How to make "antique stone" for stone grinding brush

The so-called "antique stone", the natural granite or marble is specially treated to make the surface of the stone appear like natural wave surface or crack after weathering, and the natural wear effect (approximating matt or mercerizing effect) occurs when the stone is used for a long time. In general, the natural stone is processed like an old effect after hundreds of years of use.

Natural stone antique processing advantages

The stone antique processing can have the uneven silky effect of the satin surface, revealing the natural crystal luster of the stone, and has a unique decorative effect; at the same time, it also improves the waterproof performance of the antifouling performance of the stone, and can play an anti-slip effect. Stone antique processing can also avoid light pollution in buildings due to specular reflection. At the same time, antique stone is easy to repair after wear. At the same time, the color chromatic aberration is smaller than the polishing process, and it also reflects the concept of natural environmental protection.

The main tool for natural stone antique processing

Stone abrasive processing main equipment stone abrasive brush (AbrasiveBrushe), it mainly has three kinds: nylon brush, wire brush mixing brush.

The nylon brush is made of high-quality silicon carbide and special nylon material, which is made by firmly fixing a brush base. It is mainly used for marble antique grinding. The wire brush is made of stainless steel wire or low carbon steel wire, and is mainly used for hard stone brushing such as granite. The mixing brush is made of special nylon stainless steel wire to make the grinding brush.

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. Its Frankfurt type is used in the industrial production of stone hand-held grinding machines, grinding and polishing production lines, ground refurbished machines, etc.; round for small manual polishing machines, ground refurbished machines, etc.; Fickert type for automated continuous grinding machines.

Natural stone antique surface processing

Because the granite marble material structure is different, each has its own characteristics, so the granite antique stone marble antique stone processing method is different.

Marble antique surface processing

Since different marble materials vary greatly, the processing method should be selected according to the difference in marble characteristics of each variety.

Marble containing more calcium carbonate or cracked holes can be soaked and etched with hydrochloric acid, soaking time is about 10-20 minutes (depending on the specific stone type); then use steel brush to attack cracks and hole residue to increase the three-dimensional feeling of the stone surface, and finally It is polished in a sequence from a coarse number to a fine number of abrasive brushes until the surface of the board reaches the customer's desired gloss.

If the marble is more marble, it can be directly processed by steel brush. You can also use the steel wire brush to brush out the uneven surface effect. Then use the grinding machine from the coarse to the fine number to grind the polishing. Usually use 180#, 240#, 320#, 500# grinding brush to process just fine, if the texture is relatively hard marble can increase the previous several steps.

Granite antique surface processing

Due to the hard texture of the granite, the granite plate is first processed into a rough surface fire plate or a thick plate by fire or high pressure water rushing (it can also be processed into a lychee sandblasting surface, etc., but the effect is not very good), pay attention to when processing into a rough surface It should be rougher than ordinary singeing board, so as to avoid the slab being too smooth when using the stone grinding brush in the next step, so that the layout surface loses the three-dimensional effect.

Then use the stone abrasive brush for brushing, pay attention to the best use of the wire brush first; to carry out a rough brush, brush the loose surface of the granite surface and shape, so that not only high efficiency, but also wear less equipment, can extend the life of the abrasive brush .

Then, according to the specific requirements of the customer, use the grinding brush from the coarse number to the fine number to grind and discard until the board surface achieves the desired 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 processes; if you want to achieve the mercerizing effect, Then you need to add 240#, 320#, 500# three processes, of course, if all the processes are done better. As for some of the glossiness requirements, some outdoor panels can be directly polished with a wire brush.

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