °C หรือในแก๊สไฮโดรเจนที่ 670 °C ตามด้วยการคาร์บิวไรเซชันในแก๊สอาร์กอนที่ 1000 °C[4] หรือใช้วิธีการเคลือบด้วยไอเคมี เช่น
  • ทำปฏิกิริยาระหว่างทังสเตนเฮกซะคลอไรด์กับไฮโดรเจนและมีเทนที่อุณหภูมิ 670 °C (1,238 °F)
 WCl6 + H2 + CH4 WC + 6 HCl
  • ทำปฏิกิริยาระหว่างทังสเตนเฮกซะฟลูออไรด์กับไฮโดรเจนและเมทานอลที่อุณหภูมิ 350 °C (662 °F)
                WF6 + 2 H2 + CH3OH → WC + 6 HF + H2O
       ทังสเตนคาร์ไบด์มีจุดหลอมเหลวที่ 2,870 °C (5,200 °F) และจุดเดือดที่ 6,000 °C (10,830 °F) มีความแข็งระดับ 9 ตามมาตราโมสและประมาณ 2600 ตามมาตราวิกเคอส์[5] ทังสเตนคาร์ไบด์มีความแข็งเกร็งมากกว่าเหล็กกล้าประมาณ 2 เท่า มีค่ามอดุลัสของยังประมาณ 530–700 GPa (77,000–102,000 ksi)[2][6][5][7] โมดูลัสของแรงบีบอัด 630–655 GPa และโมดูลัสของแรงเฉือน 274 GPa[8]
 
ด้วยคุณสมบัติความแข็งและทนความร้อนสูง ทังสเตนคาร์ไบด์จึงใช้ทำเป็นเครื่องมือตัดหรือหัวเจาะ ใช้ทำกระสุนเจาะเกราะ เครื่องมือผ่าตัด อุปกรณ์กีฬา เครื่องประดับและอื่น ๆ
 
 
 
 
 
 
 
 
 
 
อ้างอิง
 
  1. Kurlov, p. 22
  2. Blau, Peter J. (2003). Wear of Materials. Elsevier. p. 1345. ISBN 978-0-08-044301-0.
  3. Pierson, Hugh O. (1992). Handbook of Chemical Vapor Deposition (CVD): Principles, Technology, and Applications. William Andrew Inc. ISBN 0-8155-1300-3.
  4. Zhong, Y.; Shaw, L. (2011). 'A study on the synthesis of nanostructured WC–10 wt% Co particles from WO3 , Co3O4 , and graphite'. Journal of Materials Science 46 (19): 6323–6331. Bibcode:2011JMatS..46.6323Z. doi:10.1007/s10853-010-4937-y.
  5. Groover, Mikell P. (2010). Fundamentals of Modern Manufacturing: Materials, Processes, and Systems. John Wiley & Sons. p. 135. ISBN 978-0-470-46700-8.
  6. Kurlov, p. 3
  7. Cardarelli, François (2008). Materials Handbook: A Concise Desktop Reference. Springer Science & Business Media. pp. 640–. ISBN 978-1-84628-669-8.
  8. Kurlov, pp. 30, 135
  9. Sprince, NL.; Chamberlin, RI.; Hales, CA.; Weber, AL.; Kazemi, H. (1984). 'Respiratory disease in tungsten carbide production workers'. Chest 86 (4): 549–557. PMID 6434250. doi:10.1378/chest.86.4.549.
  10. 12th Report on Carcinogens'. National Toxicology Program. http://ntp.niehs.nih.gov/go/roc12. เรียกข้อมูลเมื่อ 2011-06-24.
ความคิดเห็น :
1191
อ้างอิง

online cannabis dispensary
Incredible ideas shared in this website! Much Appreciated .
online cannabis dispensary
 
ลิงค์ที่เกี่ยวข้อง : https://herbapproach.org/
online cannabis dispensary [210.185.171.xxx] เมื่อ 22/01/2022 19:15
1192
อ้างอิง

رغوة في البول
 
ลิงค์ที่เกี่ยวข้อง : https://m3l0ma.com/
رغوة في البول [41.36.217.xxx] เมื่อ 26/01/2022 14:34
1193
อ้างอิง

Megha Malik
Pent Up Demand For Escorts After 14 months of social distancing and on the whole avoiding anyone not in your bubble the prospect of finally being let loose to enjoy the company of a beautiful Delhi Independent Escorts is a mouthwatering prospect to say the least and comes not a moment too soon for most of us.

