At zuciyar kowane wutar lantarkin sararin samaniya shine kayan dumama. Komai girman na’urar dumama, komai zafi ne mai haske, ko mai cike da mai, ko kuma fanko, wani wuri a ciki akwai kayan dumama wanda aikinsa shine maida wutar lantarki zuwa zafi.

Sometimes za ka iya ganin dumama kashi, ja-zafi ta cikin wani m gasa. Wani lokacin kuma yana ɓoye a ciki, ana kiyaye shi ta hanyar kwanon ƙarfe da robobi, amma yana fitar da zafi duka iri ɗaya. Abin da aka yi na dumama da kuma yadda aka tsara shi kai tsaye yana shafar yadda injin ke aiki da kyau, da kuma tsawon lokacin da zai ci gaba da aiki.

Resistance Waya

BYa zuwa yanzu, kayan da aka fi amfani da su don dumama abubuwa sune wayoyi na ƙarfe ko ribbon, galibi ana kiran waya juriya. Ana iya murɗa su damtse ko amfani da su azaman lebur, dangane da tsarin na'urar. Yayin da guntun waya ya fi tsayi, ƙarin zafi zai haifar.

Tko da yake ana amfani da allurai daban-daban don aikace-aikace na musamman,Nichromeya kasance mafi mashahuri da ake amfani dashi don dumama sararin samaniya da sauran ƙananan kayan aiki.Nichrome 80/20 shine alloy na 80% nickel da 20% chromium.Waɗannan halayen sun sa ya zama kayan dumama mai kyau:

1. Ingantacciyar juriya
2. Sauƙi don aiki da siffa
3. Baya oxidize ko lalacewa a cikin iska, don haka yana dadewa
4. Ba ya faɗaɗa da yawa idan ya yi zafi
5. Babban wurin narkewa na kusan 2550F (1400°C)

OAlloys ɗin da ake samu a cikin abubuwan dumama sun haɗa da Kanthal (FeCrAl) da Cupronickel (CuNi), kodayake waɗannan ba a saba amfani da su a cikin dumama dumama.

yumbu heaters

Rkwanan nan, abubuwan dumama yumbu sun kasance suna girma cikin shahara. Waɗannan suna aiki a ƙarƙashin jagororin ƙarfin lantarki iri ɗaya kamar waya juriya, sai dai an maye gurbin ƙarfe da faranti na yumbura na PTC.

PTC yumbu (yawanci barium titanate, BaTiO3) ana kiransa da haka saboda yana da ingantaccen ƙarfin juriya na thermal, wanda ke nufin juriya yana ƙaruwa akan dumama. Wannan dukiya mai iyakancewa yana aiki a matsayin ma'aunin zafi na halitta - kayan yumbura suna zafi da sauri, amma faranti da zarar an kai ga zafin da aka rigaya. Lokacin da yanayin zafi ya ƙaru, juriya yana ƙaruwa, yana haifar da raguwar fitarwar zafi. Wannan yana ba da dumama iri ɗaya ba tare da bambancin wutar lantarki ba.

TAbubuwan da ake amfani da su na yumbura heaters sun haɗa da:

1. Saurin dumama
2. Ƙananan zafin jiki, rage haɗarin wuta
3. Tsawon rai
4. Ayyukan sarrafa kai

In galibin masu dumama sararin samaniya, fa'idodin yumbu suna tsararru a cikin tsarin saƙar zuma, kuma an haɗa su da baffles na aluminium waɗanda ke jagorantar zafi daga na'urar zuwa cikin iska, tare da mu ba tare da taimakon fanfo ba.

Radiant ko Infrared Heat Lamps

Tya filament a cikin kwan fitila yana aiki azaman tsayin waya mai juriya, ko da yake an yi shi da tungsten don ƙarin fitowar haske lokacin zafi (wato, incandescence). Filament mai zafi yana lullube a cikin gilashi ko ma'adini, wanda ko dai ya cika da iskar gas ko kuma fitar da iska don kare shi daga iskar oxygen.

IA sarari hita, zafi fitila filament ne yawanciNichrome, kuma ana ciyar da makamashi ta cikinsa a ƙasa da matsakaicin ƙarfi, ta yadda filament ɗin ke haskaka infrared maimakon haske mai gani. Bugu da ƙari, sheathing quartz sau da yawa ana yin tinted ja don rage yawan hasken da ke fitowa (zai zama mai zafi ga idanunmu, in ba haka ba). Na'urar dumama yawanci tana goyan bayan wani abin haskakawa wanda ke jagorantar zafi a hanya guda.

TAmfanin fitilun zafi masu haskakawa sune:

1. Babu lokacin zafi, kuna jin zafi nan da nan
2. Yi aiki a shiru, tunda babu iska mai zafi da ke buƙatar fanka
3. Samar da dumama wuri a buɗaɗɗen wurare da waje, inda iska mai zafi za ta bace

Nko da wane nau'in dumama injin ku, akwai fa'ida ɗaya da dukkansu suka mallaka: na'urorin juriya na lantarki suna da inganci kusan 100%. Wannan yana nufin duk wutar lantarkin da ke shiga resistor ta zama zafi don sararin ku. Wannan fa'ida ce kowa zai iya yabawa, musamman idan lokacin biyan kuɗi ya zo!