I loko o nā mea uila, he kuleana koʻikoʻi ko nā resistors i ka hoʻomalu ʻana i ke kahe o ke au. He mau ʻāpana koʻikoʻi lākou i nā mea hana mai nā kaapuni maʻalahi a i nā mīkini paʻakikī. Hoʻopilikia nui nā mea i hoʻohana ʻia no ka hana ʻana i nā resistors i kā lākou hana, kūpaʻa a me ka pono. I waena o lākou, he mea hoihoi nui nā mea hao-chromium-aluminum, nā mea nickel-chromium, a me nā mea keleawe-nickel ma muli o ko lākou mau waiwai kūikawā.
No ke aha e hana nui ai nā alloys i ka hana resistor
ʻO nā mea hoʻohuihui he mau hui ʻana o ʻelua a ʻoi aku paha mau mea, ʻo kekahi o ia mau mea he metala. Ua hana ʻia lākou e hoʻonui i nā waiwai kikoʻī e like me ka ikaika, ke kūpaʻa i ka pala a me ke kūpaʻa wela. I nā noi resistor, ʻo ke koho ʻana o ka mea hoʻohuihui e pili ana i ke koina mahana, ke kūpaʻa a me ka hana holoʻokoʻa o ka resistor.
He aha nā waiwai koʻikoʻi o nā alloys i hoʻohana ʻia i nā resistors
(1) Ke kū'ē: ʻO ka hana nui o kahi resistor ka hāʻawi ʻana i ke kū'ē i ke kahe o ke au. ʻO ka resistivity o ka alloy kahi mea nui i ka hoʻoholo ʻana i kona pono i ka hana ʻana i kēia hana. 2.
(2) Coefficient Mahana: Hōʻike kēia waiwai i ka nui o ke kū'ē'ē o kahi mea e loli ai me ka mahana. Pono nā mea pale i kahi coefficient mahana haʻahaʻa o ke kū'ē'ē e hōʻoia i ka hana paʻa ma luna o nā ʻano mahana like ʻole.
(3) Ke Kū'ē ʻana i ka ʻAi ʻAi: Hoʻopilikia pinepine ʻia nā mea pale i nā ʻano ʻino. He mea nui nā mea hao e kū'ē i ka oxidation a me ka pala no ka mālama ʻana i ke ola a me ka hilinaʻi o ka mea pale.
(4) Ikaika Mekanika: Pono nā mea pale e kū i ke kaumaha kino a me ke kaʻapuni wela. Hiki i nā mea hao me ka ikaika mechanical kiʻekiʻe ke kū i kēia mau kūlana me ka ʻole o ka hōʻino ʻia.
(5) Paʻa Wela: He mea koʻikoʻi ka hiki o kahi mea hoʻohuihui ke mālama i kona mau waiwai i nā mahana kiʻekiʻe, ʻoi aku hoʻi i nā noi mana kiʻekiʻe.
ʻO ka hao Chromium Aluminum Alloy - ka haku mele a me nā waiwai:
Nā mea hoʻohui hao-chromium-alumini(FeCrAl) ua kaulana no ko lākou kūpaʻa maikaʻi loa i ka oxidation a me ke kūpaʻa wela kiʻekiʻe. ʻO ka mea maʻamau i hana ʻia me ka hao, chromium a me ka alumini, ʻaʻole e hōʻino nui kēia mau mea hoʻohui i nā mahana a hiki i 1400°C (2550°F).
Nā noi ma nā Resistors：
Hoʻohana nui ʻia nā mea hao-chromium-alumini i nā mea pale wela kiʻekiʻe, ʻoi aku hoʻi i nā noi ma lalo nei:
- Nā ʻElemene Hoʻomehana: Hao Chromium Hoʻohana pinepine ʻia nā mea hoʻohuihui alumini e like me nā mea hoʻomehana i nā umu ʻoihana a me nā umu ma muli o ko lākou hiki ke mālama i ka kūpaʻa o ke kūkulu ʻana i nā mahana kiʻekiʻe.
- Nā pale mana: Hoʻohana ʻia kēia mau mea hoʻohui i nā pale mana e pono ai ke kūpaʻa wela kiʻekiʻe a me ke kūpaʻa oxidation.
