廠傢對冷拔無縫鋼管怎麼防止生銹？

冷拔鋼管在一定的條件下也會生銹的。但其抗腐蝕能力的大小是隨其鋼質本身化學組成、加互狀態、使用條件及环境介質類型而改變的。冷拔無縫鋼管是靠其表面形成的一層極薄而堅固細密的穩定的富鉻氧化膜（防護膜），防止氧原子的繼續滲入、繼續氧化，而獲得抗銹蝕的能力。一旦有某種原因，這種薄膜遭到瞭不斷地破壞，空氣或液體中氧原子就會不斷滲入或金屬中鐵原子不斷地析離出來，形成疏松的氧化鐵，金屬表面也就受到不斷地銹蝕。這種表面膜受到破壞的形式很多，日常生活中多見的有如下幾種：
Cold-drawn steel pipe will also rust under certain conditions. However, the corrosion resistance of the steel varies with its chemical composition, additive state, service conditions and the type of environmental medium. Cold-drawn seamless steel pipe is formed by a thin, solid, compact and stable chromium-rich oxide film (protective film) on its surface, which prevents oxygen atoms from penetrating into and oxidizing continuously, and obtains the ability to resist corrosion. Once for some reason, the film is constantly destroyed, oxygen atoms in air or liquid will continuously infiltrate or iron atoms in metal will continuously separate out, forming loose iron oxide, and metal surface will be constantly corroded. There are many forms of destruction of the surface film.
1、冷拔無縫鋼管表面存積著含有其他金屬元素的粉塵或異類金屬顆粒的附著物，在潮濕的空氣中，附著物與不銹鋼間的冷凝水，將二者連成一個微電池，引發瞭電化學反應，保護膜受到破壞，稱之謂電化學腐蝕。
1. The surface of cold-drawn seamless steel pipe is deposited with dust containing other metal elements or adhesives of different metal particles. In moist air, the adhesives and condensate water between stainless steel and stainless steel connect them into a micro-battery, which leads to electrochemical reaction, and the protective film is destroyed. It is called electrochemical corrosion.
2、冷拔無縫鋼管表面粘附有機物汁液（如瓜菜、面湯、痰等），在有水氧情況下，構成有機酸，長時間則有機酸對金屬表面的腐蝕。
2. The surface of cold-drawn seamless steel pipe is adhered with organic juice (such as melon, vegetable, noodle soup, phlegm, etc.). Under the condition of water and oxygen, organic acid is formed, and for a long time, organic acid corrodes the meta透水地坪l surface.
3、冷拔無縫鋼管表面粘附含有酸、堿、鹽類物質（如裝修墻壁的堿水、石灰水噴濺），引起局部腐蝕。
3. The adherence of cold-drawn seamless steel pipe surface to acid, alkali and salt substances (such as alkali water and lime water splashing on decoration walls) causes local corrosion.
4、在有污染的空氣中（如含有大量硫化物、氧化碳、氧化氮的大氣），彩色沥清地坪遇冷凝水，形成硫酸、硝酸、醋酸液點，引起化學腐蝕。
4. In polluted air (such as atmosphere containing large amounts of sulfide, carbon dioxide and nitric oxide), sulfuric acid, nitric acid and acetic acid are formed in the presence of condensate, which leads to chemical corrosion.
以上情況均可造成冷拔無縫鋼管表面防護膜的破壞引發銹蝕。所以，為確保金屬表面永久光亮，不被銹蝕，我們建議：
All of the above can cause the surface protective film damage of cold-drawn seamless steel tube and lead to corrosion. Therefore, in order to ensure that the metal surface is permanently bright and not corroded, we recommend:
1、必須經常對裝飾冷拔無縫鋼管表面進行清潔擦洗，去除附著物，消除引發修飾的外界因素。
1. The surface of decorative cold-drawn seamless steel tubes must be cleaned and scrubbed regularly to remove the attachments and eliminate the external factors causing the modification.
2、海濱地區要使用316材質冷拔無縫鋼管，316材質能抵抗海水腐蝕。
2. Seamless cold-drawn 316 steel pipes should be used in coastal areas. 316 steel pipes can resist seawater corrosion.
3、市場上有些冷拔無縫鋼管化學成分不能符合相應國傢標準，達不到304材質要求。因此也會引起生銹，這就需要用戶認真選擇有信譽廠傢的產品。
3. The chemical composition of some cold-drawn seamless steel tubes in the market can not meet the corresponding national standards, and can not meet the material requirements of 304. Therefore, it will also cause rust, which requires users to carefully choose products from reputable manufacturers.