すばらしい補助材料

このブログでは、純粋な金属、合金、セラミックス、ミネラルなど希少な先端物質に関する幅広い知識についてのブログです。

What are The Uses of Zirconium Silicate Grinding Media

2019-05-22 13:49:37 | 日記
Zirconium Silicate Media is a one of its kind product that provides its users with top quality as well as the superior level of grinding with higher wear resistance, better cost-effectiveness, and a reduced overall contamination rate. Zirconium Silicate beads are formulated within strict quality control laboratory containers wherein they undergoing specialized dripping technique followed by high-temperature sintering and an eventual surface conditioning. This super hard media is the ideal solution for milling specialized and complex products in comparison to other alternative grinding media options such as glass beads or Alumina.

The basic characteristics of a good quality Zirconia grinding media are that they are high in density, shiny and smooth in appearance and consist of a uniform solid spherical shape which in turn assures of better efficiencies, decreased media wear and a much longer life span respectively. Additional specialized techniques such as solidifying the media from surface to center results in further strengthening of the molecular structure of ZrSi beads.

Zirconium silicate media balls exist in varying sizes and diameters in accordance with each buyer’s prerequisites. ZrSi04 applications and uses are tremendous and widespread from everyday products such as paints and inks to ceramics, pharmaceuticals and even in controlled quantities within edible food materials.

Zirconium Silicate grinding media plays an integral role as an emulsion agent in order to achieve a ceramic glaze in refractory’s and on cutlery etc. Also being chemically inert and nonreactive allows ZiSi04 media to be used for grinding plastic on a mass level and at economical costs. Moreover, zirconium casting refractories metals of all kinds utilize this media for operational purposes within glass melting furnaces, cement production and heat/fire resistant porcelain among many others.

On a generalized level, Zirconium Silicate grinding media performs numerous operations including mold cleaning of stainless steel, plastic as well as non-ferrous materials, mechanical polishing, buffing, and eventual after-cleaning processing.

On an overall rating scale, the benefits of this industrial product being extremely dense and strong results in creating an ideal surface roughness and metallic depth with a much lower breakage or contamination rate comparatively. These attributes, in turn, renders Zirconium Silicate milling balls suitable for application on all types of materials and within both wet and dry environments easily.

For more information about platinum, please visit http://www.samaterials.com/

The Influence of Rare Earth Addition on Cast Magnesium Alloy

2019-05-22 13:29:08 |  化学物質のニュース
The application of Magnesium Alloy has been rapidly developed since the 1950s when rare earth metals were used as alloying additives. The addition of rare earth metals in magnesium alloys greatly improves the creep resistance, the strength properties both at room temperatures and elevated temperatures and the castability of Magnesium Alloy.

Below are three types of magnesium alloys containing rare earth metals:

1.Mg-RE-Zr Alloy
Mg-RE-Zr (Mg-3RE-0.1Zr) Alloy is widely used in aero-engines due to its high strength properties and good creep resistance at 205℃.

2.RE Mg-Zn-Zr Alloy
ZK51 (Mg-4.5Zn-0.6Zr) has a tensile strength of 280MPa, but its castability is poor. However, the addition of RE will greatly improve the castability because the Mg-Zn-RE compounds which appear after adding RE will be distributed over the grain boundary in the form of divorced eutectic.

ZE63A (Zn-6wt%, RE-2.5wt%, Zr-0.6wt%) has been applied in the thrust reversal of the RB211 engine for years. It has a tensile strength of 276MPa, yield strength of 186MPa and ductility of 5%.

3.Y-Mg Alloy
Yttrium has a good solution strengthening effect on Magnesium Alloy, which results from the blocking of yttrium solution by heat-resistant compounds in matrix and grain boundary. Therefore, Y-Mg Alloy has good thermal strength properties and even has the same elevated temperature property as Thorium-Magnesium alloys. Moreover, Yttrium-Magnesium Alloy also possesses excellent high-temperature oxidation resistance. Magnesium Alloy containing 9 wt% Yttrium only gained a weight of 1 mg after being heated to 510℃in moist air and kept for 98 hours while Thorium-Magnesium Alloy gained a weight of 15 mg.
For more information, please visit http://www.samaterials.com/