grade gr 7 Titanium material found

How to distinguish a titanium frame ?

Titanium material found

Development of titanium materials: a German chemist in 1794 ( two hundred and seven years ago ) discovered this new metal element and named it titanium titanium. Named by sources from the ancient myth of the West Prince Titan ( Titan ) , titanium grade 5‍ because he believes that super-strength titanium and ultra- refractory degree , working with the great Titan with shine .

Although titanium material in the Second ○ was discovered seven years ago , but due to refining process was not easy ( titanium is very easy to combine with oxygen ) , scientists have been unable to be refined into useful substances metals. Until 1938 , DuPont developed a new way to extract , plus magnesium reduction method, the red and gold reserves in the ground ore , after chlorination, plus magnesium , restore it and become a sponge titanium, to a ninety-four three years , DuPont began producing a large number of titanium metal products.

Development of titanium frames

Titanium is a metallic chemical element , because the refining process is not easy, and less expensive titanium material production , it is only used in the early titanium aerospace science , marine science and other high-tech science and energy development . And daily necessities are to begin in 1965 applied to the titanium material .

The first titanium frame is in九八○年someone invented the " rivet -like titanium frames " titanium welding is a very difficult material, there is no better way to do early connection handling , use rivets type of way to put it nailed together. While in 1981 , the plant began outside coated with a layer of nickel titanium material to facilitate welding. An increasingly competitive market and month of the new manufacturing methods , 1982 Day MARUMAM company pioneered the first payment in full titanium metal frames around the world ; 1984 also has factories launched nickel-plated titanium frames , there is a big price difference .

Material development of titanium

1 . Full titanium : Frame in addition to the screws and plastic gloves for outside , all metal parts made ​​of titanium material .

2 . Nickel titanium package : Borders titanium material, the surface material using a nickel package , and now this frame no longer exists.

3 . Assembled Titanium: Due to the high cost of production of nickel and titanium package to update the device , it is not updated before , assembled titanium frames as the situation , but this product is dangerous because each metal has a titanium rings‍ different melting point, literally Putting it together will be very fragile. Early nickel- titanium frame package passes flattened angle , it 's not like a factory original border distribution of production so mean , so after use , nickel, and titanium -coated layer that will break out and no way to weld repair , titanium also includes assembling such a situation .

4 . Nickel-plated titanium : In order to reduce costs, make it easier on the production, but also come up with a factory nickel plated titanium . So then processed using conventional welding techniques .

How to distinguish between pure titanium frame

1 Check the weight.

2 Check magnetic reflection.

3 Check the hinge structure .

4 with a chemical reagent checked.

5 Test conductive index .

We can be a magnet placed on the table , then leaned over the frame , if it is not generating the magnetic response of titanium frames . Also check its hinge , titanium glasses are placed two plastic or metal liner in the hinge , in addition , because of different metals with different electrical conductivity , so with conductive index can be measured whether the titanium metal .

Now consumers in addition to care about aesthetics , but also pay great attention to security , such as European countries have regulations, things come into contact with human skin items ( such as glasses , watches , necklaces , etc. ) , if necessary ingredient containing nickel marked . Because the nickel whites sometimes cause skin lesions or skin cancer , so manufacturers and stores have a duty to inform .‍