為進一步強化濟南鋁板表面強度、增加壓應(yīng)力、提高疲勞壽命，濟南鋁板http://www.pdadn.com/成形后，要進一步進行滲氮、低溫液體碳氮共滲或硫氮共滲處理，然后經(jīng)噴丸強化。氮的滲入，不僅消除了脫碳的不良影響，而且還提高了殘余壓應(yīng)力，同時經(jīng)滲氮和低溫液體碳氮共滲的濟南鋁板高溫強度提高，150度時的變形量為0.2%，250度的變形量為0.56%，提高了濟南鋁板的熱穩(wěn)定性和抗松弛穩(wěn)定性，但滲氮和液體碳氮共滲時間應(yīng)嚴(yán)格控制，否則會形成網(wǎng)狀硫化物和網(wǎng)狀氮化物，反而會降低其疲勞強度。
To further strengthen Jinan aluminum surface strength, increased stress, improve fatigue life, Jinan aluminum after forming, to further nitriding, carbonitriding or cryogenic liquid sulfur and nitrogen permeation, and then by shot peening. Nitrogen infiltration, not only eliminates the adverse effects of decarbonization, but also improve the residual compressive stress, while the low-temperature liquid nitriding and carbonitriding Jinan improve high-temperature strength aluminum, the deformation of 150 degrees was 0.2%, 250 the degree of deformation of 0.56%, improved thermal stability and resistance to relaxation Jinan aluminum stability, but liquid nitriding and carbonitriding time should be strictly controlled, otherwise it will form a network sulfides and nitrides mesh, but will reduce its fatigue strength.

根據(jù)碳原子在固定中跨三的宏觀規(guī)律和微觀機制，借助非穩(wěn)態(tài)半穩(wěn)態(tài)半無限長物體的擴散的模型，以此為基礎(chǔ)推導(dǎo)出碳層深度數(shù)值計算模型，采用實驗和理論結(jié)合的方法對濟南鋁板http://www.pdadn.com/脫碳層深度計算結(jié)果進行驗證，結(jié)果表明在加熱溫度80度-1050度之間，加熱時間90min內(nèi)，實際結(jié)果和理論結(jié)果偏差小于10%。
The carbon atoms in fixed across the macroscopic and microscopic mechanisms three laws, with the proliferation of non-steady-state model of semi-static semi-infinite object as a basis to derive the carbon layer depth numerical model,using a combination of experimental and theoretical methods Jinan aluminum decarburization depth calculation results are verified, the results indicate that the heating temperature is between 80 ° -1050 °, heating time 90min, actual results and theoretical results deviation is less than 10%.