- Nā noi kaʻa: I nā mea uila kaʻa, hoʻohana ʻia nā hui FeCrAl i nā resistors e hana ana i nā wahi mahana kiʻekiʻe, e like me nā ʻōnaehana hoʻopau.
Nā Nickel-Chromium Alloys - Ka Hoʻohuihui a me nā Waiwai:
ʻO nā hui nickel-chromium (NiCr) kekahi koho kaulana no nā noi resistor. ʻO ka maʻamau, ua hana ʻia kēia mau hui me ka nickel a me ka chromium, ʻo ka pakeneka o ia mea e pili ana i nā ʻano i makemake ʻia.Nā mea hoʻohui NiCrua kaulana ʻia no ko lākou kūpaʻa maikaʻi loa, hana wela kiʻekiʻe a me ke kūpaʻa i ka corrosion.
Hoʻohana pinepine ʻia nā mea hoʻohui Nichrome:
- Nā Pale Kiʻiʻoniʻoni: Hoʻohana ʻia kēia mau pale i nā noi kahi e koʻikoʻi ai ka pololei a kahi e hāʻawi ai ka NiCr alloy i ke kūpaʻa e pono ai a me ke koina mahana haʻahaʻa.
- Nā Pale Kū'ē Wirewound: I nā pale kū'ē wirewound, hoʻohana pinepine ʻia ka uea Nichrome ma muli o kona kūpaʻa kiʻekiʻe a me ka hiki ke kū i ke kaʻapuni wela.
- Nā Hoʻohana Mahana Kiʻekiʻe: E like me nā hui ferrochromium-aluminum, kūpono nā hui nickel-chromium no nā wahi mahana kiʻekiʻe, e kūpono ana iā lākou no nā noi ʻoihana a me nā aerospace.
Nā mea hoʻohui keleawe-nickel - ka haku mele a me nā waiwai
Ua ʻike ʻia nā hui keleawe-nickel (CuNi) no ko lākou conductivity uila maikaʻi loa a me ke kūpaʻa ʻana i ka pala. Loaʻa pinepine i kēia mau hui ke keleawe a me ka nickel, me nā waiwai kikoʻī i loaʻa ma ka hoʻololi ʻana i ka nui o ka nickel. He mea waiwai nui nā hui CuNi no ko lākou hiki ke mālama i ka hana ma nā wahi kai a me nā wahi ʻino ʻē aʻe.
Hoʻohana ʻia nā mea hoʻohui keleawe-nickel i nā ʻano hana resistor like ʻole, e like me:
- Nā mea kū'ē pololei: Ma muli o ko lākou conductivity maikaʻi loa a me ke kūpaʻa,Nā mea hoʻohuihui CuNihoʻohana pinepine ʻia no nā resistors precision i nā noi ana a me ka kaohi.
- Nā noi kai: ʻO ke kūpaʻa ʻana o nā hui CuNi i ka pala e kūpono ai lākou no nā pale i hoʻohana ʻia ma nā wahi kai kahi e hiki ai ke hōʻeha i ka wai paʻakai.
- Nā Hoʻohana Mahana Haʻahaʻa: Hana maikaʻi nā mea hoʻohui keleawe-nickel i nā wahi cryogenic, e kūpono ai lākou no nā hoʻohana mahana haʻahaʻa.
Loaʻa i nā mea hoʻohuihui FeCrAl, nichrome, a me ke keleawe-nickel nā waiwai kū hoʻokahi e kūpono ai lākou no nā ʻano hana like ʻole.
- Hana maikaʻi nā mea hoʻohui hao-chromium-alumini i nā wahi wela kiʻekiʻe a kūpono hoʻi no nā mea hoʻomehana a me nā mea pale mana.
- Hāʻawi nā hui nickel-chromium i ke kūpaʻa maikaʻi loa a me ke kūpaʻa i ka pala a kūpono hoʻi no nā mea pale kiʻiʻoniʻoni a me nā mea pale uea.
- Ua ʻike ʻia nā mea hoʻohui keleawe-nickel no ko lākou conductivity kiʻekiʻe a me ke kūpaʻa i ka pala a kūpono loa no nā pale pale pololei a me nā noi moana.
Ka manawa hoʻouna: Sep-26-2024
