สถิติ
เปิดเมื่อ28/01/2015
อัพเดท19/06/2024
ผู้เข้าชม2223472
แสดงหน้า2736550
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 745534 | ตอบ 8449
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 :
4219
อ้างอิง

호두코믹스
Howdy very nice blog!! Man .. Beautiful .. Amazing ..
호두코믹스
 
호두코믹스 [182.182.71.xxx] เมื่อ 9/04/2023 22:36
4220
อ้างอิง

Sankiturner01

A well-known software wallet for ETH-based token storage is MetaMask. You can also store the other network-based tokens by following this instruction. Also, this article will show you how to delete a network from the MetaMask app or extension.

Metamask Extension |

Metamask Login With password

 
Sankiturner01 [207.244.71.xxx] เมื่อ 10/04/2023 12:21
4221
อ้างอิง

Kirti Jaiswal
Massage therapy is a form of physical therapy that involves the manipulation of soft tissues in the body, such as muscles, tendons, ligaments, and connective tissue, to promote relaxation, reduce pain and discomfort, improve circulation, and increase overall wellness.
Massage therapists use their hands, fingers, forearms, elbows, and sometimes even their feet to apply pressure and manipulate the soft tissues of the body. They may also use techniques such as stretching, kneading, tapping, vibration, and friction to help alleviate tension, pain, and stiffness in the muscles and joints.
Massage therapy can be used to treat a wide range of conditions, including chronic pain, headaches, sports injuries, stress, anxiety, and depression. It can also be used as part of a wellness routine to promote relaxation, reduce muscle tension, and improve overall health and well-being.
There are many different types of massage therapy, including Swedish massage, deep tissue massage, sports massage, trigger point therapy, and myofascial release, among others. Each type of massage therapy has its own unique benefits and techniques, and the therapist will choose the most appropriate type of massage based on the individual needs and goals of the client.
Call Girls in Gurgaon
Escorts in Gurgaon
Call girls in Gurgaon
Call girls in Udaipur
Escorts in Salt Lake
Escorts in Haridwar
Escorts in Rishikesh
Call girls in Dwarka
Call girls in Manali
Call girls in Dehradun
Call Girls in Haridwar
Call Girls Gurgaon
Call girls in Gurgaon
Escorts in Rishikesh
Call Girls in Dwarka
Escorts in Haridwar
Escorts in Haridwar
Escorts in Mussoorie
Escorts in Sodala
Escorts in Pune
Escorts in Jaipur
Call girls in Jaipur
Andheri escorts service
Indirapuram call girls
Escorts in Mumbai
Ujjain Escorts
Escorts in Saket
Noida call girls
Rishikesh escorts
Call girls in Agra
Call girls in Mumbai
Call girls in Pune
Call girls in Delhi
Call girls in Gurgaon

Call girls in Haridwar
Call girls in Rishikesh
Call girls in Haridwar

Call girls in Mumbai
Call girls in Noida
Call girls in Ujjain
Call girls in Roseate House
Call girls Bhilwara
Call girls in Saharanpur
Call girls in Roorkee
Call girls in Baner
Call girls in Andheri
Call girls in Panvel
Call girls in Santa Cruz
Call girls in Bandra
Call girls in Borivali
Call girls in Kandivali
Call girls in Shalimar Garden
Call girls in c scheme
Call girls in Chanakyapuri
Call girls in Laxmi Nagar
Call girls in Jodhpur
Call girls in Gurugram
Call girls in Golf course
Call girls in Pushkar

My names for you which can help to find location for you click on my name then you will contact me I can also suggest location according to you.
TRISHA // AKANKSHA // TEENA // ANANYA // MUSKAN // KRITIKA // SHIRLEY // PRIYA // SHIPRA // SANDHYA // SARAH // SANDHYA // AVASHIKA // NIHARIKA // SONAM // MENAKA // URVASHI // DIYA // SHILPA // REENU // RESHMA // AKANKSHA // ADITI // SHIPRA // SALTLAKE // DEEPTI // ALIA
http://bit.ly/3Kli1oK 
http://bit.ly/3KnOvyr 
http://bit.ly/3zED8xo 
http://bit.ly/3mbz0lr 
http://bit.ly/40Se6H2 
http://bit.ly/3Gs0Uk6 
http://bit.ly/43hJvEd 
https://bit.ly/3ZUMyzr 
https://bit.ly/3MomSYL 
http://bit.ly/3MsWTQa 
http://bit.ly/41g7x0R 
http://bit.ly/3zI9YNR 
http://bit.ly/3zIwyGg 
http://bit.ly/3Gs2S3N 
https://bit.ly/3KjVCYQ 
https://bit.ly/3KKFKAf 
http://bit.ly/3KIvqIV 
http://bit.ly/41ddRGo 
http://bit.ly/3mijEeW 
http://bit.ly/3UhywXu 
http://bit.ly/3Um8sdz 
http://bit.ly/3Um9pCS 
http://bit.ly/3KhPSyV 
http://bit.ly/43hCjbh 
https://bit.ly/3MrDj6A 
http://bit.ly/3MrDqz2


