How to judge titanium tableware
Titanium is a non-toxic element recognized around the world. The "Metal Handbook" edited by the American Institute of Metals, an authoritative American organization, points out: "Titanium and its compounds are almost physiologically inert to the human body, and titanium metal is the only metal that is toxic to the human body." "Titanium ions do not transfer with blood and body fluids in the human body." Titanium is expensive and expensive to mine and produce. Because it has a series of qualifications such as high and low temperature resistance, strong acid and alkali resistance, high strength, and low density, it has become a special material for NASA rockets and satellite models. It has also been used in my country's Yutu, J-20, Shandong aircraft carrier and other super projects. After entering the civilian field in the 1980s, it turned into the "privileged metal lord" in the food business due to its regular antibacterial and biophilic properties.
Presently, as individuals give increasingly more consideration to wellbeing capabilities, numerous companions have started to come into contact with titanium metal and titanium family items, including titanium flatware, titanium water cups, and so forth. In the period of utilization updating, an ever increasing number of organizations are starting to come into contact with titanium metal and titanium family items, including titanium silverware, titanium water cups, and so on. Naturally, people want to see this metal's endless potential for home consumption. As another sort of metal item that has quite recently entered the public eye, how might we guarantee that the titanium items we purchase are genuine titanium? Titanium items themselves are costly, and nobody will burn through cash to pay the "Intelligence level expense", so it is especially essential to figure out how to recognize titanium items!
1. Feel and weigh
Titanium has low thickness, high strength and high unambiguous strength, so unadulterated titanium is lighter. Titanium has a density of 4.51g/cm3, which is 57% higher than steel's. It weighs simply over a portion of that of steel and not as much as two times that of aluminum. It is multiple times more grounded than aluminum. The particular strength of titanium amalgam is the biggest among normally utilized modern combinations. The particular strength of titanium combination is 3.5 times that of tempered steel, 1.3 times that of aluminum compound, and 1.7 times that of magnesium composite. Unadulterated titanium woks are around 30% lighter than standard iron woks.
2. Color contrast
The natural metal color of titanium alloy is off-white, and its color and texture are different from stainless steel and aluminum alloy. Since titanium alloy is difficult to polish and color, the surface of titanium alloy products is usually mechanically polished or frosted. There are also a few high-end titanium alloy products that are partially polished to a mirror surface, while the mechanically polished and frosted surface colors are gray or dark gray unique to titanium alloys. However, in order to make the products more ornamental, some businesses will also use surface treatment to make titanium products show brilliant colors without the need for spray painting and coloring.
3. Discoloration due to high temperature
Titanium metal is very stable in room temperature air.Solely after warming it to high temperature for a while will the "beautiful" changes happen. This is chiefly in light of the fact that when titanium metal is warmed in the air, it will oxidize with oxygen to shape a thick oxide film. In addition to protecting the titanium metal's surface, this oxide film is the primary cause of titanium's color change.
The reaction equation of titanium oxidation is Ti O2==TiO2, and the reaction condition is high-temperature heating. When the heating temperature is low, the oxide film on the titanium surface is almost transparent and difficult to detect with the naked eye. But when the temperature rises, the oxide film inside the pot will slowly thicken and refract light. Different colors also appear in the human eye. Therefore, the thickness of the oxide film determines the color of the titanium surface.
4. Magnetic reaction
Titanium is a non-magnetic metal and will not be magnetized in a large magnetic field. It is non-toxic and has good compatibility with human tissue and blood. We can use the magnets around us as evidence.
5. Excellent corrosion resistance
Titanium is a very special metal, known as the "space metal". The passivation of titanium depends on the presence of an oxide film. Its corrosion resistance in oxidizing media is much better than that in reducing media, where high-speed corrosion can occur. Titanium is not corroded in certain corrosive media, such as seawater, wet chlorine, chlorite and hypochlorite solutions, nitric acid, chromic acid, metal chlorides, sulfides and organic acids. The famous highly corrosive "Aqua Regia" can swallow up silver and gold, and can even corrode so-called "stainless" stainless steel, leaving it unrecognizable. However, "Aqua Regia" has nothing to do with titanium. Cups made of this material are not only very light, but also very tough and corrosion-resistant. They do not darken like silver and retain their color at room temperature for life.
6. Ceramic experiment
Ceramic is the best way to test the purity of titanium. Score titanium products hard on our white ceramic mugs or ceramic products to leave marks. The darker the marking, the purer the titanium. This is because although titanium tableware is very safe for the human body, due to the low hardness of titanium material and poor wear resistance, when titanium tableware is used with ceramic bowls, ceramic plates, etc. to hold food When the tableware scrapes against each other, the titanium metal is worn, and the worn titanium turns into fine metal powder, which adheres to the surface of ceramic bowls, plates, etc., forming very obvious marks.
