Thursday, June 21, 2007

Kóbolt www.tool-tool.com

Bewise Inc. www.tool-tool.com Reference source from the internet.

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Járn Kóbolt Nikkel

Ródín
Útlit Kóbolt
Efnatákn Co
Sætistala 27
Efnaflokkur Hliðarmálmur
Eðlismassi 8900,0 kg/m³
Harka 5,0
Atómmassi 58,9332 g/mól
Bræðslumark 1768,0 K
Suðumark 3000,0 K
Efnisástand
(við staðalaðstæður)
Fast form
Lotukerfið

Kóbolt er frumefni með efnatáknið Co og er númer 27 í lotukerfinu.

[breyta] Almennir eiginleikar

Kóbolt er hart, silfurhvítt járnsegulefni. Það er oft tengt nikkel og bæði efnin einkenna loftsteinajárn. Spendýr þarfnast smárra skammta af Kóboltsöltum til að lifa. Kóbolt-60, sem er geislavirk samsæta þess, er mikilvægt sporefni og var notað við geislameðferð krabbameins. Kóbolt hefur tvo þriðju segulleiðni járns.

Algeng oxunarstig kóbolts eru +2 og +3 og jafnvel +1.

[breyta] Notkun

Co-60 er nytsamlegt sem uppspretta gammageisla að hluta til því að það getur verið framleitt í þekktum stærðum og í mjög stórum stíl með því að láta nifteindir dynja á náttúrulegu Kóbolti í kjarnaofni í ákveðinn tíma.


BW Bewise Inc. Willy Chen willy@tool-tool.com bw@tool-tool.com www.tool-tool.com skype:willy_chen_bw mobile:0937-618-190 Head &Administration Office No.13,Shiang Shang 2nd St., West Chiu Taichung,Taiwan 40356 TEL:+886 4 24710048 / FAX:+886 4 2471 4839 N.Branch 5F,No.460,Fu Shin North Rd.,Taipei,Taiwan S.Branch No.24,Sec.1,Chia Pu East Rd.,Taipao City,Chiayi Hsien,Taiwan

Welcome to BW tool world! We are an experienced tool maker specialized in cutting tools. We focus on what you need and endeavor to research the best cutter to satisfy users’ demand. Our customers involve wide range of industries, like mold & die, aerospace, electronic, machinery, etc. We are professional expert in cutting field. We would like to solve every problem from you. Please feel free to contact us, its our pleasure to serve for you. BW product including: cutting tool、aerospace tool .HSS Cutting tool、Carbide end mills、Carbide cutting tool、NAS Cutting tool、Carbide end mill、Aerospace cutting tool、Carbide drill、High speed steel、Milling cutter、Core drill、Tapered end mills、Metric end mills、Miniature end mills、Pilot reamer、Electronics cutter、Step drill、Metal cutting saw、Double margin drill、Gun barrel、Angle milling cutter、Carbide burrs、Carbide tipped cutter、Chamfering tool、IC card engraving cutter、Side cutter、NAS tool、DIN tool、Special tool、Metal slitting saws、Shell end mills、Side and face milling cutters、Side chip clearance saws、Long end mills、Stub roughing end mills、Dovetail milling cutters、Carbide slot drills、Carbide torus cutters、Angel carbide end mills、Carbide torus cutters、Carbide ball-nosed slot drills、Mould cutter、Tool manufacturer.

Bewise Inc. www.tool-tool.com

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