Unlock instant, AI-driven research and patent intelligence for your innovation.

Hot rolling H-type steel temporary antirust liquid

A technology of anti-rust liquid and H-shaped steel, which is applied in the direction of anti-corrosion paint, coating, etc., to achieve the effect of cost saving and process reduction

Active Publication Date: 2017-06-20
WUHAN DESYTEK ENVIRONMENTAL PROTECTION NEW MATERIAL CO LTD
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the existing problems of using anti-rust oil as temporary anti-rust treatment for hot-rolled H-shaped steel, the present invention provides a temporary anti-rust solution for hot-rolled H-shaped steel, which overcomes the need for degreasing after anti-rust oil treatment and subsequent coating treatment Disadvantages of handling

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] The copolymer of described unsaturated carboxylic acid and unsaturated carboxylic acid hydroxy ester is prepared as follows:

[0013] Add 100kg of deionized water and 20kg of isopropanol in sequence in the reaction kettle, add any one of the measured unsaturated carboxylic acids and any one of the unsaturated carboxylic acid hydroxy esters, add 300g of ammonium persulfate, and stir to dissolve After raising the temperature to 80°C, keep the temperature in the kettle at 80-85°C for 2 hours, and when it is cooled to 60°C, distill off isopropanol and water under reduced pressure to obtain a copolymer of unsaturated carboxylic acid and unsaturated carboxylic acid hydroxy ester .

[0014] 5kg of acrylic acid and 2-hydroxyethyl acrylate copolymer, the molar ratio of acrylic acid and itaconic acid in the copolymer is 9:1, the molecular weight of the copolymer is 50000, add 100kg of deionized water; add 2kg of γ-(2,3-epoxy Propoxy)propyltrimethoxysilane, heated to 60°C for 2 h...

Embodiment 2

[0016] 8kg of acrylic acid and 2-hydroxyethyl methacrylate copolymer, the molar ratio of acrylic acid and itaconic acid in the copolymer is 9:1, the molecular weight of the copolymer is 50000, add 100kg of deionized water; add 4kg of γ-(2,3- Glycidoxy)propyltrimethoxysilane, heated to 60°C, maintained for 2 hours, cooled to room temperature, prepared copolymer with γ-(2,3-glycidoxy)propyltrimethoxysilane mixture. Add 0.4kg of n-butanol, mix evenly to get hot-rolled H-beam temporary anti-rust liquid. There is no rust on the surface of the hot-rolled H-beam treated with it when it is stored in the open air for 7 months.

Embodiment 3

[0018] 10kg of methacrylic acid and 2-hydroxyethyl acrylate copolymer, the molar ratio of acrylic acid and itaconic acid in the copolymer is 8:1, the molecular weight of the copolymer is 200000, add 100kg deionized water; add 5kgγ-(2,3- Glycidoxy)propyltrimethoxysilane, heated to 60°C, maintained for 2 hours, cooled to room temperature, prepared copolymer with γ-(2,3-glycidoxy)propyltrimethoxysilane mixture. Add 1.0kg of urea, and mix well to obtain a temporary antirust solution for hot-rolled H-beams. There is no rust on the surface of the hot-rolled H-beam treated by it when it is stored in the open air for 8 months.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to hot rolling H-type steel temporary antirust liquid, belonging to the technical field of metal surface treatment. The hot rolling H-type steel temporary antirust liquid is obtained by preparing a copolymer of unsaturated carboxylic acid and unsaturated hydroxycarboxylate into 5 to 20 percent by weight of water solution, then adding 2 to 10 percent by weight of gamma-(2,3-epoxy propoxy)propyl trimethoxy silane into the water solution, heating to 60 DEG C, keeping the temperature for 2 hours, cooling to room temperature, adding 0.2 to 2.0 percent by weight of a flatting agent into the water solution, and stirring evenly. Hot rolling H-type steel treated by the antirust liquid can be stored outdoors for 6 to 9 months without rusting; meanwhile the surface treated by the antirust liquid can be directly coated without cleaning during subsequent coating, procedures are simplified, and the cost is reduced.

Description

technical field [0001] The invention relates to a temporary antirust solution for hot-rolled H-shaped steel, which belongs to the technical field of metal surface treatment. Background technique [0002] Hot-rolled H-shaped steel has excellent mechanical properties and is widely used in engineering and construction fields. If the hot-rolled H-beams from the production line are not treated with anti-rust treatment, they will be corroded during storage and transportation, which will affect the subsequent coating, and may seriously reduce the mechanical properties of the material. Anti-rust oil is generally used for temporary anti-rust treatment of hot-rolled H steel, but the anti-rust oil on the surface will affect the subsequent coating treatment. When painting with anti-rust paint, the anti-rust oil must be removed. Contents of the invention [0003] Aiming at the current problem of using anti-rust oil as temporary anti-rust treatment for hot-rolled H-shaped steel, the pr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/02C09D5/08C09D7/12C08F220/06C08F220/28
CPCC08F220/06C08K5/5435C09D5/08C09D7/63C09D133/02C08F220/281
Inventor 陆飚
Owner WUHAN DESYTEK ENVIRONMENTAL PROTECTION NEW MATERIAL CO LTD