My blogs for you.
https://adventureofrishikesh.blogspot.com 
https://trishadehradunmassageparlor.blogspot.com 
https://loveincityofpune.blogspot.com
https://funzoneindwarka.blogspot.com 

https://manaliholidaylocations.blogspot.com 
https://akankshagurgaonspa.blogspot.com 
https://beautyofharidwar.blogspot.com
https://businessinnoida.blogspot.com
https://andherinights.blogspot.com 

https://iloveindirapuramtownship.blogspot.com 
https://mumbairomeos.blogspot.com
https://loveinujjain.blogspot.com
https://saketatmosphereforlove.blogspot.com 

https://lovespotsofmussooriee.blogspot.com 
https://funwithgirlsinsodala.blogspot.com
https://youareinudaipur.blogspot.com
https://relationshipwithagra.blogspot.com 

https://visitinuttarpradeshanddelhincr.blogspot.com
My website
https://sites.google.com/view/mytoursandspa/our-services

 
ลิงค์ที่เกี่ยวข้อง : http://callgirlgurgaon.in
Kirti Jaiswal [27.5.18.xxx] เมื่อ 10/04/2023 15:44
4222
อ้างอิง

Jasper
You really make it appear really easy with your presentation however I to find this matter to be really one thing which I think I'd by no means understand. It seems too complex and very vast for me. I'm having a look forward to your next submit, I will attempt to get the hang of it!
 
ลิงค์ที่เกี่ยวข้อง : https://callgirlsofpakistan.com/lahore-escorts/
Jasper [223.29.228.xxx] เมื่อ 10/04/2023 15:47
4223
อ้างอิง

Connaught Place Escorts

Looking to add some spice to your life? Look no further than Connaught Place Escorts! Our beautiful and talented ladies will provide you with an unforgettable experience that will leave you wishing for more. Why settle for mediocrity when you can have perfection? Book with us today and prepare for an adventure you'll never forget. Connaught Place Escorts Services | Connaught Place Call Girls Service | Connaught Place Independent Escorts | Connaught Place Female Escorts | Connaught Place College Girls Escorts | CP Escorts | CP Call Girls

 
ลิงค์ที่เกี่ยวข้อง : https://www.lustdelhi.com/connaught-place-escorts/
Connaught Place Escorts [146.196.33.xxx] เมื่อ 10/04/2023 16:46
4224
อ้างอิง

Connaught Place Escorts

Looking to add some spice to your life? Look no further than Connaught Place Escorts! Our beautiful and talented ladies will provide you with an unforgettable experience that will leave you wishing for more. Why settle for mediocrity when you can have perfection? Book with us today and prepare for an adventure you'll never forget. Connaught Place Escorts Services | Connaught Place Call Girls Service | Connaught Place Independent Escorts | Connaught Place Female Escorts | Connaught Place College Girls Escorts | CP Escorts | CP Call Girls

 
ลิงค์ที่เกี่ยวข้อง : https://www.lustdelhi.com/connaught-place-escorts/
Connaught Place Escorts [146.196.33.xxx] เมื่อ 10/04/2023 16:46
4225
อ้างอิง

surbhi rana
ADOPT A REAL METHOD TO BOOK Delhi ESCORT SERVICE To reserve an escort could not be easier, simply see the website, select the woman that rocks your boat and phone our friendly and attentive reception women to organize a moment we have several more women who do not want their photographs on the website so, frankly, there are a number of extraordinary Delhi call girls sitting in the end of a telephone, simply waiting for us to provide them a phone and set you in touch. Straight ahead, excepting you may have difficulty deciding which one of the many amazing and alluring women that you need to fulfil. Among the greatest methods to locate your ideal escort in Delhi would be to utilize an internet escort directory. Our escorts are having a gorgeous face, appealing body figure, ideal cup dimensions of Delhi escorts women, body fat and each of the essential things. They'll Delhi escorts depending on your requirement and permit you to have full accessibility upon her play with the enjoyable game with female escorts services in Delhi tonight. BOOK A MEMORABLE ESCORT AT YOUR PLACE To remain with your charges are somewhat different for the various time frames. If you would like to shell out just a while, that could be less than the fee, we estimate for an entire night stand with Delhi cheap escorts. Mark this out location and select a Delhi escort that matches most on your dream. Just have a look at their profiles and photos. All descriptions are updated lately and are being altered on a regular basis. Glamour and allure are the institutions that portray the service of Delhi hi profile escorts. The sense of style, education and intellect is odd to each escort of this service angels guarantees every customer with a fashionable and delicate escort that will create a memorable impression on almost any corporation with Delhi model escorts. Repeat your ultimate fantasy with Lucknow escorts.  

