สถิติ
เปิดเมื่อ28/01/2015
อัพเดท19/06/2024
ผู้เข้าชม2243587
แสดงหน้า2760099
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 756375 | 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 :
6518
อ้างอิง

Ahmedabadescorstgin
Could you ever think about going to all the biggest events together with sexy chick? They can additionally make you a great company while you see different monuments, along with grand dinners, special style shows, renowned events and others. Prepare yourself to come to be the actual centre of everyone's interest, because those ladies from Ahmedabad Escorts absolutely recognize what all the men crave for. Escort Pune is your dependable companion worldwide of lust. Just below you can ultimately make all your secret desires happen.
Click our Delhi Escort City Classified Site: Delhi Escorts
Click our Gurgaon Escort City Classified Site: Gurgaon Escort
Click our Pune Escort City Classified Site: Pune Escorts

What to Get Out Of Ahmedabad Escort?
Each and every Ahmedabad Escort lady of ours are classy entertainers when it involves sex as well as have excellent skills that will leave your speechless. Feel free to browse with photo galleries in order to have a look at those impressive body curves as well as radiant faces, which our chicks do not mind revealing in any way.
 
Click our Ranchi Escort City Classified Site: Ranchi Escort
Click our Kerala Escort City Classified Site: Kerala Escort
Click our Mumbai Escort City Classified Site: Mumbai Escorts

Apart from classy escort services Ahmedabad during the day time, our voluptuous escort rouges can most definitely use astounding companion during the night, when nobody sees you. My word, you might never think of such an extraordinary lechery.
 
Click our Jaipur Escorts City Classified Site: Jaipur Escorts
Click our Goa Escort City Classified Site: Goa Escort
Click our Chandigarh Escort City Classified Site: Chandigarh Escort

Alluring rouges from Ahmedabad Call Girls originate from diversified nations. Hereby, you rate to select from Bangalore, Mumbai, Delhi, Pune, Hyderabad, Chandigarh as well as numerous others Cities. Just specify your interest and we will deal with the rest. Supply your personal information in the enrollment form and you will be approved with direct accessibility to our brochures of Ahmedabad Independent escort hotties. You can customize your search with help of different classifications. Feel free to choose conventional, VIP, ruby and also other categories of companion solutions depending on your budget., as they possess one of the most appropriate skills. So, feel free to make your wishes become a reality with help of oral sex, escort massage therapy, cosplays, roleplay, BDSM, sex toys, ass-fucking, handjobs, footjobs, pissing, group sex and also numerous others. Our whores will certainly do their greatest to satisfy you.
Click our Patna Escort City Classified Site: Patna Escort
Click our Vadodara Escort City Classified Site: Vadodara Escort

Reliability of Escort Ahmedabad Solutions

All the exclusive documents are treated with maximum care to guarantee that it remains completely secure regardless of anything. Premium-quality Escort services as well as full safety of procedures bring in new clients to Escort Ahmedabad Sur Saone daily. Therefore, don't squander a solitary minute any longer and discover the memorable pleasures of Companion Liege and also satisfy its hot women, because you will plainly like that!
 
Ahmedabadescorstgin [45.121.2.xxx] เมื่อ 3/10/2023 22:30
6519
อ้างอิง

Ava
This paragraph provides clear idea designed for the new viewers of blogging, that truly how to do running a blog.
 
ลิงค์ที่เกี่ยวข้อง : https://evigetir.com/Zeytinburnu-Nakliye-ro-sa
Ava [43.245.119.xxx] เมื่อ 3/10/2023 23:32
6520
อ้างอิง

Hepsibahis
Hem site sahibi firmalar; hem de bu siteleri kullanan internet müdavimleri, artık duruma alışmış, sorunu nasıl çözeceği konusunda fikri bulunan insanlardır. ​Hepsibahis
 
 
Hepsibahis [137.59.221.xxx] เมื่อ 4/10/2023 00:37
6521
อ้างอิง

team management
https://breadstack.com/ecommerce-operations/team-management/
Good article and it’s very inspiring. Keep going!
 
