Category: ‘Surface’
The classic use of a BA finish is domestic: the interior of a dishwasher or clothes washing machine. In the clothes washer, it also provides a smooth, non-abrasive surface for the clothes to slide around. The mirror like surface ... Read More...
2D is used around the world in applications where its low reflectivity is important. The largest application is in roofing materials. The surface is rougher than 2B and retains lubricants better making it appealing for deep drawe... Read More...
2B is the most widely used stainless steel surface finish. It is especially common in industrial, chemical and food processing applications such as process vessels and tanks. It is also used in some architectural applications tha... Read More...
Cold rolled finishes apply to flat products such as sheet or coil, with thickness less than about 5mm and usually less than 3mm. They are firstly hot rolled into a strip (or cast into a slab which is hot rolled into a strip) and ... Read More...
Molybdenum vanadium steel is a specialty steel most commonly found possessing a high percentage of chromium, therefore placing it in the stainless steel family of steels. This steel is prized for its excellent wear resistance, a ... Read More...
Halogenated gases are employed in semiconductor manufacturing for a wide number of processes, including plasma etching of polysilicon, diffusion furnace cleaning and oxidation processes. The selection of components for use in a... Read More...
The demand for the delivery of ultra-high purity (UHP) gas to the process tool has resulted in the implementation of ultraclean gas distribution systems within the semiconductor industry. The gas distribution systems are design... Read More...
High purity chemicals used in the semiconductor industry must contain minimal particulate and microbubble contamination. The presence of microbubbles in semiconductor chemicals can adversely affect the performance of a filter... Read More...
Zinc-rich paints contain 65-94% metallic zinc in the film of the paint after it dries. The paints are usually applied by brushing or spraying onto steel that has been cleaned by sandblasting. While white metal blasting (NACENo. 1... Read More...
Production Process
Small iron and steel parts may be coated by drum tumbling with a mixture of proprietary promoter chemicals, zinc powder and glass beads. After cleaning, the parts, which are usually limited in size to about 8-... Read More...
Production Process: Zinc plating is identical to electrogalvanizing in principle in that both are electrodeposition processes. Zinc plating is used for coatings deposited on small parts such as fasteners, crank handles, springs,... Read More...
High speed flow finishing method has recently developed, which has an excellent performance for polishing an inner wall of stainless steel capillary D Present paper focuses on the finishing characteristics of the inner wall of st... Read More...
Friction welding of various aluminum alloy pipes to SUS304 stainless steel pipe was carried out making clear weldability at dissimilar material pipe.
AISI1050/SUS304,A5052/SUS304,A5056/SUS304, A6061/SUS304 and A6063 /SUS304 join... Read More...
Grit: Measures the number of scratches per linear inch of abrasive pad. Higher numbers indicate a smoother surface
Standard Grit
(reference only)
Ra µin
Ra µn
RMS µin
RMS µn
150
27 - 32
0.68 - ... Read More...
Measuring and specifying surface finish has, until recently, been left to a varying amount of speculation. The number of different standards being used by different equipment manufacturer has created a great deal of confusion and... Read More...
Electro polishing is a process combining electric current and chemicals to remove surface material; it is the most effective method of removing burr, folds, inclusion and other abnormalities. Peaks are removed quicker than valley... Read More...
Mechanical polishing or machining leaves numerous surface scratches which cause areas of differing electrical potential due to surface stresses. An electropolished surface is essentially balanced.
Local corrosive cells cannot be... Read More...
Hardness measurement can be defined as macro-, micro- or nano- scale according to the forces applied and displacements obtained.
Measurement of the macro-hardness of materials is a quick and simple method of obtaining mechanical... Read More...
All contacting surfaces are directly affected by surface friction. Surface friction allows control of all forms of motion. The notes below provide some background into the theory on the factors affecting the coefficient of sur... Read More...