An experimental method and device for detecting relative viscosity of phenolic resin

Abstract

An experimental method and device for detecting the relative viscosity of phenolic resin. Take the phenolic resin to be tested and keep it at a specific temperature. Immerse one end of a cylindrical stainless steel rod of a specific specification into the phenolic resin to a certain depth, and keep it for a certain period of time until the resin liquid After the surface becomes flat, slowly lift the stainless steel rod vertically at a certain rate to separate it from the phenolic resin. Since the phenolic resin adheres to the surface of the stainless steel rod, a resin band will be pulled out as the stainless steel rod is lifted, and the resin band will be recorded. The lifting height of the stainless steel rod when it breaks, this height is used to evaluate the relative viscosity of the detected phenolic resin. The invention can simply, directly and quantitatively characterize the relative viscosity of the phenolic resin used for refractory materials, thereby realizing more precise control over the quality stability of the phenolic resin, discovering abnormalities in the performance of the phenolic resin in time, and avoiding irreparable damage to production loss.

Description

technical field [0001] The invention relates to the characterization of the viscosity characteristics of phenolic resins used in refractory materials, in particular to an experimental method and device for detecting the relative viscosity of phenolic resins. Background technique [0002] Phenolic resin is a commonly used binder for refractory materials, such as MgO-C bricks for ladles, Al 2 o 3 -MgO-C bricks; Al for torpedo pots, mixing furnaces, and ladles 2 o 3 -SiC-C brick; Al for continuous casting 2 o 3 -C skateboard, Al 2 o 3 -ZrO 2 -C skateboards, etc., mainly use phenolic resin as the binder. With phenolic resin as binder, the mixture has good plasticity and is easy to form; after being baked at an appropriate temperature, carbon bonding can be formed in the brick body, with high strength and good toughness. Therefore, phenolic resin is often one of the key control objects for the quality stability of the above-mentioned shaped refractory products. [0003]...

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that many small and medium-sized enterprises do not have standard instruments for detecting the viscosity of phenolic resin and cannot control the quality stability of phenolic resin, the present invention provides an experimental method and device for detecting the relative viscosity of phenolic resin, which has the advantages of simple operation, Quantifiable and other advantages

Images