In the Malcomizing heat treating process the passive oxide surface film of the stainless steel is broken down to permit nitrogen diffusion into the steel, at relatively low temperatures. This increases the Hardness to around 64-68 Rockwell C.
Latest posts
-
Specifying Disperser Blades
Blade Style, diameter, the material of construction, wear treatments need to be considered when ordering a dispersion baldes.
-
Dispersion Blade Diameter
The blade diameter should be roughly 1/3rd the diameter of the vessel...
-
Dispersion Rules of Thumb
The "Rules of Thumb" present a very good starting point, for specifying disperser.
-
MixScale - Scale of Agitation
Mix Scale is used to quantify the mixing intensity needed for a given process as well as provide a frame of reference for mixing scale-up.
-
Dispersion Blade Designs
Most dispersion blades are formed from a circular disk of material, typically 304 stainless steel. Teeth are formed around the perimeter of the disk by cutting slits into the disk and bending the resulting tabs.
-
Disperser Blade Wear Treatments
Due to the high tip speed of the dispersion blade, dispersion blades are subject to wear. Depending on formulations this wear can be severe. DisperseTech offers several wear treatments.
-
LOUVERED BLADE MOUNTING CONSIDERATION
Beyond impeller bore configurations, with the Conn styles as well as other louvered or vented styles open area in the center of the impeller must also be considered. Typically, reinforcing discs, taper plates, sandwich the blade to stiffen the disperser disc. Due to the louver placement on the conn blade, the size of these disks, and with small sizes - the diameter of the mounting hub must be considered.
-
Disperser Horsepower Formula
Of all the "Rules of Thumb" the issues resulting from this pose the most severe issues. While not difficult to calculate, Blade Horsepower does not correlate well to a simple Volume to power relation. Most disperser manufacturers rely on a modification of the agitator horsepower relationship.
-
Tip Speed Definition and Formula
Blade Speed (tip speed), measures how far a point on the outer most edge of the disperser blade travels in a given amount of time
-
DISPERSER CONFIGURATION
The design of a dispersion system begins by defining the batch size and product characteristics. From there we can begin to determine blade size, types, and number which will then allow us to define shaft rpm and horsepower requirements.
-
Tank Cleaning Equipment Choices
Cleaning Process tanks used in the manufacture of high viscosity products and products that are not dissolved by the cleaning solution is a huge challenge facing manufacturing. Washing your tanks is not a simple feat. In many plants, this duty falls to the least experienced operators and involves; rags, scrapers, solvents, and TIME.