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Manual thermit welding electrode and preparation and using methods thereof

A welding rod and hot agent technology, applied in the direction of thermite welding equipment, welding equipment, welding equipment, etc., can solve the problems of cumbersome process and insufficient convenience, and achieve the effect of simple cutting operation and reliable welding quality

Active Publication Date: 2009-06-03
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] It can be seen that the existing thermite welding process is relatively cumbersome, and it is still not convenient enough for emergency repairs due to the need for auxiliary equipment

Method used

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  • Manual thermit welding electrode and preparation and using methods thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A manual hot flux welding rod, the welding flux of the electrode is composed of a thermite, a slag-forming agent and an alloying agent. 2 O powder: 10%, NiO powder: 8%, Al powder: 13%, the composition of the slag-forming agent and the percentage of the quality of each component in the total mass of the flux is: B 2 O 3 Powder: 13%, SiO 2 Powder: 9%, CaO powder: 2%, the composition of the alloying agent and the percentage of the mass of each component in the total mass of the flux are: Fe powder: 1%, Mn powder: 1%, the particle size of the raw materials used are all less than 100μm.

[0026] A preparation method of manual hot flux welding rod, the method steps are:

[0027] (1) Weigh the raw materials in proportion, put them into the ball mill tank, and add ZrO according to the ratio of balls to material 1:1 2 Grinding ball, the ball milling medium is acetone, after wet grinding for 24 hours, and drying to obtain flux 2;

[0028] (2) Fill the solder 2 into a paper cy...

Embodiment 2

[0032] A manual hot flux welding rod, the welding flux of the electrode is composed of a thermite, a slag-forming agent and an alloying agent. 2 O powder: 4%, NiO powder: 10%, Al powder: 12%, the composition of the slag-forming agent and the percentage of the quality of each component in the total mass of the flux is: B 2 O 3 Powder: 11%, SiO 2 Powder: 10%, CaO powder: 3%, the composition of the alloying agent and the percentage of the mass of each component in the total mass of the flux are: Fe powder: 1%, Mn powder: 1%, and the particle size of the raw materials used is less than 100μm.

[0033] A preparation method of manual hot flux welding rod, the method steps are:

[0034] (1) Weigh the raw materials in proportion, put them into the ball mill tank, and add ZrO according to the ratio of balls to material 1:1 2 Grinding ball, the ball-milling medium is ethanol, after wet grinding for 12 hours, and drying to obtain flux 2;

[0035] (2) Fill the solder 2 into a paper cy...

Embodiment 3

[0039] A manual hot flux welding rod, the welding flux of the electrode is composed of a thermite, a slag-forming agent and an alloying agent. 2 O powder: 4%, Fe 2 O 3 Powder: 12%, Al powder: 15%, the composition of the slag-forming agent and the percentage of the quality of each component in the total mass of the flux is: B 2 O 3 Powder: 15%, SiO 2 Powder: 6%, CaO powder: 2%, the composition of the alloying agent and the percentage of the mass of each component in the total mass of the flux are: Fe powder: 1%, Mn powder: 1%, the particle size of the raw materials used are all less than 100μm.

[0040] A preparation method of manual hot flux welding rod, the method steps are:

[0041] (1) Weigh the raw materials in proportion, put them into the ball mill tank, and add ZrO according to the ratio of balls to material 1:1 2 Grinding ball, the ball-milling medium is acetone, after wet grinding for 18 hours, and drying to obtain flux 2;

[0042] (2) Fill the solder 2 into the...

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Abstract

The invention discloses a manual thermit welding electrode and preparation and using method thereof which belong to the technical field of welding. A welding compound of the welding electrode comprises a thermit, a slag forming constituent and an alloying agent. Raw materials are weighed according to the proportion and arranged in a ball mill, a grinding ball and a milling medium are added, and the welding compound is obtained by drying after wet grinding; the welding compound is filled in a cylinder which is made of paper, a lead wire is arranged at one end of the cylinder, and the other end is sealed by a plastic plug, thereby forming the thermit welding electrode; the welding electrode is arranged in a sleeve which is made of paper and sealed for preservation. When in use, the sleeve is fixed on the plug at the back end of the welding electrode, the sleeve is held by a hand, and the lead wire at the front end of the welding electrode is ignited, and then the manual welding or cutting operation can be carried out. The welding electrode is small, lightweight and portable, the welding and the cutting operations are simple, rapid and safe, the welding and the cutting operations can be carried out anytime and anywhere, and the welding electrode can be applied in the welding and the cutting of steels, stainless steels or copper alloy materials.

Description

technical field [0001] The invention belongs to the technical field of welding, and in particular relates to a manual hot flux welding rod and a preparation and use method thereof. Background technique [0002] Welding and cutting are two very important engineering operations, which often require special electrical equipment. However, in some special cases, such as field operations, underground operations, and in some extreme cases, such as earthquakes, freezing rain and snow disasters and other natural disasters, traditional welding and cutting operations are often affected by the need to carry bulky equipment. The efficiency of rescue operations, and in most cases, the above two types of rescue operations cannot be realized at all because of the paralysis of power facilities or roads. [0003] Thermite welding is a method that can achieve welding without providing an external heat source. However, all current thermite welding requires the aid of auxiliary equipment, such...

Claims

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Application Information

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IPC IPC(8): B23K35/22B23K35/40B23K23/00
Inventor 陈克新袁轩一詹承斌
Owner TSINGHUA UNIV
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