Welding fixture and welding process for magnetic medium box

Abstract

The invention relates to a welding fixture and a welding process for a magnetic medium box. The welding fixture is an integrated fixture with baffles on two sides and an opening at the top. A main formwork and a side formwork are fastened through connecting bolts to form the integrated fixture. The welding process comprises the following steps: 1) preparing the welding fixture, and inserting magnetic medium sticks in two angular holes at external ends of two pored plates of the magnetic medium box, thereby forming a fixed frame; 2) inserting all the magnetic medium sticks in turn; 3) aligning mortises of the side formwork to rabbets of the main formwork, assembling and fastening the side formwork and the main formwork; 4) beating exposed ends of the magnetic medium sticks so that the lower end faces of the magnetic medium sticks fit a base plate tightly; 5) placing into a cooling water tank for argon arc melting welding; 6) welding the bottom; and 7) finishing the welding. A special welding fixture is used for integrally melting and welding exposed parts at two ends of the magnetic medium sticks and the pored plates into a whole by directly utilizing argon arc welding, and the effect of even, smooth and firm welding is achieved. The welding process is performed in the cooling water tank, thereby greatly reducing the welding thermal deformation and improving working condition of welding operators.

Description

technical field [0001] The invention relates to the welding tooling and technology of the magnetic medium box, in particular to a high-gradient magnetic separator suitable for vertical rings, ultra-fine high-gradient magnetic separators, flat-ring high-gradient magnetic separators, and opposite-pole high-gradient magnetic separators The welding fixture and welding process of the magnetic media box of the magnetic separator. Background technique [0002] The magnetic media box is the core component of the high-gradient magnetic separator, and its quality directly affects the beneficiation parameters and results. The existing high-gradient magnetic separator magnetic media box has the following problems in the process of processing: 1. Because the magnetic media box is in the During processing, thousands of medium rods with small diameters must be welded together with thin orifice plates, and the thermal expansion and contraction of welding will cause a large amount of deforma...

AI Technical Summary

Problems solved by technology

[0002] The magnetic media box is the core component of the high-gradient magnetic separator, and its quality directly affects the beneficiation parameters and results. The existing high-gradient magnetic separator magnetic media box has the following problems in the process of processing: 1. Because the magnetic media box is in the During processing, thousands of medium rods with small diameters must be welded together with thin orifice plates, and the thermal expansion and contraction of welding will cause a large amount of deformation of the external dimensions of the medium box, making it impossible to match with the high gradient magnetic separator. installation requirements

2. Argon arc welding (stainless steel welding wire is required) is used for the welding of the magnetic medium rod and the orifice plate of the medium box. The welding seam is uneven, and it is difficult to avoid missing welding and false welding.

3. The distance between the two orifice plates of the finished magnetic media box should not exceed 1mm. Due to welding deformation, the existing process and technology cannot meet this requirement.

4. The parallelism error of the two orifice plates of the finished media box and the perpendicularity error between the orifice plate and the dielectric rod cannot exceed 1 mm, which cannot be guaranteed by the existing technology, which will seriously affect the assembly size requirements and the structural firmness requirements of the magnetic media box

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