Nkọwa Ngwaahịa
A na-eji waya ndị a enamel eguzogide eme ihe nke ọma maka resistors nkịtị, ụgbọala
akụkụ, ihe mgbochi na-agbagharị agbagharị, wdg. site na iji nhazi mkpuchi kacha mma maka ngwa ndị a, na-eji uru zuru oke nke njirimara pụrụ iche nke mkpuchi enamel.
Ọzọkwa, anyị ga-eme mkpuchi enamel nke waya ígwè dị oké ọnụ ahịa dịka waya ọlaọcha na platinum mgbe a gwara anyị. Biko jiri mmepụta a mee ihe dịka ị chọrọ.
Ụlọ Karma
| aha | koodu | Isi Ihe mejupụtara (%) | Ọkọlọtọ
| |||
| Cr | Al | Fe | Ni | |||
| Karma | 6J22 | 19~21 | 2.5~3.2 | 2.0~3.0 | bọọlụ. | JB/T 5328 |
| Aha | Koodu | (20ºC) Resisti vity | (20ºC) Okpomọkụ. Coeff. Nke Nguzogide | (0~100ºC) Ọkụ EMF megide Ọla kọpa | Ọrụ kachasị g | (%) Elongati on | (N/mm2) Ndọkpụ Ike | Ọkọlọtọ |
| Karma | 6J22 | 1.33±0.07 | ≤±20 | ≤2.5 | ≤300 | >7 | ≥780 | JB/T 5328 |
4. Ihe pụrụ iche nke waya mgbochi Karma
1) Malite na waya ọkụ eletrik Nickel Chromium Klas 1, anyị jiri ụfọdụ Ni dochie ya
Al na ihe ndị ọzọ, wee si otú a nweta ihe nguzogide ziri ezi na mma
ihe na-eguzogide okpomọkụ na ike electromotive okpomọkụ megide ọla kọpa.
Site na mgbakwunye nke Al, anyị enweela ihe ịga nke ọma n'ime ka iguzogide olu dịkwuo elu ugboro 1.2
karịa waya ọkụ eletrik Nickel Chromium Klas nke 1 na ike nrụgide dị okpukpu 1.3 karịa.
2) Oke okpomọkụ nke abụọ nke waya Karmalloy KMW dị obere nke ukwuu, - 0.03 × 10-6/ K2,
na usoro okpomọkụ iguzogide na-aghọ ihe fọrọ nke nta ka ọ bụrụ ahịrị kwụ ọtọ n'ime obosara
oke okpomọkụ.
Ya mere, a na-ahazi ọnụọgụ okpomọkụ ka ọ bụrụ nkezi ọnụọgụ okpomọkụ dị n'etiti
23 ~ 53 °C, mana 1 × 10-6/K, nkezi oke okpomọkụ dị n'etiti 0 ~ 100 °C, nwekwara ike
a ga-eji ya mee ihe maka ọnụọgụ okpomọkụ.
3) Ike elektrọnịkị megide ọla kọpa dị n'etiti 1 ~ 100 °C dịkwa obere, n'okpuru + 2 μV/K, na
na-egosipụta ezigbo nkwụsi ike ruo ọtụtụ afọ.
4) Ọ bụrụ na a ga-eji nke a dị ka ihe na-eguzogide ihe kpọmkwem, ọgwụgwọ okpomọkụ dị ala bụ
achọrọ iji wepụ ihe mgbagwoju anya nhazi dịka ọ dị na waya Manganin CMW.
Ụdị ihe mkpuchi
| Aha ejiri mkpuchi kpuchie | Ọkwa okpomọkụ°C (oge ọrụ awa 2000) | Aha Koodu | Koodu GB | Ụdị ANSI |
| Waya enamel nke polyurethane | 130 | UEW | QA | MW75C |
| Waya enamel nke polyester | 155 | PEW | QZ | MW5C |
| Waya enamel nke polyester-imide | 180 | EIW | QZY | MW30C |
| Polyester-imide na polyamide-imide mkpuchi okpukpu abụọwaya enamel | 200 | EIWH (DFWF) | QZY/XY | MW35C |
| Waya enamel nke Polyamide-imide | 220 | AIW | QXY | MW81C |

150 0000 2421