สถิติ
เปิดเมื่อ28/01/2015
อัพเดท19/06/2024
ผู้เข้าชม2243540
แสดงหน้า2760050
ปฎิทิน
December 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
31
    
สมาชิก

สมัครสมาชิก | ลืมรหัสผ่าน

ทังสเตนคาร์ไบด์

อ่าน 756345 | ตอบ 8456
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 :
4558
อ้างอิง

vwrehtw
أعلنت شركة خدمه في دولة الإمارت، عن طرح عدد من الوظائف الشاغرة لديها لعدد من التخصصات
الوظائف المطلوبة التى اعلنت عنها الشركه فى موقع شاغر هى
مشرف خدمات لينة (اناث) – أبو ظبي.
مشرف FM- أبو ظبي.
مدير FM- أبو ظبي.
مشرف خدمات لينة – أبو ظبي.
مسؤول بيئة السلامة الصحية – أبو طبي.
مهندس MEP- أبو ظبي.
مشرف MEP (تجربة البيع بالتجزئة) – أبو ظبي.
مهندس مدني (متحدث عربي) – أبو ظبي.
مسؤول دعم المبيعات AUH (تجربة العقارات) – أبو ظبي.
مضيفة – أبو ظبي.

https://sha5ir.com/
 
vwrehtw [197.42.193.xxx] เมื่อ 19/05/2023 05:32
4559
อ้างอิง

Distillate

Your write-up is creative and amazing!

 

Distillate

 
ลิงค์ที่เกี่ยวข้อง : https://herbapproach.org/product-category/concentrates-canada/distillate/
Distillate [122.52.176.xxx] เมื่อ 19/05/2023 08:35
4560
อ้างอิง

Indica Flower

Your write-up is creative and amazing!

Indica Flower

 
ลิงค์ที่เกี่ยวข้อง : https://herbapproach.org/product-category/cannabis-flower/indica/
Indica Flower [122.52.176.xxx] เมื่อ 19/05/2023 09:10
4561
อ้างอิง

neha singh
mumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escortsmumbai escorts
 
neha singh [106.201.155.xxx] เมื่อ 19/05/2023 13:09
4562
อ้างอิง

sarakaurseo
Therefore, exactly what have you been looking forward to? Get in Touch with Delhi escort service to reserve a consultation Using the Highest-quality girl In all of Delhi. Proceed crazy. Thus, your girlfriend may cause you discontent as she's perhaps not skilled to dig deep and pull on exactly the manners and means in which your fantasies might be fulfilled.
 
ลิงค์ที่เกี่ยวข้อง : https://www.sarakaur.com/
sarakaurseo [103.176.16.xxx] เมื่อ 19/05/2023 13:31
4563
อ้างอิง

Guwahati escorts

Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts

Guwahati escorts
Guwahati escorts
Guwahati escorts
Guwahati escorts

 
ลิงค์ที่เกี่ยวข้อง : https://www.nityajoshi.com/escort-service-in-guwahati.html
Guwahati escorts [106.201.155.xxx] เมื่อ 19/05/2023 13:45
4564
อ้างอิง

shira seea
Thanks for your content on this blog love for the writer. Kindly visit my blog.PayPal Login | Cash App Login
 
shira seea [192.166.244.xxx] เมื่อ 19/05/2023 13:45
4565
อ้างอิง

neha singh
bandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escortsbandra escorts
 
neha singh [106.201.155.xxx] เมื่อ 19/05/2023 14:30
4566
อ้างอิง

game guardian ios
 Thanks for writing a superb Blog. On this website, I always see quality-dependent articles. If you want game guardian on iOS you can view here an easy Guide to Download Game Guardian on iOS without Jailbreak, you can view full information over the above link.
 
game guardian ios [59.91.162.xxx] เมื่อ 19/05/2023 14:57
4567
อ้างอิง

OMS

In 2022, the E-commerce industry globally reached a milestone, recording its first trillion-dollar year. This record-breaking growth can be attributed to the shift in consumer behavior, as Covid-19 pushed more people to switch to online shopping. To stay competitive, businesses need to invest in effective Order Management System (OMS) that can handle the sudden increase in orders volume coming from multi-channel retailing strategy during peak seasons and Spike days. An OMS can revolutionize your retail operations, but the key to unlocking its full potential lies in exceptional UI design and UX design. In this UI/UX blog, we will explore how focusing on UI/UX design can help create an Order Management System that drives efficiency, improves customer satisfaction, and ensures a seamless E-commerce experience.

Read more: https://lollypop.design/blog/2023/may/optimizing-order-management-system-for-e-commerce-success/

You may want to read: UI/UX Design

B2B and B2C
b2b and b2c websites
b2c web design
b2c website design
UI/UX design
ui & ux
ux design
ui design
ux designers
mobile payment
mobile payment apps
mobile app conversion rate
outsourcing
outsourcing why
strategic outsourcing
considering outsourcing back office
outsourcing company

 

 
OMS [101.53.25.xxx] เมื่อ 19/05/2023 17:09
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764765766767768769770771772773774775776777778779780781782783784785786787788789790791792793794795796797798799800801802803804805806807808809810811812813814815816817818819820821822823824825826827828829830831832833834835836837838839840841842843844845846847
ความคิดเห็นของผู้เข้าชม
ชื่อผู้แสดงความคิดเห็น :
สถานะ : รหัสผ่าน :
ลิงค์ที่เกี่ยวข้อง :
รหัสความปลอดภัย :