Ningbo Yinzhou Hisea Machinery Co.,Ltd.

1045 Steel Casting Agriculture Spares Shell Mold Casting

Shell Casting

Principles and processes of craftsmanship

1. Preparation of coated sand:

Quartz sand+thermosetting phenolic resin (binder)+Urotropin (curing agent)+Calcium stearate (lubricant) → Mix evenly to make coated sand.

2. Shell making:

Template preheating: Heat the metal template to 230-300 ℃.

Sand covered crust: Template buckle film sand box, flip to make the sand particles adhere to the hot template, and the resin melts.

Curing and shaping: Keep heating, the resin crosslinks and solidifies to form a hard thin shell.

Demoulding and shell removal: The ejector mechanism separates the sand shell from the template.

3. Shell type combination:

Assemble the two halves of the shell into a complete cavity using fixtures or resin adhesives.

4. Pouring and Cooling:

Place the shell into a sand box filled with sand support, pour molten metal, and cool to solidify.

5. Shedding and cleaning:

Crush the sand shell, remove the casting, and clean the burrs.

Advantages:

1. Dimensional accuracy:

The metal template ensures the stability of the cavity size, and the casting tolerance is significantly smaller than that of ordinary sand casting.

2. Surface smoothness:

The combination of fine coated sand and smooth template results in a delicate casting surface, reducing cleaning and machining costs.

3. High production efficiency and automation potential:

Short shell making cycle, suitable for assembly line operation;

Easy to achieve automation in shell making and molding, with an efficiency 5-10 times higher than manual sand molds.

4. Stable and consistent quality of castings:

The shell has high strength, is not easily deformed, and reduces sand flushing and box expansion defects;

Moderate breathability reduces the risk of porosity.

5. Good adaptability between materials and design:

Suitable for materials such as cast iron, cast steel, copper alloy, aluminum alloy, etc;

Can produce complex structures with small sand cores.

6. Cost savings:

The sand consumption is only 1/10 of that of green sand, and the old sand can be recycled and reused;

Reduce machining allowance and lower metal and labor costs.

Application areas:

1. Automotive components: crankshaft, camshaft, connecting rod, gear, rocker arm, small housing, brake drum.

2. Hydraulic and fluid systems: valve body, pump casing, fittings, hydraulic motor casing.

3. Construction machinery: sprockets, bushings, wear-resistant plates, small transmission components.

4. General machinery: gear blanks, flanges, pipe fittings, hardware tools (wrenches, pliers).

5. Agricultural machinery: seeder parts, harvesting blades, transmission box.

Here are some of our company's product displays:

Production & Processing

1045 Steel Casting Agriculture Spares Shell Mold Casting

Shell CastingPrinciples and processes of craftsmanship1. Preparation of coated sand:Quartz sand+thermosetting phenolic resin (binder)+Urotropin (curing agent)+Calcium stearate (lubricant) → Mix evenly to make coated sand. 2. Shell making:Template preheating: Heat the metal template to 230-300 ℃. Sand covered crust: Template buckle film sand box, flip to make the sand particles adhere to the hot template, and the resin melts. Curing and shaping: Keep heating, the resin crosslinks and solidifies to form a hard thin shell. Demoulding and shell removal: The ejector mechanism separates the sand shell from the template. 3. Shell type combination:Assemble the two halves of the shell into a complete cavity using fixtures or resin adhesives. 4. Pouring and Cooling:Place the shell into a sand box filled with sand support, pour molten metal, and cool to solidify. 5. Shedding and cleaning:Crush the sand shell, remove the casting, and clean the burrs. Advantages:1. Dimensional accuracy:The metal template ensures the stability of the cavity size, and the casting tolerance is significantly smaller than that of ordinary sand casting. 2. Surface smoothness:The combination of fine coated sand and smooth template results in a delicate casting surface, reducing cleaning and machining costs. 3. High production efficiency and automation potential:Short shell making cycle, suitable for assembly line operation; Easy to achieve automation in shell making and molding, with an efficiency 5-10 times higher than manual sand molds. 4. Stable and consistent quality of castings:The shell has high strength, is not easily deformed, and reduces sand flushing and box expansion defects; Moderate breathability reduces the risk of porosity. 5. Good adaptability between materials and design:Suitable for materials such as cast iron, cast steel, copper alloy, aluminum alloy, etc; Can produce complex structures with small sand cores. 6. Cost savings:The sand consumption is only 1/10 of that of green sand, and the old sand can be recycled and reused; Reduce machining allowance and lower metal and labor costs. Application areas:1. Automotive components: crankshaft, camshaft, connecting rod, gear, rocker arm, small housing, brake drum. 2. Hydraulic and fluid systems: valve body, pump casing, fittings, hydraulic motor casing. 3. Construction machinery: sprockets, bushings, wear-resistant plates, small transmission components. 4. General machinery: gear blanks, flanges, pipe fittings, hardware tools (wrenches, pliers). 5. Agricultural machinery: seeder parts, harvesting blades, transmission box. Here are some of our company's product displays:

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