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Discussion on the glue mending technology of stone
Date：2019-12-19 09:30:00
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As we all know, the stone will inevitably be damaged. The physical properties of the stone will be changed, the gap between the crystal particles in the stone will be healed, the cracks will be bonded, and the strength of the stone will be significantly improved. At the same time, the surface of the stone will be more bright and bright after being rubbed, and it can also To prevent some loose stone in the process of cutting edge phenomenon.
III. quality requirements for stone glue repair
The quality of repaired stone plate or other stone products shall meet the quality requirements in the compilation of stone quality standards. The back and side parts of the stone plate which are treated by glue repair should be treated accordingly. The surface of the stone plate treated with glue shall be smooth and flat.
IV. mechanical rubber patch (flow operation mode) and manual rubber patch (trolley or platform mode)
V. operation procedures and steps of stone glue repair:
Vi. the following principles shall be followed for glue repair of stone materials:
I. brief introduction
The implementation of stone glue mending technology solves many natural defects of stone, so stone processing enterprises attach great importance to it. Here we have a topic of communication. Due to various defects of natural stone, many stones must be rubbed before polishing.
II. The necessity of stone glue repairDue to the influence of natural factors, the surface of stone can show defects such as crack, hole, sand hole, damage, fracture, collapse corner, loose material and so on. These defects lead to the reduction of the rate of excellent stone products and the reduction of the ornamental value and grade of the surface, so the stone glue repair plays an important role in the stone processing technology.
1. Make up and repair the natural defects of natural stone. Like the common chicken claw pattern, craze, sand hole, stone pit, loose and damaged material in granite and marble. After mending, the defective stone can become more perfect, gorgeous and crystal clear, so as to obviously improve the quality of stone and increase its value.
2. Prevent stone from pathological changes and pollution. As the filling of glue into the small cracks and sand holes, the surface condition of the stone has been greatly improved. The dust and liquid pollutants are not easy to invade the stone surface, reducing the hiding opportunities of various pollutants, so as to prevent the stone from being polluted and pathological changes.
3. Slow down the fading of stone. On the one hand, the formula of ultraviolet factor is added in the stone strengthening agent, which can prevent the damage of ultraviolet to the color of stone; on the other hand, the repair of the stone surface can prevent the invasion of dust and liquid, which can keep the natural color of stone more lasting. After polishing, if there are some defects in the stone, the local treatment can be carried out by patching to restore its natural color.
4. Make the stone have stronger binding force, and the compressive strength and impact strength will be greatly strengthened. As the glue is a kind of high polymer material, it has a very strong adhesive force and cohesion, and the stone after the glue repair also has this characteristic, and the strength of the stone has been greatly improved.
The quality of repaired stone plate or other stone products shall meet the quality requirements in the compilation of stone quality standards. The back and side parts of the stone plate which are treated by glue repair should be treated accordingly. The surface of the stone plate treated with glue shall be smooth and flat.
There are two ways to mend stone glue: mechanical and manual.
1. Mechanical rubber patch (flow operation mode)
The production efficiency is high and the automation degree is high. It is suitable for large quantities of stone gluing. The mechanical equipment of the operation method is generally composed of a flap machine, a conveying line, a dryer and a control box. The operation process is: clean the board surface - drying - adding mesh - glue patching board surface (facing or back) - drying (secondary glue patching + three times drying)
2. Manual rubber patch (trolley or platform mode)
Manual glue mending is a simple process for stone surface treatment. It can be used to repair a small amount of stone with low production efficiency, but it can effectively solve the role of splicing stone. It is essential for the stone processing process, especially suitable for the repair of special-shaped stone crafts. It is an effective method for local treatment of stone.
Local treatment of manual rubber patching mainly adopts the methods of "digging", "patching" and "filling". The so-called "digging" is to dig out the defects of stone, and then use the stones with similar colors and lines to fill the places where the stones are dug, and then use the glue with the same color to stick the stones firmly. The smaller the gap, the more natural it is.
V. operation procedures and steps of stone glue repair:
1. Clean the dust and other dirt on the board surface before glue repair, and dry or dry the wet board.
2. Place the stone materials to be repaired on the bracket or flat plate, and the broken plate shall be cleaned and dried. The crack or fracture shall be bonded with the glue close to the natural color of the stone. When bonding, the external force shall be used to impact to make it more firmly bonded.
3. When using the mechanical patching method, it is necessary to decide whether to add a strong mesh according to the material conditions. After the mesh is added, the surface of the stone shall be patched after it is turned over by the turning machine.
4. Determine the amount of glue according to the quality of the stone board, and mix the adhesive and drier according to a certain proportion, and mix the two materials evenly.
5. Brush the prepared adhesive on the board surface or fill in the cracks, and scrape evenly with a blade.
6. Observe whether there is leakage of adhesive at the place where there is crack on the board surface. If the adhesive does not fill the crack, carry out secondary or multiple glue filling until the crack is filled with glue.
7. The board after glue mending shall be placed for several hours before polishing.
8. After grinding and polishing, if the color effect of the glue patch is not good, it is necessary to dig out and re glue.
9. The stone material shall be repaired with certain tools and means. A guiding rule shall be used to level an edge to ensure the straightness of the repaired material.
10. When repairing the plate, it can be placed horizontally or vertically. The method of vertical placement can make the glued plate more firm with the help of the gravity effect of the plate.
1. In principle, the glue repair trace meets the design requirements and the natural texture of the original stone.
2. The color of the glue at the glue patch shall not be lost in the natural color of the board surface, otherwise the color is too conspicuous and easy to show the traces of glue patch.
3. The stone used for rubber patch shall not be of regular shape, so that it is not easy to see traces of artificial treatment at the rubber patch.
4. The stone material shall be grinded and polished again without any traces and uneven appearance.
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Beijing Sarlsson New material Co,.Ltd.
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Anhui Adress：Economic Development Zone Huaiyuan Country Anhui Province
Anhui Telephone： 0552-8698885 / 8698886 / 8698887
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