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不锈钢锻造法兰的使用注意事项
1、据专业的法兰锻造产品生产人士指出，为防止由于法兰盖加热而产生睛间腐蚀，焊接电流不宜太大，比碳钢焊条较少20%左右，电弧不宜过长，层间快冷，以窄焊道为宜。
1. According to the professional manufacturer of flange forging products, in order to prevent interocular corrosion caused by flange cover heating, the welding current should not be too large, less than 20% of carbon steel electrode, the arc should not be too long, the interlayer cooling should be fast, and the narrow bead should be suitable.
2、焊条使用时应保持干燥，钛钙型应经150℃干燥1小时，低a氢型应经200-250℃干燥1小时(不能多次重复烘干，否则药皮容易开裂剥落)，防止焊条药皮粘油及其它脏物，以免致使焊缝增加含碳量和影响焊件质量。
2. When using the electrode, it should be kept dry. The Ti-Ca type should be dried at 150 C for 1 hour. The low-a hydrogen type should be dried at 200-250 C for 1 hour (not repeatedly dried, otherwise the coating will crack and peel easily), so as to prevent sticking oil and other dirt on the electrode coating, so as to avoid increasing the carbon content of the weld and affecting the quality of the weld.
3、不锈钢锻造法兰管件焊接时，受到重复加热析出碳化物，降低耐腐蚀性和力学性能。推荐阅读：焊法兰使用效果好的原因
3. Carbide precipitates from stainless steel forged flange pipe during welding by repeated heating, which reduces corrosion resistance and mechanical properties. Recommended Reading: Reasons for Good Use of Welded Flanges
4、铬不锈钢法兰管件焊后硬化性美标法兰较大，容易产生裂纹。若采用同类型的铬不锈钢焊条(G202、G207)焊接，必须进行300℃以上的预热和焊后700℃左右的缓冷处理。若焊件不能进行焊后热处理，则应选用不锈钢法兰管件焊条(A107、A207)。
5. Stainless steel flange, in order to improve its corrosion resistance and weldability, appropriate addition of stability elements Ti, Nb, Mo, etc., has better weldability than chromium stainless steel flange. When using the same type of chromium stainless steel flange welding rods (G302, G307), it should be preheated above 200 and tempered around 800 after welding. If the weldments can not be heat treated, stainless steel flanged pipe fittings welding rods (A107, A207) should be selected.
而且不锈钢锻造法兰是一种盘状零件，在管道工程中最为常见，法兰都是成对及与阀门上的配套法兰使用的。 在管道工程中，法兰主要用于管道的连接。在需要连接的管道，各种安装一片法兰盘，低压管道可以使用丝接法兰，4公斤以上压力的使用焊接法兰。
And stainless steel forged flange is a disc-shaped part, which is most common in pipeline engineering. Flanges are used in pairs and matching flanges on valves. In pipeline engineering, flange is mainly used for pipeline connection. In pipelines that need to be connected, all kinds of flanges are installed. Wire-jointed flanges can be used in low-pressure pipelines, and welding flanges can be used under pressure of more than 4 kg.
1. According to the professional manufacturer of flange forging products, in order to prevent interocular corrosion caused by flange cover heating, the welding current should not be too large, less than 20% of carbon steel electrode, the arc should not be too long, the interlayer cooling should be fast, and the narrow bead should be suitable.
2、焊条使用时应保持干燥，钛钙型应经150℃干燥1小时，低a氢型应经200-250℃干燥1小时(不能多次重复烘干，否则药皮容易开裂剥落)，防止焊条药皮粘油及其它脏物，以免致使焊缝增加含碳量和影响焊件质量。
2. When using the electrode, it should be kept dry. The Ti-Ca type should be dried at 150 C for 1 hour. The low-a hydrogen type should be dried at 200-250 C for 1 hour (not repeatedly dried, otherwise the coating will crack and peel easily), so as to prevent sticking oil and other dirt on the electrode coating, so as to avoid increasing the carbon content of the weld and affecting the quality of the weld.
3、不锈钢锻造法兰管件焊接时，受到重复加热析出碳化物，降低耐腐蚀性和力学性能。推荐阅读：焊法兰使用效果好的原因
3. Carbide precipitates from stainless steel forged flange pipe during welding by repeated heating, which reduces corrosion resistance and mechanical properties. Recommended Reading: Reasons for Good Use of Welded Flanges
4、铬不锈钢法兰管件焊后硬化性美标法兰较大，容易产生裂纹。若采用同类型的铬不锈钢焊条(G202、G207)焊接，必须进行300℃以上的预热和焊后700℃左右的缓冷处理。若焊件不能进行焊后热处理，则应选用不锈钢法兰管件焊条(A107、A207)。
4. The hardening flange of chromium stainless steel flanged pipe fittings is larger and easy to crack. If the same type of chromium stainless steel electrodes (G202, G207) are used for welding, it is necessary to preheat above 300 and slow-cooling treatment around 700 after welding. If the weldments can not www.biansongqi.org.cnwww.shidiaopailou.com.cnwww.shilangan.net.cnwww.shidiaoshizi.net.cnwww.s
hidiaopaifang.cnwww.shidiaoniu.cnbe heat treated after welding, stainless steel flanged pipe welding rods (A107, A207) should be selected.
5、不锈钢法兰，为改善耐蚀性能及焊接性而适当增加适量稳定性元素Ti、Nb、Mo等，焊接性较铬不锈钢法兰好一些。采用同类型的铬不锈钢法兰焊条(G302、G307)时，应进行200℃以上的预热和焊后800℃左右的回火处理。若焊件不能进行热处理，则应选用不锈钢法兰管件焊条(A107、A207)。5. Stainless steel flange, in order to improve its corrosion resistance and weldability, appropriate addition of stability elements Ti, Nb, Mo, etc., has better weldability than chromium stainless steel flange. When using the same type of chromium stainless steel flange welding rods (G302, G307), it should be preheated above 200 and tempered around 800 after welding. If the weldments can not be heat treated, stainless steel flanged pipe fittings welding rods (A107, A207) should be selected.
而且不锈钢锻造法兰是一种盘状零件，在管道工程中最为常见，法兰都是成对及与阀门上的配套法兰使用的。 在管道工程中，法兰主要用于管道的连接。在需要连接的管道，各种安装一片法兰盘，低压管道可以使用丝接法兰，4公斤以上压力的使用焊接法兰。
And stainless steel forged flange is a disc-shaped part, which is most common in pipeline engineering. Flanges are used in pairs and matching flanges on valves. In pipeline engineering, flange is mainly used for pipeline connection. In pipelines that need to be connected, all kinds of flanges are installed. Wire-jointed flanges can be used in low-pressure pipelines, and welding flanges can be used under pressure of more than 4 kg.
