A kind of no-cleaning liquid aluminum flux and preparation method thereof

Abstract

The invention relates to a no-cleaning liquid aluminum flux and a preparation method of the no-cleaning liquid aluminum flux. The preparation method comprises steps of: 1) weighing 60 to 85% of fluorate hydroxylamine, 5 to 30% of metal active salt, 1 to 5% of active agent, and 0.1 to 5% of corrosion inhibitor by weight, and uniformly mixing to obtain an active object for later use; 2) weighting 15 to 30% of active substance, and 70 to 85% of solvent by weight for later use; 3) mixing the weighed solvent and active substance along with continuous agitating, then heating to 50 to 60 DEG C, agitating for 8 to 12 minutes, and then transferring into a sealed plastic container for storing, so as to obtain no-cleaning liquid aluminum flux. The no-cleaning liquid aluminum flux provided by the invention is high in weldability and welding efficiency; less splash is generated during welding, and the welding is nearly free of splashing, so that the welding flux can be saved; and fewer residues are generated after welding, and the welding spots do not need to be cleaned, so that long service life can be ensured.

Description

technical field

[0001] The invention relates to a flux, in particular to a no-cleaning liquid aluminum flux for aluminum soft soldering products in the electronic industry field and a preparation method thereof. Background technique

[0002] At present, the rapid development of the electronic and electrical industry has put forward higher requirements for the matching soldering materials. At the same time, the importance of human health has been paid more and more attention to. A series of measures are used to improve the earth's environment on which human beings depend. The United Nations Environmental Protection Agency has also proposed a deadline to change substances harmful to the atmospheric environment. However, due to the high reliability requirements of some products in the electronic and electrical industry, the existing fluxes must be cleaned after welding to ensure the performance of the products due to performance reasons. Most of the cleaning agents used now are...

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