A kind of nano-ceramic pulp grinding disc and its production method

Abstract

The invention discloses a nano-ceramic paper pulp abrasive disc and a production method thereof. Raw material components of the nano-ceramic paper pulp abrasive disc include nanometer corundum and nanometer fused alumina zirconia, and the disadvantages of poor toughness and low corrosion resistance are solved, the service life of pulp abrasive discs is prolonged, and production of high-end nonmagnetic paper pulp is realized. The production method of the nano-ceramic pulp abrasive disc comprises the following steps: (1) preparing the raw materials; (2) carrying out pressure forming; (3) carrying out isostatic compaction; (4) machining a blank; (5) carrying out high temperature sintering; and (6) carrying out abrasive machining. The method solves the technical problem of difficult demolding of special-shaped paper pulp abrasive discs, and opens up a new way for production of special-shaped ceramics.

Description

technical field [0001] The invention relates to the production of pulp grinding discs in the field of papermaking, in particular to a nano ceramic pulp grinding disc and a production method thereof. Background technique [0002] The pulp refiner is the "heart" of the refiner, and its working environment is harsh, requiring it to have the unity of wear resistance, acid and alkali corrosion resistance and high toughness. [0003] At present, the pulp grinding discs are mostly made of stainless steel or high-chromium cast iron. Stainless steel has good corrosion resistance, but low wear resistance. High-chromium cast iron has good wear resistance, but poor corrosion resistance. The service life of pulp grinding discs made of these materials is longer Low, it will be replaced in January-February, resulting in many shutdowns, high production costs, and waste of precious metals such as Ni and Cr. [0004] For non-magnetic pulp grinding discs, iron ions in stainless steel or high-...

AI Technical Summary

Problems solved by technology

[0005] The invention provides a nano-ceramic pulp grinding disc and its production method, which solves the shortcomings of the existing ceramic grinding discs such as poor toughness and non-corrosion-resistant pulp grinding discs, and provides a combination of corrosion resistance, wear resistance and high toughness. Advanced ceramic pulp refining discs to improve the service life of pulp refining discs and realize the production of high-end non-magnetic pulp

It also provides a production method of nano-ceramic pulp grinding discs, which solves the technical problem of difficult demoulding of special-shaped pulp grinding discs, and provides a new method for the production of special-shaped ceramics