As we near what will hopefully be the end of Covid restrictions, which we have now endured for over a year, there is much talk about pent up demand for goods, services and holidays. We are like greyhounds at the traps itching to burst back into life and to once again enjoy the passtimes, hobbies and social engagements which we have craved for so long. This pent up demand is probably more evident within the escort industry than some others. After 14 months of social distancing and on the whole avoiding anyone not in your bubble the prospect of finally being let loose to enjoy the company of a beautiful Delhi Independent Escorts is a mouthwatering prospect to say the least and comes not a moment too soon for most of us.

Couped up at home, sometimes with family members who you don't always get on on with and not having an outlet in the form of hobbies or punting available all this time has been a journey non of us want to go through Independent Escorts In Delhi again. So, we all have an urge, once all restrictions are safely lifted, to get out there and make up for lost time. We may even feel that this time round we are going to do even more or be more adventurous. Maybe a year of detention at home has made us realise how precious our freedom to do as we please is (within legal limits) and we will want to exercise that right to it's fullest. At least, we may head into the lifting of lockdown in that frame of mind but who knows if we will simply revert back to our old selves before long.

What is undeniable however is that there is serious pent up demand for many things, especially female company in the form of Delhi Escort Service. A glance through social media posts shows the eagerness of clients to finally hook up with old favourites or new talents and bookings are being taken daily for when that day comes in June.

For Type Of escort

Aerocity Escorts Mahipalpur escorts Connaught Place Escorts lajpat nagar escorts New friends colony Paschim vihar Delhi College Girl Escorts Delhi Housewife Escorts Delhi Russian Escorts Escorts Delhi High Class Escorts Delhi Mature Escorts Indian Escorts Delhi Young Escorts Delhi Model Escorts Delhi Incall Outcall Escorts

For Mumbai Escorts

Mumbai Escort Service | Mumbai Cheap Escorts | Escort In Juhu | Mumbai Vip Escorts | Mumbai Model Escorts | Mumbai Russian Escorts | Mumbai Housewife Escorts | Mumbai Independent Escorts | Mumbai Celebrity Escorts | Mumbai Busty Escorts | Mumbai Air Hostess Escorts |