Delhi call girls.
 
surbhi rana [132.154.37.xxx] เมื่อ 10/04/2023 16:51
4226
อ้างอิง

Melina
After looking at a handful of the blog articles on your web site, I really appreciate your technique of writing a blog. I added it to my bookmark website list and will be checking back soon. Take a look at my website as well and let me know how you feel.
 
ลิงค์ที่เกี่ยวข้อง : http://massholemommy.com
Melina [45.91.21.xxx] เมื่อ 10/04/2023 17:31
4227
อ้างอิง

Kaylee
I just could not go away your web site before suggesting that I actually enjoyed the standard info a person provide to your guests? Is gonna be back regularly in order to investigate cross-check new posts
 
ลิงค์ที่เกี่ยวข้อง : https://infosys.wiki/wiki/Tahu_tentang_tuturan_slot_rtp_pada_game_slot_online
Kaylee [103.155.217.xxx] เมื่อ 10/04/2023 18:19
4228
อ้างอิง

Delhi Escorts Gin
Your search to discover naked Delhi Escorts online has actually presently come to an end. You will definitely be surprised to find that you can discover exceptional images of Delhi Call girls in the nude without them being naughty or unpleasant.
Precisely just how do I successfully construct and also day a Buddy?
In our sight, Mumbai Escorts are the most instead and likewise the sexiest female on the planet. This is just one of the major factors that draw in males from throughout the planet in the direction of them. There is no far better initiate for a male besides having nude Bangalore Escorts in their bed.
Though, online world presents its really own difficulty. The very first questions that stamina problem your mind is whether to concept the different internet sites and also the Hyderabad Call girls that you collect online. You get all sort of info with each other premium as well as likewise awful and also you could comprehending puzzled.
It's so uncomplicated to Reserve
When you are prepared to begin having satisfaction, EscortsGin.com sites have taken a page from the dating world, as well as you will absolutely locate that ample of websites are as straightforward to utilize as dating applications etc. You can quick scroll throughout images of attractive girls in addition to find the one that obtains you usually delighted. It is straightforward to check out based upon your location, along with Chandigarh Call Girls person so fantastic, you can also check out by location. Nevertheless, the much less journey you or her need to do, the earlier you can get to acquire your imaginations.
Pointing out which, both Chennai Escorts bio page provides ample of information to advertise you establish the right array. Not just will certainly they videotape the option they make use of, but a little of personality story aids validate you if you're mosting likely Goa Escorts to really acquire on well. Possibly you desire a celebrity with an authentic kinky thought, or probably you wish to have a bit added of caring evening before it gets hot as well as deep.
When you're prepared to magazine, websites head out of their technique to make it as easy as possible, utilize a mobile number or email address. Along with while the moment durability seem like a slower selection, taking into consideration that so various persons are for life on the telephone, you'll be impressed exactly how basic it is to obtain all kind through messages. This is an exceptional time to get every your inquiry out of the strategy, so when you gather directly Vadodara Call Girls you can centre on the enjoyment.
Make your trip great With Delhi Escort Call Girls
The ladies are incredibly elegant as well as likewise uncommon at their services and also show up so eye-catching that you will not be smart to oppose literally at one appearance alone. If you are looking for prayer as well as wish it to be shown the appeal of Call Girls Gurgaon after that a specific capacity is that, that you will certainly like these fantastic Jaipur Escorts  and likewise their relaxing love for you.
 
Delhi Escorts Gin [45.121.2.xxx] เมื่อ 10/04/2023 18:45
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764765766767768769770771772773774775776777778779780781782783784785786787788789790791792793794795796797798799800801802803804805806807808809810811812813814815816817818819820821822823824825826827828829830831832833834835836837838839840841842843844845846
ความคิดเห็นของผู้เข้าชม
ชื่อผู้แสดงความคิดเห็น :
สถานะ : รหัสผ่าน :
ลิงค์ที่เกี่ยวข้อง :
รหัสความปลอดภัย :