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

Aqueous fusion agent used for flux method hot dip coating low aluminium zinc alloy and its application method

A hot-dip galvanizing and aluminum alloy technology, applied in hot-dip galvanizing process, metal material coating process, coating, etc. Missing plating, improved wettability, and low surface tension effects

Inactive Publication Date: 2003-09-17
UNIV OF SCI & TECH BEIJING
View PDF0 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] A large amount of gas and low-boiling volatile substances are produced, which weakens the effect of the flux, and easily leads to defects such as partial missing plating, bulges and sticky slag of steel products, and it also causes serious environmental pollution.

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 Construction

[0026] After fully degreasing, pickling and water washing, the No. 20 carbon steel sample of 50mm×30mm×20mm is immersed in the water flux listed in Table 1 for 30s~50s, taken out and dried, and then immersed in 425℃~430℃ The molten Zn-5%Al-RE or Zn-3.5%Al-RE alloy plating solution is hot-dipped, and the obtained plated sample surface is bright and smooth, without black spots and missing plating defects.

[0027] Example

[0028] * Each proportioning composition is based on a solid total amount of 300 grams per liter.

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

An aqueous flux for hot dip coating of low-Al Zn alloy by flux method is prepared from zinc chloride (70-80 mass%), ammonium chloride (8-10 mass%) and cerium chloride (4-10 mass%). Said hot dip coating process includes such steps as removing oil and rust from the iron or steel workpiece, immersing it in said aqueous flux for a certain time, baking at 120-160 deg.c, and immersing in molten Zn-Al alloy.

Description

technical field [0001] The invention belongs to the technical field of hot-dip galvanized aluminum for iron and steel products, and in particular provides a water solvent for hot-dip galvanizing of low-aluminum-zinc alloys by a solvent method, which is suitable for hot-dip galvanized aluminum of steel products (≤5% by solvent method (dry method) ) is a water flux used in the flux treatment process in the alloy process. Background technique [0002] The flux method (dry method) hot-dip galvanized aluminum (or rare earth zinc-aluminum) alloy process is to immerse the steel products after degreasing and derusting in a flux (usually an aqueous solution) for an appropriate time, and then take them out and dry them. A layer of solid flux film is formed on the surface, and then immersed in the molten zinc-aluminum alloy plating solution for hot-dip plating. Relevant with the present invention, close technology has: [0003] [1] Blickwede D.J. 55% Al-Zn Alloy Coated Sheet Steel, i...

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): C23C2/02C23C2/06
Inventor 卢燕平
Owner UNIV OF SCI & TECH BEIJING