High-air-permeability high-durability filter paper for hydraulic filter

Abstract

The invention discloses high-air-permeability high-durability filter paper for a hydraulic filter. The filter paper is prepared from, by weight, 50-55 parts of 3-5mm alkali-free superfine glass fibers, 55-60 parts of bleached softwood pulp, appropriate amount of distilled water, 0.8-1 part of anionic polyacrylamide, appropriate amount of concentrated sulfuric acid being 98wt% in concentration, 10-12 parts of nano titania, 20-25 parts of ferroferric oxide colloidal solution with solid content being 30%, appropriate amount of absolute ethyl alcohol, 60-65 parts of fluorosilicone emulsion with solid content being 40wt%, 0.8-1 part of polyacrylamide, 1.8-2.2 parts of styrene-butadiene emulsion, 2-3 parts of calcium bicarbonate, 6-7 parts of zirconium oxide, 3-4 parts of expanded graphite and 9-10 parts of sodium hydroxide solution with concentration being 1wt%. The filter paper is excellent in strength, toughness and durability, and service life of hydraulic oil can be prolonged.

Description

technical field [0001] The invention relates to the technical field of filter paper, in particular to a hydraulic filter filter paper with good air permeability and good durability. Background technique [0002] Nowadays, our society is developing rapidly, and most enterprises will choose mechanical operation methods in the construction process. With the continuous improvement of science and technology, in terms of mechanical operation, enterprises have applied the construction method of mechatronics. During the use of machinery, no matter how carefully the operator installs and operates the equipment, it will inevitably cause varying degrees of pollution to the hydraulic oil. The maintenance of hydraulic oil will take a lot of time and money, so hydraulic oil has become a part of the mechanical use process. the most important part of the. During the use of the machine, the hydraulic oil is mainly used to penetrate other parts for operation. Due to the water, gas and dust ...

AI Technical Summary

Problems solved by technology

However, the filter paper used in this article is ordinary filter paper, which does not have good high temperature aging resistance and corrosion resistance, and the filter paper will be damaged under pressure for a long time, resulting in filter failure, which will directly increase the production cost, and should be developed. A filter paper that can be easily replaced, not only can resist a certain pressure, has good strength, can be used in high temperature oil, but also can filter the moisture in the hydraulic oil and the mechanical impurities in the system, etc., at the same time save costs