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Welding rod additive containing yttrium oxide and method for preparing welding rod additive containing yttrium oxide

A technology of yttrium oxide and additives, used in welding equipment, metal processing equipment, welding media, etc.

Active Publication Date: 2014-10-29
ANHUI JINSANLONG RENEWABLE RESOURCES +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, potassium titanate, sodium titanate and potassium sodium titanate are common additives used to prepare welding rods. The so-called welding rod is composed of a welding core and a coating uniformly and centripetally pressed on the welding core. As the processing raw material of welding rod, it can stabilize the welding arc, reduce the arc voltage and reduce the splash of liquefied metal. However, with the continuous improvement of modern industry's requirements for the quality of welding workpieces, it is difficult to prepare welding rods using traditional titanate as additives. To meet the needs of the market, especially in military, high-tech and other industries, the development of welding additives with superior performance has always been one of the important topics for technicians to study

Method used

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  • Welding rod additive containing yttrium oxide and method for preparing welding rod additive containing yttrium oxide

Examples

Experimental program
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Effect test

Embodiment 1

[0015] Embodiment 1: the preparation of welding rod additive

[0016] 1) Weigh high-purity titanium dioxide and electronic-grade potassium carbonate according to a molar ratio of 1:1, then weigh 3% yttrium oxide of the total mass of high-purity titanium dioxide and electronic-grade potassium carbonate, and mix the three to obtain a mixture;

[0017] 2) Put the mixture into a ball mill and mill it for 4 hours to obtain a mixed powder;

[0018] 3) Put the mixed powder in the mullite sagger, push it into the tunnel kiln, set the tunnel kiln to heat up to 1200°C at a heating rate of 250°C / h, keep it warm for 4 hours, and then turn off the heating system of the kiln , naturally cool down for 8 hours, and then take out the mullite sagger;

[0019] 4) After the block synthesized in the mullite sagger is naturally cooled to normal temperature, the block is crushed and ground until it passes through a 200-mesh sieve to obtain the electrode additive.

Embodiment 2

[0020] Embodiment 2: the preparation of welding rod additive

[0021] 1) Weigh high-purity titanium dioxide and sodium carbonate according to a molar ratio of 3:2, then weigh 5% yttrium oxide of the total mass of high-purity titanium dioxide and sodium carbonate, and mix the three to obtain a mixture;

[0022] 2) Put the mixture into a ball mill and mill it for 4 hours to obtain a mixed powder;

[0023] 3) Put the mixed powder in the mullite sagger, push it into the tunnel kiln, set the tunnel kiln to heat up to 1195°C at a heating rate of 260°C / h, keep it warm for 4.5h, and then turn off the heating of the kiln system, cool down naturally for 8 hours, and then take out the mullite sagger;

[0024] 4) After the block synthesized in the mullite sagger is naturally cooled to normal temperature, the block is crushed and ground until it passes through a 100-mesh sieve to obtain the electrode additive.

Embodiment 3

[0025] Embodiment 3: the preparation of welding rod additive

[0026] 1) Take high-purity titanium dioxide, electronic-grade potassium carbonate and electronic-grade sodium carbonate according to the molar ratio of 3:1.5:1.5, then weigh 5% of the total mass of high-purity titanium dioxide, electronic-grade potassium carbonate and electronic-grade sodium carbonate Yttrium oxide, mixing the four raw materials to obtain a mixture;

[0027] 2) Put the mixture into a ball mill and mill it for 4 hours to obtain a mixed powder;

[0028] 3) Put the mixed powder in the mullite sagger, push it into the tunnel kiln, set the tunnel kiln to heat up to 1200°C at a heating rate of 250°C / h, keep it warm for 4 hours, and then turn off the heating system of the kiln , naturally cool down for 8 hours, and then take out the mullite sagger;

[0029] 4) After the block synthesized in the mullite sagger is naturally cooled to normal temperature, the block is crushed and ground until it passes thro...

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Abstract

The invention discloses a welding rod additive containing yttrium oxide and a method for preparing the welding rod additive containing yttrium oxide. The method for preparing the welding rod additive containing yttrium oxide comprises the following steps that (a) high-purity titanium dioxide, carbonate and yttrium oxide are weighed according to a proportion and are mixed, so that a mixture is obtained; (2) the mixture is placed into a ball mill for ball milling for 3 hours to 5 hours, so that a powder mixture is obtained; (3) the powder mixture is contained in a bowl, the bowl containing the powder mixture is pushed into a furnace, the temperature of the furnace is made to rise to 1195 DEG C-1205 DEG C with the temperature rising rate of 240 DEG C / h-260 DEG C / h, the temperature is maintained for 3.5 hours to 4.5 hours, then a temperature rising system of the furnace is stopped, and the bowl is taken out of the furnace after natural cooling is conducted for 7.5 hours to 8.5 hours; (d) after a synthesized lump in the bowl is naturally cooled to be at the normal temperature, the lump is smashed and ground to be particles which at least can pass through a 100-mesh screen, and thus the welding rod additive containing yttrium oxide is obtained. When welding rods manufactured with the welding rod additive serving as processing raw materials are used practically, the arc voltage during welding can be lowered, electric arcs can be stabilized, splashing is reduced, the welding strength of the welding rods can be effectively improved, and electricity loss can be reduced.

Description

technical field [0001] The invention relates to the field of welding materials, in particular to a welding rod additive containing yttrium oxide and a preparation method thereof. Background technique [0002] At present, potassium titanate, sodium titanate and potassium sodium titanate are common additives used to prepare welding rods. The so-called welding rod is composed of a welding core and a coating uniformly and centripetally pressed on the welding core. As the processing raw material of welding rod, it can stabilize the welding arc, reduce the arc voltage and reduce the splash of liquefied metal. However, with the continuous improvement of modern industry's requirements for the quality of welding workpieces, it is difficult to prepare welding rods using traditional titanate as additives. To meet market demand, especially military industry, high-tech and other industries, the development of welding additives with superior performance has always been one of the importan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K35/362B23K35/40
CPCB23K35/3602B23K35/3608B23K35/362
Inventor 李建林白春富唐宗贵孙安红
Owner ANHUI JINSANLONG RENEWABLE RESOURCES
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