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工件（鋼鐵或鋁、鋅件）浸入磷化液（某些酸式磷酸鹽為主的溶液），在表面沉積形成不溶于水的結(jié)晶型磷酸鹽轉(zhuǎn)化膜的過(guò)程，稱之為磷化。
The workpiece (iron or steel or aluminum, zinc parts) immersed in phosphating solution (some acid phosphate based solution), the surface of the formation of insoluble in water soluble crystalline phosphate conversion film process, called the phosphating.
把金屬放入含有錳、鐵、鋅的磷酸鹽溶液中進(jìn)行化學(xué)處理，使金屬表面生成一層難溶于水的磷酸鹽保護(hù)膜的方法，叫做金屬的磷酸鹽處理。磷化膜層為微孔結(jié)構(gòu)，與基體結(jié)合牢固，具有良好的吸附性、潤(rùn)滑性、耐蝕性、不粘附熔融金屬（Sn、Al、Zn）性及較高的電絕緣性等。
The metal into the phosphate solution containing manganese, iron, zinc, chemical treatment, so that the metal surface to form a layer of water soluble phosphate protective film method, called the metal phosphate treatment. The phosphating film is micro porous structure, which is firmly combined with the substrate, and has good adhesion, lubrication, corrosion resistance, non adhesion molten metal (Sn, Al, Zn) and high electrical insulation.
磷化分類：
Phosphating classification:
按合金鋼板處理溫度分：高溫型（75-100℃，能耗大，磷化物沉積多，形成的磷化膜厚度達(dá)10-30g/㎡）、中溫型（50-75℃，處理時(shí)間5-15min，磷化膜厚度達(dá)1 -8g/㎡）、低溫型（30-50℃）和常溫型（10-30℃，節(jié)省能源，使用方便，除加氧化劑外還加促進(jìn)劑，能耗小，但溶液配制較復(fù)雜，膜厚度達(dá)0.2-7g/㎡）。

According to the alloy steel plate processing temperature: high temperature (75-100 DEG C, high energy consumption, multi phosphating film thickness phosphide deposition, the formation of up to 10-30g/ meters) and medium temperature (50-75 DEG C, processing time 5-15min, phosphating film thickness of 1 -8g/ m) and low temperature (30-50 DEG C) and room temperature (10-30 DEG C, save energy, easy to use, in addition to oxidants and accelerant, the energy consumption is small, but the solution is complicated, the membrane thickness of 0.2-7g/ m).
按磷化液成分分：鋅系磷化、鋅鈣系磷化、鋅錳系磷化、鐵系磷化、錳系磷化和復(fù)合磷化等。
According to the composition of phosphating solution: zinc phosphating, zinc calcium series phosphating, zinc manganese series phosphating, iron phosphating, manganese series phosphating and composite phosphating, etc..
按磷化處理方法分：化學(xué)磷化、電化學(xué)磷化。
According to the phosphating treatment method: chemical phosphating, electrochemical phosphating.
按磷化膜質(zhì)量分：重量級(jí)（膜重7.5g/㎡以上）、次重量級(jí)（膜重4.6-7.5g/㎡）、輕量級(jí)（膜重1.1-4.5g/㎡）和次輕量級(jí)（膜重0.2-1g/㎡）。
According to the quality of the phosphating film is divided into: (more than 7.5g/ square meters heavyweight film weight), heavyweight (film 4.6-7.5g/ m), lightweight (film 1.1-4.5g/ m) and lightweight (film 0.2-1g/ m).