Experimental method and device for detecting relative viscosity of phenolic resin

Abstract

The invention relates to an experiment method and device for detecting relative viscosity of phenolic resin. The method comprises the steps of preparing phenolic resin to be detected; keeping the phenolic resin at a specific temperature; soaking one end of a columnar stainless steel bar of particular specification into the phenolic resin to a certain depth; keeping the columnar stainless steel bar for a period of time until the resin surface is flat; lifting the stainless steel bar out of the phenolic resin in the vertical direction at a certain speed, wherein a resin stripe is formed with the lifting of the stainless steel bar because the phenolic resin is adhered on the surface of the stainless steel bar; recording the stainless steel bar lifting height, which is used for evaluating the relative viscosity of the phenolic resin, when the resin stripe is broken. The experiment method and device provided by the invention are simple, and can directly and quantitatively represent the relative viscosity of phenolic resin for refractory materials, thereby realizing more accurate control of quality stability of phenolic resin, finding abnormal property condition of phenolic resin, and avoiding irretrievable loss for production.

Description

Technical field [0001] The invention relates to the characterization of the viscosity characteristics of a phenolic resin for refractory materials, in particular to an experimental method and a device for detecting the relative viscosity of the phenolic resin. Background technique [0002] Phenolic resin is a commonly used binder for refractory materials, such as MgO-C bricks for ladle, Al 2 O 3 -MgO-C bricks; Al for torpedo tanks, mixers and ladle 2 O 3 -SiC-C brick; Al for continuous casting 2 O 3 -C skateboard, Al 2 O 3 -ZrO 2 -C slides, etc., mainly use phenolic resin as the bonding agent. Using phenolic resin as the binder, the mixture has good plasticity and is easy to form; after baking at a proper temperature, it can form a carbon bond in the brick body, with high strength and good toughness. Therefore, phenolic resins often become one of the key control objects for the quality stability of the above shaped refractory products. [0003] The main indicators of phenolic ...

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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 phe...

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