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Normfinish, as a brand of Leering Hengelo, has been advising customers at home and abroad on an optimal blasting process for decades. Our own engineering department often plays a major role in this, especially when it comes to client-specific custom work. Below we answer a number of frequently asked questions about blast cabinets, and what is involved.
As there are various principles, this is not an easy question to answer. Generally the following applies: Injector blasting is used if there relatively little blasting is required and/or the
Blast media is used for abrasive blasting in blast cabinets, blast rooms and mobile blast solutions. In this article, we will elaborate on the different blasting abrasives and their applications.
Yes. Normfinish offers the manual and automated blast cabinets as well as blast rooms. These units can also be equipped with an automatic control with or without a robot. The
In a “dry” blasting process (injector, pressure tank and wheel blasting principle) products must be clean and dry. If not, the abrasive will become contaminated and thus also the entire
With a blast cabinet, you can blast an object with the help of a high-pressure blast. Surface blasting is a technique in which an object is ‘sandblasted’, with the aid
These are rough patches which must be measured with a roughness tester. The roughness increases the surface and provides an anchor profile (= better adhesion) for paints and powder coatings.
to get good adhesion for paints/powder coats (Ra, Rz, Rt value) for a beautiful finish (aesthetics) deburring cleaning/removing oxidation for, for example, a welding process (Sa value) shot peening peen
There are many types, the most often used being: Steel shot (= round) and steel grit (= angular) in various hardnesses, dimensions and compositions (such as stainless steel and steel)
A correct operating mix consists of a mix of fine to coarse abrasives. With a good operating mix, you can achieve the desired result in the shortest possible blast time
injector and pressure tank principle wet/dry blasting dry ice blasting shard ice blasting wheel blasting
Tensile stress in the top layer of a product is converted to pressure stress so that tearing/cracking occurs more slowly. In shot peening, a round abrasive is used, which is
All of Normfinish’s installations fulfil the NER (Netherlands Emissions Guidelines) and as an option may be constructed with an extra-fine filter. To reduce the noise level, one can use an
Depending on the abrasive and the products to be blasted, extra ATEX provisions may be required. If these are necessary, they will be included by Normfinish in the design.
The Swedish blasting norm (= Sa) exists to determine cleanliness. The blasted surface is visually compared with the image from this Swedish blasting norm. Normally blasting is done up to