For Delhi Hotel Escorts Or More

hotel mehra residency escorts service

karkar duma escorts service

jiya mumbai hand job escorts service

anand vihar escorts service

pragati maidan escorts service

chhaya busty malviya nagar escorts service

kashika exclusive mumbai escorts service

karkarduma court escorts service

geetika slim lajpat nagar escorts service

keshav puram escorts service

indraprastha escorts service

candi couple escorts service

shabana mumbai erotic massage escorts service

ashok park main escorts service

chetna travel rohini escorts service

tanika bdsm greater kailash escorts service

mayur vihar pocket I escorts service

hotel surya international escorts service

jangpura escorts service

haryana escorts service

disha high profile mumbai escorts service

avantika outcall paschim vihar escorts service

pranika cim gurgaon escorts service

iit delhi escorts service

kangana outcall saket escorts service

uttam nagar east escorts service

badarpur escorts service

goa escorts service

ghevra metro station escorts service

bandra escorts service

moulsari escorts service

vishwavidyalaya escorts service

seelampur escorts service

lakshdweep escorts service

noida sector 52 escorts service

shyam park escorts service

noida sector 59 escorts service

khan market escorts service

samaypur badli escorts service

sakshi lesbian greater kailash escorts service

dwarka sec 21 escorts service

haiderpur badli mor escorts service

tagore garden escorts service

noida city center escorts service

noida sector-34 escorts service

raj bagh escorts service

dishita high end mumbai escorts service

dlf phase 1 escorts service

the manor hotel escorts service

delhi haat escorts service

mandawali west vinod nagar escorts service

pondicherry escorts service

shahdara escorts service

civil lines escorts service

jama masjid escorts service

hotel leela palace chanakyapuri escorts service

uttam nagar west escorts service

hotel seven seas escorts service

welcome escorts service

govindpuri escorts service

escorts service Near major mohit sharma Metro Station

sanjna mumbai fantasy escorts service

hotel laffaire karolbagh escorts service

bhikaji cama place escorts service

madi pur escorts service

bani busty escorts service

noida sector-15 escorts service

chhattisgarh escorts service

kalpita model escorts service

dashrath puri escorts service

haimi incall escorts service

eashi young noida escorts service

andheri escorts service

the leela ambience convention escorts service

hanita late night escorts service

eeshika slim noida escorts service

jahangir puri escorts service

hotel taj city centre escorts service

farha travel escorts service

janak puri west escorts service

jignasa high class nehru place escorts service

jamia millia islamia escorts service

delhi cantonment escorts service

ramesh nagar escorts service

hotel regent grand karol bagh escorts service

nangloi escorts service

shadipur escorts service

esi basaidarpur escorts service

surbhi mumbai housewife escorts service

nawada escorts service

hotel sun view international escorts service

nishtha couple connaught place escorts service

janpath escorts service

hotel golden tulip essential escorts service

cyra mumbai russian escorts service

netaji subhash place escorts service

tis hazari escorts service

darsha young paschim vihar escorts service

delhi gate escorts service

hotel le meridien escorts service

saachi bdsm malviya nagar escorts service

nalini slim paschim vihar escorts service

sarai kale khan escorts service

janak puri east escorts service

shiv vihar escorts service

arunachal pradesh escorts service

hotel the westin gurgaon escorts service

chandni chowk escorts service

jasola vihar shaheen bagh escorts service

okhla vihar escorts service

vineeta outcall malviya nagar escorts service

darpan fantasy escorts service

chinmayi incall saket escorts service

manipur escorts service

hotel hilton garden inn escorts service

Krishna nagar escorts service

mg road escorts service

chetana outcall new friends colony escorts service

tikri border escorts service

dwarka sec-10 escorts service

jaffrabad escorts service

golf course escorts service

kohat enclave escorts service

model town escorts service

hotel the oberoi escorts service

ip extension escorts service

johri enclave escorts service

shivaji park escorts service

joel duo cp escorts service

majlis park escorts service

patel chowk escorts service

ghitorni escorts service

assam escorts service

kalindi kunj escorts service

ritu nehru place escorts service

jammu and kashmir escorts service

andhra pradesh escorts service

madhya pradesh escorts service

hotel the leela ambience escorts service

anayta mumbai model escorts service

tamil nadu escorts service

erisha travel escorts service

joshita gfe aerocity escorts service

hotel sheraton escorts service

jignasa best mumbai escorts service

shalimar bagh escorts service

preet vihar escorts service

vaishali escorts service

sector-55-66 escorts service

mundka escorts service

tripura escorts service

hotel centaur escorts service

hotel the claridges escorts service

mizoram escorts service

hotel diplomat escorts service

tanvi celebrity mahipalpur escorts service

arpita model escorts service neemrana

jharkhand escorts service

punjab escorts service

mayur vihar-II escorts service

noida sector-62 escorts service

charita college girl escorts service

hotel amara escorts service

botanical garden escorts service

dwarka mor escorts service

race course escorts service

hotel taj palace escorts service

colaba escorts service

bishakha travel escorts service

 
ลิงค์ที่เกี่ยวข้อง : https://www.meghamalik.com
Megha Malik [103.87.59.xxx] เมื่อ 26/01/2022 15:04
1194
อ้างอิง

Jiyass37
Looking for Delhi Escorts, Delhi Escort Service, Delhi Call Girls, Delhi Escort? Get high-profile Russian escorts and independent call girls in Delhi we offer sensual escort services at Cheap Affordable Rates, Independent Escorts in Delhi 24/7.

Website Delhi Escorts
 
Jiyass37 [27.62.222.xxx] เมื่อ 26/01/2022 16:45
1195
อ้างอิง

stoned
This is very perceptive blog site!
stoned
 
stoned [119.111.142.xxx] เมื่อ 27/01/2022 09:55
1196
อ้างอิง

what is shatter
http://cannabismo.org/how-to-smoke-shatter/
What a great designs and ideas are really appreciated. I read a article under the same title some time ago, but this articles quality is much, much better. Thanks for sharing!
what is shatter
 
 
ลิงค์ที่เกี่ยวข้อง : http://cannabismo.org/how-to-smoke-shatter/
what is shatter [175.176.15.xxx] เมื่อ 27/01/2022 13:52
1197
อ้างอิง

sand blasting machine
Are you looking for Sand Blasting Room.

