Nichrome spiral: thepa le kopo

bophelo ba kajeno ke ha khoneha ho nahana ntle le palo e khōlō ea lisebelisoa tse sa tšoaneng. Bakeng sa ba bangata ba bona Nichrome spiral ke karolo e khōlō - "pelo" ea mochine ena. Ho thepa ea elektronike, lisebelisoa mochini, lithulusi tsa motlakase sebelisoa bophelong ba letsatsi le letsatsi le ka ho hlahisa khōlō, e ka ho toba e itšetlehileng ka terata le motsoako pele.

tlhaloso

Ka 1905, American rasaense Albert Marsh qaptjoa ho kopana chromium le nikele. The moralo patented tjena 20% chromium le 80% nikele. motsoako o ile oa e mong ea bitsoang - nichrome. Qalong, ho ne ho se ligation (likarolo refractory) ka motsoako le e ne e le motsoako peli motsoako. Kajeno hoa khoneha ho fumana variants le dikahare nikele ea 55% le chromium 15%. Litšila ke tšepe, ka silicon, a mankanese a, aluminium, thaethaniamo, molybdenum, ka silicon. Ho na le tse fetang tse leshome "diresepe" tšepe oela tlas'a eona ke hore na nichrome.

Nichrome spiral nang le ka ho fetisisa phahameng resistivity fetohile bohlokoa haholo karolo ea lisebelisoa tse ngata le liletsa. Ho ea nang le bokhoni ea withstanding phahameng mocheso ho kena moea ka tsela e tloaelehileng le ka libakeng senyang. motsoako ona o thepa e loketseng ea ho ba teng ha chromium eo e bopa holim'a sehlooho se reng, ea sireletsang oxide e filimi. O ile a pente ea motsoako ka 'mala o lefifi. Haeba u tlosa (by bohato phetha molao) lera oxidized, liphetoho bb ho bohlooho whitish.

Y binary motsoako ha thepa a khoheli, diphetolo multicomponent ka attenuated entsprechen. Nichrome spiral e matsutla le tse ntle ductility. Terata e etsoa ka karolo e fapaneng ho tloha limilimithara 0,01 ho 10. makgetheng senotlolo kenyeletsa:

• motlakase resistivity - OM`m 1100-1400;
• ntlha qhibilihang ho likhato 1400 (ho sebetsa mefuta e fapaneng - 800-1100 likhato Celsius);
• segokanyipalo - 8200-8500 lik'hilograma / noun m ^3;
• matla a - 650-700 MPa.

thepa lintho tse bonahalang ea kopana le phahameng ka ho fetisisa ditlhoko theknoloji.

menyetla

Telele le matla tlhokeho ya dikarolo tloha Nichrome motsoako ka lebaka la litšobotsi tse hlollang:

• ha ho ya ts'enyeho;
• tlaase boima;
• bonolo ho thulaganyou e (habonolo ea litututsoana le welded);
• Ho na le e phahameng mocheso ho hanyetsa;
• tsoarellang le tenyetsehang ka nako e tšoanang;
• tšoauoa ka e ile ea eketseha ho hanyetsa libakeng mabifi;
• E na le bophelo bo bolelele tšebeletso.

Molemo o mong oa bohlokoa ke ho hanyetsa phahameng ho jwale motlakase. Ka liketso, paramethara ena e fa batho ba ka tlaase Nichrome (Nichrome spiral e khutsoanyane bolelele) ho fumana mocheso o fetang ka, ka mohlala, ho ba setho tšepe. Ka lehlakoreng le leng, e le tse nyenyane tse palo tsa tšepe ka fokotsa boima ba 'mele le boholo ba sethusathuto kaofela. Ka ba molemo e ka sehloohong ea nichrome - motswako wa kaofela metrics tsena ka lintho tse bonahalang tse e tšoanang.

mefuta e

Nichrome spiral ka entsoe ka diphetolo tse sa tšoaneng tsa motsoako 'me ba ea le tsona ka botenya e fapaneng. Litempe ke fapaneng ka sebopeho bona le ba arohaneng (tlas'a maemo) ka lihlopha tse tharo tse ka sehloohong:

• Resistor: H20N80 (20% chromium 80% nikele); H20N73YUM-VI (20% chromium 73% nikele, 3% aluminium, 1.5% molybdenum, ho fihlela ho 0,3% mankanese, ho fihlela ho ya 0.05% thaethaniamo, 2% tšepe, ho fihlela ho ya 0.05% k'habone , qhibilihile lephaka mokhoa induction).
• Bakeng sa ho sebelisoa ka thempereichara e ka holimo ho likhato tse 900.
• Bakeng sa likarolo futhumatsang le eketseha ho hanyetsa mocheso ho phahameng: HN70YU-H (27% chromium 70% nikele, 3% aluminium, ho fihlela ho 0,3% mankanese, ho fihlela ho 0,03% ya cesium, le 0,1% ea barium le 1, 5% tšepe, ho fihlela ho 0,1% k'habone).

Ka boholo ba metsoako e constituent, thepa ea motsoako ho itshetlehile. A palo e kholo ea chromium thibela ho kena moea.

Boholo

Har'a ka ho fetisisa o ile a batla ka mor'a lintho tse bonahalang nichrome terata amana lihlahisoa 'marakeng motlakase. Helix ea motsoako ona e sebelisoa ka dikai tse ngata tsa heaters motlakase. mesebetsi ea matsoho sebelisa lapeng bakeng sa:

• sethusathuto tukang lehong;
• sebopi maiketsetso bakeng sa a betsa letsopa;
• ka potlako futhumatsang disebedisweng tse ding tsa tšepe tse itseng ka smithy ea;
• ho hlahisa futhumatsang merero bonolo ( "lipōli");
• maiketsetso welders.

Tshebediso liindasteri tsa chromium nikele ka disebediswa ba ntlo pharaletseng: dryers moriri, litšepeng, heaters, kulo litšepeng, motlakase le tse ling. Terata le kgolo-karolo le sefapano se e sebediswa bakeng sa dikopo jarolla ka ho iketsa tjheseletsa. Joalo motsoako e ka fumanoa thepa laboratori ea le tšimo ea elektronike. Nichrome terata e sebediswa moo hlokahalang ho hanyetsa mocheso ho phahameng le libakeng senyang.