Aloyi Wolimbana ndi CorrosionMtengo wa 400Pipe Yozungulira ya Nickel Alloy

Kufotokozera
Mtengo wa 400(UNS N04400 / 2.4360) ndi aloyi ya nickel-copper yokhala ndi mphamvu zambiri komanso kukana kwambiri pazofalitsa zosiyanasiyana kuphatikizapo madzi a m'nyanja, dilute hydrofluoric ndi sulfuric acid, ndi alkali.
Monel 400 yomwe ili ndi pafupifupi 30-33% yamkuwa mu nickel matrix ili ndi mawonekedwe ofanana ndi faifi tambala wamalonda, pomwe ikuwongolera ena ambiri. Kuphatikizika kwachitsulo kumathandizira kwambiri kukana kwa cavitation ndi kukokoloka kwa machubu a condenser. Zomwe zimagwiritsidwa ntchito kwambiri ndi Monel 400 zimakhala zothamanga kwambiri komanso kukokoloka monga m'mipingo ya propeller, ma propellers, masamba opopera, ma casings, machubu a condenser, ndi machubu osinthira kutentha. Kuwonongeka kwa madzi a m'nyanja oyenda nthawi zambiri kumakhala kosakwana 0.025 mm / chaka. Aloyiyo imatha kulowa m'madzi a m'nyanja osasunthika, komabe, kuwononga kwake kumakhala kochepa kwambiri poyerekeza ndi aloyi wamba wa 200. Chifukwa cha kuchuluka kwake kwa faifi tambala (pafupifupi 65%) aloyi nthawi zambiri imatetezedwa ndi chloride stress corrosion cracking. Kukana kwa dzimbiri kwa Monel 400 mu nonoxidizing mineral acids kuli bwino poyerekeza ndi faifi tambala. Komabe, imakhala ndi kufooka komweko kowonetsa kusachita bwino kwa dzimbiri kwa oxidizing media monga ferric chloride, cupric chloride, wet chlorine, chromic acid, sulfure dioxide, kapena ammonia. Mu njira yosasinthika ya hydrochloric ndi sulfuric acid solution aloyi imakhala yothandiza mpaka 15% kutentha kwa firiji mpaka 2% pa kutentha kwakukulu, osapitirira 50 ° C. Chifukwa cha chikhalidwe ichi, Monel 400 yopangidwa ndi NiWire imagwiritsidwanso ntchito m'njira zomwe zosungunulira za chlorinated zimatha kupanga hydrochloric acid chifukwa cha hydrolysis, zomwe zingayambitse kulephera muzitsulo zosapanga dzimbiri.
Monel 400 ili ndi kukana kwa dzimbiri kwabwino pa kutentha kozungulira kumagulu onse a HF popanda mpweya. Mayankho aaerated ndi kutentha kwapamwamba kumawonjezera kuchuluka kwa dzimbiri. Aloyiyo amatha kupsinjika ndi dzimbiri mumadzi onyowa aerated hydrofluoric kapena hydrofluorosilic acid. Izi zitha kuchepetsedwa ndi deaeration of the environments or with stress relieve anneal of the chigawo chomwe chikufunsidwa.
Zomwe zimagwiritsidwa ntchito ndi ma valve ndi mapampu, ma propeller shafts, zomangira zam'madzi ndi zomangira, zida zamagetsi, zida zopangira mankhwala, matanki a petulo ndi madzi amchere, zida zopangira mafuta, zotenthetsera madzi otentha ndi zina zosinthira kutentha.
Chemical Composition

Zofotokozera

Zakuthupi

Mechanical Properties

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