روش جوشکاری لوله مربعی فولاد ضد زنگ

1. ویژگی های فنی 1.1 مشخصات مواد: 304 (معادل 0Cr18Ni9) 1.2 محیط کار: آب، آب نرم 1.3 فشار طراحی: 1.4 فشار کاری: 5 کیلوگرم/CM2 1.5 فشار آزمایش: 7.5 کیلوگرم/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. بازرسی جوش 4.1 بازرسان جوشکاری باید با مدارک فنی F43C و استانداردهای ملی مربوطه و این فرآیند آشنا باشند. 4.2 بازرسی، پر کردن و پذیرش مواد مصرفی جوش لوله طبق مقررات. 4.3 انجام نظارت و بازرسی همه جانبه در مورد اجرای این فرآیند توسط جوشکار و آموزش و کمک به متخلفان.

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

مقررات فن 5.2.2 لوله یک شیار V شکل است و اتصالات و گروه های لب به لب مطابق با الزامات شکل 1 است: توجه: فاصله 3.54 میلی متری داده های حین جوشکاری است. هنگام جوشکاری جامد-به-نقطه‌ای، برای جبران انقباض باید نسبتاً بزرگتر از این داده باشد.