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Process for taking down rusted broken stud screw with screw glue

A technology of screw and rust, applied in the field of rust and broken head screws, can solve the problems of taking out the screws that are not easy to break, the nut and the surfacing body are broken again, and the screw is broken.

Inactive Publication Date: 2016-04-20
安徽经天金属表面处理科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Screw glue is also called screw fixative or anaerobic glue. When installing screws on processing machinery, in order to increase the firmness of the connection between the screw and the machine, people will apply screw glue on the screws. However, during the operation of the processing machinery In the process, the phenomenon of screw breakage is easy to occur, that is, the screw rod of the screw is broken into two halves, which causes the remaining general screw rod to stay inside the machine, so it is necessary to take out the screw rod of the half screw that stays inside the machine. At present, processing The main method used by the personnel is to open a hole in the center of the screw rod of the screw, and then use welding rods to carry out surfacing welding into the hole until the surfacing body exposed to the mechanical plane, and then weld a nut on the surfacing body. People take out the broken head screw by rotating the nut, but because the screw is coated with screw glue, the broken head screw is relatively firm, so this method is prone to the defect that the nut and the surfacing body will break again, so it is still not easy to remove the broken head. The screw is removed from the machine

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Step 1: Use the lead punch to set the large positioning hole of the screw rod of the broken head screw. The diameter of the positioning hole is 1 / 2 of the diameter of the screw rod of the broken head screw;

[0021] Step 2: use the drill bit to drill the screw rod of the dead end screw from the positioning hole, the depth of the hole is 1.8 times of the screw diameter of the dead end screw, and the diameter of the hole is 1 / 2 of the screw diameter of the dead end screw;

[0022] Step 3: Use the welding rod to perform multiple surfacing welding from the inside of the hole to the outside of the hole until the surfacing body exposed by the surfacing welding is 6mm above the mechanical surface. The time of each surfacing welding is 3 seconds. After each surfacing welding, use metal The rod breaks up the welding slag, and then blows away the welding slag with a blower;

[0023] Step 4: Weld the nut on the surfacing body;

[0024] Step 5: Spray water on the screw rod of the ...

Embodiment 2

[0027] Step 1: Use the lead punch to set the large positioning hole of the screw rod of the broken head screw. The diameter of the positioning hole is 1 / 2 of the diameter of the screw rod of the broken head screw;

[0028] Step 2: use the drill bit to drill the screw rod of the dead end screw from the positioning hole, the depth of the hole is 2 times of the screw diameter of the dead end screw, and the diameter of the hole is 1 / 2 of the screw diameter of the dead end screw;

[0029] Step 3: Use the welding rod to perform multiple surfacing welding from the inside of the hole to the outside of the hole until the surfacing body exposed by 8mm of the mechanical surface. The time of each surfacing welding is 2 seconds. After each surfacing welding, use metal The rod breaks up the welding slag, and then blows away the welding slag with a blower;

[0030] Step 4: Weld the nut on the surfacing body;

[0031] Step 5: Spray water on the screw rod of the broken screw, the temperature ...

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PUM

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Abstract

The invention discloses a process for taking down a rusted broken-stud screw with screw glue. The process comprises the following specific steps: punching a positioning hole for a screw rod of the broken-stud screw by using a leading punch; drilling the screw rod of the broken-stud screw from the position of the positioning hole by using a drill bit; carrying out repeated surfacing welding from inside of the hole to outside of the hole by using a welding rod until a surfacing-welded body formed by surfacing welding is exposed out of a mechanical face by over 5mm; welding a nut on the surfacing-welded body; spraying water to the screw rod of the broken-stud screw; rotating the nut by using a spanner so as to take down the broken-stud screw. The process has the advantages of effectively taking out the broken-stud screw and the like.

Description

technical field [0001] The invention relates to a process for removing rusty deadhead screws, in particular to a process for removing rusty deadhead screws with screw glue. Background technique [0002] Screw glue is also called screw fixative or anaerobic glue. When installing screws on processing machinery, in order to increase the firmness of the connection between the screw and the machine, people will apply screw glue on the screws. However, during the operation of the processing machinery In the process, the phenomenon of screw breakage is easy to occur, that is, the screw rod of the screw is broken into two halves, which causes the remaining general screw rod to stay inside the machine, so it is necessary to take out the screw rod of the half screw that stays inside the machine. At present, processing The main method used by the personnel is to open a hole in the center of the screw rod of the screw, and then use welding rods to carry out surfacing welding into the ho...

Claims

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Application Information

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IPC IPC(8): B25B27/18
CPCB25B27/18
Inventor 刘国胜
Owner 安徽经天金属表面处理科技有限公司
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