A process flow method for embedded groove anti-corrosion

Abstract

The invention discloses a process flow method for pre-embedded groove corrosion resistance. The process flow method comprises the steps that an anchor rod is welded to the back surface of a groove channel; the pre-embedded groove channel which the anchor rod is well welded to is subjected to blasting treatment to remove surface rust; and the pre-embedded groove is subjected to high temperature treatment to remove surface oil stain. According to the process flow, the order is adjusted based on the traditional technique, and adjustment is mainly embodied in that current 'bending arc and then zinc infiltration' is changed into 'zinc infiltration and then bending arc', that is, at the multi-component alloy co-permeation stage, the pre-embedded groove enters a tool furnace in a straight piece mode. Compared with the situation that an arc-shaped pre-embedded groove in an existing process enters a tool furnace, after the order is adjusted, the number of the pre-embedded grooves capable of being contained by the furnace is increased by 3-4 times, the current market problem of demand over supply is solved, and meanwhile the production cost is also greatly reduced.

Description

technical field [0001] The invention belongs to the technical field of metal product processing, and specifically refers to a process flow method for anti-corrosion of embedded grooves. Background technique [0002] The pre-embedded channel includes the channel body and the anchor rod fixed longitudinally along the channel body. Because it does not require drilling, welding, safety and environmental protection, and the installation position can be adjusted at will during installation and use, it has gradually replaced the traditional manual drilling. It is widely used in large-scale engineering projects such as subways, tunnels, and U-shaped beams. According to the data in September 2016, the rail transit construction plans of more than 40 cities across the country have been approved by the National Development and Reform Commission, with a total planned mileage of more than 8,600 kilometers. The anti-corrosion quality of the embedded groove is related to the service life o...

AI Technical Summary

Problems solved by technology

Due to the need to rotate, the workpiece in the furnace will rotate with the furnace, and the workpiece and the workpiece cannot be relatively fixed, so it is easy to bump and entangle each other

In the slightest, the workpieces collide with each other to cause damage or deformation, and in severe cases, the workpieces are entangled with each other and cause damage, resulting in processing accidents

Due to the special shape of the embedded groove, the channel itself is a long and narrow arc, and there are anchor rods distributed at intervals on the back, and the length of the anchor rod is 80mm. This shape leads to the processing of the embedded groove in the tooling compared with the straight piece More complicated, the number of arc-shaped embedded grooves processed in each furnace is only a few dozen, the output is small, and there is a risk of damage and deformation, resulting in very high material and processing costs

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