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Q Can you provide crating for international shipments?
A Yes. We provide EN compliant wood packaging.
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Q HOW WILL YOU PACK MY ITEMS TO ENSURE THEY ARE WELL PROTECTED?
A We evaluate each individual item in any shipment and determine the best way to protect them and meet your needs. We consider the characteristics of the items, the financial, strategic and/or sentimental value of the items, the weight, and the mode of transportation to determine how the items will be packed.
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Q CAN WE PAINT OVER HOT DIP GALVANIZING?
A Duplex system, as painting over hot dip galvanized steel is known, is an extremely efficient corrosion protection system. Proper surface preparation is essential to avoid possible adhesion problems. Depending on the age of the zinc layer the required surface preparation is established. Hot dip galvanized steel can be painted successfully in a wide range of colors.
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Q DOES THE COATING PRESENT SUFFICIENT ADHESION TO THE SUBSTRATE AND ABRASION RESISTANCE?
A The metallurgical bond that the coating forms with the substrate layer at the immersion in the molten zinc confers an excellent adhesion and abrasion resistance to the coatings obtained by hot dip galvanizing. Zinc intermetallic layers formed during the galvanizing process have a higher hardness than steel substrate.
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Q WHAT IS THE LIFESPAN OF HOT DIP GALVANIZED PRODUCTS?
A Hot dip galvanized steel has good corrosion resistance in most types of atmospheres. Usually the life of hot dip galvanized steel exceeds 70 years depending on the thickness and atmospheric corrosivity.
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Q DOES HOT DIP GALVANIZING NEED SPECIAL SURFACE PREPARATION?
A Galvanizing requires no special preparation of the surface, this being achieved in the galvanizing process. Welding slag, paint and grease abundance though can not be removed through the specific surface preparation steps and must be removed before being sent to the galvanizer.
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Q WHAT IS HOT DIP GALVANIZING?
A Galvanizing is a process for corrosion protection of steel that consists of specific surface preparation and dipping it into a bath of alloyed molten zinc at 450 ° C for 3-10 minutes. Following this process, on the steel surface a coating is formed due to the reaction between Fe and Zn having a metallurgical bond with the substrate, consisting of several layers of intermetallic compounds with different concentrations of zinc. This coating has a very good resistance to corrosion, abrasion, impact, thermal shock a.o.
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Q Can stainless steel anneal be fast cooled?
A Stainless steel annealing rapid cooling easy to produce stress, so it is best to choose slow cooling.
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Q Can I weld mild steel to high yield steel?
A Yes, provided that the welding procedure, particularly any preheat, is designed for the high yield steel. This may mean using basic low hydrogen MMA (SMA) consumables. It is also a convention that the weld metal matches the strength of the weaker of the two components although this is not invariably the case. However, it must be recognised that the strength of such a joint will always be limited by the magnitude of the mechanical properties of the mild steel.
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Q What's the difference between Brazing and soldering ?
A Brazing and soldering are in essence very similar in that a filler metal (the braze or solder) is melted between the two components to be joined. The distinction between the two processes arises from the temperature at which the filler melts; brazes melt above 450°C, solders melt below 450°C. -
Q What type of substrate can your system handle?
A Our systems can handle a variety of substrates including steel, aluminum, zinc die cast, and brass.
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Q Which finish gives the best protection?
A Each finish has a distinct protective advantage. Zinc plating is cost competitive and can provide for short term corrosion resistance. E-coating provides greater corrosion resistance and can be applied consistently, but is limited to the color black. Powder coating provides the most flexibility in color choices and has excellent durability characteristics, however powder coating is on average the most expensive of the three processes.
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Q What is E-coating?
A E-coating (electro-deposition) is a paint method in which electrical current deposits paint onto a part or an assembled product. E-coating provides a consistent, durable coating used in automotive, lawn & garden, appliances, agricultural equipment, and marine industries. This finish can also be used as a primer.
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Q What is powder coating?
A Powder coating is a method used to apply a protective or decorative finish onto a product by spraying materials consisting of finely ground plastic particles containing pigments, resins, binders, fillers and hardeners. When these elements are exposed to heat, melting occurs to form a continuous film of durable resistance.
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Q What is zinc plating?
A Zinc plating is the process in which parts are charged via racking or barrel contact and the protective zinc coating is adhered within the bath. A protective chromate is applied after the zinc providing a greater protective finish depending on the color type of chromate applied.
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Q Can magnesium castings be painted?
A Yes, die cast magnesium components can be painted using e-coat or powder coat processes. The parts require a pre-treatment to ensure adhesion. There are several body structure applications in production that are painted as well as first surface interior components.
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Q What is the difference between the blackening and the electrophoretic painting?
A The flim of electrophoretic paint is organic and the blackening is inorganic,which function is different.
For corrosion resistance, the electrophoresis is better than blackening.
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Q What are the common surface treatments in Fuchun foundry?
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Q Does stainless steel corrode?
A Although stainless steel is much more resistant to corrosion than ordinary carbon or alloy steels, in some circumstances it can corrode. It is 'stain-less' not 'stain-impossible'. In normal atmospheric or water based environments, stainless steel will not corrode as demonstrated by domestic sink units, cutlery, saucepans and work-surfaces. In more aggressive conditions, the basic types of stainless steel may corrode and a more highly alloyed stainless steel can be used.
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Q What surface finishes are available on stainless steels?
A There are many different types of surface finish on stainless steel. Some of these originate from the mill but many are applied later during processing, for example polished, brushed, blasted, etched and coloured finishes.
The importance of surface finish in determining the corrosion resistance of the stainless steel surface cannot be overemphasised. A rough surface finish can effectively lower the corrosion resistance to that of a lower grade of stainless steel.