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十五年專注五金螺絲制品定制加工
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五金螺絲失效危害及防腐措施

作者: 深圳市鴻盛達精密五金制品有限公司發表時間:2018-03-30 17:19:37瀏覽量:2074

相比其他的螺栓和螺絲來說,不銹鋼螺栓和不銹鋼螺絲無論在低溫、高溫部位,其應用范圍更為廣泛,因此在實際使用中五金螺絲也越來越被普遍使用。以下是五金螺絲失效危害及防腐措施: 一、五金螺絲失效的危害 一般碳鋼、...
相比其他的螺栓和螺絲來說,不銹鋼螺栓和不銹鋼螺絲無論在低溫、高溫部位,其應用范圍更為廣泛,因此在實際使用中五金螺絲也越來越被普遍使用。以下是五金螺絲失效危害及防腐措施:

一、五金螺絲失效的危害
一般碳鋼、合金鋼螺栓是在其表面有明顯腐蝕產物及減薄的情況下失效,而不銹鋼螺絲會在其表面幾乎看不出任何變化的情況下喪失強度,造成結構或設備的嚴重破壞,其失效更具隱蔽性和危害性。
二、五金螺絲的防腐蝕措施
1、選用合格的不銹鋼螺絲,結構設計中避免形成縫隙,避免造成容易產生表面沉積的幾何條件;
2、把不銹鋼螺絲與含Cl-水溶液作有效的隔離,不能避免縫隙的,通過不銹鋼螺絲防腐蝕作用介紹了解,應該用焊接或把縫隙填實,使水溶液不能進入;
3、采用含高鉻、高鉬的不銹鋼材料,特別是在低溫罐區、球罐區、應力腐蝕嚴重區采用耐蝕性好的鋼,效果更佳。
2018-03-30 2074人瀏覽
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