Is ceramics harder than steel?
1、? The hardness of ceramics is greater than that of current steel, pure iron is softer than pig iron, and pig iron is more brittle than wrought iron. Pure iron is softer, but harder than gold and silver and has better toughness. ?
2、? The hardness of ceramics is 6.5 ~ 9.0 Mohs hardness. Zirconia ceramics have high hardness. The data given in the hardness test report of 3Y zirconia as a tool is more than 9, second only to diamond. The definition of diamond hardness should be 10, and the crystal hardness should be around 7, which is not as high as zirconia. Characteristics of ceramics: high chemical stability, high temperature resistance, high strength, wear resistance and corrosion resistance.
What is the manufacturing process of ceramics?
1, Mud training: firstly, collect porcelain stone from the mining area, bring it back and break it into egg size, then hammer it into powder, then wash off impurities and dissolve it into brick mud. After the mud is formed, add water and stir to remove slag, rub it by hand or step on it with your feet, so that the air in the mud mass can be purified and the mud at the bottom of the water can be evenly distributed.
2. Blanking: You need to use a winch to pull the blank, throw the mud on the winch, and then start the turntable. After that, the shape of the blank is drawn by bending, stretching, shrinking and stretching by hand. Blanking is a very necessary technology. First of all, you should be familiar with the shrinkage rate of mud, which is generally 18-20%. Can freely send and receive sizes according to different types and sizes.
3. Blank printing: In this process, the shape of the stamp is to install the inner arc of the blank for rotary cutting and then air-dry to semi-dry. Then cover the blank on the mold, evenly distribute it on the outer wall of the blank, and then demould it.
4. Blanking: First cover the blank on the pulley car, and when you start to turn the wheel, cut it with a knife. Only when the body thickness is necessary and the surface is smooth.
5. Drying the blank: This step is very simple, just put the blank formed by raw materials on the wooden frame to dry.
6. Engraving: Engraving tools are tools made of bamboo, bone or iron, and engrave patterns on dry blanks.
7. Glazing: ordinary round porcelain is dipped in glaze or glazed, and knives and big round porcelain are blown with glaze. After glazing, they are put into a kiln for firing.
8. Kiln firing: Take the porcelain out of the sagger first, and then bake the container. This is to prevent porcelain from being polluted by water. It must be baked for about one night, the temperature is about 1300 degrees, and the fuel is pine. Of course, technical guidance is needed to measure the temperature and control the temperature change of the kiln, and truce time is needed.
Do you understand that ceramics are harder than steel? What's wrong with the manufacturing process of ceramics? Now the hardness of ceramics is really high. Compared with some special ceramics, the hardness is definitely much harder than steel. There is no doubt that if you want to choose products according to hardness, it is definitely right to choose ceramics. As for the handicrafts made of ceramics, the production technology is in place and the materials used are similar.