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四川瑞致中鴻科技有限公司主要從事金屬材料表面高防腐及超高防腐處理。公司聯(lián)合高校開發(fā)出一種新型表層防腐技術(shù)——氣體多元共滲復(fù)合工藝技術(shù)。采用特殊工藝，把多種元素滲入碳鋼表層，如果處理的是螺栓與螺母，不會影響螺栓與螺母的配合。該滲層與金屬基體實現(xiàn)冶金結(jié)合，即使螺栓與螺母多次裝配與拆出，表層不會被破壞，不會影響防腐性能。制備出來的零件防腐蝕性能（中性鹽霧試驗評價10000小時）遠高于不銹鋼316（中性鹽霧試驗評價700小時）零件，且生產(chǎn)過程環(huán)保，無酸洗，無氫脆現(xiàn)象，目前該技術(shù)已處于世界領(lǐng)先水平。產(chǎn)品特別適合于海洋、戶外潮濕等容易引起銹蝕的環(huán)境下的船舶、通信基站、電力鐵塔等設(shè)備上的高防腐零件。

Sichuan Ruizhi Zhonghong Technology Co., Ltd. is mainly engaged in high anti-corrosion and ultra-high anti-corrosion treatment on the surface of metal materials. The company has developed a new type of surface anti-corrosion technology—gas multi-element co-permeation composite technology in combination with colleges and universities. A special process is used to infiltrate a variety of elements into the surface of the carbon steel. If the bolts and nuts are treated, the matching of bolts and nuts will not be affected. The infiltrated layer and the metal matrix realize the metallurgical combination, even if the bolts and nuts are assembled and disassembled many times, the surface layer will not be damaged and the anti-corrosion performance will not be affected. The anti-corrosion performance of the prepared parts (evaluated by neutral salt spray test for 10,000 hours) is much higher than that of stainless steel 316 (evaluated by neutral salt spray test for 700 hours), and the production process is environmentally friendly, without pickling, and no hydrogen embrittlement. The technology is already at the world's leading level. The product is especially suitable for high-corrosion parts on ships, communication base stations, power towers and other equipment in environments that are prone to corrosion, such as oceans and outdoor humidity.