1. Tekniske egenskaber 1.1 Materialespecifikation: 304 (svarende til 0Cr18Ni9) 1.2 Arbejdsmedium: vand, blødt vand 1.3 Designtryk: 1.4 Arbejdstryk: 5Kg/CM2 1.5 Testtryk: 7.5Kg/CM2
2. The preparation of this project is based on 2.1 F43C technical documents. 2.2 National Standard GB50236-98 "Code for Construction and Acceptance of Welding Engineering for Field Equipment and Industrial Pipelines" 2.3 National Standard GB50235-97 "Code for Construction and Acceptance of Industrial Metal Pipelines" 2.4 Welding Procedure Evaluation Report of the Company :HG1
3. Welders 3.1 Welders should have the qualification certificate of welder examination stipulated in "Rules for Welder Examination of Boiler and Pressure Vessel Pressure Pipeline Welders". 3.2 After entering the site, the welder shall first pass the actual welding operation examination according to the provisions of GB50236-98, and can only undertake the welding work of this project after being approved and issued by the general contractor.
4. Svejseinspektion 4.1 Svejseinspektører bør være fortrolige med F43C tekniske dokumenter og relevante nationale standarder og denne proces. 4.2 Eftersyn, påfyldning og modtagelse af rørsvejsematerialer i henhold til forskrifter. 4.3 Udfør omfattende tilsyn og inspektion af, om svejseren implementerer denne proces, og uddanne og hjælpe overtræderne.
1. Help to be corrected. For serious violators or those who do not change their education, they have the right to stop the welding work. to ensure welding quality. 4.4 Do a good job in Article 7 "post-welding inspection and management" of this process. 4.5 Invite and welcome inspectors from the general contractor and the supervisor to inspect the welding quality.
5. Preparations before welding 5.1.1 Pipes and welding materials must have qualified certificates that meet the regulations, and be checked with the physical objects. 5.1.2 The type of pipe material is grade 304, which is equivalent to my country's 0Cr18Ni9 specification standard. As specified in the project drawings. 5.1.3 Model and specification of stainless steel welding wire: H{{20}}Cr20Ni10Ti φ2.5mm φ2.0mm 5.1.4 Model and specification of stainless steel electrode: A132 φ3.2mm φ2.5mm 5.1.5 Model and specification of cerium tungsten electrode: WCe-20 φ2.0mm 5.1.6 The argon gas was 99.99 percent pure. 5.2 Preparation of Weldments 5.2.1 The distribution of welding ports must comply with the national standards GB50235-97 and GB50236-98
Ventilatorbestemmelser. 5.2.2 Røret er en V-formet rille, og stødsamlingerne og grupperne svarer til kravene i figur 1: Bemærk: Mellemrummet på 3,54 mm er dataene under svejsning. Ved gruppe-til-fast svejsning skal den være passende større end disse data for at kompensere for krympning.