冷拔無縫鋼管進行酸洗除銹方法

冷拔無縫鋼管在生產中也是不斷地進行發揮出來巨大的作用的，但是冷拔鋼管在進行維護和保養的過程中並不是一番風順的，由於這樣或者是那樣的原因導致冷拔鋼管生銹的現象是比較多的，對於冷拔鋼管生銹的後果是不能進行使用瞭，喪失瞭冷拔鋼管原來的特性。這個時候就要進行酸洗瞭，那麼冷拔鋼管是怎樣進行酸洗除銹的呢?
Cold-drawn seamless steel pipe is also playing a great role in production, but the process of maintenance and maintenance of cold-drawn steel pipe is not smooth, because of this or that reason, the phenomenon of cold-drawn steel pipe rusting is more, for the consequence of cold-drawn steel pipe rusting can not be used, lost the original characteristics of cold-drawn steel pipe. 。 At this time, pickling will be carried out, so how do cold-drawn steel pipes do pickling and rust removal?
冷拔鋼管及氧化物在鹽酸和硫酸中的溶解度不同。20℃時，每100g試件在10%的鹽酸溶液中可溶解7.5g三氧化二鐵，而在10%的硫酸溶液中隻能溶解0.98g三氧化二鐵。在相同溫度、濃度下，鹽酸對鐵件的溶解度大於硫酸7倍以上。所以在鋼鐵表面除銹多用鹽酸。鹽酸除銹速度快、效率高、不產生氫脆、表面狀態好，在配制洗液時又比硫酸安全、經濟。
The solubility of cold-drawn steel pipe and oxide in hydrochloric acid and sulfuric acid is different. Ferric trioxide can be dissolved 7.5 g in 10% hydrochloric acid solution and 0.98 g in 10% sulfuric acid solution at 20 C. At the same temperature and concentration, the solubility of hydrochloric acid to iron parts is more than 7 times higher than that of sulfuric acid. Therefore, hydrochloric acid is often used to remove rust on steel surface. Hydrochloric acid has the advantages of fast rust removal, high efficiency, no hydrogen embrittlement and good surface condition. It is safer and more economical than sulfuric acid in the preparation of lotion.
用酸洗的辦法危害工人身體健康，排放廢液會造成工業污染，需要"三廢"治理，酸洗後還很容易產生氧化皮銹層，如果鋼鐵設備長期暴露在空氣中，會很快被腐蝕，人們正在尋求能替代此種方法的新工藝。在冷加工行業如：接管、拉絲、擠壓、深拉延等工序，要求磷化膜提供減摩潤滑性能，一般采用鋅系磷化，一是鋅系磷化膜皂化後形成潤滑性很好的硬脂酸鋅層，二是鋅系磷化操作溫度比較低，可在40、60或90℃條件下進行磷化處理，磷化時間4～10min，有時甚至幾十秒鐘即可，磷化膜重量要求≥3g/m2便可。
The method of pickling endangers the health of workers. Discharging waste liquor will cause industrial pollution. It needs to be treated by "three wastes". It is easy to produce oxide rust layer after pickling. If steel equipment is exposed to air for a long time, it will be corroded quickly. People are looking for a new technology to replace this method. In cold processing industry, such as takeover, wire drawing, extrusion and deep drawing, phosphating film is required to provide anti-friction and lubrication performance. Zinc phosphating film is generally used. First, zinc stearate layer with good lubricity is formed after saponification of zinc phosphating film. Second, zinc phosphating透水地坪 operation temperature is relatively low. Phosphating treatment can be carried out at 40, 60 or 90 degrees C. Phosphating time is 4-10 minutes, sometimes even tens of minutes. The weight of phosphating film should be more than 3g/m2 in seconds.
冷拔鋼管的酸洗要彩色沥清地坪依據化學原理進行，但是酸洗比較費時間和經歷，大傢可以根據自己的實際情況進行適當的去選擇，另外當冷拔冷拔鋼管出現生銹的時候不要急於用肥皂水和洗衣液進行沖洗，以免出現各種各樣的不利的影響!
Pickling of cold-drawn steel pipes should be carried out according to chemical principles, but pickling takes time and experience. Everyone can choose it appropriately according to their actual situation. In addition, when the cold-drawn steel pipes are rusty, don't rush to wash them with soap water and laundry detergent, so as to avoid all kinds of adverse effects.