Surface Treatment

Before the aftertreatment of the product or equipment starts, SMI Plaatwerk starts (but also during the production process) with a wide range of extensive quality controls to guarantee maximum quality of the product. If desired, we can, in addition to our own standard quality checks, perform additional quality checks.

When the construction or equipment is produced, it is conserved to extend the service life, durability and maintain the quality. Expertise in this area is therefore of great importance. When desired, surface treatments are applied to the equipment and products produced by SMI Plaatwerk which include hardening, coating, galvanizing, grinding and polishing. These processes also takes place under constant supervision of quality inspection to meet the highest standards in order to provide the best quality. Contact us to see which surface treatments fits your project the best.

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Coating Processes

Metals are by far the most used type of materials in construction of equipment and products due to the long service life properties. Besides the standard long live cycle, the material can be preserved by a coating, the choice and finish of the material, as well as the pre-treatment and the coating are decisive for the life of the preservation. A coating can be applied in multiple layers depending on the application and required product life to extend it even further. This way it is protected against moisture, fire and weather influences. The required result of look and durability can be created by the surface treatment process powder coating or by spray painting the metal.

Pickling & Peening

Metal surfaces can contain impurities that may affect usage of the product or further processing like plating with metal or painting. Pickling and passivating is a metal surface treatment used to remove impurities, such as stains, inorganic contaminants, rust or scale from stainless steel. A solution called pickle liquor, which usually contains acid, is used to remove the surface impurities. It is commonly used to descale or clean steel in various steelmaking processes.

Peening is a surface treatment processing technique in which a surface of a relatively soft material such as stainless steel is pelted with glass beads. When broken glass granules are used, the surface is stripped of contaminants and roughened. In that case, the processing is equal to that of sandblasting which creates a smooth and clean surface.

Galvanishing

Galvanishing or electroplating is the surface treatment process of applying a protective layer of metal as a coating to steel or iron to prevent rusting and scratches. Electricity is used to cover an object with a layer of metal such as zinc, nickel, chrome or other metals. Galvanizing is often used as a synonym for electroplating with zinc. However, electroplating with zinc can be carried out with two totally different processes, electrolytic galvanizing and hot dip galvanizing. The latter is actually not electroplating as it does not use electric power.

When using galvanizing as the surface treatment for metal with a coating of another metal, properties of both metals can be used. The advantages of galvanizing are: less prone to corrosion, a more attractive appearance (gloss and color), and scratch resistance, which is related to the hardness of the materials used.

Durability & Quality

Delivering the best possible quality is incorporated in our mission and vision. To guarantee the best service and quality, the SMI Groep has set several values: supply world-class quality, lean-manufacturing, act as a pro-active reliable partner, and understand and deliver customer expectations. One way of guaranteeing a high quality product is by delivering a product that will last a life time and which creates maximum safety at the workfloor. By applying these surface treatments to our equipment and products, SMI makes sure that the product meets the requirements and will perform as it should for the years or even decades to come. Contact us to learn more about our possibilities

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REFERENCES

Delta Combiscope

SMI Plaatwerk builds the complete casing for Delta Instruments of the so-called combiscope. An ingenious device which analysis samples from milk, quickly and reliably. SMI not only produces all sheet metal parts, including the surface treatments, but assembles all parts (including purchase parts) into a completely assembled end product, this way the customer can build and test immediately upon arrival.

Delta Instruments

Drachten - NL

Laser cutting Parts

SMI Plaatwerk also supplies single, series-cut products. These parts, for example, are laser-cut, including the small holes with a total diameter of 0.6 times the plate thickness. After galvanizing, bearings are pressed in, all internal carried out by SMI. Deliveries are then carried out in specific Kanban trays, for direct delivery to the production without the need for further repacking.

Defense Vehicle

The Dutch defense takes a new type of off-road vehicle into use. SMI Plaatwerk, commissioned by Defenture, has built the frames. It concerns the chassis and the superstructure. These are for the new ATTV (Air Transportable Tactical Vehicle). This is the new lightweight vehicle of the commands. Defense has given the vehicle the name: Vector.