สถิติ
เปิดเมื่อ28/01/2015
อัพเดท10/11/2023
ผู้เข้าชม1693307
แสดงหน้า2151634
ปฎิทิน
April 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 503446 | ตอบ 7770
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 :
6698
อ้างอิง

Saloni Rani
This might also be entertaining for the Red Light Areas in Mumbai because she can see how eager you both are to indulge your desires. Using a girl to reach amazing imaginations is a solid approach for ultimate pleasure. Since there is no emotional interaction between the partner and the girl, all the sex is hassle-free. For over ten years, we have chosen suitable young ladies for our customers and searched for the most capable Body to Body Short Service to work for us. Along these lines, we have accumulated a decent gathering of alluring females that can meet each, even the most modern tastes. You can win anything with achievement if you have the backing of such a brilliant female. Don't sit tight for nurturing your new shots, as all you need is, as now, prepared for you. It is straightforward and will give you the most extreme fulfillment. Come here to meet those astonishing Red Light Areas in Bangalore who originated everywhere worldwide.
 
Saloni Rani [103.197.118.xxx] เมื่อ 16/10/2023 17:19
6699
อ้างอิง

Gfnyt
 
Gfnyt [103.83.144.xxx] เมื่อ 16/10/2023 19:29
6700
อ้างอิง

betflixsupervip
Excellent read, Positive site, where did u come up with the information on this posting?I have read a few of the articles on your website now, and I really like your style. Thanks a million and please keep up the effective work.betflix vip
 
betflixsupervip [223.24.93.xxx] เมื่อ 16/10/2023 22:15
6701
อ้างอิง

Lionel
It's enormous that you are getting ideas from this post as well as from our dialogue made here.
 
ลิงค์ที่เกี่ยวข้อง : https://nudeai.com
Lionel [77.47.142.xxx] เมื่อ 16/10/2023 22:17
6702
อ้างอิง

Rulet Oyna
Krupiyelerin eşlik ettiği bu oyun, gerçek bir kumarhane atmosferi sunar ve oyunculara heyecanlı bir deneyim yaşatır. Rulet Oyna
 
Rulet Oyna [137.59.221.xxx] เมื่อ 17/10/2023 01:59
6703
อ้างอิง

Call Girls Kolkata Service

Avail Call Girls in Kolkata & Kolkata Escorts

In India there are a lot of people in our society who love to meet unknown Kolkata escort and want to have fun and sex with them. All such unknown girls want to go for an eyeless date, want to spend some quality time with new people, and are thrilled to know more about them. Such girls or escorts eagerly love to explore themselves with new people and want to know about their minds. Choose the stylish type of adult escort service in Kolkata from our website. Check and elect the stylish type of Kolkata escorts service as per your need. However, also escorts agency in Kolkata will be ideal for you, if you're in Kolkata and after meeting you do not know what to do. Meet with an independent girl who's confident, smart bold, and suitable to fulfill whatever you anticipate from her.

Visit any female escorts in Kolkata or explore call girls in Kolkata at per your convenience and spent enjoyable lovable time with her all the time. Call girls in Kolkata can be your stylish friend, particular clerk, or stint companion as per your demand.

Express Your Passions All The Time

Occasionally, whenever you feel romantic with teenage escorts in Kolkata, perhaps she isn't ready to respond to you back in the same way! Once this happens, most of the time men become frustrated because they need a response whenever they wish! In real life, 90 of the men didn't get a positive response when they truly did! So, the companion service is a stylish option all the time. Most of the successful men in our society prefer casual hook- over all the time. Casual hookers in Kolkata up no way suppose about the time. Whenever you need it, you'll get it whatever you wish.

You have to check Kolkata call girls service and you'll find it'll be stupendous. This service will give you with outstanding service. You'll no way feel like you'll hire some professional service. Independent escorts are always different from other than normal call girls. All independent escort girls belong to a well-known reputed family. They're educated, bold, and beautiful.

call girls near me, independent call girl, near me call girls, independent call girls in Kolkata, call girls Kolkata
cheap rate call girl, sasti call girls, low price call girl, independent call girls Kolkata

What's The Difference Between Call Girls & Independent Escorts?

VIP model escorts in Kolkata is ideal for rich and popular people offer to hire them to have fun with her for a short period. They've their personality, fashion, and style. They're up to date and they've strong common sense and dressing sense. They act like your real gal or woman. Once you choose housewife escorts in Kolkata you'll feel lovely and enjoy a lot with her. They're educated, bold and they've a well-maintained figure. To know further details about our exclusive and high-profile independent girls, also visit our website or call us now!

