How correct do galvanized SMLS

Sources: this site    Click:    Date: 2015-8-7 2:44:53
Seamless steel pipe has been widely used in industrial production, this is mainly thanks to its good performance.It is in order to be able to play the good performance of seamless steel tube, sometimes we need to galvanized seamless steel pipe protection.After all, sometimes, after the production of seamless steel tube may be sold all within a short period of time, the need to experience the corresponding process.Effective protection is essential.
How do we operate?For seamless steel tube galvanization solution generally has two, one is hot dip galvanized and one is electric galvanized.Hot galvanizing including wet method, dry method, lead and zinc method, oxidation-reduction method, etc.Just as its name implies is galvanized by means of electrolysis, refers to the surface of parts to form uniform, dense, combined with good metal process.
For the galvanized zinc layer is very smooth and dense, while has good mechanical properties, but also has excellent corrosion resistance.The primary difference between different methods of galvanized in when using steel tube after acid cleaning, with what method can improve the quality of the galvanized.In the real production, general mainly adopts hot galvanizing, this is mainly due to the electric galvanizing technology is relatively complex.For some special need is to adopt the method of electric galvanized.
Seamless steel tube galvanized method is introduced
 
After finished seamless steel tube production, we will to galvanized seamless steel pipe, galvanized both increases the beautiful of seamless steel tube, and also has certain protective effect, but says it is kill two birds with one stone.For seamless steel tube galvanized mainly for hot galvanizing and two kinds of galvanized.
For now, Ann galvanized according to the classification of the plating solution, can be divided into four types.The first is cyanide zinc plating.But because of cyanide containing highly toxic, has a severe damage to the environment, so as the concept of environmental protection, the use of cyanide in electric galvanized there are a lot of restrictions, now main use micro cyanide plating solution.This is the result of the progress of science and technology.
Relevant details may refer to: seamless steel tube, http://www.tjzhwygg.com/
Second is the zincate galvanized, the technology evolved from the cyanide zinc plating.This technology has a strong corrosion resistance, is often used for color galvanized.And sulfate zinc is more suitable for continuous galvanizing, cost is relatively low.In the whole plating method, chloride zinc plating is one of the most widely used method.This is due to its good characteristics.
 
Seamless steel pipe pickling need to pay attention to?
In seamless steel tube production and manufacturing, will involve the pickling process of steel tube.
For staff, for seamless pipe pickling time need to pay attention to what issues?
First, before pickling must wear labor protection articles.For field work environment also must carry on the detailed inspection, check the condole belt of steel tube is mainly, confirmation of intact operation can be performed.
Second in pickling, pickling mainly use hydrochloric acid pickling, best general hydrochloric acid content of 18% to 18%.
Third staff before the operation need of acid concentration and temperature and the groove pickling pipe tonnage to understand clearly.These can be through the use of measuring equipment for testing.
The fourth for pickling of steel pipe every best control the weight between 2 to 5 tons, time is in 5 to 15 minutes.Time needs to be adjusted according to how much weight.Steel pipe, the vibration of the pickling process also requires constant, under the acid tank pipe, steel pipe to tilt, prevent misidentification of hydrochloric acid to human