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

Fluxing agent for soldering metal components

A technology of metal parts and brazing methods, applied in the direction of manufacturing tools, metal processing equipment, welding media, etc., can solve the problems of cost increase, achieve the effect of improving performance and efficiency, and improving corrosion resistance

Inactive Publication Date: 2009-02-04
BEHR GMBH & CO KG
View PDF13 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Of course, incorporating nanoparticles into polymers and coating them on surfaces requires an additional manufacturing process and corresponding equipment, which adds to the cost

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

[0031] In one embodiment of the flux, the basic material potassium fluoroaluminate (the molecular formula is K (1-3) AIF (4-6) , The trade name is "Nockrock) add nano titanium dioxide particles. To this end, add 3% by volume of titanium dioxide particles and 772g potassium fluoroaluminate to a mixture of 300ml of polyurethane binder and 700ml of deionized water, and then The mixed liquid is stirred for about 30 minutes at a stirring speed of 20,000 revolutions per minute. Then the mixed liquid is filtered through a stainless steel sieve with a mesh size of 250 μm to obtain 1.5 kg of usable flux. The composition is as follows: 42 Weight% potassium fluoroaluminate, 3 volume% titanium dioxide particles, 2.6% by weight polyurethane binder and 52.4% by weight deionized water.

[0032] In the brazing process of aluminum parts of aluminum heat exchangers, a nano-particle-containing flux can be used to obtain a photocatalytic covering layer that oxidizes organic impurities under the actio...

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 object of the present invention is to provide a flux for component brazing, which produces one or more special surface characteristics during its welding process, thereby eliminating the need for surface treatment steps after the conventional welding process. To this end, the invention incorporates nanoparticles into a base material.

Description

Technical field [0001] The invention relates to a flux for brazing metal parts. In addition, the present invention also relates to a method of manufacturing the flux, a brazing method and the application of the flux. Background technique [0002] When brazing metal materials, at least a part of the oxide layer on the surface must be removed before brazing, and a new oxide layer must be prevented from forming during the brazing process. Usually, this step is done through a special metal oxide solvent, the so-called flux. [0003] Due to the material properties of metals, commonly used fluxes are generally non-corrosive and non-moisture-absorbing. DE 199 13 111 A1 discloses a zinc-containing flux, the zinc component of which forms a corrosion-resistant surface on an aluminum-based component. EP 0 659 519 B1 also discloses a zinc-containing flux that can improve corrosion resistance. DE 100 154 86 A1 discloses a flux using potassium fluorostannate and / or cesium fluorostannate as mat...

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
IPC IPC(8): B23K35/362B23K35/02B23K35/36
CPCB23K35/0244B23K35/3605B23K2203/10B23K2103/10
Inventor 斯涅托娜·博格彼得·恩勒特马蒂亚斯·普菲策尔扎比内·泽德尔迈尔英戈·特劳特魏因
Owner BEHR GMBH & CO KG