Escort Service in Kolkata Offers a Strong Internal Piece

Most sophisticated men prefer high profile and luxury companion services in Kolkata hotel escorts because they give internal peace all the time. Escort girls not only fulfill your physical solicitations but also give you strong internal satisfaction. You may get lots of people who can fulfill a physical need but internal peace is a commodity veritably small people can give you. Our high-profile Independent escorts in Kolkata service provider always understand what your mind says. You do not need to say every time your demand.

She'll understand what your mind said! She's smarter than normal girls and as she's educated she can also understand your mind and your studies. Our high-profile escorts in Kolkata can attend any type of commercial party with you and you'll no way feel embarrassed with her. Kolkata escort can handle any type of situation that arises with you and try to resolve it as per her capability. She knows how to bear with her customers intimately and intimately. Noway feel reluctant with her because she always manages every situation that arises and she behaves veritably gently and typically. Whenever she's with you, no way feels like professional service. You'll always feel lovely with college escorts in Kolkata.

Explore Hot & Sexy Kolkata Call Girls

Yes, if you're open-inclined, ultramodern, and looking for some fun- fun-acquainted ultramodern girl as your mate in Kolkata, you should try Russian escorts in Kolkata now! Kolkata escorts service melts your heart and makes your life stupendous, enjoyable, and fun-loving. Try formerly our service whenever you're in Kolkata. Enjoy every lovable and sexy moment with a Kolkata escort and forget about all types of pressure and stress from life. Snare the stylish moment and forget about the stress. If you'll bespeak from us prior also we will also give great abatements and offers for celebrity escorts in Kolkata. Visit our website or call us because we will give 24 * 7 services.

We concentrate on safety and security as well. Snare the stylish deal from us and forget about all types of pressure. Check and select any type of service you wish! Kolkata escort services also have some exclusive services and you may choose any type of service you need.

Kolkata Service Available In Locality

Rajarhat Escorts || Behala Escorts || Shyambazar Escorts || Phoolbagan Escorts || Salt Lake Escorts || Tollygunge call girls || New Alipore Escorts || Kalighat call girls || Girish Park Escorts || call girls in Garia ||Call girls in Park Street || Chandni Chowk Escorts || Sealdah Escorts || Jadavpur Escorts || Barabazar Call girls || Beck Bagan Escorts || Esplanade Escorts || Howrah Escorts || Park Circus Escorts || Lake Town Escorts || Minto Park Escorts || New Town call girls || Kolkata Airport Escorts

 
ลิงค์ที่เกี่ยวข้อง : https://www.kanikasen.com/
Call Girls Kolkata Service [223.235.31.xxx] เมื่อ 17/10/2023 12:39
6704
อ้างอิง

Koby
Hi there great blog! Does running a blog like this require a large amount of work? I've very little expertise in coding however I had been hoping to start my own blog in the near future. Anyway, if you have any ideas or tips for new blog owners please share. I know this is off topic but I simply needed to ask. Many thanks!
 
ลิงค์ที่เกี่ยวข้อง : http://www.deancharlesassoc.com/__media__/js/netsoltrademark.php?d=www.fuckpussy.club
Koby [78.138.127.xxx] เมื่อ 17/10/2023 18:10
6705
อ้างอิง

Canlı Rulet
En iyi rulet siteleri, oyuncuların güvenle oynayabilecekleri lisanslı ve denetlenen sitelerdir. Canlı Rulet
 
