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Marble blackboard manufacturing technology

A manufacturing process and marble plate technology, applied in the field of teaching aids, can solve problems such as discoloration, deterioration, and unfavorable students to see the blackboard clearly, and achieve the effects of preventing deterioration, long service life, and improving appearance quality

Active Publication Date: 2018-12-14
GUANGXI DONGXING DINGKANG PLASTIC IND
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Problems solved by technology

In the prior art, marble is widely used in furniture manufacturing. Marble has a smooth surface and a fashionable appearance, and has become one of the decorative raw materials that people like. However, blackboards made of marble are not common. The reason is mainly because The surface of marble is relatively smooth, but if the surface of the blackboard is too smooth, visible light will be specularly reflected on the surface of the blackboard, which is not conducive to students seeing clearly the handwriting written on the blackboard. Sandblasting technology is widely used in the prior art to improve The roughness of the surface of the object, however, the marble material itself belongs to the calcium carbonate rock series. When the ambient temperature exceeds 180 ° C, there will be deterioration and discoloration inside the marble, which brings great challenges to the application of marble and the sandblasting process. difficulty

Method used

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Embodiment Construction

[0024] The technical scheme of the present invention will be further described below in conjunction with the accompanying drawings, but the required protection scope is not limited to the description;

[0025] The invention provides a marble blackboard manufacturing process, such as figure 1 , figure 2 shown, including the following steps:

[0026] Step 1: Take a natural marble slab, use a milling machine to mill the marble slab, remove most of the material on the marble slab, make its surface roughness less than 25 microns, and make it have a regular cuboid shape; further, use a milling machine The process parameters for milling marble slabs are: spindle speed 800r / min~1200r / min, feed rate 60mm / min~80mm / min.

[0027] Step 2: Grinding the marble slabs with a grinding machine, so that the surface roughness of the marble slabs reaches below 12.5 microns to obtain the blackboard base 1; further, the process parameters for grinding the marble slabs with a grinding machine are: ...

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Abstract

The invention relates to a marble blackboard manufacturing technology. The technology comprises the steps that a marble board is milled, the marble board is ground to form a blackboard base layer, a blackboard face layer is manufactured through cutting, the blackboard face layer is soaked, the blackboard face layer is cleaned, sand blasting is carried out on the blackboard face layer, the blackboard face layer is baked and cooled, and the blackboard base layer and the blackboard face layer are bonded to form a marble blackboard. By adopting the technical scheme, the blackboard base layer is flatter and more smooth through cutting, the blackboard face layer and the blackboard base layer are bonded more firmly and reliably, the product appearance quality is improved, the blackboard face layer is soaked in a pretreatment solution before sand blasting, redundant impurities are removed, high-temperature baking is carried out after sand blasting, sand blasting materials are completely and reliably attached to the blackboard base layer, students can observe and learn words on the blackboard, and the manufactured marble blackboard has the advantages of being solid, durable, long in servicelife, fashionable in appearance and the like.

Description

technical field [0001] The invention belongs to the technical field of teaching aids, and in particular relates to a marble blackboard manufacturing process. Background technique [0002] Blackboard is a widely used teaching tool in the existing classroom teaching activities. Its preparation materials are mainly made of alloy steel plate, frosted glass, wood board, concrete and various new composite materials. The basic structure of the existing blackboard is in a certain The board surface of this material is coated with a wear-resistant writing coating, and then made into a certain size for use according to needs. It is inseparable from chalk and pens with similar functions during use. In the prior art, marble is widely used in furniture manufacturing. Marble has a smooth surface and a fashionable appearance, and has become one of people's favorite decorative raw materials. However, blackboards made of marble are not common. The reason is mainly due to The surface of marbl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28D1/00B43L1/06
CPCB28D1/003B43L1/06
Inventor 王小兰
Owner GUANGXI DONGXING DINGKANG PLASTIC IND
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