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Welding rod printing pigment and preparation method thereof

A printing and pigment technology, applied in the field of welding rod printing pigment and its preparation, can solve the problems of light fastness, heat resistance, poor weather resistance, occupational health hazards, etc., and achieve low cost, stable physical and chemical properties, and high temperature resistance. Effect

Active Publication Date: 2016-04-13
POWERCHINA SPEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the past, organic pigments were used in welding rod printing pigments. Compared with ordinary inorganic pigments, organic pigments usually have higher coloring power, the particles are easy to grind and disperse, not easy to precipitate, and the colors are brighter, but their light resistance, heat resistance, and weather resistance are poor. ; and it is necessary to purchase organic synthetic raw materials specially used for making pigments, and the long-term use of welding rods printed with such pigments by welders will also cause certain hazards to occupational health

Method used

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  • Welding rod printing pigment and preparation method thereof
  • Welding rod printing pigment and preparation method thereof
  • Welding rod printing pigment and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Weigh each raw material as follows:

[0026]

[0027] After the above raw materials are weighed, first mix AA-type calcium-based bentonite, iron oxide black, and powdered sodium silicate evenly, add 11kg of 1% sodium hydroxide aqueous solution as a diluent, mix well, and stir evenly. Then put the mixture into a colloid mill to grind to obtain a paste-like black pigment with certain fluidity.

[0028] When the pigment is actually used, it meets the baking temperature of the welding rod and the temperature of the welding core and coating when the welding rod burns to the end. When the temperature set in the test reaches 800°C, after the welding rod is baked for 2 hours, the printed characters are still clearly visible without discoloration. Scratch resistant.

Embodiment 2

[0030] Weigh each raw material as follows:

[0031]

[0032]

[0033] After weighing the above raw materials, dry mix AA-type calcium-based bentonite and iron oxide black evenly, then pour 2kg of pure potassium silicate (3.3M, 38°Be') and 9kg of 1% sodium hydroxide aqueous solution , mix well and stir well. Then put the mixture into a colloid mill to grind to obtain a paste-like black pigment with certain fluidity.

[0034] When the pigment is actually used, it meets the baking temperature of the welding rod and the temperature of the welding core and coating when the welding rod burns to the end. When the temperature set in the test reaches 800°C, after the welding rod is baked for 2 hours, the printed characters are still clearly visible without discoloration. Scratch resistant.

Embodiment 3

[0036] Weigh each raw material as follows:

[0037]

[0038] After weighing the above raw materials, dry mix AA-type calcium-based bentonite and iron oxide black evenly, then pour 2kg of pure potassium silicate (3.3M, 38°Be') and 9kg of 1% sodium hydroxide aqueous solution , mix well and stir well. Then put the mixture into a colloid mill to grind to obtain a paste-like black pigment with certain fluidity.

[0039] When the pigment is actually used, it meets the baking temperature of the welding rod and the temperature of the welding core and coating when the welding rod burns to the end. When the temperature set in the test reaches 800°C, after the welding rod is baked for 2 hours, the printed characters are still clearly visible without discoloration. Scratch resistance; in this case, the existing printing pigments will have blurred fonts and other phenomena.

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Abstract

The invention discloses a welding rod lettering pigment, belonging to the technical field of high-temperature pigment. The welding rod lettering pigment is prepared by evenly stirring and mixing a dispersing agent, a high-temperature-resistant pigment, a curing agent and a dilution material. The pigment is good in high-temperature resistance property and stable in physicochemical property, has no sediment and separation phenomena (or only has slightly separation phenomenon, and is evenly stirred before use) after being stored for a long time, and is lower in the cost of raw materials.

Description

technical field [0001] The invention belongs to the technical field of high-temperature-resistant pigments, and in particular relates to welding rod printing pigments and a preparation method thereof. Background technique [0002] With the increasing awareness of environmental protection, energy saving and efficiency enhancement, it has become a general trend to reduce product costs without reducing product quality, and to make raw materials more convenient. [0003] In the past, organic pigments were used in welding rod printing pigments. Compared with ordinary inorganic pigments, organic pigments usually have higher coloring power, the particles are easy to grind and disperse, not easy to precipitate, and the colors are brighter, but their light resistance, heat resistance, and weather resistance are poor. ; and it is necessary to purchase organic synthetic raw materials specially used for making pigments, and the long-term use of welding rods printed with such pigments by...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D17/00
Inventor 杨光磊公茂涛仇陆弟赵仕超刘亮翁苏华
Owner POWERCHINA SPEM CO LTD
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