How can you tell if the glasses frame made of Kashman titanium frame is pure titanium or titanium al

1. Observe the welding points of the nose pad stem and the nose tray box The welding of pure titanium material is oxygen-free touch welding, and the welding marks are "step" shaped; The welding of alloy materials is spot welding, and the weld marks are "slope" shaped, which is one of the effective methods to distinguish between titanium frame and non-titanium frame, full titanium and non-full titanium frame.

2. Observe whether there is a gasket at the joint of the hinge The pure titanium frame should not make direct contact between titanium and titanium at the hinge part, otherwise the joint is prone to wrinkles and the temples are not open and closed. Usually two thin gaskets are inlaid in the hinges of pure titanium mirrors to separate the upper and lower hinges. Therefore, checking whether there is a gasket at the hinge is also a good way to identify whether it is a pure titanium frame.

If you look at the hinge joint from the inside of the frame, you will notice a small groove, which is specially designed to facilitate the removal of the spacer.

There are several main methods for the identification of titanium alloys:

1. Specific gravity: The specific gravity of titanium alloy is about 57% of that of stainless steel, which is easy to distinguish from the feel.

2. Color: The metal color of titanium alloy is gray-white, and the color and texture are different from stainless steel and aluminum alloy. Because titanium alloy is relatively difficult to polish and color, the surface of titanium alloy products is usually mechanically polished or frosted, and only a few high-end titanium alloy products are partially polished.

The mechanical polished and matte surface color is the grayish-white or dark gray characteristic of titanium alloys.

3. Strength: The strength of titanium alloy is higher than that of general stainless steel and aluminum alloy, which can reach 2 times that of stainless steel, and it is usually necessary to distinguish between alloy titanium and pure titanium, because the price difference between the two is very far, but in fact, their titanium content is not very different, and the titanium content of general alloy titanium is about 5% less than that of pure titanium. Usually, the ones used for the glasses frame are pure titanium, and the ones used for the glasses feet are alloy titanium, Yushan glasses will answer for you.

Generally, this is difficult to see, and it needs to be tested. Of course, pure titanium is actually similar to pure gold, and due to its own relationship, it is impossible to have the concept of pure elements. It refers to the fact that the titanium element in it can reach a certain percentage, so it is called pure titanium.

There are three types of metal materials used for spectacle frames: copper alloy, nickel alloy and ***.

It is required to have a certain hardness, softness, elasticity, wear resistance, corrosion resistance, light weight, gloss and good color, etc. As a result, almost all of the metal materials used to make spectacle frames are alloys or used after metal surface treatment.

1. White copper frame (copper-zinc alloy).

The main components are 64% copper, 18% zinc and 18% nickel, and the frame material is the cheapest and easy to process, and electroplating is mainly used to manufacture hinge threads, small parts and low-grade frames.

2. High nickel alloy frame.

The nickel content is as high as more than 80%, mainly nickel-chromium alloy, manganese-nickel alloy, etc., the corrosion resistance of high-nickel alloy is better, in addition, the elasticity of the material is good.

3. Monel frame.

Nickel-copper alloy, nickel content of 63% copper 28%, in addition to iron, manganese and other small amounts of metals, especially: corrosion resistance, high strength, strong welding, for the most used materials in the middle frame.

4. Pure titanium frame.

The specific gravity of titanium is only, it is very corrosion-resistant, and it is twice as strong as steel, and it is used in the manufacture of space shuttle cases, etc., and is called"Space metal", and there are no metal allergies. Titanium frames are generally referred to as Ti-P or Titan, and are basically made of titanium except for threads, hinges, and screws.

5. Memory titanium alloy frame.

It refers to a new alloy composed of nickel and titanium according to the atomic ratio of 1:1, which is 25% lighter than general alloys, and has the same corrosion resistance as titanium, and has very good elasticity. Memory Titanium:

It is characterized by shape memory below 0 and high elasticity between 0 and 40, and the corrosion-resistant type of memory titanium material is higher than that of Monel alloy and high nickel alloy, but slightly inferior to pure titanium and titanium.

6. Titan titanium alloy.

It refers to a special alloy formed by mixing pure titanium (70%) and rare metals such as cobalt and chromium (30%), and the ultra-light and ultra-elastic frame can be made very thin. Because it is an alloy stable type of titanium with rare metals such as cobalt and chromium, it will not produce ** allergies, and it will have greater development and popularization in the next few decades.

7. a gold-covered frame.

The process is to add brazing metal or direct stool mechanical combination between the surface metal and the virtual line substrate, compared with electroplating, the surface metal layer of the cladding material is thicker, and it also has a bright appearance, with good durability and corrosion resistance. Representation of gold-clad number: According to the regulations of the international conference, the weight ratio of gold to alloy is more than 1 20 products are expressed by GF, and products below 1 20 are expressed by GP.

8. K gold frame.

Generally, it is 18k gold, which means that the content of pure gold 24k in the frame is 18 24.

