casting coating

(1) Development of water-based quick drying and self drying casting coatings The water-based casting coating has the advantages of low

(1) Preservation of casting coatings Prevent drying; Prevent freezing; No entry of mold and miscellaneous bacteria; After use, it shall

Influencing factors of sand sticking defects of castings: unreasonable chemical composition of casting coatings; Insufficient fire resistance; Insufficient coating thickness;

Generally, for a qualified casting coating product, in order to ensure the normal realization of the function of the casting

In order to achieve the ideal performance, the coating should have a series of properties, mainly including physical and chemical

(1) According to different carrier solutions, it can be divided into: water-based coatings and alcohol based organic solvent casting coatings;

(1) Prevent sand sticking of castings. After the coating penetrates into the surface of the sand mold (core), fill the

Casting coating is a commonly used auxiliary material in casting production. It is a physical suspension dispersion system in colloidal

1.Effect of the amount of suspending agent on the properties of spray casting coating Based on the basic research and

1.Raw materials and instruments 1.1 Raw materials White corundum [M (Al2O3) ≥ 99%], attapulgite, CMC (sodium carboxymethyl cellulose), PVA (polyvinyl

Drying is the process of removing the carrier from the coating. The sand core should be dried in time after

Suspensibility refers to the ability of coating to resist stratification and precipitation of solid refractory powder. On the premise of

In order to effectively solve the problem of core breaking during sintering of water jacket and oil passage of cylinder

1. Test results and analysis Four kinds of suspending agent: HB type suspending agent, Henan Xinyang bentonite, Hebei Zhangjiakou bentonite,

1. Refractory powder Commonly used refractory powders include zircon powder, brown steel jade powder, bauxite powder, quartz powder, mullite powder,

1.Properties of flow coating (1) The rheological properties meet the requirements of flow coating process. (2) Suitable coating thickness. Generally,

1. Brushing and swabbing 2. Dip coating 3. Spraying (1) The pressure of compressed air system is usually 500-600kpa. (2)

As an advanced casting method, lost pattern casting is paid more attention to and applied to the production of high