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Seamless steel tubes are the products of our co***ny have a look this, method of corrosion rust of seamless steel tube today.
GB8162 the structure with seamless steel tube ", this standard applies to the general structure and mechanical structure; GB8163 the transmission fluid with seamless steel tube", the standard applicable to conveying fluid seamless steel tubes in general. The main difference with the GB8162 is steel pipe GB8163 by root hydraulic test or ultra sonic, eddy current and magnetic flux leakage testing, therefore in the selection of pressure pipe standard, not the standard of GB8162. According to the hardness of the surface of the seamless steel pipe, original corrosion degree, surface rough degree, coating types to choose the abrasive, for single epoxy, two layers or three layers polyethylene coating, using steel grit and steel shot mixed abrasive are more likely to achieve the ideal cleaning effect. The particle size and the ratio of the abrasive particles are uniform and clean. The roughness is too big to cause the corrosion layer at the anchor point of the spike, and because of the depth of the anchor lines, the formation of air bubbles in the corrosion process, which seriously affect the performance of the anti-corrosion layer. Too small roughness can cause corrosion resistance and i***ct strength decreased. For serious internal pitting, not only by large particles abrasive high strength shock, must also rely on small particles to polish off corrosion products to achieve the effect of cleaning, at the same time, the reasonable proportioning design not only can slow down the abrasive wear of the piping and nozzles (blade), and the use of abrasive rate can be greatly improved. Cleaning and preheating prior to the injection processing, the cleaning method to remove grease and fouling in the surface of steel, the heating furnace tube preheating to 40 to 60 DEG C, so that the seamless steel pipe surface to maintain the dry state.
Seamless steel pipe | Galvanized steel pipe | AST |
| Company: |
Heibei New Sinda Pipes Manufacture Co.,Ltd
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| Contact: |
Mr. wang geng |
| Address: |
Mengcun Hui Autonomous County North Industrial Zone |
| Postcode: |
062450 |
| Tel: |
86-0317-6899188 |
| Fax: |
86-317-6899899 |
| E-mail: |
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