Well we are one of the most renowned manufacturer of Sand blasting Machine 
<a href='https://shotsblastingmachine.com/sand-blasting-room/'>Sand Blasting Room</a>
we have clients for Sand Blasting in UAE , katar , Oman etc and we will willing to join hands with more clients as well 
 
ลิงค์ที่เกี่ยวข้อง : https://shotsblastingmachine.com
sand blasting machine [27.58.21.xxx] เมื่อ 27/01/2022 14:24
1198
อ้างอิง

Alicia
Có 3 tỷ nên đầu tư gì năm 2021
Toàn bộ thông tin vi bằng
lưu ý khi mua nhà liền thổ
kinh doanh gốm sứ
có 2 tỷ nên đầu tư gì
có 2 tỷ nên đầu tư vào đâu
ý tưởng kinh doanh với 1 tỷ
giá đất trên thị trường hiện nay
Giá đất trên thị trường hiện nay
có 1 tỷ nên đầu tư gì
có 2 tỷ kinh doanh gì
doanh gì với 2 tỷ
có 1 tỷ đầu tư gì
đầu tư lãi suất kép
xu hướng kinh doanh 2025,
Vsetcom Electronic
VsetGreen
Vissa Beauty Salon
vốn 2 tỷ kinh doanh gì
có 3 tỷ đầu tư gì
có 3 tỷ nên đầu tư gì
xu hướng kinh doanh 2025
đầu tư dài hạn
đầu tư 2021
có 50 triệu nên đầu tư vào đâu
có 3 tỷ nên đầu tư gì 2021
đầu tư gì với 1 tỷ
có 1 tỷ nên làm gì
1 tỷ nên đầu tư gì
xu hướng kinh doanh trong tương lai
ý tưởng kinh doanh với 300 triệu
có 1 tỷ nên kinh doanh gì
Xu hướng kinh doanh trong tương lai
kinh doanh gì với 1 tỷ đồng
VsetGroup
kiêng kỵ tháng 7 âm
ngày lễ thất tịch là ngày nào
Có 500 triệu nên kinh doanh gì
khởi nghiệp 4.0
Ngày lễ vu lan báo hiếu
đầu tư chứng khoán
mua chứng chỉ quỹ
các mô hình khởi nghiệp
Ý tưởng kinh doanh độc đáo của sinh viên
xu hướng kinh doanh trong tương lai
vàng VSJ
tháng 7 cô hồn
Lễ vu lan báo hiếu
vật phẩm phong thủy
bất động sản uy tín
vsj trực thuộc vsetgroup
VSJ trực thuộc VsetGroup
nghiên cứu bất động sản
kinh doanh thời 4.0
khởi nghiệp 4.0
phong thủy nhà ở
Trung thu Việt Nam
lạm phát ở Việt Nam
Kinh doanh BĐS chia sẻ
kinhdoanhbdschiase.com
Tin tức
Đầu tư
Bất động
sản
Thị trường bất động sản
Nhà ở
Không gian đẹp
Phong thuỷ
Kiến thức
Chia sẻ kinh nghiệm
Ý tưởng kinh doanh
Doanh
nghiệp
Infographic
đầu tư gì với 100 triệu
ý tưởng kinh doanh dịp tết
ý tưởng kinh doanh dịp Tết 2022
Tết xưa và nay
Thiệp Giáng Sinh
 
ลิงค์ที่เกี่ยวข้อง : https://kinhdoanhbdschiase.com/
Alicia [14.227.164.xxx] เมื่อ 28/01/2022 11:06
1199
อ้างอิง

