Flange material flange welding process

2022-07-22
  • Detail

Flange, also known as flange flange plate or flange. Flange is a part connecting pipes, which is used for the connection between pipe ends; The flange on the inlet and outlet of the equipment is also used for the connection between two equipment, such as the reducer flange. Flange connection or flange joint refers to the detachable connection in which flanges, gaskets and bolts are connected as a group of combined sealing structures. Today, Xiaobian will tell you about flange related knowledge and see what flange materials are

flange, also known as flange flange plate or flange. Flange is a part connecting pipes, which is used for the connection between pipe ends; The flange on the inlet and outlet of the equipment is also used for the connection between two equipment, such as the reducer flange. Flange connection or flange joint refers to the detachable connection in which flanges, gaskets and bolts are connected as a group of combined sealing structures. Today, Xiaobian will tell you about flange related knowledge and see what flange materials are

flange material

wcb (carbon steel), LCB (low temperature carbon steel), LC3 (3.5% nickel steel), wc5 (1.25% chromium 0.5% molybdenum steel), wc9 (2.25% chromium), C5 (5% chromium 0.5% molybdenum), C12 (9% chromium 1% molybdenum), ca6nm (4 (12% chromium steel), CA15 (4) (12% chromium), CF8M (316 stainless steel), cf8c (347 stainless steel), CF8 (304 stainless steel), CF3 (304L stainless steel), cf3m (316L stainless steel), cn7m (alloy steel), m35-1(Monel) N7m (Hastelloy b), cw6m (Hastelloy C), cy40 (Inconel), etc

flange welding process

required equipment

a set of manual electric welding equipment, a handle angle grinder, an electric air hammer, and a plane ruler

preparation before welding

1. Check and debug the equipment to ensure its normal operation

2. Prepare φ 4.0j402 welding rod is best dried at 300 ℃ -350 ℃ for one hour

welding process

1. Assemble the cone and large flange together according to the requirements of the drawing, and then divide the large flange into 8 equal parts on average

2. Because the flange is thick and the groove is large, segmented symmetrical and multi-layer welding is adopted

weld quality

the weld strength is required to at least reach the base metal strength. The weld surface shall be flat and smooth without burning through, pores, welding leakage, slag inclusion, undercut, incomplete welding and other defects. The reinforcement is less than 2mm

precautions

1. J506 electrode must be used for manual surfacing and low current welding when priming. Strictly follow the welding process

2. After each position is welded, use a level ruler to clamp the deformation of the flange plane

3. Use an air hammer to hammer the weld while welding to eliminate stress

the above is the introduction of flange materials. I hope it will be helpful to you. For more questions about flanges, please continue to pay attention to information

北京男科医院

西安心理医院

三亚男科医院

Copyright © 2011 JIN SHI