A Yes. But depending on casting size, location, hole size and positional tolerance, they can often be introduced to the part more effectively via secondary operations.

A The way to inspect the performance of roughcast is as below ① to sample the materials located in the front, middle and behind of whole sintered oven. ②take the test sample column (The dimension is around D10*15mm) in the block roughcast.③ get the result to use the Automatic magnetic tester.④ Analysis all data, then determine the material are qualified or not.     

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.

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.

 

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.

A Stainless steel annealing rapid cooling easy to produce stress, so it is best to choose slow cooling.

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.

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.

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.

A

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. 

A Sand and investment casting have similar processes, but sand casting cannot always make small, intricate parts. Sand casting also often utilizes heavier weight limits, sometimes greater than a ton.