Alicia
Warren Buffett kinh doanh gì
đầu tư gì hôm nay
có 3 tỷ nên đầu tư gì
tuổi đinh mão nên kinh doanh gì
có 800 triệu nên làm gì
ý tưởng kinh doanh độc đáo kiểu Mỹ
Có 2 tỷ nên làm gì
tiền nhàn rỗi là gì
Sim số đẹp VsetGroup
kinh nghiệm đầu tư tiền ảo
warren buffett kinh doanh gi
Có 3 tỷ nên đầu tư gì
cách làm giàu của người nhật
có tiền nên đầu tư gì vào thời điểm này
đầu tư gì vào thời điểm này
mô hình kinh doanh mới ở việt nam
khi nào nên khởi nghiệp
thực trạng thị trường chứng khoán phái sinh việt nam
nên đầu tư gì hôm nay
Đầu tư vào quỹ đầu tư như thế nào
câu chuyện kinh doanh kinh điển
vsetgroup mở rộng dự án vsj
101 ý tưởng khởi nghiệp
Thực trạng thị trường chứng khoán phái sinh Việt Nam
có 3 tỷ nên kinh doanh gì
Có 500 triệu đầu tư gì
có 200tr đầu tư gì
tiết kiệm tiền lương hàng tháng
Có 200 triệu nhàn rỗi nên làm gì
có 200 triệu nhàn rỗi nên làm gì
đầu tư gì với 200 triệu
cổ phiếu vsetgroup
mã cổ phiếu vsetgroup
cổ phiếu VsetGroup
Đầu tư gì với 200 triệu
có 3 tỷ nên làm gì
vốn 500tr kinh doanh gì
Kinh doanh gì với 15 triệu
có 2 tỷ nên đầu tư gì
đầu tư gì với số tiền nhỏ
ý tưởng kinh doanh vốn 100 triệu
mệnh thuỷ nên kinh doanh gì
có 100 triệu nên kinh doanh gì 2022
có 2 tỷ đầu tư gì
2 tỷ đầu tư gì
Có 2 tỷ nên đầu tư gì
khởi nghiệp với số vốn 200 triệu
khởi sự doanh nghiệp
kinh doanh vỉa hè
200 triệu đầu tư gì
nên đầu tư gì với số tiền nhỏ
đầu tư với số tiền nhỏ
đầu tư số tiền nhỏ
đầu tư gì với 500 triệu
đầu tư gì sinh lời nhanh
500 triệu đầu tư gì
vsetgroup là ai
đầu tư gì khi có 500 triệu
dân văn phòng kinh doanh gì
làm gì khi lạm phát tăng cao
làm gì với 200 triệu
Vốn 200 triệu đầu tư gì
đầu tư gì để sinh lời nhanh
kinh doanh với vốn 100 triệu
giới trẻ kinh doanh gì
có 200 triệu nên đầu tư gì
làm gì với số vốn 200 triệu
thị trường chứng khoán phái sinh ở việt nam
có 300tr nên kinh doanh gì
đầu tư gì khi lạm phát tăng cao
Kinh doanh gì với 100tr
làm gì với 500 triệu
nhượng quyền thương hiệu quán ăn
kinh doanh gì với vốn 100 triệu
có 200 triệu nên làm gì
đầu tư chứng khoán ngắn hạn
dự án vsetgroup
Khởi nghiệp kinh doanh với 500 triệu đồng
dự án vsj
khởi nghiệp với 5 triệu
kinh doanh vốn 100 triệu
kinh doanh với số vốn 100 triệu
kinh doanh online 4.0
có ít tiền nên đầu tư gì
giới trẻ nên kinh doanh gì
thời buổi này nên kinh doanh gì
kinh nghiệm đầu tư chứng khoán ngắn hạn
Khởi nghiệp nên đầu tư gì
group29khoinghiep
group29khoinghiep.com
Tin tức
 
ลิงค์ที่เกี่ยวข้อง : https://group29khoinghiep.com/
Alicia [14.227.164.xxx] เมื่อ 28/01/2022 11:08
1200
อ้างอิง

slot
 
ลิงค์ที่เกี่ยวข้อง : https://139.162.12.188/
slot [27.109.115.xxx] เมื่อ 28/01/2022 20:08
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764765766767768769770771772773774775776777778779780781782783784785786787788789790791792793794795796797798799800801802803804805806807808809810811812813814815816817818819820821822823824825826827828829830831832833834835836837838839840841842843844845846
ความคิดเห็นของผู้เข้าชม
ชื่อผู้แสดงความคิดเห็น :
สถานะ : รหัสผ่าน :
ลิงค์ที่เกี่ยวข้อง :
รหัสความปลอดภัย :