Brazing Flux

"Brazing Flux, commonly referred to in the industry simply as flux, is an indispensable auxiliary chemical material in the brazing process. Its primary function is to break down and remove contamination and oxide films from the metal surface, allowing the molten liquid filler metal (brazing alloy) to flow smoothly, adhere firmly, and fill the joint clearances—ultimately bonding the two metal parts securely together.

Supporting Products

In the brazing process, apart from the core 'protagonists'—namely filler metals (brazing wires/pastes) and fluxes—there is an essential category of 'supporting players' known in the industry as Brazing Auxiliaries (or Auxiliary Products). Taking the industry-standard NOCOLOK® portfolio from global benchmark Solvay as an example, these auxiliary products encompass binders, stop-off agents, degreasers, and cleaners. Although they do not directly participate in the metallurgical bonding itself, their functions can be perfectly summarized into four core pillars: flow control, shape retention, quality enhancement, and efficiency boosting.

This product line includes 3 core models
Specification
Nocolok SURF 225
Nocolok Green-Filler-Stop
Nocolok Precoating
Application
作为悬浮剂添加剂的表面活性剂
阻止熔融的钎料流入不需要的区域,从而保持金属表面洁净,且不残留任何钎料
增强钎剂涂层的附着力,减少钎剂脱落和产生粉尘的情况
Technical Documents