Yancheng steel corrosion company - Jiangsu Ding longtime high-altitude works

Prepare for anti-corrosion metal surface, the surface of the welding tumor, shuttle angle convex spot and rust, should be removed polished clean. When using sand blasting method, using sand (quartz sand, grit or iron ore) should have sufficient hardness and after drying. In ensuring quality rust (should see the silver metal surface uniformity) of the premise, but also use other methods. 2. Make the steel corrosion construction site should be clean, dry and well ventilated. When sand-blasting in wet rainy environment, drying should take measures to prevent secondary rust formation. Construction in the container, ventilation should be installed to ensure that no less than 30 times per hour ventilation equipment volume. 3. Equipment and concrete structures before corrosion protection layer construction, should develop strict fire, explosion, electric shock antivirus and other security measures, but also to do the following. 3.1. Pre-production pipeline in place, aside coating gap and hit number stamped. 3.2. The irrigation apparatus body, permeability or hydraulic test, the apparatus body and attachment parts (eg take over the seat, instrumentation tube, sampling tube and internal attached member, etc.) welding and bench work. 4. After the metal surface rust, should meet the following requirements. 4.1 The liner edge and corner of the curved transition should be smooth, arc radius should generally be greater than $ 2. 4.2 of the sewage and dirt rust should be cleaned and thoroughly washed with an organic solvent. 4.3. The surface should show uniform metallic color, and have a certain roughness, no holes, cracks, and the remaining rust, welding tumor, concave spot depths exceeding $ 2, should welding polished. 5. After the rust cleaning equipment, subject to the relevant qualified personnel check, and should preferably 3051 primer coated steel brushing as soon as possible. Eligible metal surface rust during storage, should be kept dry and clean. As a result of the improper re-contamination or corrosion during storage, should be re-treated until qualified. 6. If Seoul good anti-corrosion coating 6.1. Primer coating uniformity requirements, strictly seamless point, bubbles, flowing, folded, or damaged. 6.2. Thermosetting resin paint finish brushing each one should design (or manufacturer) provides heat treatment, it is completely cured. 6.3. Construction of the ambient temperature and the drying time of each layer, according to the different requirements of a variety of coatings and weather conditions may be. 6.4. Putty, 3051 excellent primer coated steel, enamel should refer to the product description supporting the use, are not free to mix. Prohibit the use of expired materials. 6.5. The number and color of the coating should be fixed in accordance with the design requirements. Coating thickness: general primer should be greater than 50μm; finish should be less than 20μm. 6.6. In the painting process, the paint tools, equipment surfaces and coatings may not entrained water. Prevent acid, alkali contact ban fireworks and anti-dust exposure. 7. coating, the coating should be checked before lining: 7.1 whether the material exceeds the use of, for unknown brands specifications should find out before use. For no grades, no manufacturer logo or outdated material prohibited. 7.2 paints, coatings, rubber, solvents and lining materials, should be product certification and instructions for use. Check specification grades, should meet the design requirements.