Nickel-chromium (Nichrome) alloy waya dzinoshandiswa zvakanyanya mukudziya, zvemagetsi, uye maindasitiri minda nekuda kwekunaka kwazvo kwepamusoro-tembiricha kuramba uye kushanda kwakagadzikana kwemagetsi. Pakati pavo,Nicr7030uyeNicr8020ndiwo maviri emhando dzakakurumbira, asi pane misiyano yakakura mukuumbwa, kuita, uye mamiriro ekushandisa. Pazasi kuenzanisa kwakadzama kukubatsira kuita sarudzo dzekutenga uine ruzivo:

Kuenzanisa Dimension	Nicr7030	Nicr8020	Mamwe Mamodheru Akajairika (semuenzaniso, Nicr6040)
Kuumbwa Kwemakemikari	70% Nickel + 30% Chromium	80% Nickel + 20% Chromium	60% Nickel + 40% Chromium
Maximum Continuous Operating Temperature	1250°C (Nhengo yenguva pfupi: 1400°C)	1300°C (Nhengo yenguva pfupi: 1450°C)	1150°C (Nhengo yenguva pfupi: 1350°C)
Kuramba Kwemagetsi (20°C)	1.18 Ω·mm²/m	1.40 Ω·mm²/m	1.05 Ω·mm²/m
Ductility (Elongation panguva yeBreak)	≥25%	≥15%	≥20%
Oxidation Resistance	Yakanakisa (dense Cr₂O₃ firimu)	Yakanaka (yakakora oxide firimu)	Yakanaka (yakangoita peeling panguva yakakwira)
Weldability	Superior (zviri nyore kubatanidza nemaitiro akajairwa)	Moderate (inoda kunyatso kudzora parameter)	Pakati nepakati
Mutengo-Kubudirira	Yakakwirira (yakaenzana kuita uye mutengo)	Pakati (yepamusoro nickel yemukati inowedzera mutengo)	Yakaderera (dikidiki application scope)
Mamiriro Ekushandisa Akajairika	Midziyo yemumba, kudziyisa kwemaindasitiri, kudziyisa mota, zvemagetsi zvemagetsi	High-tembiricha maindasitiri mavira, nyanzvi kudziyisa michina	Low-tembiricha kudziyisa michina, general resistors

Detailed Difference Analysis

1. Mushonga Wemakemikari & Core Performance

Musiyano mukuru uri mureshiyo yenickel-chromium: Nicr7030 ine 30% chromium (yakakwirira kupfuura Nicr8020's 20%), iyo inosimudzira ductility uye weldability. Nekurebesa pakupera kwe ≥25%, Nicr7030 inogona kukweverwa muwaya dzakatsetseka (kudzika kusvika 0.01mm) kana kukotama kuita maumbirwo akaomarara, zvichiita kuti ive yakakodzera kune zvigadzirwa zvinoda kunyatsogadziriswa (semuenzaniso, mota dzechigaro kupisa waya, miniaturized zvemagetsi sensors).

Kusiyana neizvi, Nicr8020's yepamusoro nickel content (80%) inovandudza kugadzikana kwayo kwepamusoro-tembiricha, zvichiita kuti irambe ichishanda pa1300°C—50°C yakakwirira kudarika Nicr7030. Nekudaro, izvi zvinouya pamutengo wekuderedzwa ductility (chete ≥15%), zvichiita kuti isanyanya kukodzera kukotama kana kugadzira maitiro. Mamwe mamodheru akaita seNicr6040 ane yakaderera nickel zvemukati, zvichikonzera kushomeka kwekudzivirira uye tembiricha kuramba, kudzikamisa kushandiswa kwavo kune yakaderera-inoda mamiriro.

2. Resistivity & Energy Efficiency

Resistivity inobata zvakananga kupisa kwekushanda uye chikamu chekugadzira. Nicr8020 ine yakakwirira resistivity (1.40 Ω·mm²/m), zvichireva kuti inogadzira kupisa kwakawanda pahurefu hweyuniti pasi peiyo yazvino, ichiita kuti ive yakakodzera compact high-simba kudziyisa zvinhu (semuenzaniso, high-tembiricha sintering mavira).

