Titanium powder metal injection molding eyeglass frame MIM parts

Titanium powder metal injection molding eyeglass frame MIM parts

Titanium metal has good corrosion resistance, similar to platinum (commonly known as platinum), its mechanical properties are excellent, its texture is light, and its unit weight is only 48% of general metal, so titanium is an ideal material for eyeglass frames, because it has incomparable lightness, elasticity, corrosion resistance, etc. However, the production cost of titanium and titanium alloy glasses is relatively high, and there are special high requirements for the process in cutting, stamping, welding and electroplating (for example: welding must be done in a vacuum), so the price is relatively expensive.

With the increasing maturity of the research and development of titanium materials and the processing technology, a variety of titanium-based frames such as pure titanium, B titanium, and memory titanium have appeared on the market. Among them, the purity of the frame of pure titanium material is required to reach 99.9% (excluding gaskets, screws, stipules and leg covers), and its full name is PURETITANIUM, or abbreviated as Ti-P, etc. However, driven by profit, some manufacturers also put the above mark on some non-pure titanium or titanium alloy materials. In addition, consumers are not able to identify pure titanium frames, which causes rust on the frames and skin allergies after consumers wear titanium frames, which damages the interests of consumers. The following are some simple ways to identify pure titanium frames.

1. Weigh the weight with your hand. Usually, the specific gravity of alloy frames is about 8.9g/cm3, and the specific gravity of pure titanium frames is about 4.5g/cm3. Since the weight of titanium material is equivalent to half of that of alloy frames, it is lighter when weighed by hand. This is one of the simplest ways to distinguish titanium frames from non-titanium frames.

2. Observe the welding points of the nose pad stem and the nose pad leaf bucket. The welding of pure titanium material is vacuum oxygen-free welding, and the weld mark here is "step" shaped. The welding of alloy material is spot welding, and the weld mark is "slope" shaped. This is one of the effective ways to distinguish titanium frames from non-titanium frames.

3. Observe whether there is a gasket at the hinge joint. The pure titanium frame should not have direct contact with titanium at the hinge part, otherwise it is easy to wrinkle the joint and the temples will not open and close smoothly. Usually, two thin gaskets are embedded in the hinge part of the pure titanium frame to separate the upper and lower hinges. Therefore, checking whether there are gaskets at the hinge is also a good way to identify whether it is a pure titanium frame.

4. Use a magnet to make a magnetic reaction, loosen the frame hinge as much as possible, and use a magnet to attract it in a free state. If the temples shake under the attraction of the magnet, it means that the frame is not made of pure titanium. Otherwise, it means that the frame may be made of pure titanium.

The markings of other titanium frames and titanium alloys are as follows:

Pure titanium for frame + frame Titan-P or Ti-PPURETITANIUM

Pure titanium for frame Front-Titan-P or F-Ti-P

Pure titanium for temple Temple-Titan-P or T-Ti-P

Titanium alloy for frame + frame Titan-C or Ti-C

Titanium alloy for frame Front-Titan-C or F-Ti-C

Titanium alloy for temple Temple-Titan-C or T-Ti-C

Some merchants say that only the frame is pure titanium for the frame + frame, which increases the price. Customers are often easily fooled, so be sure to recognize the markings when purchasing to avoid being deceived.

Qinhuangdao Zhongwei Precision Machinery Co., Ltd. is a member of the China Machinery Association Powder Metallurgy Association, integrating processing, production and sales. It is mainly engaged in powder metallurgy products and investment casting products. It can produce titanium alloy, tungsten alloy, stainless steel, high temperature alloy, iron-based and other products, and has a domestic powder metallurgy production line. It has advanced production technology, complete testing methods and strong technical force.

Over the years, the company has adhered to the principle of "quality first, customer first" and provided satisfactory products and services to major group companies and users. The company's quality management and quality assurance system are constantly improved, improved and improved, and has gained a good reputation. It has been rated as a "quality trustworthy unit" and "consumer satisfaction unit" by users and consumer associations. We are willing to work hand in hand with friends from all walks of life to create a better future.