سرپل ويلڊڊ پائپ (SSAW) rust removal and anticorrosion process introduction: Rust removal is an important part of the pipeline anticorrosion process. في الحال, there are many rust removal methods, such as manual rust removal, sand blasting and pickling rust removal, وغيره. انهن مان, دستي زنگ هٽائڻ, مشيني زنگ کي ختم ڪرڻ ۽ مصوري مورچا ختم ڪرڻ (مخالف corrosion برش تيل) زنگ ختم ڪرڻ جا نسبتاً عام طريقا آهن.
1. Manual derusting
Remove the scale and casting sand on the surface of pipes, equipment and containers with a scraper and file, and then use a wire brush to remove floating rust on the surface of pipes, سامان ۽ ڪنٽينرز, ان کان پوء انھن کي sandpaper سان پالش, and finally wipe them with cotton silk.
2. Mechanical rust removal
First use a scraper or a file to remove the scale and casting sand on the surface of the pipe; then one person is in front of the descaling machine and the other is behind the descaling machine, and the pipe is repeatedly descaled in the descaling machine until the true color of the metal is exposed; Before oiling, wipe it again with cotton silk to remove floating ash on the surface.
3. مخالف corrosion برش تيل
پائيپ لائينون, equipment and container valves are generally anti-corrosion and oiled according to the design requirements. When there is no design requirement, the following regulations should be followed:
هڪ. Surface-mounted pipelines, equipment and containers must first be painted with one coat of anti-rust paint, and then two coats of top coats should be painted before handover. If there are requirements for heat preservation and anti-condensation, two coats of anti-rust paint should be painted;
ب. Paint two coats of anti-rust paint on concealed pipelines, سامان ۽ ڪنٽينرز. The second coat of anti-rust paint must be painted after the first coat is completely dry, and the consistency of the anti-rust paint must be appropriate;
3. جڏهن دفن ٿيل پائيپ لائين مخالف corrosion پرت طور استعمال ڪيو ويندو آهي, if it is constructed in winter, اهو استعمال ڪرڻ جي صلاح ڏني وئي آهي ربر محلول تيل يا هوائي گيسولين کي ڦهلائڻ لاء 30 الف يا 30 B petroleum asphalt. ٻه قسم:
① دستي برش ڪرڻ: manual brushing should be applied in layers, and each layer should be reciprocated, ڪراس ٿيل, ۽ ڪوٽنگ گم ٿيڻ يا گرڻ کان سواءِ يونيفارم رکڻ گهرجي;
② مشيني اسپرينگ: The sprayed paint flow should be perpendicular to the painted surface during spraying. When the painted surface is flat, the distance between the nozzle and the painted surface should be 250-350mm. If the painted surface is an arc surface, the distance between the nozzle and the painted surface should be about 400mm. , جڏهن اسپري ڪرڻ, nozzle جي تحريڪ يونيفارم هجڻ گهرجي, the speed should be kept at 10-18m/min, and the compressed air pressure used for spraying paint should be 0.2-0.4MPa.