"IF YOU CAN DRAW IT, WE CAN MAKE IT!"TECHNOLOGY FOR THE 21ST CENTURY
Sand Is An Important Factor In Stainless Steel Casting Parts
Stainless Steel Casting Parts, is a variety of stainless steel production of steel products in general, mainly used for a variety of media corrosion conditions. Sand in the production of stainless steel castings is very important in the selection and use of sand is also a certain requirement. Commonly used in the following several kinds.
Stainless steel casting parts production is the key part of the sand treatment part, as the name suggests is to deal with dry sand, choose these sand itself is less dust, the effect will naturally be good, especially the pearl sand, and even if there is no sand processing, artificial sand Dust, then it is relatively more convenient point. Stainless steel casting parts commonly used dry sand is generally washed quartz sand, sea sand, and sapphire sand, the size is generally 20 to 40 mesh, mainly based on its degree of fire resistance, that is, silicon content can not be less than 95%, then from him Of the permeability of the choice, the first two kinds of sand for the general casting, more economical.
Baozhu sand is artificial sand, the performance is better, more durable, but the price is four to five times higher than ordinary sand, one-time investment costs will be relatively large, but long-term use because of his low loss rate, regardless of the cost or casting quality is better than ordinary casting sand. Stainless steel castings used in the sand of the two have their own advantages, depending on their own specific circumstances or choose.
When we use stainless steel casting parts, we often appear when the anodic oxide film stained with white spots. The reason for this situation is because the stainless steel castings loose, high porosity, containing a variety of metal and non-metallic impurities, so the quality of the oxide film is often more difficult to guarantee. So you can look for ways to prevent oxidation.