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Coating for metal stretchable pipe and preparing method of coating

A tube and metal technology, applied in the field of coatings for metal expansion tubes and their preparation, can solve the problems of low hardness, poor heat resistance, slow drying, etc.

Inactive Publication Date: 2017-04-19
WUXI YONGXING METAL HOSE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] This application aims at the technical problems of existing coatings such as slow drying, poor heat resistance, poor water resistance, low strength and low hardness, and provides a coating for metal telescopic tubes and its preparation method

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Weigh 100 parts of nitrocellulose, 80 parts of methyl ethyl ketone, 5 parts of n-butanol, 2 parts of alkyd resin, 10 parts of methyl isobutyl ketone, 15 parts of isopropanol, linear 15 parts of phenolic resin, 20 parts of toluene, 4 parts of butanol, 10 parts of polyvinyl acetate, 12 parts of zinc chromate, 1 part of talcum powder, 13 parts of tannin, 3 parts of bentonite.

[0025] Put methyl ethyl ketone, n-butanol, methyl isobutyl ketone, isopropanol, toluene, butanol and tannin into a reaction kettle equipped with a stirrer and a thermometer, raise the temperature to 40°C, stir for 30min, and the stirring speed is 400 rpm, add nitrocellulose, alkyd resin, novolak resin and polyvinyl acetate, heat up to 70°C, and stir at constant temperature for 40min.

[0026] Raise the temperature to 90°C, add the remaining raw materials, heat-preserve and stir for 100 minutes at a stirring speed of 1000 rpm, grind with a sand mill, cool, filter, and pass the inspection.

[0027] T...

Embodiment 2

[0029] Weigh 100 parts of nitrocellulose, 100 parts of methyl ethyl ketone, 25 parts of n-butanol, 6 parts of alkyd resin, 30 parts of methyl isobutyl ketone, 55 parts of isopropanol, linear 35 parts of phenolic resin, 40 parts of toluene, 8 parts of butanol, 30 parts of polyvinyl acetate, 18 parts of zinc chromate, 20 parts of talcum powder, 17 parts of tannin, and 7 parts of bentonite.

[0030] Put methyl ethyl ketone, n-butanol, methyl isobutyl ketone, isopropanol, toluene, butanol and tannin into a reaction kettle equipped with a stirrer and a thermometer, raise the temperature to 60°C, stir for 50min, and the stirring speed is 800 rpm, add nitrocellulose, alkyd resin, novolak resin and polyvinyl acetate, heat up to 90°C, and stir at constant temperature for 60 minutes.

[0031] Raise the temperature to 110°C, add the remaining raw materials, keep stirring for 120 minutes, and the stirring speed is 1200 rpm, grind with a sand mill, filter after cooling, and pass the inspec...

Embodiment 3

[0034]Weigh 100 parts of nitrocellulose, 85 parts of methyl ethyl ketone, 10 parts of n-butanol, 3 parts of alkyd resin, 15 parts of methyl isobutyl ketone, 25 parts of isopropanol, linear 20 parts of phenolic resin, 25 parts of toluene, 5 parts of butanol, 15 parts of polyvinyl acetate, 13 parts of zinc chromate, 5 parts of talc, 14 parts of tannin, and 4 parts of bentonite.

[0035] Put methyl ethyl ketone, n-butanol, methyl isobutyl ketone, isopropanol, toluene, butanol and tannin into a reaction kettle equipped with a stirrer and a thermometer, raise the temperature to 40°C, stir for 30min, and the stirring speed is 400 rpm, add nitrocellulose, alkyd resin, novolak resin and polyvinyl acetate, heat up to 70°C, and stir at constant temperature for 40min.

[0036] Raise the temperature to 90°C, add the remaining raw materials, heat-preserve and stir for 100 minutes at a stirring speed of 1000 rpm, grind with a sand mill, cool, filter, and pass the inspection.

[0037] The a...

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Abstract

The invention discloses a coating for a metal stretchable pipe and a preparing method of the coating. Raw materials include nitrocellulose, methyl ethyl ketone, n-butyl alcohol, alkyd resin, methyl isobutyl ketone, isopropyl alcohol, linear phenolic resin, toluene, butanol, polyvinyl acetate, zinc chromate, talcum powder, tannic acid and bentonite. A coating film is bright and smooth in appearance, the fineness ranges from 10 microns to 30 microns, surface drying is carried out for 10 min to 30 min, solid drying is carried out for 4 h to 8 h, and the flowing-out time is 50 s to 54 s; the adhesive force is the first stage, the flexibility is 1 mm, the heat resistance is characterized in that no changes occur within 1 h to 5 h at 100 DEG C, and the hardness is 0.5 to 0.7; the water resisting property is characterized in that after being soaked into water at 25 DEG C, the coating film is free of bubbles, free of peeling and free of falling, and the impact strength is 50 cm; and the viscosity can last for 60 s to 70 s, the glossiness is 80% to 90%, the stone-impact-resisting performance is 1-3 stage, and the coating can be widely produced and can continuously replace an existing material.

Description

technical field [0001] The invention relates to the field of materials for metal expansion tubes, in particular to a coating for metal expansion tubes and a preparation method thereof. Background technique [0002] Stainless steel pipe is a hollow long round steel, mainly widely used in petroleum, chemical, medical, food, light industry, mechanical instrumentation and other industrial pipelines and mechanical structural components. In addition, when the bending and torsional strength are the same, the weight is lighter, so it is also widely used in the manufacture of mechanical parts and engineering structures. It is also commonly used to produce various conventional weapons, barrels, shells, etc. [0003] According to the material, stainless steel pipes are divided into ordinary carbon steel pipes, high-quality carbon structural steel pipes, alloy structural pipes, alloy steel pipes, bearing steel pipes, stainless steel pipes, and bimetal composite pipes, coating and coa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D101/18C09D7/12
CPCC09D101/18C08L2201/08C08L2205/035C09D5/18C09D7/61C09D7/63C09D7/65
Inventor 王志兴
Owner WUXI YONGXING METAL HOSE
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