Nicr7030's moderate resistivity (1.18 Ω·mm²/m) inobata chiyero pakati pekugadzira kupisa uye kushandiswa kwesimba. Kune akawanda maindasitiri uye evatengi maapplication (semuenzaniso, ovheni, ekudziya pads), inopa yakakwana yekudziya simba uku ichideredza kutambisa simba. Pamusoro pezvo, kugadzikana kwayo kwakagadzikana (± 0.5% kushivirira) kunogonesa kuita kwakagadzikana pamusoro pekushandiswa kwenguva refu, kudzivirira kushanduka kwekushisa.

3. Oxidation Resistance & Service Life

Ose ari maviri Nicr7030 uye Nicr8020 anoumba ekudzivirira Cr₂O₃ mafirimu pakupisa kwakanyanya, asi Nicr7030's yepamusoro chromium yemukati inogadzira denser, yakasimba firimu. Izvi zvinoita kuti isamirire ku "green rot" (intergranular oxidation) mune hunyoro kana kudzikisira mamiriro ekunze, ichiwedzera hupenyu hwayo hwesevhisi kusvika 8000+ maawa (20% kureba kupfuura Nicr8020 munzvimbo dzakaoma).

Nicr6040, ine yakaderera chromium zvirimo, ine zvishoma kugadzikana oxide firimu iro rinoita kusvuura patembiricha iri pamusoro pe1000 ° C, zvichikonzera kupfupikiswa kwehupenyu hwesevhisi uye kuwedzera mari yekugadzirisa.

4. Mutengo & Kugadziriswa Kwekushandisa

Nicr7030 inopa hukuru hwemutengo-hunoshanda: yakaderera nickel yemukati (ichienzaniswa neNicr8020) inoderedza mitengo yezvigadzirwa ne15-20%, nepo kuita kwayo kwakasiyana-siyana kuchivhara 80% yemamiriro ekushandisa waya yenichrome. Ndiyo sarudzo inosarudzika yezvigadzirwa zvakakura-zvakagadzirwa semidziyo yemumba uye masisitimu ekudziya mota, uko kuyera kuita uye mutengo kwakakosha.

Nicr8020's yepamusoro nickel yemukati inowedzera mutengo wayo, zvichiita kuti ive yakakosha kune yakasarudzika yepamusoro-tembiricha maapplication (semuenzaniso, aerospace component test). Mamwe akaderera-nickel modhi seNicr6040 akachipa asi anoshaya maitiro ekusangana nemaindasitiri kana nemazvo emagetsi zvinodiwa.

Sarudzo Guide

• SarudzaNicr7030kana uchida: Kuita kwakasiyana-siyana, kugadzirwa kuri nyore (kukotama/welding), kudhura-kunyatsoshanda, uye kushandisa mumidziyo yemumba, kudziyisa mota, kudziyisa mumaindasitiri, kana zvemagetsi chaiwo.
• SarudzaNicr8020kana uchida: Yepamusoro tembiricha yekushanda (1300°C+) uye compact yakakwirira-simba kudziyisa zvinhu (semuenzaniso, nyanzvi dzemaindasitiri mavira).
• Sarudza mamwe mamodheru (semuenzaniso, Nicr6040) chete kune yakaderera-tembiricha, yakaderera-inodiwa mamiriro (semuenzaniso, basic resistors).

Nekuita kwayo kwakaringana, kudhura-kushanda, uye kuchinjika kwakafara, Nicr7030 ndiyo sarudzo inodhura zvakanyanya kune vazhinji vatengi. Kambani yedu inopa zvakatemwa zvakatemwa (dhayamita, kureba, kurongedza) uye tekinoroji rutsigiro kuti ive nechokwadi chekuti Nicr7030 inoenderana zvakakwana nezvido zvako zvekushandisa.