Biopolymer bindings for casting manufacturing processes on the technological lignin basis

Abstract

The paper analyzes the problem of using technological lignins to make new bindings for casting manufacturing processes. The reasons, restraining their application in casting manufacture, are considered. The objective (based on the physical nature of the material) and subjective (based on commercial benefit) reasons are presented. The paper considers the perspectives of application of technological lignins by the example of technological lignosulfonates use which is the main representative of the technological lignins family on the Russian market of bindings.

The Research of the Possibilities of Using Purge Methods for the Manufacture of Casting Cores from Mixtures Based on Secondary Polymers and Technical Lignosulphonates

“…These include developments relating the use of lignincontaining binders, such as technical lignosulfonates (LST). Such technical solutions are described in scientific articles [16,17], in case of existence of appropriate technological equipment described, for example, in [18], it would be possible to create a process similar to Cold-Box-Amin. In this regard, it is reasonable to conduct the adaptive search experiments to determine the principal possibility or impossibility of such technical solutions.…”