 
ลิงค์ที่เกี่ยวข้อง : https://breadstack.com/ecommerce-operations/team-management/
team management [122.52.186.xxx] เมื่อ 4/10/2023 04:06
6522
อ้างอิง

Clarence
Incredible points. Solid arguments. Keep up the amazing effort.
 
ลิงค์ที่เกี่ยวข้อง : http://buy-backlinks.rozblog.com/
Clarence [43.225.191.xxx] เมื่อ 4/10/2023 07:15
6523
อ้างอิง

Cathleen
This article offers clear idea in favor of the new users of blogging, that truly how to do running a blog.
 
ลิงค์ที่เกี่ยวข้อง : https://youlike191.co/
Cathleen [71.86.129.xxx] เมื่อ 4/10/2023 08:31
6524
อ้างอิง

BangaloreEscortsGin
We have actually been doing a little study over the past couple of days, as well as it has become very clear that the Bangalore is significantly doing not have in quality Escorts everywhere except Bangalore. The information is there for any person to see truly. If you were to visit Adult work as an example and also do a regional look for Bangalore escorts in your location, you would yield a woeful quantity of quality women. It's just really when you start to get in the postal codes that you start to get more women; not just a lot more, much better likewise.
 
Click our Delhi Escort City Classified Site: Delhi Escorts
Click our Gurgaon Escort City Classified Site: Gurgaon Escort
Click our Pune Escort City Classified Site: Pune Escorts


Even one of the most cursory check out useful discussion forums discovered on enthusiast web sites like Put internet, say the very same point. They are constantly grumbling concerning the quality and also selection of girls in other places in the Bangalore. There are avid punters on those discussion forums that are currently waiting to obtain themselves to Bangalore; looking for factors to find to disguise their purposes, or conserving up money etc. They all become aware that Bangalore is the most effective area to publication Escorts Service, it's just a matter of time up until they get right here!

Even companies in cities like Delhi, Mumbai as well as others do not have a lot of High Profile Bangalore Escorts ladies. Not only that, yet they likewise tend to be parlours, or primarily outcall services. So, unless you wish to most likely to a seedy (prohibited) brothel that every person around finds out about, as well as try to hide your face as you go in, you do not have a great deal of choice.
 
Click our Ranchi Escort City Classified Site: Ranchi Escort
Click our Kerala Escort City Classified Site: Kerala Escort
Click our Mumbai Escort City Classified Site: Mumbai Escorts


The Independent Escort Concern

When we discuss internet sites like Adult work etc it increases a lot more concerns. As well as these concerns are even more typical beyond Bangalore in the remainder of The Bangalore independent Escort girls that market on there, are not always what they seem to be. Confirmation aside (which can conveniently be manipulated), you never ever know if the girl you see online is in fact going to be the lady behind the door. It's never ever guaranteed, as well as there is a great deal of 'trickery' taking place. The beauty of reserving via a trustworthy Bangalore Escorts agency of course, is that bait and switch can not take place; it's quickly reported to the firm and the woman's profile is removed.
 
Click our Jaipur Escorts City Classified Site: Jaipur Escorts
Click our Goa Escort City Classified Site: Goa Escort
Click our Chandigarh Escort City Classified Site: Chandigarh Escort
 


There is additionally the problem of human trafficking to take into consideration. If you see Call girls in Bangalore on these big directory sites, from various nations, and their profiles as well as solutions are written in outstanding English, possibilities are that she is being managed by somebody else who is managing her bookings. It's not definite, yet it's definitely something that you should attempt to stay clear of.

So, our guidance for any individual searching for great Female escorts Service in the Bangalore, When you show up and also you see one of the women from our firm (or some of the other leading agencies), you will certainly soon uncover that the girls you have been seeing (and driving miles to get to) are simply substandard in comparison.
 
Click our Patna Escort City Classified Site: Patna Escort
Click our Vadodara Escort City Classified Site: Vadodara Escort
Click our Lucknow Escort City Classified Site: Lucknow Escort


On top of that, Bangalore Escorts Service supplies you privacy. This is especially real if you're not from here. Which is why Bangalore is the leading selection for travelling hobbyists. You never ever obtain a Escort lover travelling up to Bangalore for the weekend break to check out the escorts there! Why would they trouble when they have much more option than anywhere else in the country-- or indeed the world!

