Welding forming method of the outer ring inlet and outlet water channel of the heat exchange honeycomb structure

A honeycomb structure, welding forming technology, applied in welding equipment, welding/welding/cutting items, manufacturing tools, etc., can solve the problems of long cycle, high risk of steel castings, inappropriate, etc., to increase the brazing area, Avoid the deformation of the workpiece and avoid the effect of twisting and deformation

CN112338446BActive Publication Date: 2021-09-28XIAN YUANHANG VACUUM BRAZING TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2021-09-28

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Abstract

The invention belongs to the technical field of precision machining, and discloses a welding and forming method for the inlet and outlet water channels of the outer ring of the heat exchange honeycomb structure. The butt joint and limit sinking are used for brazing to position the insert and increase the brazing area, thereby improving the welding strength; then the insert, upper cover and lower cover are processed separately. According to the corresponding assembly steps, brazing is used to weld the insert and the fan-shaped groove butt joint to reduce the deformation of large-depth welding; the upper cover, the lower cover and the insert are convexly welded by argon arc welding. The platform is welded to the limit sunken platform of the fan-shaped groove. At the same time, partial welding with argon arc welding can ensure the welding strength between the fan-shaped groove and the upper and lower cover plates. Not only can the workpiece meet the welding strength requirements, but also the thermal deformation of the workpiece is small due to the slow heating of the whole during the welding process, effectively avoiding the distortion and deformation of the workpiece.
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Description

technical field

[0001] The invention belongs to the technical field of precision machining, and relates to a method for welding and forming an outer ring inlet and outlet water channel of a heat exchange honeycomb structure. Background technique

[0002] The outer ring of the heat exchange honeycomb structure is made of 06Cr19Ni10 forging material. This part is the flange device of the heat exchange honeycomb structure. And the inner surface of the water chamber is smooth, no excess is allowed, such as figure 1 shown.

[0003] However, there are more or less problems in the current traditional process and forming methods, as follows: a) Machining and forming: five-axis machining center equipment can realize inclined hole processing, and large-scale five-axis EDM equipment can realize square water channel processing , but the fan-shaped groove cannot be realized by machining methods. b) Casting molding: precision cast steel castings can form fan-shaped grooves and square w...

Examples

Embodiment Construction

[0044] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0045] In describing the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", The orientations or positional relationships indicated by "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying References to devices or elements must have a particular orientation, be constructed, and operate in a particular orientation and therefore should not be construed as limiting the invention.

[0046] The terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated ...