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利用少量貴重金屬、合金或陶瓷材料在零部件表面形成一層高硬度、耐磨、耐腐蝕層，既能滿足零件的強(qiáng)度韌性要求，又能滿足其硬度要求，很多情況下可代替鍍硬鉻或由于鍍硬鉻。
陶瓷噴涂噴涂是一種表面改性技術(shù)，是表面工程技術(shù)的重要組成部分，它是利用某種熱源（如燃?xì)?、電能），將粉末狀或絲狀的金屬或非金屬材料加熱到熔融或半熔融狀態(tài)，然后借助焰留本身或壓縮氣體以一定速度噴射到預(yù)處理過(guò)的基體表面，沉積而形成具有各種功能的表面涂層的一種工藝。（圖/文www.okcoco.cn）
中譯英：
By using a small amount of precious metals, alloys or ceramics in parts surface to form a high hardness, wear resistance, corrosion resistant layer, which can not only meet the parts strength toughness requirements, and can meet the requirements of its hardness, many cases can replace the hard chromium plating or as a result of hard chromium plating.
Ceramic spray coating is a kind of surface modification technique, it is the use of a heat source ( such as a gas, electricity), powder or filamentary metal or nonmetal material is heated to a molten or semi-molten state, and then uses the flame retention itself or a compressed gas to a certain speed jet to the pretreatment of the surface of the substrate, deposition formed with various features of the surface coating of a process.