Bangalore Has Selection

There are countless escorts in Bangalore at any kind of one-time, and also they originate from all over the world. You are indeed spoiled for option when you come here. Our company alone typically has up to and also over 200 girls to select from. We have ladies from all over India.

Not That Pricey

It's not that expensive to come to Bangalore either nowadays. When you think about at all times and also money you squander on seeing Bangalore Escort girls in lousy areas, you might too utilize that cash to acquire a train ticket and a low-cost hotel for the night. We're sure you can manage to see a couple of ladies throughout your check out likewise, so isn't it time that you conserved up a little bit of cash, and had on your own a mischievous weekend break? You can constantly locate bargains on the internet for resorts, right in the heart of the activity. Or certainly the heart of escort task! For instance, there are great deals of hotels as well as house services in the W2 area of Bangalore, where you will certainly find tons of Paddington, and also Bayswater escort women.

As always, if you desire any more details about our company, or the women we represent, don't wait to get in touch. We enjoy to assist you with any type of affordable request, and we can always point you towards the best girls in Bangalore.
 
BangaloreEscortsGin [45.121.2.xxx] เมื่อ 4/10/2023 08:46
6525
อ้างอิง

Willa
If you want to get much from this paragraph then you have to apply these methods to your won website.
 
ลิงค์ที่เกี่ยวข้อง : https://evigetir.com/Evden-Eve-Nakliye-lv-do
Willa [38.154.217.xxx] เมื่อ 4/10/2023 09:32
6526
อ้างอิง

Harry
Whats up very nice site!! Man .. Beautiful .. Superb .. I'll bookmark your site and take the feeds also? I'm happy to seek out so many helpful information right here in the post, we want develop more techniques on this regard, thank you for sharing. . . . . .
 
ลิงค์ที่เกี่ยวข้อง : https://evigetir.com/Ev-Ta%C5%9F%C4%B1ma-dk-br
Harry [104.238.38.xxx] เมื่อ 4/10/2023 12:25
6527
อ้างอิง

kancilbola
Keberuntungan yang selalu datang dari situs <a href='https://kancilbolaslot.com' rel='dofollow'>kancilbola</a>

Langsung di coba dan pastikan sendiri keberuntungan situs <a href='https://kancilbola.store' rel='dofollow'>kancilbola</a>
 
kancilbola [103.134.94.xxx] เมื่อ 4/10/2023 12:43
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315316317318319320321322323324325326327328329330331332333334335336337338339340341342343344345346347348349350351352353354355356357358359360361362363364365366367368369370371372373374375376377378379380381382383384385386387388389390391392393394395396397398399400401402403404405406407408409410411412413414415416417418419420421422423424425426427428429430431432433434435436437438439440441442443444445446447448449450451452453454455456457458459460461462463464465466467468469470471472473474475476477478479480481482483484485486487488489490491492493494495496497498499500501502503504505506507508509510511512513514515516517518519520521522523524525526527528529530531532533534535536537538539540541542543544545546547548549550551552553554555556557558559560561562563564565566567568569570571572573574575576577578579580581582583584585586587588589590591592593594595596597598599600601602603604605606607608609610611612613614615616617618619620621622623624625626627628629630631632633634635636637638639640641642643644645646647648649650651652653654655656657658659660661662663664665666667668669670671672673674675676677678679680681682683684685686687688689690691692693694695696697698699700701702703704705706707708709710711712713714715716717718719720721722723724725726727728729730731732733734735736737738739740741742743744745746747748749750751752753754755756757758759760761762763764765766767768769770771772773774775776777778779780781782783784785786787788789790791792793794795796797798799800801802803804805806807808809810811812813814815816817818819820821822823824825826827828829830831832833834835836837838839840841842843844845846847
ความคิดเห็นของผู้เข้าชม
ชื่อผู้แสดงความคิดเห็น :
สถานะ : รหัสผ่าน :
ลิงค์ที่เกี่ยวข้อง :
รหัสความปลอดภัย :