1.The tortoiseshell glasses are handmade, the color is like amber, warm and delicate, and the taste is luxurious and elegant. Due to its construction close to nails and hair (it will emit the smell of burning hair when burning), the contact with ** is the tightest, it will not be very slippery when sweating, it will not cause **allergies, and its hardness ensures that the glasses will not be deformed all year round.

2.Glasses made of acetate: made of high-tech plastic memory plates.

At present, most of the plate composition is acetate, and there are also a few high-end frames that are propionate. The acetate plate is divided into injection molding type and pressing and grinding type, and the injection molding type, as the name suggests, is made by pouring molds. The plate frame is also suitable for people with a high number of heights, because the frame is larger and can withstand the height of the lenses.

Plate glasses frames are easy to deform when they are removed with one hand for a long time. ​

Differences:1The metal mirror dust digging frame is more susceptible to deformation under the action of force, that is, the relative strength is large.

2.The relative flexibility of the injection molded frame is better, and it is not easy to change the shape and number quietly.

3.The metal frame can have a better gloss than the injection frame, but the style will be more monotonous.

4.The injection frame is much lighter than the metal frame and has a relatively low density.

PEI (polyetherimide) is an amber transparent solid, without adding any additives PEI raw material particles** have inherent flame retardancy and low smoke degree, oxygen Zhichun index of 47%, combustion grade of UL94-V-0, density of. PEI has strong high temperature stability, even if it is a non-reinforced type of PEI, it still has good toughness and strength. Therefore, the superior thermal stability of PEI can be used to make high-temperature heat-resistant devices.

It has excellent mechanical properties, electrical insulation properties, radiation resistance, high and low temperature resistance and wear resistance, and can transmit microwaves.

PEI resin not only has the characteristics of high strength and high modulus, but also has outstanding ductility. Its yield stretch extends so that it can be freely combined with a variety of easy-to-assemble fastener fit designs. Even with only 10% glass fiber reinforcement, PEI 2100 resin remains ductile at sub-zero to 200 degrees Celsius.

Impact Strength) PEI 1000 resin has excellent real-world impact resistance. Due to the notched sensitivity of PEI resins, it is recommended to adhere to standard design principles. Concentration points (e.g., sharp corners) in high modifications in the injection molding section should be minimized to provide maximum impact strength.

PEI AT*100 resin is designed for applications that require high impact performance. The notched izod impact of this series can reach up to 15km m.

Therefore, the PEI material will not be deformed under normal force.

Plate glasses frame judgment method:

1) Mosaic aspect:

That is, the various patterns are inlaid on the leg of the plate, seamless, without destroying the smooth surface of the plate, which not only subverts the traditional sticky diamond mode, but also provides new ideas and new angles for the diamond jewelry.

2) Composition:

Combine panels of different colors and materials.

3) Paint pointing:

That is, the operator uses a paint pen to apply at the temples, so that the paint adheres evenly to the plate legs.

4) Engraving:

On the original color and style of the plate, a computer engraving machine is used to engrave various patterns on the leg of the plate.

5) Corrosion:

Chemical agents are used to change the color of the plate legs, such as a light color to a dull color. Of course, if we take a closer look at the low-grade plate frames, we will find that their processes are relatively simple, and they generally do not use more elaborate processes such as material and inlay. Mid-to-high-end sheet frames often use a variety of processes to create extraordinary colors and combinations.

Lens Material Analysis:

A glass lens material.

Lenses made of this material are more scratch-resistant. High refractive index lenses have a high utility rate. Advantages: The clarity is relatively high, and the hardness is also relatively large. Disadvantages: The difference in color image is relatively large, which is easy to cause the peripheral vision to decrease, and the peripheral lines are bent and color appears.

Second, PC lens material.

The material of this lens is solid, and the main component is polycarbonate, which is a thermoplastic material. Lenses are formed only after heating, so these lenses are extremely tough and not easy to break, so they are called safety lenses. Advantages: Lightweight, safe, suitable for making glasses without frames, because they are not easy to break; Disadvantages: It is difficult to process, the surface is easy to scratch, and the thermal stability is not good, so it will become soft at 100 degrees.

3. Resin lens material.

The material of this lens is liquid, which is a high-quality lens material widely used today. Advantages: Light weight, reduce the pressure of glasses when wearing, and make wearing more comfortable. Impact-resistant, non-breakable, and obtuse angles even after breaking.

The absorption of ultraviolet rays is much stronger than that of glass lenses, especially after the addition of anti-ultraviolet elements. Low thermal conductivity prevents the lenses from fogging. Disadvantages: The lens of this material has poor wear resistance, is easy to scratch, and has a relatively low refractive index.

Fourth, natural lens material.

The lenses of this material are made of quartz, which has the advantage of having a relatively high hardness and is not easy to wear. Disadvantages: It does not completely absorb the ultraviolet rays of sunlight and does not reduce the transmittance of infrared rays.