Advice 1: How to grind stones

Natural stone requires multi-stage processing. It is cut and given the desired shape by treatment. Some stones need further processing, it depends on what he will do. Grinding and polishing will complete the work on the minerals.
How to grind stones
You will need
  • - scrapers;
  • - quartz sand;
  • such as polishing powder;
  • - grinding wheels;
  • special means for care of the stone surface.
Stone grind by smoothing the cut surface. This should remove the traces left by the tools during the treatment. Soft rocks – tuffs, sandstones svezhevyglazhennye grind iron or steel scrapers or graters, which are inserted into special wooden frames. Hard rock treat solid stones are also inserted in the mandrel.
Pour fine silica sand and add some water to prevent heating of stone and dust, which will not improve your health if you inhale it. Now sanding sticks made of emery, and carborundum. Start more large rough grinding material and finish more fine-grained and tender.
The concave and convex surface of natural stone handle bar with any profile. Further processing is needed only of a dense stone, with a small amount of time. The most part of sandstones, tuffs, coarse limestone cannot be polished, therefore, remain opaque.
Further work with iron or steel iron, rotating iron disk. Then change the tool on a wooden circle, covered with felt, bast, flannel, leather. The polishing powder used is different – emery, pumice, diatomaceous earth.
Make a paste, which you will need for further work. It consists of harpies or stearine, turpentine, dye hue of your stone. The surface heat coals, add the paste and slide a hot iron, remove the excess putty.
How to grind strongкамни/strong" class="colorbox imagefield imagefield-imagelink" rel="gallery-step-images"> Scratched and bad surface of the natural stone you can upgrade by grinding with special tools. Clean the countertop from dirt and grease stains – apply a very caustic detergent on the cloth and wipe the right place. Cleaner purchase for the stone, which needs to be refined. Read the instructions for use, as the method may be different.
Spray the product and RUB it with a soft, dry cloth. Remove excess and Polish the surface.

Advice 2: How to Polish stone

Polishing is the final process of stone processing, in which the surface acquires a mirror finish, reveals the figure, color and structure of the breed. Typically, the stone is polished with special devices and in several stages.
How to Polish stone
Before you Polish the stone, it is necessary to perform a polishing to remove all traces after the cutting of the stone. Grinding can be divided into three operations: roughing (coarse polishing), polishing and lapping - polishing. If you have no machine to process the stones do the grinding on the glass.
To do this, take the glass (thickness 6-10 mm), and pour abrasive powder, moisten it with water and do the grinding in a circular motion. For grinding you can use fine-grained sandpaper. If you are going to grind the stone on the machine, use a circle of cast iron, copper or lead. Make sure that the surface of these circles was flat and smooth.
To make polishing on the lathe, remove the faceplate, then a protective (plastic) body and thoroughly with soap and a brush wash them. The cleaned parts set re to the place, buff fasten, sprinkle the round pinch of the powder, moisten the powder with water and spread it in a circle. As the polishing powders can use aluminum, zinc, chromium oxide, diamond dust. Turn on the motor and Polish the stone. But for polishing stone the machine you can use felt, thick felt or cloth. Make of these materials are circles with a thickness of 10-20 mm and mount them on a cast iron faceplate with shellac, a wax, a mixture of wax with rosin, or pitch, but is sandwiched between the metal and a polished sheet material is rubber. Before polishing felt, felt, cloth circles slightly moisten. During grinding or polishing, stone hold and press down gently, the hand movement should be directed against the rotation of the circle.
If you need to Polish hard stones such as granite, Jasper, and use the circles made of wood alder, aspen, poplar or beech. But make sure that they are rotated at a speed of 200 rpm, since at low speed buffing produces the best quality. The gems of the same type have different polishing ability. Each stone must be individually number and combination of powders, the rotation speed of the drive pressure.
To check the polishing quality of stone, polished finish wipe with a clean cloth, stand near the electric bulb and try it on the surface of the stone to reflect a hair burning lamp. If the reflection is seen, it means the polishing was successful.If you don't have the polishing tools, polishing stone replace varnishing with the use of colorless nail Polish.
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