Wear-resistant pen refill and preparation method thereof

Abstract

The invention provides a wear-resistant pen refill and a preparation method thereof. The wear-resistant pen refill comprises the following raw material in parts by mass: 30-90 parts of carbon powder,5-35 parts of phenolic resin, 0.1-8 parts of asphalt, 0.1-3 parts of iron powder, 0.1-2 parts of boron and 0.01-1 part of phosphorus, wherein the particle size range of the carbon powder, the iron powder, the boron and the phosphorus is 50-1000 meshes. The preparation method comprises the following steps: preparing a paste material, extruding the paste material into a blank, calcining the blank, and carrying out processing so as to obtain a wear-resistant pen refill coarse material. The raw materials of the wear-resistant pen refill provided by the invention are all environmentally-friendly materials, so the wear-resistant pen refill is free of pollution to the environment and harmless to the human body. The abrasion resistance of the wear-resistant pen refill is high and is far larger than the abrasion resistance of a pencil and a metal pen refill; the brightness and the gray scale of the wear-resistant pen refill are high; the core of the wear-resistant pen refill is high in fluidityand high in lubrication degree; the wear-resistant pen refill is not prone to oxidation, is corrosion-proof, has good stability and does not generate discoloration; the wear-resistant pen refill canbe used as a pen refill, is firm in pen point, does not fall powder in the writing process, and is safe and reliable; the wear-resistant pen refill is smooth in writing; handwriting can be stored fora long time and is not easy to deform; the hardness of the wear-resistant pen refill can reach an HB level; and the handwriting of the wear-resistant pen refill is easy to be cleaned by using an eraser.

Description

technical field [0001] The invention belongs to the technical field of pen core manufacturing, and in particular relates to a wear-resistant pen core and a preparation method thereof. Background technique [0002] Existing pens, including fountain pens and pencils, are generally applicable in life. In a pencil, the carbon atoms in graphite are arranged in layers, the binding force between layers is small, it is easy to scatter, and it acts on the surface of paper or other objects, which has poor wear resistance and fast consumption. And over time, it is easy to leave spots of ink marks. And due to the limited hardness of graphite, the problem of broken refill is prone to occur. [0003] For some special fields, such as the space station and the outer space where the manned spacecraft is located, the fountain pen can no longer be used, and the pencil marks are too shallow and easy to spread and blur. In addition, on the surface of some special materials, such as ceramics, ...

AI Technical Summary

Problems solved by technology

In a pencil, the carbon atoms in graphite are arranged in layers, the bonding force between layers is small, it is easy to disperse, it acts on the surface of paper or other objects, has poor wear resistance, and consumes quickly

And over time, it is easy to leave spots of ink marks

And due to the limited hardness of graphite, it is easy to break the refill

[0003] For some special fields, such as the space station and the outer space where the manned spacecraft is located, the fountain pen can no longer be used, and the pencil mark is too shallow and easy to spread and blur

In addition, on the surface of some special materials, such as ceramics, metal plates, etc., it is not easy to use existing pens or pencils to color

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