3 mm,钢管其他项目应符合GB/T 3092,GB/T 3087,GB/T 8163的规定。4 ：钢带与钢管之间应采用高频焊或其他确保紧固的方法。JG/'r
About production technology 1: Steel finned tube convection radiator shall be manufactured according to approved product drawings and technical documents, and shall comply with the provisions of this standard. 2: steel finned tube convection radiator cover with back plate, joint box inside. The steel strip, cover plate and both ends guard plate shall conform to the relevant material standards and shall have a certificate of material quality. 3: The ovality of steel pipe should not exceed 0.3 mm. Other items of steel pipe should conform to the stipulations of GB/T 3092, GB/T 3087 and GB/T 8163. 4: high frequency welding or other ways to ensure fastening should be adopted between steel strip and steel pipe. JG/'r 3012.2 1 1998
5: The welding surface of steel strip and steel pipe should be free of defects and impurities such as coating, rust and pits which affect the welding quality.
6：翅片管质量要求翅片管螺距6-7 mm，翅片高度应大于15 mm，翅片倾伏角不应大于80, 翅片管的直线度每米不应大于1.0 m m. 对于采用高频焊接工艺的翅片管，每米翅片管测量处实际焊缝长度的总和应大于85 ，且未连续焊接长度不应大于50 mm.
6: Finned tube quality requirements finned tube pitch 6-7 m m, fin height should be greater than 15 m m, fin dip angle should not be greater than 80, finned tube straightness should not be greater than 1.0 M. For finned tube using high-frequency welding process, the total length of the actual weld at the finned tube measurement should be greater than 85, and the length of non-continuous welding should not be greater than 80. More than 50 mm.
7 ：钢制翅片管对流散热器焊接质量要求: 钢管与钢管的对接应符合GB 151的规定。焊接应符合GB/T 985的规定。
7: Steel finned tube convection radiator welding quality requirements: steel pipe and steel pipe butt should comply with the requirements of GB 151. Welding shall comply with the requirements of GB/T 985.
8: Steel finned tube convective radiator shall be tested by water pressure or air pressure one by one before adding cover. The test pressure is 1.5 times of working pressure.
9 ：钢制翅片管对流散热器接管螺纹应符合JG .1 31的规定。
9: steel finned tube convection radiator pipe thread should comply with the requirements of JG.1 31.
10 ：漆膜质量要求钢制翅片管对流散热器应喷涂防锈底漆和面漆;面板应烤漆，漆膜的制备应符合GB/T 1727的规定。表面涂层应均匀光滑，附着牢固，不得有气泡、堆积、流淌和漏喷。
10: Coating film quality requirements of steel finned tube convection radiator should be sprayed with anti-rust primer and topcoat; panel should be baked paint, paint film preparation should comply with GB / T 1727 requirements. The surface coating should be uniform and smooth with firm adherent. No bubbles, stacking, flowing and leaky spray should be allowed.
About buying and buying
How to choose finned tube radiator is a problem that consumers need to think about carefully.
Some pay attention to thermal efficiency, concerned about whether in a short period of time to achieve significant results; some are due to environmental factors, focusing on whether corrosion resistance; and whether the unexpected appearance is beautiful. So many. So what are the most basic and important things to ignore?
Firstly, the working pressure of finned tube radiator should satisfy the working pressure of the system, and conform to the relevant national product standards.
Secondly, finned tube radiators should be used in industrial buildings where dust emission or dust prevention is required.
Thirdly, corrosion-resistant finned tube radiators should be used in industrial buildings with corrosive gases or in high relative humidity environment.
Fourth: the use of steel finned tube radiator, should be closed system, and meet the product requirements for water quality
Fifth: the use of aluminum finned tube radiator, should choose internal corrosion-resistant aluminum finned tube radiator, and meet the product requirements for water quality;
Sixth: Select the regular finned tube radiator manufacturer, with better after-sales guidance installation, technical support, our company specializes in manufacturing all kinds of radiator equipment, heat exchangers, oil coolers, surface air coolers, heating fins, finned tubes, products through Shanghai Tongji University, China Textile University testing, to achieve advanced water Ping, welcome new and old customers to inquire, inquiry, we sincerely cooperate with you!辛苦整理.转载请注明http://www.wxsxsjx.com
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