Canlı Rulet [137.59.221.xxx] เมื่อ 17/10/2023 18:20
6706
อ้างอิง

Call Girls Kolkata Service

Tollygunge escorts

Sovabazar escorts

Shyambazar escorts

Shalimar escorts

Santoshpur escorts

Salt lake escorts

Rajarhat escorts

Phoolbagan escorts

Park street escorts

Park circus escorts

New alipore escorts

Minto park escorts

Kasba escorts

Kankurgachi escorts

Jadavpur escorts

Garia escorts

Esplanade escorts

Em bypass escorts

Girish park escorts

Chandni chowk escorts

Bidhannagar escorts

Belgachia escorts

Behala escorts

Beck bagan escorts

Barabazar escorts

Bhawanipore escorts

Ballygunge escorts

Baguiati escorts

Alipore escorts

Escort agency in Kolkata

Punjabi escorts in Kolkata

Independent escorts in Kolkata

Foreigner escorts in Kolkata

Housewife escorts in Kolkata

Bollywood escorts in Kolkata

Russian escorts in Kolkata

Air hostess escorts in Kolkata

call girls in Kolkata

High profile escorts in Kolkata

VIP model escorts in Kolkata

Celebrity escorts in Kolkata

Kolkata call girl phone number

Kolkata airport escorts

Indismart hotel Kolkata escorts

wise owl comfotel hotel Kolkata escorts

Ethnotel hotel Kolkata escorts

Eennra oiitijhyya hotel Kolkata escorts

Ananya hotel Kolkata escorts

Trimoorti hotel Kolkata escorts

Eastern plaza hotel Kolkata escorts

Rituivy hotel Kolkata escorts

The denmark tavern hotel Kolkata escorts

Kenilworth hotel Kolkata escorts

Beyzaa hotel Kolkata escorts

Golden tulip hotel Kolkata escorts

Siamton hotel Kolkata escorts

Pipal tree hotel Kolkata escorts

Radisson hotel Kolkata escorts

Swissotel hotel Kolkata escorts

Pride plaza hotel Kolkata escorts

Novotel hotel Kolkata escorts

Itc sonar hotel Kolkata escorts

Itc royal bengal hotel Kolkata escorts

Hyatt regency hotel Kolkata escorts

Vivanta hotel Kolkata escorts

Taj bengal hotel Kolkata escorts

Hindusthan international hotel Kolkata escorts

The lalit hotel Kolkata escorts

The oberoi grand hotel Kolkata escorts

Dumdum escorts

Science city escorts

Sealdah escorts

Howrah escorts

Lake town escorts

Camac street escorts

Dakshineswar escorts

New town escorts

Kalighat escorts

Jw marriott hotel Kolkata escorts

De sovrani hotel Kolkata escorts

The park hotel kolkata escorts

Kolkata escorts

Female escorts in Kolkata

Monotel hotel kolkata escorts

 
ลิงค์ที่เกี่ยวข้อง : https://www.kanikasen.com/
Call Girls Kolkata Service [223.235.31.xxx] เมื่อ 17/10/2023 18:58
6707
อ้างอิง

Priyanka Gulale
You are entitled to the best, as well as we have the most stunning and passionate women who will make you feel a hundred per cent. Prepared to discover the overview of your dreams? Beginning taking a look around currently! All sort of sexual enjoyment remain in one place. Our finest Bangalore escorts have actually been carefully picked to give you an unique experience that will make you really feel delighted. From sexy lingerie reveals to naughtier points to do, our gold selection of attractive Bangalore escort can make certain you have an amazing and euphoric evening. So, why don't you just do it? Let's treat you like a king or queen!

PriyankaGulale has some of the best and most captivating females Escorts in Bangalore. Whether you desire a peaceful evening in or a fun night out with buddies, these women will certainly make certain that your stay contains memories you will certainly never forget. From intending to please you to have smiles that light up the area, our stunning collection of Bangalore call girls has whatever you can want. So, why do not you just do it? Take this chance to try something special and also pricey that just the most effective of Bangalore can provide.

With the help of Bangalore escorts service, you can get the love that will never ever finish.

Wish to be loved and also taken care of? Why not work with a service that will provide you all the care and compassion you could want? They'll be there to make sure that your enchanting evening is excellent. Experiment with call girls in Bangalore as well as you'll see what makes us so one-of-a-kind. We assure you that you will not be pull down.

Our Independent Escorts in Bangalore have obtained adequate at what it does to meet all of your desires. We are only for you if you are gorgeous, skilled, and also very unbiased, and we guarantee that you will be completely pleased with us. You'll be astonished by what they know or exactly how great they go to what they do, and also you'll be happy as well as comfortable the whole time.

Why Should You Pick an Expert Call Girl in Bangalore?
When you work with a specialist Call girl in Bangalore, you get to be with a person you actually like, appreciate, or locate beautiful. If you're unhappy in a partnership, it's much better to rely on someone that appreciates your happiness and self-confidence. It can be a lot more pleasing to spend for their solutions.
 
 
Priyanka Gulale [45.121.2.xxx] เมื่อ 17/10/2023 19:57
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764765766767768769770771772773774775776777778
ความคิดเห็นของผู้เข้าชม
ชื่อผู้แสดงความคิดเห็น :
สถานะ : รหัสผ่าน :
ลิงค์ที่เกี่ยวข้อง :
รหัสความปลอดภัย :