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Welding channel molten slag polishing paste for complementary welding pretreatment on welded tube

A weld slag and pretreatment technology, which is applied in the field of welded pipe manufacturing, can solve problems such as easy air pollution, hazards to workers' health, flying dust and slag chips, etc., and achieves the effect of convenient use and improved working environment

Inactive Publication Date: 2016-11-16
安徽鹏远金属制品股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The commonly used slag cleaning method is to use grinding wheels or other abrasive tools for grinding, and the dust and slag chips after grinding are flying, which is easy to pollute the air, reduce the safety of the working environment of workers, and endanger the health of workers.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] (1) Heat 15 parts of hydrogenated rosin and 10 parts of carnauba wax to 85-90 ° C and mix for 15 minutes, then add 8 parts of linear low density polyethylene, 5 parts of glyceryl monostearate and 35 parts of paraffin oil, and continue heating Heat and mix at 130-135°C for 10 minutes to obtain material I;

[0015] (2) Fully mix 8 parts of activated clay, 5 parts of ceramic micropowder and 1 part of nano-titanium dioxide, dry at 100-105°C for 8 hours, then calcinate at 350-400°C for 3 hours, and then add after natural cooling to room temperature 6 parts of hydrogenated castor oil and 10 parts of chlorinated paraffin 42 were mixed thoroughly and left to stand at 0-5°C for 12 hours to obtain material II;

[0016] (3) Add material II, 3 parts of polyethylene glycol 400, 4 parts of carbomer 941, 2 parts of polyacrylamide and 1 part of expanded graphite powder to material I, mix well and add the mixture into a ball mill, and ball mill until fine The degree is less than 50 μm....

Embodiment 2

[0018] (1) Heat 20 parts of hydrogenated rosin and 10 parts of carnauba wax to 85-90 ° C and mix for 15 minutes, then add 8 parts of linear low density polyethylene, 5 parts of glyceryl monostearate and 40 parts of paraffin oil, and continue heating Heat and mix at 130-135°C for 10 minutes to obtain material I;

[0019] (2) Fully mix 10 parts of activated clay, 5 parts of ceramic micropowder and 1 part of nano-titanium dioxide, dry at 100-105°C for 8 hours, then calcinate at 350-400°C for 3 hours, and then add after natural cooling to room temperature 6 parts of hydrogenated castor oil and 10 parts of chlorinated paraffin 42 were mixed thoroughly and left to stand at 0-5°C for 12 hours to obtain material II;

[0020] (3) Add material II, 4 parts of polyethylene glycol 400, 3 parts of carbomer 941, 3 parts of polyacrylamide and 1 part of expanded graphite powder to material I, mix well, add the mixture into a ball mill, and ball mill until fine The degree is less than 50 μm. ...

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PUM

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Abstract

The invention discloses a welding bead slag polishing paste for welded pipe repair welding pretreatment, relates to the technical field of welded pipe manufacturing, and is made of the following raw materials in parts by weight: 15-20 parts of hydrogenated rosin, 10-15 parts of carnauba wax, 8-12 parts of linear low-density polyethylene, 6-10 parts of activated clay, 5-8 parts of glyceryl monostearate, 5-8 parts of hydrogenated castor oil, 4-6 parts of ceramic micropowder, 3-parts of polyethylene glycol 400 5 parts, carbomer 941 3‑5 parts, polyacrylamide 2‑3 parts, nano titanium dioxide 1‑2 parts, expanded graphite powder 1‑2 parts, chlorinated paraffin 42 10‑15 parts, paraffin oil 35‑40 parts share. The invention can effectively absorb and bond the dust and slag scraps polished by abrasive tools, form agglomerates and fall from the welded pipe, preventing dust and slag scraps from entering the air and polluting the air, so as not to affect the slag grinding effect Under the premise of fully improving the working environment of welders.

Description

Technical field: [0001] The invention relates to the technical field of welded pipe manufacturing, in particular to a weld bead slag grinding paste for repair welding pretreatment of welded pipes. Background technique: [0002] Welding is a crucial process in the production of welded pipes. For the welds that do not meet the requirements of the specification, repair welding is required. Before the repair welding, the weld bead welded before first needs to be cleaned, and the slag in the weld bead is polished so as to carry out repair welding. The commonly used slag cleaning method is to use grinding wheels or other abrasive tools for grinding, and the dust and slag chips after grinding will fly, which will easily pollute the air, reduce the safety of the working environment of workers, and endanger the health of workers. Invention content: [0003] The technical problem to be solved by the present invention is to provide a weld bead slag grinding paste that can fully impr...

Claims

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Application Information

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IPC IPC(8): C08L91/06C08L93/04C08L23/08C08L91/00C08L33/26C08K13/06C08K9/00C08K3/34C08K3/00C08K3/22C08K5/103C08K7/24
CPCC08L91/06C08K2201/011C08L2205/025C08L2205/035
Inventor 王诗斌
Owner 安徽鹏远金属制品股份有限公司