1. The manufacturer of Jinan Color Steel Plate Factory suggests to check the appearance quality and quality certification materials of steel, welding materials, bolts, bolts and other materials used in the project.
2. The construction department shall urge the construction department to sample and inspect the profile steel base metal, representative welding test pieces, bolts, etc. according to the "Regulations on Sampling and Inspection of the Implementation Certificate of Residential Construction Engineering and Municipal Infrastructure Engineering" and the specification requirements of the Ministry of Construction, and the inspection department shall issue the certificate sampling hunger test report.
3. Supervise and urge the construction unit to reasonably organize the material supply, meet the requirements of continuous construction, strengthen the material management system such as on-site material transportation, storage and inspection, and take protective measures such as moisture-proof, dew-proof and antifouling.
4. Welding ball: The supervisor requires the contractor to provide the quality certificate of raw materials used for welding ball, Chinese marks and inspection report, NDT report of welding ball, etc. Check the diameter, roundness, wall thickness thinning and other dimensions of the welding ball with caliper and metal thickness gauge.
5. Bolt ball: The supervisor requires the contractor to provide the quality certificate of raw materials used for welding ball, Chinese marks and tests. Check the surface quality of the bolt ball with a 10x magnifying glass. Check the size, diameter, roundness of the bolt ball thread and the center angle of the two adjacent bolt holes.
6. Metal pressing plate: metal pressing plate, metal flashing plate, corner plate and their components as well as their raw materials, their varieties, specifications, performance, etc. shall meet the current product standards and design requirements. The Supervisor shall require the Contractor to provide product quality certificate, Chinese mark and inspection report. Check the size deviation, surface and coating quality of the die metal plate (10 times magnifying glass can be used).
7. Coating materials: The supervisor requires the contractor to provide the material product quality certificate, Chinese mark and inspection report. The variety and technical performance of the materials and fireproof coatings used for steel structure anti-corrosion coating shall meet the design requirements. The fireproof coating shall be inspected by a qualified inspection agency to conform to the provisions of the current standards and confirmed by the local fire control department.
8.钢结构工程原材料和成品控制是 工程质量证书的关键，也是控制要点之一。所有原材料和成品的质量规格和性能应符合 产品标准和设计要求，产品定位质量证书和检验报告应作为主要控制项目。
8. The control of raw materials and finished products of steel structure engineering is the key of engineering quality certificate, and also one of the key points of control. The quality specifications and performance of all raw materials and finished products shall meet the product standards and design requirements, and the product positioning quality certificate and inspection report shall be the main control items.
9. The welding materials used in the project must have complete quality certificates, and must be baked according to the requirements of the instructions before use. The supervisor shall check the validity of the quality certificate and the baking records of welding materials. Inspect the welder's qualification certificate, including whether the qualified items cover the actual welding content, and whether the qualification certificate is within the validity period. Inspect whether the items in the welding process evaluation report cover the project and inspect the joints. Ultrasonic testing shall be carried out for primary and secondary welding.
10. The supervisor shall inspect the weld reinforcement, undercut, surface weld tumor, size of shrinkage fillet weld, and undercut surface quality by more than 20%, and make inspection records.
11. The welding procedure assessment is effective, the welding material quality certificate is complete, the welding surface quality meets the specification requirements, the welding related dimensions meet the drawing requirements, the welding is qualified without damage inspection, the effective inspection report, the bolt welding bending test is qualified, the inspection report is available, the supervisor inspection is qualified, and the steel structure welding project is qualified. What do you don't know? Welcome here http://www.jnhscg.com Consult!