Archive for cobalt alloy

tirsdag, november 13th, 2018

The Quality of Cobalt Alloy Is Very Important

Cobalt Alloy is naturally ferromagnetic. The crystal structure of the cobalt alloy maintains its strength even at higher temperatures and has better wear resistance and corrosion resistance than other metals. These high performance alloys are commonly used in gas turbine blades and aircraft engines in the aerospace industry, as well as prosthetic components in the medical and dental industries.

The alloy particles used in high-quality cobalt alloy band saw blades are thicker and larger, because such carbide saw blades can withstand multiple sharpenings and have a long service life. In addition, the quality of the welding of cobalt alloys is also very important, the welds are thin and uniform, so that the saw teeth can withstand greater cutting forces.

In addition, the quality of the cobalt alloy saw blade is very important. Because the saw blade adjusts the rotation, it must not only transmit the cutting force but also maintain the stability of the work. The excellent cobalt alloy saw blade not only has static geometry and precision, but more importantly its dynamic characteristics. When the saw blade is continuously cut, the heat generated by the alloy band saw blade alloy sawtooth cutting is transmitted to the saw blade, which raises the temperature of the saw blade, and the high quality saw blade can maintain the accuracy of the state in this case. If a poor quality cobalt alloy saw blade is used, the saw blade warps will occur, which seriously affects the sawing accuracy.

The dynamic stability of Cobalt Alloy Blade and saw blades is especially important for the fineness of several cobalt alloy saw blades. How to ensure the quality of longitudinal unloading when a multi-blade sawing machine uses a set of unstable cobalt alloy saw blades.

torsdag, november 8th, 2018

Sytop Cobalt Alloy Bushing Brief Information

Cobaltalloy was established in the year of 2001, We are specialized in cobalt alloy marketing over ten years. With stable products quality, professional service, competitive prices, our customers range many countries and regions.

Product Details (Sytop Cobalt Bushing)

Sytop Cobalt Alloy Bushing is a Cobalt-Chrominum “superalloy” , they are resistance to wear ,corrosion and galling ,

also retain these properties in high temperature . that’s why it is super .

Cobalt Bushing and sleeve are the advantaged products for us , we have produced more than thousands specifications and all of them are produced upon customer’s drawing .

Co/Cr/W Alloy are famous with its great wear and corrosion resistance and mostly used in Oil & gas industry , steel industry , petrochemical industry, food industry , nuclear industry,etc.

With many years of experience in cobalt alloy, we rely on progressive production equipment and strong technician strength. We supply not only products, but also the professional suggestion on your application. We have large stock to keep the fastest delivery, in this way, our products are 100% quality guaranteed and delivery fast. Contact us and find out the right answer.

tirsdag, september 11th, 2018

Problems with Cobalt Alloy Powder Currently Used in Dentistry

Cobalt Alloy porcelain teeth Advantages: Cobalt alloy was first used for implant materials. Later, in Europe and the United States, in order to solve the allergic problem of nickel-containing metals, a cobalt-chromium alloy dedicated to porcelain restoration was developed, which does not appear alloy in the patient’s mouth. Discoloration. Cobalt-chromium alloy was first used in transplant medical treatment and used as a hip joint. This is also a sign of its biocompatibility, which is still in use today.

Metal additive manufacturing applications in dental processing require the use of metal powders that match the processing technology.

However, the cobalt-chromium alloy powder currently used in the manufacture of dental additive has the following problems:

1. Most of the cobalt-chromium alloy powders are processed by gas atomization method. The produced powder has poor sphericity, and there are many satellite spherical particles and poor fluidity, which directly affects the processing quality of additive manufacturing. Moreover, the cobalt-chromium powder prepared by gas atomization has a high oxygen content and a high nitrogen content, and the hollow ball is also present in the powder, resulting in pores inside the final molded part, which affects the use performance.

2. In order to ensure the subsequent mechanical properties, the current Stellite Plate powder will contain elements such as bismuth, cadmium and nickel, and the presence of these elements will affect the biocompatibility of the cobalt-chromium alloy. When the prosthesis is installed in the patient’s mouth, it will affect the patient’s health due to the precipitation of harmful metal ions.

3. The current cobalt-chromium alloy powders are basically produced for industrial production, so the physical and chemical parameters such as the particle size range and bulk density of the powder cannot be well matched with the additive manufacturing requirements.

Therefore, there is an urgent need for a method for preparing a cobalt-chromium alloy powder for dental additive manufacturing, which enables the prepared powder to meet the strict requirements of additive manufacturing and dental restoration.