1. Texnik xususiyatlar 1.1 Materiallar spetsifikatsiyasi: 304 (0Cr18Ni9 ga ekvivalent) 1,2 Ishlaydigan muhit: suv, yumshoq suv 1,3 Dizayn bosimi: 1,4 Ish bosimi: 5Kg/CM2 1,5 Sinov bosimi: 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. Payvandlash tekshiruvi 4.1 Payvandlash inspektorlari F43C texnik hujjatlari va tegishli milliy standartlar va bu jarayon bilan tanish bo'lishi kerak. 4.2 Qoidalarga muvofiq quvurlarni payvandlash uchun sarflanadigan materiallarni tekshirish, to'ldirish va qabul qilish. 4.3 Payvandchi ushbu jarayonni amalga oshiradimi yoki yo'qmi, har tomonlama nazorat va tekshiruv o'tkazing, qoidabuzarlarni o'qing va yordam bering.
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
Fan qoidalari. 5.2.2 Quvur V-shaklidagi truba bo'lib, ko't bo'g'inlari va guruhlari 1-rasmdagi talablarga javob beradi: Eslatma: 3,54 mm bo'shliq payvandlash paytidagi ma'lumotlardir. Qattiq payvandlashni-nuqtaga-guruhlanganda, qisqarishni qoplash uchun bu ma'lumotlardan mos ravishda kattaroq bo'lishi kerak.