(EN) The invention provides an electroless nickel plating process for a steel sheet, a phosphorus-nickel-plated steel sheet and a vapor chamber. The electroless nickel plating process for the steel sheet comprises the following steps of: providing the steel sheet; pretreating the steel sheet to obtain a pretreated steel sheet; electroplating nickel on the pretreated steel sheet, forming a nickel layeron a nickel-plated steel sheet, and cleaning the nickel layer to obtain the nickel-plated steel sheet; soaking the nickel-plated steel sheet in an electroless nickel plating solution for electroless nickel plating treatment, forming a phosphorus-nickel layer on the nickel layer, and cleaning and drying the phosphorus-nickel layer to obtain a phosphorus-nickel-plated steel sheet. According to the electroless nickel plating process for the steel sheet, the high-phosphorus phosphorus-nickel layer can be formed on the nickel layer of the nickel-plated steel sheet, so that the phosphorus-nickel-plated steel sheet is obtained. When the phosphorus-nickel-plated steel sheet is used as a cover plate of the vapor chamber, the phosphorus-nickel layer reduces the reaction between the phosphorus-nickel-plated steel sheet and water, and compared with a steel sheet covered with a copper layer on the surface, the phosphorus-nickel-plated steel sheet does not accelerate the reaction between steel and the water due to the formation of a primary battery between copper and the steel, so that the service life of the phosphorus-nickel-plated steel sheet can be prolonged by about 3-5 times.
(ZH) 本发明提供了一种钢片化学镀镍工艺、镀磷镍钢片以及均温板。钢片化学镀镍工艺,包括如下步骤:提供钢片;对钢片进行预处理,得到预处理钢片;对预处理钢片进行电镀镍,在镀镍钢片上形成镍层,清洗干净后得到镀镍钢片;将镀镍钢片浸泡在化学镀镍液中进行化学镀镍处理,在镍层上形成磷镍层,清洗干净并干燥后得到镀磷镍钢片。上述钢片化学镀镍工艺可以在镀镍钢片的镍层上形成高磷的磷镍层,从而得到镀磷镍钢片。该镀磷镍钢片在用作均热板的盖板时,磷镍层降低了镀磷镍钢片与水的反应,与表面覆盖铜层的钢片相比,这种镀磷镍钢片不会因为铜和钢材之间形成原电池而加速钢材与水的反应,从而使得这种镀磷镍钢片使用寿命可以延长约3倍-5倍。