Watch Straps MIM Parts

Product Introduction

Watch strap material classification
• Precious metal material
1) Platinum
Is a rare and expensive natural pure white metal, it is one of the rarest precious metals used in jewelry in the world, with an annual supply of only 5% of gold, has almost twice the strength of gold, and is 30 times rarer than gold. The luster of platinum is white, natural and pure, with a purity of over 90%. It is natural and will not fade when worn frequently. Pt900 means platinum jewelry with a purity of 90%, and Pt950 means platinum jewelry with a purity of 95%.
2) K gold
Karat gold refers to an alloy mixed with gold and other metals. Because it is Karat Gold in English, it is called K gold for short. For the precious metal part, pure gold is 24K, but pure gold is too soft to make watches. It must be mixed with other metals to strengthen the hardness. Generally, silver, copper and palladium are the main materials, but no matter what kind of metal is mixed, the proportion of pure gold is 75%. . With the ratio of gold, silver and copper, five kinds of materials with different colors can be produced, and the copper content is represented by N. For example, the red gold with the highest copper content is represented by 5N, and the correct term for platinum is white. K gold.
3) Half gold
The combination of stainless steel and 18K gold materials presents a unique two-color aesthetic.
4) gold clad
Its Watch straps MIM Parts are made of stainless steel, covered with a layer of gold alloy, and are mechanically rolled into a whole. The thickness is measured in microns, and 1 micron is equal to 1/1000 mm. Up to 10 to 15 microns thick, generally only 2 to 3 microns.
5) Plating
(Gold plating, thanks to brother wiiasa, electroplating should be placed in the precious metal properties, explain below the court session) Electroplating is a common case decoration method in modern watches. Electroplating technology rose in the 1970s. Because electroplating is uniform and firm, the cost is lower than gold plating. It is not easy to fall off, and there is no possibility of discoloration and rust of the forged yellow shell, so the two will be eliminated from the market soon.
6) silver
In terms of silver purity, 925 is not the highest purity of silver! You can see that domestic real-time silver prices are 99.99%, 99.95%, 99.90%, three kinds of trading purity, these three are too soft, not suitable for jewelry, generally 92.5% is the most suitable for jewelry (hardness, ductility etc.), so 925 can also be called sterling silver. But not really sterling silver. "Silver is an ancient precious metal. It is the most commonly used material for pocket watches in the eighteenth century and before. 925 represents the purity of silver, which is the highest purity of silver (not the highest purity, the common one is 925-suitable for jewelry, 975- -Suitable for tableware, 990, there are more pure - court note). Silver is an active metal, which is easy to chemically react with sulfur in the air, and a black oxide layer appears, which makes silverware black. Now it is on the table It is far inferior to gold in application, because it is very easy to tarnish due to water, moisture and other reasons.

• Other metal materials
1) Copper
In watches, copper is the best thing. It is cheap and easy to process. It is mainly used in movements, and most movements use brass alloy splints. Usually the movement colors we see are yellow and white. The yellow movement is usually plated with titanium oxide, and the white movement is zinc-nickel alloy.
2) Compounds of steel, chromium and nickel
Stainless steel, a compound of chromium and nickel. Stainless steel is difficult to process, and its corrosion resistance and wear resistance are better than the former. The surface can be electroplated or not. Sensitive appearance.
3) Titanium metal
Due to the upsurge of all-steel watches, titanium has gradually emerged. Its material is called "aero-age" metal. What is titanium metal? Titanium metal is found in the crust of the earth, and its appearance can be bright and shiny metal, or silver gray, dark gray powder. Titanium is a light, hard, heat-resistant and cold-resistant metal with an oxide film on the surface to prevent wear and rust.
4) Tungsten titanium alloy
First press tungsten carbide and titanium carbide powder into the blank with a pressure of 1000 Pa, then die-cast the mold, and then sinter it into a very high-density part in a special furnace at a high temperature of 1450 degrees Celsius, and finally go through multiple processes and use it Glittering tungsten-titanium alloy is made after diamond powder grinding, which has good wear resistance.
5) Tungsten steel
High hardness, wear resistance, clear appearance lines, clean and bright, known as "wear-resistant material". It can be used in combination with steel to make watch case rings or straps and grains to increase the wear resistance and decoration of the surface of the case and belt. (Add a sentence during the court session, tungsten steel has a disadvantage, that is, it is too heavy)
6) Precision Ceramics
Precision ceramics are smooth, wear-resistant, and do not hurt the skin. The main component is zirconia, which can obtain good processing performance under certain temperature conditions. Then, through advanced processing methods, it can be made into exquisite watch cases and watch straps. It can also be processed by special methods. Various colors, more gorgeous and noble.
7) High-tech ceramics
The extremely fine zirconia or titanium carbide powder is injected into the mold under high pressure, and then formed into non-wear-resistant ceramic parts in a sintering furnace at a high temperature of 1450 degrees Celsius; then polished with diamond powder, it can be made into a unique glossy high-quality Technical ceramics.
8) High-tech lanthanum
The rare rare earth element lanthanum is crushed and refined into particles, and the rough embryo is put into a furnace and compressed under high temperature and high pressure. Its hardness is higher than that of tungsten-titanium alloy and high-tech ceramics, it is less prone to wear, and it emits a mysterious light.
9) Blue Steel
Blue steel is a kind of steel formed through a special smelting process, so it emits a blue halo color. Blue steel is mainly used for hands. In addition to being beautiful, it is also more corrosion-resistant.

Metal Injection Molding Process

Detection Systems