2011年6月1日星期三

Taught you how to identifying the marble

marble from yunnan Dali's original refers to white with black decorative pattern can be formed the limestone, profile picture of ancient natural landscape painting, and the ink has molding pattern often choose the marble used to make colors hold or Mosaic, then gradually developed into the marble the name call all have various color decorative pattern, used for building decoration materials limestone, white marble, but generally called white marble statue of translation western making white marble also known as marble. Marble is mainly used for machining into various shape material, plank, for building metope, ground, Taiwan, columns, and also used to memorial buildings such as tablet, tower, statue and so on material. Marble can also carved into crafts, stationery, lamps and lanterns, vessels practical artwork.

Marble evaluation and identification:

Choose good level: according to size allows deviation, flatness and Angle tolerance, and its appearance quality, surface finish such indicators, marble into classy article, first-rate product and qualified three levels; The marble grading, identify mainly through the instrument, measuring detection to identify.

Check the appearance quality

Different grades of marble look different. Because of natural marble is formed, defect unavoidable. Meanwhile processing equipment and measuring quality is also causes the defect reason plank. Some plank board body do not plump (warp or depression), board body have defects (crack, sand holes, mottle etc), plate body specification is differ (such as lack of edges, plate body etc. Were According to the national standards, the grades of marble are allowed to have some shortcomings, but it is not so obvious sessions.

Tonal choose decorative pattern

Marble colorful, tonal and diversity, decorative pattern, this is all the same marble plate rare charm. Tonal basic consistent, color is smaller, decorative pattern beautiful the manifestation of fine varieties, otherwise, it will seriously affect adornment effect.

Test surface gloss

Marble surface gloss height will greatly influence the adornment effect. Generally speaking quality marble polishing face should have the same burnish, can mirror reflected clearly scenery. But different quality marble because different, even chemical composition, the same level of product will be of great differences are also gloss. Of course the same material between different grades of plate surface gloss also can have certain differences. In addition, marble's strength, bibulous rate is an important index of quality evaluation marble.

A view

Namely macroscopic observation of stone material surface structure. Generally speaking, uniform fine material structure of the stone has exquisite qualitative feeling, for shi caizhi beautiful is tasted; Thick bead and differ the stone material of grain structure its exterior effect is poorer. In addition, the effect of stone because geology in which produce some subtle often most easily crack, stone material along in these areas, we should pay attention to eliminate rupture. As for lack of edges affect beautiful, when the choice is especially should note.

Two quantity

The specification is quantity stone, lest affect joining together, or cause after mosaics pattern, pattern, line deformation, effect decorates the effect.

3 listen to

That is listening stone percussion. Generally speaking, good quality stone its chiming ringing and euphonic; Conversely, if the stone exist because of weathering cause mild fissure or particle become loose, criterion knock voice is husky dumb.

Four try

PNP simple test methods to test the stone material of good quality. Usually on the rear drop in stone small-scale ink, such as ink soon infiltration out four sanctions, namely that stone internal particles loose or existence aperture, stone material quality is bad; Conversely, if ink drips to be not moved in place, then explaining stone texture is good.

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