The antique processing of natural stone is favored by the market

Due to the change of stone design and decoration trend, the antique processing of natural stone is more and more widely used in the decoration and decoration of various buildings, which is very popular and favored by architects and consumers. In fact, the antique surface of natural stone is not a new processing method that has been developed in recent years. It was already in the 1990s. It is also used very early in China. For example, the “National Grand Theatre”, which was started in 2001, has adopted this kind of antique stone.
1. What is antique stone?

The so-called “antique stone” is a natural or special treatment, so that the surface of the stone appears similar to the natural wave surface or crack, and the natural effect of the stone after long-term use (approx. Light or mercerized effect). Popularly speaking, it is the processing of natural stone that looks like an old effect after hundreds of years.

2. Advantages of stone antique processing

The stone antique processing can have the uneven satin silk effect, showing the natural crystal luster of the stone and playing a unique decorative effect; It also improves the antifouling properties and waterproof properties of the stone and can provide an anti-slip effect. The antique processing of stone also avoids light pollution in buildings due to specular reflection of light. At the same time, antique stone is easy to repair after wear. At the same time, the color difference of the color is smaller than the polishing process, and it also reflects the value concept of natural environmental protection.

3. The main tool for antique stone processing

The main processing equipment for stone processing is the abrasive brush (Abrasive Brushe), which mainly has three kinds: nylon brush, wire brush And a mix of brushes. The nylon brush is made of high-quality silicon carbide and special nylon material. It is firmly fixed on a brush base and is mainly used for antique marble polishing. The wire brush is made of stainless steel wire or low carbon steel wire, and is mainly used for brushing hard stone such as granite. The mixing brush is an abrasive brush made of special nylon and stainless steel wire. Stone grinding brushes are classified according to specifications: Frankfurt type (horseshoe shape), round shape, Fickert type (brake type), etc.; according to the mesh number: wire brush, 36#, 46#, 60#, 80#, 120# , 180#, 240#, 320#, 500#, etc. Among them, the Frankfurt type is used for hand-held grinding machines, production lines, floor refurbished machines, etc. in the industrial production of stone; round for small manual polishing machines, ground refurbished machines, etc.; Fickert type is used for automatic continuous grinding machines.

4.Processing process of antique surface of natural stone

Because granite and marble are different in material and structure, each has its own characteristics, so granite antique stone and The processing method of marble antique stone is different.

5.Processing of granite antique surface

Because of the hard texture of granite, first use a fire or high-pressure water to make a rough surface of the fire board or thick panel (also Processing into lychee sandblasting surface, etc., but the effect is not very good), pay attention to the rougher surface should be rougher than the ordinary singeing board, so as to avoid the slate when the stone grinding brush is used in the next step is too smooth and make the layout The layout loses its three-dimensionality. Then use a stone abrasive brush for brushing. Note that it is best to use a wire brush first; to carry out a rough brush to remove the loose material of the granite plate surface and shape it, which not only has high efficiency, but also has little wear on the equipment and can prolong the grinding. The service life of the brush. Then, according to the specific requirements of the customer, the polishing brush is used to grind and polish from the coarse to the fine number until the board surface achieves the desired effect and gloss. If the customer wants to achieve a smooth matte effect, it is only necessary to use steel brush, 36# (or 46#), 60# (or 80#), 120# (or 180#) four steps; if it is to achieve mercerizing For the effect, you need to add 240#, 320#, 500# three processes, of course, if all the processes are done, the effect will be better. As for some outdoor panels that do not have any gloss requirements, you can use the wire brush directly.

6. Marble antique surface processing

Because the materials of different marbles vary greatly, the processing method should be selected according to the difference of marble characteristics of each variety. Marble containing more calcium carbonate or cracked pores can be soaked and etched with hydrochloric acid. The soaking time is about 10-20 minutes (depending on the specific stone type); then the steel surface is used to attack the cracks and holes to increase the stone surface. The three-dimensional sense is finally polished and polished by a grinding brush from coarse to fine, until the surface of the board meets the gloss required by the customer. If it is a marble with more calcite, it can be directly processed by steel brush. It can also be used to brush out the uneven surface effect with a wire brush, and then grind it with a grinding brush from coarse to fine, usually using 180 #,240#,320#,500# The grinding brush is just fine. If it is a hard marble, you can increase the previous steps.

(provided by Shenyang Building Materials Network) <

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