Descripción del producto

Name:coated sand; resin-coated sand;

Product features:
 

• The SiO content of the original sand is high and the particle size is reasonable, which can effectively prevent the casting of steel from sanding;
• Non quartzite sand can be used as a substitute for zirconium sand in special steel castings;
• The strength of the coated sand can be greatly improved by the selection of the original sand, the phase change treatment and the activation treatment;
• Reducing the amount of resin and curing agent, the composite resin can effectively improve the cold and heat strength and avoid the subcutaneous blowhole;
• The composite curing agent makes the coated sand do not produce ammonia in the process of making core and pouring, and improves the working environment;

• The general category of coated sand; composed of quartz sand, novolak resin, urotropine and calcium stearate, without the additives, suitable for the production of ordinary cast iron;
• High strength and low gas coated sand:High strength and low gas is the product of the common coated sand coated sand by adding additives and relevant updates, prepared by the new process, the strength of coated sand than ordinary high above *0%, gas is greatly reduced, suitable for the production of complex precision castings;
• High temperature resin coated sand;The characteristics of high temperature and long heat resistance at high temperature; it is suitable for producing complex thin walled iron castings such as automobile engine cylinder block, cylinder head and container angle;
• Easy collapsibility kind of coated sand; has better strength and excellent low temperature collapsibility, suitable for the production of non-ferrous metal castings;
• Other coated sand of special requirements; in order to meet the needs of different products, a series of special coated sand have been developed, such as coated sand for centrifugal casting, chilled sand covered, wet coated sand, anti sticking sand, anti vein coated sand, anti orange peel coated sand, etc.

• Valve shell, bumper joint, steel shaft, engineering excavator, container angle piece, etc(Molding materials for cast steel parts);
• A new type of coated sand products are widely used in: valve shell, buffer joint, steel shaft.